WO2009093529A1 - モータサイクル用クラッチ装置 - Google Patents
モータサイクル用クラッチ装置 Download PDFInfo
- Publication number
- WO2009093529A1 WO2009093529A1 PCT/JP2009/050542 JP2009050542W WO2009093529A1 WO 2009093529 A1 WO2009093529 A1 WO 2009093529A1 JP 2009050542 W JP2009050542 W JP 2009050542W WO 2009093529 A1 WO2009093529 A1 WO 2009093529A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clutch
- rotating body
- clutch device
- spring
- axial direction
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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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
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
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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
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
- F16D13/54—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
Definitions
- the present invention relates to a clutch device, and more particularly to a clutch device used in a motorcycle.
- a clutch device is used to transmit or cut power from the engine to the transmission.
- the clutch device includes a clutch housing, an output side rotating body, a clutch portion, a pressure plate, and a release mechanism.
- the clutch housing is connected to the crankshaft of the engine.
- the output side rotator is connected to the input shaft of the transmission.
- the clutch portion transmits or interrupts power from the clutch housing to the output side rotating body.
- the pressure plate presses the clutch portion.
- the release mechanism releases the pressing force to the clutch part of the pressure plate.
- the clutch portion has a plurality of first clutch plates supported by the clutch housing and a plurality of second clutch plates supported by the output side rotating body. The first and second clutch plates are alternately arranged.
- this clutch device when the clutch portion is pressed by the pressure plate, power is transmitted from the clutch housing to the output side rotating body via the clutch portion.
- the state of the clutch device is switched from the power transmission state to the power cut-off state, the pressing force to the clutch portion of the pressure plate is released by the release mechanism.
- the pressing force to the clutch portion of the pressure plate is released, power is not transmitted from the clutch housing to the output side rotating body via the clutch portion.
- the pressure plate In the power transmission state, the pressure plate is pressed against the clutch portion by the diaphragm spring, and the plurality of clutch plates of the clutch portion are pressed against each other.
- the state of the clutch device is switched from the power transmission state to the power cutoff state. Specifically, when the operator holds the clutch lever, the release member moves in the axial direction. When the release member moves in the axial direction, the pressing force of the diaphragm spring to the pressure plate is released, and the power transmission between the first and second clutch plates is interrupted.
- the diaphragm spring is supported by the output side rotating body via a pivot member. Specifically, the diaphragm spring is held between the pivot member and the output side rotating body. The diaphragm spring presses the pressure plate with the contact point between the diaphragm spring and the pivot member as a fulcrum.
- An object of the present invention is to provide a clutch device that can realize a smooth release operation.
- the motorcycle clutch device is a clutch device that transmits power from an input side member to an output side member, and interrupts power transmission by operating a release mechanism.
- the clutch device includes a clutch housing, a rotating body, a clutch portion, a pressure member, a first elastic member, and a release member.
- the clutch housing is connected to one of the input side member and the output side member.
- the rotating body is provided inside the clutch housing and is connected to the other of the input side member and the output side member.
- the clutch portion has at least one plate member for transmitting and interrupting power between the clutch housing and the rotating body.
- the pressure member presses the plate member.
- the first elastic member is supported in the axial direction by the rotating body and has a spring portion and a plurality of lever portions.
- the spring portion presses the pressure member radially inward from the support position by the rotating body.
- the plurality of lever portions extend radially inward from the spring portion and are arranged side by side in the rotational direction.
- the release member is a member that is driven to the rotating body side when the release mechanism is operated, and can be brought into contact with the lever portion.
- the spring portion presses the pressure member radially inward from the support position by the rotating body. That is, the spring portion is not sandwiched between the rotating body and the pressure member in the axial direction. For this reason, when the spring portion is elastically deformed, no excessive hysteresis is generated in the support portion of the spring portion, and a smooth release operation can be realized.
- the longitudinal cross-sectional view of the clutch apparatus which concerns on one Embodiment of this invention.
- the front view of a clutch apparatus Sectional drawing of the clutch apparatus of a power cutoff state.
- the longitudinal cross-sectional view of the clutch apparatus which concerns on other embodiment.
- the longitudinal cross-sectional view of the clutch apparatus which concerns on other embodiment.
- FIG. 1 is an overall cross-sectional view of the clutch device 100 in a power transmission state.
- FIG. 2 is a view of the clutch device 100 as viewed from the outside in the axial direction. “Axial direction outside” means the right direction in FIG. 1, and “Axial direction inside” means the left direction in FIG.
- the clutch device 100 shown in FIGS. 1 and 2 is a device used for a motorcycle.
- the clutch device 100 is a device for transmitting power from the crankshaft of the engine to the transmission and interrupting power transmission by a release operation.
- the state of the clutch device 100 changes from the power transmission state (clutch on) to the power cutoff state (clutch off) by moving the release member 6 inward in the axial direction. That is, the clutch device 100 is a so-called push type clutch device.
- a release mechanism (not shown) for moving the release member 6 in the axial direction is disposed outside the release member 6 in the axial direction.
- the clutch device 100 includes a clutch housing 1, an output side rotating body 2 (an example of a rotating body), a clutch portion 3, a pressure plate 4 (an example of a pressure member), and a diaphragm.
- a spring 5 an example of a first elastic member
- a release member 6 are provided.
- the clutch housing 1 has a disc part 10 and a cylindrical part 11.
- the cylindrical portion 11 extends outward in the axial direction from the outer peripheral end of the disc portion 10.
- An input gear 13 is attached to the disc portion 10 with bolts 14 via a plurality of annular rubber members 12.
- the input gear 13 meshes with a drive gear (not shown) fixed to the crankshaft on the engine side.
- the rubber member 12 is a member provided to absorb vibration from the engine. Instead of the rubber member 12, for example, an elastic member such as a coil spring may be used.
- the cylindrical portion 11 is formed with a plurality of recesses 15 that are recessed inward in the axial direction.
- the output side rotating body 2 is disposed on the inner peripheral side of the clutch housing 1.
- the output-side rotating body 2 includes a cylindrical output-side cylindrical portion 21 and a disk-shaped output-side disc portion 22.
- the output-side cylindrical portion 21 is coaxial with the input gear 13 and is disposed outside the input gear 13 in the axial direction.
- a spline 211 is formed on the inner peripheral surface of the output side cylindrical portion 21.
- the spline 211 meshes with an input shaft (not shown) of the transmission.
- the output side cylindrical portion 21 can rotate with respect to the clutch housing 1, but the axial position with respect to the clutch housing 1 is fixed.
- the output side disc portion 22 is an annular portion extending from the output side cylindrical portion 21 toward the radially outer side.
- the output side disk part 22 has a flange part 221 provided on the outside in the radial direction and an annular projecting part 222.
- the flange portion 221 can contact the clutch portion 3.
- the protrusion 222 protrudes inward in the axial direction, and has a spline 222a on the outer surface.
- the output-side disk portion 22 has six through holes 223 (an example of holes) that are arranged at equal intervals in the rotation direction and through which the pressing protrusions 42 pass.
- the output side disk portion 22 is provided with a support protrusion 224 and six claw portions 225 that protrude outward in the axial direction at the radially outer end.
- the support protrusion 224 is an annular portion, and supports the diaphragm spring 5 in the axial direction. Specifically, the support protrusion 224 can contact the diaphragm spring 5 from the inner side in the axial direction.
- the support protrusion 224 is disposed at substantially the same radial position as the radial center of the friction surface of the clutch portion 3 (the first clutch plate 31 and the second clutch plate 32).
- the claw portion 225 is a protrusion for restricting the movement of the diaphragm spring 5 in the circumferential direction, and is disposed on the outer side in the radial direction than the support protrusion 224.
- the claw portions 225 are arranged at equal intervals in the circumferential direction.
- the clutch portion 3 is a portion for transmitting and interrupting power between the clutch housing 1 and the output side rotating body 2.
- the clutch unit 3 includes two first clutch plates 31 (plate members) and one second clutch plate 32 (plate member).
- the first and second clutch plates 31 and 32 are annular members and are alternately arranged in the axial direction.
- a plurality of engagement protrusions 311 are formed on the outer periphery of the first clutch plate 31 so as to protrude radially outward.
- the engaging protrusion 311 meshes with a recess 15 formed in the cylindrical portion 11 of the clutch housing 1.
- the first clutch plate 31 has friction facings disposed on both sides in the axial direction.
- a spline 321 is formed on the inner periphery of the second clutch plate 32.
- the spline 321 meshes with the spline 222a of the output side rotating body 2.
- the second clutch plate 32 Similar to the first clutch plate 31, the second clutch plate 32 has friction facings disposed on both sides in the axial direction.
- the pressure plate 4 can contact the clutch part 3 from the side opposite to the side where the release member 6 of the clutch part 3 is disposed. That is, the pressure plate 4 is a member that can press the first clutch plate 31 of the clutch portion 3. Further, the pressure plate 4 can actuate the clutch portion 3 by pressing the first clutch plate 31 so that power can be transmitted between the clutch housing 1 and the output side rotating body 2. Further, the pressure plate 4 is disposed on the inner side in the axial direction of the output side rotating body 2.
- the pressure plate 4 includes a disk-shaped pressing disk portion 41, six pressing protrusion portions 42 protruding outward in the axial direction, a support ring 43 (an example of a contact portion) that can contact the diaphragm spring 5, have.
- the pressing disc portion 41 is disposed on the radially outer side of the output side cylindrical portion 21 and can be frictionally engaged with the first clutch plate 31 of the clutch portion 3.
- the pressing disk portion 41 is provided with a plurality of holes 412 through which lubricating oil can pass.
- An inner spline 413 is formed on the radially outer inner surface of the pressing disc portion 41.
- the inner spline 413 meshes with a spline 222 a formed on the outer peripheral portion of the protruding portion 222.
- the pressing protrusion 42 is disposed on the radially inner side of the pressing disk portion 41 and protrudes from the pressing disk portion 41 toward the outer side in the axial direction.
- the six pressing protrusions 42 are arranged at equal intervals in the circumferential direction.
- the pressing protrusion 42 is inserted into the through hole 223.
- the support ring 43 is an annular member that is pressed outward in the axial direction by the diaphragm spring 5.
- the support ring 43 is fixed to the tip of the pressing protrusion 42 with a bolt 431.
- the support ring 43 is formed with a protruding portion 432 that protrudes inward in the axial direction from the outer peripheral end portion. As shown in FIG. 2, the support ring 43 has a plurality of recesses 433 that are recessed from the inner periphery toward the radially outer side.
- the diaphragm spring 5 is a member for pressing the pressure plate 4 and is disposed so as to face the output side rotating body 2 in the axial direction.
- the diaphragm spring 5 has a spring portion 51 and a plurality of lever portions 52.
- the spring portion 51 is an annular portion for pressing the pressure plate 4 outward in the axial direction.
- the spring part 51 is in contact with the surface of the flange part 221 opposite to the clutch part 3.
- the spring portion 51 further has an insertion protrusion 53 that can be inserted between the two claw portions 225 on the outer periphery.
- the plurality of insertion protrusions 53 are arranged at equal intervals.
- the radially outer portion of the spring portion 51 is in contact with the support protrusion 224, and the radially inner portion of the spring portion 51 is in contact with the protruding portion 432. Since the output-side rotator 2 is meshed with the input shaft of the transmission, the movement in the axial direction is restricted, and the movement of the spring portion 51 in the radially outward direction is restricted.
- the lever part 52 is a part for releasing the pressing of the spring part 51 to the output side rotating body 2.
- the lever portion 52 is formed to extend radially inward from the inner periphery of the spring portion 51. Further, the lever portion 52 is disposed between two adjacent pressing protrusions 42.
- the lever portion 52 is in contact with the release member 6 at the radially inner end.
- the lever portion 52 is formed so that the width gradually decreases toward the radially inner side.
- the portion in contact with the support protrusion 224 of the spring portion 51 serves as a fulcrum in the lever principle on the support ring 43 of the spring portion 51.
- the contacted portion functions as an action point in the lever principle
- the portion in contact with the release member 6 of the lever portion 52 functions as a force point in the lever principle.
- the release member 6 is an annular member for switching between the power transmission state and the power cut-off state of the clutch portion 3, and is disposed on the outer side in the axial direction of the diaphragm spring 5.
- the release member 6 has a release protrusion 61 that protrudes inward in the axial direction on the inner surface in the axial direction.
- the release protrusion 61 is in contact with the radially inner end of the lever 52 of the diaphragm spring 5.
- the release member 6 has a plurality of release protrusions 63 that protrude radially outward from the outer periphery.
- the release protrusion 63 is inserted into the recess 433 of the support ring 43, and the release protrusion 63 is inserted into the recess 433, whereby the release member 6 moves in the circumferential direction (relative rotation between the release member 6 and the support ring 43). It is regulated.
- the release member 6 moves inward in the axial direction by the operation of a release mechanism (not shown) when the power transmission state is switched to the power cutoff state.
- FIG. 3 is a cross-sectional view of the clutch device 100 in a power cut-off state.
- the pressure plate 4 in the power transmission state, the pressure plate 4 is pressed outward in the axial direction through the support ring 43 by the radial inside of the spring portion 51 of the diaphragm spring 5. As a result, the clutch portion 3 is sandwiched between the pressing disc portion 41 of the pressure plate 4 and the flange portion 221 of the output side rotating body 2. In this state, the pressure plate 4, the two first clutch plates 31 and the second clutch plate 32 are frictionally engaged with each other.
- the release member 6 When switching the power transmission state to the power cut-off state, the release member 6 is moved inward in the axial direction as shown in FIG.
- the tip of the lever portion 52 of the diaphragm spring 5 moves inward in the axial direction.
- the pressing force of the spring portion 51 on the support ring 43 is released, and the pressure plate 4 can move inward in the axial direction. Since the spring portion 51 is not sandwiched between the support protrusion 224 and the support ring 43 of the pressure plate 4 in the axial direction, the change of the posture of the diaphragm spring 5 becomes smooth, and the release operation becomes smooth.
- the pressure plate 4 When the pressure plate 4 is movable inward in the axial direction, the pressure plate 4, the two first clutch plates 31, the second clutch plate 32, and the output side rotating body 2 can be relatively rotated. As a result, power transmission from the engine to the transmission is released.
- the outer peripheral portion of the spring portion 51 of the diaphragm spring 5 is supported in the axial direction by the support protrusion 224 of the output side rotating body 2, and the spring portion 51 is radially inward from the support position of the support protrusion 224. Presses the pressure plate 4 (more specifically, the support ring 43). That is, the spring portion 51 is not sandwiched between the support protrusion 224 and the support ring 43 of the pressure plate 4 in the axial direction. For this reason, when the spring part 51 elastically deforms, an excess hysteresis (resistance) does not occur in the part where the spring part 51 is supported, and a smooth release operation can be realized.
- the support protrusion 224 is disposed at substantially the same radial position as the radial center of the friction surface of the first clutch plate 31 and the second clutch plate 32, so that the transmission is transmitted from the diaphragm spring 5 to the support protrusion 224. And the pressing force transmitted from the pressure plate 4 to the flange portion 221 via the clutch portion 3 are more easily offset.
- the radial position of the support protrusion 224 is preferably completely the same as the radial center of the friction surface, but within a range in which the force transmitted from the diaphragm spring 5 and the pressing force of the pressure plate 4 are offset. And may be displaced from the radial center of the friction surface.
- an elastic member 200 (an example of a second elastic member) may be disposed between the diaphragm spring 5 and the support ring 43.
- the elastic member 200 is a member for generating drag torque when the power is cut off, and is, for example, a plurality of resin members that are elastically deformable in the axial direction.
- the elastic force generated by the elastic member 200 is smaller than the pressing force of the diaphragm spring 5.
- the elastic member 200 is positioned in the radial direction by the protruding portion 432 of the support ring 43 and is disposed in a state of being compressed in the axial direction between the spring portion 51 and the support ring 43 in a power transmission state.
- the elastic member 200 is compressed between the support ring 43 and the diaphragm spring 5 in the axial direction even when the lever 52 is pushed inward in the axial direction by the release member 6 (power cutoff state). For this reason, the pressure plate 4 is pressed outward in the axial direction with a force smaller than the pressing force of the diaphragm spring 5 in the power cut-off state.
- the pressing force of the elastic member 200 when the power is shut off is set so that the clutch portion 3 generates a drag torque that does not stop the engine when the transmission gear is moved from the neutral position to the meshing position.
- the gear of the transmission rotates at a low speed when the power is cut off, and switching from the neutral to the first speed becomes smooth even when there is no sync mechanism.
- the elastic member 200 may be a member that can be elastically deformed, and may be, for example, a coil spring or a cone spring.
- the return spring 300 may be further provided in the clutch device 100.
- the return spring 300 is a member for pressing the pressure plate 4 toward the side away from the first clutch plate 31 with a load smaller than the pressing force of the diaphragm spring 5, and is a coil spring, for example.
- the return spring 300 is disposed between the output side rotating body 2 and the pressure plate 4. More specifically, a plurality of first projecting portions 29 are formed on the inner side in the axial direction of the output side disk portion 22 of the output side rotating body 2, and the second projecting portion 49 is formed on the outer surface in the axial direction of the pressure plate 4. Is provided so as to face the first protrusion 29. A first end of the return spring 300 is supported by the first protrusion 29, and a second end is supported by the second protrusion 49.
- the return spring 300 since the output side rotating body 2 and the pressure plate 4 are pressed away by the return spring 300, the pressure plate 4 is separated from the first clutch plate 31 when the power transmission state is switched to the power cutoff state. It becomes easy. That is, the return spring 300 is effective when it is desired to smoothly switch to the power cut-off state.
- the support ring 43 is a member different from the pressure plate 4, the pressure plate 4 and the support ring 43 may be formed integrally. Further, although the support ring 43 is in contact with the spring portion 51 of the diaphragm spring 5, the support ring 43 may be in contact with the lever portion 52.
- the clutch device according to the present invention can smoothly perform the release operation, it is useful in the field of motorcycles that require a smooth release operation.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
2 出力側回転体(回転体の一例)
3 クラッチ部
4 プレッシャプレート(プレッシャ部材の一例)
5 ダイヤフラムスプリング(第1弾性部材の一例)
6 レリーズ部材
13 入力ギア(入力側部材の一例)
42 押圧突出部(突出部の一例)
51 スプリング部
52 レバー部
100 クラッチ装置
200 ドラグトルク用弾性部材(第2弾性部材の一例)
223 貫通孔(孔の一例)
224 支持突起
300 リターンスプリング(リターン部材の一例)
図1および図2を用いて、クラッチ装置100の全体構成について説明する。図1は動力伝達状態におけるクラッチ装置100の全体断面図である。図2はクラッチ装置100を軸方向外側から見た図である。「軸方向外側」とは図1における右方向を意味しており、「軸方向内側」とは図1における左方向を意味している。
クラッチハウジング1は、円板部10と、筒状部11と、を有している。筒状部11は、円板部10の外周端部から軸方向外側に延びている。円板部10には複数の環状のゴム部材12を介して入力ギア13がボルト14により装着されている。この入力ギア13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)に噛み合っている。なお、ゴム部材12はエンジンからの振動を吸収するために設けられた部材である。ゴム部材12の代わりに、例えばコイルスプリングのような弾性部材を用いても良い。筒状部11には、軸方向内側に凹む複数の凹部15が形成されている。
出力側回転体2は、クラッチハウジング1の内周側に配置されている。出力側回転体2は、円筒状の出力側円筒部21と、円板状の出力側円板部22と、を有している。
爪部225は、ダイヤフラムスプリング5の周方向移動を規制するための突起であり、支持突起224よりも径方向外側に配置されている。爪部225は周方向に等間隔に並べて配置されている。
クラッチ部3は、クラッチハウジング1と出力側回転体2との間で動力の伝達および遮断を行うための部分である。また、クラッチ部3は、2枚の第1クラッチプレート31(プレート部材)と、1枚の第2クラッチプレート32(プレート部材)と、を有している。第1および第2クラッチプレート31および32は、環状の部材であり、軸方向に交互に配置されている。第1クラッチプレート31の外周部には径方向外側に突出する複数の係合突起311が形成されている。この係合突起311がクラッチハウジング1の筒状部11に形成された凹部15に噛み合っている。第1クラッチプレート31は軸方向両側に配置された摩擦フェーシングを有している。第2クラッチプレート32の内周部にはスプライン321が形成されている。このスプライン321が出力側回転体2のスプライン222aと噛み合っている。第1クラッチプレート31と同様に、第2クラッチプレート32は軸方向両側に配置された摩擦フェーシングを有している。
プレッシャプレート4は、クラッチ部3のレリーズ部材6が配置されている側の反対側からクラッチ部3に接触可能である。すなわち、プレッシャプレート4はクラッチ部3の第1クラッチプレート31を押圧可能な部材である。また、プレッシャプレート4は、第1クラッチプレート31を押圧することで、クラッチハウジング1と出力側回転体2との間で動力伝達が可能となるようにクラッチ部3を作動させることができる。さらに、プレッシャプレート4は、出力側回転体2の軸方向内側に配置されている。プレッシャプレート4は、円板状の押圧円板部41と、軸方向外側に向かって突出する6つの押圧突出部42と、ダイヤフラムスプリング5に接触可能な支持リング43(接触部の一例)と、を有している。
ダイヤフラムスプリング5は、プレッシャプレート4を押圧するための部材であり、出力側回転体2と軸方向に対向するように配置されている。ダイヤフラムスプリング5は、スプリング部51と、複数のレバー部52とを有している。
レリーズ部材6は、クラッチ部3の動力伝達状態と動力遮断状態とを切り替えるための環状の部材であり、ダイヤフラムスプリング5の軸方向外側に配置されている。レリーズ部材6には軸方向内側の面に軸方向内側に向かって突出するレリーズ突出部61が形成されている。このレリーズ突出部61はダイヤフラムスプリング5のレバー部52の径方向内側端部と当接している。レリーズ部材6は外周から径方向外側に向かって突出する複数のレリーズ突起63を有している。このレリーズ突起63は支持リング43の凹部433に挿入されており、レリーズ突起63が凹部433に挿入されることでレリーズ部材6の周方向移動(レリーズ部材6と支持リング43との相対回転)が規制されている。レリーズ部材6は、動力伝達状態を動力遮断状態に切り替える際にレリーズ機構(図示せず)の作動により軸方向内側に移動する。
次に、図1~図3を用いてクラッチ装置100の動作について説明する。図3は動力遮断状態におけるクラッチ装置100の断面図である。
以上に説明したクラッチ装置100の特徴を以下にまとめる。
このクラッチ装置100では、出力側回転体2の支持突起224によりダイヤフラムスプリング5のスプリング部51の外周部が軸方向に支持されており、支持突起224の支持位置よりも径方向内側でスプリング部51がプレッシャプレート4(より詳細には、支持リング43)を押圧している。つまり、スプリング部51は支持突起224とプレッシャプレート4の支持リング43とにより軸方向に挟み込まれていない。このため、スプリング部51が弾性変形する際にスプリング部51が支持されている部分で余分なヒステリシス(抵抗)が発生せず、円滑なレリーズ動作を実現することができる。
このクラッチ装置100では、支持突起224がフランジ部221のクラッチ部3と反対側に配置されているため、ダイヤフラムスプリング5から支持突起224に伝達される力と、プレッシャプレート4からクラッチ部3を介してフランジ部221に伝達される押付力と、が相殺されやすくなる。これにより、出力側回転体2の剛性を高める必要がなくなり、出力側回転体2の軸方向寸法を短縮することができる。つまり、クラッチ装置100の小型化が可能となる。
このクラッチ装置100では、第1クラッチプレート31および第2クラッチプレート32の摩擦面の径方向中央と概ね同じ径方向位置に支持突起224が配置されているため、ダイヤフラムスプリング5から支持突起224に伝達される力と、プレッシャプレート4からクラッチ部3を介してフランジ部221に伝達される押付力と、がより相殺されやすくなる。
本発明の具体的構成は、前述の実施形態に限定されず、本発明の趣旨を逸脱しない範囲において種々の変更および修正が可能である。
図4に示すように、ダイヤフラムスプリング5と支持リング43との間に弾性部材200(第2弾性部材の一例)を配置しても良い。この弾性部材200は、動力遮断時にドラグトルクを発生させるための部材であり、例えば、軸方向に弾性変形可能な複数の樹脂部材である。弾性部材200により発生する弾性力は、ダイヤフラムスプリング5の押圧力よりも小さい。弾性部材200は、支持リング43の突出部432により径方向に位置決めされており、動力伝達状態でスプリング部51と支持リング43との間に予め軸方向に圧縮された状態で配置されている。
図5に示すように、クラッチ装置100にリターンスプリング300をさらに設けても良い。このリターンスプリング300は、ダイヤフラムスプリング5の押圧力よりも小さい荷重でプレッシャプレート4を第1クラッチプレート31から離す側に押圧するための部材であり、例えばコイルスプリングである。リターンスプリング300は、出力側回転体2とプレッシャプレート4との間に配置されている。より詳細には、出力側回転体2の出力側円板部22の軸方向内側に複数の第1突出部29が形成されており、プレッシャプレート4の軸方向外側の面に第2突出部49が第1突出部29に対向するように設けられている。リターンスプリング300の第1端部が第1突出部29に支持されており、第2端部が第2突出部49に支持されている。
さらに、上記実施形態では、支持リング43がプレッシャプレート4とは別の部材であるが、プレッシャプレート4と支持リング43とが一体で形成されていても良い。また、支持リング43がダイヤフラムスプリング5のスプリング部51と当接しているが、レバー部52に当接する構成であっても良い。
Claims (7)
- 入力側部材から出力側部材に動力を伝達し、レリーズ機構を作動させること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、
前記入力側部材および出力側部材の一方に連結されたクラッチハウジングと、
前記クラッチハウジングの内側に設けられ、前記入力側部材および前記出力側部材の他方に連結された回転体と、
前記クラッチハウジングと前記回転体との間で動力伝達および遮断を行うための少なくとも1枚のプレート部材を有するクラッチ部と、
前記プレート部材を押圧するためのプレッシャ部材と、
前記回転体により軸方向に支持され前記回転体による支持位置よりも径方向内側で前記プレッシャ部材を押圧するスプリング部と、前記スプリング部から径方向内側に延び回転方向に並んで配置された複数のレバー部と、を有する第1弾性部材と、
前記レリーズ機構の作動時に前記回転体側に駆動される部材であって前記レバー部と当接可能なレリーズ部材と、
を備えたモータサイクル用クラッチ装置。 - 前記回転体は、前記クラッチ部が押し付けられるフランジ部と、前記フランジ部の前記クラッチ部と反対側に配置され前記スプリング部と当接する支持突起と、を有している、
請求項1に記載のモータサイクル用クラッチ装置。 - 前記支持突起は、前記プレート部材の摩擦面の径方向中央と概ね同じ径方向位置に配置されている、
請求項2に記載のモータサイクル用クラッチ装置。 - 前記第1弾性部材の押圧力より小さい力で前記プレッシャ部材を押圧可能な第2弾性部材をさらに備えた、
請求項1から3のいずれかに記載のモータサイクル用クラッチ装置。 - 前記回転体は、軸方向に貫通した孔を有しており、
前記プレッシャ部材は、軸方向に突出し前記孔を通る突出部と、前記突出部の先端に配置された接触部と、を有しており、
前記第2弾性部材は、前記接触部と前記第1弾性部材との間に配置されている、
請求項4に記載のモータサイクル用クラッチ装置。 - 前記回転体と前記プレッシャ部材との間に配置され、前記第1弾性部材の押圧力より小さい力で前記プレッシャ部材を前記クラッチ部から離す側に押圧するリターン部材をさらに備えた、
請求項1から3のいずれかに記載のモータサイクル用クラッチ装置。 - 前記プレッシャ部材は、前記クラッチ部の前記レリーズ機構が配置されている側の反対側から前記クラッチ部に接触可能である、
請求項1から6のいずれかに記載のモータサイクル用クラッチ装置。
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JP2016094957A (ja) * | 2014-11-12 | 2016-05-26 | 株式会社クボタ | 作業車用の伝動装置 |
WO2021233493A1 (de) * | 2020-05-20 | 2021-11-25 | Schaeffler Technologies AG & Co. KG | Kupplungsanordnung |
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JP6892758B2 (ja) * | 2016-12-20 | 2021-07-07 | 株式会社エクセディ | 動力伝達装置 |
JP7429485B2 (ja) * | 2019-10-01 | 2024-02-08 | 株式会社エフ・シー・シー | クラッチ装置 |
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JP2000027890A (ja) * | 1998-05-14 | 2000-01-25 | Sachs Race Eng Gmbh | 多板クラッチ |
JP2005249083A (ja) * | 2004-03-04 | 2005-09-15 | Honda Motor Co Ltd | 多板クラッチ構造 |
JP2006170400A (ja) * | 2004-12-20 | 2006-06-29 | Exedy Corp | モータサイクル用クラッチ装置 |
JP2006316869A (ja) * | 2005-05-12 | 2006-11-24 | Exedy Corp | モータサイクル用クラッチ装置 |
JP2006316868A (ja) * | 2005-05-12 | 2006-11-24 | Exedy Corp | モータサイクル用クラッチ装置 |
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DE102006037023A1 (de) * | 2006-03-07 | 2007-09-13 | Zf Friedrichshafen Ag | Reibungskupplung |
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JPS59200814A (ja) * | 1983-04-30 | 1984-11-14 | Yamaha Motor Co Ltd | 車両の手動操作式クラツチ装置 |
JP2000027890A (ja) * | 1998-05-14 | 2000-01-25 | Sachs Race Eng Gmbh | 多板クラッチ |
JP2005249083A (ja) * | 2004-03-04 | 2005-09-15 | Honda Motor Co Ltd | 多板クラッチ構造 |
JP2006170400A (ja) * | 2004-12-20 | 2006-06-29 | Exedy Corp | モータサイクル用クラッチ装置 |
JP2006316869A (ja) * | 2005-05-12 | 2006-11-24 | Exedy Corp | モータサイクル用クラッチ装置 |
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JP2016094957A (ja) * | 2014-11-12 | 2016-05-26 | 株式会社クボタ | 作業車用の伝動装置 |
WO2021233493A1 (de) * | 2020-05-20 | 2021-11-25 | Schaeffler Technologies AG & Co. KG | Kupplungsanordnung |
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CN101910666A (zh) | 2010-12-08 |
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