Clutch device

Abstract

To provide a clutch device which can smoothly assemble a first rotation member and a second rotation member.SOLUTION: A clutch device includes a first rotation member, a second rotation member, and a guiding part. The first rotation member has a recess part and a first face. The recess part is opened to a first side in an axial direction. The first face is adjacent to the recess part in a circumferential direction. The first face is directed to the first side in the axial direction. The first rotation member is rotationally arranged. The second rotation member has a projection. The projection includes a second face directed to a second side in an axial direction. The projection is arranged inside the recess part. The second rotation member is arranged relatively rotationally with respect to the first rotation member. The guiding part is configured to guide the projection into the recess part when assembling the first rotation member and the second rotation member.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a clutch device. [Background technology]

[0002] Generally, motorcycles such as motorcycles and buggies use a clutch device to transmit or cut off power from an engine to a transmission. The clutch device has a first rotating member (e.g., a clutch center) and a second rotating member (e.g., a pressure plate) that are rotatable relative to each other (see Patent Document 1). When assembling the first rotating member and the second rotating member, it is necessary to align a protrusion of the second rotating member with a recess formed in the first rotating member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-200842 A Summary of the Invention [Problem to be solved by the invention]

[0004] When assembling the first and second rotating members, if the positions of the convex and concave parts are not aligned, the first and second rotating members cannot be assembled, so it is necessary to rotate the first and second rotating members relative to each other to align the positions of the convex and concave parts. Thus, there is a problem in that the task of aligning the convex and concave parts is time-consuming.

[0005] An object of the present invention is to provide a clutch device that allows a first rotating member and a second rotating member to be smoothly assembled. [Means for solving the problem]

[0006] The clutch device according to a first aspect includes a first rotating member, a second rotating member, and a guide portion. The first rotating member has a recess and a first surface. The recess opens to a first axial side. The first surface is adjacent to the recess in the circumferential direction. The first surface faces the first axial side. The first rotating member is rotatably arranged. The second rotating member has a protrusion. The protrusion includes a second surface facing a second axial side. The protrusion is arranged within the recess. The second rotating member is arranged to be rotatable relative to the first rotating member. The guide portion is configured to guide the protrusion into the recess when the first rotating member and the second rotating member are assembled.

[0007] According to this configuration, the clutch device includes a guide portion configured to guide the protrusion into the recess, so there is no need to align the protrusion with the recess when assembling the first rotating member and the second rotating member, which allows the first rotating member and the second rotating member to be smoothly assembled.

[0008] The clutch device according to the second aspect is the clutch device according to the first aspect, and is configured as follows: The guide portion is disposed on the first surface.

[0009] A clutch device according to a third aspect is the clutch device according to the second aspect, and is configured as follows: The guide portion has an inclined surface extending toward the recessed portion. With this configuration, the protrusion is guided to the recessed portion along the inclined surface, eliminating the need to align the protrusion and the recessed portion.

[0010] A clutch device according to a fourth aspect is the clutch device according to the second or third aspect, and is configured as follows: the first rotating member has a pillar portion extending from the first surface to a first side in the axial direction. The guide portion is connected to the pillar portion.

[0011] A clutch device according to a fifth aspect is the clutch device according to any one of the second to fourth aspects, and is configured as follows: The first rotating member has a first cam surface. The second rotating member has a second cam surface opposing the first cam surface. The first cam surface defines a side surface of the recess. The first cam surface is connected to the first surface. The first cam surface faces a second axial side. The second cam surface defines a side surface of the protrusion. The second cam surface faces a first axial side.

[0012] A clutch device according to a sixth aspect is the clutch device according to any one of the second to fifth aspects, and is configured as follows. The guide portion is arranged at a distance from an edge of the first surface in the circumferential direction. The guide portion has an inclined surface extending toward the recess. The inclined surface has a first edge arranged on a first axial side and a second edge arranged on a second axial side. The second edge is arranged at a distance from the first surface in the axial direction.

[0013] A clutch device according to a seventh aspect is the clutch device according to any one of the first to sixth aspects, and is configured as follows: The guide portion is formed on the second surface.

[0014] A clutch device according to an eighth aspect is the clutch device according to the seventh aspect, and is configured as follows: The guide portion has an inclined surface that faces the circumferential direction and also faces toward the second axial side.

[0015] A clutch device according to a ninth aspect is the clutch device according to any one of the first to eighth aspects, further comprising a clutch portion. The clutch portion is disposed between a first rotating member and a second rotating member. One of the first rotating member and the second rotating member has a pressure-receiving surface. The other of the first rotating member and the second rotating member has a pressing surface. The clutch portion is disposed between the pressure-receiving surface and the pressing surface. Effect of the Invention

[0016] According to the present invention, the first rotating member and the second rotating member can be smoothly assembled. [Brief description of the drawings]

[0017] [Figure 1] FIG. [Diagram 2] Cross-sectional view of line II-II in Figure 1. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] Cross-sectional view of line VV in Figure 1. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 4 is a schematic diagram for explaining assembly of a first rotating member and a second rotating member. [Figure 9] FIG. 4 is a schematic diagram for explaining assembly of a first rotating member and a second rotating member. [Figure 10] FIG. 4 is a schematic diagram for explaining assembly of a first rotating member and a second rotating member. [Figure 11] 6 is a view corresponding to FIG. 5 of a clutch device according to a modified example. [Figure 12] FIG. 3 is a view corresponding to FIG. 2 of a clutch device according to a modified example. [Figure 13] FIG. 11 is a schematic view showing a guide portion according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The clutch device 100 according to this embodiment will be described below with reference to the drawings. In the following description, the axial direction is the direction in which the rotation axis O of the clutch device 100 extends. The first axial side means the right side in FIG. 2, and the second axial side means the left side in FIG. 2. The circumferential direction is the circumferential direction of a circle centered on the rotation axis O, and the radial direction is the radial direction of a circle centered on the rotation axis O. The first rotation direction is the direction in which the clutch device rotates during running, and the second rotation direction is the rotation direction opposite to the first rotation direction.

[0019] [Clutch device] FIG. 1 is a plan view of the clutch device 100, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. As shown in FIGS. 1 and 2, the clutch device 100 is configured to transmit power from a drive source (e.g., an engine) to a drive wheel or to cut off the transmission. The clutch device 100 is configured to transmit power in a first rotational direction R1 (counterclockwise in FIG. 1). The clutch device 100 is configured to be rotatable. In detail, the clutch device 100 rotates in the first rotational direction R1 around a rotation axis O.

[0020] The clutch device 100 has a clutch housing 2, a first rotating member 3, a second rotating member 4, a clutch portion 5, and a support plate 6. The clutch device 100 also has a plurality of bolts 8 and a plurality of coil springs 9.

[0021] [Clutch housing] As shown in Fig. 2, the clutch housing 2 has a disk portion 21 and a cylindrical portion 22. The clutch housing 2 is connected to an input gear 10. The input gear 10 is an annular member to which power generated by an engine (not shown) is input. The input gear 10 meshes with a drive gear (not shown) fixed to a crankshaft on the engine side.

[0022] The disk portion 21 is connected to the input gear 10 via a plurality of coil springs (not shown). The cylindrical portion 22 extends from the outer circumferential edge portion of the disk portion 21 toward the first axial side. The cylindrical portion 22 has a plurality of notches 221 extending in the axial direction. The multiple notches are arranged at intervals from one another in the circumferential direction.

[0023] [First rotating member] Fig. 3 is a plan view of the first rotating member 3 as viewed from the first axial side, Fig. 4 is a perspective view of the first rotating member 3, and Fig. 5 is a cross-sectional view taken along line VV in Fig. 1. In Fig. 5, for ease of illustration, illustration of components other than the first rotating member 3, the second rotating member 4, the support plate 6, and the bolt 8 is omitted.

[0024] As shown in Fig. 2, the first rotating member 3 is disposed on a first axial side with respect to the clutch housing 2. The first rotating member 3 is disposed radially inward with respect to the cylindrical portion 22 of the clutch housing 2. The first rotating member 3 is disposed rotatably about a rotation axis O. The first rotating member 3 is configured to rotate relative to the clutch housing 2. The first rotating member 3 is disposed immovably in the axial direction.

[0025] As shown in Figures 2 to 5, the first rotating member 3 has a first boss portion 31, a plurality of base portions 32, a plurality of pillar portions 33, a plurality of recesses 34, a plurality of guide portions 35, a first cylindrical portion 36, a first flange portion 37, and a pressure-receiving surface 38.

[0026] 2 and 3, the first boss portion 31 extends in the axial direction. The first boss portion 31 is cylindrical. The first boss portion 31 has a spline hole 31a extending in the axial direction in its center. An input shaft (not shown) of the transmission is spline-engaged with the spline hole 31a. A thrust plate 14 is provided between the first boss portion 31 and the input gear 10 in the axial direction.

[0027] Each base portion 32 extends radially outward from the outer circumferential surface of the first boss portion 31. Each base portion 32 is disposed radially outward relative to the first boss portion 31. Each base portion 32 is disposed at intervals from one another in the circumferential direction. Each base portion 32 is connected to the first cylindrical portion 36. Each base portion 32 has a first surface 321 facing a first axial side. The first surface 321 is perpendicular to the axial direction.

[0028] The pillar portion 33 extends axially from the first surface 321 of the base portion 32 toward the first side. The pillar portion 33 is cylindrical. The pillar portion 33 has a screw hole 331 that penetrates in the axial direction.

[0029] The recesses 34 are arranged at intervals from one another in the circumferential direction. The recesses 34 are arranged alternately with the base portions 32 in the circumferential direction. When viewed in the axial direction, the recesses 34 are adjacent to the first surface 321 in the circumferential direction. Each recess 34 opens to a first axial side. In this embodiment, each recess 34 penetrates in the axial direction and therefore also opens to a second axial side.

[0030] 4 and 5, the first rotating member 3 has a first cam surface 341 and a third cam surface 342. The first cam surface 341 and the third cam surface 342 define the side surfaces of the recess 34. In detail, the first cam surface 341 and the third cam surface 342 define the circumferential side surfaces of the recess 34. The first cam surface 341 defines the side surface of the recess 34 on the first rotation direction R1 side. The third cam surface 342 defines the side surface of the recess 34 on the second rotation direction R2 side.

[0031] The first cam surface 341 faces the circumferential direction and is inclined so as to face the second axial side. More specifically, the first cam surface 341 faces the second rotation direction R2. The first cam surface 341 is connected to the first surface 321.

[0032] The third cam surface 342 faces the circumferential direction and is inclined so as to face the first axial side. More specifically, the third cam surface 342 faces the first rotation direction R1. The third cam surface 342 faces away from the first cam surface 341. The third cam surface 342 is connected to the first surface 321.

[0033] As shown in Figs. 3 to 5, the guide portion 35 is formed on the first surface 321. The guide portion 35 is integrally formed with the base portion 32 by one member. The guide portion 35 is adjacent to the pillar portion 33 in the circumferential direction. The guide portion 35 is disposed on the second rotation direction R2 side with respect to the pillar portion 33. The guide portion 35 is connected to the pillar portion 33. With this configuration, even if an attempt is made to attach the coil spring 9 to the pillar portion 33, the guide portion 35 interferes with the coil spring 9 and the attachment is not possible. Therefore, it is possible to prevent the coil spring 9 from being erroneously attached to the pillar portion 33. The guide portion 35 is integrally formed with the pillar portion 33 by one member.

[0034] First surface 321 extends in the circumferential direction from first cam surface 341 to third cam surface 342. Guide portion 35 is disposed on the first cam surface 341 side on first surface 321 extending from first cam surface 341 to third cam surface 342. Guide portion 35 is disposed so as to overlap first cam surface 341 when viewed in the axial direction.

[0035] The guide portion 35 has a triangular shape when viewed in the radial direction. The guide portion 35 has an inclined surface 351. The inclined surface 351 extends toward the recess 34. In detail, the inclined surface 351 faces the circumferential direction and is inclined so as to face the first axial side. The inclined surface 351 faces the second rotation direction R2.

[0036] 3 and 4, the first cylindrical portion 36 extends in the axial direction. A plurality of first external teeth 361 are formed on the outer circumferential surface of the first cylindrical portion 36. Each of the first external teeth 361 extends in the axial direction.

[0037] The first cylindrical portion 36 is disposed radially outwardly of each of the base portions 32 at a distance therefrom. Therefore, a valley portion 301 extending in the circumferential direction is formed between each of the base portions 32 and the first cylindrical portion 36. The first cylindrical portion 36 is connected to the second axial side end portion of each of the base portions 32.

[0038] The first flange portion 37 extends radially outward from the first cylindrical portion 36. In detail, the first flange portion 37 extends radially outward from the end portion on the second axial direction side of the first cylindrical portion 36. A surface of the first flange portion 37 facing the first axial direction side becomes a pressure-receiving surface 38. In other words, the pressure-receiving surface 38 faces the first axial direction side. The pressure-receiving surface 38 is annular and extends in the circumferential direction. The pressure-receiving surface 38 is disposed on the outer periphery of the first rotating member 3.

[0039] [Second rotating member] FIG. 6 is a perspective view of the second rotating member as viewed from the second axial side, and FIG. 7 is a perspective view of the second rotating member as viewed from the first axial side. As shown in FIGS. 2, 5, 6, and 7, the second rotating member 4 is arranged to be movable in the axial direction. That is, the second rotating member 4 is movable relative to the first rotating member 3 in the axial direction. The second rotating member 4 is arranged to be rotatable about the rotation axis O. The second rotating member 4 is rotatable relative to the first rotating member 3 within a predetermined range. The second rotating member 4 is arranged between the first rotating member 3 and the support plate 6 in the axial direction.

[0040] The second rotating member 4 has a second boss portion 41, a plurality of protrusions 42, a plurality of connecting portions 43, a second flange portion 44, a pressing surface 45, and a second cylindrical portion 46.

[0041] 6 and 7, the second boss portion 41 is cylindrical and extends in the axial direction. The second boss portion 41 is configured to have a release mechanism (not shown) attached thereto. Each of the protrusions 42 is disposed radially outward from the second boss portion 41.

[0042] As shown in Fig. 5 and Fig. 6, the protrusions 42 are arranged at intervals from one another in the circumferential direction. Each protrusion 42 is arranged in each recess 34. Each protrusion 42 protrudes toward the second axial side. Each protrusion 42 has a second surface 421 facing the second axial side. The second surface 421 constitutes a tip surface of each protrusion 42. In other words, the second surface 421 is an end surface of each protrusion 42 on the second axial side.

[0043] 6 and 7, each protrusion 42 extends radially outward from the second boss portion 41. Each protrusion 42 has a holding recess 424 configured to hold the coil spring 9. The holding recess 424 extends in the axial direction. The holding recess 424 opens to a first axial side.

[0044] 5, each protrusion 42 has a second cam surface 422 and a fourth cam surface 423. The second cam surface 422 and the fourth cam surface 423 define the side surface of the protrusion 42. In detail, the second cam surface 422 and the fourth cam surface 423 define the circumferential side surface of the protrusion 42. The second cam surface 422 defines the side surface of the protrusion 42 on the first rotation direction R1 side. The fourth cam surface 423 defines the side surface of the protrusion 42 on the second rotation direction R2 side.

[0045] The second cam surface 422 faces the first cam surface 341. The second cam surface 422 faces the circumferential direction and is inclined so as to face the first axial side. More specifically, the second cam surface 422 faces the first rotation direction R1. The second cam surface 422 is connected to the second surface 421.

[0046] The fourth cam surface 423 faces the third cam surface 342. The fourth cam surface 423 faces the circumferential direction and is inclined so as to face the second axial side. More specifically, the fourth cam surface 423 faces the second rotation direction R2. The fourth cam surface 423 is connected to the second surface 421.

[0047] 6, the connecting portion 43 connects the respective protruding portions 42. The connecting portion 43 extends in the circumferential direction between the base portion 32 and the first cylindrical portion 36. That is, the connecting portion 43 extends in the circumferential direction within the valley portion 301 (see FIG. 2).

[0048] The second flange portion 44 is disposed radially outward from the protrusion 42 and the connecting portion 43. A surface of the second flange portion 44 facing the second axial side becomes a pressing surface 45. In other words, the pressing surface 45 faces the second axial side. The pressing surface 45 is annular and extends in the circumferential direction. The pressing surface 45 is disposed on the outer periphery of the second rotating member 4.

[0049] 5, the pressing surface 45 is disposed on a first axial side with respect to the pressure-receiving surface 38. When viewed in the axial direction, the pressing surface 45 overlaps with the pressure-receiving surface 38.

[0050] 6, the second cylindrical portion 46 extends from the inner circumferential end of the second flange portion 44 toward the second axial side. The second cylindrical portion 46 is disposed adjacent to the first cylindrical portion 36 in the axial direction. The second cylindrical portion 46 is disposed at an interval from the first cylindrical portion 36 in the axial direction.

[0051] The second cylindrical portion 46 has a plurality of second external teeth 461 formed on its outer circumferential surface. Each of the second external teeth 461 extends in the axial direction. The dimensions of the second external teeth 461 are the same as the dimensions of the first external teeth 361, except for the dimensions in the axial direction. The tip circle diameter of the second cylindrical portion 46 is the same as the tip circle diameter of the first cylindrical portion 36. In addition, the root circle diameter of the second cylindrical portion 46 is the same as the root circle diameter of the first cylindrical portion 36.

[0052] The assembly of the first rotating member 3 and the second rotating member 4 configured as above will be described with reference to Figures 8 to 10. Figures 8 to 10 are schematic diagrams for explaining the assembly of the first rotating member 3 and the second rotating member 4.

[0053] As shown in Fig. 8, when assembling the first rotating member 3 and the second rotating member 4, the second rotating member 4 is moved toward the first rotating member 3 in the second axial direction. Here, in a conventional configuration, in order to accommodate the convex portion 42 of the second rotating member 4 within the concave portion 34 of the first rotating member 3, it is necessary to align the convex portion 42 with the concave portion 34 in the circumferential direction (the left-right direction in Fig. 8). On the other hand, in this embodiment, since the guide portion 35 is provided, it is not necessary to align the convex portion 42 with the concave portion 34, as will be described below.

[0054] 9, when the second rotating member 4 is moved toward the second axial side, the convex portion 42 of the second rotating member 4 comes into contact with the inclined surface 351 of the guide portion 35. Then, when the second rotating member 4 is further moved toward the second axial side, the convex portion 42 of the second rotating member 4 is guided into the concave portion 34 of the first rotating member 3 while rotating in the circumferential direction along the inclined surface 351 of the guide portion 35. Then, as shown in FIG. 10, the convex portion 42 of the second rotating member 4 is finally disposed in the concave portion 34 of the first rotating member 3. In this manner, the guide portion 35 is configured to guide the convex portion 42 into the concave portion 34 when the first rotating member 3 and the second rotating member 4 are assembled together.

[0055] [Clutch section] 2, the clutch portion 5 is configured to transmit and interrupt power between the clutch housing 2 and the first rotating member 3. The clutch portion 5 is disposed between the first rotating member 3 and the second rotating member 4. In detail, the clutch portion 5 is disposed between the pressure receiving surface 38 and the pressing surface 45.

[0056] The clutch portion 5 has a plurality of drive plates 51 and a plurality of driven plates 52. The drive plates 51 and the driven plates 52 are disposed between the pressure receiving surface 38 and the pressing surface 45. The drive plates 51 and the driven plates 52 are disposed alternately in the axial direction.

[0057] The drive plate 51 is axially movable but not rotatable relative to the clutch housing 2. In other words, the drive plate 51 rotates integrally with the clutch housing 2. Friction materials are attached to both sides of the drive plate 51.

[0058] The driven plate 52 is axially movable but not rotatable relative to the first cylindrical portion 36 or the second cylindrical portion 46. That is, the driven plate 52 rotates integrally with the first rotating member 3 or the second rotating member 4.

[0059] [Support plate] 1 and 2, the support plate 6 is annular and extends in the circumferential direction. The support plate 6 is disposed on a first axial side with respect to the first rotating member 3. The support plate 6 is attached to the tip of the column portion 33. In detail, the first rotating member 3 and the support plate 6 are fastened together by a bolt 8. Therefore, the support plate 6 rotates integrally with the first rotating member 3.

[0060] [Coil spring] The coil spring 9 is disposed at intervals from the pillar portions 33 in the circumferential direction. In detail, a plurality of coil springs 9 and a plurality of pillar portions 33 are disposed alternately in the circumferential direction. The coil spring 9 is disposed in a compressed state in the axial direction between the second rotating member 4 and the support plate 6. The end of the coil spring 9 on the second axial side is disposed in the retaining recess 424 of the second rotating member 4. The coil spring 9 is held by the retaining recess 424, so that movement in the radial and circumferential directions is restricted.

[0061] The coil spring 9 biases the second rotating member 4 toward the second axial direction. As a result, the pressing surface 45 is biased to approach the pressure receiving surface 38, the clutch unit 5 is in the clutch-on state, and power is transmitted. Note that, by using the release member to move the second rotating member 4 toward the first axial direction against the biasing force of the coil spring 9, the pressing surface 45 moves away from the pressure receiving surface 38. As a result, the clutch unit 5 is in the clutch-off state, and the transmission of power between the clutch housing 2 and the first rotating member 3 is interrupted.

[0062] [Cam mechanism operation] When the second rotating member 4 rotates relative to the first rotating member 3 in the first rotation direction R1 during acceleration, the first cam surface 341 and the second cam surface 422 press against each other, and the second rotating member 4 moves toward the second axial direction. As a result, the pressing surface 45 moves closer to the pressure receiving surface 38, and the coupling force of the clutch portion 5 increases.

[0063] On the other hand, when the first rotating member 3 rotates relative to the second rotating member 4 in the first rotation direction R1 during deceleration, the third cam surface 342 and the fourth cam surface 423 press against each other, and the second rotating member 4 moves axially toward the first side. As a result, the pressing surface 45 moves away from the pressure receiving surface 38, and the coupling force of the clutch portion 5 is reduced.

[0064] [Variations] Although the embodiment of the present invention has been described above, the present invention is not limited to these, and various modifications are possible without departing from the spirit of the present invention. Note that the following modifications can basically be applied simultaneously.

[0065] (a) In the above embodiment, the guide portion 35 is formed on the first rotating member 3, but the configuration of the clutch device 100 is not limited to this. For example, as shown in FIG. 11, the guide portion 35 may be formed on the second rotating member 4. In detail, the guide portion 35 may be formed on the second surface 421 of the convex portion 42 of the second rotating member 4. In this case, the inclined surface 351 of the guide portion 35 is inclined so as to face the circumferential direction and the second axial side. Note that the inclined surface 351 faces the first rotation direction R1 side. This guide portion 35 is also configured to guide the convex portion 42 into the concave portion 34 when the first rotating member 3 and the second rotating member 4 are assembled. Note that the clutch device 100 may have a guide portion formed on the second rotating member 4 in addition to the guide portion 35 formed on the first rotating member 3.

[0066] (b) In the above embodiment, the first rotating member 3 is arranged so as to be immovable in the axial direction, and the second rotating member 4 is arranged so as to be movable in the axial direction, but the configuration of the clutch device 100 is not limited to this. That is, as shown in Fig. 12, the first rotating member 3 may be arranged so as to be movable in the axial direction, and the second rotating member 4 may be arranged so as to be immovable in the axial direction.

[0067] (c) FIG. 13 is a schematic diagram showing a modified example of the guide portion 35. As shown in FIG. 12, the guide portion 35 may be arranged at a distance from the edge 322 of the first surface 321 in the circumferential direction. The inclined surface 351 of the guide portion 35 has a first edge 352 and a second edge 353. The first edge 352 is an edge arranged on the first axial side. The second edge 353 is an edge arranged on the second axial side. The second edge 353 is arranged at a distance from the first surface 321 in the axial direction. That is, the second edge 353 is arranged on the first axial side with respect to the first surface 321. A virtual surface (a two-dot chain line in FIG. 13) obtained by extending the inclined surface 351 toward the recess 34 extends to the recess 34 without intersecting with the first surface 321. [Explanation of symbols]

[0068] 3: First rotating member 321: 1st page 322: Edge 33: Pillar part 34: Recess 341: First cam surface 35: Information department 351: Inclined surface 352: First edge 353: Second edge 4: Second rotating member 42: Convex 421: 2nd side 422: Second cam surface 100: Clutch device

Claims

1. a first rotating member having a recess that opens to a first side in the axial direction and a first surface that is adjacent to the recess in the circumferential direction and faces the first side in the axial direction, the first rotating member being rotatably arranged; a second rotating member having a protrusion that includes a second surface facing a second axial direction side and is disposed within the recess, the second rotating member being disposed to be rotatable relative to the first rotating member; a guide portion configured to guide the protrusion into the recess when the first rotating member and the second rotating member are assembled; A clutch device comprising:

2. The guide portion is disposed on the first surface.

2. The clutch device according to claim 1.

3. The guide portion has an inclined surface extending toward the recess.

3. The clutch device according to claim 2.

4. The first rotating member has a column portion extending from the first surface toward a first side in the axial direction, The guide portion is connected to the column portion.

3. The clutch device according to claim 2.

5. the first rotating member has a first cam surface; the second rotating member has a second cam surface opposed to the first cam surface, The first cam surface defines a side surface of the recess, is connected to the first surface, and faces a second axial direction. The second cam surface defines a side surface of the protrusion and faces a first axial direction side.

3. The clutch device according to claim 2.

6. The guide portion is disposed at a distance from an edge of the first surface in a circumferential direction, The guide portion has an inclined surface extending toward the recessed portion, The inclined surface has a first end edge disposed on a first axial side and a second end edge disposed on a second axial side, The second edge is axially spaced from the first surface.

3. The clutch device according to claim 2.

7. The guide portion is formed on the second surface.

2. The clutch device according to claim 1.

8. The guide portion has an inclined surface facing the circumferential direction and facing the second axial side.

8. The clutch device according to claim 7.

9. a clutch portion disposed between the first rotating member and the second rotating member, One of the first rotating member and the second rotating member has a pressure receiving surface, the other of the first rotating member and the second rotating member has a pressing surface, The clutch portion is disposed between the pressure receiving surface and the pressing surface.

2. The clutch device according to claim 1.

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