WO2018061639A1 - Motorcycle clutch device - Google Patents

Motorcycle clutch device Download PDF

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Publication number
WO2018061639A1
WO2018061639A1 PCT/JP2017/031765 JP2017031765W WO2018061639A1 WO 2018061639 A1 WO2018061639 A1 WO 2018061639A1 JP 2017031765 W JP2017031765 W JP 2017031765W WO 2018061639 A1 WO2018061639 A1 WO 2018061639A1
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WIPO (PCT)
Prior art keywords
clutch
output member
output
axial direction
pressure receiving
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PCT/JP2017/031765
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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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Publication of WO2018061639A1 publication Critical patent/WO2018061639A1/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 motorcycle clutch device, and more particularly to a motorcycle clutch device that transmits power from a motorcycle power source to a transmission-side member and interrupts power transmission by operating a release mechanism.
  • a clutch device is used to transmit or cut off torque from a power source such as an engine to a transmission.
  • the clutch device includes a clutch housing, a clutch center, a pressure plate, and a clutch portion.
  • the clutch housing is connected to the crankshaft side of the engine, and the clutch center is connected to the input shaft of the transmission.
  • the clutch portion is disposed between the clutch center and the pressure plate, and transmits power (clutch on) and releases power transmission (clutch off) between the clutch housing and the clutch center.
  • the pressure plate is moved in the axial direction by the release member, whereby the on / off of the clutch is controlled.
  • the clutch portion has a clutch plate to which a friction material is affixed, but the friction material for a four-wheeled vehicle used for a passenger car or the like has a property of attacking an aluminum material. For this reason, it is necessary to use a friction material for a two-wheeled vehicle that is more expensive than a friction material for a four-wheeled vehicle for a conventional aluminum pressure plate.
  • An object of the present invention is to reduce the cost of a motorcycle clutch device.
  • a motorcycle clutch device is a device that transmits power from a motorcycle power source to a member on the transmission side and interrupts power transmission by operating a release mechanism.
  • the motorcycle clutch device includes a clutch housing, a first output member, a second output member, a first cone clutch, a second cone clutch, an urging member, and a release member.
  • the clutch housing is connected to the input side member.
  • the first output member is connected to the output side member.
  • the second output member is disposed opposite to the first output member in the axial direction, is movable in the axial direction, and is rotatable in synchronization with the first output member.
  • the first cone clutch has a tapered first pressure receiving surface and a first friction surface pressed against the first pressure receiving surface by an urging force applied via the first output member, and includes a clutch housing and a first Power is transmitted to and shut off from one output member.
  • the second cone clutch has a tapered second pressure receiving surface and a second friction surface pressed against the second pressure receiving surface by an urging force applied via the second output member. Transmits and shuts off power between the two output members.
  • the biasing member biases the first and second output members to bring the first and second cone clutches into a power transmission state.
  • the release member has a plurality of protrusions that extend toward the second output member and are fixed to the second output member, and releases the urging force on the first and second output members.
  • the first and second cone clutches are in a power transmission state (clutch on) by the biasing force of the biasing member, and power is transmitted from the clutch housing to the first and second output members.
  • the release member is operated by the release mechanism and the urging force to the first and second output members is released, the power transmission by the first and second cone clutches is released (clutch off).
  • the release member a plurality of protrusions are provided on the release member, and the protrusions and the second output member are fixed. For this reason, it is not necessary to provide a projection part in the 2nd output member, and the 2nd output member can be formed by sheet metal processing by a plate. Further, since the second output member can be formed of an iron plate, the friction material that contacts the second output member can be a relatively inexpensive friction material for a four-wheeled vehicle. Therefore, the cost of the apparatus can be reduced.
  • the clutch portion is a cone clutch
  • 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.
  • the first pressure receiving surface and the second pressure receiving surface are provided on the inner peripheral portion of the clutch housing.
  • the first friction surface is provided on the outer peripheral portion of the first output member, and the second friction surface is provided on the outer peripheral portion of the second output member.
  • the entire apparatus can be made compact.
  • the first and second cone clutches rotate together with the clutch housing, and have clutch shoes having the first and second pressure receiving surfaces on the inner peripheral surface.
  • the clutch shoe is provided, it is possible to cope with a wide range of specifications by changing the specifications of each pressure receiving surface of the clutch shoe.
  • 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 clutch shoe has a shoe side engaging portion that engages with the housing side engaging portion on the outer peripheral portion.
  • the clutch housing and the clutch shoe are formed as separate bodies and connected via respective engaging portions. For this reason, manufacture of each member becomes easy.
  • the first pressure receiving surface and the first friction surface are tapered such that the diameter decreases toward the first side in the axial direction, and the second pressure receiving surface and the second friction surface are in the axial direction. It has a tapered shape whose diameter decreases toward the second side.
  • the space occupied by the first and second cone clutches in the axial direction can be made compact.
  • the second output member is disposed on the first side in the axial direction of the first output member.
  • the first output member is disposed on the second side in the axial direction of the second output member and on the first side of the release member, and has a hole through which the protrusion of the release member passes.
  • the plurality of protrusions of the release member have a screw hole extending in the axial direction at the center. And it is further provided with a plurality of screw members that are screwed into the screw holes of the release member from the first side in the axial direction of the second output member to fix the second output member and the release member.
  • the urging member is a coil spring disposed so that the protrusion of the release member penetrates the inner peripheral portion.
  • the coil spring has an axial first end portion supported by the first output member, an axial second end portion supported by the release member, and the first output member disposed on the first side. And the second output member is biased to the second side.
  • the first output member and the second output member are biased by the coil spring 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 second output member can be formed of an iron plate by sheet metal processing, and a relatively inexpensive friction material for a four-wheeled vehicle can be used as the friction material. The cost of the apparatus can be reduced.
  • 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
  • FIG. 2 is a partial front 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 is an annular member and is disposed along the inner peripheral surface of the cylindrical portion 7 of the clutch housing 1. As shown in FIGS. 2 and 3, the clutch shoe 2 has a plurality of claws 2 a (shoe side engaging portions), a first pressure receiving surface 2 b, and a second pressure receiving surface 2 c.
  • the plurality of claws 2a are formed on the outer peripheral surface of the clutch shoe 2 so as to protrude further to the outer peripheral side.
  • the plurality of claws 2 a are arranged at a predetermined interval in the circumferential direction, and each claw 2 a is engaged with a notch 7 a formed in the cylindrical portion 7 of the clutch housing 1.
  • the clutch shoe 2 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
  • the first pressure receiving surface 2b is formed in the outer half of the axial direction on the inner peripheral surface of the clutch shoe 2.
  • the first pressure receiving surface 2b is formed in a tapered shape whose diameter decreases from the axially outer end surface of the clutch shoe 2 toward the axially inner side.
  • the second pressure receiving surface 2c is formed in the inner half surface of the clutch shoe 2 in the half region on the inner side in the axial direction.
  • the second pressure receiving surface 2c is formed in a tapered shape whose diameter decreases from the axially inner end surface of the clutch shoe 2 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 21a and a friction part 21b as shown in FIG.
  • 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 2b of the clutch shoe 2, and is formed in a tapered shape having the same inclination as the first pressure receiving surface 2b.
  • 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.
  • 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 part 22b faces the second pressure receiving surface 2c of the clutch shoe 2, and is formed in a tapered shape having the same inclination as the second pressure receiving surface 2c.
  • 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 cone clutches C1, C2 In the above configuration, the first cone is formed by the first pressure receiving surface 2b of the clutch shoe 2 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 clutch C1 is configured.
  • a second cone clutch C2 is configured by the second pressure receiving surface 2c of the clutch shoe 2 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. ing.
  • 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 release mechanism 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 clutch shoe 2 (second pressure receiving surface 2c) is released. Further, since the clutch center 21 is restricted from moving inward in the axial direction by the hub 23, when the pressing force of the pressure plate 22 on the clutch shoe 2 is released, the first pressure receiving surface 2b of the clutch shoe 2 and the first pressure receiving surface 2b are arranged. The pressing force between 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 clutch housing 1 and the clutch shoe 2 are configured separately.
  • the first and second pressure receiving surfaces are formed on a part of the clutch housing by devising the configuration of the clutch housing. Also good.
  • the first and second pressure receiving surfaces 2b and 2c are formed on one clutch shoe 2, but two clutch shoes may be provided, and the pressure receiving surfaces may be formed respectively.
  • the second output member can be formed of a steel plate made of an iron plate, and a relatively inexpensive friction material for a four-wheeled vehicle can be used as the friction material. Therefore, the cost of the apparatus can be reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The present invention reduces the cost of motorcycle clutch devices. This device is equipped with a clutch center (21), a pressure plate (22), two cone clutches (C1, C2), a coil spring (40), and a release member (30). The two cone clutches (C1, C2) are respectively provided with a pressure-receiving surface (2b, 2c) and a friction surface (25a, 26a) that is pressed against the pressure-receiving surface (2b, 2c) by a biasing force. The coil spring (40) biases the clutch center (21) and the pressure plate (22), whereby the cone clutches (C1, C2) become placed in a power transmitting state. The release member (30) is provided with a plurality of protruding portions (32) which extend toward the pressure plate (22) and are secured to the pressure plate (22), and releases the biasing force on the clutch center (21) and the pressure plate (22).

Description

モータサイクル用クラッチ装置Motorcycle clutch device
　本発明は、モータサイクル用クラッチ装置、特に、モータサイクルの動力源からの動力をトランスミッション側の部材に伝達するとともに、レリーズ機構の作動により動力伝達を遮断するモータサイクル用クラッチ装置に関する。 The present invention relates to a motorcycle clutch device, and more particularly to a motorcycle clutch device that transmits power from a motorcycle power source to a transmission-side member and interrupts power transmission by operating a release mechanism.
　一般に、モータサイクルには、エンジン等の動力源からのトルクをトランスミッションに伝達又は遮断するためにクラッチ装置が用いられている。クラッチ装置は、クラッチハウジングと、クラッチセンタと、プレッシャプレートと、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、クラッチセンタはトランスミッションの入力軸に連結される。クラッチ部は、クラッチセンタとプレッシャプレートとの間に配置され、クラッチハウジングとクラッチセンタとの間で、動力を伝達したり（クラッチオン）、動力伝達を解除したり（クラッチオフ）する。プレッシャプレートは、レリーズ部材によって軸方向に移動させられ、これによりクラッチのオン、オフが制御される。 Generally, in a motorcycle, a clutch device is used to transmit or cut off torque from a power source such as an engine to a transmission. The clutch device includes a clutch housing, a clutch center, a pressure plate, and a clutch portion. The clutch housing is connected to the crankshaft side of the engine, and the clutch center is connected to the input shaft of the transmission. The clutch portion is disposed between the clutch center and the pressure plate, and transmits power (clutch on) and releases power transmission (clutch off) between the clutch housing and the clutch center. The pressure plate is moved in the axial direction by the release member, whereby the on / off of the clutch is controlled.
特開２０１３－１８５６７５号公報JP 2013-185675 A
　特許文献１に示されるような従来のモータサイクル用クラッチ装置は、プレッシャプレートとレリーズ部材とを連結するために、プレッシャプレートに軸方向に延びる複数の突起部を形成する必要がある。このため、プレッシャプレートはアルミダイキャストによって形成されている。 In a conventional motorcycle clutch device as disclosed in Patent Document 1, in order to connect a pressure plate and a release member, it is necessary to form a plurality of protrusions extending in the axial direction on the pressure plate. For this reason, the pressure plate is formed by aluminum die casting.
　プレッシャプレートの製造コストを抑えるためには、プレートを板金加工することが考えられるが、従来のプレッシャプレートの突起部を、プレートによる板金加工で形成することは非常に困難である。 In order to suppress the manufacturing cost of the pressure plate, it is conceivable to process the plate by sheet metal processing, but it is very difficult to form the protrusions of the conventional pressure plate by sheet metal processing using the plate.
　また、クラッチ部は摩擦材が貼り付けられたクラッチプレートを有しているが、乗用車等に使用される４輪車両用の摩擦材は、アルミ材を攻撃する性質を有している。このため、従来のアルミ製のプレッシャプレートに対しては、４輪車用の摩擦材に比較して高価な２輪車用の摩擦材を使用する必要がある。 Also, the clutch portion has a clutch plate to which a friction material is affixed, but the friction material for a four-wheeled vehicle used for a passenger car or the like has a property of attacking an aluminum material. For this reason, it is necessary to use a friction material for a two-wheeled vehicle that is more expensive than a friction material for a four-wheeled vehicle for a conventional aluminum pressure plate.
　本発明の課題は、モータサイクル用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 a motorcycle clutch device.
　（１）本発明に係るモータサイクル用クラッチ装置は、モータサイクルの動力源からの動力をトランスミッション側の部材に伝達するとともに、レリーズ機構の作動により動力伝達を遮断する装置である。このモータサイクル用クラッチ装置は、クラッチハウジングと、第１出力部材と、第２出力部材と、第１コーンクラッチと、第２コーンクラッチと、付勢部材と、レリーズ部材と、を備えている。クラッチハウジングは入力側部材に連結される。第１出力部材は出力側部材に連結される。第２出力部材は、第１出力部材と軸方向に対向して配置され、軸方向に移動自在で第１出力部材と同期して回転可能である。第１コーンクラッチは、テーパ状の第１受圧面と、第１出力部材を介して付与される付勢力によって第１受圧面に押圧される第１摩擦面と、を有し、クラッチハウジングと第１出力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受圧面と、第２出力部材を介して付与される付勢力によって第２受圧面に押圧される第２摩擦面と、を有し、クラッチハウジングと第２出力部材との間で動力の伝達及び遮断を行う。付勢部材は、第１及び第２出力部材を付勢して第１及び第２コーンクラッチを動力伝達状態にする。レリーズ部材は、第２出力部材に向かって延び第２出力部材に固定される複数の突起部を有し、第１及び第２出力部材に対する付勢力を解除する。 (1) A motorcycle clutch device according to the present invention is a device that transmits power from a motorcycle power source to a member on the transmission side and interrupts power transmission by operating a release mechanism. The motorcycle clutch device includes a clutch housing, a first output member, a second output member, a first cone clutch, a second cone clutch, an urging member, and a release member. The clutch housing is connected to the input side member. The first output member is connected to the output side member. The second output member is disposed opposite to the first output member in the axial direction, is movable in the axial direction, and is rotatable in synchronization with the first output member. The first cone clutch has a tapered first pressure receiving surface and a first friction surface pressed against the first pressure receiving surface by an urging force applied via the first output member, and includes a clutch housing and a first Power is transmitted to and shut off from one output member. The second cone clutch has a tapered second pressure receiving surface and a second friction surface pressed against the second pressure receiving surface by an urging force applied via the second output member. Transmits and shuts off power between the two output members. The biasing member biases the first and second output members to bring the first and second cone clutches into a power transmission state. The release member has a plurality of protrusions that extend toward the second output member and are fixed to the second output member, and releases the urging force on the first and second output members.
　この装置では、付勢部材の付勢力によって第１及び第２コーンクラッチが動力伝達状態（クラッチオン）にされ、クラッチハウジングから第１及び第２出力部材に動力が伝達される。一方、レリーズ機構によってレリーズ部材が作動し、第１及び第２出力部材への付勢力が解除されると、第１及び第２コーンクラッチによる動力伝達は解除（クラッチオフ）される。 In this device, the first and second cone clutches are in a power transmission state (clutch on) by the biasing force of the biasing member, and power is transmitted from the clutch housing to the first and second output members. On the other hand, when the release member is operated by the release mechanism and the urging force to the first and second output members is released, the power transmission by the first and second cone clutches is released (clutch off).
　ここでは、レリーズ部材に複数の突起部を設け、この突起部と第２出力部材とが固定されている。このため、第２出力部材に突起部を設ける必要がなく、第２出力部材をプレートによる板金加工によって形成することができる。また、第２出力部材を鉄製のプレートで形成できるので、第２出力部材に接触する摩擦材を、比較的安価な４輪車用の摩擦材にすることができる。したがって、装置のコストを低減できる。 Here, a plurality of protrusions are provided on the release member, and the protrusions and the second output member are fixed. For this reason, it is not necessary to provide a projection part in the 2nd output member, and the 2nd output member can be formed by sheet metal processing by a plate. Further, since the second output member can be formed of an iron plate, the friction material that contacts the second output member can be a relatively inexpensive friction material for a four-wheeled vehicle. Therefore, the cost of the apparatus can be reduced.
　ここで、クラッチ部をコーンクラッチにした場合、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, when the clutch portion is a cone clutch, it is necessary to reduce the taper angles of the pressure receiving surface and the friction surface in order to ensure a sufficient torque capacity with one 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、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, 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.
　（２）好ましくは、第１受圧面及び第２受圧面はクラッチハウジングの内周部に設けられている。また、第１摩擦面は第１出力部材の外周部に設けられ、第２摩擦面は第２出力部材の外周部に設けられている。 (2) Preferably, the first pressure receiving surface and the second pressure receiving surface are provided on the inner peripheral portion of the clutch housing. The first friction surface is provided on the outer peripheral portion of the first output member, and the second friction surface is provided on the outer peripheral portion of the second 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及び第２コーンクラッチは、クラッチハウジングとともに回転し、内周面に前記第１及び第２受圧面を有するクラッチシューを有する。 (3) Preferably, the first and second cone clutches rotate together with the clutch housing, and have clutch shoes having the first and second pressure receiving surfaces on the inner peripheral surface.
　ここでは、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 clutch shoe is provided, it is possible to cope with a wide range of specifications by changing the specifications of each pressure receiving surface of the clutch shoe.
　（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、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. The clutch shoe has a shoe side engaging portion that engages with the housing side engaging portion on the outer peripheral portion.
　ここでは、クラッチハウジングとクラッチシューとが別体で形成され、各係合部を介して連結されている。このため、各部材の製造が容易になる。 Here, the clutch housing and the clutch shoe are formed as separate bodies and connected via respective engaging portions. For this reason, manufacture of each member becomes easy.
　（５）好ましくは、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り、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。 (5) Preferably, the first pressure receiving surface and the first friction surface are tapered such that the diameter decreases toward the first side in the axial direction, and the second pressure receiving surface and the second friction surface are in the axial direction. It has a tapered shape whose diameter decreases toward the second side.
　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.
　（６）好ましくは、第２出力部材は、第１出力部材の軸方向の第１側に配置されている。また、第１出力部材は、第２出力部材の軸方向の第２側でかつレリーズ部材の第１側に配置されており、レリーズ部材の突起部が貫通する孔を有している。 (6) Preferably, the second output member is disposed on the first side in the axial direction of the first output member. The first output member is disposed on the second side in the axial direction of the second output member and on the first side of the release member, and has a hole through which the protrusion of the release member passes.
　（７）好ましくは、レリーズ部材の複数の突起部は中心部に軸方向に延びるねじ孔を有している。そして、第２出力部材の軸方向の第１側からレリーズ部材のねじ孔に螺合して第２出力部材とレリーズ部材とを固定する複数のねじ部材をさらに備えている。 (7) Preferably, the plurality of protrusions of the release member have a screw hole extending in the axial direction at the center. And it is further provided with a plurality of screw members that are screwed into the screw holes of the release member from the first side in the axial direction of the second output member to fix the second output member and the release member.
　（８）好ましくは、付勢部材は、レリーズ部材の突起部が内周部を貫通するように配置されたコイルスプリングである。そして、コイルスプリングは、軸方向の第１側の端部が第１出力部材に支持されるとともに、軸方向の第２側の端部がレリーズ部材に支持され、第１出力部材を第１側に付勢するとともに、第２出力部材を第２側に付勢する。 (8) Preferably, the urging member is a coil spring disposed so that the protrusion of the release member penetrates the inner peripheral portion. The coil spring has an axial first end portion supported by the first output member, an axial second end portion supported by the release member, and the first output member disposed on the first side. And the second output member is biased to the second side.
　ここでは、コイルスプリングによって、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 coil spring 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.
　以上のような本発明では、第２出力部材を鉄製のプレートを板金加工によって形成することができ、しかも、摩擦材として比較的安価な４輪車用の摩擦材を使用することができるので、装置のコストを低減することができる。 In the present invention as described above, the second output member can be formed of an iron plate by sheet metal processing, and a relatively inexpensive friction material for a four-wheeled vehicle can be used as the friction material. The cost of the apparatus can be reduced.
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, and FIG. 2 is a partial front 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、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。クラッチシュー２は、図２及び図３に示すように、複数の爪２ａ（シュー側係合部）と、第１受圧面２ｂと、第２受圧面２ｃと、を有している。 [Clutch shoe 2]
The clutch shoe 2 is an annular member and is disposed along the inner peripheral surface of the cylindrical portion 7 of the clutch housing 1. As shown in FIGS. 2 and 3, the clutch shoe 2 has a plurality of claws 2 a (shoe side engaging portions), a first pressure receiving surface 2 b, and a second pressure receiving surface 2 c.
　複数の爪２ａは、クラッチシュー２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２ａは、円周方向に所定の間隔で配置されており、各爪２ａ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、クラッチシュー２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。 The plurality of claws 2a are formed on the outer peripheral surface of the clutch shoe 2 so as to protrude further to the outer peripheral side. The plurality of claws 2 a are arranged at a predetermined interval in the circumferential direction, and each claw 2 a is engaged with a notch 7 a formed in the cylindrical portion 7 of the clutch housing 1. Thus, the clutch shoe 2 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
　第１受圧面２ｂは、クラッチシュー２の内周面において軸方向外側の半分の領域に形成されている。第１受圧面２ｂは、クラッチシュー２の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。 The first pressure receiving surface 2b is formed in the outer half of the axial direction on the inner peripheral surface of the clutch shoe 2. The first pressure receiving surface 2b is formed in a tapered shape whose diameter decreases from the axially outer end surface of the clutch shoe 2 toward the axially inner side.
　第２受圧面２ｃは、クラッチシュー２の内周面において軸方向内側の半分の領域に形成されている。第２受圧面２ｃは、クラッチシュー２の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。 The second pressure receiving surface 2c is formed in the inner half surface of the clutch shoe 2 in the half region on the inner side in the axial direction. The second pressure receiving surface 2c is formed in a tapered shape whose diameter decreases from the axially inner end surface of the clutch shoe 2 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、クラッチシュー２の第１受圧面２ｂに対向しており、第１受圧面２ｂ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。 The clutch center 21 has a disc part 21a and a friction part 21b as shown in FIG. 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 2b of the clutch shoe 2, and is formed in a tapered shape having the same inclination as the first pressure receiving surface 2b. 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、クラッチシュー２の第２受圧面２ｃに対向しており、第２受圧面２ｃ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. 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 part 22b faces the second pressure receiving surface 2c of the clutch shoe 2, and is formed in a tapered shape having the same inclination as the second pressure receiving surface 2c. 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、クラッチシュー２の第１受圧面２ｂ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、クラッチシュー２の第２受圧面２ｃ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 above configuration, the first cone is formed by the first pressure receiving surface 2b of the clutch shoe 2 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 clutch C1 is configured. A second cone clutch C2 is configured by the second pressure receiving surface 2c of the clutch shoe 2 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. ing.
　［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。 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.
　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。 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２ｂに押圧され、第２摩擦面２６ａが第２受圧面２ｃ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 2b, and the second friction surface 26a is pressed against the second pressure receiving surface 2c. 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.
　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のクラッチシュー２（第２受圧面２ｃ）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のクラッチシュー２への押圧力が解除されると、クラッチシュー２の第１受圧面２ｂ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 clutch shoe 2 (second pressure receiving surface 2c) is released. Further, since the clutch center 21 is restricted from moving inward in the axial direction by the hub 23, when the pressing force of the pressure plate 22 on the clutch shoe 2 is released, the first pressure receiving surface 2b of the clutch shoe 2 and the first pressure receiving surface 2b are arranged. The pressing force between 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）前記実施形態では、クラッチハウジング１とクラッチシュー２とを別体で構成したが、クラッチハウジングの構成を工夫して、クラッチハウジングの一部に第１及び第２受圧面を形成してもよい。 (B) In the above-described embodiment, the clutch housing 1 and the clutch shoe 2 are configured separately. However, the first and second pressure receiving surfaces are formed on a part of the clutch housing by devising the configuration of the clutch housing. Also good.
　（ｃ）前記実施形態では、１つのクラッチシュー２に第１及び第２受圧面２ｂ，２ｃを形成したが、２つのクラッチシューを設けて、それぞれに受圧面を形成してもよい。 (C) In the above-described embodiment, the first and second pressure receiving surfaces 2b and 2c are formed on one clutch shoe 2, but two clutch shoes may be provided, and the pressure receiving surfaces may be formed respectively.
　（ｄ）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。 (D) 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.
　本発明のモータサイクル用クラッチ装置では、第２出力部材を鉄製のプレートを板金加工によって形成することができ、しかも、摩擦材として比較的安価な４輪車用の摩擦材を使用することができるので、装置のコストを低減することができる。 In the motorcycle clutch device of the present invention, the second output member can be formed of a steel plate made of an iron plate, and a relatively inexpensive friction material for a four-wheeled vehicle can be used as the friction material. Therefore, the cost of the apparatus can be reduced.
１　クラッチハウジング
２　クラッチシュー
２ａ　爪（シュー側係合部）
２ｂ　第１受圧面
２ｃ　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）
２３　ハブ
２５ａ　第１摩擦面
２６ａ　第２摩擦面
３０　レリーズ部材
３２　突起部
３２ａ　ねじ孔
３４　ボルト
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 1 Clutch housing 2 Clutch shoe 2a Claw (Shoe side engaging part)
2b 1st pressure receiving surface 2c 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)
23 Hub 25a First friction surface 26a Second friction surface 30 Release member 32 Projection 32a Screw hole 34 Bolt 40 Coil spring (biasing member)
C1 1st cone clutch C2 2nd cone clutch

Claims (8)

  1. 　入力側部材からの動力を出力側部材に伝達するとともに、レリーズ機構の作動により動力伝達を遮断するモータサイクル用クラッチ装置であって、
    　前記入力側部材に連結されるクラッチハウジングと、
    　前記出力側部材に連結される第１出力部材と、
    　前記第１出力部材と軸方向に対向して配置され、軸方向に移動自在で前記第１出力部材と同期して回転可能な第２出力部材と、
    　テーパ状の第１受圧面と、前記第１出力部材を介して付与される付勢力によって前記第１受圧面に押圧される第１摩擦面と、を有し、前記クラッチハウジングと前記第１出力部材との間で動力の伝達及び遮断を行うための第１コーンクラッチと、
    　テーパ状の第２受圧面と、前記第２出力部材を介して付与される付勢力によって前記第２受圧面に押圧される第２摩擦面と、を有し、前記クラッチハウジングと前記第２出力部材との間で動力の伝達及び遮断を行うための第２コーンクラッチと、
    　前記第１及び前記第２出力部材を付勢して前記第１及び第２コーンクラッチを動力伝達状態にする付勢部材と、
    　前記第２出力部材に向かって延び前記第２出力部材に固定される複数の突起部を有し、前記第１及び第２出力部材に対する付勢力を解除するためのレリーズ部材と、
    を備えたモータサイクル用クラッチ装置。     A clutch device for a motorcycle that transmits power from an input side member to an output side member and interrupts power transmission by operation of a release mechanism,
    A clutch housing coupled to the input side member;
    A first output member coupled to the output side member;
    A second output member disposed axially opposite the first output member, movable in the axial direction and rotatable in synchronization with the first output member;
    A first pressure receiving surface having a tapered shape, and a first friction surface pressed against the first pressure receiving surface by an urging force applied via the first output member, the clutch housing and the first output. A first cone clutch for transmitting and cutting power to and from the member;
    A second pressure receiving surface having a taper shape, and a second friction surface pressed against the second pressure receiving surface by an urging force applied via the second output member, the clutch housing and the second output. A second cone clutch for transmitting and interrupting power to and from the member;
    A biasing member that biases the first and second output members to bring the first and second cone clutches into a power transmission state;
    A release member having a plurality of protrusions extending toward the second output member and fixed to the second output member, the release member for releasing the urging force against the first and second output members;
    The clutch device for motorcycles provided with.
  2. 　前記第１受圧面及び前記第２受圧面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摩擦面は前記第１出力部材の外周部に設けられ、
    　前記第２摩擦面は前記第２出力部材の外周部に設けられている、
    請求項１に記載のモータサイクル用クラッチ装置。     The first pressure receiving surface and the second pressure receiving surface are provided on an inner peripheral portion of the clutch housing,
    The first friction surface is provided on an outer periphery of the first output member;
    The second friction surface is provided on an outer periphery of the second output member;
    The motorcycle clutch device according to claim 1.
  3. 　前記第１及び第２コーンクラッチは、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及び第２受圧面を有するクラッチシューを有する、請求項１又は２に記載のモータサイクル用クラッチ装置。 The motorcycle clutch device according to claim 1 or 2, wherein the first and second cone clutches have a clutch shoe that rotates together with the clutch housing and has the first and second pressure receiving surfaces on an inner peripheral surface thereof.
  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、
    　前記クラッチシューは、外周部に前記クラッチハウジングの係合部と係合するシュー側係合部を有する、
    　請求項３に記載のモータサイクル用クラッチ装置。     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 clutch shoe has a shoe side engaging portion that engages with an engaging portion of the clutch housing on an outer peripheral portion.
    The motorcycle clutch device according to claim 3.
  5. 　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１から４のいずれかに記載のモータサイクル用クラッチ装置。     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 motorcycle clutch device according to any one of claims 1 to 4.
  6. 　前記第２出力部材は、前記第１出力部材の軸方向の第１側に配置され、
    　前記第１出力部材は、前記第２出力部材の軸方向の第２側でかつ前記レリーズ部材の第１側に配置されており、前記レリーズ部材の突起部が貫通する孔を有している、
    請求項１から５のいずれかに記載のモータサイクル用クラッチ装置。     The second output member is disposed on the first side in the axial direction of the first output member,
    The first output member is disposed on the second side in the axial direction of the second output member and on the first side of the release member, and has a hole through which the projection of the release member passes.
    The motorcycle clutch device according to any one of claims 1 to 5.
  7. 　前記レリーズ部材の複数の突起部は中心部に軸方向に延びるねじ孔を有し、
    　前記第２出力部材の軸方向の前記第１側から前記レリーズ部材のねじ孔に螺合して前記第２出力部材と前記レリーズ部材とを固定する複数のねじ部材をさらに備えた、
    請求項６に記載のモータサイクル用クラッチ装置。     The plurality of protrusions of the release member have a screw hole extending in the axial direction at the center,
    A plurality of screw members that are screwed into the screw holes of the release member from the first side in the axial direction of the second output member to fix the second output member and the release member;
    The motorcycle clutch device according to claim 6.
  8. 　前記付勢部材は、前記レリーズ部材の突起部が内周部を貫通するように配置されたコイルスプリングであり、
    　前記コイルスプリングは、軸方向の第１側の端部が前記第１出力部材に支持されるとともに、軸方向の第２側の端部が前記レリーズ部材に支持され、前記第１出力部材を前記第１側に付勢するとともに、前記第２出力部材を前記第２側に付勢する、
    請求項１から７のいずれかに記載のモータサイクル用クラッチ装置。     The urging member is a coil spring disposed so that the protrusion of the release member penetrates the inner periphery,
    The coil spring has an axial first end supported by the first output member, an axial second end supported by the release member, and the first output member Urging to the first side and urging the second output member to the second side;
    The motorcycle clutch device according to any one of claims 1 to 7.
PCT/JP2017/031765 2016-09-30 2017-09-04 Motorcycle clutch device WO2018061639A1 (en)

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JP2016194187A JP2018054093A (en) 2016-09-30 2016-09-30 Clutch device for motor cycle
JP2016-194187 2016-09-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110117A (en) * 1984-06-22 1986-01-17 Iseki & Co Ltd Cone type double step clutch
JP2011153655A (en) * 2010-01-27 2011-08-11 F C C:Kk Power transmission device
JP2013185675A (en) * 2012-03-09 2013-09-19 Exedy Corp Clutch device for motor cycle
JP2014224580A (en) * 2013-05-17 2014-12-04 株式会社エクセディ Clutch device for motor cycle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632542A (en) * 1947-01-31 1953-03-24 Hendrickson Glover Friction clutch mechanism
NL187538C (en) * 1981-04-24 1991-11-01 Graaf M H Mach Tech Handel FRICTION COUPLING.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110117A (en) * 1984-06-22 1986-01-17 Iseki & Co Ltd Cone type double step clutch
JP2011153655A (en) * 2010-01-27 2011-08-11 F C C:Kk Power transmission device
JP2013185675A (en) * 2012-03-09 2013-09-19 Exedy Corp Clutch device for motor cycle
JP2014224580A (en) * 2013-05-17 2014-12-04 株式会社エクセディ Clutch device for motor cycle

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