Clutch device

Abstract

To inhibit deformation of a clutch center.SOLUTION: A clutch device includes: a clutch center 3; a pressure plate 4; a clutch part; and a support plate 6. The clutch center 3 has a pressure receiving part 34 and pillar parts 35. The pressure plate 4 has a pressing surface 48. The support plate 6 is attached to a tip part of each pillar part 35. The clutch center 3 has first and second cam parts 37 and 38. Each first cam part 37 is disposed at a first rotation direction side relative to the pillar part 35, and each second cam part 38 is disposed at a second rotation direction side relative to the pillar part 35. The first and second cam parts 37 and 38 are integrally formed with the pillar part 35. The first cam part 37 has a first cam surface 371 directed to a first side in an axial direction and directed in the first rotation direction. The second cam part 38 has a second cam surface 381 directed to a second side in the axial direction and directed in the second rotation direction.SELECTED DRAWING: Figure 4

Claims

1. 1. A clutch device configured to transmit power in a first rotational direction, comprising: a clutch center having a pressure receiving surface facing a first side in the axial direction and a pillar portion extending to the first side in the axial direction; a pressure plate having a pressing surface facing a second side in the axial direction and disposed on a first side in the axial direction with respect to the pressure-receiving surface, the pressure plate being disposed axially movable; a clutch portion disposed between the pressure receiving surface and the pressing surface; A support plate attached to a tip end of the column; Equipped with The clutch center is a first cam portion having a first cam surface facing a first axial direction and a first rotation direction, the first cam portion being disposed on the first rotation direction side with respect to the column portion and being integrally formed with the column portion; a second cam portion having a second cam surface facing a second axial direction and a second rotation direction, the second cam portion being disposed on the second rotation direction side with respect to the column portion and being integrally formed with the column portion; having Clutch device.

2. The clutch center has a cylindrical portion extending in an axial direction, The pillar portion, the first cam portion, and the second cam portion are disposed radially inwardly with a gap between them and the cylindrical portion.

2. The clutch device according to claim 1.

3. The pressure plate is a third cam portion including a third cam surface opposed to the first cam surface; a fourth cam portion including a fourth cam surface facing the second cam surface; a connecting portion that connects the third cam portion and the fourth cam portion and extends between the pillar portion, the first cam portion, and the second cam portion and the cylindrical portion; having 3. The clutch device according to claim 2.

4. The clutch center has a reinforcing wall disposed radially inward with respect to the second cam portion, and a boss portion disposed radially inward with respect to the pillar portion, The reinforcing wall connects the second cam portion and the boss portion.

2. The clutch device according to claim 1.

5. a biasing member that is disposed at a distance from the column portion in the circumferential direction and is disposed between the support plate and the pressure plate to bias the pressure plate toward a second side in the axial direction; The clutch arrangement of claim 1 further comprising:

6. The support plate has an attachment portion attached to the column portion and a reinforcing portion configured to improve the bending rigidity of the support plate on a radially outer side of the attachment portion.

6. The clutch device according to claim 5.

7. The support plate has an outer circumferential portion disposed radially outward from the mounting portion, and a step portion formed between the outer circumferential portion and the mounting portion, The reinforcing portion is constituted by the step portion.

7. The clutch device according to claim 6.

8. The support plate has an outer circumferential portion disposed radially outward from the mounting portion, and a bent portion formed between the outer circumferential portion and the mounting portion, The reinforcing portion is constituted by the bent portion.

7. The clutch device according to claim 6.

9. The support plate has a contact portion that contacts the biasing member, and a protruding portion that is disposed radially outward from the contact portion and protrudes toward the second side in the axial direction. A clutch device according to any one of claims 6 to 8.

10. The clutch center has an interference portion protruding from an outer circumferential surface of the pillar portion.

2. The clutch device according to claim 1.

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