Title of Invention

1-(AZOLIN-2-YL) AMINO-1,2 -DIPHENYLETHANE COMPOUNDS FOR COMBATING ANIMAL PESTS

Abstract A fire extinguisher gas ejector suitable for mount- ing on a vehicle and for use as an evacuation device has a gas con- tainer scaled with fire extinguisher gas inside a container holder to which a mouth section of the gas container is removably mounted and having in it a through hole and a nozzle hole, a seal breaking lever slidably mounted in the container holder, movably urged up- ward, and having at one end a sharp end capable of breaking the seal, a scal breaking operation member linked to the other end of the scal breaking lever, and a safety member capable of restraining operation of the scal breaking lever. A control valve is movably provided in a communication path between the through hole and the nozzle hole. The communication path can be opened and closed by movement of the control valve. The bottom of the gas container is adapted to be extemally exposable and a hammer member having a sharp end is mounted on the bottom.
Full Text [DOCUMENTATION] SPECIFICATION
[TITLE OF THE INVENTION] FERE EXTINGUISHER GAS EJECTOR
[TECHNICAL FIELD]
[0001]
The present invention is suitable for a fire extinguisher gas ejector. This
invention relates to an fire extinguisher gas ejector comprises a safety member which is
taken out easily and promptly so that a seal of a loaded small gas cylinder is quickly pierced,
jet an extinguishing gas promptly, and attempt an early fire extinction. The invention also
comprises an emergency escape mechanism from vehicle, which cuts a seat belt promptly
and breaks a windshield surely in case such as a fire in vehicle or collision, to attempt
escape promptly from vehicle. Thus, a device exclusive to escape is unnecessary.
Mechanisms for fire extinguishing and escaping are constituted rationally. The invention
also comprises a control valve which prevents a waste of the extinguishing gas after the seal
is pierced and jets the fire extinguishing gas to a fire origin surely and accurately in fire
fighting.
[BACKGROUND ART]
[0002]
Popular fire extinguishers placed at homes or offices are usually large-sized and
heavy so that they require physical strength and hard to use.
To solve above-mentioned problems, it is proposed that a variety of small and
lightweight fire extinguishers that can be used simply.
[0003]
For example, of the simple fire extinguishers, a gas cylinder is stored into a pipe
body putting a cover thereon, a plate- shaped nozzle forming a jetting port at the lower end
is attached, a pusher guide is attached on the top of the pipe body, and a pusher having a
needle on the guide is attached slidably. A cylinder receiver is attached inside of the
pusher guide, and a screw of the mouth part of the gas cylinder is screwed up for the
receiver. Usually, a safety plate is plugged in the pusher to stop the moving.
[0004]
Then, the safety plate is removed when putting out a fire and hit the outside of the
pusher with a hand and pushes inwardly. Then a sealing plate is pierced by the needle
which moves toward the gas cylinder side. A filled gas which gushed is guided to inside
of a shaft from the inside of the pipe so as to jet the gas from a jetting port which is
positioned at the opposite side with the seal piercing position. (For example, see, Patent
Document 1)
[0005]
However, the above-mentioned fire extinguisher has following problems. An
operation of the safety plate may be confusing when putting out a sudden fire and small
grasping portion makes it difficult to pull out the safety plate. After the seal is pierced, the
jetting gas is guided to a space between the pipe body and the gas cylinder. Since the gas
is jetted from the jetting port which is positioned at the opposite side of the seal piercing
point, it attenuates pressure, speed and an effect in fire fighting, making initial fire fighting
incomplete. Moreover, the jetting gas remains inside of the pipe body after the seal
piercing so that some amount of gas remains unused in the pipe body.
[0006]
On the other hand, the conventional simple fire extinguishers are usually placed at
homes or offices, however, the demands to place them in vehicles is on the rise to cope with
a fire in vehicles nowadays .
In such cases, it is to be desired for a simple fire extinguisher used in vehicle to
combine other functions rationally in addition to the function of a fire extinguisher.
[0007]
Due to such demands recently, a car is equipped with an emergency escape device
so as to be able to escape from a car in case of an emergency, such as collision.
The escape equipment is formed in shape of bar and is provided with a cutter for
cutting a seat belt at one end. A hammer capable of breaking a windshield is provided at
the other end or the end and set it in a holder. It is installed around a driver's seat or an
appropriate place in a car to prepare for an emergency. (For example, see, patent
document 2 and 3)
[0008]
Of them, one emergency escape device is difficult to correspond to emergency use
because a cutter has to be extracted from its storage handle. Other emergency escape
device has following problem. The cutter is arranged with the edge fixed downwardly in a
generally V-shaped groove between a periphery of a body and a guide which protrudes
toward a head part of the body. When cutting a seat belt, a side of the seat belt connects
the edge of the cutter at generally right angles. Therefore, the seat belt cannot be cut
promptly and smoothly.
[0009]
[PATENT DOCUMENT 1] Japanese Patent Publication No. 2890097
[PATENT DOCUMENT 2] Utility Model Registration No. 3007514
[PATENT DOCUMENT 3] Japanese Patent Publication No. 2873001
[DISCLOSURE OF THE INVENTION]
[PROBLEM TO BE SOLVED]
[0010]
It is an object of the present invention to solve the mentioned problem and provide
a fire extinguisher gas ejector which is suitable for a fire extinguisher used in car. This
invention provides a fire extinguisher gas ejector which easily and quickly removes the
safety member and pierce the seal of the charged small gas cylinder and jet the gas properly
and attempt early fire extinction. This invention comprises the emergency escape
mechanism from vehicle, which cuts a seat belt promptly and breaks the windshield surely
such as a fire in vehicle and collision, and attempts a prompt escape from vehicle.
Moreover, it does not require a device exclusive to escape. Mechanisms for both fire
extinction and escaping are rationally constituted. The hammer can rationally and safely
be attached to the gas cylinder. The invention has the control valve which prevents a
waste of the extinguishing gas and jets the fire extinguishing gas to an origin of a fire surely
and accurately in fire fighting.
[MEANS FOR SOLVING PROBLEM]
[0011)
The present invention of claim 1 comprises a gas cylinder filled with extinguishing
gas, sealed with a seal and provided with a mouth part removably attached thereto;
a cylinder holder formed therein with a through hole and a nozzle hole;
a piercing pipe which is slidably mounted onto the cylinder holder, biased to upwardly
move, and provided at one end thereof with a tip part capable of piercing the seal;
a piercing member coupling with the other end of the piercing pipe;
a safety member capable of restraining an operation of the piercing pipe; and
a control valve movably provided in a communicating passage between the through hole
and the nozzle hole to be able to intermit the commutation passage by a move of the control
valve. The control valve stops emitting the extinguishing gas from the gas cylinder after
the seal is pierced. In addition, it prevents a waste of extinguishing gas and enables to jet
the gas to an origin of a fire accurately. Therefore, effective use of the extinguishing gas
and initial fire fighting can be achieved. Moreover, the structure is simplified by reducing
the number of the parts so that small and lightweight fire extinguisher gas ejector can be
produced easily and at low cost.
[0012]
In the present invention of claim 2, the through hole has a small-caliber valve hole
and the valve hole is slidably provided with the control valve. The gas cylinder is
structured rationally to attempt to reduce a number of parts and to make a structure of the
control valve simpler. Thus, it is produced easily and at a low cost.
In the present invention of claim 3, the control valve has a periphery on which at
least two O-rings are mounted apart from each other, the valve hole is air-tightened with
one of the O-rings, before or when the seal is pierced by the piercing pipe, and either one of
the O-rings is positioned at an inner opening of the nozzle hole to be able to close the nozzle
hole, thereby making the constitution of the control valve simpler. The extinguishing gas
which jets from the nozzle hole before/ when piercing the seal is prevented and a waste of
the extinguishing gas is stopped.
In the present invention of claim 4, the piercing pipe is returned to an original
position under pressure of the extinguishing gas jetted from the gas cylinder, and one of the
O-ring is positioned at the inner opening of the nozzle hole to be able to close the nozzle
hole. Then, after the seal is pierced, the extinguishing gas which unconsciously jet can be
stopped and a waste of the extinguishing gas is prevented.
[0013]
In the present invention of claim 5, the extinguishing gas jetted from the gas
cylinder is able to stagnate in the through hole after the seal is pierced, thereby preventing a
waste of the extinguishing gas.
In the present invention of claim 6, the closed nozzle hole is unclosed with one of
the O-rings by an operation of the piercing pipe after the seal is pierced, thereby allowing
the extinguishing gas to be jetted from the nozzle hole. After the seal is pierced, when the
piercing pipe is pressed with the piercing member, the extinguishing gas is jetted.
In the present invention of claim 7, the piercing pipe has a lower part exhibiting a
less descending displacement after the seal is pierced than when the seal is pierced. When
the piercing member is operated after the piercing, the tip part of the piercing pipe is
inserted to the opening of the sealing plate to prevent a situation which interferes a smooth
jetting of the extinguishing gas.
In the present invention of claim 8, the safety member is arranged just below the
piercing member to be able to be pulled out laterally, and the safety member which is
formed integrally with a tab is arranged on the piercing member to be able to be pulled up.
The safety member can be removed immediately, simply, and smoothly and it can be cope
with an emergency use.
In the present invention of claim 9, the safety member is formed in a shape of a
plate or ring. When the shape is a plate, stability is obtained when placing the piercing
member. When the shape is a ring, the safety member is smaller and lighter and the safety
member can be pulled out more quickly.
[0014]
The present invention of claim 10 comprises a gas cylinder filled with
extinguishing gas, sealed with a seal and provided with an exposed bottom and a mouth part
removably attached thereto;
a cylinder holder formed therein with a through hole and a nozzle hole;
a piercing pipe which is slidably mounted onto the cylinder holder, biased upwardly to
move, and provided at one end thereof with a tip part capable of piercing the seal;
a piercing member coupling with the other end of the piercing pipe;
a safety member capable of restraining an operation of the piercing pipe;
and a hammer having a pointed part and attached to the exposed bottom of the cylinder.
In case of an emergency such as fire on vehicle or collision, a windshield can be broken by
the hammer and attempt to escape from a vehicle quickly. Further, by installing a
mechanism of escaping with the fire extinguisher in vehicle, a device which is exclusive to
escape becomes unnecessary. Mechanisms of both fire extinguishing and escaping can be
attained rationally.
[0015]
The present invention of claim 11 comprises the hammer attached to the gas
cylinder which is filled with the extinguishing gas. Without charging the extinguishing
gas to the gas cylinder after the hammer is attached, conventional facilities or operations for
filling the gas are utilized and improvement of productivity and efficiency is realized.
The present invention of claim 12 comprises the hammer having a retaining ring
attached to the exposed bottom of the gas cylinder and a hammer shaft that has a neck
hooked to an inside of the retaining ring and the pointed part protruded outside the retaining
ring. The hammer is structured with two members and the plating for the gas cylinder and
the retaining ring is carried out after attaching the retaining ring. When plating the gas
cylinder after attaching the hammer shaft, damage to the surface of the gas cylinder by the
pointed part of the hammer shaft is prevented, and the hammer is attached rationally.
In the present invention of claim 13, after the retaining ring is attached to the gas
cylinder, the retaining ring and the gas cylinder are plated so that the plating for the
retaining ring and the gas cylinder is performed safely and rationally.
In the present invention of claim 14, the neck of the hammer shaft has an elastic
stopper mounted thereon, and the stopper is arranged to engage with an inner opening of the
retaining ring so that the hammer shaft is attached to the retaining ring securely.
[0016]
The present invention of claim 15 comprises an outer shell provided outside the
cylinder holder, the seat belt introduction groove provided in a periphery of the outer shell
and capable of inserting a seat belt therein, and a cutter arranged to face the seat belt
introduction groove. In case of an emergency such as a fire in vehicle and collision, the
seat belt can be cut smoothly, enabling prompt escape from a vehicle. Further, by
installing a mechanism of cutting a seat belt to the fire extinguisher installed on vehicle, a
device exclusive to escape becomes unnecessary. The mechanism of both fire
extinguishing and escaping can be structured rationally.
In the present invention of claim 16, the seat belt introduction groove is arranged
on the opposite side of the nozzle hole so that the extinguishing gas is jetted from the nozzle
hole surely and introduction and cutting of the seat belt is performed surely.
In the present invention of claim 17, the cutter is provided with a seat belt releasing
part at inner side position, which moves the cut seat belt backward smoothly and speedily.
Thus, the cutting can be carried out smoothly by pushing and spreading the cut part.
[0017]
In the present invention of claim 18, the seat belt releasing part is integrally formed
with the outer shell. Therefore, the seat belt releasing part is produced easily and
homogeneously.
In the present invention of claim 19, the seat belt releasing part has a substantially
inverted triangular cross-section taken along a direction of introducing the seat belt in the
seat belt introduction groove so that the cutting can be carried out smoothly by spreading
and moving the cut part of the seat belt.
In the present invention of claim 20, the seat belt releasing part is provided in a
vicinity of a rear of the cutter and has a distal end insertable in a cut part of the seat belt, and
releasing surfaces formed on opposite sides thereof to continue with the distal end for
spreading and moving the cut part of the seat belt. Thus, spreading and smooth moving of
the cut part are promoted.
In the present invention of claim 21, the outer shell is provided on a lower
periphery thereof with curved concave parts disposed apart from an upper periphery of the
gas cylinder. Owing to this arrangement, the fire extinguisher is easily grasped,
conductive heat to the curved concave parts is prevented via spaces, and effect of low heat
when the extinguishing gas is jetted can be avoided.
[0018]
In the present invention of claim 22, the curved concaved parts are disposed on
front and back sides of the lower periphery of the outer shell and have a plurality of
concavo-convex parts for easy and strong grasping of the fire extinguisher.
The present invention of claim 23 comprises a piercing device loaded with the gas
cylinder, a storing case accommodated in a door pocket of a car for storing the piercing
device, a strap having opposite ends thereof attached to a periphery of the storing case, a
middle part thereof provided with a stopper that is detachably attached to an engaging part
buried in an outer surface of the door pocket, and a leading end thereof stuck out to face a
driver side. Owing to this arrangement, the storing case for the piercing member is stably
accommodated in a door pocket. When in use, the leading end is grasped and pulled, and
then the storing case is removed easily for an immediate use.
The present invention of claim 24 comprises a piercing device loaded with the gas
cylinder and a protective case installed at an appropriate place in a car for storing the
piercing device and formed with upper and lower opening facing in opposite directions,
wherein the seat belt introduction groove and piercing member emerge at the upper opening,
whereas a periphery of the gas cylinder emerges at the lower opening. Upper and lower
opening loosen close contact with the piercing device so that the piercing device can be
taken out immediately. A seat belt can be cut with a state in which the piercing device is
stored in a protective case. Moreover, an open hole is formed at the corresponding
position with the nozzle hole which is located the opposite side of the upper opening so that
the jetting of the extinguishing gas can be realized.
(EFFECT OF THE INVENTION]
[0019]
In the present invention of claim 1, the communicating passage between the
through hole and the nozzle hole is movably provided with the control valve and the move
of the control valve is able to intermit the commutation passage. The control valve stops
emitting the extinguishing gas from the gas cylinder after the seal is pierced. In addition, it
prevents a waste of extinguishing gas and enables to jet the extinguishing gas to an origin of
a fire. Therefore, effective use of the extinguishing gas and initial fire fighting can be
achieved. Moreover, the structure is simplified by reducing the number of the parts. It is
small and lightweight and it can be produced easily and at low cost.
In the present invention of claim 2, the through hole has a small-caliber valve hole
and the valve hole is slidably provided with the control valve. The gas cylinder is
constituted rationally so that the number of parts is reduced, making the constitution of the
control valve simpler. Thus, it is produced easily and at a low cost.
In the present invention of claim 3, the control valve has a periphery on which at
least two O-rings are mounted apart from each other, the valve hole is air-tightened with
one of the O-rings, before or when the seal is pierced by the piercing pipe, either one of the
O-rings is positioned at an inner opening of the nozzle hole to be able to close the nozzle^
hole, thereby making the constitution of the control valve simpler. The extinguishing gas
which jets from the nozzle hole before/ when piercing the seal is prevented and a waste of
the extinguishing gas is also prevented.
[0020]
In the present invention of claim 4, the piercing pipe is returned to an original
position under pressure of the extinguishing gas jetted from the gas cylinder, and one of the
O-ring is positioned at the inner opening of the nozzle hole to be able to close the nozzle
hole. Accordingly, after the seal is pierced, the extinguishing gas which unconsciously jets
can be stopped and a waste of the extinguishing gas is also prevented.
In the present invention of claim 5, the extinguishing gas jetted from the gas
cylinder is able to be stagnated in the through hole after the seal is pierced, thereby
preventing a waste of the extinguishing gas.
In the present invention of claim 6, the closed nozzle hole is unclosed with one of
the O-rings by the operation of the piercing pipe after the seal is pierced, thereby allowing
the extinguishing gas to be jetted from the nozzle hole. After the seal is pierced, the
piercing pipe is pressed down with the piercing member and the extinguishing gas is
gushed.
[0021]
In the present invention of claim 7, the piercing pipe has a lower part exhibiting a
less descending displacement after the seal is pierced than when the seal is pierced. When
the piercing member is operated after the piercing, the tip part of the piercing pipe is
inserted to the opening of the sealing plate to prevent a situation which interferes a smooth
jetting of the extinguishing gas.
In the present invention of claim 8, the safety member is arranged just below the
piercing member to be able to be pulled out laterally, and the tab which is integrally formed
with the safety member is able to be pulled up. Owing to this arrangement, the safety
member can be removed immediately, simply, and smoothly to be able to cope with an
emergency use.
In the present invention of claim 9, the safety member is formed in a shape of a
plate or ring. When the shape is a plate, stability is obtained when placing the piercing
member. When the shape is a ring, the safety member is smaller and lighter. In addition,
the safety member can be pulled out more quickly.
[0022]
In the present invention of claim 10, a hammer having a pointed part is attached to
the exposed bottom of the cylinder. In case of an emergency such as Are in vehicle or
collision, a windshield can be broken by the hammer and attempt escape from a vehicle.
In case of an emergency such as fire on vehicle or collision, a windshield can be broken by
the hammer and attempt to escape from a vehicle quickly. Further, by installing a
mechanism of escaping with the fire extinguisher in vehicle, a device exclusive to escape
becomes unnecessary. Mechanisms for both fire extinguishing and escaping are
constituted rationally.
The present invention of claim 11 comprises the hammer attached to the gas
cylinder after filling with the extinguishing gas. Without charging the extinguishing gas to
the gas cylinder after the hammer is attached, conventional facilities or operations for filling
the gas are utilized and improvement of productivity and efficiency is realized.
[0023]
The present invention of claim 12 comprises the hammer having a retaining ring
attached to the exposed bottom of the gas cylinder, a hammer shaft that has a neck hooked
to an inside of the retaining ring, and the pointed part protruded outside the retaining ring.
The hammer is made structured with two members and plating for gas cylinder and the
retaining ring is carried out after attachment of the retaining ring. When plating the gas
cylinder after attaching the hammer shaft, damage to the surface of the gas cylinder is
prevented and the hammer is attached rationally.
In the present invention of claim 13, after the retaining ring is attached to the gas
cylinder, the retaining ring and the gas cylinder are plated so that the plating for the
retaining ring and the gas cylinder is performed safely and rationally.
[0024]
In the present invention of claim 14, the neck of the hammer shaft has an elastic
stopper mounted thereon, and the stopper is arranged to engage with an inner opening of the
retaining ring so that the hammer shaft is attached to the retaining ring securely.
The present invention of claim 15 comprises an outer shell provided outside the
cylinder holder, a seat belt introduction groove provided in a periphery of the outer shell
and capable of inserting a seat belt therein, and a cutter arranged to face the seat belt
introduction groove. In case of an emergency such as fire in vehicle or collision, a seat
belt can be cut smoothly and attempt to escape from a vehicle quickly. Further, by
installing a mechanism of cutting the seat belt with the fire extinguisher in vehicle, an
exclusive escaping device becomes unnecessary. Mechanisms of both fire extinguishing
and escaping can be attained rationally.
[0025]
In the present invention of claim 16, the seat belt introduction groove is arranged
on opposite side of the nozzle hole so that the extinguishing gas is jetted from the nozzle
hole surely. Further, introduction and cutting of the seat belt is performed surely.
In the present invention of claim 17, the cutter is provided therein with a seat belt
releasing part, which backwardly moves the cut seat belt smoothly and speedily so that the
cutting can be carried out smoothly by pushing and spreading the cut part.
In the present invention of claim 18, the seat belt releasing part is integrally formed
with the outer shell. Therefore, the seat belt releasing part is produced easily and
homogeneously.
In the present invention of claim 19, the seat belt releasing part has a substantially
inverted triangular cross-section taken along a direction of introducing the seat belt in the
seat belt introduction groove so that the cutting can be carried out smoothly by spreading
and moving the cut part of the seat belt.
[0026]
In the present invention of claim 20, the seat belt releasing part is provided in a
vicinity of a rear of the cutter and has a distal end insertable in a cut part of the seat belt, and
releasing surfaces formed on opposite sides thereof to continue with the distal end for
spreading and moving the cut part of the seat belt. Thus, spreading and smooth moving of
the cut part are promoted.
In the present invention of claim 21, the outer shell is provided on a lower
periphery thereof with curved concave parts disposed apart from an upper periphery of the
gas cylinder. Owing to this arrangement, the fire extinguisher is easily grasped,
conductive heat to the curved concave parts is prevented via spaces, and effects of low heat
when the extinguishing gas is jetted can be avoided.
[0027]
In the present invention of claim 22, the curved concave parts are disposed on front
and back sides of the lower periphery of the outer shell and have a plurality of
concavo-convex parts for easy and strong grasping of the fire extinguisher.
The present invention of claim 23 comprises the piercing device loaded with the
gas cylinder, a storing case accommodated in a door pocket of a car for storing the piercing
device, a strap having opposite ends thereof attached to a periphery of the storing case, a
middle part thereof provided with a stopper that is detachably attached to an engaging part
buried in an outer surface of the door pocket, and a leading end thereof stuck out to face a
driver side. Owing to this arrangement, the storing case for the piercing member is stably
accommodated in a door pocket. When in use, the leading end is grasped and pulled, and
then the storing case is removed easily for an immediate use.
[0028]
The present invention of claim 24 comprises a piercing device loaded with the gas
cylinder and a protective case installed at an appropriate place in a car for storing the
piercing device and formed with upper and lower opening facing in opposite directions,
wherein the seat belt introduction groove and piercing member emerge at the upper opening,
whereas a periphery of the gas cylinder emerges at the lower opening. Upper and lower
opening loosen close contact with the piercing device so that the piercing device can be
taken out immediately. A seat belt can be cut with a state stored in a protective case.
Moreover, an open hole is formed at the corresponding position with the nozzle hole which
is located the opposite side of the upper opening so that the jetting of the extinguishing gas
can be realized.
[BRIEF DESCRIPTION OF DRAWING]
[0029]
[Fig. 1 ] is a perspective view of a first embodiment of the present invention showing
the piercing device attached to the gas cylinder.
[Fig. 2] is a front view of Fig. 1 showing a state in which the seat belt is cut.
[Fig. 3] is a left side view of Fig. 1.
[Fig. 4] is a sectional view taken along the line A-A of Fig. 3 showing a state of pulling
up the tab.
[Fig. 5] is a sectional view taken along the line B-B of Fig. 3.
[0030]
[Fig. 6] is an exploded perspective view showing parts of a first embodiment.
[Fig. 7] is an enlarged longitudinal-sectional view of the cylinder holder which is
applied to a first embodiment.
[Fig. 8] is an enlarged longitudinal-sectional view of the piercing pipe which is applied to
a first embodiment.
[Fig. 9] is an enlarged sectional view showing the state of installing a hammer which is
applied to a first embodiment.
[Fig. 10] is a perspective view showing the reversed hammer which is applied to a first
embodiment.
[0031]
[Fig. 11 ] shows a state in which a windshield of a car is broken from inside by the
hammer which is applied to a first embodiment.
[Fig. 12] is a sectional view of a first embodiment showing a state in which after the
safety member is pulled out.
[Fig. 13] is a sectional view of a first embodiment showing that the piercing member is
pushed down for the seal piercing after the safety member is pulled out.
[0032]
[Fig. 14] is a sectional view of a first embodiment showing that the extinguishing gas is
jetted outside by pushing down the piercing member after the seal is pierced.
[Fig. 15] shows a second embodiment of the present invention and is a sectional view of
other embodiment of the hammer. In (a), the hammer is attached by gluing, (b) shows a
state in which the hammer is insert molded with the cylinder cover and the cover is attached
to the gas cylinder.
[0033]
[Fig. 16] is a front view of a third embodiment showing that the other embodiments of
the seat belt introduction groove and the hammer.
[Fig. 17] is an enlarged sectional view of a third embodiment showing a state before
piercing the seal and a situation in which the seat belt introduction groove and the cutter is
attached.
[Fig. 18] is an enlarged sectional view of the third embodiment showing a state in which
the seal is pierced.
[Fig. 19) is a sectional view of the Fig. 16 taken along the line of C-C showing enlarged
seat belt releasing part applied to a third embodiment.
[0034]
[Fig. 20) is an enlarged illustration of an operation of cutting the seat belt by the seat belt
releasing part.
[Fig. 21) is an enlarged sectional view of a main part of the hammer applied to a third
embodiment.
[Fig. 22) is a perspective view showing a state in which the storing case applied to a third
embodiment is installed in a car.
[Fig. 23) is a perspective view showing the protective case applied to a fourth
embodiment of the present invention. It shows the piercing device and the protective case
before the piercing device is stored.
[Fig. 24) is a perspective view of the protective case applied to a fourth embodiment
showing a state in which the piercing device is stored.
[Fig. 25) is a right side view of Fig 24.
[0035]
[Fig. 26) is a sectional view of the fire extinguisher gas ejector applied to a fifth
embodiment showing a state in which before the seal is pierced.
[Fig. 27) is a sectional view of a fifth embodiment showing a state in which the seal is
pierced.
[Fig. 28) shows a state in which the extinguishing gas is jetted from the nozzle hole by
operating the piercing member after the seal piercing of a fifth embodiment.
[EXPLANATIONS OF NUMERALS]
[0036]
1 gas cylinder
2 piercing device
5 cylinder holder (inner pipe)
6 outer shell (outer pipe)
8 through hole
10 piecing pipe
[0037]
14 nozzle hole
19a tip part
22 piercing member (piercing knob)
24 tab
27 safety member (safety plate)
35 seat belt
[0038]
36 sea belt introduction groove
37 cutter
37 edge of the cutter
42,43 curved concaved parts
44 concaved part
45 convex part
47 hammer
[0039]
48, 72 pointed part
52 seat belt releasing part
55 seat belt releasing surface
66 retaining ring
67 hammer shaft
71 neck part (annular groove)
75 storing case
[0040]
79 stopper
80 strap
84 protective case
85 upper opening
86 lower opening
[0041]
92 seal piercing member (lever)
96 valve hole
98 control valve
99,100 O-ring
[BEST MODE FOR CARRYING OUT THE INVENTION]
[0042]
The following is description of illustrated embodiments that this invention is
applied to a fire extinguisher gas ejector for in-car use which uses a cartridge gas cylinder.
In Fig. 1 to 14, reference numeral 1 represents a known and small gas cylinder which is
charged with carbon dioxide as an extinguishing gas. A mouth part of the gas cylinder 1 is
provided with a piercing device 2.
The gas cylinder 1 of the embodiment requires about 40 mm in external diameter,
about 130 mm in length, and about 90 ml in tare weight and is charged with carbon dioxide
of about 4MPa therein. The weight after charging is about 300g. After charging the gas,
the mouth part is sealed with the sealing plate 3 and a hammer, which is described later, is
attached to a bottom.
[0043]
A thread part 4 is formed on a periphery of the mouth part for the gas cylinder 1
and is screwed to the piercing device 2 to be fixed.
The seal piercing device 2 is formed in a shape of an irregular tubular with strong
and light synthetic resin. The seal piercing device 2 is composed of double pipes. One is
a cylinder holder 5 which has a lower end capable of screwing the thread part 4. The other
is an outer pipe 6, outer shell, which has a hollow tubular shape and is arranged outside of
the cylinder holder 5.
[0044]
Of them, the cylinder holder 5 is formed in shape of virtually cylindrical with
aluminum and has a screw hole 7 at the lower end capable of screwing the thread part 4.
The cylinder holder 5 has a through hole 8 which communicates with the screw hole 7 and a
hole 9 which is a little smaller than the through hole 8 therein to communicate each other in
the coaxial direction. The seal piercing pipe 10, which will be described later, is inserted
slidably the through hole 8 and the hole 9.
In the illustration, reference numerals 11 and 12 represent O-rings. The O-ring 11
is inserted in a step of dividing part between the through hole 8 and the hole 9. The O-ring
12 is inserted in a annular groove between the screw hole 7 and the through hole 8.
[0045]
The middle to upper periphery of the cylinder holder 5 has a jetting port 13 which
constitutes a jetting flow path together with the through hole 8 and a nozzle hole, which will
be described later. A nozzle hole 14. which communicates with the through hole 8. is
formed in the inner part of the jetting port 13.
A pair of positioning pins 15 is protruded from the outer periphery of the cylinder
holder 5 to the diameter direction and the pins 15 are fitted to the pin holes that are formed
on inner surfaces of outer pipe pieces, which will be described later. Outer pipe pieces 6a,
6b are connected to predetermined positions to prevent dislocation of guide holes 31a, 31b,
connecting surfaces 38a, 38b, and recessed grooves 38a, 38b.
In embodiment, a pair of recess holes 16 are formed at the positions of 90 degree
from the jetting port 13 on the periphery of the cylinder holder 5. The positioning pins 15
are pressed in the recess holes 16 and the ends are protruded from the periphery.
[0046]
The piercing pipe 10 is formed in a shape of bar by processing aluminum bar.
The upper half of the piercing pipe 10 is slidably inserted to the hole 9 and a large-diameter
part 10a is formed on the middle part. The large-diameter part 10a is slidably inserted to
the through hole 8. In drawings, reference numeral 17 is an annular groove formed on the
large-diameter part 10a. Reference numeral 18, which is an O-ring, is attached to the
annular groove 17.
[0047)
A needle tube 19, which is made of steel tube, is fixed to the lower end of the seal
piercing pipe 10 and the end of 19 is diagonally cut permitting the tip part 19a to pierce the
sealing plate 3.
In this case, without providing the seal piercing pipe 10 and the needle tube 19
separately, these parts can be integrally constituted. Then, a number of parts are reduced
and the structure becomes simpler. Accordingly, the piercing pipe 10 only has to be
equipped with the tip part 19a at one end.
In drawings, reference numeral 20 represents a spring which is inserted between
the end of the piercing pipe 10 and the sealing plate 3, and biased the piercing pipe 10 to
move upwardly with the resilience.
[0048]
The piercing pipe 10 has a contracted square shank 21 at upper end. The square
shank 21 is fitted to a square hole 22a which is formed on the bottom surface of a seal
piercing knob 22, which is the seal piercing member, and they are fixed together by using
adhesive. In this case, instead of using adhesive on the square shank 21 and the square
hole 22a, it is possible to fix them by screwing from the top of the seal piercing knob 22 or
using a retaining ring.
[0049]
The seal piercing knob 22 is formed in a shape of virtually elliptical plate with
synthetic resins, on which the top surface is gently recessed so as to be able to put a finger.
A chevron-shaped rib 23 is projected on the front peripheral edge and a knob of a tab 24 is
arranged overlapped on the base side of the rib 23.
The tab 24 is formed by bending the synthetic resin rod, which has the same quality
as of the piercing device 2, into a shape of virtually triangular, and the knob 24a is formed
by bending the apex diagonally upward.
Then, the knob 24a is disposed on the middle part of top surface of the seal
piercing knob 22 to be able to put the finger 25 thereon. The knob 24a can be pulled up
with a connecting part 26, which protruded from back end, as a fulcrum.
[0050]
The connecting part 26 is formed diagonally downward, with the lower end
connected to the rear end of the safety plate 27.
The safety plate 27 is formed with the same member as the tab 24 and is shaped in
an elliptical plate which is little larger than the tab 24.
[0051]
The notch 28 is formed in the front-back direction on the half front of a safety plate
27, and a notch 28 is engaged with upper part of the seal piercing pipe 10.
Specifically, the safety plate 27 is usually inserted between the seal piercing knob
22 and the upper surface of the outer pipe 6. The piercing pipe 10 is engaged with the
notch 28 to prevent pulling out the safety plate 27 and pressing the seal piercing tab 24.
When the tab 24 is raised and pulled up, the safety plate 27 can be pulled backwardly along
the notch 28.
[0052]
On the other hand, the outer pipe 6 is constituted with two pieces that are split in
the axial direction along a jetting port guide, which will be described later, and the cylinder
holder 5 is stored therein. Connecting surfaces 29a, 29b, are integrally attached as one
with heat welding. In such a case, the outer pipe pieces 6a, 6b can be joined together by
screwing or using adhesive instead of heat welding.
[0053]
Irregular-shaped engaging holes 30a, 30b capable of storing the cylinder holder 5
are symmetrically formed on the connecting surfaces 29a, 29b of the outer pipe pieces 6a,
6b. One side of the connecting surfaces 29a, 29b have guide holes 31a, 32b that constitute
a funnel-like jetting port guide 31.
In illustrations, reference numerals 32a, 32b represent pin holes that are formed on
the inner surfaces of the engaging holes 30a, 30b permitting the positioning pin 15, 15 to be
inserted.
[0054]
A chevron-shaped protrusion 33 is formed in the axial direction on the back
periphery of the outer pipe 6. and a seat belt guide 34 is protruded outside of the protrusion
33 obliquely downward from the upper end of the outer pipe 6, virtually parallel with the
protrusion 33.
A seat belt introduction groove 36 capable of inserting a seat belt 35 is formed
between the seat belt guide 34 and the protrusion 33, facing the inner surface of the
introduction groove 36 each other.
A cutter 37 is arranged at upper part of the introduction groove 36. An edge of
the cutter 37a is vertically arranged, and acutely arranged with respect to the direction of
introducing the seat belt 35. The seat belt 35 can be cut at sharp angle with respect to a
direction of the thickness of the seat belt 35.
[0055]
The seat belt guide 34 is constituted by joining guide pieces 34a, 34b that extend
from outer pipe pieces 6a, 6b. Concaved grooves 39a, 39b, that are virtually parallelogram
shape, are formed in axial direction over the joining surfaces 38a, 38b and the connecting
surfaces of 29a, 29b of the outer pipe pieces 6a, 6b. The cutter 37 is stored in the
concaved groove 39a, 39b.
In illustrations, a pin 40 protrudes from the recessed grooves 39a, 39b are inserted
in a fitting hole 41 formed on the cutter 37 to prevent displacement.
[0056]
The outer pipe 6 has lower periphery on which the front and back sides are
concavely curved, and the cross sectional view is an elliptical shape. Curved concaved
parts 42, 43 respectively have a concave part 44 and a convex part 45 that form curved
patterns for to make friction so that the part can easily or firmly grasped.
The outer pipe 6 has skirt-like peripheries on lower part and the skirt-portions are
arranged apart at the outside of the periphery of the shoulder part. These spaces block heat
conduction which lowers a temperature of the surface of the gas cylinder 1 when the
extinguishing gas is jetted. Thus, the temperature drop of the curved concaved parts 42, 43
is inhibited.
[0057]
The gas cylinder 1 has a sheet 46 made of heat insulating film on the middle
periphery with printed pictures thereon that show how to use of the fire extinguisher gas
ejector. The heat insulation action is obtained when putting out a fire.
In embodiment, the film made of synthetic resin is used for the sheet 46, the film is
attached by shrinking with predetermined temperature on the surface of the gas cylinder 1
which is filled with carbon dioxide.
[0058]
The hammer 47 having the pointed part is attached to the exposed bottom of the
gas cylinder 1, and a hammer 47 is molded by sintering to a predetermined hardness with a
prescribed powder metal.
The hammer 47 is shaped in a thin, concavely or convexly curved plate capable of
contacting the bottom of the gas cylinder 1. A pointed part 48, which is a cone shape, is
protruded from the center of the convex surface side.
[0059]
After molding to the predetermined shape with sintering, the hammer 47 of the
embodiment is prepared to high hardness by quenching with the predetermined temperature.
The prepared hammer 47 is attached to the bottom of the gas cylinder 1, which is filled with
carbon dioxide, by spot welding or welding.
Accordingly, the hammer 47 can be attached to the gas cylinder 1 smoothly and
safely without changing a conventional process or filling facility of carbon dioxide for the
gas cylinder 1.
[0060]
In this case, the hammer 47 can also be attached by bonding or brazing instead of
spot welding. A thick steel plate is press molded to said shape instead of molding the
hammer 47 with sintering, and the hammer can also be attached by spot welding, welding,
bonding, or soldering.
[0061]
In illustration, reference numeral 49 shows the extinguishing gas jetting for outside
from the jetting port guide 31 after the seal is pierced. Reference numeral 50 shows a
windshield of a car.
[0062]
The fire extinguisher gas ejector, which is constituted by the way above, is
constructed by attaching the piercing device 2 on top of the small gas cylinder. The small
gas cylinder 1 is constituted by attaching the hammer 47 for an emergency escape. The
piercing device 2 is constituted with the piercing pipe 10, the piercing knob 22, the safety
plate 27 which is integrally formed with the tab 24, and the cutter 37 for cutting a seat belt
for escaping in case of an emergency.
[0063]
When making a fire extinguisher gas ejector, the hammer 47 is molded by sintering.
After the sintering, the hammer 47 is prepared for predetermined hardness and is attached to
the bottom of the small gas cylinder 1 by spot welding.
The piercing device 2 is produced by combining following parts. The resin
molded outer pipes 6a, 6b, the piercing knob 22 and the tab 24 that are respectively resin
molded, and the cylinder holder 5, the piercing pipe 10, and the cutter 37 that are metal
processed.
[0064]
Then, when making the hammer 47 firstly, prescribed powder metal is molded by
sintering and shape it into concavely or convexly curved thin plate. Then, the conically
shaped pointed part 48 is protruded on the center of the convex surface side.
This state is shown in the Fig. 10. After the molding, the pointed part 48 is
prepared for high hardness by quenching with a predetermined temperature.
[0065]
When attaching the hammer 47, which is produced by the way above, to the gas
cylinder 1, the hammer 47 is spot welded to the gas cylinder 1 which is filled with the
extinguishing gas, carbon dioxide, and sealed with the sealing plate 3.
The spot welding is carried out by connecting the concavely curved surface of the
hammer 47 with the bottom of the gas cylinder 1, energizing, and welding. The state is
shown in the Fig. 9.
[0066]
In this case, the spot welding temporarily causes high temperature. However, the
filled carbon dioxide has no risk for an ignition, explosion, or a sudden expansion. After
the spot welding, the current state is promptly recovered so that the operation of spot
welding is performed safely.
Moreover, there is no risk for a deformation due to thermal stress of the spot
welding or a crack due to a distortion. Therefore, the strength of the gas cylinder 1 is
remained, and the state of the filled carbon dioxide remains the same.
The sealing plate 3 is also sealed by spot welding after filling the carbon dioxide.
This suggests that it is safe to carry out a spot welding to the gas cylinder 1.
[0067]
Moreover, the spot welding to the gas cylinder 1 is carried out after the carbon
dioxide is filled. Therefore, filling operation of the carbon dioxide can be carried out in a
conventional manner by using filling facilities that already exist. It will not reduce the
productivity and the efficiency.
Accordingly, decrease of safety or productivity can be avoided unlike a case in
which the spot welding is carried out before filling carbon dioxide, which affects the use of
the conventional facilities of filling by the spot welded hammer 47 or causes decrease of
efficiency and productivity due to changes of operations.
[0068]
In this case, it is also possible to attach the hammer 47 to the filled gas cylinder 1
by bonding or brazing instead of spot welding.
Of them, bonding does not require any special facility for attachment. Little
consideration needs to be given to effects of temperature of spot welding and thermal stress
on the filled gas.
Moreover, brazing requires lower temperature compared to spot welding. It
reduces effects of temperature of brazing on filled gas and thermal stress. At the same
time, similar advantages and strength can be obtained as spot welding.
[0069]
Meanwhile, a thick steel plate is press molded into the above-mentioned shape and
it can also be attached by spot welding, bonding or brazing instead of molding the hammer
47 with sintering.
The way above does not require an expensive facility for sintering and molding and
simple and low cost production is possible by the press molding.
[0070]
After the hammer 47 is attached, the sheet 46 is attached on the middle periphery
of the gas cylinder 1.
In the embodiment, a film made of synthetic resin is used for the sheet 46 with
printed pictures that show usage of the fire extinguisher gas ejector. Then, the film is cut
to a predetermined size and formed in shape of roll. The periphery of the gas cylinder 1 is
covered with the sheet, and then, shift it into a heat furnace with predetermined temperature
for heat contraction. The shrunk film is attached on the middle periphery of the gas
cylinder 1.
[0071]
Next, when producing the piercing device 2, the outer pipe pieces 6a, 6b, the
piercing knob 22, and the safety plate 27 are separately resin molded, the cylinder holder 5
and the piercing pipe 10 are machine processed with different diameter aluminum bars, and
the cutter 37 is produced by press molding the steel plate.
Of them, outer pipe pieces 6a, 6b are formed by cutting axially the outer pipe 6 into
half at the position of the jetting port guide 31. And the center of the connecting surfaces
29a, 29b of the cylinder body side have the engaging holes 30a, 30b and the engaging holes
30a, 30b have the pin holes 32a, 32b on the middle.
[0072]
Furthermore, one sides of the connecting surface 29a, 29b have the guide holes 31a,
31b that constitute the jetting port guide 31. The concaved grooves 39a, 39b that store the
cutter 37 are formed on the other sides.
On the other hand, the guide pieces 34a, 34b are integrally protruded from the
outside of the cylindrical body side. A part of the concaved grooves 39a, 39b is formed on
the connecting surfaces 38a, 38b.
Moreover, the curved concaved parts 42, 43 are disposed on front and back
peripheries of the outer pipe pieces 6a, 6b. The curved concaved part 42 of front side has a
plurality of the concaved parts 44, the concaved part 43 of back side has a plurality of the
convex parts 45.
[0073]
The seal piercing knob 22 is shaped in an elliptical plate which has longer major
axis in front and back and the top surface is gently concaved and curved. The
chevron-shaped rib 23 is protruded from the front side and square hole 22a is disposed on
the lower surface.
The safety plate 27 and the tab 24 are integrally formed. Of them, the safety plate
27 and the seal piercing knob 22 are shaped in virtually the same elliptical plate, and the
notch 28 is disposed on the front side.
The tab 24 is formed in a shape of regular triangular by using a flat bar and the
knob 24a is formed by turning up the front obliquely upward. The rear of the knob 24a is
connected to the back of the safety plate 27 by the connecting part 26 which protruded
obliquely downward.
[0074]
The cylinder holder 5 is formed cylindrical in which the through hole 8 and the
hole 9 are formed therein. The holes are smooth and have different diameters. The lower
part of the cylinder 5 has the screw hole 7, and the jetting port guide 13 and the nozzle hole
14 that are disposed on the middle circumference are communicating with the through hole
8.
A pair of recessed holes 16 is disposed diametrically on the surface of the
circumference of the cylinder holder 5. The pins 15, 15 are pressed into the recess hole 16.
[0075]
The seal piercing pipe 10 is formed in a bar shape, the large-diameter part 10a and
the annular groove 17 are disposed on the middle, and the square shaft 21 are formed on the
top end. One end of a steel pipe is obliquely cut to make the needle tube 19, one end of
the tube 19 is pressed into lower end of the piercing pipe 10, and the tip part 19a is
protruded outside.
In this case, the needle tube 19 can be omitted if the piercing pipe 10 is integrally
provided with the tip part 19a.
Moreover, the cutter 37 is produced by press molding a steel plate, and the fitting
hole 41 is disposed on the middle, and the edge of the cutter 37a is disposed on the side
edge.
[0076]
After the parts above are produced, the piercing device 2 is produced by
assembling them.
For assembly, the engaging hole 30a of the outer pipe piece 6a is stored in the
cylinder holder 5, the positioning pin 15 is inserted to the recess hole 32a, the cutter 37 is
stored in the recessed groove 39a, and the fitting hole 41 is inserted to the pin 40.
Then, the connecting surface 29a of the other outer pipe piece 6b is joined with the
connecting surface 29a, the positioning pin 15 is inserted into the recess hole 32b of the
engaging hole 30b, and after the connecting surfaces 29a, 29b are attached, the outer pipe
pieces 6a, 6b are connected together.
[0077]
When heat welding is used for the connection, for example, an electrical heat plate
(not shown) is inserted between the connecting surfaces 29a, 29b. Then, applying current
to the electrical heat plate and heated to a melting temperature. After the connecting
surfaces 29a, 29b are melted, the electrical heat plate is pulled out, connecting surfaces 29a,
29b are welded, and the cutter 37 and the cylinder holder 5 are integrally buried therein.
In this case, when adhesion is used for connection, adhesive material is applied to
the connecting surfaces 29a, 29b. When screwing is used for the connection, screw holes
are previously disposed at corresponding positions of the outer pipe pieces 6a, 6b and
connect them together by screwing.
[0078]
The piercing pipe 10 is inserted from the lower side of the through hole 8 of the
cylinder holder 5 of the connected outer pipe 6. The top end of the square shaft 21 is
protruded from the hole 9, the square hole 22a of the seal piercing knob 22 is fitted into the
square shaft 21 with the rib 23 facing front, and they are connected together and fixed.
In this case, instead of the attachment above, the square shaft 21 and the seal
piercing knob 22 can be fixed by screwing or can be attached with a retaining ring.
[0079]
After the piercing knob 22 is mounted on the square shaft 21, the safety plate 27 is
inserted therebetween. The notch 28 is inserted to the top of the piercing pipe 10 with the
safety plate 27 sandwiched, and the assembly of the piercing device 2 is completed when
the tab 24 integrally formed with the safety plate 27 is attached on the seal piercing knob
22.
[0080]
As for shape, assembled piercing device 2 is composed about 83 mm high, about
60 mm long in front-back direction, and about 43 mm in external diameter. When the gas
cylinder 1 is loaded to the piercing device 2 which the hammer 47 is already attached
thereto, the spring 20 is inserted to the through hole 8 of the cylinder holder 5 of the
piercing device 2, O-ring 12 is attached to a step between the through hole 8 and the screw
hole 7, and the thread part 4 of the gas cylinder 1 is screwed to the screw hole 7.
[0081]
The fire extinguisher gas ejector which loaded the gas cylinder 1 is shown in the
Fig. 1 to Fig. 3 and is constituted small and lightweight, 183 mm high and weigh 460g.
Unlike conventional ones, it does not require a case that covers the outside of the gas
cylinder 1 so that the constitution becomes simpler and lightweight. Accordingly, it can be
produced easily and at low cost.
Moreover, the cutter 37 and the hammer 47 are provided with the gas cylinder 1
and piercing device 2, essential components for the fire extinguisher gas ejector. It does
not require an exclusive device for escaping so that the mechanisms for fire extinguishing
and escaping are constituted rationally. As for advantages, these functions can be used
simply.
[0082]
The assembled fire extinguisher gas ejector has the tab 24 with the knob 24a raised
and exposed on the seal piercing knob 22, and the safety plate 27 integrally formed with the
tab 24 is located between the seal piercing knob 22 and the outer pipe 6.
The jetting port guide 31 is located at middle and high position on front of the outer
pipe 6, the seat belt guide 34 is protruded obliquely downward, and the edge 37a of the
cutter 37 is perpendicularly disposed in the upper seat belt introduction groove 36.
[0083]
The curved concaved parts 42, 43 that form the grasping part are located
immediately below the jetting port guide 31 and the seat belt guide 34. The upper part of
the gas cylinder 1 is located inside of the concaved parts 42, 43 via space.
The mouth part for the gas cylinder 1 is sealed with the sealing plate 3 as shown in
Fig. 4, the piercing pipe 10 is located immediately above the sealing plate 3 to be able to
move up-and-down, the piercing pipe 10 is biased upwardly to move with the resilience of
the spring 20 and the tip part 19a of the needle tube 19 is located immediately above the
sealing plate 3.
[0084]
The sheet 46 is attached to cover the middle periphery of the cylinder 1, the
hammer 47 is disposed to the bottom of the cylinder 1, and the pointed part 48 is
downwardly exposed. In this case, it is preferable that a suitable cover is removably
attached on the pointed part 48.
[0085]
When installing such fire extinguisher gas ejector on a car, it is stored transversely
or longitudinally around a driver seat, front seat, for example, a pocket of inner side of a
door or an accessory case which is around a shift lever.
In this case, a cross sectional view of the piercing device 2 is formed in a shape of
elliptical which has a major axis in front and back direction so that rolling motion, abnormal
noise and damage of fire extinguisher gas ejector can be prevented when it is put
transversely.
In that case, preferably, if an appropriate holder is mounted to said position in a car
to fix the fire extinguisher gas ejector, further stability can be obtained.
[0086]
When the device is installed on a car and if the seat belt 35 cannot be taken off
or/and a door does not open by a traffic accident, the seat belt 35 need to be cut and/or a
windshield 50 needs to be broken when a driver or other member evacuate outside of the
car.
[0087]
Of them, when cutting the seat belt 35, the curved concaved parts 42, 43 are
grasped facing the seat belt introduction groove 36 of the piercing device 2 front, the seat
belt 35 is inserted into the seat belt introduction groove 36 to contact the edge 37a of the
cutter 37, and the piercing device 2 is pulled down to slice through the seat belt 35. The
state is shown in the Fig. 2.
[0088]
In this case, the seat belt introduction groove 36 is obliquely and downwardly open
with respect to the axial direction of the piercing device 2 so that the seat belt 35 can be
smoothly inserted by the chevron-shaped protrusion 33 compared to a one which has a
groove opens perpendicularly and downwardly.
Moreover, the edge 37a of the cutter 37 is disposed at an acute angle with respect
to the introduction direction of the seat belt 35. The edge 37a of the cutter 37 cuts into the
side edge of the seat belt 35 and prompt smooth cutting, compared to a edge of a cutter is
disposed at right angle with respect to the seat belt introduction groove.
[0089]
When breaking the windshield 50, the fire extinguisher gas ejector is grasped with
the bottom pointing a car side window or windshield, as with the case cutting the seat belt
35. Then, a windshield 50 is smashed with the pointed part 48 of the hammer 47 by
smashing and striking the windshield 50. This state is shown in Fig. 11.
[0090]
In this case, when breaking the windshield 50 after the seatbelt 35 is cut, the
windshield 50 can be broken in continuous motion without shifting the fire extinguisher gas
ejector. Similarly, when cutting the seat belt 35 after breaking the windshield 50, the seat
belt 35 can be cut in continuous motion without shifting a fire extinguisher gas ejector.
Accordingly, the action can be carried out quickly and safely compared with the
one which dispose the seat belt introduction groove 36 and the hammer 47 at the same side
or different position.
Moreover, the hammer 47 is disposed apart from the seat belt introduction groove
36 so that the windshield 50 is smashed surely and there is no fear of being injured.
[0091]
Neither the operation nor impact of cutting the seat belt 35 and breaking the
windshield would separate the safety plate 27 from the fixed position. The movement of
the piercing pipe 10 is prevented so there is no fear of seal piercing accidentally.
[0092]
Next, explanations for the fire extinguisher gas ejector are described below.
Specifically, if a fire occurs and it is extinguished when the fire extinguisher gas
ejector is installed in a car, hold the fire extinguisher gas ejector with one hand, and put the
finger 25 on the knob 24a of the tab 24 and pull up. The state is shown in Fig. 4.
In this case, the tab 24 is configured the same as a known tab for opening a
beverage container so that an operation for pulling the knob 24a up is easily understandable.
It is possible to respond to a fire in a car which needs quick operations.
[0093]
Thus, when the knob 24a of the tab 24 is raised, the tab 24 is pulled up with the
rear connecting part 26, as a fulcrum, against resilience. The component force for
backward acts on the safety plate 27 which is integrally formed with the tab 24 through
connecting part 26.
Therefore, the safety plate 27 is moved backward against the engaging force of the
piercing pipe 10 and the notch 28, and the safety plate 27 is pulled out backwardly.
The state is show in Fig. 12. The top surface of the seal piercing knob 22 is
exposed, and a space, which is the same thickness as the safety plate 27, is formed between
the seal piercing knob 22 and the top edge of the outer pipe 6.
[0094]
Then, the fire extinguisher gas ejector is shifted to grasp the curved concaved parts
42, 43 and the piercing device 2 as shown in Fig. 12. Then, the finger 25 is put on the top
of the seal piercing knob 22 and press down the seal piercing knob 22.
In this way, the piercing knob 22 is descended against the resilience of the spring
20, which moves the piercing pipe 10 accordingly, and the tip part 19a of the needle tube 19
pierces the sealing plate 3. The state is shown in Fig. 13.
[0095]
This introduces the filled gas of the gas cylinder 1 to jet from the pierced point to
the needle tube 19, and the pressure acts on the needle tube 19 and the piercing pipe 10.
Consequently, the jetting pressure thrusts back the piercing pipe 10 and the top end of the
large diameter part 10a is contacted with the step 11 and returned to the original position to
stop.
[0096]
The state is shown in Fig. 14. The needle rube 19 is moved immediately above
the sealing plate 3, the pierced point of the sealing plate 3 is communicated with the through
hole 8, and the through hole 8 is communicated with the nozzle hole 14 and the jetting port
13.
Accordingly, the filled gas is jetted from a pierced hole to the through hole 8 and it
is introduced from the nozzle hole 14 to the jetting port 13. Then, the gas is jetted outside
from the jetting port guide 31 and sprayed onto the source of the fire.
[0097]
At this time, a part of the carbon dioxide is adiabatically expanded to become dry
ice after jetting the filled gas and it is mixed with the gaseous carbon dioxide and jetted
toward the origin of a fire.
Thus, it lowers a temperature around a fire origin and stops oxygen supply. It
promotes efficiency and quick fire extinction.
[0098]
At this time, when the carbon dioxide is jetted, the latent heat cools and absorbs the
heat of the surface of the gas cylinder 1. The skirt part, which is close to the cylinder 1
and lower side of the piercing device 2, prevents heat conduction by a space disposed inner
side so that the finger 25 is not affected.
[0099]
The fire extinction continues until all the filled gas is completely used so that the
filled gas can be effectively used. Thus, the effectiveness of the fire extinction is
increased.
Moreover, after the filled gas is used up, the empty gas cylinder 1 can be easily
recovered after detaching the gas cylinder 1 from the screw hole 7 of the cylinder holder 5.
[0100]
Fig. 15 to Fig. 28 shows other embodiments of the present invention, and identical
numerals are used for the parts that have the same constitution with the above mentioned
embodiment.
Of them, Fig. 15 is a second embodiment of the present invention showing the
other embodiment of the hammer 47.
Specifically, in Fig. 15 (a), the hammer 47 which is made from sintered metal or
press molded steel plate is attached to the bottom of the gas cylinder 1 to alleviate a concern
over strength reduction of the gas cylinder 1 due to thermal stress by heating of spot
welding and brazing.
In Fig. 15 (b), the hammer 47 is insert molded by use of a bowl-shaped plastic
cylinder cover 51. The cover 51 is attached to the exposed bottom of the gas cylinder 1 so
that the cover 51 is rigidly attached.
[0101]
Fig. 16 to Fig. 22 is a third embodiment of the present invention showing other
cutting form of the seat belt 35. the other form of the hammer 47, and installed form of the
fire extinguisher gas ejector in a car.
Of them, as for other cutting form of the seat belt 35, the edge 37a of the cutter 37
is disposed obliquely downward in the middle of the seat belt introduction groove 36, and a
seat belt releasing part 52 is disposed with a space at the rear of the cutter 37.
[0102]
The seat belt releasing part 52 is integrally formed with the joining part 53 which is
disposed back of the seat belt introduction groove 36. The joining part 53 is constituted by
attaching a pair of joining pieces 53a, 53b that connect the seat belt guide 34 and the outer
pipe 6, and the seat belt releasing part 52 is protruded adjacent to the neck portion 54 of the
joining part 53.
[0103]
The seat belt releasing part 52 is constituted by connecting a pair of seat belt
releasing part pieces 52a, 52b. The cross sectional view has a shape of inverted triangular,
which the width increases as it goes to the back of the seat belt introduction groove 36 from
the distal end, the seat belt releasing part 52 has wider width except the distal end than the
thickness of the cutter 37, and the periphery which curves outside forms the seat belt
releasing surface 55. In illustration, reference numeral 56 indicates a space between the
cutter 37 and the seat belt releasing part 52.
[0104]
In this embodiment, the cylinder holder 5 is formed by aluminum and has the
through hole 8 therein, which communicates with the nozzle hole 14. The cylinder holder
5 is buried in the inner pipe cover 57, which is made of synthetic resin, as a insert fixture to
make them integrated. The jetting port 13 and the jetting port guide 31 are formed on the
inner pipe cover 57, and the outer pipe 6 is disposed outside of the inner pipe cover 57.
[0105]
Upper part of the outer pipe 6 has a pair of guide holes 58, and the guide pin 59
which is integrated with the seal piercing knob 22 is slidably inserted to the guide hole 58.
The seal piercing knob 22 has a flat surface top and a recess hole 60 on the center. The
threaded shaft 61 which is provided on the top end of the seal piercing pipe 10 is disposed
in the recess hole 60, and the seal piercing knob 22 is attached to the piercing pipe 10 by
screwing the nut 62 into the threaded shaft 61.
[0106]
The spring 63 which is inserted between the top end surface of the inner pipe cover
57 and a flanged part of the upper end of the piercing pipe 10 is used as a substitute of the
spring 20 which is disposed around the needle tube 19. The resilience of the spring 63
biased the seal piercing knob 22 upwardly. In illustration, reference numeral 64 shows a
cap which closes the recess hole 60.
[0107]
The tab 24 of the embodiment is disposed immediately above the end of the seal
piercing knob 22 with the knob 24a extended. The safety member 27 which is integrally
formed with the tab 24 is formed in a shape of a ring from a plate. This arrangement
promotes the operation of pulling the tab 24 up with notches 65, 66 as a fulcrum and the
operation of pulling the safety member 27 out.
[0108]
Fig. 17 shows the statement of the embodiment in which before the seal is pierced.
The spring 63 biased the seal piercing knob 22 upwardly, intervening the safety member 27
just under the seal piercing knob 22. The tab 24 is located immediate above the seal
piercing knob 22 and the tab 24 is normally restrained to the seal piercing knob 22 with an
adhesive seal (not shown).
When piercing the seal, the adhesive seal is broken, and the knob 24a of the tab 24
is held to pull up and moved toward upper right in Fig. 17. Then the seal piercing knob 22
is pulled out and make a space just under the seal piercing knob 22.
[0109]
Then, the piercing knob 22 is pressed down against the spring 63 and the piercing
pipe 10 is pressed down, and it moves the needle tube 19 in accordance with the move of
the piercing pipe 10. The sealing plate 3 is pierced with the tip part 19a of the needle tube
19. The state is shown in Fig. 18.
After the seal is pierced, the extinguishing gas in the gas cylinder 1 is jetted out,
pushing up the piercing pipe 10 by the extinguishing gas through the needle tube 19. The
gas comes to the through hole 8, then the gas is introduced from the nozzle hole 14 to the
jetting port guide 31 and is jetted outside.
[0110]
On the other hand, in this embodiment, when cutting the seat belt 35, as mentioned
above, the curved concaved parts 42, 43 are grasped facing the seat belt introduction groove
36 front, the seat belt 35 is held with another hand and inserted into the seat belt
introduction groove 36
Then, a side of the seat belt 35 is contacted with the edge 37a of the cutter 37, and
the piercing device 2 is pulled down quickly to slice through the seat belt 35.
[0111]
The state is shown in Fig. 20. Firstly, the side of the seat belt 35 is cut through
with the edge 37a of the cutter 37, and then the cut part is split in two sides along with the
cutter 37 and moved to the back of the seat belt introduction groove 36.
Then, after the cut part passes through the space 56, the cutting pressure of the
cutter 37 and the internal stress are released, then, the fiber is recovered and is moved to the
distal end of the seat belt releasing part 52.
[0112]
After this, the cut part is divided from the distal end and is moved to the back along
with the both sides of the belt releasing surface 55, push opening the cut part. The
spreading function reaches the other side of the seat belt 35, that is the cutting part side. It
prevents the seat belt 35 and the cutter 37 from contacting both sides closely or stagnating.
It promotes the seat belt 35 to move to the back smoothly.
Thus, the seat belt 35 moves smoothly without stagnation from the seat belt
releasing part 52 to the edge 37a of the cutter 37 and smooth and quick cutting is carried out
by the cutter 37.
In this case, when the seat belt releasing part 52 is closely located to the cutter 37
and the seat belt 35 is stuck in the minute space, the move of the seat belt 35 is stagnated
and unable to cut the belt. The space 56 prevents the situation.
[0113]
Fig. 21 is an enlarged view of the hammer 47 that is applied to the other
embodiment.
The hammer 47 of this embodiment is structured with the steel retaining ring 66
and the hammer shaft 67 which quenched steel hard material.
The retaining ring 66 is formed in a shape of plate and has the hole 68 in center.
After the retaining ring 66 is welded to the bottom of the gas cylinder 1, the hammer shaft
67 is inserted to the hole 68 together with the stopper, the C-ring 69. After the insertion,
the tapered surface 70 which is inner rim of the hole 68 is engaged with the C-ring 69 to
attach the hammer shaft 67 closely.
[0114]
The hammer shaft 67 has a shape of axis which is longer than the height of the
retaining ring 66. the annular groove 71, the neck portion, is formed on the base, the pointed
part 72 is formed at the end, and the pointed part 72 is protruded form outside of the
retaining ring 66.
The welding of the retaining ring 66 is carried out after the carbon dioxide is
charged to predetermined pressure and the mouth part is sealed with the sealing plate 3.
After the welding of the retaining ring 66, the gas cylinder 1 and the retaining ring 66 are
plated at the same time.
[0115]
After that, an adhesive is applied to the periphery of the hammer shaft 67 which is
processed with quenching and plating, the C-ring 69 which has elasticity and has a circular
cross section is attached by squeezing to the annular groove 71. The hammer shaft 67 is
inserted to the hole 68 while the C-ring is pushed and shrunk.
After the insertion, the tapered surface 70 of the inner rim of the hole 68 is engaged
with the spherical surface of the C-ring 69 with the elasticity. The C-ring 69 is attached by
pressure to the tapered surface 70 so that the wedge effect is obtained. The adhesive is put
in the gap among the gas cylinder 1, the C-ring 69, and the hammer shaft 67, and then fixed
to attach the hammer shaft 67 stiffly and tightly.
[0116]
In this case, the retaining ting 66 is welded to the gas cylinder 1. The processes of
welding and plating the hammer shaft 67 to the gas cylinder 1 are avoided by engaging the
hammer shaft 67 to the retaining ring 66.
Accordingly, when the hammer shaft 67 is welded to the gas cylinder 1 and plated,
it prevents the situation in which the pointed part 72 of the hammer shaft 67 damages the
periphery of the gas cylinder 1.
As mentioned above, in this embodiment, conventional facilities are available for
filling of the gas and for plating process. The hammer 47 can be attached surely and safely
without changing the procedures.
[0117]
The Fig. 22 shows the fire extinguisher gas ejector which is installed in a car.
The storing case 75 which is like a elongated shape bag and stores the piercing
device 2 with the gas cylinder 1 is stored in the concaved door pocket 74 which is provided
with the inner side of a door 73 adjacent to the driver's seat.
The storing case 75 is made by sewing a plate of soft foamed polyurethane resin.
It is structured with one end closed and the other end is open. The opening side has one
end of the open-close belt 76 which is attached detachably.
One ends of attaching belts 77, 78 are respectively attached to the periphery of the
storing case 75 and the simple stopper 79 such as a hook is disposed at the other ends, and a
stopper 79 is removably attached to a stopper (not shown), such as a hook, which is buried
outside wall of a door pocket 74 to fix a storing case 75 in place.
[0118]
A strap 80 is attached to the other ends of the attaching belt 77, 78 and stuck out to
face a driver's seat. When using the fire extinguisher gas ejector, hold the strap 80 with
one hand and pull up to remove the fixation of the stopper. Then the storing case 75 is
taken out from the door pocket 74.
After taking the storing case 75 out, one end of opening and closing belt 76 is
undone, the piercing device 2 is taken out from the case 75 to carry out an operation of fire
extinguishing, cutting of the seat belt 35, and breaking a windshield 81. In illustration,
reference numeral 82 shows a door trim and 83 shows a power window device.
[0119]
Fig. 23 to Fig. 25 shows a forth embodiment of the present invention. The
embodiment shows a bottomed protective case 84 for storing the piercing device 2 and the
bottom of the case 84 covers the hammer 47. For easy carrying and safety of the piercing
device 2, it is installed, for example, inside of a headrest and an appropriate place of a mat
(not shown) to the fixed position by using a clip.
[0120]
The protective case 84 is shaped like a vertically long bag using light and soft resin
foam. There is an upper opening 85 which is made by cutting the body obliquely, and the
upper opening 85 stores the seal piercing knob 22, the tab 24, the knob 24a, the seat belt
guide 34, seat belt introduction groove 36, and the cutter 37, respectively exposed.
[0121]
A lower opening 86 is formed on the lower part of the other side of the upper
opening 85 of the protective case 84, with the periphery of the gas cylinder 1 located
exposed from the lower opening 86. In illustration, reference numeral 87 shows a plurality
of open holes that have different diameters formed around the upper opening 63. One of
them is opened to correspond with the jetting guide 31.
[0122]
In this case, when breaking the windshield 50, the piercing device 2 is taken out
from the protective case 84 to carry out an operation. In that case, the upper opening 85,
the lower opening 86, and the open hole 87 loosen the contact or adhesion between the
protective case 84 against the piercing device 2 so that the piercing device 2 is taken out
smoothly from the protective case 84.
[0123]
Fig. 26 to Fig. 28 shows a fifth embodiment of the present invention. In this
embodiment, a waste of the extinguishing gas is prevented by stopping discharging the
extinguishing gas which is jetted from the gas cylinder after the seal is pierced. The gas
can be jetted accurately toward a fire origin, and the effective use of the gas and initial fire
fighting can be achieved. It shows the fire extinguisher gas ejector having the control
valve for household use or in car use, which has simpler structure by reducing the number
of the part.
[0124]
In the fifth embodiment, reference numeral 88 shows a case which has a shape of a
virtually hollow tubular made of synthetic resin. It is structured by joining a pair of cut
cases that are formed by cutting the center in half in the longitudinal direction. The case
has a screw part 89 on the lower periphery and a bottomed cap 90 is attached thereto.
[0125]
The case 88 has an opening 91 at top end and an operating lever 92, which is a
piercing member, is attached to the opening 91 to rotate up and down. The operating
lever 92 is structured with a synthetic resin plate which has virtually the same width of the
opening 91, one end has a protruded pin 93 which is slidably inserted to a long hole 94
formed on the case 88, and the other end is protruded from outside rear of the case 88.
[0126]
In illustration, reference numeral 92a is an engaging convex portion which
protruded in the center of the undersurface of the operating lever 92. It is disposed
engageable to the top end of the control valve, which will be described later, and a safety
pin 95 is inserted to the engaging convex portion 92a. Numeral 92b is a concaved finger
grip portion which is formed on the other end of the operating lever 92 and protrudes
backward from the case 88.
[0127]
The safety pin 95 is inserted by penetrating the center of the operating lever 92 and
the case 88. One end of the gasping portion (not shown), protrudes outside of the case 88.
making impossible to press the operating lever 92 in normal times or to pierce the seal
accidentally. When the safety pin 95 is pulled out by pulling the grasping portion (not
shown), an operation of pressing the lever 92 can be performed.
[0128]
The small gas cylinder 1 is stored inside of the case 88, with the bottom stored in
the cap 90. The periphery of the gas cylinder 1 is formed with the thread part 4 and the
thread part 4 is attached to the screw hole 7 of the cylinder holder 5 by screwing.
[0129]
The cylinder holder 5 is formed in a shape of cylinder by aluminum die-casting.
There is an opening for the screw hole 7 at the lower end and the through hole 8, a valve
hole 96, and a hole 97 are disposed to communicate one another at the upper part of the
thread hole 7. The respective inner diameters are formed to become smaller.
The middle to upper periphery of the cylinder holder 5 is provided with the jetting
port 13 which communicates with the jetting port guide 31 formed on the case 88, and the
bottom of the jetting port 13 is disposed with the nozzle hole 14, which communicates the
valve hole 96.
[0130]
The control valve 98 which is integrally formed with the piercing pipe 10 is
slidably inserted to the valve hole 96, and the top end is disposed to appear on top of the
cylinder holder 5. The top end is disposed engageable with the engaging convex portion 92a
when it protrudes.
The needle tube 19 which is a piercing member is protruded from the lower end of
the control valve 98, with the tip part 19a disposed immediately above the sealing plate 3.
In this case, tubular structure is not necessarily required for the needle tube 19.
[0131]
The control valve 98 is formed in a shape of stepped bar, and at least a pair of
O-rings 99, 100 are mounted to the positions of upper and lower of the periphery of the
large diameter part, enabling the valve hole 96 and the nozzle hole 14 to be air tightened by
the O-rings 99, 100.
The spring 20 is inserted between the lower end of the control valve 98 and the
sealing plate 3, and the resilience of the spring 20 biased the control valve 98 upwardly.
The stepped portion 98a which is formed on the middle of the control valve 98 is able to be
engaged with the rim of the lower opening of the hole 97.
[0132]
The control valve 98 is, in normal times, able to close the nozzle hole 14 by
positioning the O-ring 100, which is disposed lower side, at inner rim of the nozzle hole 14.
When pressing the operation lever 92 and piercing the sealing plate 3, the long hole 94
controls the descending displacement of both the operating lever 92 and the control valve 98,
and the O-ring 99, which is disposed upper side, is positioned at inner rim of the nozzle hole
14 to be able to close the nozzle hole 14.
[0133]
Then, when jetting the extinguishing gas by pressing the operation lever 92 after
the piercing, the O-rings 99,100 are respectively positioned at inner rim of the nozzle hole
14, the lower O-ring 100 is positioned at the side of the through hole 8, and the nozzle hole
14 is communicated with the through hole 8 to be able to jet the extinguishing gas from the
nozzle hole 14.
[0134]
In illustration, reference numeral 101 shows a concaved part formed on the top of
the cylinder holder 5, and a lever spring 102 is inserted between the concaved part 101 and
the opening lever 92. The resilience of the spring 102 biased the operating lever 92
upwardly. Numeral 3 a shows a sealed hole of the sealing plate 3.
[0135]
In this embodiment, an outer housing, a piercing holder, a pin, and a pushrod, the
parts to be disposed around the cylinder holder 5 in a conventional fire extinguisher gas
ejector are omitted. Only the cylinder holder 5 is disposed upside of the case 88 so that the
number of the parts are reduced and they are easily assembled. Thus, small and light
structure and low cost of the fire extinguisher gas ejector can be achieved.
In addition, the control valve 98 of this embodiment requires only to form the
annular groove which attaches two O-rings 99,100 at the predetermined position of the
periphery of the piercing pipe 10. Compared to the conventional control valve, the
structure is simpler and the less number of the parts is required. Therefore, it is produced
easily and inexpensively.
[0136]
The fire extinguisher gas ejector is used as follows. The cap 90 is removed before
use, the gas cylinder 1 is inserted from the bottom of the case 88, the thread part 4 of the
mouth part is screwed to the screw hole 7 of the cylinder holder 5 to attach the gas cylinder
1. and the cap 90 is screwed to the lower end of the case 88.
[0137]
In the fire extinguisher gas ejector of above mentioned, the O-ring 100 is
positioned at inner rim of the nozzle hole 14 to close the rim and intermit the guide hole 8,
valve hole 96, and the nozzle hole 14.
The resilience of the spring 20 biases the control calve 98 upwardly and the top end
is protruded from the top of the cylinder holder 5 to engage with the engaging convex
portion 92a of the operating lever 92.
The safety pin 95 is inserted to the operating lever 92 on the center, the pin 95 is
engaged with the top end of the long hole 94 to stop an operation of the operating lever 92.
Moreover, the needle tube 19 is located above the sealing plate 3 for the piercing operation.
The state is shown in Fig. 26.
[0138)
Next, when putting out a fire, the safety pin 95 is pulled out by pulling a grasping
portion (not shown) and the operating lever 92 is unlocked, the operating lever 92 is pressed
down the upper center against the resilience of the spring 20.
In this way, the operating lever 92 is descended horizontally through the pin 93
along with the long hole 94, the engaging convex portion 92a presses the top end of the
piercing pipe 10 and pushes down the control valve 98 against the resilience of the valve
spring 102.
Therefore, the needle tube 19 moves in accordance with the control valve 98, and
the tip part 19a pierces the sealing plate 3. The state is shown in Fig. 27.
[0139)
When piercing, the O-ring 99 moves to the inner rim of the nozzle hole 14 to close
the nozzle hole 14 and intermit the nozzle hole 14 and the through hole 8.
Thus, if the extinguishing gas is jetted from the gas cylinder 1 by piercing and
flowed to the through hole 8, the gas does not flow out from the nozzle hole 14.
[0140)
After the piercing, when releasing a hand from the operating lever 92, the spring 20
pushes up the control valve 98 and the O-ring 100 is moved to the original position which
shown in Fig. 26 to seal the nozzle hole 14. The operating lever 92 is pushed up engaged
with the piercing pipe 10 and the pin 93 moves to the original position in Fig 26 engaged
with the top end of the long hole 94.
Accordingly, after the piercing, the extinguishing gas is jetted swiftly to the
through hole^fc from the pierced hole 3a of the sealing plate 3. However, the O-ring 100
stops the outflow of the gas from the nozzle hole 14, and the O-ring 99 prevents the leakage
from the valve hole 96 and the gas stagnates in the through hole 8.
[0141]
Under the situation like the above-mentioned, a finger is put on a finger grip
portion 92b and press the operating lever 92 down against the resilience of the lever spring
102. Then, the operating lever 92 rotates downward with the pin 93, which acts as a
fulcrum, and the engaging convex portion 92a presses the piercing pipe 10 down.
Then, the O-ring 99, 100 moves lower, the O-ring 100 uncloses the nozzle hole 14
and moves to the upper part of the through hole 8, communicating the nozzle hole 14 with
the through hole 8, and the O-ring 99 moves to immediate above the rim of the inner side of
the nozzle hole 14 to seal the valve hole 96.
[0142]
The state is shown in Fig. 28. The descending displacement of the piercing pipe
10 and the control valve 98 is less than when the seal is pierced. Therefore, the O-ring 99
does not close the nozzle hole 14, and the pierced hole 3a is not closed by inserting the
needle tube 19. The nozzle hole 14 is remained open and the jetting of the extinguishing
gas from the pierced hole 3a is remained.
Consequently, the extinguishing gas is jetted from the nozzle hole 14 to the jetting
port 13 and jetted outside from the jetting guide 31 toward a fire origin.
[0143]
As mentioned above, the control valve 98 in the embodiment, the extinguishing gas
which is jetted after the piercing is once stagnated in the through hole 8. When the
through hole 8 and the nozzle hole 14 are communicated with each other by the operation of
the operating lever 92 after the seal is pierced, the extinguishing gas is accurately jetted to a
fire origin.
Then, releasing a hand from the operating lever 92 when jetting the gas, the O-ring
100 seals the nozzle hole 14, as mentioned above, the jetting of the extinguishing gas is
stopped, and the O-ring 99 stops the leakage from the valve hole 96 and the gas stagnates in
the through hole 8. Accordingly, the unused extinguishing gas after the seal piercing is
used effectively.
[INDUSTRIAL APPLICABILITY]
[0144]
Accordingly, the fire extinguisher gas ejector of the present invention easily and
quickly removes the safety member, pierce the seal of the small gas cylinder mounted
therewith, and jet the gas promptly to attempt early fire extinction. This invention
comprises the emergency escape mechanism from vehicle, which cuts a seat belt promptly
and breaks the windshield surely in case such as a fire in vehicle and collision, and attempts
a prompt escape from vehicle. Moreover, it does not require a device exclusive to escape.
Mechanisms for fire extinction and escaping are rationally constituted. The hammer can
be rationally and safely attached to the gas cylinder. The invention comprises the control
valve which prevents the waste of the extinguishing gas and jets the fire extinguishing gas
to the origin of a fire surely and accurately in fire fighting. Thus, the present invention is
suitable for a fire extinguisher, for example, used in a vehicle.
[DOCUMENTATION] WHAT IS CLAIMED IS:
[CLAM 1]
A fire extinguisher gas ejector comprising:
a gas cylinder 1 filled with extinguishing gas, sealed with a seal and provided with a mouth
part removably attached thereto;
a cylinder holder 5 formed therein with a through hole 8 and a nozzle hole 14;
a piercing pipe 10 which is slidably mounted onto the cylinder holder 5, biased to upwardly
move, and provided at one end thereof with a tip part 19a capable of piercing the seal;
a piercing member 22 or 92 coupling with the other end of the piercing pipe 10;
a safety member 27 or 95 capable of restraining an operation of the piercing pipe 10; and
a control valve 98 movably provided in a communicating passage between the through hole
8 and the nozzle hole 14 to be able to be intermit the commutation passage by a move of
the control valve 98.
[CLAIM 2)
A fire extinguisher gas ejector according to claim 1, wherein the through hole 8 has
a small-caliber valve hole 96 and the control valve 98 is slidably provided in the valve hole
96.
[CLAIM 3]
A fire extinguisher gas ejector according to claim 2, wherein the control valve 98
has a periphery on which at least two O-rings 99, 100 are mounted apart from each other,
the valve hole 96 is air-tightened with one of the O-rings 99, before or when the seal is
pierced by the piercing pipe 10, and either one of the O-rings 99,100 is positioned at an
inner opening of the nozzle hole 14 to be able to close the nozzle hole 14.
[CLAIM 43
A fire extinguisher gas ejector according to claim 3, wherein the piercing pipe 10 is
returned to an original position under pressure of an extinguishing gas jetted from the gas
cylinder 1, and one of the O-ring 99 is positioned at the inner opening of the nozzle hole to
be able to close the nozzle hole 14.
(CLAM 5]
A fire extinguisher gas ejector according to claim 4, wherein the extinguishing gas
jetted from the gas cylinder 1 is able to stagnate in the through hole 8 after the seal is
pierced.
[CLAIM 6]
A fire extinguisher gas ejector according to claim 4 or 5, wherein the closed nozzle
hole 14 is unclosed with one of the O-rings 100 through the operation of the piercing pipe
10 after the seal is pierced, thereby allowing the extinguishing gas to be jetted from the
nozzle hole 14.
(CLAIM 1}
A fire extinguisher gas ejector according to claim 4, wherein the piercing pipe 10
has a lower part exhibiting a less descending displacement after the seal is pierced than
when the seal is pierced.
(CLAIM 8]
A fire extinguisher gas ejector according to claim 1, wherein the safety member 27
is arranged just below the piercing member 22 to be able to be pulled out laterally, and the
safety member 27 is formed integrally with a tab 24 that is arranged on the piercing member
22 to be able to be pulled up.
(CLAIM 9]
A fire extinguisher gas ejector according to claim 8, wherein the safety member 27
is formed in a shape of a plate or ring.
(CLAIM 10]
A fire extinguisher gas ejector comprising:
a gas cylinder 1 filled with extinguishing gas, sealed with a seal and provided with an
exposed bottom and a mouth part removably attached thereto;
a cylinder holder 5 formed therein with a through hole 8 and a nozzle hole 14;
a piercing pipe 10 which is slidably mounted onto the cylinder holder 5, biased to upwardly
move, and provided at one end thereof with a tip part 19a capable of piercing the seal;
a piercing member 22 coupling with the other end of the piercing pipe 10;
a safety member 27 capable of restraining an operation of the piercing pipe 10;
and a hammer 47 having a pointed part 72 and attached to the exposed bottom of the
cylinder 1.
[CLAM 11]
A fire extinguisher gas ejector according to claim 10, wherein the hammer 47 is
attached to the gas cylinder 1 after filling with the extinguishing gas.
[CLAIM 12]
A fire extinguisher gas ejector according to claim 10, wherein the hammer 47
comprises a retaining ring 66 attached to the exposed bottom of the gas cylinder 1 and a
hammer shaft 67 that has a neck 71 hooked to an inside of the retaining ring 66 and the
pointed part 72 protruded outside the retaining ring 66.
[CLAM 13]
A fire extinguisher gas ejector according to claim 12, wherein after the retaining
ring 66 is attached to the gas cylinder 1, the retaining ring 66 and the gas cylinder 1 are
plated.
[CLAM 14]
A fire extinguisher gas ejector according to claim 12 or 13, wherein the neck 71 of
the hammer shaft 67 has an elastic stopper 69 mounted thereon, and the stopper 69 is
arranged to engage with an inner opening of the retaining ring 66.
[CLAM 15]
A fire extinguisher gas ejector according to claim 10, further comprising an outer
shell 6 provided outside the cylinder holder 5, a seat belt introduction groove 36 provided in
a periphery of the outer shell 6 and capable of inserting a seat belt 35 therein, and a cutter
37 arranged to face the seat belt introduction groove 36.
[CLAIM 16]
A fire extinguisher gas ejector according to claim 15, wherein the seat belt
introduction groove 36 is arranged on a side opposite to a side of the nozzle hole 14.
[CLAIM 17]
A fire extinguisher gas ejector according to claim 15, wherein the cutter 37 is
provided therein with a seat belt releasing part 52.
[CLAIM 18]
A fire extinguisher gas ejector according to claim 17, wherein the seat belt
releasing part 52 is integrally formed with the outer shell 6.
[CLAIM 19]
A fire extinguisher gas ejector according to claim 17, wherein the seat belt
releasing part 52 has a substantially inverted triangular cross-section taken along a direction
of introducing the seat belt in the seat belt introduction groove 36.
[CLAM 20]
A fire extinguisher gas ejector according to claim 17, wherein the seat belt
releasing part 52 is provided in a vicinity of a rear of the cutter 37 and has a distal end
insertable in a cut part of the seat belt, and releasing surfaces formed on opposite sides
thereof to continue with the distal end for spreading and moving the cut part of the seat belt
35.
[CLAIM 21]
A fire extinguisher gas ejector according to claim 15, wherein the outer shell 6 is
provided on a lower periphery thereof with curved concaved parts 42, 43 disposed apart
from an upper periphery of the gas cylinder 1.
[CLAIM 22]
A fire extinguisher gas ejector according to claim 21, wherein the curved concaved
parts 42, 43 are disposed on front and back sides of the lower periphery of the outer shell 6
and have a plurality of concavo-convex parts 44, 45.
[CLAIM 23]
A fire extinguisher gas ejector according to claim 21, further comprising a piercing
device 2 loaded with the gas cylinder 1, a storing case 75 accommodated in a door pocket of
a car for storing the piercing device 2, a strap having opposite ends thereof attached to a
periphery of the storing case 75, a middle part thereof provided with a stopper 79 that is
detachably attached to an engaging part buried in an outer surface of the door pocket, and a
leading end thereof stuck out to face a driver side.
[CLAIM 24]
A fire extinguisher gas ejector according to claim 21, further comprising a piercing
device 2 loaded with the gas cylinder 1 and a protective case 84 installed at an appropriate
place in a car for storing the piercing device 2 and formed with upper and lower opening 85,
86 facing in opposite directions, wherein the seat belt introduction groove 36 and piercing
member 22 emerge at the upper opening 85, whereas a periphery of the gas cylinder 1
emerges at the lower opening 86.


A fire extinguisher gas ejector suitable for mount-
ing on a vehicle and for use as an evacuation device has a gas con-
tainer scaled with fire extinguisher gas inside a container holder to
which a mouth section of the gas container is removably mounted
and having in it a through hole and a nozzle hole, a seal breaking
lever slidably mounted in the container holder, movably urged up-
ward, and having at one end a sharp end capable of breaking the seal,
a scal breaking operation member linked to the other end of the scal
breaking lever, and a safety member capable of restraining operation
of the scal breaking lever. A control valve is movably provided in a
communication path between the through hole and the nozzle hole.
The communication path can be opened and closed by movement of
the control valve. The bottom of the gas container is adapted to be
extemally exposable and a hammer member having a sharp end is
mounted on the bottom.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=M6HKuVcUhpdBBVzPkADcfg==&loc=wDBSZCsAt7zoiVrqcFJsRw==


Patent Number 268702
Indian Patent Application Number 4523/KOLNP/2009
PG Journal Number 38/2015
Publication Date 18-Sep-2015
Grant Date 11-Sep-2015
Date of Filing 29-Dec-2009
Name of Patentee BASF SE
Applicant Address 67056 LUDWIGSHAFEN GERMANY
Inventors:
# Inventor's Name Inventor's Address
1 KORADIN, CHRISTOPHER RIEDLANGSTR. 15, 67067 LUDWIGSHAFEN GERMANY
2 BAUMANN, ERNST FALKENSTR. 6A, 67373 DUDENHOFEN GERMANY
3 EBUENGA, CECILLE PUROK VI, PUTHO-TUNTUNGIN, LOS BANOS, LAGUNA PHILIPPINES
4 KORDES, MARKUS ROXHEIMERSTRASSE 39, 67240 BOBENHEIM-ROXHEIM GERMANY
5 LE VEZOUET, RONAN NECKARPROMENADE 20, 67167 MANNHEIM GERMANY
6 CULBERTSON, DEBORAH L. 6400 VINTAGE RIDGE LANE, FUQUAY VARINA, NORTH CAROLINA 27526 UNITED STATES OF AMERICA
7 ANSPAUGH, DOUGLAS D. 4007 WINECOTT DRIVE, APEX, NORTH CAROLINA 27502 UNITED STATES OF AMERICA
8 OLOUMI-SADEGHI, HASSAN 12105 PAWLEY'S MILL CIRCLE, RALEIGH, NORTH CAROLINA 27614 UNITED STATES OF AMERICA
PCT International Classification Number A01N43/50; A01N43/76; A01N43/78
PCT International Application Number PCT/EP2008/058517
PCT International Filing date 2008-07-02
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/958,134 2007-07-03 U.S.A.