Torsion damping device for friction plate having a flexible center

Claim 2

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means being disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said support member and said web, a clip forming an independent U-shaped member engaged radially on the support member and the annular guide plate which said support member flanks.

Claim 3

A torsion damping device comprising two coxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, a first coaxial part comprising a web and a second coaxial part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction assembly adapted to operate between said parts for at least part of said range of angular clearance, said friction assembly being disposed at the outer periphery of one of said annular guide plates, said friction assembly including two annular support members one axially coupled to each side of said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said annular support members and said web, said annular support members are coupled axially to said one annular guide plate by at least one clip, said axially acting resilient means acting between said clip and said annular support members to urge the same towards said one annular guide plate, friction means carried by each of said annular support members and disposed axially on each side of said one annular guide plate, said one annular guide plate having an outer face corresponding to one of said sides, one of said annular support members which is disposed on the side of the outer face of said one annular guide plate being bordered by a peripherial reinforcing edge.

Claim 4

A torsion damping device comprising two coxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, a first coaxial part comprising a web and a second coaxial part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction assembly adapted to operate between said parts for at least part of said range of angular clearance, said friction assembly being disposed at the outer periphery of one of said annular guide plates, said friction assembly including two annular support members one axially coupled to each side of said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said annular support members and said web, said annular support members are coupled axially to said one annular guide plate by at least one clip, said axially acting resilient means acting between said clip and said annular support members to urge the same towards said one annular guide plate, friction means carried by each of said annular support members and disposed axially on each side of said one annular guide plate, said one annular guide plate having an outer face corresponding to one of said sides, one of said annular support members which is disposed on the side of the outer face of said one annular guide plate being bordered by a peripherial reinforcing edge.

Claim 5

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, and friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means being disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means between said support member and said web, the annular support member being coupled axially to said one annular guide plate by at least one clip, said axially acting resilient means acting between said clip and said support member to urge the same towards said one annular plate guide, and radial holding means between the clip and said annular support member.

Claim 6

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, and friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means being disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means between said support member and said web, the annular support member being coupled axially to said one annular guide plate by at least one clip, said axially acting resilient means acting between said clip and said support member to urge the same towards said one annular plate guide, and radial holding means between the clip and said annular support member.

Claim 7

A device as claimed in claim 3, wherein said radial holding means comprises a lug radially cut out from said clip and engaged in a recess carried by said support member.

Claim 8

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said support member and said web, the annular support member is coupled axially to said one annular guide plate by at least one clip, and the said axially acting resilient means acting between said clip and said support member to urge the same towards said one annular plate guide, and said clip being locked circumferentially on an annular support member by radial engagement in a notch along the peripheral edge of the support member.

Claim 9

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said support member and said web, the annular support member is coupled axially to said one annular guide plate by at least one clip, and the said axially acting resilient means acting between said clip and said support member to urge the same towards said one annular plate guide, and said clip being locked circumferentially on an annular support member by radial engagement in a notch along the peripheral edge of the support member.

Claim 10

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said support member and said web, the resilient means interposed between said parts comprising tangentially disposed springs, and at least one of said annular support members having at least one radial part between two successive springs.

Claim 11

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other, within predetermined range of angular clearance, including a first part comprising a web and second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, friction means adapted to operate between said parts for at least part of said range of angular clearance, said friction means disposed at the outer periphery of one of said annular guide plates, at least a part of said friction means being carried by an annular support member axially coupled to said one annular guide plate in cooperation with axially acting resilient means, drive means being provided between said support member and said web, the resilient means interposed between said parts comprising tangentially disposed springs, and at least one of said annular support members having at least one radial part between two successive springs.

Claim 12

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, including a first part comprising a web and a second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, an independently mounted friction subassembly disposed at the outer periphery of and engaged radially with one of said guide plates, said friction subassembly comprising at least one annular support member on one side of said one guide plate, friction means carried by said one side of said guide plate for contact with said support member, said friction subassembly further comprising axially acting resilient means urging said support member towards said one guide plate, and drive means between said support member and said web.

Claim 13

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, including a first part comprising a web and a second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, an independently mounted friction subassembly disposed at the outer periphery of and engaged radially with one of said guide plates, said friction subassembly comprising at least one annular support member on one side of said one guide plate, friction means carried by said one side of said guide plate for contact with said support member, said friction subassembly further comprising axially acting resilient means urging said support member towards said one guide plate, and drive means between said support member and said web.

Claim 14

A device as claimed in claim 7, wherein the axially acting resilient means are integrally formed with said support member.

Claim 15

A device as claimed in claim 7, wherein the axially acting resilient means form at least one independent part.

Claim 16

A device as claimed in claim 7, wherein the drive means provided between said web and said support member comprise an element projecting from such a support member and engaged in a recess in said web.

Claim 17

A friction clutch plate comprising a torsion damping device, one said coaxial part being fast with a hub and the other said coaxial part carrying a friction disc, wherein said torsion damping device being constructed in accordance with claim 7.

Claim 18

A friction clutch plate as claimed in claim 11 in which the friction disc is adjacent the other of said annular guide plates of the torsion damping device and said annular support member carrying said friction means is associated with said one annular guide plate.

Claim 19

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, including a first part comprising a web and a second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, an independently mounted friction subassembly disposed at the at the outer periphery of and engaged radially with one of said guide plates, said friction subassembly comprising at least one annular support member on one side of said one guide plate, friction means carried by said one side of said guide plate for contact with said support member, said friction subassembly further comprising axially acting resilient means urging said support member towards said one guide plate, and drive means between said support member and said web, said friction subassembly further comprising a clip including said axially acting resilient means acting between the rest of said clip and said support member.

Claim 20

A torsion damping device comprising two coaxial parts mounted to rotate with respect to each other within a predetermined range of angular clearance, including a first part comprising a web and a second part comprising two annular guide plates disposed one on each side of said web, cross-pieces interconnecting said annular guide plates, a circumferential array of resilient means circumferentially interposed between said parts, an independently mounted friction subassembly disposed at the at the outer periphery of and engaged radially with one of said guide plates, said friction subassembly comprising at least one annular support member on one side of said one guide plate, friction means carried by said one side of said guide plate for contact with said support member, said friction subassembly further comprising axially acting resilient means urging said support member towards said one guide plate, and drive means between said support member and said web, said friction subassembly further comprising a clip including said axially acting resilient means acting between the rest of said clip and said support member.

Claim 21

A device according to claim 13, wherein a second annular support member is provided flanking said one guide plate, second friction means carried by the other side of said one guide plate for contact with said second support member.

Claim 22

A device according to claim 13, wherein said axially acting resilient means is integrally formed with said one support member and is crimped to a second support member disposed on the other side of said guide plate with second friction means therebetween.

Claim 23

A device as claimed in claim 14, wherein the two annular support members are axially coupled to said one annular guide plate by said clip, which forms part of said friction subassembly and includes said axially acting resilient means.

Claim 24

A device as claimed in claim 13, wherein the axially acting resilient means comprise a deformed portion of said clip.

Claim 25

A device as claimed in claim 13, wherein the axially acting resilient means are formed by a part cut from said clip.

Claim 26

A device as claimed in claim 13, wherein said drive means are provided between said web and said support member disposed on the side of said one annular guide plate and comprise a boss projecting from the web and engaged in a recess in said web.

Claim 27

A device as claimed in claim 13, wherein there are provided a plurality of said clips regularly annularly spaced about the axis of said device.

Claim 28

A device as claimed in claim 14, wherein at least one of the annular support members is bordered on its outer periphery by a raised edge which extends axially at right angles to the peripheral edge of said one annular guide plate, beyond the same.