WO2018061627A1 - Clutch device - Google Patents

Clutch device Download PDF

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Publication number
WO2018061627A1
WO2018061627A1 PCT/JP2017/031714 JP2017031714W WO2018061627A1 WO 2018061627 A1 WO2018061627 A1 WO 2018061627A1 JP 2017031714 W JP2017031714 W JP 2017031714W WO 2018061627 A1 WO2018061627 A1 WO 2018061627A1
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WO
WIPO (PCT)
Prior art keywords
clutch
pressure receiving
friction
axial direction
receiving surface
Prior art date
Application number
PCT/JP2017/031714
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French (fr)
Japanese (ja)
Inventor
未紗樹 美濃羽
亮一 今井
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株式会社エクセディ
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Application filed by 株式会社エクセディ filed Critical 株式会社エクセディ
Publication of WO2018061627A1 publication Critical patent/WO2018061627A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/24—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches
    • F16D13/32—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches in which two or more axially-movable members are pressed from one side towards an axially-located member

Definitions

  • the present invention relates to a clutch device, and more particularly, to a clutch device disposed between an input side member to which power is input and an output side member from which power is output.
  • a clutch device is a motorcycle clutch device.
  • a motorcycle clutch device generally includes a clutch housing, a rotating body, and a clutch portion.
  • the clutch housing is connected to the crankshaft side of the engine, and the rotating body is connected to the transmission side.
  • a clutch part transmits or interrupts
  • the clutch portion has a plurality of drive plates and a plurality of driven plates in order to improve the frictional force.
  • the conventional motorcycle clutch device improves the frictional force by increasing the drive plate and the driven plate.
  • increasing the drive plate and the driven plate causes an increase in cost.
  • An object of the present invention is to reduce the cost of the clutch device.
  • the clutch device is disposed between an input-side member to which power is input and an output-side member from which power is output.
  • the clutch device includes a first cone clutch and a second cone clutch.
  • the first cone clutch includes a first pressure receiving portion having a tapered first pressure receiving surface, and a first friction portion having a first friction surface pressed against the first pressure receiving surface, and an input side member; Power is transmitted to and shut off from the output side member.
  • the second cone clutch has a tapered second pressure receiving surface, a second pressure receiving portion that can move relative to the first pressure receiving portion in the radial direction, and a second friction surface that is pressed against the second pressure receiving surface. And a friction portion, and is arranged side by side with the first cone clutch in the axial direction, and transmits and blocks power between the input side member and the output side member together with the first cone clutch.
  • the pressure receiving surfaces and friction surfaces of the first and second cone clutches are pressed, and power is transmitted from the input side member to the output side member.
  • the cone clutch in order to secure a sufficient torque capacity with one friction surface, it is necessary to reduce the taper angles of the pressure receiving surface and the friction surface. However, if the taper angle is too small, the wedge force becomes excessive, the friction surface sticks to the pressure receiving surface, and the clutch is difficult to disconnect.
  • two friction surfaces are provided by two cone clutches. For this reason, in the apparatus of the present invention, a necessary torque capacity can be ensured without increasing the pressing load.
  • the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction.
  • the pressure receiving portion is appropriately displaced in the radial direction when the friction surface is pressed against the pressure receiving surface. That is, when the pressure receiving portion moves in the radial direction, a shift during processing can be absorbed, and the contact between the two pressure receiving surfaces and the friction surface is stabilized. Therefore, vibration caused by processing accuracy and abnormal wear of the friction material can be suppressed.
  • the clutch device further includes a clutch housing connectable to an input side member and an output member connectable to an output side member.
  • the output member and the first and second cone clutches are accommodated in the inner peripheral portion of the clutch housing.
  • the first and second pressure receiving portions are provided on the inner peripheral portion of the clutch housing, and the first and second friction portions are provided on the outer peripheral portion of the output member.
  • the entire apparatus can be made compact.
  • the first pressure receiving portion has a first clutch shoe that rotates together with the clutch housing and has a first pressure receiving surface on the inner peripheral surface.
  • the second pressure receiving portion has a second clutch shoe that rotates together with the clutch housing and has a second pressure receiving surface on the inner peripheral surface.
  • first and second clutch shoes are provided separately from the clutch housing, a wide range of specifications can be handled by changing the specifications of the pressure receiving surfaces of the clutch shoes.
  • the clutch housing has a disk part and a cylindrical part formed extending in the axial direction from the outer peripheral part of the disk part and having a housing side engaging part.
  • the 1st and 2nd clutch shoes have the shoe side engaging part engaged with a housing side engaging part in an outer peripheral part.
  • the output member has a first output member and a second output member.
  • the first output member has a first friction portion on the outer peripheral portion.
  • the second output member has a second friction surface on the outer peripheral portion, is movable in the axial direction, and is rotatable in synchronization with the first output member.
  • friction portions constituting two cone clutches are formed on the outer peripheral portions of the first and second output members. This simplifies the configuration.
  • a clutch control unit for controlling on / off of the first and second cone clutches is further provided.
  • the clutch control unit includes an urging member and a release member.
  • the biasing member biases the first output member toward the first side in the axial direction and presses the first friction surface against the first pressure receiving surface.
  • the release member supports the urging member and urges the second output member toward the second side in the axial direction by the urging force of the urging member to press the second friction surface against the second pressure receiving surface.
  • the first output member and the second output member are biased by the biasing member so as to be attracted to each other. For this reason, the urging force does not act on other members, and a special member for receiving the urging force becomes unnecessary.
  • the release member is movable in the axial direction by a release mechanism.
  • the first and second cone clutches are clutched off.
  • the first output member and the second output member are arranged to face each other in the axial direction.
  • the first pressure receiving surface and the first friction surface are tapered so that the diameter decreases toward the first side in the axial direction.
  • the second pressure receiving surface and the second friction surface are tapered so that the diameter decreases toward the second side in the axial direction.
  • the space occupied by the first and second cone clutches in the axial direction can be made compact.
  • the cost of the clutch device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.
  • the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction. For this reason, the shift
  • FIG. 1 is a cross-sectional view of a motorcycle clutch device according to an embodiment of the present invention.
  • FIG. 2 is a partial front view of the apparatus of FIG. 1.
  • FIG. 2 is a partial cross-sectional view of the apparatus of FIG.
  • FIG. 2 is a partial cross-sectional view of the apparatus of FIG.
  • FIG. 1 is a cross-sectional view of a motorcycle clutch device as an example of a clutch device
  • FIG. 2 is a front partial view of the motorcycle clutch device.
  • axial direction indicates the left-right direction in FIG. 1
  • axially inner first side
  • second side indicates the left side of FIG. 1
  • axially outer second side
  • the motorcycle clutch device transmits power from the crankshaft of the engine to a transmission and interrupts power transmission by operating a release mechanism.
  • the clutch device includes a clutch housing 1, a clutch shoe 2, an output member 3, and a clutch control unit 4.
  • the clutch housing 1 has a disc portion 6 and a cylindrical portion 7 and is connected to an input gear 8.
  • the input gear 8 meshes with a drive gear (not shown) fixed to the crankshaft on the engine side, and power is input from the engine.
  • a hole 6a into which a transmission shaft is inserted is formed in the center portion. Further, a plurality of protrusions 6b protruding inward in the axial direction are formed at a predetermined interval in the circumferential direction at the radial intermediate portion of the disk portion 6. An elastic member 10 is mounted around the protrusion 6 b, and the protrusion 6 b and the elastic member 10 are inserted into a hole 8 a formed in the input gear 8.
  • a spring support portion 6 c is formed at the radial intermediate portion of the disc portion 6.
  • the spring 12 is supported by the spring support portion 6 c and the support plate 11 fixed to the side surface of the input gear 8.
  • the spring 12 elastically connects the clutch housing 1 and the input gear 8 in the rotational direction.
  • the support plate 11 is fixed to the tip of the protrusion 6b of the clutch housing 1 by a bolt 13 and a nut 14.
  • a disc spring 15 is disposed on the inner peripheral portion of the support plate 11 between the side surface of the input gear 8.
  • the cylindrical portion 7 is formed so as to extend outward from the outer peripheral edge of the disc portion 6 in the axial direction.
  • a plurality of notches 7a (housing side engaging portions) extending in the axial direction and opening outward in the axial direction are formed in the cylindrical portion 7 at predetermined intervals in the circumferential direction.
  • the clutch shoe 2 has a first clutch shoe 201 (first pressure receiving portion) and a second clutch shoe 202 (second pressure receiving portion) divided into two.
  • the first clutch shoe 201 and the second clutch shoe 202 are annular members, respectively, and are arranged along the inner peripheral surface of the cylindrical portion 7 of the clutch housing 1. Further, the first clutch shoe 201 is disposed on the outer side in the axial direction, and the second clutch shoe 202 is disposed on the inner side in the axial direction.
  • the first clutch shoe 201 and the second clutch shoe 202 are relatively movable in the radial direction.
  • the first clutch shoe 201 has a plurality of claws 201a (shoe side engaging portions) and a first pressure receiving surface 201b.
  • the plurality of claws 201a are formed on the outer peripheral surface of the first clutch shoe 201 so as to protrude further to the outer peripheral side.
  • the plurality of claws 201 a are arranged at predetermined intervals in the circumferential direction, and each claw 201 a is engaged with a notch 7 a formed in the cylindrical portion 7 of the clutch housing 1.
  • the first clutch shoe 201 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
  • the first pressure receiving surface 201b is formed on the inner peripheral surface of the first clutch shoe 201 in a tapered shape whose diameter decreases from the end surface on the outer side in the axial direction toward the inner side in the axial direction.
  • the second clutch shoe 202 has a plurality of claws 202a (shoe side engaging portions) and a second pressure receiving surface 202b.
  • the plurality of claws 202a are formed on the outer peripheral surface of the second clutch shoe 202 so as to protrude further to the outer peripheral side.
  • the plurality of claws 202 a are arranged at predetermined intervals in the circumferential direction, and each claw 202 a is engaged with a notch 7 a formed in the tubular portion 7 of the clutch housing 1.
  • the second clutch shoe 202 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
  • the second pressure receiving surface 202b is formed on the inner peripheral surface of the second clutch shoe 202 in a tapered shape whose diameter decreases from the axially inner end surface toward the axially outer side.
  • the output member 3 is housed in the inner peripheral portion of the clutch housing 1, and includes a clutch center 21 (first output member), a pressure plate 22 (second output member), and a hub 23.
  • the clutch center 21 and the pressure plate 22 are both formed by sheet metal processing of an iron plate material.
  • the clutch center 21 has a disc part 21 a and a friction part 21 b (first friction part).
  • a spline hole 21c is formed in the central portion of the disc portion 21a, and the spline engagement is possible with the transmission shaft.
  • four through holes 21d are formed at predetermined intervals in the circumferential direction in the radial direction intermediate portion of the disc portion 21a.
  • the friction part 21b is formed by bending the outer peripheral part of the disk part 21a outward in the axial direction.
  • the friction part 21b faces the first pressure receiving surface 201b of the first clutch shoe 201 and is formed in a tapered shape having the same inclination as the first pressure receiving surface 201b.
  • An annular first friction material 25 is fixed to the outer peripheral surface of the friction portion 21b, and the surface of the first friction material 25 is a first friction surface 25a.
  • the pressure plate 22 is disposed on the inner side in the axial direction of the clutch center 21 so as to be opposed to the clutch center 21 and movable in the axial direction.
  • the pressure plate 22 has a disc part 22a and a friction part 22b (second friction part).
  • a spline hole 22c is formed at the center of the disc portion 22a.
  • four through holes 22d are formed at predetermined intervals in the circumferential direction in the inner peripheral portion of the disc portion 22a.
  • the friction portion 22b is formed by bending the outer peripheral portion of the disc portion 22a inward in the axial direction.
  • the friction portion 22b is opposed to the second pressure receiving surface 202b of the second clutch shoe 202, and is formed in a tapered shape having the same inclination as the second pressure receiving surface 202b.
  • An annular second friction material 26 is fixed to the outer peripheral surface of the friction portion 22b, and the surface of the second friction material 26 is a second friction surface 26a.
  • the first and second friction materials 25 and 26 are made of the same material, and here, a friction material for a four-wheeled vehicle used for a passenger car or the like is used.
  • the hub 23 is an annular member, and is disposed on the inner peripheral portion of the pressure plate 22 so as to abut on the side surface on the inner side in the axial direction of the inner peripheral portion of the clutch center 21.
  • the spline hole 23a is formed in the inner peripheral part of the hub 23, and the spline shaft 23b is formed in the outer peripheral surface.
  • the spline hole 23a can be engaged with a transmission shaft.
  • the spline shaft 23 b is engaged with the spline hole 22 c of the pressure plate 22.
  • the spline hole 22c of the pressure plate 22 and the spline shaft 23b of the hub 23 mesh with each other so as to be slidable in the axial direction.
  • the clutch center 21 can be connected to the transmission shaft through the spline hole 21c, and the pressure plate 22 can be connected to the transmission shaft through the spline engagement with the hub 23. Therefore, the clutch center 21 and the pressure plate 22 rotate in synchronization.
  • a thrust plate 27 is disposed between the side surface of the hub 23 and the side surface of the inner peripheral portion of the clutch housing 1 as shown in FIG.
  • first and second cone clutches C1, C2 In the configuration as described above, the first pressure receiving surface 201b of the first clutch shoe 201 and the first friction material 25 having the friction portion 21b and the first friction surface 25a formed on the outer peripheral portion of the clutch center 21 A one-corn clutch C1 is configured. Further, the second cone clutch C2 is constituted by the second pressure receiving surface 202b of the second clutch shoe 202 and the second friction material 26 having the friction portion 22b and the second friction surface 26a formed on the outer peripheral portion of the pressure plate 22. It is configured.
  • the clutch control unit 4 is disposed outside the clutch center 21 in the axial direction, and includes a release member 30 and four coil springs 40 (biasing members).
  • the release member 30 is moved in the axial direction by a release mechanism (not shown).
  • the release member 30 has an annular main body 31 and four protrusions 32.
  • the annular main body 31 can be penetrated by a rod of a release mechanism or the like through an inner peripheral portion.
  • the protrusion 32 is formed integrally with the main body 31 and protrudes inward in the axial direction from the main body 31.
  • the protrusion 32 penetrates the through hole 21d of the clutch center 21 toward the pressure plate 22 side.
  • the protrusion 32 has a screw hole 32a having a predetermined depth at the tip end on the inner side in the axial direction.
  • the tip end surface of the protrusion 32 is in contact with the axially outer side surface of the pressure plate 22.
  • a bolt 34 extending outward in the axial direction from the side surface on the inner side in the axial direction of the pressure plate 22 through the through hole 22 d is screwed into the screw hole 32 a of the protrusion 32. Thereby, the release member 30 is fixed to the pressure plate 22.
  • the coil spring 40 is disposed so as to surround the outer periphery of the protrusion 32 of the release member 30 as shown in FIGS. That is, the protrusion 32 passes through the inner peripheral portion of the coil spring 40.
  • One end of the coil spring 40 is in contact with the main body 31 of the release member 30, and the other end is in contact with the clutch center 21.
  • the coil spring 40 is mounted between the release member 30 and the clutch center 21 in a compressed state in a neutral state where no release operation is performed. For this reason, the coil spring 40 urges the clutch center 21 in the axial direction and urges the pressure plate 22 in the axial direction.
  • the torque transmitted to the clutch center 21 as described above is transmitted to the transmission shaft through the spline hole 21c of the clutch center 21.
  • the torque transmitted to the pressure plate 22 is transmitted from the pressure plate 22 to the transmission shaft via the hub 23.
  • the concentricity of the first pressure receiving surface 201b and the second pressure receiving surface 202b may be shifted due to a processing error. If two pressure receiving surfaces are formed on one member and the two concentricities deviate from each other, even if the friction surface uniformly contacts one pressure receiving surface, the friction surface against the other pressure receiving surface Will not contact evenly. In such a case, vibration is generated in the vehicle or the friction material is worn out.
  • the first pressure receiving surface 201b and the second pressure receiving surface 202b are relatively movable in the radial direction. For this reason, even if there is a machining error when tapering each pressure-receiving surface, the pressure-receiving surface moves in the radial direction by pressing the friction surface, the processing error is absorbed, and the friction surface is made uniform on any pressure-receiving surface It can be pressed against each other.
  • the release member 30 is moved inward in the axial direction against the urging force of the coil spring 40.
  • the pressure plate 22 fixed to the release member 30 also moves inward in the axial direction.
  • the pressing force of the pressure plate 22 on the second clutch shoe 202 (second pressure receiving surface 202b) is released.
  • the clutch center 21 is restricted from moving inward in the axial direction by the hub 23, the first pressure receiving force of the first clutch shoe 201 is released when the pressing force of the pressure plate 22 to the second clutch shoe 202 is released.
  • the pressing force between the surface 201b and the first friction surface 25a is also released.
  • the first cone clutch C1 and the second cone clutch C2 are clutch-off (release of power transmission: cutoff). In this clutch-off state, rotation from the clutch housing 1 is not transmitted to the clutch center 21 and the pressure plate 22.
  • the first cone clutch C1 is configured using a part of the clutch center 21 and the second cone clutch C2 is configured using a part of the pressure plate 22.
  • the pressure plate and the cone clutch may be configured separately.
  • the cost of the device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.

Abstract

The present invention reduces the cost of clutch devices. This clutch device is equipped with a first cone clutch (C1), a second cone clutch (C2), and a clutch control part (4). The first cone clutch (C1) is provided with a first clutch shoe (201) having a tapered first pressure-receiving surface (201b), and a first friction portion (21b) having a first friction surface (25a) that is pressed against the first pressure-receiving surface (201b), and transmits power between an input-side member and an output-side member. The second cone clutch (C2) is provided with a second clutch shoe (202) having a tapered second pressure-receiving surface (202b) and capable of moving relative to the first clutch shoe (201) in the radial direction, and a second friction part (22b) having a second friction surface (26a) that is pressed against the second pressure-receiving surface (202b). The second cone clutch (C2) is disposed in line with the first cone clutch (C1) in the axial direction and, together with the first cone clutch (C1), transmits power between the input-side member and the output-side member.

Description

クラッチ装置Clutch device
　本発明は、クラッチ装置、特に、動力が入力される入力側の部材と動力が出力される出力側の部材との間に配置されるクラッチ装置に関する。 The present invention relates to a clutch device, and more particularly, to a clutch device disposed between an input side member to which power is input and an output side member from which power is output.
　クラッチ装置の一例として、モータサイクル用クラッチ装置がある。モータサイクル用クラッチ装置は、一般的に、クラッチハウジングと、回転体と、クラッチ部とを有している。クラッチハウジングはエンジンのクランク軸側に連結され、回転体はトランスミッション側に連結される。クラッチ部は、クラッチハウジングと回転体との間で、摩擦係合したり摩擦係合を解除したりすることによって、トルクを伝達又は遮断する。このクラッチ部は、摩擦力を向上させるために、複数枚のドライブプレートと複数のドリブンプレートとを有している。 An example of a clutch device is a motorcycle clutch device. A motorcycle clutch device generally includes a clutch housing, a rotating body, and a clutch portion. The clutch housing is connected to the crankshaft side of the engine, and the rotating body is connected to the transmission side. A clutch part transmits or interrupts | blocks a torque by carrying out friction engagement between a clutch housing and a rotary body, or canceling | releases friction engagement. The clutch portion has a plurality of drive plates and a plurality of driven plates in order to improve the frictional force.
特開２０１３－１８５６７５号公報JP 2013-185675 A
　特許文献１に示されるように、従来のモータサイクル用クラッチ装置は、ドライブプレート及びドリブンプレートを増やすことによって摩擦力を向上させている。しかし、ドライブプレート及びドリブンプレートを増やすことは、コストの増加を招く。 As shown in Patent Document 1, the conventional motorcycle clutch device improves the frictional force by increasing the drive plate and the driven plate. However, increasing the drive plate and the driven plate causes an increase in cost.
　本発明の課題は、クラッチ装置のコストを低減することにある。 An object of the present invention is to reduce the cost of the clutch device.
　（１）本発明に係るクラッチ装置は、動力が入力される入力側の部材と動力が出力される出力側の部材との間に配置される。このクラッチ装置は、第１コーンクラッチと、第２コーンクラッチと、を備えている。第１コーンクラッチは、テーパ状の第１受圧面を有する第１受圧部と、第１受圧面に押圧される第１摩擦面を有する第１摩擦部と、を有し、入力側の部材と出力側の部材との間で動力の伝達及び遮断を行う。第２コーンクラッチは、テーパ状の第２受圧面を有し第１受圧部と径方向に相対移動可能な第２受圧部と、第２受圧面に押圧される第２摩擦面を有する第２摩擦部と、を有し、第１コーンクラッチと軸方向に並べて配置され、第１コーンクラッチとともに入力側の部材と出力側の部材との間で動力の伝達及び遮断を行う。 (1) The clutch device according to the present invention is disposed between an input-side member to which power is input and an output-side member from which power is output. The clutch device includes a first cone clutch and a second cone clutch. The first cone clutch includes a first pressure receiving portion having a tapered first pressure receiving surface, and a first friction portion having a first friction surface pressed against the first pressure receiving surface, and an input side member; Power is transmitted to and shut off from the output side member. The second cone clutch has a tapered second pressure receiving surface, a second pressure receiving portion that can move relative to the first pressure receiving portion in the radial direction, and a second friction surface that is pressed against the second pressure receiving surface. And a friction portion, and is arranged side by side with the first cone clutch in the axial direction, and transmits and blocks power between the input side member and the output side member together with the first cone clutch.
　この装置では、第１及び第２コーンクラッチの受圧面と摩擦面とが押圧され、入力側の部材から出力側の部材に動力が伝達される。 In this device, the pressure receiving surfaces and friction surfaces of the first and second cone clutches are pressed, and power is transmitted from the input side member to the output side member.
　ここでは、コーンクラッチを用いているので、くさび力によって十分な摩擦力、すなわちクラッチトルク伝達容量を確保できる。また、従来の多板型のクラッチに比較してコストを抑えることができる。 Here, since a cone clutch is used, a sufficient frictional force, that is, a clutch torque transmission capacity can be secured by the wedge force. Further, the cost can be reduced as compared with the conventional multi-plate clutch.
　ここで、コーンクラッチにおいて、１つの摩擦面で十分なトルク容量を確保するためには、受圧面及び摩擦面のテーパ角度を小さくする必要がある。しかし、テーパ角度を小さくし過ぎると、くさび力が過大になり、摩擦面が受圧面に貼り付いてクラッチが切れにくくなる。 Here, in the cone clutch, in order to secure a sufficient torque capacity with one friction surface, it is necessary to reduce the taper angles of the pressure receiving surface and the friction surface. However, if the taper angle is too small, the wedge force becomes excessive, the friction surface sticks to the pressure receiving surface, and the clutch is difficult to disconnect.
　一方、クラッチの切れを良くするためには、テーパ角度を大きくする必要がある。しかし、テーパ角度を大きくすると、必要なトルク容量を確保できなくなるために、受圧面に対する摩擦面の押し付け荷重を大きくする必要がある。このように押し付け荷重を大きくすると、クラッチを切るために必要な操作力、すなわち、クラッチレバーの操作荷重が大きくなって操作が困難になる。 On the other hand, in order to improve the clutch disengagement, it is necessary to increase the taper angle. However, if the taper angle is increased, the required torque capacity cannot be ensured, so that it is necessary to increase the pressing load of the friction surface against the pressure receiving surface. When the pressing load is increased in this way, the operation force necessary for disengaging the clutch, that is, the operation load of the clutch lever is increased and the operation becomes difficult.
　そこで、まず本発明では、２つのコーンクラッチによって２面の摩擦面を設けている。このため、本発明の装置では、押し付け荷重を大きくすることなく、必要なトルク容量を確保することができる。 Therefore, first, in the present invention, two friction surfaces are provided by two cone clutches. For this reason, in the apparatus of the present invention, a necessary torque capacity can be ensured without increasing the pressing load.
　また、２つのコーンクラッチを設けた場合、１つの部材に第１及び第２受圧面を形成すると、各受圧面のテーパを精度よく形成する必要がある。加工誤差によって２つの受圧面の同心度にずれがあると、片当たり（一方の受圧面には摩擦面が確実にかつ均一に押圧されるが、他方の受圧面には摩擦面が均一に押圧されない現象）が発生する。このような片当たりが発生すると、車両の振動や、摩擦面を構成する摩擦材の異常摩耗の原因となる。 Further, when two cone clutches are provided, if the first and second pressure receiving surfaces are formed on one member, it is necessary to accurately form the taper of each pressure receiving surface. If the concentricity of the two pressure-receiving surfaces is shifted due to processing errors, one piece of contact (the friction surface is pressed reliably and uniformly on one pressure-receiving surface, but the friction surface is pressed uniformly on the other pressure-receiving surface) Phenomenon). When such a piece hitting occurs, it causes vibrations of the vehicle and abnormal wear of the friction material constituting the friction surface.
　そこで本発明では、第１コーンクラッチの第１受圧部と第２コーンクラッチの第２受圧部とを、径方向に相対移動可能にしている。このような構成では、各受圧部に形成された受圧面の同心度に加工誤差があっても、摩擦面が受圧面に押圧された際に、受圧部が適宜径方向にずれる。すなわち、受圧部が径方向に移動することによって、加工時のずれを吸収することができ、２つの受圧面と摩擦面との当たりが安定する。したがって、加工精度に起因する振動や、摩擦材の異常摩耗を抑えることができる。 Therefore, in the present invention, the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction. In such a configuration, even if there is a processing error in the concentricity of the pressure receiving surface formed in each pressure receiving portion, the pressure receiving portion is appropriately displaced in the radial direction when the friction surface is pressed against the pressure receiving surface. That is, when the pressure receiving portion moves in the radial direction, a shift during processing can be absorbed, and the contact between the two pressure receiving surfaces and the friction surface is stabilized. Therefore, vibration caused by processing accuracy and abnormal wear of the friction material can be suppressed.
　（２）好ましくは、クラッチ装置は、入力側の部材に連結可能なクラッチハウジングと、出力側の部材に連結可能な出力部材と、をさらに備えている。そして、出力部材と第１及び第２コーンクラッチとは、クラッチハウジングの内周部に収容されている。また、第１及び第２受圧部はクラッチハウジングの内周部に設けられ、第１及び第２摩擦部は出力部材の外周部に設けられている。 (2) Preferably, the clutch device further includes a clutch housing connectable to an input side member and an output member connectable to an output side member. The output member and the first and second cone clutches are accommodated in the inner peripheral portion of the clutch housing. The first and second pressure receiving portions are provided on the inner peripheral portion of the clutch housing, and the first and second friction portions are provided on the outer peripheral portion of the output member.
　ここでは、クラッチハウジングの内周部に第１及び第２コーンクラッチが配置されているので、装置全体をコンパクトにすることができる。 Here, since the first and second cone clutches are arranged on the inner peripheral portion of the clutch housing, the entire apparatus can be made compact.
　（３）好ましくは、第１受圧部は、クラッチハウジングとともに回転し、内周面に第１受圧面を有する第１クラッチシューを有している。また、第２受圧部は、クラッチハウジングとともに回転し、内周面に第２受圧面を有する第２クラッチシューを有する。 (3) Preferably, the first pressure receiving portion has a first clutch shoe that rotates together with the clutch housing and has a first pressure receiving surface on the inner peripheral surface. Further, the second pressure receiving portion has a second clutch shoe that rotates together with the clutch housing and has a second pressure receiving surface on the inner peripheral surface.
　ここでは、クラッチハウジングとは別に第１及び第２クラッチシューを設けているので、クラッチシューの各受圧面の仕様を変えることによって、広範囲な仕様に対応することができる。 Here, since the first and second clutch shoes are provided separately from the clutch housing, a wide range of specifications can be handled by changing the specifications of the pressure receiving surfaces of the clutch shoes.
　（４）好ましくは、クラッチハウジングは、円板部と、円板部の外周部から軸方向に延びて形成されるとともにハウジング側係合部を有する筒状部と、を有している。そして、第１及び第２クラッチシューは、外周部にハウジング側係合部と係合するシュー側係合部を有する。 (4) Preferably, the clutch housing has a disk part and a cylindrical part formed extending in the axial direction from the outer peripheral part of the disk part and having a housing side engaging part. And the 1st and 2nd clutch shoes have the shoe side engaging part engaged with a housing side engaging part in an outer peripheral part.
　（５）好ましくは、出力部材は、第１出力部材と、第２出力部材と、を有する。第１出力部材は、外周部に第１摩擦部を有する。第２出力部材は、外周部に第２摩擦部面を有し、軸方向に移動自在でかつ第１出力部材と同期して回転可能である。 (5) Preferably, the output member has a first output member and a second output member. The first output member has a first friction portion on the outer peripheral portion. The second output member has a second friction surface on the outer peripheral portion, is movable in the axial direction, and is rotatable in synchronization with the first output member.
　ここでは、第１及び第２出力部材の外周部に、２つのコーンクラッチを構成する摩擦部が形成されている。このため、構成が簡単になる。 Here, friction portions constituting two cone clutches are formed on the outer peripheral portions of the first and second output members. This simplifies the configuration.
　（６）好ましくは、第１及び第２コーンクラッチのオン、オフを制御するクラッチ制御部をさらに備えている。クラッチ制御部は、付勢部材と、レリーズ部材と、を有している。付勢部材は、第１出力部材を軸方向の第１側に付勢して第１摩擦面を第１受圧面に押圧する。レリーズ部材は、付勢部材を支持するとともに、付勢部材の付勢力によって第２出力部材を軸方向の第２側に付勢して第２摩擦面を第２受圧面に押圧する。 (6) Preferably, a clutch control unit for controlling on / off of the first and second cone clutches is further provided. The clutch control unit includes an urging member and a release member. The biasing member biases the first output member toward the first side in the axial direction and presses the first friction surface against the first pressure receiving surface. The release member supports the urging member and urges the second output member toward the second side in the axial direction by the urging force of the urging member to press the second friction surface against the second pressure receiving surface.
　ここでは、付勢部材によって、第１出力部材と第２出力部材とが互いに引き寄せられるように付勢される。このため、付勢力が他の部材に作用せず、付勢力を受けるための特別な部材が不要になる。 Here, the first output member and the second output member are biased by the biasing member so as to be attracted to each other. For this reason, the urging force does not act on other members, and a special member for receiving the urging force becomes unnecessary.
　（７）好ましくは、レリーズ部材はレリーズ機構によって軸方向に移動可能である。そして、レリーズ部材が第１側に移動させられることによって、第１及び第２コーンクラッチはクラッチオフになる。 (7) Preferably, the release member is movable in the axial direction by a release mechanism. When the release member is moved to the first side, the first and second cone clutches are clutched off.
　（８）好ましくは、第１出力部材と第２出力部材とは軸方向に対向して配置されている。そして、第１受圧面及び第１摩擦面は、軸方向の第１側に向かって径が小さくなるテーパ状である。また、第２受圧面及び第２摩擦面は、軸方向の第２側に向かって径が小さくなるテーパ状である。 (8) Preferably, the first output member and the second output member are arranged to face each other in the axial direction. The first pressure receiving surface and the first friction surface are tapered so that the diameter decreases toward the first side in the axial direction. Further, the second pressure receiving surface and the second friction surface are tapered so that the diameter decreases toward the second side in the axial direction.
　ここでは、第１及び第２コーンクラッチが軸方向に占めるスペースをコンパクトにすることができる。 Here, the space occupied by the first and second cone clutches in the axial direction can be made compact.
　以上のような本発明では、クラッチ装置のコストを低減することができる。また、本発明では、２つのコーンクラッチによって２面の摩擦面を設けているので、押し付け荷重を大きくすることなく、すなわち、レリーズ操作荷重を大きくすることなく、必要なトルク容量を確保することができる。 In the present invention as described above, the cost of the clutch device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.
　また、本発明では、第１コーンクラッチの第１受圧部と第２コーンクラッチの第２受圧部とを、径方向に相対移動可能にしている。このため、各受圧部の受圧面の加工時のずれを吸収することができ、加工誤差に起因する車両の振動や、摩擦材の異常摩耗を抑えることができる。 In the present invention, the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction. For this reason, the shift | offset | difference at the time of a process of the pressure receiving surface of each pressure receiving part can be absorbed, and the vibration of the vehicle resulting from a process error and the abnormal wear of a friction material can be suppressed.
本発明の一実施形態によるモータサイクル用クラッチ装置の断面図。1 is a cross-sectional view of a motorcycle clutch device according to an embodiment of the present invention. 図１の装置の正面部分図。FIG. 2 is a partial front view of the apparatus of FIG. 1. 図１の装置の断面部分図。FIG. 2 is a partial cross-sectional view of the apparatus of FIG. 図１の装置の断面部分図。FIG. 2 is a partial cross-sectional view of the apparatus of FIG.
　図１はクラッチ装置の一例としてのモータサイクル用クラッチ装置の断面図、図２はモータサイクル用クラッチ装置の正面部分図である。なお、以下の説明において、「軸方向」とは図１の左右方向を示し、「軸方向内側」（第１側）とは図１の左側を示し、「軸方向外側」（第２側）とは図１の右側を示す。 FIG. 1 is a cross-sectional view of a motorcycle clutch device as an example of a clutch device, and FIG. 2 is a front partial view of the motorcycle clutch device. In the following description, “axial direction” indicates the left-right direction in FIG. 1, “axially inner” (first side) indicates the left side of FIG. 1, and “axially outer” (second side). Indicates the right side of FIG.
　［全体構成］
　モータサイクル用クラッチ装置は、エンジンのクランク軸からの動力をトランスミッションに伝達するとともに、レリーズ機構の操作によって動力伝達を遮断するためのものである。このクラッチ装置は、クラッチハウジング１と、クラッチシュー２と、出力部材３と、クラッチ制御部４と、を備えている。 [overall structure]
The motorcycle clutch device transmits power from the crankshaft of the engine to a transmission and interrupts power transmission by operating a release mechanism. The clutch device includes a clutch housing 1, a clutch shoe 2, an output member 3, and a clutch control unit 4.
　［クラッチハウジング１］
　クラッチハウジング１は、円板部６及び筒状部７を有し、入力ギア８に連結されている。入力ギア８は、エンジン側のクランク軸に固定された駆動ギア（図示せず）に噛み合っており、エンジンから動力が入力される。 [Clutch housing 1]
The clutch housing 1 has a disc portion 6 and a cylindrical portion 7 and is connected to an input gear 8. The input gear 8 meshes with a drive gear (not shown) fixed to the crankshaft on the engine side, and power is input from the engine.
　円板部６には、中心部にトランスミッションの軸が挿入される孔６ａが形成されている。また、円板部６の径方向の中間部には、軸方向内側に突出する複数の突起部６ｂが円周方向に所定の間隔で形成されている。突起部６ｂの周囲には弾性部材１０が装着され、この突起部６ｂ及び弾性部材１０が、入力ギア８に形成された孔８ａに挿入されている。 In the disc portion 6, a hole 6a into which a transmission shaft is inserted is formed in the center portion. Further, a plurality of protrusions 6b protruding inward in the axial direction are formed at a predetermined interval in the circumferential direction at the radial intermediate portion of the disk portion 6. An elastic member 10 is mounted around the protrusion 6 b, and the protrusion 6 b and the elastic member 10 are inserted into a hole 8 a formed in the input gear 8.
　また、円板部６の径方向中間部には、スプリング支持部６ｃが形成されている。このスプリング支持部６ｃと入力ギア８の側面に固定された支持プレート１１によって、スプリング１２が支持されている。スプリング１２は、クラッチハウジング１と入力ギア８とを回転方向に弾性的に連結している。なお、支持プレート１１はボルト１３及びナット１４によってクラッチハウジング１の突起部６ｂの先端に固定されている。支持プレート１１の内周部には、入力ギア８の側面との間に皿ばね１５が配置されている。 Further, a spring support portion 6 c is formed at the radial intermediate portion of the disc portion 6. The spring 12 is supported by the spring support portion 6 c and the support plate 11 fixed to the side surface of the input gear 8. The spring 12 elastically connects the clutch housing 1 and the input gear 8 in the rotational direction. The support plate 11 is fixed to the tip of the protrusion 6b of the clutch housing 1 by a bolt 13 and a nut 14. A disc spring 15 is disposed on the inner peripheral portion of the support plate 11 between the side surface of the input gear 8.
　筒状部７は、円板部６の外周縁から軸方向外側に延びるように形成されている。この筒状部７には、軸方向に延び、軸方向外側に開放する複数の切欠き７ａ（ハウジング側係合部）が円周方向に所定の間隔で形成されている。 The cylindrical portion 7 is formed so as to extend outward from the outer peripheral edge of the disc portion 6 in the axial direction. A plurality of notches 7a (housing side engaging portions) extending in the axial direction and opening outward in the axial direction are formed in the cylindrical portion 7 at predetermined intervals in the circumferential direction.
　［クラッチシュー２］
　クラッチシュー２は、２つに分割された第１クラッチシュー２０１（第１受圧部）及び第２クラッチシュー２０２（第２受圧部）を有している。第１クラッチシュー２０１及び第２クラッチシュー２０２は、それぞれ環状の部材であり、クラッチハウジング１の筒状部７の内周面に沿うように配置されている。また、第１クラッチシュー２０１は軸方向外側に配置され、第２クラッチシュー２０２は軸方向内側に配置されている。そして、第１クラッチシュー２０１と第２クラッチシュー２０２とは、径方向に相対的に移動が可能である。 [Clutch shoe 2]
The clutch shoe 2 has a first clutch shoe 201 (first pressure receiving portion) and a second clutch shoe 202 (second pressure receiving portion) divided into two. The first clutch shoe 201 and the second clutch shoe 202 are annular members, respectively, and are arranged along the inner peripheral surface of the cylindrical portion 7 of the clutch housing 1. Further, the first clutch shoe 201 is disposed on the outer side in the axial direction, and the second clutch shoe 202 is disposed on the inner side in the axial direction. The first clutch shoe 201 and the second clutch shoe 202 are relatively movable in the radial direction.
　第１クラッチシュー２０１は、図２及び図３に示すように、複数の爪２０１ａ（シュー側係合部）と、第１受圧面２０１ｂと、を有している。複数の爪２０１ａは、第１クラッチシュー２０１の外周面に、さらに外周側に突出するように形成されている。複数の爪２０１ａは、円周方向に所定の間隔で配置されており、各爪２０１ａは、クラッチハウジング１の筒状部７に形成された切欠き７ａに係合している。これにより、第１クラッチシュー２０１は、クラッチハウジング１に対して、軸方向に移動自在で、かつ回転不能である。第１受圧面２０１ｂは、第１クラッチシュー２０１の内周面に、軸方向外側の端面から軸方向内側に向かって径が小さくなるテーパ状に形成されている。 2 and 3, the first clutch shoe 201 has a plurality of claws 201a (shoe side engaging portions) and a first pressure receiving surface 201b. The plurality of claws 201a are formed on the outer peripheral surface of the first clutch shoe 201 so as to protrude further to the outer peripheral side. The plurality of claws 201 a are arranged at predetermined intervals in the circumferential direction, and each claw 201 a is engaged with a notch 7 a formed in the cylindrical portion 7 of the clutch housing 1. Thus, the first clutch shoe 201 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable. The first pressure receiving surface 201b is formed on the inner peripheral surface of the first clutch shoe 201 in a tapered shape whose diameter decreases from the end surface on the outer side in the axial direction toward the inner side in the axial direction.
　第２クラッチシュー２０２は、第１クラッチシュー２０１と同様に、複数の爪２０２ａ（シュー側係合部）と、第２受圧面２０２ｂと、を有している。複数の爪２０２ａは、第２クラッチシュー２０２の外周面に、さらに外周側に突出するように形成されている。複数の爪２０２ａは、円周方向に所定の間隔で配置されており、各爪２０２ａは、クラッチハウジング１の筒状部７に形成された切欠き７ａに係合している。これにより、第２クラッチシュー２０２は、クラッチハウジング１に対して、軸方向に移動自在で、かつ回転不能である。第２受圧面２０２ｂは、第２クラッチシュー２０２の内周面に、軸方向内側の端面から軸方向外側に向かって径が小さくなるテーパ状に形成されている。 As with the first clutch shoe 201, the second clutch shoe 202 has a plurality of claws 202a (shoe side engaging portions) and a second pressure receiving surface 202b. The plurality of claws 202a are formed on the outer peripheral surface of the second clutch shoe 202 so as to protrude further to the outer peripheral side. The plurality of claws 202 a are arranged at predetermined intervals in the circumferential direction, and each claw 202 a is engaged with a notch 7 a formed in the tubular portion 7 of the clutch housing 1. Thus, the second clutch shoe 202 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable. The second pressure receiving surface 202b is formed on the inner peripheral surface of the second clutch shoe 202 in a tapered shape whose diameter decreases from the axially inner end surface toward the axially outer side.
　［出力部材３］
　出力部材３は、クラッチハウジング１の内周部に収容されており、クラッチセンタ２１（第１出力部材）と、プレッシャプレート２２（第２出力部材）と、ハブ２３と、を有している。クラッチセンタ２１及びプレッシャプレート２２は、いずれも鉄製のプレート材を板金加工して形成されている。 [Output member 3]
The output member 3 is housed in the inner peripheral portion of the clutch housing 1, and includes a clutch center 21 (first output member), a pressure plate 22 (second output member), and a hub 23. The clutch center 21 and the pressure plate 22 are both formed by sheet metal processing of an iron plate material.
　クラッチセンタ２１は、図３に示すように、円板部２１ａ及び摩擦部２１ｂ（第１摩擦部）を有している。円板部２１ａの中央部にはスプライン孔２１ｃが形成されており、トランスミッションの軸にスプライン係合が可能である。また、円板部２１ａの径方向中間部には、４つの貫通孔２１ｄが円周方向に所定の間隔で形成されている。摩擦部２１ｂは、円板部２１ａの外周部を軸方向外側に折り曲げて形成されている。摩擦部２１ｂは、第１クラッチシュー２０１の第１受圧面２０１ｂに対向しており、第１受圧面２０１ｂと同じ傾斜を有するテーパ状に形成されている。摩擦部２１ｂの外周面には環状の第１摩擦材２５が固定されており、この第１摩擦材２５の表面が第１摩擦面２５ａとなっている。 As shown in FIG. 3, the clutch center 21 has a disc part 21 a and a friction part 21 b (first friction part). A spline hole 21c is formed in the central portion of the disc portion 21a, and the spline engagement is possible with the transmission shaft. Further, four through holes 21d are formed at predetermined intervals in the circumferential direction in the radial direction intermediate portion of the disc portion 21a. The friction part 21b is formed by bending the outer peripheral part of the disk part 21a outward in the axial direction. The friction part 21b faces the first pressure receiving surface 201b of the first clutch shoe 201 and is formed in a tapered shape having the same inclination as the first pressure receiving surface 201b. An annular first friction material 25 is fixed to the outer peripheral surface of the friction portion 21b, and the surface of the first friction material 25 is a first friction surface 25a.
　プレッシャプレート２２は、クラッチセンタ２１の軸方向内側に、クラッチセンタ２１と対向して軸方向に移動自在に配置されている。プレッシャプレート２２は円板部２２ａ及び摩擦部２２ｂ（第２摩擦部）を有している。円板部２２ａの中央部にはスプライン孔２２ｃが形成されている。また、円板部２２ａの内周部には、４つの貫通孔２２ｄが円周方向に所定の間隔で形成されている。摩擦部２２ｂは、円板部２２ａの外周部を軸方向内側に折り曲げて形成されている。摩擦部２２ｂは、第２クラッチシュー２０２の第２受圧面２０２ｂに対向しており、第２受圧面２０２ｂと同じ傾斜を有するテーパ状に形成されている。摩擦部２２ｂの外周面には環状の第２摩擦材２６が固定されており、この第２摩擦材２６の表面が第２摩擦面２６ａとなっている。 The pressure plate 22 is disposed on the inner side in the axial direction of the clutch center 21 so as to be opposed to the clutch center 21 and movable in the axial direction. The pressure plate 22 has a disc part 22a and a friction part 22b (second friction part). A spline hole 22c is formed at the center of the disc portion 22a. Further, four through holes 22d are formed at predetermined intervals in the circumferential direction in the inner peripheral portion of the disc portion 22a. The friction portion 22b is formed by bending the outer peripheral portion of the disc portion 22a inward in the axial direction. The friction portion 22b is opposed to the second pressure receiving surface 202b of the second clutch shoe 202, and is formed in a tapered shape having the same inclination as the second pressure receiving surface 202b. An annular second friction material 26 is fixed to the outer peripheral surface of the friction portion 22b, and the surface of the second friction material 26 is a second friction surface 26a.
　なお、第１及び第２摩擦材２５，２６は同じ材質であり、ここでは乗用車等に用いられる４輪車用の摩擦材が使用されている。 The first and second friction materials 25 and 26 are made of the same material, and here, a friction material for a four-wheeled vehicle used for a passenger car or the like is used.
　ハブ２３は、環状の部材であり、クラッチセンタ２１の内周部の軸方向内側の側面に当接するように、かつプレッシャプレート２２の内周部に配置されている。図３に示すように、ハブ２３の内周部には、スプライン孔２３ａが形成され、外周面にはスプライン軸２３ｂが形成されている。スプライン孔２３ａはトランスミッションの軸に係合可能である。また、スプライン軸２３ｂはプレッシャプレート２２のスプライン孔２２ｃに係合している。このプレッシャプレート２２のスプライン孔２２ｃとハブ２３のスプライン軸２３ｂとは、軸方向に摺動が可能に噛み合っている。 The hub 23 is an annular member, and is disposed on the inner peripheral portion of the pressure plate 22 so as to abut on the side surface on the inner side in the axial direction of the inner peripheral portion of the clutch center 21. As shown in FIG. 3, the spline hole 23a is formed in the inner peripheral part of the hub 23, and the spline shaft 23b is formed in the outer peripheral surface. The spline hole 23a can be engaged with a transmission shaft. The spline shaft 23 b is engaged with the spline hole 22 c of the pressure plate 22. The spline hole 22c of the pressure plate 22 and the spline shaft 23b of the hub 23 mesh with each other so as to be slidable in the axial direction.
　以上のように、クラッチセンタ２１はスプライン孔２１ｃによってトランスミッションの軸に連結可能であり、プレッシャプレート２２はハブ２３とのスプライン係合を介してトランスミッションの軸に連結可能である。したがって、クラッチセンタ２１とプレッシャプレート２２とは同期して回転することになる。 As described above, the clutch center 21 can be connected to the transmission shaft through the spline hole 21c, and the pressure plate 22 can be connected to the transmission shaft through the spline engagement with the hub 23. Therefore, the clutch center 21 and the pressure plate 22 rotate in synchronization.
　なお、ハブ２３の側面とクラッチハウジング１の内周部の側面との間には、図１に示すように、スラストプレート２７が配置されている。 A thrust plate 27 is disposed between the side surface of the hub 23 and the side surface of the inner peripheral portion of the clutch housing 1 as shown in FIG.
　［第１及び第２コーンクラッチＣ１，Ｃ２］
　以上のような構成では、第１クラッチシュー２０１の第１受圧面２０１ｂと、クラッチセンタ２１の外周部に形成された摩擦部２１ｂ及び第１摩擦面２５ａを有する第１摩擦材２５と、によって第１コーンクラッチＣ１が構成されている。また、第２クラッチシュー２０２の第２受圧面２０２ｂと、プレッシャプレート２２の外周部に形成された摩擦部２２ｂ及び第２摩擦面２６ａを有する第２摩擦材２６と、によって第２コーンクラッチＣ２が構成されている。 [First and second cone clutches C1, C2]
In the configuration as described above, the first pressure receiving surface 201b of the first clutch shoe 201 and the first friction material 25 having the friction portion 21b and the first friction surface 25a formed on the outer peripheral portion of the clutch center 21 A one-corn clutch C1 is configured. Further, the second cone clutch C2 is constituted by the second pressure receiving surface 202b of the second clutch shoe 202 and the second friction material 26 having the friction portion 22b and the second friction surface 26a formed on the outer peripheral portion of the pressure plate 22. It is configured.
　［クラッチ制御部４］
　クラッチ制御部４は、クラッチセンタ２１の軸方向外側に配置されており、レリーズ部材３０と、４つのコイルスプリング４０（付勢部材）と、を有している。 [Clutch control unit 4]
The clutch control unit 4 is disposed outside the clutch center 21 in the axial direction, and includes a release member 30 and four coil springs 40 (biasing members).
　レリーズ部材３０は、図示しないレリーズ機構によって軸方向に移動させられる。レリーズ部材３０は、図４に示すように、環状の本体部３１と、４つの突起部３２と、を有している。環状の本体部３１は、内周部をレリーズ機構のロッド等が貫通可能である。突起部３２は、本体部３１と一体で形成され、本体部３１から軸方向内側に突出している。突起部３２はクラッチセンタ２１の貫通孔２１ｄをプレッシャプレート２２側に向かって貫通している。突起部３２は、軸方向内側の先端部に所定の深さのねじ孔３２ａを有している。突起部３２の先端面はプレッシャプレート２２の軸方向外側の側面に当接している。そして、プレッシャプレート２２の軸方向内側の側面から貫通孔２２ｄを通して軸方向外側に延びるボルト３４が、突起部３２のねじ孔３２ａに螺合している。これにより、レリーズ部材３０はプレッシャプレート２２に固定されている。 The release member 30 is moved in the axial direction by a release mechanism (not shown). As shown in FIG. 4, the release member 30 has an annular main body 31 and four protrusions 32. The annular main body 31 can be penetrated by a rod of a release mechanism or the like through an inner peripheral portion. The protrusion 32 is formed integrally with the main body 31 and protrudes inward in the axial direction from the main body 31. The protrusion 32 penetrates the through hole 21d of the clutch center 21 toward the pressure plate 22 side. The protrusion 32 has a screw hole 32a having a predetermined depth at the tip end on the inner side in the axial direction. The tip end surface of the protrusion 32 is in contact with the axially outer side surface of the pressure plate 22. A bolt 34 extending outward in the axial direction from the side surface on the inner side in the axial direction of the pressure plate 22 through the through hole 22 d is screwed into the screw hole 32 a of the protrusion 32. Thereby, the release member 30 is fixed to the pressure plate 22.
　コイルスプリング４０は、図１、図４等に示すように、レリーズ部材３０の突起部３２の外周を囲むように配置されている。すなわち、コイルスプリング４０の内周部を突起部３２が貫通している。コイルスプリング４０の一端はレリーズ部材３０の本体部３１に当接し、他端はクラッチセンタ２１に当接している。
　ここでは、レリーズ操作がなされていない中立状態で、コイルスプリング４０は圧縮された状態でレリーズ部材３０とクラッチセンタ２１との間に装着されている。このため、コイルスプリング４０は、クラッチセンタ２１を軸方向内側に付勢するとともに、プレッシャプレート２２を軸方向外側に付勢している。 The coil spring 40 is disposed so as to surround the outer periphery of the protrusion 32 of the release member 30 as shown in FIGS. That is, the protrusion 32 passes through the inner peripheral portion of the coil spring 40. One end of the coil spring 40 is in contact with the main body 31 of the release member 30, and the other end is in contact with the clutch center 21.
Here, the coil spring 40 is mounted between the release member 30 and the clutch center 21 in a compressed state in a neutral state where no release operation is performed. For this reason, the coil spring 40 urges the clutch center 21 in the axial direction and urges the pressure plate 22 in the axial direction.
　［動作］
　レリーズ操作がなされていない状態では、レリーズ部材３０とクラッチセンタ２１とは、互いに離れる方向にコイルスプリング４０によって付勢されている。レリーズ部材３０はレリーズ機構によって支持されているので、コイルスプリング４０によって、クラッチセンタ２１は軸方向内側に付勢され、レリーズ部材３０に固定されたプレッシャプレート２２は軸方向外側に付勢されている。この結果、第１摩擦面２５ａが第１受圧面２０１ｂに押圧され、第２摩擦面２６ａが第２受圧面２０２ｂに押圧される。すなわち、第１コーンクラッチＣ１及び第２コーンクラッチＣ２がクラッチオン（動力伝達状態）になる。 [Operation]
When the release operation is not performed, the release member 30 and the clutch center 21 are urged by the coil spring 40 in a direction away from each other. Since the release member 30 is supported by the release mechanism, the clutch center 21 is urged inward in the axial direction by the coil spring 40, and the pressure plate 22 fixed to the release member 30 is urged in the axially outer side. . As a result, the first friction surface 25a is pressed against the first pressure receiving surface 201b, and the second friction surface 26a is pressed against the second pressure receiving surface 202b. That is, the first cone clutch C1 and the second cone clutch C2 are turned on (power transmission state).
　このような状態では、エンジンのクランク軸から入力ギア８等を介して入力されたトルクは、クラッチハウジング１から第１及び第２コーンクラッチＣ１，Ｃ２を介してクラッチセンタ２１及びプレッシャプレート２２に伝達される。 In such a state, torque input from the crankshaft of the engine via the input gear 8 or the like is transmitted from the clutch housing 1 to the clutch center 21 and the pressure plate 22 via the first and second cone clutches C1 and C2. Is done.
　以上のようにしてクラッチセンタ２１に伝達されたトルクは、クラッチセンタ２１のスプライン孔２１ｃを介してトランスミッションの軸に伝達される。また、プレッシャプレート２２に伝達されたトルクは、プレッシャプレート２２からハブ２３を介してトランスミッションの軸に伝達される。 The torque transmitted to the clutch center 21 as described above is transmitted to the transmission shaft through the spline hole 21c of the clutch center 21. The torque transmitted to the pressure plate 22 is transmitted from the pressure plate 22 to the transmission shaft via the hub 23.
　ここで、仮に第１クラッチシュー２０１と第２クラッチシュー２０２とが一体で形成されている場合、加工誤差によって第１受圧面２０１ｂと第２受圧面２０２ｂの同心度がずれることがある。２つの受圧面が１つの部材に形成され、その２つの受圧面の同心度がずれると、一方の受圧面に対して摩擦面が均一に当接しても、他方の受圧面に対して摩擦面が均一に当接しなくなる。このような場合は、車両に振動が生じたり、摩擦材が以上摩耗したりすることになる。 Here, if the first clutch shoe 201 and the second clutch shoe 202 are integrally formed, the concentricity of the first pressure receiving surface 201b and the second pressure receiving surface 202b may be shifted due to a processing error. If two pressure receiving surfaces are formed on one member and the two concentricities deviate from each other, even if the friction surface uniformly contacts one pressure receiving surface, the friction surface against the other pressure receiving surface Will not contact evenly. In such a case, vibration is generated in the vehicle or the friction material is worn out.
　しかし、この実施形態では、第１受圧面２０１ｂと第２受圧面２０２ｂとが径方向に相対的に移動可能である。このため、各受圧面のテーパ加工時に加工誤差があっても、受圧面が摩擦面の押圧によって径方向に移動し、加工誤差が吸収され、いずれの受圧面に対しても摩擦面を均一に当接させて押圧することができる。 However, in this embodiment, the first pressure receiving surface 201b and the second pressure receiving surface 202b are relatively movable in the radial direction. For this reason, even if there is a machining error when tapering each pressure-receiving surface, the pressure-receiving surface moves in the radial direction by pressing the friction surface, the processing error is absorbed, and the friction surface is made uniform on any pressure-receiving surface It can be pressed against each other.
　一方、ライダーがクラッチレバーを握ると、その操作力はクラッチワイヤ等を介してレリーズ機構に伝達される。このレリーズ機構によって、レリーズ部材３０はコイルスプリング４０の付勢力に抗して軸方向内側に移動させられる。レリーズ部材３０が軸方向内側に移動させられると、レリーズ部材３０に固定されたプレッシャプレート２２も軸方向内側に移動する。このため、プレッシャプレート２２の第２クラッチシュー２０２（第２受圧面２０２ｂ）への押圧力が解除される。また、クラッチセンタ２１はハブ２３によって軸方向内側への移動が規制されているので、プレッシャプレート２２の第２クラッチシュー２０２への押圧力が解除されると、第１クラッチシュー２０１の第１受圧面２０１ｂと第１摩擦面２５ａとの間の押圧力も解除される。 On the other hand, when the rider grips the clutch lever, the operating force is transmitted to the release mechanism via the clutch wire or the like. With this release mechanism, the release member 30 is moved inward in the axial direction against the urging force of the coil spring 40. When the release member 30 is moved inward in the axial direction, the pressure plate 22 fixed to the release member 30 also moves inward in the axial direction. For this reason, the pressing force of the pressure plate 22 on the second clutch shoe 202 (second pressure receiving surface 202b) is released. Further, since the clutch center 21 is restricted from moving inward in the axial direction by the hub 23, the first pressure receiving force of the first clutch shoe 201 is released when the pressing force of the pressure plate 22 to the second clutch shoe 202 is released. The pressing force between the surface 201b and the first friction surface 25a is also released.
　以上のようにして、第１コーンクラッチＣ１及び第２コーンクラッチＣ２はクラッチオフ（動力伝達の解除：遮断）となる。このクラッチオフ状態では、クラッチハウジング１からの回転はクラッチセンタ２１及びプレッシャプレート２２には伝達されない。 As described above, the first cone clutch C1 and the second cone clutch C2 are clutch-off (release of power transmission: cutoff). In this clutch-off state, rotation from the clutch housing 1 is not transmitted to the clutch center 21 and the pressure plate 22.
　［他の実施形態］
　以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。 [Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention.
　（ａ）前記実施形態では、クラッチセンタ２１の一部を利用して第１コーンクラッチＣ１を構成し、プレッシャプレート２２の一部を利用して第２コーンクラッチＣ２を構成したが、クラッチセンタ及びプレッシャプレートとコーンクラッチとを別々に構成してもよい。 (A) In the above embodiment, the first cone clutch C1 is configured using a part of the clutch center 21 and the second cone clutch C2 is configured using a part of the pressure plate 22. The pressure plate and the cone clutch may be configured separately.
　（ｂ）前記実施形態のクラッチハウジング１、クラッチセンタ２１、プレッシャプレート２２、レリーズ部材３０の形状、構造は一例であって、種々の変形が可能である。また、クラッチセンタ２１の突起部３２の数、コイルスプリング４０の数などは一例であって、特に前記実施形態の数に限定されない。 (B) The shapes and structures of the clutch housing 1, the clutch center 21, the pressure plate 22, and the release member 30 of the above embodiment are merely examples, and various modifications are possible. Moreover, the number of the protrusion parts 32 of the clutch center 21, the number of the coil springs 40, etc. are examples, and are not limited to the number of the said embodiment especially.
　（ｃ）前記実施形態では、クラッチ装置としてモータサイクル用クラッチ装置を例にとって説明したが、他の車両用あるいは動力機械のクラッチ装置にも本発明と同様に適用することができる。 (C) In the above-described embodiment, the motorcycle clutch device is described as an example of the clutch device, but the present invention can be applied to other vehicle or power machine clutch devices in the same manner as the present invention.
　本発明のクラッチ装置では、装置のコストを低減することができる。また、本発明では、２つのコーンクラッチによって２面の摩擦面を設けているので、押し付け荷重を大きくすることなく、すなわち、レリーズ操作荷重を大きくすることなく、必要なトルク容量を確保することができる。 In the clutch device of the present invention, the cost of the device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.
１　クラッチハウジング
２　クラッチシュー
２０１　第１クラッチシュー
２０２　第２クラッチシュー
２０１ａ，２０２ａ　爪（シュー側係合部）
２０１ｂ　第１受圧面
２０２ｂ　第２受圧面
３　出力部材
４　クラッチ制御部
６　円板部
７　筒状部
７ａ　切欠き（ハウジング側係合部）
２１　クラッチセンタ（第１出力部材）
２２　プレッシャプレート（第２出力部材）
２５ａ　第１摩擦面
２６ａ　第２摩擦面
３０　レリーズ部材
４０　コイルスプリング（付勢部材）
Ｃ１　第１コーンクラッチ
Ｃ２　第２コーンクラッチ DESCRIPTION OF SYMBOLS 1 Clutch housing 2 Clutch shoe 201 1st clutch shoe 202 2nd clutch shoe 201a, 202a Claw (Shoe side engaging part)
201b 1st pressure receiving surface 202b 2nd pressure receiving surface 3 Output member 4 Clutch control part 6 Disk part 7 Cylindrical part 7a Notch (housing side engaging part)
21 Clutch center (first output member)
22 Pressure plate (second output member)
25a First friction surface 26a Second friction surface 30 Release member 40 Coil spring (biasing member)
C1 1st cone clutch C2 2nd cone clutch

Claims (8)

  1. 　動力が入力される入力側の部材と動力が出力される出力側の部材との間に配置されるクラッチ装置であって、
    　テーパ状の第１受圧面を有する第１受圧部と、前記第１受圧面に押圧される第１摩擦面を有する第１摩擦部と、を有し、前記入力側の部材と前記出力側の部材との間で動力の伝達及び遮断を行う第１コーンクラッチと、
    　テーパ状の第２受圧面を有し前記第１受圧部と径方向に相対移動可能な第２受圧部と、前記第２受圧面に押圧される第２摩擦面を有する第２摩擦部と、を有し、前記第１コーンクラッチと軸方向に並べて配置され、前記第１コーンクラッチとともに前記入力側の部材と前記出力側の部材との間で動力の伝達及び遮断を行う第２コーンクラッチと、
    を備えたクラッチ装置。     A clutch device disposed between an input-side member to which power is input and an output-side member from which power is output;
    A first pressure receiving portion having a tapered first pressure receiving surface; and a first friction portion having a first friction surface pressed against the first pressure receiving surface, the input side member and the output side A first cone clutch that transmits and cuts power to and from the member;
    A second pressure receiving portion having a tapered second pressure receiving surface and movable relative to the first pressure receiving portion in the radial direction; a second friction portion having a second friction surface pressed against the second pressure receiving surface; A second cone clutch that is arranged side by side in the axial direction with the first cone clutch, and transmits and shuts off power between the input side member and the output side member together with the first cone clutch; ,
    A clutch device comprising:
  2. 　前記入力側の部材に連結可能なクラッチハウジングと、
    　前記出力側の部材に連結可能な出力部材と、
    をさらに備え、
    　前記出力部材と前記第１及び第２コーンクラッチとは、前記クラッチハウジングの内周部に収容され、
    　前記第１及び第２受圧部は前記クラッチハウジングの内周部に設けられ、前記第１及び第２摩擦部は前記出力部材の外周部に設けられている、
    請求項１に記載のクラッチ装置。     A clutch housing connectable to the input side member;
    An output member connectable to the output side member;
    Further comprising
    The output member and the first and second cone clutches are accommodated in an inner peripheral portion of the clutch housing,
    The first and second pressure receiving portions are provided on an inner peripheral portion of the clutch housing, and the first and second friction portions are provided on an outer peripheral portion of the output member;
    The clutch device according to claim 1.
  3. 　前記第１受圧部は、前記クラッチハウジングとともに回転し、内周面に前記第１受圧面を有する第１クラッチシューを有し、
    　前記第２受圧部は、前記クラッチハウジングとともに回転し、内周面に前記第２受圧面を有する第２クラッチシューを有する、
    請求項２に記載のクラッチ装置。     The first pressure receiving portion has a first clutch shoe that rotates together with the clutch housing and has the first pressure receiving surface on an inner peripheral surface;
    The second pressure receiving portion includes a second clutch shoe that rotates together with the clutch housing and has the second pressure receiving surface on an inner peripheral surface thereof.
    The clutch device according to claim 2.
  4. 　前記クラッチハウジングは、円板部と、前記円板部の外周部から軸方向に延びて形成されるとともにハウジング側係合部を有する筒状部と、を有し、
    　前記第１及び第２クラッチシューは、外周部に前記ハウジング側係合部と係合するシュー側係合部を有する、
    　請求項３に記載のクラッチ装置。     The clutch housing includes a disk part, and a cylindrical part formed extending in the axial direction from the outer peripheral part of the disk part and having a housing side engaging part,
    The first and second clutch shoes have a shoe side engaging portion that engages with the housing side engaging portion on an outer peripheral portion,
    The clutch device according to claim 3.
  5. 　前記出力部材は、
    　外周部に前記第１摩擦部を有する第１出力部材と、
    　外周部に前記第２摩擦部を有し、軸方向に移動自在でかつ前記第１出力部材と同期して回転可能な第２出力部材と、
    を有する、
    請求項２から４のいずれかに記載のクラッチ装置。     The output member is
    A first output member having the first friction portion on the outer periphery;
    A second output member having the second friction part on an outer peripheral part, movable in the axial direction and rotatable in synchronization with the first output member;
    Having
    The clutch device according to any one of claims 2 to 4.
  6. 　前記第１及び第２コーンクラッチのオン、オフを制御するクラッチ制御部をさらに備え、
    　前記クラッチ制御部は、
    　前記第１出力部材を軸方向の第１側に付勢して前記第１摩擦面を前記第１受圧面に押圧する付勢部材と、
    　前記付勢部材を支持するとともに、前記付勢部材の付勢力によって前記第２出力部材を軸方向の第２側に付勢して前記第２摩擦面を前記第２受圧面に押圧するためのレリーズ部材と、
    を有する、
    請求項５に記載のクラッチ装置。     A clutch control unit for controlling on and off of the first and second cone clutches;
    The clutch control unit
    A biasing member that biases the first output member toward the first side in the axial direction and presses the first friction surface against the first pressure receiving surface;
    For supporting the urging member and urging the second output member toward the second side in the axial direction by the urging force of the urging member to press the second friction surface against the second pressure receiving surface. A release member;
    Having
    The clutch device according to claim 5.
  7. 　前記レリーズ部材は前記レリーズ機構によって軸方向に移動可能であり、
    　前記レリーズ部材が前記第１側に移動させられることによって、前記第１及び第２コーンクラッチはクラッチオフになる、
    請求項６に記載のクラッチ装置。     The release member is movable in the axial direction by the release mechanism;
    When the release member is moved to the first side, the first and second cone clutches are turned off.
    The clutch device according to claim 6.
  8. 　前記第１出力部材と前記第２出力部材とは軸方向に対向して配置されており、
    　前記第１受圧面及び前記第１摩擦面は、軸方向の第１側に向かって径が小さくなるテーパ状であり、
    　前記第２受圧面及び前記第２摩擦面は、軸方向の第２側に向かって径が小さくなるテーパ状である、
    請求項５から７のいずれかに記載のクラッチ装置。     The first output member and the second output member are arranged to face each other in the axial direction,
    The first pressure receiving surface and the first friction surface are tapered so that the diameter decreases toward the first side in the axial direction,
    The second pressure receiving surface and the second friction surface are tapered so that the diameter decreases toward the second side in the axial direction.
    The clutch device according to any one of claims 5 to 7.
PCT/JP2017/031714 2016-09-30 2017-09-04 Clutch device WO2018061627A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-194186 2016-09-30
JP2016194186A JP2018054092A (en) 2016-09-30 2016-09-30 Clutch device

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026733A (en) * 1932-10-08 1936-01-07 Gustave Fast Engineering Corp Friction clutch
JP2013185675A (en) * 2012-03-09 2013-09-19 Exedy Corp Clutch device for motor cycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026733A (en) * 1932-10-08 1936-01-07 Gustave Fast Engineering Corp Friction clutch
JP2013185675A (en) * 2012-03-09 2013-09-19 Exedy Corp Clutch device for motor cycle

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