JP2004116574A - Clutch disk and clutch disk assembly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clutch disk having a cushioning function whereby a friction facing is fixed and a dimension along the axial direction can be reduced without the usage of a rivet. <P>SOLUTION: This clutch disk 23 of the clutch disk assembly 1 to which the torque is transmitted from a flywheel 31 is provided with a pair of friction facings 15, and a cushioning plate 17. The cushioning plate 17 is provided with a cushioning piece 16 attached on an inside of a pair of the friction facings 15 along the axial direction and deformable along the axial direction, and is fixed on a clutch plate 7 of the clutch disk assembly 1. The cushioning plate 17 is equipped with claw parts 21a and 22a extending from the cushioning piece 16 and fitted on an edge of the friction facing 15 in order to fix the friction facing 15 on the cushioning piece 16. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a clutch disc and a clutch disc assembly.
[0002]
[Prior art]
The clutch disk assembly is for transmitting torque between the input side rotary body and the output side rotary body, and generally includes a clutch disk having friction facing. When the clutch disk is pressed against the flywheel on the engine side by the pressure plate of the clutch cover assembly, the clutch disk is sandwiched between the flywheel and the pressure plate, and the torque of the flywheel on the engine side is input to the input side via the clutch disk. Entered on the plate. This torque is transmitted to the output side hub via the damper portion, and is output to the output side transmission. As described above, when the clutch disc is pressed against the flywheel, the clutch is connected and torque is transmitted.
[0003]
The clutch disk generally includes a cushioning plate for reducing an impact when the clutch is engaged. The cushioning plate usually has 6 to 9 cushioning pieces arranged in a circumferential direction. Each cushioning piece has a step in the shape of a wave in the circumferential direction, and is elastically deformable when the clutch disc is pressed against the flywheel. This elastic deformation acts as a cushion, and the shock at the time of clutch engagement is reduced. Further, the friction facing is an annular facing, and is attached to both side surfaces of each cushioning piece by rivets (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-11-182576
[0005]
[Problems to be solved by the invention]
However, the use of such rivets places certain limits on the reduction of the axial dimensions of the clutch disc.
An object of the present invention is to fix a friction facing without using rivets in a clutch disc having a cushioning function and to reduce an axial dimension.
[0006]
[Means for Solving the Problems]
A clutch disk according to a first aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a pair of friction facings and a cushioning plate. The pair of friction facings are arranged to face each other in the axial direction, and can be connected by being pressed against the rotating body. The cushioning plate has a cushioning portion mounted axially inside the pair of friction facings and elastically deformable in the axial direction, and is fixed to another member of the clutch disk assembly. The cushioning plate has a claw portion extending from the cushioning portion and being caulked to an edge of the friction facing to fix the friction facing to the cushioning portion.
[0007]
The clutch disc rotates integrally with the rotating body when the friction facing is pressed against the rotating rotating body. When the friction facing is pressed against the rotating body, the friction facing and the rotating body exert forces on each other. At this time, the force is absorbed by the elastic deformation of the cushioning portion of the cushioning plate in the axial direction. In this way, the shock at the time of clutch engagement is reduced.
[0008]
In this clutch disc, the friction facing is fixed to the cushioning plate by the claw portion of the cushioning portion being caulked to the edge of the friction facing. For this reason, it is not necessary to use rivets for connecting the friction facing and the cushioning plate, and the axial size of the clutch disc can be reduced.
A clutch disk according to a second aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a pair of friction facings, a cushioning plate, and a pair of plate members. The pair of friction facings are arranged to face each other in the axial direction, and can be connected by being pressed against the rotating body. The cushioning plate has a cushioning portion disposed axially inside the pair of friction facings and capable of being elastically deformed in the axial direction, and is fixed to another member of the clutch disk assembly. The pair of plate members are respectively disposed between the pair of friction facings and the cushioning portion, are respectively molded and fixed to the friction facings, and are fixed to other members of the clutch disk assembly.
[0009]
In this clutch disk, in particular, a pair of plate members molded and fixed to the friction facing is fixed to another member. Thus, here again, there is no need to connect the friction facings and the cushioning plates, and thus no need to use rivets.
A clutch disk according to a third aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a pair of friction facings and a cushioning plate. The pair of friction facings are arranged to face each other in the axial direction, and can be connected by being pressed against the rotating body. The cushioning plate has a cushioning portion disposed axially inside the pair of friction facings and capable of being elastically deformed in the axial direction, and is fixed to another member of the clutch disk assembly.
[0010]
Each of the pair of friction facings has a plurality of facing pieces arranged in the circumferential direction. The cushioning portion of the cushioning plate includes a plurality of wave-shaped mounting pieces that are arranged side by side in the circumferential direction, alternately folded back in the axial direction, and repeated in the circumferential direction. Each of the mounting pieces has a first mounting part located on one side in the axial direction and a second mounting part located on the other side in the axial direction, and one of the facing pieces is molded and fixed to the outside of the first mounting part in the axial direction. In addition, one of the facing pieces is molded and fixed outside the second mounting portion in the axial direction.
[0011]
In this clutch disk, in particular, the friction facing is fixed to the cushioning plate by fixing the facing pieces to the first and second mounting portions of the cushioning portion. Therefore, again, rivets do not have to be used for connecting the friction facing and the cushioning plate.
A clutch disk according to a fourth aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a pair of friction facings and a cushioning plate. The pair of friction facings are arranged to face each other in the axial direction, and can be connected by being pressed against the rotating body. The cushioning plate has a cushioning portion disposed axially inside the pair of friction facings and capable of being elastically deformed in the axial direction, and is fixed to another member of the clutch disk assembly. The cushioning portion of the cushioning plate has a first mounting portion located on one axial side and a second mounting portion located on the other axial side. One of the friction facings is bonded to the first mounting portion, and the other of the friction facings is bonded to the second mounting portion.
[0012]
In this clutch disk, in particular, the friction facing is fixed to the cushioning plate by being adhered to the first and second mounting portions of the cushioning portion. Therefore, again, rivets do not have to be used for connecting the friction facing and the cushioning plate.
A clutch disk according to a fifth aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a pair of friction facings and a cushioning plate. The pair of friction facings are arranged to face each other in the axial direction, and can be connected by being pressed against the rotating body. The cushioning plate has a cushioning portion disposed axially inside the pair of friction facings and elastically deformable in the axial direction, and is fixed to another member of the clutch disk assembly.
[0013]
The cushioning portion of the cushioning plate has a first mounting portion located on one axial side and a second mounting portion located on the other axial side. Burring projections are formed on the first and second mounting portions. One of the friction facings is molded and fixed to the burring protrusion of the first mounting portion, and the other of the friction facing is molded and fixed to the burring protrusion of the second mounting portion.
[0014]
In this clutch disk, in particular, the friction facing is fixed to the cushioning plate by being molded and fixed to the burring projections of the first and second mounting portions. Therefore, again, rivets do not have to be used for connecting the friction facing and the cushioning plate.
A clutch disk according to a sixth aspect is a clutch disk of a clutch disk assembly to which torque is transmitted from a rotating body, and includes a friction facing and a cushioning plate. The friction facing has a plurality of facing pieces arranged side by side in the circumferential direction, and can be connected by being pressed against the rotating body. The cushioning plate has a plurality of mounting pieces on which a plurality of facing pieces are mounted one by one. The plurality of mounting pieces are configured such that adjacent mounting pieces are alternately arranged at a first position on one axial side and a second position on the other axial side.
[0015]
In this clutch disk, in particular, the friction facing is fixed to the cushioning plate by attaching a plurality of facing pieces to the respective mounting pieces. Therefore, again, rivets do not have to be used for connecting the friction facing and the cushioning plate.
A clutch disk assembly according to a seventh aspect is a clutch disk assembly to which torque is transmitted from a rotating body, and includes a clutch disk and a hub. The clutch disk is one according to any one of claims 1 to 6. The hub receives the torque from the clutch disk.
[0016]
The clutch disc assembly rotates integrally with the rotating body when the friction facing of the clutch disc is pressed against the rotating rotating body. Thus, the torque input from the rotating body is transmitted to the hub via the clutch disk assembly. When the friction facing is pressed against the rotating body, the friction facing and the rotating body exert forces on each other. At this time, the force is absorbed by the elastic deformation of the cushioning portion of the cushioning plate in the axial direction. In this way, the shock at the time of clutch engagement is reduced.
[0017]
In this clutch disc assembly, the friction facing is fixed to the cushioning plate by, for example, the claw portion of the cushioning portion being caulked to the edge of the friction facing, so that rivets are not used for connecting the friction facing and the cushioning plate. Thus, the axial dimension of the clutch disc can be reduced.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
1 and 2 show a clutch disk assembly 1 according to an embodiment of the present invention.
This clutch disc assembly 1 is used for a clutch of an automobile, and is a device for transmitting torque from a flywheel (rotating body) 31 on the engine side to a main drive shaft 32 on the transmission side. In FIG. 1, OO is the rotation axis of the clutch disc assembly 1.
[0019]
At the center of the clutch disk assembly 1, a spline hub 2 connected to a main drive shaft 32 is arranged. The spline hub 2 has a spline hole 2a at the center thereof that meshes with spline teeth (not shown) of the main drive shaft 32. Further, the spline hub 2 is integrally formed with a flange portion 3 protruding outward.
[0020]
As shown in FIG. 2, the flange portion 3 is provided with four stop pin notches 3a at predetermined intervals on an outer peripheral portion thereof, and a window hole 3b is arranged on the inner peripheral side of these notches 3a. Have been. Each window hole 3b accommodates a torsion spring 4.
A pair of generally disc-shaped retaining plates 6 and a clutch plate 7 (other members of the clutch disc assembly 1) are arranged on the outer peripheral side of the spline hub 2 so as to face each other with the flange portion 3 interposed therebetween. I have. Both plates 6 and 7 are fitted to the spline hub 2 so as to be relatively rotatable at the inner peripheral portion. The retaining plate 6 and the clutch plate 7 are integrally connected by a stop pin 8 at the outer peripheral portion. The stop pin 8 keeps the axial length between the retaining plate 6 and the clutch plate 7, and is abutted against the stop pin notch 8 a of the flange portion 3 from the circumferential direction. Further, the relative rotation angle between the clutch plate 7 and the flange 3 is regulated.
[0021]
A plurality of cushioning pieces (mounting pieces) 16 constituting the cushioning plate 17 are fixed to the outer peripheral portion of the clutch plate 7 by rivets 9. The cushioning piece 16 is a wave-shaped plate member that is folded back in the axial direction and repeated in the circumferential direction, and is elastically deformable in the axial direction. A pair of friction facings 15 are disposed on both sides in the axial direction of the cushioning plate 17 so as to face each other in the axial direction and can be connected to the flywheel 31 by being pressed against the flywheel 31.
[0022]
As shown in FIG. 3, each cushioning piece 16 is located on one side in the axial direction and is provided with the first mounting portion 21 to which the friction facing 15 disposed on the one side is mounted, and the other side is located on the other side in the axial direction. And a second mounting portion 22 to which the friction facing 15 disposed on the side is mounted. The first mounting portion 21 has a claw portion 21a which is caulked to a notch portion 15a (see FIG. 5) provided in the friction facing 15 on the input side. Similarly, the second mounting portion 22 has a claw portion 22a which is caulked to a notch portion 15b (see FIG. 4) provided in the friction facing 15 on the output side.
[0023]
Specifically, the notch portions 15a are formed on the outer peripheral edge and the inner peripheral edge of each first mounting portion 21, respectively, and the notch portions 15b are formed on the outer peripheral edge and the inner peripheral edge of each second mounting portion 22, respectively. Both have inclined surfaces that become deeper toward the outside in the radial direction. As shown in FIGS. 4 and 5, the claws 21 a and 22 b extend axially outward from both ends in the radial direction of the cushioning piece 16 so as to be in close contact with the notches 15 a and 15 b of each friction facing 15. It is bent.
.
[0024]
A window hole 6a is formed in the retaining plate 6 and a window hole 7a is formed in the clutch plate 7 corresponding to the window hole 3b of the flange portion 3. The window holes 6a and 7a are cut and raised so as to cover the torsion spring 4 from the outside, and the torsion spring 4 is housed therein. Both ends of the torsion spring 4 abut against both ends of the windows 6 b of the flanges 3 and the plates 6 and 7, and transmit torque between the plates 6 and 7 and the flange 3.
[0025]
An annular cone spring 11, a friction plate 12, and a friction washer 13 are arranged between the inner peripheral portion of the flange portion 3 and the inner peripheral portion of the clutch plate 7 from the engine side. A friction washer 14 is arranged between the flange 3 and the inner peripheral portion of the retaining plate 6. When these friction washers 13 and 14 slide between the flange portion 3 and the plates 7 and 6, a predetermined frictional force (hysteresis torque) is generated.
[0026]
Next, the operation will be described.
When the pressure plate (not shown) of the clutch cover assembly presses the friction facing 15 toward the flywheel 31 by the clutch operation, the friction facing 15 is pressed against the flywheel 31 and the torque of the flywheel 31 is applied to the friction facing 15. Is entered. The torque is transmitted from the friction facing 15 via the cushioning plate 17 to the clutch plate 7 and the retaining plate 6. This torque is transmitted to the flange portion 3 via the torsion spring 4 and the like, and further output from the spline hub 2 to the main drive shaft 32.
[0027]
The clutch disk assembly 1 transmits torque and reduces torsional vibration. When the torsional vibration is transmitted to the clutch plate 7 and the retaining plate 6, the torsion spring 4 repeats expansion and contraction, and the plates 6 and 7 repeat relative rotation with respect to the spline hub 2. At this time, a hysteresis torque is generated in a sliding portion between the friction washers 13 and 14 and the flange portion 3, and the torsional vibration is attenuated.
[0028]
Here, the friction facing 15 is fixed to the cushioning plate 17 by caulking the claw portions 21 a and 22 b of the cushioning piece 16 into the cutout portions 15 a and 15 b of the friction facing 15. Since no rivets are used to connect the friction facing 15 and the cushioning plate 17, the axial size of the clutch disc 23 can be reduced.
[0029]
[Second embodiment]
FIG. 6 shows a part of the clutch disk 123 according to the second embodiment of the present invention.
Here, a description will be given focusing on differences from the above embodiment.
The clutch disk 123 includes a pair of friction facings 115, a cushioning plate 117, and a pair of plate members 141.
[0030]
Here, the cushioning plate 117 is an integral annular member in which the inner peripheral portions of the plurality of cushioning pieces 116 are connected. The pair of plate members 141 are disposed between the pair of friction facings 115 and the cushioning plate 117 in the axial direction, respectively, and each have a mold fixing portion 141a that is molded and fixed to the friction facings 115. The mold fixing portion 141 a is an annular portion corresponding to the shape of the friction facing 115, and is in full contact with the friction facing 115. The mold can be fixed by a known method. Further, in the pair of plate members 141, the fixing portion 141 b on the inner peripheral side is fixed to the plate 107 together with the cushioning pieces 116 by the rivets 109.
[0031]
The cushioning portion of the cushioning plate 117 is arranged to be compressible between the pair of plate members 141 in the axial direction. That is, the cushioning portion of the cushioning plate 117 is not fixed to the pair of plate members 141 or the friction facings 115.
In the clutch disk 123, in particular, since the pair of plate members 141 molded and fixed to the friction facing 115 are fixed to the plate 107, it is not necessary to fix the friction facing 115 to the cushioning piece 116. That is, it is not necessary to use rivets for connecting the friction facings 115.
[0032]
[Third embodiment]
FIG. 9 shows a part of the clutch disk 223 according to the third embodiment of the present invention.
Here, description will be made focusing on differences from the above embodiment.
The clutch disk 223 includes a pair of friction facings 215 and a cushioning plate 217.
[0033]
Here, each of the pair of friction facings 215 has a plurality of facing pieces 242 arranged at different positions in the axial direction. The facing pieces 242 of one friction facing 215 and the facing pieces 242 of the other friction facing 215 are arranged alternately in the circumferential direction. That is, the facing pieces 242 having different axial positions are adjacent to each other in the circumferential direction. The cushioning plate 217 has a plurality of cushioning pieces 216 arranged in the circumferential direction. Each cushioning piece 216 has first and second mounting portions 221 and 222 having different axial positions arranged in the circumferential direction. The first and second mounting portions 221 and 222 of each cushioning piece 216 are provided with a plurality of holes 221a and 222a arranged in the radial direction, respectively. One facing piece 242 is molded and fixed on the outside of the first mounting portion 221 of the cushioning plate 217 in the axial direction, with a part of the facing piece 242 on the inside in the axial direction passing through the hole 221a. Similarly, the other facing piece 242 is molded and fixed to the outside of the second mounting portion 222 in the axial direction by partially passing the inside of the facing piece 242 in the axial direction through the hole 222a. Here, the mold can be fixed by a known method.
[0034]
In the present embodiment, as shown in FIG. 11, some of the facing pieces 242 are arranged not only on the outer side in the axial direction but also on the inner side in the axial direction in one of the mounting portions (here, the second mounting portion 222). The shape may be as shown. In this case, the size, shape, and the like of the facing piece 242 in the axial direction are not particularly limited as long as they do not interfere with the other mounting portion (here, the first mounting portion 221) in the circumferential direction.
[0035]
In the clutch disk 223, the friction facing 215 is fixed to the cushioning plate 217 by molding the facing piece 242 to the first and second mounting portions 221 and 222. Therefore, it is not necessary to use rivets for connecting the friction facing 215 and the cushioning plate 217.
[0036]
[Fourth embodiment]
FIG. 12 shows a part of the clutch disk 323 according to the fourth embodiment of the present invention.
Here, description will be made focusing on differences from the above embodiment.
The clutch disk 323 includes a pair of friction facings 315 and a cushioning plate 317.
[0037]
Here, one friction facing 315 is bonded to the outside of the first mounting portion 321 in the axial direction, and the other friction facing 315 is bonded to the second mounting portion 322. The bonding can be performed by a known method such as using an adhesive.
In this clutch disk 323, in particular, the friction facing 315 is fixed to the cushioning plate 317 by being bonded to the first and second mounting portions 321 and 322 of the cushioning piece 316. Therefore, it is not necessary to use rivets for connecting the friction facing and the cushioning plate.
[0038]
[Fifth Embodiment]
FIG. 14 shows a part of the clutch disk 423 according to the fifth embodiment of the present invention.
Here, description will be made focusing on differences from the above embodiment.
The clutch disk 423 includes a pair of friction facings 415 and a cushioning plate 417.
[0039]
Here, a plurality of annular burring protrusions 421a and 422a projecting outward in the axial direction are formed on the first and second mounting portions 421 and 422, respectively, and are arranged in the radial direction. One friction facing 415 is molded and fixed to the burring protrusion 421a of the first mounting portion 421, and the other friction facing 415 is molded and fixed to the processing protrusion 422a of the second mounting portion 422. Note that the burring and the mold fixing can be performed by a known method.
[0040]
In this clutch disk 423, in particular, the friction facing 415 is fixed to the cushioning plate 417 by being molded and fixed to the burring protrusions 421 a and 422 a of the first and second mounting portions 421 and 422. Therefore, it is not necessary to use rivets to connect the friction facing 415 and the cushioning plate 417.
[0041]
[Sixth embodiment]
FIG. 16 shows a part of the clutch disk 523 according to the sixth embodiment of the present invention.
Here, description will be made focusing on differences from the above embodiment.
The clutch disk 523 includes a friction facing 515 and a cushioning plate 517.
[0042]
Here, the cushioning plate 517 has a plurality of cushioning pieces 516 to which the facing pieces 542 are mounted one by one. The friction facing 515 has a plurality of facing pieces 542 arranged side by side in the circumferential direction. Each facing piece 542 is molded and fixed to the cushioning piece 516, and covers both sides of the cushioning piece 516 in the axial direction. The plurality of cushioning pieces 516 are arranged in a circumferential direction such that adjacent cushioning pieces 516 are alternately arranged at a first position located on one side in the axial direction and a second position located on the other side in the axial direction. The neck portion is bent every other one (see FIG. 18). In this way, a plurality of cushioning pieces 516 realize cushion characteristics as a whole.
[0043]
In the clutch disk 523, in particular, the friction facing 515 is fixed to the cushioning plate 517 by attaching the plurality of facing pieces 542 to the cushioning pieces 516, respectively. Therefore, it is not necessary to use rivets for connecting the friction facing 515 and the cushioning plate 517.
[0044]
[Other embodiments]
(A) In the second embodiment, a cushioning piece separate from the cushioning piece 116 may be further inserted between the friction facing 115 and the plate member 141 in the axial direction.
(B) In the fourth embodiment, a protrusion may be provided on the inner side in the axial direction of the friction facing 315, and a hole into which the protrusion may be fitted may be provided in the cushioning plate 317. In this case, in the friction facing 315, the protrusion is fitted into the hole, so that the adhesive fixing state to the cushioning plate 317 is reinforced.
[0045]
(C) In the sixth embodiment, the cushioning piece 516 arranged on the flywheel 31 side and the friction facing 515 arranged on the transmission side may be configured as separate members.
[0046]
【The invention's effect】
According to the present invention, the friction facing is fixed to the cushioning plate by, for example, the claw portion of the cushioning portion being caulked to the edge of the friction facing, so that the rivet is not used for coupling the friction facing and the cushioning plate. Thus, the axial dimension of the clutch disc can be reduced.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a clutch disk assembly according to a first embodiment of the present invention.
FIG. 2 is a plan view of the clutch disk assembly according to the first embodiment of the present invention.
FIG. 3 is a partial plan view of the clutch disk according to the first embodiment of the present invention.
FIG. 4 is a sectional view of the clutch disk according to the first embodiment of the present invention.
FIG. 5 is a sectional view of the clutch disk according to the first embodiment of the present invention.
FIG. 6 is a partial plan view of a clutch disk according to a second embodiment of the present invention.
FIG. 7 is a sectional view of a clutch disk according to a second embodiment of the present invention.
FIG. 8 is a sectional view of a clutch disk according to a second embodiment of the present invention.
FIG. 9 is a partial plan view of a clutch disk according to a third embodiment of the present invention.
FIG. 10 is a partial plan view of a clutch disk according to a third embodiment of the present invention.
FIG. 11 is a sectional view of a clutch disk according to a third embodiment of the present invention.
FIG. 12 is a partial plan view of a clutch disk according to a fourth embodiment of the present invention.
FIG. 13 is a sectional view of a clutch disk according to a fourth embodiment of the present invention.
FIG. 14 is a partial plan view of a clutch disk according to a fifth embodiment of the present invention.
FIG. 15 is a sectional view of a clutch disk according to a fifth embodiment of the present invention.
FIG. 16 is a partial plan view of a clutch disk according to a sixth embodiment of the present invention.
FIG. 17 is a circumferential sectional view of a clutch disk according to a sixth embodiment of the present invention.
FIG. 18 is a radial cross-sectional view of a clutch disk according to a sixth embodiment of the present invention.
FIG. 19 is a radial cross-sectional view of a clutch disk according to a sixth embodiment of the present invention.
[Explanation of symbols]
1 Clutch disk assembly
2 Spline hub
6 Retaining plate
7 Clutch plate (other members of the clutch disk assembly)
15,115,215,315,415,515 Friction facing
15a, 15b Notch (edge) of friction facing
16,116,216,316,416,516 cushioning pieces
17,117,217,317,417,517 cushioning plate
21,121,221,321,421 1st mounting part
21a Claw part of first mounting part
22, 122, 222, 322, 422 Second mounting part
22a Claw part of second mounting part
23, 123, 223, 323, 423, 523 Clutch disc
31 flywheel (rotating body)
141 plate member
242,542 Facing piece

Claims (7)

A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A pair of friction facings that are arranged to face each other in the axial direction, and that can be connected by being pressed against the rotating body;
A cushioning plate attached to the inside of the pair of friction facings in the axial direction and having a cushioning portion elastically deformable in the axial direction; and a cushioning plate fixed to another member of the clutch disc assembly.
The cushioning plate has a claw portion extending from the cushioning portion and being caulked to an edge of the friction facing to fix the friction facing to the cushioning portion,
Clutch disc. A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A pair of friction facings that are arranged to face each other in the axial direction, and that can be connected by being pressed against the rotating body;
A cushioning plate disposed axially inward of the pair of friction facings and elastically deformable in the axial direction, and fixed to another member of the clutch disc assembly;
A pair of plate members respectively disposed between the pair of friction facings and the cushioning portion, respectively molded and fixed to the friction facings, and fixed to other members of the clutch disc assembly;
Clutch disc with. A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A pair of friction facings that are arranged to face each other in the axial direction, and that can be connected by being pressed against the rotating body;
A cushioning plate disposed axially inward of the pair of friction facings and elastically deformable in the axial direction, and fixed to another member of the clutch disc assembly;
Each of the pair of friction facings has a plurality of facing pieces arranged in a circumferential direction,
The cushioning portion of the cushioning plate includes a plurality of wave-shaped mounting pieces that are arranged in the circumferential direction and alternately folded in the axial direction and are repeated in the circumferential direction,
Each of the mounting pieces has a first mounting portion located on one side in the axial direction and a second mounting portion located on the other side in the axial direction, and one of the facing pieces is provided on the outside in the axial direction of the first mounting portion. One of the facing pieces is molded and fixed to the outside of the second mounting portion in the axial direction while being fixed by molding,
Clutch disc. A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A pair of friction facings that are arranged to face each other in the axial direction, and that can be connected by being pressed against the rotating body;
A cushioning plate disposed axially inward of the pair of friction facings and elastically deformable in the axial direction, and comprising a cushioning plate fixed to another member of the clutch disc assembly;
The cushioning portion of the cushioning plate has a first mounting portion located on one axial side and a second mounting portion located on the other axial side,
One of the friction facings is bonded to the first mounting portion, and the other of the friction facings is bonded to the second mounting portion,
Clutch disc. A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A pair of friction facings that are arranged to face each other in the axial direction, and that can be connected by being pressed against the rotating body;
A cushioning plate that is disposed axially inside the pair of friction facings and that is elastically deformable in the axial direction, and that is fixed to another member of the clutch disc assembly;
The cushioning portion of the cushioning plate has a first mounting portion located on one axial side and a second mounting portion located on the other axial side,
A burring protrusion is formed on the first and second mounting portions,
One of the friction facings is molded and fixed to a burring protrusion of the first mounting portion, and the other of the friction facings is molded and fixed to a burring protrusion of the second mounting portion.
Clutch disc. A clutch disc of a clutch disc assembly to which torque is transmitted from a rotating body,
A friction facing that has a plurality of facing pieces arranged in a circumferential direction and is connectable by being pressed against the rotating body,
A cushioning plate having a plurality of mounting pieces to which the plurality of facing pieces are mounted one by one,
The plurality of mounting pieces are configured such that adjacent mounting pieces are alternately arranged at a first position on one axial side and a second position on the other axial side,
Clutch disc. A clutch disc assembly to which torque is transmitted from a rotating body,
A clutch disc according to any one of claims 1 to 6,
A hub to which torque from the clutch disc is input;
A clutch disk assembly including:

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