Title of Invention

DUAL ONE-WAY CLUTCH ASSEMBLY

Abstract A device for transmitting torque between a first component and a second component is provided. The device includes a first race coupled to the first component and a second race coupled to the second component. The second race is disposed concentrically with the first race. A first rocker is pivotally connected to the first race and is moveable to rotationally fix the first race to the second race to transfer torque therebetween. A second rocker is pivotally connected to the first race and is disposed axially adjacent to the first rocker. The second rocker is moveable to rotationally fix the first race to the second race to transfer torque therebetween. A selector ring is disposed between the first race and the second race. The selector ring is moveable to engage the first rocker to prevent the first rocker from engaging the second race.
Full Text DUAL ONE-WAY CLUTCH ASSEMBLY
FIELD
[0001] The present disclosure relates to torque transmitting devices,
and more particularly to a torque transmitting device having a plurality of
clutches.
BACKGROUND
[0002] The statements in this section merely provide background
information related to the present disclosure and may not constitute prior art.
[0003] There are many devices for transmitting torque known in the art.
Examples include hydraulically actuated clutch plates, dog clutches actuated by
shift forks, and one-way clutches. These devices are able to transmit torque
between two separate components, and each are useful for their intended
purpose.
[0004] The one-way clutch is a compact design used in many
applications for transmitting torque in one rotational direction. A typical one-way
clutch includes an inner ring disposed within an outer ring. A connecting member
is located between the rings for selectively transmitting torque between the rings.
The connecting member may take various forms, for example, a sprag, roller, or
diode. The connecting member acts to engage the rings in order to transmit
torque when one of the rings is rotated in a first direction. If the rings are rotated
in an opposite direction, the connecting member does not engage the rings, and
1

torque is not transmitted through the one-way clutch. In this way the one-way
clutch is effective in transmitting torque between two components.
[0005] However, a known limitation with a one-way clutch is that
different torque settings cannot be selected. While various solutions have been
provided in the past, there remains room in the art for improvement in providing a
selectable clutch assembly that includes desirable packaging flexibility,
component size advantages, control complexity, and decreased torque losses.
SUMMARY
[0006] It is an object of the present invention to provide the art with a
device for transmitting torque between a first component and a second
component.
[0007] In one aspect of the present invention, the device includes a first
race coupled to the first component, a second race coupled to the second
component, the second race disposed concentrically with the first race, a first
rocker pivotally connected to the first race, the first rocker moveable to
rotationally fix the first race to the second race to transfer torque therebetween, a
second rocker pivotally connected to the first race, the second rocker disposed
axially adjacent to the first rocker, the second rocker moveable to rotationally fix
the first race to the second race to transfer torque therebetween, and a selector
ring disposed between the first race and the second race, the selector ring
moveable to engage the first rocker to prevent the first rocker from engaging the
second race.
2

[0008] In another aspect of the present invention, the first rocker
engages the second race when rotated in a first direction.
[0009] In yet another aspect of the present invention, the second
rocke- engages the second race when rotated in a second direction.
[0010] In still another aspect of the present invention, the second race
has an inner surface forming an at least one pocket, and the first rocker and the
second rocker are moveable to engage the first pocket to transmit torque
between the first race and the second race.
[0011) In still another aspect of the present invention, the second race
has an inner surface forming a first pocket radially adjacent to a second pocket,
and the first rocker is moveable to engage the first pocket and the second rocker
is moveable to engage the second pocket.
[0012] In still another aspect of the present invention, the first rocker
has a first extending arm biased to pivot toward the second race in the first
direction, the first extending arm engaging the first pocket to rotationally fix the
first race to the second race to transmit torque therebetween.
[0013] In yet another aspect of the present invention, the first extending
arm moves out of the first pocket when the first extending arm is rotated in the
second direction thereby not transmitting torque between the first race and
second race.
[0014] In yet another aspect of the present invention, the second
rocker has a second extending arm biased to pivot toward the second race in the
3

second direction, the second extending arm engaging the second pocket to
rotationatly fix the first race to the second race to transmit torque therebetween.
[0015] In still another aspect of the present invention, the second
extending arm moves out of the second pocket when the second extending arm
is rotated in the second direction thereby not transmitting torque between the first
race and second race.
[0016] In still another aspect of the present invention, the first race
includes a first inner portion and a second inner portion, the first inner portion
having the first rocker, the second inner portion having the second rocker.
[0017] In yet another aspect of the present invention, the second race
includes a first outer portion and a second outer portion, the first outer portion
having the first pocket formed thereon, the second outer portion having the
second pocket formed thereon.
[0018] In yet another aspect of the present invention, the first inner
portion is connected to the second inner portion by an at least one connector.
[0019] In yet another aspect of the present invention, the first inner
portion is connected to the second outer portion by an at least one connector.
|0020] It is an object of the present invention to provide the art with a
second device for transmitting torque between a first component and a second
component.
[0021] In one aspect of the present invention, the device includes a first
race, a second race disposed radially outward of the first race, the second race
having a first pocket, a third race disposed radially outward of the second race,
4

the third race having a second pocket, a first rocker pivotally connected to the
first race, the first rocker moveable to engage the first pocket to rotationally fix
the first race to the second race to transfer torque between the first component
and the second component, a second rocker pivotally connected to the second
race, the second rocker moveable to engage the second pocket to rotationally fix
the second race to the third race to transfer torque between the first component
and the second component, and a selector ring disposed between the second
race and the third race, the selector ring moveable to engage the second rocker
to prevent the second rocker from engaging the second pocket.
[0022] Further areas of applicability will become apparent from the
description provided herein. It should be understood that the description and
specific examples are intended for purposes of illustration only and are not
intended to limit the scope of the present disclosure.
DRAWINGS
[0023] The drawings described herein are for illustration purposes only
and arc not intended to limit the scope of the present disclosure in any way.
[0024] FIG. 1A is a schematic view of a rocker one-way clutch
according to the principles of the present invention;
[0025] FIG. 1B is a schematic view of a selectable rocker one-way
clutch according to the principles of the present invention;
[0026] FIG. 2 is a schematic view of a dual clutch assembly according
to one embodiment of the present invention;
5

[0027] FIG. 3 is a schematic view of a dual clutch assembly according
to a second embodiment of the present invention; and
$028] FIG. 4 is a schematic view of a dual clutch assembly according
tc a third embodiment of the present invention.
DETAILED DESCRIPTION
[0029] The following description is merely exemplary in nature and is
not inuhnded to limit the present disclosure, application, or uses.
[0030] In order to provide a clear description of the present invention,
two clutches, illustrated in FIG.'s 1A and 1B, will first be described. These two
clutches are employed throughout the various embodiments of the present
invention.
[0031] With reference to FIG. 1A, a rocker one-way clutch 10, or clutch
10, employed in the present invention is illustrated. The clutch 10 includes a first
race 12. The first race 12 is annular in shape and includes an outer surface 14.
A plurality of recesses 16 are formed in the outer surface 14 and are spaced
annularly around the inner perimeter of the first race 12. A plurality of slots 18
are also formed on the outer surface 14 and the slots 18 are spaced annularly
around the inner circumference of the first race 12. The slots 18 are disposed
adjacent to the recesses 16.
[0032] The clutch 10 further includes a plurality of rockers 20. The
rockers 20 include a body 22 and an arm 24. The arm 24 extends away from the
body 22. The rockers 20 are pivotally connected to the outer surface 14 of the
6

first race 12 such that for each rocker 20, the body 22 fits within a recess 16, and
the arm 24 extends over an adjacent slot 18. As will be described in further
detail below, the rockers 20 are designed to selectively transmit torque through
the clutch 10.
[0033] A plurality of biasing members 26 are disposed within the slots
18. In the present example the biasing members 26 are coil springs, but it
should be appreciated that various other types of biasing members may be
employed. The biasing members 26 engage the arm 24 and urge the rocker 20
to rotate in a first direction A. In the present example the first direction A is
illustrated as rotationally clockwise, but it should be appreciated that the rockers
20, slots 18, and biasing members 26 may be oriented in an opposite direction
such that the rotation in the first direction A is counter-clockwise.
[0034] The clutch 10 also includes a second race 30. The second race
30 is disposed radially outward of the first race 12 such that the rockers 20 are
disposed between the first race 12 and the second race 30. The second race 30
is concentric to the first race 12. The second race 30 is generally annular in
shape and includes an inner surface 32. A plurality of pockets 34 are formed on
the inner surface 32 and are spaced annulariy around the inner circumference of
the second race 30,
[0035] Torque is transmitted through the clutch 10 when the first race
12 is rotationally fixed to the second race 30 by the clockwise rotation of the
rockers 20. More specifically, engagement of the rockers 20 to the second race
30 occurs when the first race 12 rotates in a direction X as indicated in FIG 1A or
7

when the second race 30 rotates in a direction Y as indicated in FIG. 1A.
Specifically, the rockers 20 are biased to rotate in the first direction A such that
the arms 24 engage the pockets 34 of the second race 30. This engagement by
the rockers 20 rotationally fixes the first race 12 and the second race 30 together.
Disengagement of the rockers 20 to the second race 30 occurs when the first
race 12 in the direction Y or when the second race 30 rotates in the direction X.
The inner surface 32 of the second race 30 urges the rockers 20 to rotate in a
direction opposite to the first direction A, and the arms 24 move out of the
pockets 34 of the second race 30. This disengagement of the rockers 20 allows
the first race 12 and the second race 30 to rotate freely with respect to one
another.
[0036] FIG. 1B illustrates a selectable rocker one-way clutch 50, or
selectable clutch 50. The selectable clutch 50 is substantially identical to the
clutch 10, however, the rockers 20 and slots 18 are oriented in an opposite
direction to the rockers 20 and slots 18 in the clutch 10. Specifically, the biasing
member 26 engages the arm 24 and urges the rocker to rotate in a second
direction B. The second direction B is rotationally opposite to the first direction A.
In the present example the second direction B is illustrated as rotationally
counter-clockwise, but it should be appreciated that the rockers 20, slots 18, and
biasing members 26 may be oriented in an opposite direction such that the
rotation of the second direction A is clockwise so long as the rockers 20, slots 18,
and biasing members 26 of the clutch 10 are similarly re-oriented such that the
8

rockers 20 of the clutch 10 are biased in a direction opposite to the rockers 20 of
the selectable clutch 50.
[0037] The selectable clutch 50 further includes a selector ring 54. The
selector ring 54 is disposed between the first race 12 and the second race 30
and is concentric to the first race 12. The selector ring 54 includes a plurality of
tabs 56 that extend in an axial direction relative to the selectable clutch 50. The
selector ring 54 is rotationally moveable by an actuator (not shown) between a
first position and a second position. When the selector ring 54 is in the first
position, the tabs 56 engage the rockers 20 and prevent the rockers 20 from
rotating into pockets 34. The first position is illustrated in FIG. 1B. When the
selector ring 54 is in the second position, the tabs 56 do not engage the rockers
20 and the rockers 20 are allowed to rotate unimpeded.
[0038] Torque is transmitted through the selectable clutch 50 in a
manner similar to the clutch 10. Engagement of the rockers 20 to the second
race 30 occurs when the first race 12 rotates in the direction Y or when the
second race 30 rotates in the direction X. Specifically, when the rockers 20 are
biased to rotate in the second direction B such that the arms 24 engage the
pockets 34 of the second race 30. This engagement by the rockers 20
rotationally fixes the first race 12 and the second race 30 together.
Disengagement of the rockers 20 from the second race 30 occurs when the first
race 12 rotates in the direction X or when the second race 30 rotates in the
direction Y. The inner surface 32 of the second race 30 urges the rockers 20 to
rotate in a direction opposite to the second direction B, and the arms 24 move
9

out of the pockets 34 of the second race 30. This disengagement by the rockers
20 allows the first race 12 and the second race 30 to rotate freely with respect to
one another. When the selector ring 54 is moved to the first position, as noted
above, the tabs 56 prevent the rockers 20 from rotating to engage the second
race 30. The selector ring 54 thereby prevents transmission of torque through
the selectable clutch 50 irrespective of the relative movements between the first
race )?. and the second race 30. essentially allowing the first race 12 and the
second race 30 to rotate relative to one another unimpeded.
[0039] Turning now to FIG. 2, a first clutch assembly 100 employing
the clutch 10 and the selectable clutch 50 is illustrated, in accordance with an
embodiment of the present invention. The clutch 10 is disposed axially adjacent
to the selectable clutch 50. The first race 12 of the clutch 10 is rotationally fixed
to the first race 12 of the selectable clutch 50 forming an inner race 102.
[0040] The second race 30 of the clutch 10 is rotationally fixed to the
second race 30 of the selectable clutch 50 forming an outer race 104. The inner
race 102 is coupled to a first component 106 and the outer race 104 is coupled to
a second component 108. The clutch 10 and the selectable clutch 50 are
oriented within the first clutch assembly 100 such that the rockers 20 of the clutch
10 are oriented opposite to the rockers 20 of the selectable clutch 50.
Specifically, arrow 1A-1A and arrow 1B-1B correspond to the views in FIG.'s 1A
and lo, respectively.
[0041] The rockers 20 of the clutch 10 are disposed axially adjacent to
the rockers 20 of the selectable clutch 50. In the example provided the rockers
10

20 of the clutch 10 and the rockers 20 of the selectable clutch 50 are aligned with
one another axially, however, it should be appreciated that the rockers 20 may
be positioned out of alignment axially to one another. Additionally, the pockets
34 of the clutch 10 and the pockets 34 of the selectable clutch 50 may be aligned
to form a single pocket 110, or alternatively remain discrete separate pockets.
«0042] During operation of the first clutch assembly 100, one or both of
the (irst component 106 and the second component 108 are rotatable.
Additionally, one of the first component 106 and the second component 108 may
be fixed from rotation. Torque is transmitted between the first component 106
and the second component 108 when the rockers 20 of the clutch 10 couple the
inner race 12 to the outer race 30 (as shown and described in Fig. 1A) and when
the rockers 20 of the selectable clutch 50 couple the inner race 12 to the outer
race 30 (as shown and described in Fig. 1B). This in turn couples the inner race
102 to the outer race 104. Torque is not transmitted between the first component
106 and the second component 108 when the selector ring 54 is in the first
position and prevents the rockers 20 of the selectable clutch 50 from engaging
the outer race 104. It should be appreciated that the orientations of the clutch 10
and selectable clutch 50 may be reversed to allow for specific directions of torque
transfer and free movement.
[0043] FIG. 3 illustrates a second clutch assembly 200 according to the
principies of the present invention. The second clutch assembly 200 is similar to
the first clutch assembly 100 shown in FIG. 2 in that the second clutch assembly
200 includes the clutch 10 coupled with the selectable clutch 50. However, in the
11

second clutch assembly 200, the clutch 10 is displaced from the selectable clutch
50. More specifically, the clutch 10 is displaced from the selectable clutch 50 in
an axial direction and in a radial direction, though it should be appreciated that
any configuration of displacement may be employed.
[0044] The first race 12 of the clutch 10 is coupled to the first race 12 of
the selectable clutch 50 by a coupling 210. The coupling 210 may be any
assembly operable to transmit torque between the clutch 10 and the selectable
clutch 50, such as, for example, a gear box having pinions or bevel gears. The
second race 30 of the clutch 10 is coupled to a first component 212, which is
preferably a shaft. The second race 30 of the selectable clutch 50 is coupled to a
second component 214. The first and second components 212, 214 are both
preferably shafts, though various other devices may be employed. Additionally,
the first component 212 and the second component 214 may either be rotatable
or fixed. Torque is transmitted through the second clutch assembly 200 in a
manner substantially similar to that of the first clutch assembly 100 in FIG. 2.
Alternate embodiments of the second clutch assembly 200 that vary the
connections between the races 12, 30 of the clutches 10, 50 may be employed
without departing from the scope of the present invention. For example, the first
component 212 may be coupled to the first race 12 of the clutch 10, or the
second component 214 may be coupled to the first race 12 of the selectable
clutch 50. Additionally, the coupling 210 may extend between the second race
30 of the clutch 10 and the second race 30 of the selectable clutch 50, or extend
12

between one of the races 12 of the clutches 10, 50 to one of the race 30 of the
clutches 10, 50.
[0045] FIG. 4 illustrates a third clutch assembly 300 according to the
principles of the present invention. The third clutch assembly 300 includes a first
race 302, a second race 304, and a third race 306 substantially similar to the
second race 30 of the clutch 10 illustrated in FIG. 1A. The second race 304 is
disposed radially outward of the first race 302 and is concentric with the first race
302. The third race 306 is disposed radially outward of the second race 304 and
is also concentric with the first race 302.
[0046] The first race 302 is substantially similar to the first race 12 of
the ciuich 10 illustrated in FIG. 1A and includes an outer surface 303, a plurality
of recesses 305 formed in the outer surface 303, and a plurality of slots 307
formed on the outer surface 303 and disposed adjacent to the recesses 305
[0047] The second race 304 includes an inner surface 308 and an
outer surface 310. A plurality of pockets 312 are formed on the inner surface 308
and are spaced annularly around the inner circumference of the second race
304. A plurality of recesses 314 are formed on the outer surface 310 and are
spaced annularly around the outer circumference of the second race 304. A
plurality of slots 316 are also formed in the outer surface 310 and are spaced
annularly around the outer circumference of the second race 304. The slots 316
are disposed adjacent to the recesses 314.
[0048] The third race 306 is substantially similar to the second race 30
of the clutch 10 illustrated in FIG. 1A and includes an inner surtace 317. A
13

plurality of pockets 319 are formed on the inner surface 317 and are spaced
annularly around the inner circumference of the third race 306.
[0049] The third clutch assembly 300 further includes a plurality of first
rockers 318. The first rockers 318 are substantially similar to the rockers 20 of
the clutch 10 and selectable clutch 50 illustrated in FIG.'s 1A and 1B. The first
rockers 318 include a body 321 and an arm 323. The first rockers 318 are
pivotally connected to the outer surface 303 of the first race 302 such that for
each first rocker 318, the body 321 fits within a recess 305, and the arm 323
extends over an adjacent slot 307. As will be described in further detail below,
the rockers 318 are designed to selectively engage and disengage the second
race 304 to transmit torque through the third clutch assembly 300.
[0050] A plurality of first biasing members 320 are disposed within the
slots 307. The biasing members 320 are substantially similar to the biasing
members 26 of the clutch 10 in FIG. 1A. The biasing members 320 engage the
arm 323 and urge the rocker 318 to rotate in a first direction C. In the present
example the first direction C is illustrated as rotationally clockwise, but it should
be appreciated that the rockers 318, slots 307, and biasing members 320 may be
oriented in an opposite direction such that the rotation in the first direction C is
counter-clockwise.
[0051] The third clutch assembly 300 further includes a plurality of
second rockers 324. The plurality of second rockers 324 are substantially similar
to the rockers 20 of the clutch 10 and selectable clutch 50 in FIG.'s 1A and 1B.
The second rockers 324 include a body 325 and an arm 327. The second
14

rockers 324 are pivotally connected to the outer surface 310 of the second race
304 such that for each second rocker 324, the body 325 fits within a recess 314,
and the arm 327 extends over an adjacent slot 316. The second rockers 324 are
oriented in an opposite direction to the first rockers 318. As will be described in
further detail below, the second rockers 324 are designed to selectively engage
and disengage the third race 306 to transmit torque through the third clutch
assembly 300.
[0052] A plurality of second biasing members 326 are disposed within
the slots 316. The biasing members 326 are substantially similar to the biasing
members 26 of the clutch 10 in FIG. 1A. The biasing members 326 engage the
arm 327 and urge the second rocker 324 to rotate in a second direction D. In the
present example the second direction D is illustrated as rotationally counter-
clockwise, but it should be appreciated that the second rockers 324, slots 316,
and biasing members 326 may be oriented in an opposite direction such that the
rotation in the second direction D is clockwise so long as the second rockers 324,
slots 316, and biasing members 326 are oriented opposite to the first rockers
318, slots 18, and biasing members 320.
[0053] The third clutch assembly 300 further includes a selector ring
330. I he selector ring 330 is substantially similar to the selector ring 54 of the
selectable clutch 50 in FIG. 1B. The selector ring 330 is disposed between the
second race 304 and the third race 306 and is concentric with the first race 302.
The selector ring 330 includes a plurality of tabs 332 that extend in an axial
direction relative to the third clutch assembly 300. The selector ring 330 is
15

rotationally moveable by an actuator (not shown) between a first position and a
second position. When the selector ring 330 is in the first position, the tabs 332
are positioned between the arms 327 and the third race 306 and thereby prevent
the second rockers 324 from rotating and engaging the recesses 319 in the third
race 306. When the selector ring 330 is in the second position, the tabs 332 are
not between the arms 327 and the third race 306 and therefore the second
rockers 324 are allowed to move unimpeded. The second position of the
selector ring 330 is illustrated in FIG. 4.
[0054] Torque is transmitted through the third clutch assembly 300
when the first race 302 and second race 304 are rotationally fixed together by the
first rockers 318. Engagement of the first rockers 318 to the second race 304
occurs when the first race 302 rotates in the direction X or when the second race
304 rotates in the direction Y or remains stationary. Specifically, the first rockers
318 are biased to rotate in the first direction C such that the arms 323 engage the
pockets 312 of the second race 304. This engagement by the first rockers 318
rotationally fixes the first race 302 and the second race 304. Disengagement of
the first rockers 318 to the second race 304 occurs when the first race 302
rotates in the direction Y or when the second race 304 rotates in the direction X.
Tiie inner surface 308 of the second race 304 urges the first rockers 318 to rotate
in a direction opposite to the first direction C, and the arms 323 move out of the
pockets 312 of the second race 304. This disengagement by the first rockers
318 allows the first race 302 and the second race 304 to rotate freely with
respect to one another.
16

[0055] Torque is also transmitted through the third clutch assembly
300 when the second race 304 and the third race 306 are rotationally fixed
together by the second rockers 324. Engagement of the second rockers 324 to
the third race 306 occurs when the second race 304 rotates in the direction Y or
when The third race 306 rotates in the direction X. Specifically, the second
rockers 324 are biased to rotate in the second direction D such that the arms 327
engage the pockets 319 of the third race 306. This engagement by the second
rockers 324 rotationally fixes the second race 304 and the third race 306
together. Disengagement of the second rockers 324 to the third race 306 occurs
when the second race 304 rotates in the direction X or when the third race 306
rotates in the direction Y. Specifically, the inner surface 319 of the third race
urges the second rockers 324 to rotate in a direction opposite to the second
direction D such that the arms 327 move out of the pockets 319 of the third race
306. This disengagement by the second rockers 324 allows the second race 304
and the third race 306 to rotate freely with respect to one another. When the
selector ring 330 is moved to the first position, as noted above, the tabs 332
prevent the second rockers 324 from rotating to engage the third race 306. The
selector ring 330 thereby prevents transmission of torque between the second
race 304 and the third race 306.
[0056] The third clutch assembly 300 allows torque to be selectively
transmitted to a first component (not shown), a second component (not shown)
or a third component (not shown). These components may be coupled to the
first race 302, the second race 304, and/or the third race 306 in any combination.
17

These; components (not shown) may be rotatable or fixed. For example, a first
shaft may be coupled to the first race 302, and a second shaft coupled to the
second race 304, and a third shaft coupled to the third race 306. Torque is
transferable between the first and second shafts and between the second and
third shafts using the third clutch assembly 300.
[0057] The description of the invention is merely exemplary in nature
and variations that do not depart from the gist of the invention are intended to be
within the scope of the invention. Such variations are not to be regarded as a
departure from the spirit and scope of the invention.
18

CLAIMS
What is claimed is:
1. A device for transmitting torque between a first component and a
second component, the device comprising:
a first race coupled to the first component;
a second race coupled to the second component, the second race
disposed concentrically with the first race;
a first rocker pivotaliy connected to the first race, the first rocker moveable
to rotationally fix the first race to the second race to transfer torque
therebetween;
a second rocker pivotaliy connected to the first race, the second rocker
disposed axially adjacent to the first rocker, the second rocker moveable to
rotationally fix the first race to the second race to transfer torque therebetween;
and
a selector ring disposed between the first race and the second race, the
selector ring moveable to engage the first rocker to prevent the first rocker from
engaging the second race.
2. The device of claim 1 wherein the first rocker engages the second race
when rotated in a first direction.
19

3. The device of claim 2 wherein the second rocker engages the second
race when rotated in a second direction.
4. The device of claim 3 wherein the first direction is opposite to the
second direction.
5. The device of claim 4 wherein the second race has an inner surface
forming an at least one pocket, and the first rocker and the second rocker are
moveable to engage the first pocket to transmit torque between the first race and
the second race.
6. The device of claim 4 wherein the second race has an inner surface
forming, a first pocket radially adjacent to a second pocket, and the first rocker is
moveable to engage the first pocket and the second rocker is moveable to
engage the second pocket.
7. The device of claim 6 wherein the first rocker has a first extending arm
biased to pivot towards the second race in the first direction, the first extending
arm engaging the first pocket to rotationally fix the first race to the second race to
transmit torque therebetween.
20

8. The device of claim 7 wherein the first extending arm moves out of the
first pocket when the first extending arm is rotated in the second direction thereby
not transmitting torque between the first race and second race.
9. The device of claim 8 wherein the second rocker has a second
extending arm biased to pivot towards the second race in the second direction,
the second extending arm engaging the second pocket to rotationally fix the first
race to the second race to transmit torque therebetween.
10. The device of claim 9 wherein the second extending arm moves out of
the second pocket when the second extending arm is rotated in the second
direction thereby not transmitting torque between the first race and second race.
11. The device of claim 6 wherein the first race includes a first inner
portion and a second inner portion, the first inner portion having the first rocker,
the second inner portion having the second rocker.
12. The device of claim 11 wherein the second race includes a first outer
portion and a second outer portion, the first outer portion having the first pocket
formed thereon, the second outer portion having the second pocket formed
thereon.
21

13. The device of claim 12 wherein the first inner portion is connected to
the second inner portion by an at least one connector.
14. The device of claim 12 wherein the first inner portion is connected to
the second outer portion by an at least one connector.
22

15. A device for transmitting torque between a first component and a
second component, the device comprising:
a first race;
a second race disposed radially outward of the first race, the second race
having a first pocket;
a third race disposed radially outward of the second race, the third race
having a second pocket;
a first rocker pivotally connected to the first race, the first rocker moveable
to engage the first pocket to rotationally fix the first race to the second race to
transfer torque between the first component and the second component;
a second rocker pivotally connected to the second race, the second rocker
moveable to engage the second pocket to rotationally fix the second race to the
third race to transfer torque between the first component and the second
component; and
a selector ring disposed between the second race and the third race, the
selector ring moveable to engage the second rocker to prevent the second rocker
from engaging the second pocket.
16. The device of claim 15 wherein the first rocker engages the second
race when rotated in a first direction.
17. The device of claim 16 wherein the second rocker engages the
second race when rotated in a second direction.
23

24
18. The device of claim 17 wherein the first direction is opposite to the
second direction.

A device for transmitting torque between a first component and a second
component is provided. The device includes a first race coupled to the first
component and a second race coupled to the second component. The second
race is disposed concentrically with the first race. A first rocker is pivotally
connected to the first race and is moveable to rotationally fix the first race to the
second race to transfer torque therebetween. A second rocker is pivotally
connected to the first race and is disposed axially adjacent to the first rocker.
The second rocker is moveable to rotationally fix the first race to the second race
to transfer torque therebetween. A selector ring is disposed between the first
race and the second race. The selector ring is moveable to engage the first
rocker to prevent the first rocker from engaging the second race.

Documents:

00259-kol-2008-abstract.pdf

00259-kol-2008-claims.pdf

00259-kol-2008-correspondence others.pdf

00259-kol-2008-description complete.pdf

00259-kol-2008-drawings.pdf

00259-kol-2008-form 1.pdf

00259-kol-2008-form 2.pdf

00259-kol-2008-form 3.pdf

00259-kol-2008-form 5.pdf

00259-kol-2008-priority document.pdf

259-KOL-2008-(28-05-2013)-ABSTRACT.pdf

259-KOL-2008-(28-05-2013)-ANNEXURE TO FORM 3.pdf

259-KOL-2008-(28-05-2013)-CLAIMS.pdf

259-KOL-2008-(28-05-2013)-CORRESPONDENCE.pdf

259-KOL-2008-(28-05-2013)-DESCRIPTION (COMPLETE).pdf

259-KOL-2008-(28-05-2013)-DRAWINGS.pdf

259-KOL-2008-(28-05-2013)-FORM-1.pdf

259-KOL-2008-(28-05-2013)-FORM-2.pdf

259-KOL-2008-(28-05-2013)-OTHERS.pdf

259-KOL-2008-(28-05-2013)-PA.pdf

259-KOL-2008-(28-05-2013)-PETITION UNDER RULE 137.pdf

259-KOL-2008-ASSIGNMENT.pdf

259-KOL-2008-CORRESPONDENCE OTHERS 1.1.pdf

259-KOL-2008-CORRESPONDENCE OTHERS-1.2.pdf

259-kol-2008-form 18.pdf

abstract-00259-kol-2008.jpg


Patent Number 260330
Indian Patent Application Number 259/KOL/2008
PG Journal Number 17/2014
Publication Date 25-Apr-2014
Grant Date 23-Apr-2014
Date of Filing 14-Feb-2008
Name of Patentee GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Applicant Address 300 GM RENAISSANCE CENTER DETROIT, MICHIGAN
Inventors:
# Inventor's Name Inventor's Address
1 SCOTT H. WITTKOPP 6189 OAKHURST DRIVE YPSILANTI, MICHIGAN 48197
2 CLINTON E. CAREY 215 RIVER VIEW AVENUE MONROE, MICHIGAN 48162
3 JAMES M. HART 16011 HAGGERTY BELLEVILLE, MICHIGAN 48111
PCT International Classification Number F16D41/12; F16D41/00; F16D41/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11/681,803 2007-03-05 U.S.A.