JP2001221249A - Clutch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a double-clutch clutch device with a simple structure. SOLUTION: In this clutch device, a friction drive plate 8 has a first friction face 8a and a second friction face 8b. A first clutch disk assembly 13 has a first friction connection part 44 disposed near the first friction face 8a. A second clutch disk assembly 14 has a second friction connection part 45 disposed near the second friction face 8b. A first pressure plate 19 is disposed near an axial engine side of the connection part 44. A cone spring 20 energizes the plate 19 toward the connection part 44. A release mechanism 21 is a mechanism for disconnecting the plate 19 from the connection part 44. A second pressure plate 27 is disposed near the axial transmission side of the connection part 45. A second clutch mechanism 17 is a mechanism for energizing/disconnecting the second plate 27 to/from the connection part 45.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch device, and more particularly to a clutch device capable of separately transmitting and disconnecting torque from a crankshaft of an engine to first and second input shafts of a transmission. .

[0002]

2. Description of the Related Art A clutch device is a device for transmitting torque from a crankshaft of an engine to a transmission and interrupting the transmission of torque as necessary. The clutch device includes a flywheel fixed to the crankshaft,
Clutch disc assembly having a friction coupling portion proximate to a friction surface of a flywheel, and a clutch cover assembly fixed to the flywheel and urging the friction coupling portion to the friction surface of the flywheel and releasing the urging as necessary It is composed of three-dimensional objects.

As a clutch device, there is a double clutch capable of separately transmitting torque or interrupting torque transmission to two input shafts extending from a transmission. Such a double clutch has a friction drive plate to which torque is input from the crankshaft of the engine. A first friction surface is formed on an axial engine side of the friction drive plate, and a second friction surface is formed on the axial transmission side. Further, a first friction coupling portion of the first clutch disc assembly is disposed near the first friction surface. The first clutch disk assembly is the first
Connected to the input shaft. A second friction coupling portion of the second clutch disc assembly is disposed near the second friction surface. The second clutch disc assembly is connected to the second input shaft. Further, a first pressure plate is disposed on a side of the first friction connection portion opposite to the friction drive plate. Further, a second pressure plate is disposed on a side of the first friction connection portion opposite to the friction drive plate.

In the double clutch disclosed in US Pat. No. 4,966,270, the first pressure plate and the second pressure plate are each frictionally connected to each other by hydraulic pressure supplied from separate oil passages formed in the clutch housing. To the friction drive plate side.
A first hydraulic working chamber for driving the first pressure plate is formed in a transmission side portion of the clutch housing, and a second hydraulic working chamber for driving the second pressure plate is formed in an engine side portion of the clutch housing.

Further, in the double clutch disclosed in US Pat. No. 4,710,147, first and second annular pistons are disposed in first and second annular hydraulic chambers formed in a transmission side portion of the clutch housing. . The first piston can drive the first pressure plate by a plurality of pins. Further, the second annular piston can drive the second pressure plate by a plurality of pins.

As described above, in the structure in which the pressure plate, particularly, the hydraulic chamber for driving the first pressure plate is formed in the clutch housing, the axial length of the clutch housing becomes longer, and the structure becomes more complicated. turn into. An object of the present invention is to realize a clutch device of a double clutch with a simple structure.

[0007]

According to the clutch device of the present invention, it is possible to separately operate torque transmission and cutoff from the crankshaft of the engine to the first and second input shafts of the transmission. Things,
The vehicle includes a friction coupling member, a first clutch disk assembly, a second clutch disk assembly, a first pressure plate, an elastic member, a release mechanism, a second pressure plate, and a clutch mechanism. The friction coupling member has a first friction surface on the axial engine side and a second friction surface on the axial transmission side. Torque is input to the friction coupling member from a crankshaft. The first clutch disc assembly has a first friction coupling portion disposed close to the first friction surface, and is capable of transmitting torque to the first input shaft. The second clutch disk assembly has a second friction coupling portion disposed close to the second friction surface, and is capable of transmitting and outputting torque to the second input shaft. The first pressure plate is arranged close to the first frictional connection member on the engine side in the axial direction. The elastic member is a member for urging the first pressure plate toward the first friction connecting portion. The release mechanism is a mechanism for separating the first pressure plate from the first frictional connection portion. The second pressure plate is disposed close to the second friction coupling portion on the axial transmission side. The clutch mechanism is the second
This is a mechanism for urging and separating the pressure plate to and from the second frictional connection portion.

In this clutch device, the first pressure plate is urged by the elastic member toward the first friction coupling portion. Therefore, there is no need to provide an oil passage or a hydraulic working chamber for driving the first pressure plate,
The structure of the entire clutch device is simplified. According to a second aspect of the present invention, the clutch device according to the first aspect further includes a clutch cover. The clutch cover is adapted to rotate integrally with the friction coupling member. The clutch cover has a first support portion and a second support portion that are disposed so as to face the second friction surface with an interval on the transmission side in the axial direction. The release mechanism is supported by the first support. The clutch mechanism is supported by the second support.

In this clutch device, the first support portion of the clutch cover supports the release mechanism and the second support portion supports the clutch mechanism, so that the number of parts is small. In the clutch device according to the third aspect, the clutch cover according to the second aspect, wherein the clutch cover has a first support portion extending from the annular portion toward the transmission in the axial direction.
A second portion extending from the annular portion toward the transmission in the axial direction and having a second support portion.

[0010] In this clutch device, the first portion having the first support portion, the second portion having the second support portion, and the annular portion are formed as an integral member, so that the structure is simple. In the clutch device according to the fourth aspect, in the third aspect, the first portion includes a plurality of first extension portions extending from the annular portion toward the transmission in the axial direction, and the first portion is fixed to the first extension portion.
An annular member forming a support portion. The second portion has a plurality of second extensions extending from the annular portion toward the transmission in the axial direction to form a second support.

In this clutch device, since the first support portion is formed by the annular member, the release mechanism can be more stably supported. In the clutch device according to the fifth aspect, in the fourth aspect, the second extension portion extends radially inward relative to the first extension portion, so that the second support portion extends in the axial direction from the first support portion. Located on the side.

In this clutch device, the second supporting portion and the first
Since the support portion has a different axial position, it is possible to arrange another member in the axial direction. In the clutch device according to the sixth aspect, in the fifth aspect, the release mechanism includes:
It has a release member and a lever member. One end of the release member abuts the first pressure plate from the transmission side in the axial direction, and the other end is located near the first portion. The lever member can contact the first support portion and the other end to move the release member toward the engine in the axial direction. The release member has a driving member. A driving member, an annular portion supported by the first pressure plate,
A plurality of axially extending portions extending from the annular portion to the axial transmission side and penetrating through the friction coupling member.
The plurality of axial extensions extend between the rotational directions of the plurality of second extensions and radially inward of the second extensions.

In this clutch device, since the release member has a plurality of axially extending portions extending radially inward of the first extending portion, there is no need to provide a through hole in the clutch cover. The clutch device according to claim 7 is the clutch device according to claims 1 to
In any one of 5, the release mechanism has a release member and a lever member. One end of the release member contacts the first pressure plate from the transmission side in the axial direction, and the other end is located near the second portion. The lever member is in contact with the first support portion and the other end, and can move the release member toward the engine in the axial direction.

In this clutch device, the first pressure plate can be separated from the first frictional connection part by the lever member driving the release member. In the clutch device according to the eighth aspect, in the seventh aspect, the release member has a driving member. The driving member has an annular portion supported by the first pressure plate, and a plurality of axially extending portions extending from the annular portion toward the transmission in the axial direction and penetrating the friction coupling member.

In this clutch device, since the driving member has the annular portion supported by the first pressure plate, the posture is easily stabilized. In the clutch device according to the ninth aspect, in the sixth aspect or the eighth aspect, the driving member further includes an annular contact portion fixed to a distal end of the axially extending portion and in contact with the lever member.

In this clutch device, the contact with the lever member is stabilized by providing the annular contact portion. In the clutch device according to the tenth aspect, in the ninth aspect, the annular contact portion is detachable in the axial direction from the axially extended portion.

[0017]

FIG. 1 is a schematic longitudinal sectional view of a clutch device 1 according to an embodiment of the present invention. The clutch device 1 is a device for transmitting and interrupting torque from the crankshaft 2 of the engine to the first and second input shafts 3 and 4 of the transmission. An engine (not shown) is arranged on the left side of FIG. 1, and a transmission (not shown) is arranged on the right side of FIG. The first input shaft 3 is a cylindrical shaft extending from the transmission side. The tip of the first input shaft 3 extends to near the tip of the crankshaft 2. The second input shaft 4 is a substantially cylindrical shaft extending around the first input shaft 3 from the transmission side. Second input shaft 4
Is located closer to the transmission in the axial direction than the first input shaft. A plurality of spline teeth extending in the axial direction are formed on the outer peripheral surfaces of both input shafts 3 and 4.

The clutch device 1 mainly includes a flywheel 7, a friction drive plate 8, a clutch cover 9, a first clutch disk assembly 13, a second clutch disk assembly 14, and a first clutch mechanism 16 And a second clutch mechanism 17. The flywheel 7 is a disk-shaped and annular member fixed to the tip of the crankshaft 2. The flywheel 7 is a member having a relatively large axial thickness. The inner peripheral portion of the flywheel 7 is fixed to the crankshaft 2 by a plurality of bolts 31. The bolt 31 extends through a hole formed in the flywheel 7 and is screwed into a bolt hole 32 formed in the crankshaft 2. Further, an outer peripheral cylindrical portion 34 extending toward the transmission in the axial direction is formed on the outer peripheral portion of the flywheel 7. A plurality of bolt holes 36 are formed at an end of the outer cylindrical portion 34 on the transmission side in the axial direction. An engine start ring gear 35 is fixed to the outer peripheral surface of the flywheel 7.

The friction drive plate 8 is a disk-shaped and annular member arranged at an interval on the transmission side of the flywheel 7 in the axial direction. The outer diameter of the friction drive plate 8 is substantially equal to the outer diameter of the flywheel 7. However, the inner diameter of the friction drive plate 8 is larger than the inner diameter of the flywheel 7. Friction drive plate 8
Has a first friction surface 8a on the engine side in the axial direction,
A second friction surface 8b is provided on the axial transmission side. The outer periphery of the friction drive plate 8 is a flywheel 7.
Abuts on the outer cylindrical portion 34 of the
Has a hole 8c at a position corresponding to.

The clutch cover 9 is a substantially annular member made of sheet metal. The clutch cover 9 is fixed to the friction drive plate 8 and the flywheel 7 by bolts (not shown) so as to rotate integrally therewith. Specifically, a bolt (not shown) passes through a hole 8 c formed in the friction drive plate 8 and is screwed into the bolt hole 36 of the flywheel 7. The clutch cover 9 includes a first member 37 and a second member 41. The first member 37 includes an annular portion 38 and a first extension portion 39 extending from the annular portion 38 toward the transmission in the axial direction.
And a second extension 40. Annular part 38
Is in contact with the outer peripheral portion of the friction drive plate 8 in the axial direction of the transmission. The annular portion 38 has a hole 38a through which the above-described bolt passes. As shown in FIGS. 2 and 4, the first extension portions 39 and the second extension portions 40 are formed alternately in the rotation direction. The first extension 39 extends substantially straight in the axial direction. A second member 41 is fixed to a tip of the first extension 39. The second member 41 is a substantially annular member made of a sheet metal member, and the first extension 3
9, a substantially cylindrical portion 41a extending toward the transmission in the axial direction, and a disc-shaped portion 4 extending from the tip to the inner peripheral side.
1b. On the inner peripheral side of the disc-shaped portion 41b,
An annular projecting portion 56 projecting toward the engine in the axial direction is formed. The second extension 40 extends inward from the first extension 39. Thereby, the second extension portion 40 is located closer to the engine side in the axial direction than the second member 41. In addition, a support portion 58 that protrudes toward the engine in the axial direction is formed on the second extension portion 40.

The first clutch disc assembly 13 includes a first
This is a mechanism for outputting torque to the input shaft 3. The first clutch disc assembly 13 has a first friction coupling portion 44 on the outer peripheral side. First friction connection part 44
Is arranged near the first friction surface 8a of the friction drive plate 8, that is, on the engine side of the friction drive plate 8 in the axial direction. Further, the first clutch disk assembly 13 has a damper mechanism for absorbing and attenuating torsional vibration, which includes a plurality of springs and a friction generating mechanism. Further, the inner peripheral surface of the first clutch disc assembly 13 is spline-engaged with the first input shaft 3.

Next, the first clutch mechanism 16 will be described. The first clutch mechanism 16 is connected to the first friction coupling section 4 described above.
4 is a mechanism for urging the friction drive plate 4 against the friction drive plate 8 and releasing the urging force as necessary. The first clutch mechanism 16 mainly includes a first pressure plate 19
, A cone spring 20, and a release mechanism 21. The first pressure plate 19 is an annular member disposed on the engine side in the axial direction of the first frictional connection portion 44. The first pressure plate 19 is fixed to the flywheel 7 or the friction drive plate 8 by a plate or the like (not shown) so as to rotate integrally with the flywheel 7 or to move in the axial direction. The cone spring 20 is a biasing elastic member disposed between the first pressure plate 19 and the flywheel 7 in the axial direction. The outer peripheral end of the cone spring 20 is connected to the annular support portion 61 of the first pressure plate 19.
, And the inner peripheral end is supported by an annular support portion 62 formed on the flywheel. The inner peripheral surface of the cone spring 20 is formed on the peripheral surface 3 formed on the flywheel 7.
3 for radial positioning.
In this state, the cone spring 20 is compressed in the axial direction, and as a result, applies a biasing force to the first pressure plate 19 toward the transmission in the axial direction.

The release mechanism 21 mainly comprises a release member 22 and a lever member 23. The release member 22 includes a drive member 24 extending in the axial direction and a support portion forming member 25. As shown in FIG. 3, the driving member 24 is a substantially cylindrical member, and includes an annular seat portion 48 and a plurality of axial extension portions 49 extending from the seat portion 48 toward the transmission in the axial direction. .
An end of the seat 48 in the axial direction on the engine side is in contact with a groove 19 a formed on an outer peripheral edge of the first pressure plate 19 on the axial transmission side. In addition, the seat 48
Is positioned in the radial direction by contacting the outer peripheral surface of the groove 19a. Thus, the annular seating portion 48
Is provided, the posture of the release member 22 with respect to the first pressure plate 19 is stabilized. As shown in FIGS. 1 and 2, the axial extension 49 penetrates in the axial direction through the axial through hole 47 of the friction drive plate 8, and the distal end is closer to the axial transmission side end of the friction drive plate 8. Further protruding. The distal end of the axial extension portion 49 is bent inward in the radial direction and further bent portion 5 extending in the axial direction.
It is 0. The support portion forming member 25 is a member for forming an annular support portion on the release member 22, and is easily detachable from the release member 22 from the axial transmission. The support portion forming member 25 is a substantially annular sheet metal member, and includes a disc-shaped portion 51 and a tubular portion 52 extending from the outer peripheral end to the transmission side in the axial direction. The disk-shaped portion 51 is formed with an annular projection 54 projecting toward the transmission in the axial direction.
The protrusion 54 is located on the outer peripheral side of the protrusion 56. The tip of the cylindrical portion 52 protrudes to the outer peripheral side of the bent portion 50. In addition, a bent portion 53 that is cut and bent and abuts on the inner peripheral side of the bent portion 50 is formed in the tubular portion 52.
The bent portion 53 is located in the middle of the bent portion 50 in the rotation direction. In this manner, the bent portion 50 is sandwiched between the cylindrical portion 52 and the bent portion 53 in the radial direction, so that the support portion forming member 25 is moved in the axial transmission with respect to the tip of each axial extension portion 49. It is detachable on the side, but is immovably engaged in the radial and other directions.

The lever member 23 is an annular and disk-shaped plate member. It is preferable that the lever member 23 has, for example, a slit formed alternately from the inner peripheral edge and the outer peripheral edge of the disc-shaped plate so as to have almost no elastic function and simply function as a lever. The outer peripheral end of the lever member 23 is in contact with the projecting portion 54 of the supporting portion forming member 25 from the axial transmission side, and the inner peripheral portion is in contact with the projecting portion 56 of the clutch cover 9 from the axial engine side. . In the structure described above, when the inner peripheral end of the lever member 23 is moved toward the transmission in the axial direction, the outer peripheral end of the lever member 23 rotates toward the engine in the axial direction with the protrusion 56 of the clutch cover 9 as a fulcrum. Then, the release member 22 is moved toward the engine in the axial direction. As a result, the first pressure plate 19 overcomes the biasing force from the cone spring 20 and moves away from the first frictional connection portion 44.

The first drive mechanism 64 is a mechanism for performing a clutch release operation on the first clutch disc assembly 13 by driving the lever member 23. The first drive mechanism 64 mainly includes a release bearing 67, a hydraulic cylinder 68, and a first hydraulic circuit 69. The release bearing 67 mainly includes an inner race, an outer race, and a plurality of rolling elements disposed therebetween, and can receive a radial load and a thrust load. A cylindrical retainer 71 is mounted on the outer race of the release bearing 67. The retainer 71 includes a cylindrical portion that contacts the outer peripheral surface of the outer race, a first flange that extends radially outward from an axial engine end of the cylindrical portion, and a radially inner side from an axial transmission side end of the cylindrical portion. And a second flange extending to the outer race and abutting the axial transmission side surface of the outer race. On the first flange, an annular support portion is formed at the radially inner end of the lever member 23 so as to abut from the engine side in the axial direction.

The hydraulic cylinder 68 includes a hydraulic chamber component 79
And a piston 72. The hydraulic chamber constituent member 79 includes a cylindrical piston 7 arranged on the inner peripheral side thereof.
2 constitutes a hydraulic chamber. The hydraulic pressure can be supplied from the first hydraulic circuit 69 into the hydraulic chamber. The piston 72 is a substantially cylindrical member, and its inner peripheral surface is supported by a hydraulic cylinder 77 described later. Further, the piston 72 has a flange that comes into contact with the inner race of the release bearing 70 from the engine side in the axial direction. In this state, when the hydraulic oil in the hydraulic chamber is drained from the first hydraulic circuit 69, the piston 72 moves the release bearing 70 toward the transmission in the axial direction.

The second clutch disk assembly 14 is a mechanism for outputting a torque to the second input shaft 4 of the transmission. The second clutch disc assembly 14 has a second friction coupling portion 45 on the outer peripheral portion. The second friction connecting portion 45 is arranged near the second friction surface 8b of the friction driving plate 8, that is, on the engine side of the friction driving plate 8 in the axial direction. The second clutch disk assembly 14 has a damper including a plurality of springs and a friction generating mechanism. Further, the inner peripheral portion of the second clutch disc assembly 14
The input shaft 4 is in spline engagement.

Next, the second clutch mechanism 17 will be described. The second clutch mechanism 17 is a mechanism for urging the second friction coupling portion 45 of the second clutch disc assembly 14 against the friction drive plate 8 and releasing the urging. The second clutch mechanism 17 mainly includes a second pressure plate 27 and a diaphragm spring. The second pressure plate 27 is an annular member arranged close to the second friction coupling portion 45 of the second clutch disk assembly 14 on the axial transmission side. The second pressure plate 27 is formed of a clutch cover 9 or a friction drive plate 8 by a plate (not shown) or the like.
Are fixed so as to rotate integrally with each other and to be movable in the axial direction. The diaphragm spring 28 is a substantially disk-shaped and annular plate member, and has an outer peripheral elastic portion 28a and a plurality of lever portions 28b extending from the inner peripheral end to the inner peripheral side. The outer peripheral end of the elastic portion 28 a is supported by the support portion 58 of the clutch cover 9, and the inner peripheral end is supported by the support portion 59 of the second pressure plate 27. Elastic part 2
8a is compressed in the axial direction, thereby applying an urging force to the second pressure plate 27 toward the engine in the axial direction. A stop plate 42 is fixed to the transmission side of the pressure plate 27 in the axial direction by bolts 43. The stop plate 42
It extends from between the plurality of lever portions 28b and abuts on the inner peripheral end of the elastic portion 28a from the transmission side in the axial direction. Accordingly, when the inner peripheral end of the lever portion 28b is moved toward the transmission in the axial direction, the elastic portion 28
The inner peripheral end of a moves toward the transmission in the axial direction, releases the urging force on the pressure plate 27, and moves the pressure plate 27 toward the transmission in the axial direction.

The second drive mechanism 65 drives the diaphragm spring 28 so that the second clutch disc assembly 1
4 is a mechanism for performing a clutch release operation. The second drive mechanism 65 mainly includes the release bearing 7
6, a hydraulic cylinder 77, and a second hydraulic circuit 78. The release bearing 76 mainly includes an inner race, an outer race, and a plurality of rolling elements disposed therebetween, and can receive a radial load and a thrust load. A cylindrical retainer 80 is mounted on the outer race of the release bearing 76. The retainer 80 includes a cylindrical portion that abuts the outer peripheral portion of the outer race, a first flange extending radially outward from an axial engine side end of the cylindrical portion, and a radially inner side from an axial transmission side end of the cylindrical portion. The second race extends in contact with the surface on the axial transmission side of the outer race.
And a flange. On the first flange, an annular support portion is formed at the radially inner end of the lever portion 28b from the engine side in the axial direction. The hydraulic cylinder 77 includes a piston 81 and a hydraulic chamber component 82. The hydraulic chamber forming member 82 forms a hydraulic chamber between the hydraulic chamber forming member 82 and the piston 81 arranged on the inner peripheral side. The hydraulic pressure can be supplied from the second hydraulic circuit 78 into the hydraulic chamber. The piston 81 is a cylindrical member, and its inner peripheral surface is supported by the outer peripheral surface of a member (not shown) extending from the transmission side. Further, the piston 81 has a flange that comes into contact with the inner race of the release bearing 76 from the engine side in the axial direction. When the hydraulic oil in the hydraulic chamber is drained from the second hydraulic circuit 78 in this state, the piston 81 moves toward the transmission in the axial direction to move the release bearing 76. As described above, the first clutch mechanism 16 and the second clutch mechanism 17 are driven by the independent first and second drive mechanisms 64 and 65, respectively.

In the first clutch mechanism 16, the first
Since the urging force to the first pressure plate 19 is given by the cone spring 20 which is a spring member, it is not necessary to form an oil passage or a hydraulic oil chamber in a structure corresponding to the flywheel 7 or the clutch cover 9. Therefore, the overall structure of the clutch device 1 is simplified, the number of parts is reduced, and the overall size can be reduced.

In particular, although the clutch cover 9 is an integral member as a whole, it has a projection 56 for the first clutch mechanism 16 and a support 58 for the second clutch mechanism 17. As a result, the structure is simple and the number of parts can be reduced, contributing to space saving. [Modification] The present invention is not limited to the above embodiment.

For example, in the first clutch mechanism and the second clutch mechanism, the clutch release operation is a structure in which a pull type operation of pulling the inner peripheral side with the lever member toward the transmission in the axial direction is performed. Is also good. Further, in the second clutch mechanism 17, a diaphragm spring having both functions of an elastic member and a lever member is used, but a structure in which both members have both functions may be used.

Further, the diaphragm spring of the second clutch mechanism is a lever member that does not apply its own elastic force to the second pressure plate, so that the pressure plate is urged by an axial force from the second drive mechanism. It is good also as a structure which does. Further, the flywheel may be a combination of, for example, a disk-shaped member and an inertia member fixed to the outer peripheral side thereof, instead of an integral member.

The protruding portion for supporting the spring and the lever may be not annular but may be divided into a plurality in the circumferential direction.

[0035]

In the clutch device according to the present invention, since the first pressure plate is urged toward the first friction coupling portion by the elastic member, an oil passage for driving the first pressure plate and a hydraulic operating chamber are provided. Need not be provided, and the overall structure of the clutch device is simplified.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a clutch device to which an embodiment of the present invention is applied.

FIG. 2 is a partial cross-sectional plan view illustrating a configuration of a clutch cover.

FIG. 3 is a view for explaining a release member in FIG. 1;
III arrow view.

FIG. 4 is a partial perspective view of a clutch cover.

[Brief description of reference numerals]

 DESCRIPTION OF SYMBOLS 1 Clutch device 2 Crankshaft 3 1st input shaft 4 2nd input shaft 7 Flywheel 8 Friction drive plate 9 Clutch cover 13 1st clutch disk assembly 14 2nd clutch disk assembly 16 1st clutch mechanism 17 2nd clutch mechanism 39 First extension part 40 Second extension part 41 Second member

Claims (10)

[Claims] 1. A clutch device capable of separately performing torque transmission / interruption operations from a crankshaft of an engine to first and second input shafts of a transmission, wherein a first friction on an axial engine side is provided. A friction coupling member having a surface and a second friction surface on the axial transmission side, to which a torque is input from the crankshaft; and a first friction coupling portion disposed close to the first friction surface. A first torque transmitting shaft to the first input shaft;
A second friction coupling portion disposed in close proximity to the second friction surface, the second friction coupling portion being configured to transmit torque to the second input shaft;
A clutch disc assembly; a first pressure plate disposed close to the first engine in the axial direction of the first frictional connection portion; and an elasticity for biasing the first pressure plate toward the first frictional connection portion. A member; a release mechanism for separating the first pressure plate from the first frictional connection portion; a second pressure plate disposed adjacent to an axial transmission side of the second frictional connection portion; A clutch mechanism for biasing and separating the pressure plate from and to the second frictional connection portion. 2. A first friction member configured to rotate integrally with the friction coupling member, and disposed so as to face the second friction surface with an interval on the transmission side in the axial direction.
The clutch according to claim 1, further comprising a clutch cover having a support portion and a second support portion, wherein the release mechanism is supported by the first support portion, and the clutch mechanism is supported by the second support portion. apparatus. 3. The clutch cover includes an annular portion, a first portion extending from the annular portion toward the transmission in the axial direction, and a first portion having the first support portion, and extending from the annular portion toward the transmission in the axial direction, the second support. The clutch device according to claim 2, further comprising a second portion having a portion. 4. The first portion has a plurality of first extensions extending from the annular portion toward the transmission in the axial direction, and an annular member fixed to the first extension to form the first support. The clutch device according to claim 3, wherein the second portion has a plurality of second extensions extending from the annular portion toward the transmission in the axial direction to form the second support portion. 5. The second extension extends radially inward with respect to the first extension, such that the second support is axially closer to the engine than the first support. The clutch device according to claim 4. 6. The release mechanism, wherein a release member having one end abutting the first pressure plate from the axial transmission side and the other end positioned near the first portion, the first support portion and the other end. And a lever member capable of moving the release member toward the engine side in the axial direction by contacting the release member. The release member has a driving member, and the driving member is supported by the first pressure plate. And a plurality of axially extending portions extending from the annular portion toward the transmission in the axial direction and penetrating the friction coupling member, wherein the plurality of axially extending portions are the plurality of second extending portions. The clutch device according to claim 5, wherein the clutch device extends between the rotation directions of the first extension portion and the radial inside of the first extension portion. 7. A release member, one end of which is in contact with the first pressure plate from the transmission side in the axial direction and the other end of which is located near the first portion, the first support portion and the other end. The clutch device according to any one of claims 1 to 5, further comprising a lever member capable of moving the release member toward the engine in the axial direction by contacting the release member. 8. The release member has a drive member, the drive member extending from the annular portion to the transmission side in the axial direction and penetrating through the friction coupling member. The clutch device according to claim 7, comprising a plurality of axial extensions. 9. The clutch device according to claim 6, wherein the drive member further has an annular contact portion fixed to a tip of the axially extending portion and contacting the lever member. 10. The clutch device according to claim 9, wherein the annular contact portion is detachable in the axial direction from the axially extending portion.