Title of Invention	A BICYCLE
Abstract	A bicycle comprising, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points .

Title of Invention

A BICYCLE

Abstract

A bicycle comprising, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points .

Full Text	This invention relates to a bicycle. In the conventional bicycle, the pedal arms are manually rotated through 360 degrees to move the bicycle forward. This can, often, be tiresome especially when climbing a hill or other slope, because the rider will have to push one of the pedal arms downwards a little beyond bottom dead centre before the other pedal arm can come into position for being pushed downwards in its turn. The bicycle proposed herein does not necessitate the rotation of the pedal arms through 360 degrees. On the other hand, each of the pedal arms will have to be pushed downwards, alternately, only through a predetermined angular distance. This means that the pedalling operation becomes a simpler and more comfortable operation for the rider. Besides, the pedalling action is converted into a simple positive downward thrust covering a shorter angular distance. The bicycle, according to this invention, com- prises, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same ; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points. This invention will now be described with reference to the accompanying drawings which illustrate, by way of example, one of the possible embodiments of the bicycle proposed herein, wherein, Fig. 1 illustrates the bicycle in side view, the view from the other side being the same. Fig.2 illustrates the bicycle in top view and Fig.3 illustrates a part side view of the pedal arms connected together by a wire rope and pulley The embodiment illustrated has, on either side thereof, driver sprockets Dl D2 coupled, by chains C1 C2, to freewheel sprockets Fl F2 provided for the rear wheel R of the bicycle. The front wheel is indicated by V. Two pedal arms P1 P2, on either side of the bicycle, are respectively fixed to the driver sprockets D1,D2 for rotatably moving the same. The pedals are indicated by Ql Q2. Means for connecting the pedal arms PI P2 together, are provided, whereby as one pedal arm PI (or P2) is pushed downwards the other pedal arm P2 (or Pi) is pulled upwards. One of possible forms of such means comprise a wire rope W passing over a pulley T, the ends of the said wire rope being respectively attached at Kl K2 to the pedal arms PI P2 (Fig.l). The pulley T is fixed to the frame J of the bicycle. Another form of such means comprise a chain in¬stead of the wire rope W) passing over a sprocket (instead of the pulley T) the ends of the said chain being respectively attached at Kl K2 to the pedal arms P1 P2. The sprocket is fixed to the frame J of the bicycle as in the case of the pulley T. Two stops Ml M2 are provided on either side of the bicycle, respectively disposed below the pedal arms PI P2, for arresting any downward movement of the pedal arms below predetermined points. It will now be seen that to move the bicycle forward, all that the rider has to do is to push one of the pedal arms P1 (or P2) downwards. The drive transmitted by the corresponding driver sprocket Dl (or D2) to the corresponding freewheel sprocket Fl (or F2) turns the rear wheel R and the bicycle moves forward. Meanwhile, since the above mentioned pedal arm PI (or P2) has been pushed downwards, the other pedal arm p2 (or Fl) is, simultaneoulsy, pulled upwards by the wire rope W. The latter pedal arm P2 (or PI) is thus now in position for being pushed down¬wards; and when this is done, the drive transmit¬ted by the corresponding driver sprocket D2 (or Dl) to the corresponding freewheel sprocket F2 (or Fl) turns the rear wheel R further, to continue the forward movement of the bicycle. The proce¬dure is repeated, with the pedal arms P1 P2 being alternately pushed downwards by the rider, to cause continuous movement of the bicycle. Since the up and down movement of the pedal arms is best contained within convenient limits, the stops Ml M2 arrest any downward movement of the pedal arms below predetermined points. The term "bicycle" in this specification means and includes tricycles, quadricycles and other vehi¬cles to which this invention is applicable. The terms and expressions in this specification are of description and not of limitation, there being no intention in the use of such terras and expressions of excluding any equivalents of the features illustrated and described, but it is understood that various other embodiments of the bicycle proposed herein are possible without departing from the scope and ambit of this inven¬tion. We Claim; A bicycle comprising, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same ; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points. 2. A bicycle as claimed in Claim 1 wherein the said means comprise a wire rope passing over a pulley, the ends of the said wire rope being respectively attached to the two pedal arms; arid the pulley being fixed to the frame of the bicycle. 3. A bicycle as claimed in Claim 1 wherein the said means comprise a chain passing over a sprocket, the ends of the said chain being respectively attached to the two pedal arms; and the sprocket being fixed to the frame of the bicycle. 4.A bicycle substantially as herein described with reference to, and as illustrated in, the accompanying drawings. Dated this the 30th day of April 1996

Full Text

This invention relates to a bicycle.
In the conventional bicycle, the pedal arms are manually rotated through 360 degrees to move the bicycle forward. This can, often, be tiresome especially when climbing a hill or other slope, because the rider will have to push one of the pedal arms downwards a little beyond bottom dead centre before the other pedal arm can come into position for being pushed downwards in its turn.
The bicycle proposed herein does not necessitate the rotation of the pedal arms through 360 degrees. On the other hand, each of the pedal arms will have to be pushed downwards, alternately, only through a predetermined angular distance. This means that the pedalling operation becomes a simpler and more comfortable operation for the rider. Besides, the pedalling action is converted into a simple positive downward thrust covering a shorter angular distance.
The bicycle, according to this invention, com-

prises, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same ; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points.
This invention will now be described with reference to the accompanying drawings which illustrate, by way of example, one of the possible embodiments of the bicycle proposed herein, wherein,
Fig. 1 illustrates the bicycle in side view, the view from the other side being the same.
Fig.2 illustrates the bicycle in top view
and
Fig.3 illustrates a part side view of the pedal

arms connected together by a wire rope and pulley
The embodiment illustrated has, on either side thereof, driver sprockets Dl D2 coupled, by chains C1 C2, to freewheel sprockets Fl F2 provided for the rear wheel R of the bicycle. The front wheel is indicated by V.
Two pedal arms P1 P2, on either side of the bicycle, are respectively fixed to the driver sprockets D1,D2 for rotatably moving the same. The pedals are indicated by Ql Q2.
Means for connecting the pedal arms PI P2
together, are provided, whereby as one pedal arm
PI (or P2) is pushed downwards the other pedal arm
P2 (or Pi) is pulled upwards.
One of possible forms of such means comprise a wire rope W passing over a pulley T, the ends of the said wire rope being respectively attached at Kl K2 to the pedal arms PI P2 (Fig.l). The pulley T is fixed to the frame J of the bicycle.

Another form of such means comprise a chain in¬stead of the wire rope W) passing over a sprocket (instead of the pulley T) the ends of the said chain being respectively attached at Kl K2 to the pedal arms P1 P2. The sprocket is fixed to the frame J of the bicycle as in the case of the pulley T.
Two stops Ml M2 are provided on either side of the bicycle, respectively disposed below the pedal arms PI P2, for arresting any downward movement of the pedal arms below predetermined points.
It will now be seen that to move the bicycle forward, all that the rider has to do is to push one of the pedal arms P1 (or P2) downwards. The drive transmitted by the corresponding driver sprocket Dl (or D2) to the corresponding freewheel sprocket Fl (or F2) turns the rear wheel R and the bicycle moves forward.
Meanwhile, since the above mentioned pedal arm PI (or P2) has been pushed downwards, the other pedal

arm p2 (or Fl) is, simultaneoulsy, pulled upwards by the wire rope W. The latter pedal arm P2 (or PI) is thus now in position for being pushed down¬wards; and when this is done, the drive transmit¬ted by the corresponding driver sprocket D2 (or Dl) to the corresponding freewheel sprocket F2 (or Fl) turns the rear wheel R further, to continue the forward movement of the bicycle. The proce¬dure is repeated, with the pedal arms P1 P2 being alternately pushed downwards by the rider, to cause continuous movement of the bicycle.
Since the up and down movement of the pedal arms is best contained within convenient limits, the stops Ml M2 arrest any downward movement of the pedal arms below predetermined points.
The term "bicycle" in this specification means and includes tricycles, quadricycles and other vehi¬cles to which this invention is applicable.
The terms and expressions in this specification are of description and not of limitation, there

being no intention in the use of such terras and expressions of excluding any equivalents of the features illustrated and described, but it is understood that various other embodiments of the bicycle proposed herein are possible without departing from the scope and ambit of this inven¬tion.

We Claim;
A bicycle comprising, on each side thereof, a driver sprocket coupled, by a chain, to a freewheel sprocket provided for the rear wheel; a pedal arm, on each side, fixed to the corresponding driver sprocket for rotatably moving the same ; means for connecting the two pedal arms together, whereby as any one pedal arm is pushed downwards the other pedal arm is pulled upwards; a stop, on each side, disposed below the corresponding pedal arm, for arresting any downward movement of the two pedal arms below predetermined points.
2. A bicycle as claimed in Claim 1 wherein the said means comprise a wire rope passing over a pulley, the ends of the said wire rope being respectively attached to the two pedal arms; arid the pulley being fixed to the frame of the bicycle.
3. A bicycle as claimed in Claim 1 wherein the said means comprise a chain passing over a sprocket, the ends of the said chain being respectively

attached to the two pedal arms; and the sprocket being fixed to the frame of the bicycle.
4.A bicycle substantially as herein described with reference to, and as illustrated in, the accompanying drawings.
Dated this the 30th day of April 1996

Documents:

0704-mas-96 abstract duplicate.pdf

0704-mas-96 claims duplicate.pdf

0704-mas-96 description (complete) duplicate.pdf

0704-mas-96 drawings duplicate.pdf

704-mas-1996- abstract.pdf

704-mas-1996- claims.pdf

704-mas-1996- correspondence others.pdf

704-mas-1996- correspondence po.pdf

704-mas-1996- description complete.pdf

704-mas-1996- drawings.pdf

704-mas-1996- form 1.pdf

704-mas-1996- form 26.pdf

704-mas-1996- other documents.pdf

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Patent Number

235301

Indian Patent Application Number

704/MAS/1996

PG Journal Number

29/2009

Publication Date

17-Jul-2009

Grant Date

30-Jun-2009

Date of Filing

30-Apr-1996

Name of Patentee

RAMESHCHANDRA PANDITRAO PALNITKAR

Applicant Address

5-2-1026 J.N. ROAD, HYDERABAD 500 195.

Inventors:

#	Inventor's Name	Inventor's Address
1	RAMESHCHANDRA PANDITRAO PALNITKAR	5-2-1026 J.N. ROAD, HYDERABAD 500 195.
2	RAHUL RAMESHCHANDRA PALNITKAR	5-2-1026, J.N. ROAD, HYDERABAD 500 195.

PCT International Classification Number

B62K3/16

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA