WO2012011335A1

WO2012011335A1 - Clutch device

Info

Publication number: WO2012011335A1
Application number: PCT/JP2011/063585
Authority: WO
Inventors: 範久植之原
Original assignee: 株式会社エクセディ
Priority date: 2010-07-19
Filing date: 2011-06-14
Publication date: 2012-01-26
Also published as: JP4975877B2; JP2012042047A

Abstract

A clutch device (1) is provided with an input rotation body (10), a first pressure plate (39), a first diaphragm spring (71), a first adjustment bolt (153), a first adjustment spring (154), a first slide bush (152), a first drive plate (73), and a first washer (156). When rotated relative to the first pressure plate (39), the first adjustment bolt (153) moves in the axial direction relative to the first pressure plate (39). The first adjustment spring (154) applies a rotational force to the first adjustment bolt (153). The first slide bush (152) is disposed so as to be able to restrict the movement of the first adjustment bolt (153) relative to the first pressure plate (39). The first washer (156) is sandwiched between a first detection rod (159) and the first drive plate (73).

Description

Clutch device

The present invention relates to a clutch device for transmitting power from an engine to a transmission.

Automatic transmission (AT) is known as a means for automatically shifting a vehicle. For example, a combination of a torque converter, a plurality of planetary gears, and a clutch has become mainstream in recent years. The stepless transmission operation of the torque converter and the automatic switching of the plurality of clutches make the AT unnecessary to operate the clutch by the driver at the time of start, stop and shift as required for the manual transmission (MT).

However, since the torque converter transmits power through fluid, AT has lower power transmission efficiency than MT which directly couples the input side and the output side and transmits torque. Therefore, the AT has the advantage of reducing the effort of the driver, but has the disadvantage of reducing the fuel consumption of the vehicle.

Therefore, an automatic transmission (AMT) based on the structure of the MT has been proposed for the purpose of eliminating the need for clutch operation while securing the MT transmission efficiency. In this automatic transmission, MT clutch operation and transmission gear shift operation are automated. This automatic transmission can eliminate the need for clutch operation while securing the same transmission efficiency as that of the conventional MT.

However, since the clutch is disengaged during the shift operation as in the MT, torque transmission is temporarily interrupted. While torque transmission is interrupted, the vehicle travels with inertia without acceleration. Such a torque loss greatly affects the acceleration performance of the vehicle and is likely to cause the driver to feel uncomfortable.

Then, in order to solve the problem of this torque exhaustion, the automatic transmission which employ | adopted the twin clutch apparatus is proposed (for example, refer patent document 1).

Japanese Patent Laid-Open No. 2002-174262

As a clutch device of this type, a wet device has been proposed in consideration of wear of a clutch disk.

However, in the case of the wet method, the structure is complicated because the seal structure needs to be realized.

Therefore, a dry clutch device has been proposed.

However, in the case of the dry type, the structure can be simplified as compared to the wet type, but there is a possibility that the performance of the clutch device may fluctuate due to the wear of the clutch disc.

An object of the present invention is to provide a clutch device capable of suppressing fluctuation of performance due to wear.

A clutch device according to the present invention is a device for transmitting power from an engine to a first input shaft and a second input shaft of a transmission, the input rotating body, a first pressure plate, and a second pressure plate; First clutch disc assembly, second clutch disc assembly, first drive mechanism, second drive mechanism, first adjusting member, first elastic member, first detection unit, first separating member And have. The input rotor receives power from the engine. The first pressure plate is integrally rotatably and axially movable with the input rotary body. The second pressure plate is integrally rotatably and axially movable with the input rotary body. The first clutch disc assembly is disposed between the input rotating body and the first pressure plate, and is provided to be connectable to the first input shaft. The second clutch disc assembly is disposed between the input rotating body and the second pressure plate, and is provided to be connectable to the second input shaft. The first drive member is provided to be able to press the first pressure plate in the axial direction. The second drive member is provided to be able to press the second pressure plate in the axial direction. The first adjustment member is disposed to transmit the pressing force of the first drive member to the first pressure plate, and moves in the axial direction with respect to the first pressure plate when it rotates with respect to the first pressure plate. The first elastic member applies a rotational force to the first adjustment member. The first detection unit is supported by the first pressure plate so as to be movable in the axial direction with respect to the first pressure plate, and is arranged so as to be able to regulate the movement of the first adjustment member with respect to the first pressure plate. The first separating member is sandwiched between the first detection unit and the first drive mechanism.

With this clutch device, fluctuation in performance due to wear can be suppressed.

Cross section of the clutch device Sectional view of the clutch device (upper half in FIG. 1) Sectional view of the clutch device (lower half of FIG. 1) An illustration of the function of the first and second washers (A) Diagram showing the relationship between displacement of pressure plate and reaction force of strap plate, (B) Load characteristics of washer Partial cross-sectional view around the first wear tracking mechanism (release state) Partial cross section around the first wear tracking mechanism (engaged state) Partial cross-sectional view around the first wear tracking mechanism (release state (before tracking)) Partial cross-sectional view around the first wear tracking mechanism (release state (after tracking)) Partial sectional view around the second wear tracking mechanism (release state) Partial sectional view around the second wear tracking mechanism (engaged state) Partial cross-sectional view around the second wear tracking mechanism (release state (before tracking)) Partial cross-sectional view around the second wear tracking mechanism (release state (after tracking)) Partial cross-sectional view around the first wear tracking mechanism (other embodiments) Partial cross-sectional view around the second wear tracking mechanism (other embodiments) Sectional view of clutch device (other embodiments) Sectional view of clutch device (other embodiments)

<Overall Configuration of Clutch Device>
As shown in FIGS. 1 to 3, the clutch device 1 is a device for transmitting power from the engine to the first input shaft 91 and the second input shaft 92 of the transmission, and includes a damper mechanism 80 and an input rotor 10, a first pressure plate 39, a second pressure plate 49, a first clutch disk assembly 5, a second clutch disk assembly 6, a drive mechanism 7, and a plurality of first wear tracking mechanisms 100; And a plurality of second wear tracking mechanisms 200. A first clutch C1 is constituted by the input rotary body 10, the first pressure plate 39, the first clutch disc assembly 5, and the first drive mechanism 7A of the drive mechanism 7. A second clutch C2 is constituted by the input rotary body 10, the second pressure plate 49, the second clutch disk assembly 6, and the second drive mechanism 7B of the drive mechanism 7. The first clutch C1 and the second clutch C2 are so-called normally open clutches. The first clutch C1 transmits power at the first, third and fifth speeds, and the second clutch C2 transmits power at the second and fourth speeds.

<Input rotating body 10>
As shown in FIGS. 1 to 3, the damper mechanism 80 is a member to which power is transmitted from the engine, and is connected to the crankshaft 99 via a flexible plate 93. The damper mechanism 80 includes a first input plate 84, a second input plate 86, a plurality of spring assemblies 85, an output plate 87, a first seal member 87a, and a second seal member 87b. There is.

The first input plate 84 and the second input plate 86 are fixed by a plurality of rivets 84a. Further, an annular inertia member 82 is fixed to the outer peripheral portion of the first input plate 84 and the second input plate 86 by a rivet 84 a. An annular ring gear 83 is fixed to the inertia member 82. Further, an outer peripheral portion of the flexible plate 93 is fixed to the ring gear 83 by a bolt 81 a. The bolt 81a is tightened from the engine side. On the other hand, the inner peripheral portion of the flexible plate 93 is fixed to the crankshaft 99 by a bolt 99a. The bolt 99a is tightened from the transmission side. A bearing 98 is fixed to the end of the crankshaft 99, and the tip of the first input shaft 91 is rotatably supported by the bearing 98.

A spring assembly 85 is disposed between the first input plate 84 and the second input plate 86 so as to be elastically deformable. Specifically, the spring assembly 85 includes a first spring 86a, a second spring 86b disposed on the inner peripheral side of the first spring 86a, and a spring seat 85c. The spring seat 85c is attached to the end of the first spring 86a and the second spring 86b. The spring seat 85 c can prevent the first spring 86 a from sliding on the first input plate 84 and the second input plate 86. The end of the spring assembly 85 is rotationally supported by the first input plate 84 and the second input plate 86.

The output plate 87 is disposed between the first input plate 84 and the second input plate 86 and supports the end of the spring assembly 85 in the rotational direction. The inner peripheral portion of the output plate 87 is fixed to a first flywheel 3 (described later) of the input rotary body 10 by a rivet 87 c.

<Input rotating body 10>
The input rotating body 10 mainly includes a first flywheel 3 and a second flywheel 4.

(1) 1st flywheel 3
As shown in FIGS. 1 to 3, the first flywheel 3 has an annular first disc portion 33 and a plurality of first opposing portions 31. The first clutch disc assembly 5 is pressed against the first disc portion 33. The first opposing portion 31 protrudes outward in the radial direction from the outer peripheral portion of the first disc portion 33, and is disposed at an interval in the circumferential direction. The first opposing portion 31 is disposed at substantially the same circumferential position as the first wear following mechanism 100, and is disposed to axially face the first slide bush 152 (described later) of the first wear following mechanism 100. ing. At the time of connection of the first clutch C1, a first slide bush 152 (described later) of the first wear following mechanism 100 abuts on the first facing portion 31.

(2) 2nd flywheel 4
As shown in FIGS. 1 to 3, the second flywheel 4 is fixed to the first flywheel 3 and rotates integrally with the first flywheel 3. The second flywheel 4 is rotatably supported by a bearing 44. The second flywheel 4 has a second disc portion 43 and a plurality of second opposing portions 41.

The second disc portion 43 is spaced apart from the first disc portion 33 in the axial direction. The first clutch disc assembly 5, the second clutch disc assembly 6, the first pressure plate 39 and the second pressure plate 49 are disposed between the second disc portion 43 and the first disc portion 33 in the axial direction. It is done. The second clutch disc assembly 6 is pressed against the second disc portion 43. The second facing portion 41 protrudes outward in the radial direction from the outer peripheral portion of the second disc portion 43. The second opposing portions 41 are spaced apart in the circumferential direction. The second opposing portion 41 is disposed at substantially the same circumferential position as the second wear follow-up mechanism 200, and is disposed axially opposed to a second slide bush 252 (described later) of the second wear follow-up mechanism 200. ing. When the second clutch C2 is connected, a second slide bush 252 (described later) of the second wear follow-up mechanism 200 abuts on the second facing portion 41. Further, the second disk portion 43 is formed with a support protrusion 43 a that protrudes to the transmission side. The support projection 43 a is in contact with the second diaphragm spring 72.

<First pressure plate 39>
As shown in FIGS. 1 to 3, the first pressure plate 39 is disposed in the input rotary body 10, and is disposed so as to be integrally rotatable and axially movable with respect to the first disc portion 33. There is. Specifically, the first pressure plate 39 has a generally disc-shaped first main body 39 b and a plurality of first supports 39 d.

The first main body portion 39 b is disposed to face the first disc portion 33 in the axial direction. The plurality of first support portions 39d protrude outward in the radial direction from the first main body portion 39b, and are arranged at an equal pitch in the circumferential direction. In the first support portion 39d, a first support hole 163b and a first screw hole 163a are formed, and a first wear following mechanism 100 is provided.

The first pressure plate 39 is connected to the input rotator 10 by a plurality of first strap plates 38 (see FIG. 4). The first strap plate 38 is formed of, for example, a plate-like spring material, and elastically connects the first pressure plate 39 to the input rotary body 10 in the axial direction. Further, the first strap plate 38 couples the first pressure plate 39 to the first flywheel 3 so as to be integrally rotatable.

As shown in FIG. 5A, when the first pressure plate 39 approaches the first flywheel 3, the reaction force F1 of the first strap plate 38 increases. On the other hand, when the first pressure plate 39 moves away from the first flywheel 3, the reaction force F1 decreases.

When the first clutch disc assembly 5 is not worn, the first pressure plate 39 is disposed at the clutch engagement position S11 in the clutch engagement state, and the first pressure plate 39 is disposed at the release position S21 in the release state. There is.

On the other hand, when the first clutch disc assembly 5 is worn to the use limit, the first pressure plate 39 is disposed at the clutch connection position S12 in the clutch connected state. As described later, even if the first clutch disk assembly 5 is worn, the release stroke becomes constant by the first wear following mechanism 100, so the first pressure plate 39 is disposed at the release position S22 in the release state.

As shown in FIG. 5A, when the first clutch disk assembly 5 is worn, the position of the first pressure plate 39 in the clutch engagement state approaches the first flywheel 3. Therefore, as the wear of the first clutch disk assembly 5 progresses, the reaction force F1 in the clutch connected state and in the release state both increase. In FIG. 4, the first strap plate 38 is schematically described.

<Second pressure plate 49>
As shown in FIGS. 1 to 3, the second pressure plate 49 is disposed in the input rotary body 10, and is disposed so as to be integrally rotatable and axially movable with respect to the second disc portion 43. There is. Specifically, the second pressure plate 49 has a substantially disk-shaped second main portion 49 b and a plurality of second support portions 49 d.

The second main body portion 49 b is disposed to face the second disc portion 43 in the axial direction. The plurality of second support portions 49d protrude outward in the radial direction from the second main body portion 49b, and are arranged at an equal pitch in the circumferential direction. A second support hole 263b and a second screw hole 263a are formed in the second support portion 49d, and a second wear follow-up mechanism 200 is provided.

The second pressure plate 49 is connected to the input rotating body 10 by a plurality of second strap plates 48 (see FIG. 4). The second strap plate 48 is formed of, for example, a plate-like spring material, and elastically connects the second pressure plate 49 to the input rotary body 10 in the axial direction. In addition, the second strap plate 48 couples the second pressure plate 49 to the second flywheel 4 so as to be integrally rotatable.

As shown in FIG. 5A, when the second pressure plate 49 approaches the second flywheel 4, the reaction force F1 of the second strap plate 48 increases. On the other hand, when the second pressure plate 49 moves away from the second flywheel 4, the reaction force F1 decreases.

As in the case of the first pressure plate 39, when the second clutch disk assembly 6 is not worn, the second pressure plate 49 is disposed at the clutch connection position S11 in the clutch connected state, and in the release state, the second The pressure plate 49 is disposed at the release position S21.

On the other hand, when the second clutch disk assembly 6 is worn to the use limit, the second pressure plate 49 is disposed at the clutch connection position S12 in the clutch connected state. As described later, even if the second clutch disk assembly 6 is worn, the release stroke becomes constant by the second wear following mechanism 200, so the second pressure plate 49 is disposed at the release position S22 in the release state.

As shown in FIG. 5A, when the second clutch disk assembly 6 wears, the position of the second pressure plate 49 in the clutch engagement state approaches the second flywheel 4. Therefore, as the wear of the second clutch disk assembly 6 progresses, the reaction force F1 in the clutch connected state and in the release state both increase. In FIG. 4, the second strap plate 48 is schematically described.

<First clutch disc assembly 5>
As shown in FIGS. 1 to 3, the first clutch disk assembly 5 is an assembly for transmitting power from the input rotating body 10 to the first input shaft 91, and is connected to the first input shaft 91. . The first clutch disc assembly 5 includes a first friction portion 57, a first connection ring 53, and a first hub 51.

The first friction portion 57 is disposed axially between the first disc portion 33 and the first pressure plate 39. The first friction portion 57 is provided slidably with the input rotary body 10 and the first pressure plate 39. The first connection ring 53 is fixed to the inner peripheral portion of the first friction portion 57. The first hub 51 is connected to the first input shaft 91. A first snap ring 59 is fixed to the first input shaft 91. The axial movement of the first hub 51 with respect to the first input shaft 91 is restricted by the first snap ring 59. The first connection ring 53 is supported by the first hub 51 so as to be integrally rotatable and axially movable.

<Second clutch disc assembly 6>
As shown in FIGS. 1 to 3, the second clutch disc assembly 6 is an assembly for transmitting power from the input rotating body 10 to the second input shaft 92, and is connected to the second input shaft 92. . The second clutch disk assembly 6 includes a second friction portion 67, a second connection ring 63, an intermediate member 62, and a second hub 61.

The second friction portion 67 is disposed axially between the second disc portion 43 and the second pressure plate 49. The second friction portion 67 is provided slidably with the input rotary body 10 and the second pressure plate 49. The second connection ring 63 is fixed to the inner circumferential portion of the second friction portion 67. The second hub 61 is connected to the second input shaft 92. The second snap ring 69 is fixed to the second input shaft 92. The axial movement of the second hub 61 with respect to the second input shaft 92 is restricted by the second snap ring 69. The intermediate member 62 is fixed to the second hub 61. The second connection ring 63 is supported by the intermediate member 62 rotatably and axially movably.

<Drive mechanism 7>
The drive mechanism 7 has a first drive mechanism 7A constituting a first clutch C1 and a second drive mechanism 7B constituting a second clutch C2.

(1) 1st drive mechanism 7A
The first drive mechanism 7A is a mechanism for operating the power transmission of the first clutch C1, and transmits an axial pressing force to the first pressure plate 39. As shown in FIGS. 1 to 3, the first drive mechanism 7A includes a first diaphragm spring 71, an annular support plate 75, an annular first drive plate 73, a plurality of connecting members 75b, and a plurality of springs. And 75d.

The first diaphragm spring 71 has an annular first connecting portion 71a, and a plurality of first lever portions 71b extending radially inward from the first connecting portion 71a and spaced apart in the circumferential direction. ing.

The support plate 75 is fixed to the second disc portion 43 via a plurality of connecting members 75b. The support plate 75 has a first protrusion 75a. The first protrusion 75 a is in contact with the outer peripheral portion of the first diaphragm spring 71. The first drive plate 73 is disposed so as to be axially movable with respect to the first pressure plate 39, and is sandwiched between the first adjustment bolt 153 and the first diaphragm spring 71. The first drive plate 73 includes an annular second main body 73c, a projection 73a protruding from the second main body 73c toward the transmission, and a plurality of second drives extending from the outer peripheral portion of the second main body 73c toward the engine And a protruding portion 73 b. The first drive plate 73 is pushed toward the support plate 75 by the spring 75 d. Thus, the first diaphragm spring 71 is sandwiched between the support plate 75 and the first drive plate 73. The second drive protrusions 73 b are spaced apart in the circumferential direction. The second drive protrusion 73 b is disposed at a position corresponding to the first wear follow-up mechanism 100, and can be in contact with a first adjustment bolt 153 (described later) of the first wear follow-up mechanism 100. Furthermore, the first drive plate 73 has a first hole 73e into which a first support protrusion 55c (described later) is inserted.

(2) Second drive mechanism 7B
The second drive mechanism 7B is a mechanism for operating the power transmission of the second clutch C2, and transmits an axial pressing force to the second pressure plate 49. As shown in FIGS. 1 to 3, the second drive mechanism 7B includes a second diaphragm spring 72 (an example of a second drive member) and an annular second drive plate 74.

The second diaphragm spring 72 has an annular second connecting portion 72a, and a plurality of second lever portions 72b radially extending from the second connecting portion 72a and spaced apart in the circumferential direction. There is.

The second drive plate 74 includes an annular third main body 74c, a third projection 74a projecting toward the engine, and a plurality of third drive projections 74b projecting outward from the outer circumferential portion of the third main body 74c. And a plurality of openings 74f. The third drive protrusions 74 b are spaced apart in the circumferential direction. The third drive projection 74b is disposed between the adjacent second drive projections 73b. The opening 74 f is formed on the outer peripheral portion of the third main portion 74 c. The second drive projection 73b is inserted into the opening 74f.

<First Wear Follow-up Mechanism 100>
The plurality of first wear tracking mechanisms 100 are mechanisms for suppressing the deterioration of the performance of the clutch device 1 due to the wear of the first friction portion 57 of the first clutch C1, and are arranged at equal intervals in the circumferential direction . Specifically, as shown in FIG. 6, each first wear-following mechanism 100 includes a first adjustment bolt 153 (an example of a first adjustment member or a second adjustment member) and a first adjustment spring 154 (a first elastic member). Or an example of a second elastic member), a first slide bush 152 (an example of a first detection member or a second detection member), and a first intermediate rod 155 (an example of a first auxiliary member or a second auxiliary member); And a first washer 156 (an example of a first separating member or a second separating member). A first detection rod 159 (an example of a first detection unit or a second detection unit) is configured by the first slide bush 152 and the first intermediate rod 155.

The first adjustment bolt 153 is disposed to transmit the pressing force of the first diaphragm spring 71 to the first pressure plate 39, and is attached to the first pressure plate 39. Specifically, the first adjustment bolt 153 has a substantially cylindrical first bolt main body 153a having a first screw portion 153c, and an annular first contact portion 153b projecting radially inward from the first bolt main body 153a. And.

Since the first bolt main body 153a is screwed into the first screw hole 163a, the first bolt main body 153a moves in the axial direction with respect to the first pressure plate 39 when it rotates with respect to the first pressure plate 39. A rotational force is always applied to the first bolt main body 153 a by the first adjustment spring 154. More specifically, a rotational force is applied to the first adjustment bolt 153 by the first adjustment spring 154 so that the first adjustment bolt 153 moves to the transmission side with respect to the first pressure plate 39.

The first contact portion 153 b is an annular portion, and axially contacts a first restricting portion 152 b (described later) of the first slide bush 152. The first slide bush 152 is inserted into the first contact portion 153 b.

The first slide bush 152 is a member for restricting the movement of the first adjustment bolt 153 to the engine side, and is supported by the first pressure plate 39 so as to be axially movable with respect to the first pressure plate 39. There is. The first slide bush 152 projects from the first pressure plate 39 toward the engine. The transmission-side end of the first slide bush 152 is inserted into the first bolt body 153 a of the first adjustment bolt 153. The first slide bush 152 is disposed concentrically with the first adjustment bolt 153.

The first slide bush 152 has a generally cylindrical first slide bush main body 152a, and a generally annular first restricting portion 152b projecting radially outward from the first slide bush main body 152a. The first slide bush main body 152a is inserted into the first support hole 163b in a state where the outer diameter is reduced. Specifically, the first slide bush main body 152a is formed with a first slit 152c elongated in the axial direction. Since the first slit 152c is formed, the first slide bush main body 152a is elastically deformable in the radial direction. Since the first slide bush main body 152 a is tightly fitted in the first support hole 163 b of the first pressure plate 39, the first slide bush 152 moves or rotates in the axial direction with respect to the first pressure plate 39. If so, a relatively large sliding resistance is generated between the first slide bush 152 and the first pressure plate 39. Therefore, basically, the first slide bush 152 moves in the axial direction integrally with the first pressure plate 39, but when a relatively large axial force acts on the first slide bush 152, the first pressure The first slide bush 152 moves in the axial direction with respect to the plate 39.

The first restricting portion 152b is disposed inside the first bolt main body 153a, and is disposed on the transmission side of the first contact portion 153b. The first restricting portion 152 b is in contact with the first contact portion 153 b in the axial direction. Since the first slit 152c extends to the first restricting portion 152b, the first restricting portion 152b is C-shaped. A first hooking pin 155h (described later) fixed to the first intermediate rod 155 is inserted into the first slit 152c. Thus, the rotation of the first intermediate rod 155 with respect to the first pressure plate 39 is restricted by the first slide bush 152. The first intermediate rod 155 is axially movable relative to the first slide bush 152.

The first adjustment spring 154 is a torsion coil spring and applies a rotational force to the first adjustment bolt 153. The first adjustment spring 154 applies a rotational force to the first adjustment bolt 153 so that the first adjustment bolt 153 moves toward the transmission with respect to the first pressure plate 39.

Specifically, the first adjustment spring 154 has a first spring main body 154a, a first end 154b, and a second end 154c. The first spring main body 154 a is a portion that generates a rotational force, and is disposed on the inner peripheral side of the first adjustment bolt 153. The first end 154 b protrudes from the end of the first spring main body 154 a on the engine side, and is hooked to the first adjustment bolt 153.

For example, the first end 154 b is inserted into the first hooking hole 153 d of the first adjustment bolt 153. The second end 154c protrudes from the end of the first spring main body 154a on the first slide bush 152 side, and is hooked on the first detection rod 159 (more specifically, the first intermediate rod 155). For example, the second end 154 c is inserted into the first support hole 155 f of the first intermediate rod 155. The rotation of the first intermediate rod 155 is regulated by the first slide bush 152. Specifically, the first hooking pin 155h is press-fit into the first fixing hole 155g of the first intermediate rod 155, and the tip of the first support hole 155f is inserted into the first slit 152c of the first slide bush 152. ing. Since the first slide bush 152 is tightly fitted in the first support hole 163b, when the first slide bush 152 moves or rotates in the axial direction with respect to the first pressure plate 39, the first slide bush 152 is A relatively large sliding resistance occurs between 152 and the first pressure plate 39. Since the rotational force that the first adjustment spring 154 applies to the first adjustment bolt 153 is not large enough to rotate the first slide bush 152, the first slide bush 152 is a member for the first intermediate rod 155 and the first The rotation of the adjustment spring 154 can be restricted.

The first intermediate rod 155 is disposed concentrically with the first adjustment bolt 153 and the first slide bush 152. Specifically, as shown in FIG. 6, the central axis of the first intermediate rod 155, the first adjustment bolt 153, and the first slide bush 152 is a line B1.

The first intermediate rod 155 has a first intermediate rod main body 155 a axially abutting on the first slide bush 152, a first insertion portion 155 b inserted in the first slide bush 152, and an axial direction of the first washer 156. It has the 1st support contact part 155c to contact, and the 1st support projection part 155d. The first intermediate rod 155 is disposed inside the first adjustment bolt 153. The first insertion portion 155b protrudes from the first intermediate rod main body 155a to the first disc portion 33 side. The outer dimensions of the first insertion portion 155b and the first support contact portion 155c are smaller than the outer dimensions of the first intermediate rod main body 155a. The first support contact portion 155 c protrudes from the first intermediate rod main body 155 a toward the first drive plate 73. The first support protrusion 155d radially supports the first washer 156, and has a large diameter portion 155e having a large outer diameter. The large diameter portion 155 e prevents the first washer 156 from falling off.

The first washer 156 is a member that generates an elastic force so that the first detection rod 159 and the first drive plate 73 are separated. The first washer 156 is an annular plate made of a spring material and has a first opening 156e. The first support protrusion 155 d of the first intermediate rod 155 is inserted into the first opening 156 e. The first washer 156 is disposed inside the first adjustment bolt 153. The outer diameter of the first washer 156 is larger than the inner diameter of the first hole 73e of the first drive plate 73, and the outer peripheral portion of the first washer 156 is in contact with the outer peripheral portion of the first hole 73e.

The first washer 156 is sandwiched between the first intermediate rod 155 (more specifically, the first support abutment 155 c) and the first drive plate 73. As shown in FIG. 4, in a state where the first adjustment bolt 153 is in contact with the first drive plate 73, the first washer 156 is an axial gap between the first intermediate rod 155 and the first drive plate 73. At the time of engagement in a state where the first friction portion 57 is worn, the first detection rod 159 is pushed in, so that deflection occurs in the first washer 156, and the first washer 156 It will be in the state shown in 7.

As shown in FIG. 5B, the elastic force F2 of the first washer 156 is proportional to the amount of deflection. For example, in a state where the first adjustment bolt 153 is in contact with the first drive plate 73, the amount of deflection of the first washer 156 is D, and the elastic force F2 is an elastic force F20. Assuming that the reaction force F1 of the first strap plate 38 at the release position S22 when the first clutch disk assembly 5 is worn as shown in FIG. 5A is the reaction force F10, the wear of the first friction portion 57 As a result, deflection of the first washer 156 occurs, and F2020F10. As a result, at the time of release, the first adjustment bolt 153 is forcibly pulled apart from the first drive plate 73 by the first washer 156. Since the rigidity of the first washer 156 is very high, the first adjustment bolt 153 can be forcibly pulled away from the first drive plate 73 even if the amount of wear of the first friction portion 57 is small.

Second Wear Follower Mechanism 200
The plurality of second wear tracking mechanisms 200 are mechanisms for suppressing the deterioration of the performance of the clutch device 1 due to the wear of the second friction portion 67 of the second clutch C2, and are arranged at equal intervals in the circumferential direction . The second wear tracking mechanism 200 is disposed between the first wear tracking mechanisms 100. Specifically, as shown in FIG. 10, each second wear following mechanism 200 includes a second adjustment bolt 253 (an example of a first adjustment member or a second adjustment member) and a second adjustment spring 254 (a first elastic member). Or an example of a second elastic member), a second slide bush 252 (an example of a first detection member or a second detection member), and a second intermediate rod 255 (an example of a first auxiliary member or a second auxiliary member); And a second washer 256 (an example of a first separating member or a second separating member). A second detection rod 259 (an example of a first detection unit or a second detection unit) is configured by the second slide bush 252 and the second intermediate rod 255.

The second adjustment bolt 253 is disposed to transmit the pressing force of the second diaphragm spring 72 to the second pressure plate 49, and is attached to the second pressure plate 49. Specifically, the second adjustment bolt 253 has a substantially cylindrical second bolt main body 253a having a second screw portion 253c, and an annular second contact portion 253b projecting radially inward from the second bolt main body 253a. And.

Since the second bolt body 253a is screwed into the second screw hole 263a, the second bolt body 253a moves in the axial direction with respect to the second pressure plate 49 when it rotates with respect to the second pressure plate 49. A rotational force is always applied to the second bolt body 253 a by the second adjustment spring 254. More specifically, the second adjustment spring 254 always applies a rotational force to the second bolt main body 253 a so that the second adjustment spring 254 moves to the first disc portion 33 side with respect to the second pressure plate 49. It is done. Furthermore, the second bolt main body 253a has a second tapered surface 253f, and the second tapered surface 253f is in contact with the cap portion 79b of the connecting rod 79.

The second contact portion 253 b is an annular portion, and axially contacts a second restricting portion 252 b (described later) of the second slide bush 252. The second slide bush 252 is inserted into the second contact portion 253b.

The second slide bush 252 is a member for restricting the movement of the second adjustment bolt 253 to the engine side, and is supported by the second pressure plate 49 so as to be axially movable with respect to the second pressure plate 49. There is. The second slide bush 252 projects from the second pressure plate 49 toward the engine. The transmission-side end of the second slide bush 252 is inserted into the second bolt body 253 a of the second adjustment bolt 253. The second slide bush 252 is disposed concentrically with the second adjustment bolt 253.

The second slide bush 252 has a substantially cylindrical second slide bush main body 252a, and a generally annular second restricting portion 252b projecting outward in the radial direction from the second slide bush main body 252a. The second slide bush main body 252a is inserted into the second support hole 263b in a state where the outer diameter is reduced. Specifically, a second slit 252c elongated in the axial direction is formed in the second slide bush main body 252a. Since the second slit 252c is formed, the second slide bush main body 252a is elastically deformable in the radial direction. Since the second slide bush main body 252 a is tightly fitted in the second support hole 263 b of the second pressure plate 49, the second slide bush 252 axially moves or rotates with respect to the second pressure plate 49. If so, relatively large sliding resistance occurs between the second slide bush 252 and the second pressure plate 49. Therefore, basically, the second slide bush 252 moves axially integrally with the second pressure plate 49, but when a relatively large axial force acts on the second slide bush 252, the second pressure The second slide bush 252 moves in the axial direction with respect to the plate 49.

The second restricting portion 252b is disposed inside the second bolt main body 253a, and is disposed on the first disc portion 33 side of the second contact portion 253b. The second restricting portion 252 b is in contact with the second contact portion 253 b in the axial direction. Since the second slit 252c extends to the second restricting portion 252b, the second restricting portion 252b is C-shaped. A second hooking pin 255h (described later) fixed to the second intermediate rod 255 is inserted into the second slit 252c. Thus, the rotation of the second intermediate rod 255 relative to the second pressure plate 49 is restricted by the second slide bush 252. The second intermediate rod 255 is axially movable relative to the second slide bush 252.

The second adjustment spring 254 is a torsion coil spring, and applies a rotational force to the second adjustment bolt 253. The second adjustment spring 254 applies a rotational force to the second adjustment bolt 253 so that the second adjustment bolt 253 moves to the transmission side (the second disc portion 43 side) with respect to the second pressure plate 49. There is.

Specifically, the second adjustment spring 254 has a second spring main body 254a, a first end 254b, and a second end 254c. The second spring main body 254 a is a portion that generates a rotational force, and is disposed on the inner peripheral side of the second adjustment bolt 253. The first end 254 b protrudes from the end of the second spring main body 254 a on the engine side, and is hooked to the second adjustment bolt 253.

For example, the first end 254 b is inserted into the second hooking hole 253 d of the second adjustment bolt 253. The second end 254c protrudes from the end of the second spring main body 254a on the second slide bush 252 side, and is hooked on the second detection rod 259 (more specifically, the second intermediate rod 255). For example, the second end 254 c is inserted into the second support hole 255 f of the second intermediate rod 255. The rotation of the second intermediate rod 255 is regulated by the second slide bush 252. Specifically, the second hooking pin 255h is press-fitted into the second fixing hole 255g of the second intermediate rod 255, and the tip of the second support hole 255f is inserted into the second slit 252c of the second slide bush 252 ing. Since the second slide bush 252 is tightly fitted in the second support hole 263b, when the second slide bush 252 axially moves or rotates with respect to the second pressure plate 49, the second slide bush 252 A relatively large sliding resistance occurs between 252 and the second pressure plate 49. Since the rotational force that the second adjustment spring 254 applies to the second adjustment bolt 253 is not large enough to rotate the second slide bush 252, the second slide bush 252 is the second intermediate rod 255 and the second for the second pressure plate 49. The rotation of the adjustment spring 254 can be restricted.

In the second intermediate rod 255, the second adjustment bolt 253 and the connecting rod 79 are arranged concentrically. Specifically, as shown in FIG. 7, the central axes of the second intermediate rod 255, the second slide bush 252, and the second adjustment bolt 253 are line B2.

The second intermediate rod 255 is axially engaged with the second intermediate rod main body 255 a axially abutting with the second slide bush 252, the second insertion portion 255 b inserted into the second slide bush 252, and the second washer 256. It has the 2nd support contact part 255c to contact, and the 2nd support projection part 255d. The second intermediate rod 255 is disposed inside the second adjustment bolt 253. The second insertion portion 255 b protrudes from the second intermediate rod main body 255 a toward the second disc portion 43. The outer dimensions of the second insertion portion 255b and the second support contact portion 255c are smaller than the outer dimensions of the second intermediate rod main body 255a. The second support contact portion 255 c protrudes from the second intermediate rod main body 255 a toward the second drive plate 74. The second support projection 255d radially supports the second washer 256, and has a large diameter portion 255e whose outer diameter is large. The large diameter portion 255 e prevents the second washer 256 from falling off.

The second washer 256 is a member that generates an elastic force so that the second detection rod 259 and the second drive plate 74 are separated. The second washer 256 is an annular plate made of a spring material and has a second opening 256e. The second support protrusion 255d of the second intermediate rod 255 is inserted into the second opening 256e. The second washer 256 is disposed inside the second adjustment bolt 253. The outer diameter of the second washer 256 is larger than the inner diameter of the second hole 74e of the second drive plate 74, and the outer peripheral portion of the second washer 256 is in contact with the outer peripheral portion of the second hole 74e.

The second washer 256 is sandwiched between the second intermediate rod 255 (more specifically, the second support abutment 255 c) and the second drive plate 74. As shown in FIG. 4, with the second adjustment bolt 253 in contact with the second drive plate 74, the second washer 256 has an axial gap between the second intermediate rod 255 and the second drive plate 74. At the time of engagement in a state where the second friction portion 67 is worn, the second detection rod 259 is pushed in, so that deflection occurs in the second washer 256, and the second washer 256 It will be in the state shown in 11.

As in the case of the first washer 156, as shown in FIG. 5B, the elastic force F2 of the second washer 256 is proportional to the amount of deflection. For example, in a state where the second adjustment bolt 253 is in contact with the second drive plate 74, the amount of deflection of the second washer 256 is D, and the elastic force F2 is an elastic force F20. Assuming that the reaction force F1 of the second strap plate 48 at the release position S22 when the second clutch disk assembly 6 is worn as shown in FIG. 5A is the reaction force F10, the wear of the second friction portion 67 As a result, deflection of the second washer 256 occurs, and F20 ≧ F10. As a result, the second adjustment bolt 253 is forcibly pulled away from the second drive plate 74 by the second washer 256 at the time of release. Since the rigidity of the second washer 256 is very high, the second adjustment bolt 253 can be forcibly pulled away from the second drive plate 74 even if the amount of wear of the second friction portion 67 is small.

<Basic Operation of Clutch Device 1>
The basic operation of the clutch device 1 will be described. The state shown in FIGS. 1 to 3 is a state in which no pressing force is applied to the first clutch C1 and the second clutch C2 by the drive mechanism 7, and power transmission is performed by the first clutch C1 and the second clutch C2. It is not in the state. In this state, the first pressure plate 39 is held at the axial position shown in FIGS. 1 to 3 by the first strap plate (not shown), and the second pressure plate 49 is the second strap plate (not shown). , And is held at the axial position shown in FIGS. When power is transmitted from the engine to the input rotary body 10, the input rotary body 10, the first pressure plate 39, the second pressure plate 49, and the drive mechanism 7 integrally rotate.

For example, when the vehicle starts at the first speed, the first input shaft 91 side of the transmission is switched to the first speed, and the first drive bearing 76 of the first drive mechanism 7A is the engine side by the first actuator (not shown). Is pushed by. As a result, the first diaphragm spring 71 is elastically deformed with the first protrusion 75 a as a fulcrum, and the first drive plate 73 is pushed toward the engine side. When the first drive plate 73 is pushed through the first diaphragm spring 71, the first pressure plate 39 moves to the engine side. As a result, the first friction portion 57 of the first clutch disc assembly 5 is sandwiched between the first pressure plate 39 and the first flywheel 3 (more specifically, the first disc portion 33). Power is transmitted to the first input shaft 91 via the clutch disc assembly 5. By these operations, the vehicle starts to start at the first speed.

At the time of shifting from the first speed to the second speed, the second input shaft 92 side of the transmission is switched to the second speed. With the transmission at the second speed, the second clutch C2 is switched to the connected state substantially simultaneously with the release of the first clutch C1.

Specifically, the pressing load applied to the first drive mechanism 7A is released, and the first drive bearing 76 returns to the transmission side. As a result, the state of the first diaphragm spring 71 returns to the state shown in FIGS. 1 to 3, and power transmission via the first clutch C1 is released.

On the other hand, the second drive bearing 77 of the second drive mechanism 7B is pushed toward the engine by the second actuator (not shown). As a result, the second diaphragm spring 72 is elastically deformed with the support projection 43a as a fulcrum, and the second drive plate 74 is pulled toward the transmission. When the second drive plate 74 is pushed by the second diaphragm spring 72, the connecting rod 79 and the second pressure plate 49 move to the transmission side. As a result, the second friction portion 67 of the second clutch disc assembly 6 is sandwiched between the second pressure plate 49 and the second flywheel 4 (more specifically, the second disc portion 43). Power is transmitted to the second input shaft 92 via the clutch disc assembly 6. By these operations, the shift speed is switched from the first speed to the second speed.

<Operation of First Wear Tracking Mechanism 100>
When the first pressure plate 39 is pushed to the engine side by the first drive mechanism 7A at the time of connection of the first clutch C1, as shown in FIG. 7, the first slide bush 152 faces the first facing of the first flywheel 3 Contact with part 31. When the first friction portion 57 wears, after the first slide bush 152 abuts on the first facing portion 31, the first pressure plate 39 is further pushed toward the engine by the first drive mechanism 7A. At this time, the sliding resistance generated between the first slide bush 152 and the first pressure plate 39 is significantly smaller than the pressing load applied from the first drive mechanism 7A to the first pressure plate 39, so the first slide The bush 152 slides on the first pressure plate 39, and as shown in FIG. 7, the first pressure plate 39 moves toward the engine with respect to the first slide bush 152. When the first friction portion 57 is completely sandwiched between the first pressure plate 39 and the first disc portion 33, the movement of the first pressure plate 39 is stopped. Thus, power transmission is performed via the first clutch disc assembly 5. In this state, a gap G1 corresponding to the wear amount G11 of the first friction portion 57 is generated between the first restricting portion 152b and the first contact portion 153b. At the same time, the first washer 156 generates a deflection load.

When the application of the pressing load by the first drive mechanism 7A is released to release the connection of the first clutch C1, as shown in FIG. 8, the first pressure plate 39 is released from the first by the elastic force of the first strap plate. Move to the transmission side with respect to the flywheel 3. As the first pressure plate 39 moves to the transmission side, the reaction force F1 applied to the first pressure plate 39 by the first strap plate 38 (see FIG. 4) gradually decreases (see FIG. 5A). When the reaction force F1 of the first strap plate 38 falls below the elastic force F20 of the first washer 156, the elastic force F2 of the first washer 156 overcomes the reaction force F1 of the first strap plate 38, and the release operation or release completion Sometimes, the first drive plate 73 is forcibly pulled away from the first adjustment bolt 153 by the first washer 156. When the first drive plate 73 is pulled away from the first adjustment bolt 153, the pressing load applied to the first adjustment bolt 153 is substantially zero. Since the rotational force of the first adjustment spring 154 always acts on the first adjustment bolt 153, as shown in FIG. 9, the first restricting portion 152 b of the first slide bush 152 and the first adjustment bolt 153 The first adjustment bolt 153 rotates until the gap G1 with the contact portion 153b disappears.

Here, the operation of the first adjustment bolt 153 will be described in detail. When the first adjustment bolt 153 rotates with respect to the first pressure plate 39 by the rotational force of the first adjustment spring 154, the first adjustment bolt 153 moves toward the first drive plate 73 with respect to the first pressure plate 39. . When the first adjustment bolt 153 moves relative to the first pressure plate 39, the first contact portion 153b of the first adjustment bolt 153 contacts the first restricting portion 152b. At this time, the axial slide generated between the first slide bush 152 and the first support hole 163 b of the first pressure plate 39 by the axial force of the first adjust bolt 153 generated by the rotational force of the first adjust spring 154. Dynamic resistance is much larger. Therefore, when the first contact portion 153b of the first adjustment bolt 153 contacts the first restricting portion 152b of the first slide bush 152, the first slide bush 152 does not move relative to the first pressure plate 39, and the first slide bush 152 does not move. Movement of the first adjustment bolt 153 in the axial direction is restricted by the slide bush 152, and the rotation of the first adjustment bolt 153 is stopped.

In addition, the sliding resistance in the rotational direction generated between the first slide bush 152 and the first support hole 163b of the first pressure plate 39 is also much larger than the rotational force of the first adjustment spring 154, so the first slide bush It does not happen that the rotation of the first adjustment spring 154 is loosened due to the unexpected rotation of the motor 152. Furthermore, even when the first diaphragm spring 71 is intermittently separated from the first drive plate 73 due to the axial vibration of the first pressure plate 39 which tends to occur when the clutch is released due to such an action, the first The adjustment bolt 153 does not rotate unexpectedly.

Thus, as shown in FIG. 9, the first slide bush 152 and the first adjustment bolt 153 move toward the transmission with respect to the first pressure plate 39 by an amount corresponding to the wear amount G11 of the first friction portion 57, Accordingly, the first drive plate 73 moves toward the transmission with respect to the first pressure plate 39. In other words, the first pressure plate 39 moves toward the engine relative to the first slide bush 152 and the first adjustment bolt 153 by an amount corresponding to the wear amount G11 in the first friction portion 57. If the first friction portion 57 wears, the above operation is repeated when the first clutch C1 is disengaged.

As described above, in the first wear following mechanism 100, even if the first friction portion 57 wears, the fulcrum position where the first diaphragm spring 71 and the first drive plate 73 are in contact is maintained substantially constant. . Once the adjustment is completed, since the feed screw mechanism is used, the pressing load of the first diaphragm spring 71 does not cause the first adjustment bolt 153 to reverse. Further, there is no possibility that the first adjustment bolt 153 turns excessively due to vibration or the like, and so-called over adjustment occurs. Therefore, the fluctuation of the performance of the clutch device 1 caused by the wear of the first friction portion 57 can be effectively suppressed.

Further, since the first slide bush 152 for detecting the amount of wear restricts the movement of the first adjustment bolt 153, the mechanism for adjusting the fulcrum position and the mechanism for detecting the amount of wear can be combined into one mechanism. . That is, in the clutch device 1, the first wear tracking mechanism 100 can be miniaturized, and furthermore, the assembling method can be simplified and the manufacturing cost can be reduced.

Furthermore, the first adjustment bolt 153 is disposed in the first screw hole 163 a, and the first adjustment spring 154 is disposed on the inner peripheral side of the first adjustment bolt 153. Therefore, a part of the first wear tracking mechanism 100 can be disposed inside the first pressure plate 39, and the installation space of the first wear tracking mechanism 100 can be reduced.

In addition, since the first drive plate 73 is forcibly pulled away from the first adjustment bolt 153 by the first washer 156 at the time of release, the release is performed without providing a stopper for restricting the axial movement of the first pressure plate 39. Sometimes, the first adjustment bolt 153 can rotate by the amount of wear. Therefore, by providing the first washer 156, a reliable wear-following operation can be realized with a simple structure.

<Operation of Second Wear Tracking Mechanism 200>
At the time of connection of the second clutch C2, when the second pressure plate 49 is pushed toward the transmission by the second drive mechanism 7B, the second slide bush 252 opposes the second facing of the second flywheel 4 as shown in FIG. Contact with the part 41. When the second friction portion 67 wears, the second slide bush 252 abuts on the second facing portion 41, and the second pressure plate 49 is further pushed toward the transmission by the second drive mechanism 7B. At this time, the sliding resistance generated between the second slide bush 252 and the second pressure plate 49 is significantly smaller than the pressing load applied from the second drive mechanism 7B to the second pressure plate 49, so the second slide The bush 252 slides on the second pressure plate 49, and as shown in FIG. 11, the second pressure plate 49 moves to the transmission side with respect to the second slide bush 252. When the second friction portion 67 is completely sandwiched between the second pressure plate 49 and the second disc portion 43, the movement of the second pressure plate 49 is stopped. Thus, power transmission via the second clutch disc assembly 6 is performed. In this state, a gap G2 corresponding to the wear amount G12 of the second friction portion 67 is generated between the second restricting portion 252b and the second contact portion 253b. At the same time, the second washer 256 generates a deflection load.

When the application of the pressing load by the second drive mechanism 7B is released to release the connection of the second clutch C2, as shown in FIG. 12, the second pressure plate 49 is moved to the second position by the elastic force of the second strap plate. Move to the transmission side with respect to the flywheel 4. As the second pressure plate 49 moves to the transmission side, the reaction force F1 applied to the second pressure plate 49 by the second strap plate 48 (see FIG. 4) gradually decreases (see FIG. 5A). When the reaction force F1 of the second strap plate 48 falls below the elastic force F20 of the second washer 256, the elastic force F2 of the second washer 256 overcomes the reaction force F1 of the second strap plate 48, and the release operation or release completion Sometimes, the second drive plate 74 is forcibly pulled away from the second adjustment bolt 253 by the second washer 256. When the second drive plate 74 is pulled away from the second adjustment bolt 253, the pressing load applied to the second adjustment bolt 253 becomes substantially zero. Since the rotational force of the second adjust spring 254 always acts on the second adjust bolt 253, as shown in FIG. 13, the second restricting portion 252b of the second slide bush 252 and the second adjust bolt 253 The second adjustment bolt 253 rotates until the gap G12 between the contact portion 253b and the contact portion 253b disappears.

Here, the operation of the second adjustment bolt 253 will be described in detail. When the second adjustment bolt 253 rotates relative to the second pressure plate 49 by the rotational force of the second adjustment spring 254, the second adjustment bolt 253 moves toward the second drive plate 74 relative to the second pressure plate 49. . When the second adjustment bolt 253 moves relative to the second pressure plate 49, the second contact portion 253b of the second adjustment bolt 253 contacts the second restricting portion 252b. At this time, the axial slide generated between the second slide bush 252 and the second support hole 263 b of the second pressure plate 49 by the axial force of the second adjust bolt 253 generated by the rotational force of the second adjust spring 254. Dynamic resistance is much larger. Therefore, when the second contact portion 253b of the second adjustment bolt 253 contacts the second restricting portion 252b of the second slide bush 252, the second slide bush 252 does not move relative to the second pressure plate 49, and The movement of the second adjustment bolt 253 in the axial direction is restricted by the second slide bush 252, and the rotation of the second adjustment bolt 253 is stopped.

In addition, the sliding resistance in the rotational direction between the second slide bush 252 and the second support hole 263b of the second pressure plate 49 is also much larger than the rotational force of the second adjust spring 254, so the second slide bush It does not happen that the rotation of the second adjustment spring 254 is relaxed due to the unexpected rotation of the 252. Furthermore, even if the second diaphragm spring 72 is intermittently separated from the second drive plate 74 due to the axial vibration of the second pressure plate 49 which tends to occur when the clutch is released due to such an action, the second The adjustment bolt 253 does not rotate unexpectedly.

Thus, as shown in FIG. 11, the connection rod 79, the second slide bush 252 and the second adjustment bolt 253 are on the transmission side with respect to the second pressure plate 49 by an amount corresponding to the wear amount G12 in the second friction portion 67. The second drive plate 74 moves toward the transmission with respect to the second pressure plate 49. In other words, the second pressure plate 49 moves toward the engine with respect to the second slide bush 252 and the second adjustment bolt 253 by an amount corresponding to the wear amount G12 in the second friction portion 67. If the second friction portion 67 is worn, the above operation is repeated when the second clutch C2 is disengaged.

Thus, in the case of the second wear following mechanism 200, even if the second friction portion 67 wears, the fulcrum position where the second diaphragm spring 72 and the second drive plate 74 are in contact is kept approximately constant. . Once the adjustment is completed, since the feed screw mechanism is used, the pressing load of the second diaphragm spring 72 does not cause the second adjustment bolt 253 to return. Further, there is no possibility that the second adjustment bolt 253 turns excessively due to vibration or the like, and so-called over adjustment occurs. Therefore, the fluctuation of the performance of the clutch device 1 caused by the wear of the second friction portion 67 can be effectively suppressed.

Further, since the second slide bush 252 for detecting the amount of wear regulates the movement of the second adjustment bolt 253, the mechanism for adjusting the fulcrum position and the mechanism for detecting the amount of wear can be combined into one mechanism. . That is, in the clutch device 1, the second wear tracking mechanism 200 can be miniaturized, and furthermore, the assembling method can be simplified and the manufacturing cost can be reduced.

Furthermore, the second adjustment bolt 253 is disposed in the second screw hole 263 a, and the second adjustment spring 254 is disposed on the inner peripheral side of the second adjustment bolt 253. Therefore, a part of the second wear follow-up mechanism 200 can be disposed inside the second pressure plate 49, and the installation space of the second wear follow-up mechanism 200 can be reduced.

In addition, since the second drive plate 74 and the second adjustment bolt 253 are forcibly pulled apart by the second washer 256 at the time of release, the stopper for limiting the axial movement of the second pressure plate 49 is not provided. At the time of release, the second adjustment bolt 253 can rotate by the amount of wear. Therefore, by providing the second washer 256, a reliable wear-following operation can be realized with a simple structure.

Other Embodiments
The present invention is not limited to the embodiments as described above, and various changes or modifications can be made without departing from the spirit of the present invention. In addition, about the structure which has a function substantially the same as the structure of the above-mentioned embodiment, the code | symbol same as the above-mentioned embodiment is attached | subjected, and the detailed description is abbreviate | omitted.

(1) Although the first wear tracking mechanism 100 and the second wear tracking mechanism 200 described above are mounted on the clutch device 1, a device on which such a wear tracking mechanism is mounted is the clutch device according to the above-described embodiment. It is not limited to one. The wear following mechanism is applicable to any other clutch device as long as it is a clutch device for transmitting power from the engine to the first input shaft and the second input shaft of the transmission.

For example, although the first pressure plate 39, the second pressure plate 49, the first clutch disc assembly 5 and the second clutch disc assembly 6 are disposed inside the input rotating body 10, the first friction portion 57 and the first The present invention is applicable even to a so-called center plate type clutch device in which a member against which the friction portion 67 is pressed is disposed between the first clutch disk assembly 5 and the second clutch disk assembly 6. .

Moreover, in the above-mentioned embodiment, although the damper mechanism 80 is arrange | positioned between an engine and the input rotary body 10, the damper mechanism is provided in the 1st clutch disc assembly 5 and the 2nd clutch disc assembly 6. May be

Furthermore, if at least one of the first wear tracking mechanism 100 and the second wear tracking mechanism 200 is provided in the clutch device, the same effect as described above can be obtained.

(2) In the above-mentioned embodiment, although the 1st slide bush 152 and the 1st adjustment spring 154 are arranged in the inner circumference side of the 1st adjustment bolt 153, arrangement of the 1st slide bush 152 and the 1st adjustment spring 154 Is not limited to the above arrangement. For example, the first slide bush 152 and the first adjustment spring 154 may be disposed outside the first adjustment bolt 153.

Moreover, in the above-mentioned embodiment, although the 2nd slide bush 252 and the 2nd adjustment spring 254 are arranged in the inner circumference side of the 2nd adjustment bolt 253, arrangement of the 2nd slide bush 252 and the 2nd adjustment spring 254 is It is not limited to the above arrangement. For example, the second slide bush 252 and the second adjustment spring 254 may be disposed outside the second adjustment bolt 253.

(3) In the above embodiment, the second end (e.g., the second end 154c of the first adjustment spring 154) of the first elastic member is hooked on the first auxiliary member (e.g., the first intermediate rod 155) However, for example, the second end 154 c of the first adjustment spring 154 may be hooked on the first slide bush 152 or another member fixed to the first slide bush 152. That is, the first detection member includes not only the first slide bush 152 but also a member fixed to the first slide bush 152. Furthermore, the first detection unit (for example, the first detection rod 159) is composed of a first detection member (for example, the first slide bush 152) and a first auxiliary member (for example, the first intermediate rod 155) The first detection unit may be composed of a single member, or may include other members in addition to the first detection member and the first auxiliary member.

In the above-described embodiment, the second end of the second elastic member (for example, the second end 254c of the second adjustment spring 254) is hooked on the second detection member (for example, the second slide bush 252). However, for example, the second end 254 c of the second adjustment spring 254 may be hooked to a member fixed to the second slide bush 252. That is, the second detection member includes not only the second slide bush 252 but also a member fixed to the second slide bush 252. Furthermore, the second detection unit (for example, the second detection rod 259) is composed of the second detection member (for example, the second slide bush 252) and the second auxiliary member (for example, the second intermediate rod 255) The second detection unit may be composed of a single member, or may include other members in addition to the second detection member and the second auxiliary member.

(4) The first wear follow-up mechanism 100 may be provided with a first dust boot 158 for preventing the entry of foreign matter. Specifically, as shown in FIG. 14, the first dust boot 158 is, for example, a metal bellows, and is sandwiched between the first pressure plate 39 and the first drive plate 73. The first dust boot 158 is fixed to the first pressure plate 39 and the first drive plate 73, for example, by adhesion. The first dust boot 158 is disposed on the outer peripheral side of the first adjustment bolt 153. As a result, foreign matter is less likely to be mixed in the first wear tracking mechanism 100, and the operation of the first wear tracking mechanism 100 becomes smoother.

Similarly, the second wear follow-up mechanism 200 may be provided with a second dust boot 258 for preventing contamination. Specifically, as shown in FIG. 15, the second dust boot 258 is, for example, a metal bellows, and is sandwiched between the second pressure plate 49 and the second drive plate 74. The second dust boot 258 is fixed to the second pressure plate 49 and the second drive plate 74, for example, by adhesion. The second dust boot 258 is disposed on the outer peripheral side of the second adjustment bolt 253. As a result, foreign matter is less likely to be mixed in the second wear follow-up mechanism 200, and the operation of the second wear follow-up mechanism 200 becomes smoother.

(5) In the above embodiment, the inner peripheral portion of the output plate 87 is fixed to the first flywheel 3 of the input rotary body 10 by the rivet 87c, but as shown in FIG. 16 and FIG. It may be a bolt 187a. In the above-described embodiment, the first input plate 84 and the second input plate 86 are fixed by the plurality of rivets 84a, but as shown in FIG. 17, the rivets 84a may be bolts 184a.

(6) In the above embodiment, the first input plate 84 is arranged in line with the flexible plate 93 in the axial direction, but as shown in FIG. You may enter into the formed opening 93a. In this case, the axial dimension of the damper mechanism 80 can be shortened, which is advantageous for downsizing of the clutch device 1.

(7) As shown in FIG. 17, the first wear following mechanism 100 may have an annular first spring cap 199. The first spring cap 199 is fitted to the end of the first adjustment bolt 153. The first spring cap 199 is in contact with the end of the first drive plate 73. By providing the first spring cap 199, even when the width of the end of the first drive plate 73 is small, the contact area between the first wear following mechanism 100 and the first drive plate 73 can be widely secured.

Similarly, the second wear tracking mechanism 200 may have an annular second spring cap 299. The second spring cap 299 is fitted to the end of the second adjustment bolt 253. The second spring cap 299 is in contact with the end of the connecting rod 379 connected to the second drive plate 74. By providing the second spring cap 299, even when the width of the end of the connection rod 379 is small, a wide contact area between the second wear following mechanism 200 and the connection rod 379 can be secured.

With the clutch device described above, fluctuation of performance due to wear can be suppressed.
Therefore, the technology disclosed herein is useful in the field of clutch devices.

DESCRIPTION OF SYMBOLS 1 clutch apparatus 3 1st flywheel 4 2nd flywheel 5 1st clutch disc assembly 6 2nd clutch disc assembly 7 drive mechanism 7A 1st drive mechanism (an example of a 1st drive mechanism or a 2nd drive mechanism)
7B Second Drive Mechanism (One Example of First Drive Mechanism or Second Drive Mechanism)
DESCRIPTION OF SYMBOLS 10 input rotation body 11 rotation support mechanism 39 1st pressure plate 49 2nd pressure plate 71 1st diaphragm spring 72 2nd diaphragm spring 73 1st drive plate 74 2nd drive plate 100 1st wear following mechanism 151 1st stopper (1st stopper 1 Example of stopper or second stopper)
152 First slide bush (example of first detection member or second detection member)
153 1st adjustment bolt (an example of 1st adjustment member or 2nd adjustment member)
154 first adjustment spring (an example of the first elastic member or the second elastic member)
155 First Intermediate Rod (Example of First Auxiliary Member or Second Auxiliary Member)
156 First washer (an example of the first separating member or the second separating member)
158 first dust boot 159 first detection rod (example of first detection unit or second detection unit)
200 Second Wear Follower Mechanism 251 Second Stopper (Example of First Stopper or Second Stopper)
252 Second slide bush (example of first detection member or second detection member)
253 Second adjustment bolt (an example of a first adjustment member or a second adjustment member)
254 Second adjustment spring (an example of the first elastic member or the second elastic member)
255 Second Intermediate Rod (Example of First Auxiliary Member or Second Auxiliary Member)
256 Second washer (an example of the first separating member or the second separating member)
258 Second dust boot 259 Second detection rod (example of first detection unit or second detection unit)
C1 first clutch C2 second clutch

Claims

A clutch device for transmitting power from an engine to first and second input shafts of a transmission, comprising:
An input rotating body to which power is transmitted from the engine;
A first pressure plate provided integrally rotatably with the input rotating body and axially movable;
A second pressure plate provided integrally rotatably with the input rotating body and axially movable;
A first clutch disc assembly disposed between the input rotating body and the first pressure plate and provided connectably to the first input shaft;
A second clutch disk assembly disposed between the input rotating body and the second pressure plate and provided to be connectable to the second input shaft;
A first drive mechanism provided to be able to press the first pressure plate in the axial direction;
A second drive mechanism provided so as to be able to press the second pressure plate in the axial direction;
A first adjustment member arranged to transmit the pressing force of the first drive mechanism to the first pressure plate, and moving in the axial direction with respect to the first pressure plate when rotated with respect to the first pressure plate;
A first elastic member that applies a rotational force to the first adjustment member;
It is supported by the first pressure plate so as to be movable in the axial direction with respect to the first pressure plate according to the wear of the first clutch disc assembly, and restricts the movement of the first adjusting member with respect to the first pressure plate. A first detection unit arranged to be capable of
A first separating member sandwiched between the first detection unit and the first drive mechanism;
Clutch device equipped with
The first detection unit includes a first detection member, and a first auxiliary member sandwiched between the first separating member and the first detection member.
The clutch device according to claim 1.
The first separating member is sandwiched between the first auxiliary member and the first drive mechanism.
The clutch device according to claim 2.
The first auxiliary member is inserted inside the first elastic member.
The clutch device according to any one of claims 1 to 3.
The first auxiliary member is disposed inside the first adjustment member,
The first separating member is disposed inside the first adjusting member,
The clutch device according to any one of claims 1 to 4.
The first separating member is an annular plate,
The clutch apparatus in any one of Claims 1-5.
The first auxiliary member has a first support protrusion inserted into the first separating member.
The clutch apparatus of Claim 6.
The first drive mechanism has a first hole into which the first support protrusion is inserted,
The outer diameter of the first separating member is larger than the inner diameter of the first hole,
The clutch device according to claim 7.
The first auxiliary member has a first auxiliary member main body axially contacting the first detection member, and a first support portion projecting from the first auxiliary member main body axially contacting the first separating member. And have
The first separating member is sandwiched between the first support portion and the first drive mechanism.
The clutch device according to claim 8.
The first auxiliary member has a first insertion portion inserted into the first detection member, which has a smaller outside dimension than the first auxiliary member main body.
The clutch device according to claim 9.
The first elastic member has a first main body portion that generates a rotational force, a first end, and a second end,
The first end of the first elastic member is hooked on the first adjustment member,
The second end of the first elastic member is hooked on the first auxiliary member,
The clutch device according to any one of claims 1 to 10.
A second adjustment member arranged to transmit the pressing force of the second drive mechanism to the second pressure plate, and moving in the axial direction with respect to the second pressure plate when rotated with respect to the second pressure plate;
A second elastic member that applies a rotational force to the second adjustment member;
It is supported by the second pressure plate so as to be axially movable with respect to the second pressure plate according to the wear of the second clutch disc assembly, and restricts the movement of the second adjusting member with respect to the second pressure plate. A second detection unit, which is arranged as
A second separating member sandwiched between the second detection unit and the second drive mechanism;
The clutch device according to any one of claims 1 to 11, further comprising:
The second detection unit includes a second detection member, and a second auxiliary member sandwiched between the second separating member and the second detection member.
The clutch device according to claim 12.
The second separating member is sandwiched between the second auxiliary member and the second drive mechanism.
The clutch device according to claim 13.
The second auxiliary member is inserted inside the second elastic member.
The clutch device according to any one of claims 11 to 14.
The second auxiliary member is disposed inside the second adjustment member,
The second separating member is disposed inside the second adjusting member.
The clutch device according to any one of claims 11 to 15.
The second separating member is an annular plate,
The clutch device according to any one of claims 11 to 16.
The second auxiliary member has a second support protrusion inserted into the second separating member.
The clutch device according to claim 17.
The second drive mechanism has a second hole into which the second support protrusion is inserted,
The outer diameter of the second separating member is larger than the inner diameter of the second hole,
The clutch device according to claim 18.
The second auxiliary member has a second auxiliary member main body axially contacting the second detection member, and a second support portion protruding from the second auxiliary member main body axially contacting the second separating member. And have
The second separating member is sandwiched between the second support portion and the second drive mechanism.
The clutch device according to claim 19.
The second auxiliary member has a second insertion portion inserted into the second detection member, which has a smaller outside dimension than the second auxiliary member main body.
The clutch device according to claim 19.
The second elastic member has a second main body portion generating a rotational force, a first end, and a second end,
The first end of the second elastic member is hooked to the second adjustment member,
The second end of the second elastic member is hooked on the second auxiliary member,
A clutch device according to any of claims 11 to 21.