JP2008291937A - Clutch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily cancel connection of a clutch, i.e., to realize good disengagement of the clutch by pressing a lever part by a releasing member. <P>SOLUTION: An output side rotating element 2 is provided on an inner periphery of a clutch housing 1 and connected to an output side member. A clutch part 3 has one or more plate members for transmitting and blocking a power between the clutch housing 1 and the output side rotating element 2. A pressure plate 4 pressurizes the plate members of the clutch member 3. A diaphragm spring 5 has an annular pressing part 5a supported by the output side rotating element 2, arranged on an outer peripheral side, and pressing the pressure plate 4, and a lever part 4b arranged on an inner peripheral side of the annular pressing part 5a, actuated by a releasing mechanism, and canceling a pressing force of the pressing part 5a onto the pressure plate 4. Also, the lever part 5b of the diaphragm spring 5 is elastically deformed in a releasing direction by a predetermined volume in advance in an assembled condition that it is supported by the output side rotating element 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a clutch device, and more particularly to a clutch device that transmits power from an input-side member to an output-side member and interrupts power transmission by operating a release mechanism.

  In general, in a motorcycle such as a motorcycle or a buggy, a multi-plate clutch device is used to transmit or block power from an engine to a transmission. The multi-plate clutch device includes a clutch housing coupled to the crankshaft side of the engine, an output-side rotating body coupled to the transmission side, a clutch unit for transmitting and shutting power between them, and a clutch And a pressure plate for pressing the part. In the clutch portion, first clutch plates that engage with the clutch housing and second clutch plates that engage with the output side rotating body are alternately arranged.

Then, these clutch plates are brought into pressure contact with each other by a diaphragm spring via a pressure plate, whereby the rotation of the crankshaft is transmitted to the transmission side. Further, when the clutch is turned off (rotation transmission is cut off), the release mechanism is actuated by the operator holding the clutch lever, and the release mechanism depresses the diaphragm spring against the clutch plate. Power transmission between the two clutch plates is cut off (see Patent Document 1).
Japanese Utility Model Publication No. 53-55051

  In the clutch device described in Patent Document 1, the release mechanism has a release member that presses the lever portion of the diaphragm spring to bend during the release operation. When the inner circumference of the lever portion is pressed, the lever portion is elastically deformed, and after the lever portion is elastically deformed by a predetermined amount, the pressing of the pressing portion to the pressure plate is released. For this reason, even when the inner periphery of the lever portion is pressed by the release member, the pressing of the pressing portion to the pressure plate is not released until the lever portion is elastically deformed by a predetermined amount. That is, the clutch disengagement is bad.

  In particular, a clutch device for motorcycles does not have a mechanism such as a strap plate for forcibly pulling the pressure plate away from the clutch plate, so that the clutch discontinuity tends to become worse.

  An object of the present invention is to easily release the clutch by pressing the lever portion with the release member, that is, to improve the disconnection of the clutch.

A clutch device according to claim 1 is a device that transmits power from an input side member to an output side member and interrupts power transmission by operation of a release mechanism having a release member, the clutch housing, a rotating body, And a clutch portion, a pressure plate, and a pressing member. The clutch housing is connected to one of the input side member and the output side member. The rotating body is provided on the inner peripheral portion of the clutch housing, and is connected to the other of the input side member and the output side member. The clutch portion has one or more plate members for transmitting and interrupting power between the clutch housing and the rotating body. The pressure plate is for pressing the plate member of the clutch portion. The pressing member is supported by the rotating body and is arranged on the outer peripheral side and is arranged on the outer peripheral side to press the pressure plate, and the pressing member is arranged on the inner peripheral side of the annular spring part and is operated by a release mechanism to be operated by the pressure of the spring part. And a lever part for releasing the pressing force to the plate. Further, the lever member is elastically deformed in the release direction by a predetermined amount in advance in an assembled state where the pressing member is supported by the rotating body. The pressure plate has a pressing projection that protrudes toward the pressing member. The rotating body includes a rotating body main body to which a part of the plate member of the clutch portion is engaged, and a support plate that is attached to the rotating body main body and disposed on the opposite side of the pressure plate with the pressing member interposed therebetween. is doing. The main body of the rotating body has a main body side supporting protrusion protruding toward the pressing member. The support plate has a plate-side support protrusion formed so as to protrude so as to face the main-body-side support protrusion, and the pressing member has a spring portion pressing the pressure plate protrusion, and the outer periphery of the lever portion. The portion is supported between the main body side supporting protrusion and the plate side supporting protrusion.

  In this clutch device, the pressing force by the pressing member acts on the clutch portion via the pressure plate, and the clutch portion is on (power transmission state). In this state, power from the input side member is input to, for example, the clutch housing, further transmitted to the rotating body via the clutch portion, and output to the output side member. Conversely, when power from the input side member is input to the rotating body, this power is transmitted to the clutch housing via the clutch portion and output to the output side member. Here, the tip of the lever portion is elastically deformed by the release member when the clutch portion is on, that is, when the release mechanism is not operating. When the clutch is turned off (power cut-off state), when the lever part of the pressing member is operated by the release member, this operating force is amplified by a predetermined lever ratio and acts on the spring part, and the pressing force to the pressure plate is reduced. Canceled.

Here, since the lever portion is elastically deformed in the release direction by a predetermined amount in the assembled state where the pressing member is supported by the rotating body, the amount of elastic deformation of the lever portion at the time of release can be reduced. The operation of the release member makes it easy to release the pressure plate. That is, the disconnection of the clutch is improved . Further, the lever portion can be elastically deformed by a predetermined amount by pressing the outer peripheral side of the lever portion with the plate-side support protrusion.

According to a second aspect of the present invention, in the clutch device according to the first aspect , the pressing member is operated to push the inner peripheral side tip of the lever portion by the release mechanism.

A clutch device according to claim 3 is a device that transmits power from an input side member to an output side member, and interrupts power transmission by operation of a release mechanism having a release member, the clutch housing, a rotating body, And a clutch portion, a pressure plate, and a pressing member. The clutch housing is connected to one of the input side member and the output side member. The rotating body is provided on the inner peripheral portion of the clutch housing, and is connected to the other of the input side member and the output side member. The clutch portion has one or more plate members for transmitting and interrupting power between the clutch housing and the rotating body. The pressure plate is for pressing the plate member of the clutch portion. The pressing member is supported by the rotating body and is arranged on the outer peripheral side and is arranged on the outer peripheral side to press the pressure plate, and the pressing member is arranged on the inner peripheral side of the annular spring part and is operated by a release mechanism to be operated by the pressure of the spring part. And a lever part for releasing the pressing force to the plate. Further, the lever member is elastically deformed in the release direction by a predetermined amount in advance in an assembled state where the pressing member is supported by the rotating body. Further, the pressing member has a pressing projection that the pressure plate protrudes toward the pressing member. The rotating body includes a rotating body main body to which a part of the plate member of the clutch portion is engaged, and is disposed on the opposite side of the pressure plate with the pressing member sandwiched between the pressing body, and a support protrusion on the outer peripheral portion. And a support plate. In the pressing member, the outer peripheral portion of the lever portion presses the pressing protrusion of the pressure plate, and the outer peripheral portion of the spring portion is supported by the supporting protrusion of the support plate.

Here, similarly to the above, since the lever portion is elastically deformed in the release direction by a predetermined amount in the assembled state where the pressing member is supported by the rotating body, the amount of elastic deformation of the lever portion during the release is reduced. It becomes easy to release the pressure plate by operating the release member. That is, the disconnection of the clutch is improved. Further , the lever portion is elastically deformed by a predetermined amount by the outer peripheral side of the lever portion pressing the pressing protrusion.

A clutch device according to a fourth aspect is the device according to the third aspect , wherein the pressing member is operated by pulling the inner peripheral side tip of the lever portion by a release mechanism.

The clutch device according to a fifth aspect is the device according to any one of the first to fourth aspects, wherein the rotating body has a friction portion opposed to the pressure plate on an outer peripheral portion. The clutch portion has a first clutch plate that engages with the clutch housing and a second clutch plate that engages with the rotating body, and the first and second clutch plates are disposed between the friction portion of the rotating body and the pressure plate. It is pinched.

  Here, the first and second clutch plates constituting the clutch portion are sandwiched between the friction portion of the rotating body and the pressure plate, and the power is supplied to the clutch housing, the first clutch plate, the second clutch plate, and the rotating body. It is transmitted by route.

  In the present invention, the clutch can be easily disconnected by pressing the lever portion with the release member, that is, the clutch can be disengaged better.

[First Embodiment]
<Overall configuration>
The clutch device shown in FIGS. 1 and 2 transmits power from the crankshaft of the engine to the transmission and cuts off power by operating a release mechanism. This clutch device is configured to turn off the clutch by pushing the release member inward in the axial direction. Power is transmitted between the clutch housing 1, the output-side rotator 2, and the clutch housing 1 and the output-side rotator 2. The clutch part 3 for performing transmission and interruption, a pressure plate 4, a diaphragm spring 5, a release member 6, and a rotation prevention mechanism 7 for preventing rotation of the diaphragm spring 5 are provided. Here, the axially inner side indicates the left side in FIG. 1, and the axially outer side indicates the right side in FIG.

<Clutch housing>
The clutch housing 1 has a disk-shaped part 10 and a cylindrical part 11 extending from the outer peripheral side of the disk part 10 to the axially outer side (right side in FIG. 1). An input gear 13 is attached to the disc portion 10 via a plurality of annular rubber members 12. The input gear 13 meshes with a drive gear (not shown) fixed to the crankshaft on the engine side. The rubber member 12 is provided to absorb vibration from the engine, and other types such as a coil spring may be used. The cylindrical portion 11 is formed with a plurality of concave portions that are recessed radially outward in a portion on the inner peripheral side, and a plurality of notches extending in the axial direction are formed at predetermined intervals in the circumferential direction. This notch is for letting internal lubricating oil escape to the outer peripheral side.

<Output side rotating body>
The output-side rotator 2 is disposed on the inner peripheral portion of the clutch housing 1. The output-side rotator 2 has an output-side rotator body 8 and a support plate 19. The output-side rotator body 8 is formed in a substantially disc shape, and a spline 15 is formed on the outer peripheral portion, and a spline hole 16 is formed on the inner peripheral portion. The spline hole 16 in the inner peripheral portion meshes with the input shaft 17 of the transmission. Further, in the outer peripheral portion of the output-side rotator main body 8, a disc-shaped friction flange 18 that extends further radially outward is formed at the end in the axial direction inner side. Furthermore, a plurality of support protrusions 2a (main body side support protrusions) that protrude in the axial direction are formed at predetermined intervals in the circumferential direction at the outer peripheral end portion of the axially outer surface of the output-side rotating body 8. A plurality of spigot projections 2b protruding in the axial direction are formed at predetermined intervals in the circumferential direction at the inner peripheral end. The support plate 19 is attached to the output-side rotator main body 8 with bolts 20 and is disposed on the opposite side of the pressure plate 4 with the diaphragm spring 5 interposed therebetween. The support plate 19 is an annular member, and an inner peripheral end portion thereof is supported by the spigot protrusion 2 b of the output side rotating body 2. An annular support protrusion 19 a (plate-side support protrusion) protrudes inward in the axial direction so as to face the support protrusion 2 a of the output-side rotating body 2 at the outer peripheral end of the support plate 19. A thrust plate 21 is provided between the inner peripheral portion of the input gear 13 and the inner peripheral portion of the output-side rotator main body 8.

<Clutch part>
The clutch unit 3 has two first clutch plates 25 and one second clutch plate 26. Both of these clutch plates 25 and 26 are formed in an annular shape and are alternately arranged in the axial direction. Further, a plurality of engaging projections projecting outward are formed on the outer peripheral portion of the first clutch plate 25, and the engaging projections are recessed portions formed on the inner peripheral portion of the tubular portion 11 of the clutch housing 1. Are engaged. The first clutch plate 25 has friction facings on both sides. The second clutch 26 has a spline formed on the inner periphery thereof, and the spline on the inner periphery meshes with the spline 15 formed on the outer periphery of the output side rotating body 2.

<Pressure plate>
The pressure plate 4 is an annular member, and is disposed further outward in the axial direction of the first clutch plate 25 disposed on the outermost side. A spline hole 4 a is formed in the inner peripheral portion of the pressure plate 4 so as to protrude inward in the axial direction, and the spline hole 4 a meshes with the outer peripheral spline 15 of the output side rotating body 2. An annular projecting portion 4b projecting in the axial direction is formed on the outer peripheral portion of the outer surface in the axial direction of the pressure plate 4, and further projecting in the axial direction on the inner peripheral side of the annular projecting portion 4b. A pressing protrusion 4c is formed. The annular protrusion 4b protrudes more outward in the axial direction than the pressing protrusion 4c. Further, as is apparent from FIG. 2, slits 4d are formed in the annular projecting portion 4b at six positions at equal angular intervals in the circumferential direction.

<Diaphragm spring>
The diaphragm spring 5 is an annular plate member, and has a spring portion 5a as a disc spring on the outer peripheral portion. The diaphragm spring 5 is disposed on the inner peripheral portion of the spring portion 5a, and is longer in the radial direction than the spring portion 5a. It has a lever portion 5b for releasing the pressing of the portion 5a. Further, as is apparent from FIG. 2, six claws 5 d protruding outward in the radial direction are formed on the outer peripheral portion of the spring portion 5 a, and each of the six claws 5 d is engaged with the slit 4 d of the pressure plate 4. Match. Further, the outer periphery of the diaphragm spring 5 is supported on the inner periphery of the annular projecting portion 4b of the pressure plate 4, whereby the diaphragm spring 5 is centered. The outer peripheral portion of the spring portion 5 a of the diaphragm spring 5 is supported by the pressing protrusion 4 c of the pressure plate 4. The lever portion 5b of the diaphragm spring 5 is supported by being sandwiched between the support protrusion 2a of the output side rotating body 2 and the support protrusion 19a of the support plate 19 (see FIG. 2). 2 is a portion that is sandwiched and supported by the support protrusion 2a of the output-side rotator 2 and the support protrusion 19a of the support plate 19. In FIG.

  When such a diaphragm spring 5 is set as shown in FIG. 1, the pressure plate 4 is pressed inward in the axial direction by a predetermined pressing force by the biasing force of the disc spring. In this state, the lever portion 5b is elastically deformed by the support protrusion 2a of the output side rotating body 2. Here, the lever portion 5b is in a state of hardly undergoing elastic deformation even when the inner peripheral side end is pressed by the release member. That is, when the inner peripheral side end of the lever portion 5b is pressed by the release member 6, the lever portion 5b is moved inward in the axial direction by the pressing force, and at the same time, the pressing force to the clutch portion 3 of the spring portion 5a is released. The spring portion 5a is moved in the direction to be moved. The first and second clutch plates 25 and 26 of the clutch part 3 are sandwiched between the friction part 18 of the output side rotating body 2 and the pressure plate 4.

  The lever portion 5b of the diaphragm spring 4 is formed of a plurality of levers arranged in a radial pattern. A wide slit is formed between two levers adjacent to each other in the circumferential direction, and a plurality of bosses 2c protruding outward in the axial direction formed in a part of the output-side rotator 2 are provided. The slit passes through the outer side in the axial direction and abuts against the inner surface in the axial direction of the support plate 19.

<Release material>
The release member 6 is an annular plate member, and has a protrusion that protrudes inward in the axial direction on the outer peripheral side. This protrusion is in contact with the inner peripheral portion of the lever portion 5 b of the diaphragm spring 5. The release member 6 is moved inward in the axial direction during the release operation.

<Non-rotating mechanism>
The anti-rotation mechanism 7 is a mechanism for preventing the diaphragm spring 5 from rotating as described above, and the six slits 4d formed on the pressure plate 4 and the diaphragm spring 5 are engaged with the slit 4d. It consists of six claws 5d.

<Operation>
Next, the operation will be described.

  In the state shown in FIG. 1, the pressure plate 4 is pressed axially inward with a predetermined pressing force by the spring portion 5a of the diaphragm spring 5, and the first and second clutch plates 25, 26 of the clutch portion 3 are output side rotating bodies. 2 between the two friction portions 18 and the pressure plate 4. In this case, the clutch is in an on state, and rotation input from the crankshaft via the input gear 13 and the rubber member 12 is transmitted to the first clutch plate 25 via the clutch housing 1 and further to the second clutch plate 26. To the output side rotating body 2 and to the input shaft 17 of the transmission.

  On the other hand, when the driver grips the clutch lever, the operating force is transmitted to the release bearing 30 via the clutch wire or the like, and the release member 6 is moved inward in the axial direction. The movement of the release member 6 causes the inner peripheral side end of the lever portion 5b of the diaphragm spring 5 to move inward in the axial direction. Then, the outer peripheral portion of the spring portion 5 a moves outward in the axial direction with the radially intermediate portion of the diaphragm spring 5 as a fulcrum, and the spring portion 5 a moves away from the pressing protrusion 4 c of the pressure plate 4. Thereby, the pressing force of the pressure plate 4 is released, and the clutch portion 3 is turned off. In this clutch-off state, the rotation from the clutch housing 1 is not transmitted to the output-side rotator 2.

  Here, in the assembled state in which the diaphragm spring 5 is supported by the output-side rotator 2, the lever portion 5b is elastically deformed in the release direction by a predetermined amount. Therefore, the lever portion 5b is elastically deformed during the release operation. The amount can be reduced, and it becomes easy to release the pressure plate 4 by operating the release member 6. That is, it is possible to improve the clutch disengagement.

[Second Embodiment]
FIG. 3 shows a second embodiment. In this embodiment, the clutch is disengaged by moving the release member 6 outward in the axial direction. Compared with the first embodiment, the output side rotating body 2, the pressure plate 4, and the diaphragm spring 5 are used. Since only the release member 6 is different and the other configurations are the same, only the parts different from the first embodiment will be described below.

<Output side rotating body>
The output-side rotator 2 is disposed on the inner peripheral portion of the clutch housing 1. The output-side rotator 2 has an output-side rotator body 8 and a support plate 19. The output-side rotator body 8 is formed in a substantially disc shape, and a spline 15 is formed on the outer peripheral portion, and a spline hole 16 is formed on the inner peripheral portion. The spline hole 16 in the inner peripheral portion meshes with the input shaft 17 of the transmission. Further, in the outer peripheral portion of the output-side rotator main body 8, a disc-shaped friction flange 18 that extends further radially outward is formed at the end in the axial direction inner side. Furthermore, a plurality of support protrusions 2a (main body side support protrusions) that protrude in the axial direction are formed at predetermined intervals in the circumferential direction at the outer peripheral end portion of the axially outer surface of the output-side rotating body 8. A plurality of spigot projections 2b protruding in the axial direction are formed at predetermined intervals in the circumferential direction at the inner peripheral end. The support plate 19 is attached to the output-side rotator main body 8 with bolts 20 and is disposed on the opposite side of the pressure plate 4 with the diaphragm spring 5 interposed therebetween. The support plate 19 is an annular member, and an inner peripheral end portion thereof is supported by the spigot protrusion 2 b of the output side rotating body 2. An annular support protrusion 19a (plate-side support protrusion) is provided on the outer peripheral end of the support plate 19 so as to protrude inward in the axial direction. A thrust plate 21 is provided between the inner peripheral portion of the input gear 13 and the inner peripheral portion of the output-side rotator main body 8.

<Pressure plate>
The pressure plate 4 is an annular member, and is disposed further outward in the axial direction of the first clutch plate 25 disposed on the outermost side. A spline hole 4 a is formed in the inner peripheral portion of the pressure plate 4 so as to protrude inward in the axial direction, and the spline hole 4 a meshes with the outer peripheral spline 15 of the output side rotating body 2. Further, an annular projecting portion 4b projecting in the axial direction is formed on the outer peripheral portion of the axially outer surface of the pressure plate 4, and a pressing projection 4c projecting in the axial direction is formed on the inner peripheral portion. Yes. The annular protrusion 4b protrudes more outward in the axial direction than the pressing protrusion 4c.

<Diaphragm spring>
The diaphragm spring 5 is an annular plate member, and has a spring portion 5a as a disc spring on the outer peripheral portion. The diaphragm spring 5 is disposed on the inner peripheral portion of the spring portion 5a, and is longer in the radial direction than the spring portion 5a. It has a lever portion 5b for releasing the pressing of the portion 5a. Further, the outer periphery of the diaphragm spring 5 is supported on the inner periphery of the annular projecting portion 4b of the pressure plate 4, whereby the diaphragm spring 5 is centered. The outer peripheral portion of the spring portion 5 a of the diaphragm spring 5 is supported by the support protrusion 19 a of the support plate 19. The outer periphery of the lever portion 5 b of the diaphragm spring 5 is supported by the pressing protrusion 4 c of the pressure plate 4.

  In a state where such a diaphragm spring 5 is set as shown in FIG. 3, the pressure plate 4 is pressed inward in the axial direction by a predetermined pressing force by the urging force of the lever portion 5b. In this state, as shown in FIG. 3, the lever portion 5b is elastically deformed by a release member 6 described later. Here, when the lever portion 5b is further urged inward in the axial direction by the release member 6, the lever portion 5b hardly undergoes elastic deformation. That is, when the lever portion 5b is further pressed by the release member 6, the spring portion 5a is moved in a direction to release the pressing force of the spring portion 5a to the clutch portion 3 by the pressing force.

<Release material>
The release member 6 is a member for operating the lever portion 5 b of the diaphragm spring 5 to release the pressing force acting on the pressure plate 4, and includes an annular plate-like portion 61 and an outer periphery of the annular plate-like portion 61. And a contact portion 63 that is connected to the cylindrical portion 62 and contacts the inner peripheral end of the diaphragm spring 5 from the inner side in the axial direction. When the release member 6 is moved outward in the axial direction, the distal end on the inner peripheral side of the lever portion 5b of the diaphragm spring 5 is moved inward in the axial direction, and the clutch is released.

<Operation>
Next, the operation will be described.

  In the state shown in FIG. 1, the pressure plate 4 is pressed inward in the axial direction by the lever portion 5b of the diaphragm spring 5 with a predetermined pressing force, and the first and second clutch plates 25, 26 of the clutch portion 3 are output side rotating bodies. 2 between the two friction portions 18 and the pressure plate 4. In this case, the clutch is in an on state, and rotation input from the crankshaft via the input gear 13 and the rubber member 12 is transmitted to the first clutch plate 25 via the clutch housing 1 and further to the second clutch plate 26. To the output side rotating body 2 and to the input shaft 17 of the transmission.

  On the other hand, when the driver grips the clutch lever, the operating force is transmitted to the release member 6 via a clutch wire or the like, and the release member 6 is moved outward in the axial direction. As the release member 6 moves, the lever portion 5b of the diaphragm spring 5 is pressed outward in the axial direction through the contact portion, and the inner peripheral portion of the lever portion 5b is moved outward in the axial direction. With this movement, the portion of the lever portion that is in contact with the pressing projection 4 c moves outward in the axial direction, and the lever portion 5 b moves away from the pressing projection 4 c of the pressure plate 4. Thereby, the pressing force of the pressure plate 4 is released, and the clutch portion 3 is turned off. In this clutch-off state, the rotation from the clutch housing 1 is not transmitted to the output-side rotator 2.

Here, in the assembled state in which the diaphragm spring 5 is supported by the output-side rotator 2, the lever portion 5b is elastically deformed in the release direction by a predetermined amount. Therefore, the lever portion 5b is elastically deformed during the release operation. The amount can be reduced, and it becomes easy to release the pressure plate 4 by operating the release member 6. That is, it is possible to improve the clutch disengagement.
<Other embodiments>
In the above embodiment, the clutch device for motorcycles has been described. However, the present invention is not limited to this, and the present invention may be applied to other clutch devices such as a clutch device for automobiles.

The longitudinal cross-sectional view of the clutch apparatus in 1st Embodiment of this invention. The front view of the said apparatus. The longitudinal cross-sectional view of the clutch apparatus in 2nd Embodiment of this invention.

Explanation of symbols

1 Clutch Housing 2 Output-side Rotating Body 2a Supporting Projection (Main Body Side Supporting Projection)
3 Clutch portions 4, 41 Pressure plate 4 c Pressing protrusion 5 Diaphragm spring (pressing member)
5a Pressing part (spring part)
5b Lever part 6 Release member 8 Output-side rotator body 19 Support plate 19a Annular support protrusion (plate-side support protrusion)

Claims (6)

A clutch device that transmits power from an input side member to an output side member and interrupts power transmission by an operation of a release mechanism having a release member,
A clutch housing connected to one of the input side member and the output side member;
A disc-shaped rotating body provided on the inner peripheral portion of the clutch housing and connected to the other of the input side member and the output side member;
A clutch portion having one or more plate members for transmitting and interrupting power between the clutch housing and the rotating body;
A pressure plate for pressing the plate member of the clutch part;
An annular spring portion supported by the rotating body and disposed on the outer peripheral side for pressing the pressure plate, and disposed on the inner peripheral side of the annular spring portion and operated by the release mechanism, A pressing member having a lever part for releasing the pressing force to the pressure plate;
With
In the assembled state where the pressing member is supported by the rotating body, the lever portion is elastically deformed in a release direction in a predetermined amount in advance.
Clutch device. The pressure plate has a pressing protrusion protruding toward the pressing member,
The rotating body includes a rotating body main body to which a part of the plate member of the clutch portion is engaged, and a support mounted on the rotating body main body and disposed on the opposite side of the pressure plate with the pressing member interposed therebetween. A plate, and
The rotating body main body has a main body side support protrusion protruding toward the pressing member side,
The support plate has a plate-side support protrusion formed to protrude so as to face the body-side support protrusion,
In the pressing member, the spring portion presses the pressing protrusion of the pressure plate, and the outer peripheral portion of the lever portion is supported between the main body side supporting protrusion and the plate side supporting protrusion.
The clutch device according to claim 1.   The clutch device according to claim 2, wherein the pressing member is operated by pushing the inner peripheral side tip portion of the lever portion by the release mechanism. The pressure plate has a pressing protrusion protruding toward the pressing member,
The rotating body includes a rotating body main body to which a part of the plate member of the clutch portion is engaged, and an outer peripheral portion that is mounted on the rotating body main body and disposed on the opposite side of the pressure plate with the pressing member interposed therebetween. A support plate having support protrusions on
In the pressing member, the outer peripheral portion of the lever portion presses the pressing protrusion of the pressure plate, and the outer peripheral portion of the spring portion is supported by the supporting protrusion of the support plate.
The clutch device according to claim 1.   5. The clutch device according to claim 4, wherein the pressing member is pulled by the release mechanism at an inner circumferential end of the lever portion. The rotating body has a friction portion facing the pressure plate on an outer peripheral portion,
The clutch portion includes a first clutch plate that engages with the clutch housing and a second clutch plate that engages with the rotating body, and the first and second clutch plates include a friction portion of the rotating body and the friction member. Sandwiched between pressure plates,
The clutch device according to any one of claims 1 to 5.

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