CN1799928A - Operating assist device for vehicle clutch - Google Patents

Abstract

To provide a clutch operation auxiliary device improving operability without producing a sense of incongruity in operation of an operation element.The clutch operation device is provided with a friction clutch including a clutch spring, a clutch lever connected to the friction clutch via clutch wires 43a, 43b and artificially operated against the clutch spring, and an operation auxiliary device. The operation auxiliary device is provided with an assist mechanism 52 including an auxiliary spring 82 energizing the clutch wires 43a, 43b in a direction disengaging the friction clutch during a period until the clutch lever reaches disengagement position where disengagement of the friction clutch completes from a disengagement start position where the clutch lever receives reaction force of the clutch spring. The assist mechanism 52 keeps energizing force of the auxiliary spring 82 acting on the clutch wires 43a, 43b in a fixed range when the clutch lever is operated from a neutral position between the disengagement start position and the disengagement position toward the disengagement position.

Description

Clutch operating work-saving device and the vehicle that is equipped with this device

Technical field

The present invention relates to the clutch operating assist device, the moment of torsion that it can reduce actuating friction clutch disconnection friction clutch transmits needed power, and the vehicle that is equipped with this clutch operating assist device.

Background technology

For example, the driving engine of motor bike is equipped with friction clutch, and it can connect and disconnect the moment of torsion transmission of bent axle to change speed gear box.This friction clutch has friction lining and the clutch segment that is arranged alternately each other.This friction lining utilizes clutch spring to be pressed against on the clutch segment consistently, and keep can transfer torque state.

This friction clutch has clutch release mechanism.This clutch release mechanism is connected on the clutch lever through clutch cable, and this clutch release mechanism is used to discharge by clutch spring and acts on pressure on the friction lining.When the rider firmly grasped clutch lever, the propelling thrust that friction lining overcomes clutch spring separated with clutch segment, so that the moment of torsion transmission from the friction lining to the clutch segment is disconnected.

In the friction clutch that uses in high-power, rev-happy engine, the installed load of expectation clutch spring is arranged to bigger value, to increase torque rating.Yet, because clutch lever is by people's manual manipulation, so when the installed load of clutch spring increased, the load of operated clutch bar also increased.

As the means that address the above problem, known a kind of clutch operating device, the servomechanism that wherein can reduce the needed power of operated clutch bar is contained in the clutch cable institute bonded assembly clutch release mechanism (referring to patent document 1, for example).

Conventional servomechanism has the arm that can rotate with the catch bar of clutch release mechanism, and is arranged on the end of arm and the spring installation between the driving engine.This spring installation has spring perch and compression disc spring, and this spring perch can directly upwards launch and contraction at it, and this compression disc spring is used for promoting spring perch on the direction that spring perch launches.This spring perch has first terminal and second end, and this first end is pivotally connected on the end of arm, and this second end is pivotally connected to from the support of driving engine extension.

In conventional servomechanism, when clutch lever operation and its free clearance corresponding apart from the time, the first terminal and second terminal in-line alignment of the center of turn of arm and spring perch.Therefore, the propelling thrust of compression disc spring acts on the direction of extrusion arm, does not play the effect of the power (moment) that makes the arm rotation.

Yet when clutch lever turned over free clearance, the binding site between first end of the end of arm and spring perch departed from the straight line of second end of the center of turn of connecting arm and spring perch.Therefore, the propelling thrust of compression disc spring acts on and makes on the direction that arm rotates, and forces arm to rotate breaking away from the direction that cooperates with friction clutch.As a result, the propelling thrust of compression disc spring is increased to the power that is used for the operated clutch bar, and has reduced the operated clutch bar to cooperate needed power with the friction clutch disengaging.

[patent document 1] JP-A-Hei7-132872

[summary of the invention]

[the problem to be solved in the present invention]

According to disclosed clutch operating device in the patent document 1, when clutch lever turned to the disengaging cooperation starting position of free clearance end, the propelling thrust of clutch spring was applied on the clutch lever.By after break away from cooperating the place, starting position, the compression disc spring of servomechanism expands at clutch lever, is breaking away from propelling thrust on the direction that cooperates to cancel clutch spring synchronously with the operation of clutch lever with friction clutch.

Yet in this clutch operating device, through after breaking away from the cooperation starting position, the compression disc spring of servomechanism can free expansion at clutch lever.Therefore, it is not controlled to be applied to the propelling thrust of the compression disc spring on the catch bar from arm.Just, because the end of spring perch is directly connected on the end of arm, and spring installation rotates on the direction identical with arm, so be applied to the big or small uncontrollable of propelling thrust on the catch bar.

So, can not prevent that clutch lever along with lightening suddenly near the disengaging cooperation position, breaks away from the cooperation position place at this, friction clutch breaks away from and cooperates, and clutch lever is breaking away from the direction that cooperates mobile with friction clutch.Therefore, the operation sense of clutch lever is nature not, and the space of the operability that improves clutch lever is still arranged.

When clutch lever is breaking away from the direction cooperate when mobile with friction clutch, the needed power of operated clutch bar is preferably less, is especially breaking away from preceding half period (the breaking away from half on the side that cooperates the starting position) that cooperates between starting position and the disengaging cooperation position.Just, preferably reduce the needed power of operated clutch bar in the starting stage that is called half-clutch device operation.Yet, adopting to change conventional clutch operating device, the F/s of operating at half-clutch device needs bigger power.Therefore, the space that also has the operating characteristic that improves clutch lever in this respect.

Therefore, the purpose of this invention is to provide a kind of clutch operating work-saving device and the vehicle that is equipped with this clutch operating work-saving device, adopt this clutch operating work-saving device, break away from the operation that cooperates at executive component and friction clutch and can not cause any sense of discomfort, and it can improve the operating characteristic of executive component.

[method of dealing with problems]

Clutch operating work-saving device of the present invention is contained in the clutch operating device, this clutch operating device has the friction clutch of band clutch spring, and executive component, this executive component is connected on the friction clutch through drive disk assembly, and but M/C overcomes the propelling thrust of clutch spring, to disconnect the moment of torsion transmission that friction clutch was applied, this clutch operating work-saving device comprises: secondary resilient members, when executive component is operated on the direction of disengaging friction clutch, on the direction that breaks away from friction clutch, promote drive disk assembly, and executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from, executive component is breaking away from the antagonistic force that cooperates place, starting position reception clutch spring, the disengaging of friction clutch is engaged in this disengaging cooperation position place and finishes the disengaging cooperation, wherein the propelling thrust that is applied on the drive disk assembly of assist spring remains in the fixed range, and executive component moves to the disengaging cooperation position from breaking away from the midway location that cooperates the starting position and break away between the cooperation position.

According to this clutch operating work-saving device, when executive component is breaking away from when operating on the direction cooperate with friction clutch, the propelling thrust of secondary resilient members is applied on the executive component.Therefore, can operate this executive component with less power.

In addition, though when executive component when breaking away from cooperation position, secondary resilient members is applied to propelling thrust on the drive disk assembly and also can increase and exceed fixed range, and can prevent that executive component from lightening suddenly near the position that breaks away from cooperation position.Therefore, the operation of executive component can not cause any sense of discomfort, and can obtain improved operating characteristic.

Another clutch operating work-saving device of the present invention is contained in the clutch operating device, this clutch operating device has the friction clutch of band clutch spring, be connected to the drive disk assembly on the friction clutch, and executive component, this executive component is connected on the drive disk assembly, and change the mated condition of friction clutch when propelling thrust when operation that overcomes clutch spring, this clutch operating work-saving device comprises: can with the synchronization-moving movable member of executive component; Rotatable member; Be used to apply propelling thrust so that the swung secondary resilient members that this rotatable member rotates; And cam mechanism, this cam mechanism is arranged between movable member and the rotatable member, the propelling thrust that is used for will being applied on the rotatable member passes to movable member, wherein, when executive component is breaking away from when operating on the direction cooperate with friction clutch, this secondary resilient members applies propelling thrust, to break away from mobile this movable member on the direction that cooperates with friction clutch, and executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from, executive component is breaking away from the antagonistic force that cooperates place, starting position reception clutch spring, and friction clutch is finished to break away from disengaging cooperation position place and cooperated.

According to this clutch operating work-saving device, rotatable member and cam mechanism are arranged on can be swung between secondary resilient members and the movable member.Because secondary resilient members can be swung, so can freely change the direction of propelling thrust.Therefore, although cam mechanism is arranged between secondary resilient members and the movable member, can always propelling thrust be applied on the suitable direction, and can reduce to be applied to the loss of the propelling thrust on the movable member.In addition, the wearing and tearing of parts in the clutch operating work-saving device can be reduced, and the service life and the reliability of clutch operating work-saving device can be improved.

Simultaneously, because cam mechanism is arranged between secondary resilient members and the movable member, so relation between the swing of secondary resilient members and movable member mobile can freely be set.Therefore, the modified characteristics that is applied to the propelling thrust on the movable member (in other words, when executive component is operated, the modified characteristics of propelling thrust) can arbitrarily be set.Therefore, by cooperate in the disengaging of friction clutch begun after, reduce the needed power of operated clutch bar at once, can further improve the operating characteristic of clutch lever.

[invention effect]

According to the present invention, can reduce executive component is operated, cooperate needed power to break away from, and nature and comfortable operation sense can be provided with friction clutch.

[accompanying drawing is briefly described]

Accompanying drawing 1 is the lateral plan of the described motor bike of one embodiment of the present of invention.

Accompanying drawing 2 is the cutaway views that are used for the friction clutch of embodiments of the invention.

Accompanying drawing 3 is lateral plans of the described operating assist device of first embodiment.

Accompanying drawing 4 is lateral plans of the operating assist device of first embodiment, and the state of servomechanism when clutch lever is positioned at home position has been described.

Accompanying drawing 5 is lateral plans that part is analysed and observe, and has illustrated when the clutch lever among first embodiment is positioned at home position, and connecting panel, spring installation and the position that compresses between the pin concern.

Accompanying drawing 6 is cutaway views of the described operating assist device of first embodiment.

Accompanying drawing 7 is transparents view of the described operating assist device of first embodiment.

Accompanying drawing 8 is transparents view of cover body among first embodiment, and wherein servomechanism has been contained in this cover body.

Accompanying drawing 9 is transparents view of cover body among first embodiment, and wherein servomechanism has been contained in this cover body.

Accompanying drawing 10 is transparents view of the operating assist device of first embodiment, and the state of servomechanism has been described when clutch lever is positioned at disengaging cooperation starting position.

Accompanying drawing 11 is lateral plans of analysing and observe of part, has illustrated when the clutch lever among first embodiment is in the position that breaks away from connecting panel, spring installation when cooperating the starting position and compress between the pin to concern.

Accompanying drawing 12 is lateral plans of the operating assist device of first embodiment, and the state of servomechanism has been described when clutch lever is in the disengaging cooperation position.

Accompanying drawing 13 is lateral plans that part is analysed and observe, and has illustrated when the clutch lever among first embodiment is in the disengaging cooperation position, and connecting panel, spring installation and the position that compresses between the pin concern.

Accompanying drawing 14 is cutaway views, and the position relation between the stop pin of cancellation spring installation among first embodiment and connecting panel has been described.

Accompanying drawing 15 is performance diagrams, show in one embodiment of the invention when clutch lever breaking away from the direction that cooperates when mobile with friction clutch, be applied to the variation of the load on catch bar and the clutch lever.

Accompanying drawing 16 is lateral plans of the described operating assist device of second embodiment.

Accompanying drawing 17 is lateral plans, and the state that the lid of the described operating assist device of second embodiment has been pulled down has been described.

Accompanying drawing 18 is lateral plans of the operating assist device of second embodiment, and the state of servomechanism has been described when clutch lever is in disengaging cooperation starting position.

Accompanying drawing 19 is lateral plans of the operating assist device of second embodiment, and the state of the part of servomechanism has been described when clutch lever is in disengaging cooperation starting position.

Accompanying drawing 20 is lateral plans of the operating assist device of second embodiment, and the state of servomechanism has been described when clutch lever is in home position.

Accompanying drawing 21 is lateral plans of the operating assist device of second embodiment, and the state of the part of servomechanism has been described when clutch lever is in home position.

Accompanying drawing 22 is lateral plans of the operating assist device of second embodiment, and the state of servomechanism has been described when clutch lever is in the disengaging cooperation position.

Accompanying drawing 23 is lateral plans of the operating assist device of second embodiment, and the state of the part of servomechanism has been described when clutch lever is in the disengaging cooperation position.

Accompanying drawing 24 is cutaway views of the described operating assist device of second embodiment.

Accompanying drawing 25 is transparents view of the described operating assist device of second embodiment.

Accompanying drawing 26 is rear side view of the cover body of second embodiment.

Accompanying drawing 27 is lateral plans, and the installing condition of first support has been described.

Accompanying drawing 28 is lateral plans, and the installing condition of second support has been described.

Accompanying drawing 29 is lateral plans, and the installing condition of the 3rd support has been described.

Accompanying drawing 30 is lateral plans, and the installing condition of adapter plate has been described.

Accompanying drawing 31 is lateral plans, and the installing condition of operating assist device has been described.

Accompanying drawing 32 is planar views, and the installing condition of operating assist device has been described.

Accompanying drawing 33 is cutaway views, and the connection structure between operating assist device and the second clutch backguy has been described.

Accompanying drawing 34 is performance diagrams, show in one embodiment of the invention when clutch lever breaking away from the direction that cooperates when mobile with friction clutch, be applied to the variation of the load on catch bar and the clutch lever.

Accompanying drawing 35 is lateral plans of revising described motor bike.

Accompanying drawing 36 is cutaway views, and another operating assist device in revising and connection structure between the friction clutch have been described.

Accompanying drawing 37 is views of observing on the direction of the arrow A of accompanying drawing 36.

[Reference numeral description]

9: clutch lever (executive component)

18: friction clutch

27: clutch spring

43: clutch cable

50: operating assist device (clutch operating work-saving device)

57: the first rotatable members (movable member)

58: the second rotatable members (movable member)

71,79: cam groove, cam follower (cam mechanism, propelling thrust transferring elements)

82: assist spring (secondary resilient members)

[realizing optimal mode of the present invention]

Hereinafter, with reference to accompanying drawing embodiments of the invention are described.In the following embodiments, clutch operating device of the present invention and operating assist device are applied to motor bike.Clutch operating device of the present invention and operating assist device can be applicable to the riding vehicle except motor bike, and the vehicle except riding vehicle.

[first embodiment]

Motor bike 1 shown in the accompanying drawing 1 has framework 2.This framework 2 has steering head pipe 3, and bend pipe 5 under main frame member 4 and the vehicle frame.This steering head pipe 3 is supporting front fork 6.The bar handle 8 that is used to handle front-wheel 7 is fixed to the upper end of front fork 6.Clutch lever 9 as the example of executive component is connected on the left end of operating handle 8.

Main frame member 4 extends back from steering head pipe 3.Main frame member 4 is supporting fuel tank 10 and vehicle seat 11.The second portion 5b that bend pipe 5 has the 5a of first that extends from the front end of main frame member 4 downwards and extends back from the lower end of the 5a of first under the vehicle frame.

Framework 2 is supporting V-arrangement double cylinder engine 13.This driving engine 13 has crankcase 14, preceding cylinder 15 and exhaust casing 16.Preceding cylinder 15 and exhaust casing 16 are outstanding towards the fuel tank 10 of crankcase 14 tops from the upper surface of crankcase 14.

Bend pipe 5 is fixed driving engine 13 under the vehicle frame of framework 2.The 5a of first of bend pipe 5 extends in driving engine 13 front vertical-right under the vehicle frame, and second portion 5b longitudinal extension below crankcase 14 of bend pipe 5 under the vehicle frame.

As shown in accompanying drawing 1 and accompanying drawing 2, crankcase 14 holds bent axle 17 and Wet-type multi-disc friction clutch 18.Bent axle 17 on even keels are arranged on the vehicle-width direction, and reduction pinion teeth 19 is fixed on the left end of bent axle 17.Friction clutch 18 is arranged in these reduction pinion teeth 19 back and is positioned at left end at crankcase 14.Friction clutch 18 is coated with clutch cover back plate 20, and this clutch cover back plate is connected on the left side of crankcase 14.

Friction clutch 18 is used to connect and disconnects the transmission of the moment of torsion of bent axle 17 to transmission input shaft 21, and carries out M/C during with hand grip clutch lever 9 as the rider.As shown in accompanying drawing 2, friction clutch 18 has clutch outer member 23, clutch bushing 24, several friction linings 25, several clutch segments 26, clutch spring 27 and clutch release mechanism 28.

Clutch outer member 23 is rotatably supported on the left end of input shaft 21 through bearing 30.Deceleration big gear wheel 31 is connected on the end of clutch outer member 23 coaxially.Deceleration big gear wheel 31 and reduction pinion teeth 19 engagement fit.This cooperation allows the moment of torsion of bent axle 17 to pass to clutch outer member 23.

Clutch bushing 24 is fixed on the left end of input shaft 21, thereby can rotate with input shaft 21.Clutch bushing 24 by clutch outer member 23 around, and have towards outstanding several sleeve parts 32 (only showing one of them in the accompanying drawing 2) of clutch cover back plate 20.

Friction lining 25 is bearing on the neighboring of clutch outer member 23.Friction lining 25 can rotate with clutch outer member 23, and be arranged on coaxially at certain intervals input shaft 21 axially on.

Clutch segment 26 is bearing on the neighboring of clutch bushing 24.Clutch segment 26 can rotate with clutch bushing 24, and each clutch segment 26 all extends between adjacent friction lining 25.Therefore, friction lining 25 and clutch segment 26 alternately are arranged in the clutch outer member 23.

In the present embodiment, diaphragm spring is as clutch spring 27.Clutch spring 27 is positioned on the left end and clutch bushing 24 of clutch outer member 23, and is bearing on the end of sleeve part 32.Clutch spring 27 is pressed against friction lining 25 on the clutch segment 26 consistently through pressure plate 33.Thereby, between friction lining 25 and clutch segment 26, produce friction force, and with friction clutch 18 remain on can transfer torque clutch in (clutch-In) state.

Clutch release mechanism 28 is used for the pressure that releasing clutch spring 27 is produced on friction lining 25.In the present embodiment, clutch release mechanism 28 is the rack-and-pinion type.Clutch release mechanism 28 has catch bar 37 and catch bar axle 39, and this catch bar has tooth bar 36, and this catch bar axle has gear 38.

Catch bar 37 is rotatably supported in the centre of pressure plate 33 by bearing 35, and with input shaft 21 coaxial positioning.Catch bar 37 is also by clutch cover back plate 20 supporting, be used for towards with away from the direction of input shaft 21 on slide and move.

Catch bar axle 39 is by clutch cover back plate 20 rotatably supports.Catch bar axle 39 extends on vertical direction and the direction perpendicular to catch bar 37, and the gear 38 of catch bar axle 39 and tooth bar 36 engagement fit of catch bar 38.The upper end of catch bar axle 39 projects upwards from clutch cover back plate 20.One end of catch bar 40 is fixed on the upper end of catch bar axle 39.Catch bar 40 extends from the upper end on even keel of catch bar axle 39, and has backguy link 41 at its other end.

The backguy link 41 of catch bar 40 is connected to (referring to accompanying drawing 1) on the clutch lever 9 through clutch cable 43.When the rider used hand grip clutch lever 9, the other end of catch bar 40 was spurred through clutch cable 43, to rotate catch bar axle 39.The rotation of catch bar axle 39 is converted to linear moving by the engagement of gear 38 and tooth bar 36.Therefore, the propelling thrust that pressure plate 33 overcomes clutch spring 27 slides on the direction away from friction lining 25, to discharge the pressure contact between friction lining 25 and the clutch segment 26.As a result, friction clutch 18 is converted to the throw-out-of clutch state of contact, and under this state, the transmission of moment of torsion disconnects.Catch bar axle 39, catch bar 40, clutch cable 43 or the like have constituted the drive disk assembly that the operating effort that will be applied on the clutch lever 9 passes to friction clutch 18.

Therefore, clutch lever 9 can rotate between home position and disengaging cooperation position, and friction clutch 18 keeps the clutch in state at this home position place, and friction clutch 18 breaks away from cooperation position everywhere in the throw-out-of clutch contact condition at this.Because clutch lever 9 has free clearance, for example the end from clutch lever 9 is measured as 10 to 15 millimeters to home position, so even when firmly grasping clutch lever 9 in this scope, also keep the throw-out-of clutch mated condition.When operated clutch bar 9 in the free clearance scope, just spur clutch cable 43 slightly, the propelling thrust of clutch spring 27 does not pass to clutch lever 9.The end position of the free clearance of clutch lever 9 is to break away to cooperate starting position (referring to accompanying drawing 15).When clutch lever 9 was in place, disengaging cooperation starting position, the propelling thrust of clutch spring 27 acted on the clutch lever 9 through clutch cable 43.

Accompanying drawing 15 shows the path increment of clutch cable 43 and the relation between the backguy load when clutch lever 9 turns to the disengaging cooperation position from home position.In accompanying drawing 15, characteristic curve X shows the variation that is applied to the load on the catch bar 40 through clutch spring 27.

As can be from finding out the characteristic curve X, when arriving from home position, clutch lever 9 breaks away from when cooperating the starting position, and load (antagonistic force) is passed through clutch spring 27 and is applied on the catch bar 40.Along with the path increment increase of clutch cable 43, load increases fast, and keeps substantially invariable value after breaking away from the mid point that cooperates between starting position and the disengaging cooperation position at clutch lever 9.In the present embodiment, be applied to substantially invariable point that the load on the catch bar 40 becomes for breaking away from the mid point that cooperates between starting position and the disengaging cooperation position.Yet according to the situation that is provided with of catch bar 40, type of friction clutch 18 or the like, the load substantially invariable point that becomes also can be break away to cooperate the starting position and break away from the point except mid point between the cooperation position.The load substantially invariable point that becomes not only is confined to mid point.The load that is applied on the catch bar 40 passes to clutch lever 9 through clutch cable 43.Therefore, when the installed load of clutch spring 27 is set at higher value, when increasing the torque peak of friction clutch 18, clutch lever 9 will operate harder.

In the present embodiment, operating assist device 50 is installed in the intermediate point place of clutch cable 43, to reduce the load of operated clutch bar 9.In other words, clutch cable 43 has the first clutch backguy 43a that is connected on the clutch lever 9 and is connected to second clutch backguy 43b on the catch bar 40, and first clutch backguy 43a and second clutch backguy 43b are connected to each other through operating assist device 50.

As shown in accompanying drawing 4, each among first clutch backguy 43a and the second clutch backguy 43b all has inner backguy 44 and around the synthetic resin outer tube 45 of this inside backguy 44.Inner backguy 44 contacts with outer tube 45 slidably, and the two ends of inner backguy 44 are all outstanding from the two ends of outer tube 45.

To as shown in the accompanying drawing 7, operating assist device 50 has outer cover 51 and the servomechanism 52 that is contained in this outer cover 51 as accompanying drawing 3.This outer cover 51 is made by the metallic material as aluminum alloy and so on.The outside face of outer cover 51 is a coating, to improve the outward appearance of outer cover 51.The outside face of outer cover 51 can paint.

This outer cover 51 has cover body 53 and cover cap 54.This cover body 53 has the dish type opening towards driving engine 13 left sides, and is bearing in by a support (not shown) on the 5a of first of bend pipe 5 under the vehicle frame.Cover cap 54 utilizes several bolts 55 to be fixed on the cover body 53, and covers the open end of cover body 53.Observe motor bike 1 from the left side, outer cover 51 is positioned at the height place roughly the same with catch bar 40.

To as shown in the accompanying drawing 9, servomechanism 52 has first rotatable member 57, second rotatable member 58 and spring installation 59 as accompanying drawing 4.This first rotatable member 57 forms by for example stamped sheet metal.First rotatable member 57 has pivoting part 60, backguy link 61 and lever part 62.

This pivoting part 60 is between backguy link 61 and lever part 62, and through collar tube sub-assembly 64 rotatably supports (referring to accompanying drawing 6 and accompanying drawing 9) of first axis of revolution 63 by cover body 53.First axis of revolution 63 and of bearing sub-assembly 65 supportings of collar tube sub-assembly 64 opposing ends by cover cap 54.

As shown in accompanying drawing 4, the backguy link 61 of first rotatable member 57 is arranged in the preceding half space of cover body 53 (left side of accompanying drawing 4).This backguy link 61 has lower edge 67.This lower edge 67 bends to arc around first axis of revolution 63.The lower edge 67 of backguy link 61 has fit 68 (referring to accompanying drawing 8) and mating holes 69.Fit 68 is held the inside backguy 44 of first clutch backguy 43a and the inside backguy 44 of second clutch backguy 43b, and 67 outer surface is open at the edge.Mating holes 69 is the slit along the circumferencial direction elongation of lower edge 67.Mating holes 69 is open on the outer surface of lower edge 67 and in the fit 68.The co-operating member 70 that has cylindrical shape and be fixed on the end of inner backguy 44 cooperates with the open edge of mating holes 69.

Therefore, the inside backguy 44 of the inside backguy 44 of first clutch backguy 43a and second clutch backguy 43b is connected through first rotatable member 57 is whole each other.This connection allows the inside backguy 44 of first clutch backguy 43a and the inside backguy 44 of second clutch backguy 43b to move through identical distance together.

Lever part 62 is arranged on the rear side in later half space in cover body 53.This lever part 62 has cam groove 71.As shown in accompanying drawing 4, this cam groove 71 is an arcuate slot, and crooked on the direction relative with the lower edge 67 of backguy link 61.

Second rotatable member 58 has connecting panel 72 and is connected lever 73.Connecting panel 72 be connected lever 73 and for example all pass through stamped sheet metal and form, and be set parallel to each other, the lever part 62 that makes the rotatable member 57 of winning is between them.Connecting panel 72 by the collar tube sub-assembly 75 of cover body 53 through second axis of revolution, 74 rotatably supports (referring to accompanying drawing 6).Connect lever 73 by the bearing sub-assembly 77 of cover cap 54 through the 3rd axis of revolution 76 rotatably supports.Second axis of revolution 74 and the 3rd axis of revolution 76 are provided with coaxially to each other.

Connecting panel 72 be connected lever 73 through first and second pin 78a and the whole each other combinations of 78b.The cam groove 71 that the first pin 78a passes first rotatable member 57 extends.Cam follower 79 as roller and so on is sold the 78a rotatably support by first.Cam follower 79 is arranged in cam groove 71, and contacts with the inside face of cam groove 71.

Therefore, cam groove 71 and cam follower 79 can be with mobile second rotatable members 58 that passes to of first rotatable member 57, and vice versa.Cam groove 71 and cam follower 79 have constituted cam mechanism.

As shown in accompanying drawing 5, spring installation 59 has spring perch 81 and assist spring 82.Spring perch 81 has inner cylinder 83 and out cylinder 84.Inner cylinder 83 can be assemblied in the out cylinder 84 axially slidably, and this allows spring perch 81 to launch and shrinks.

Inner cylinder 83 has spring container 85 and revolution terminal 86.This spring container 85 is sentenced the flange mode at an end of inner cylinder 83 and is extended from outer surface.Revolution terminal 86 is positioned at an end place of inner cylinder 83, and is rotatably supported on the mount pad 87, and this mount pad is formed on the cover body 53 in-to-in front ends.

Out cylinder 84 has spring container 88 and is connected terminal 89.Spring container 88 is sentenced the flange mode at an end of out cylinder 84 and is extended from outer surface.This connection terminal 89 is positioned at an end place of out cylinder 84, and is pivotally connected on the connecting panel 72 of second rotatable member 58 through pin 90.Therefore, spring perch 81 connects the front end and the connecting panel 72 of cover bodies 53, and cover body 53 vertically on extend.

Assist spring 82 is a compression disc spring, and is arranged on compressive state between the spring container 88 of the spring container 85 of inner cylinder 83 and out cylinder 84.Therefore, spring perch 81 is subjected to constant promotion on its expansion direction.When clutch lever 9 is in when break away from cooperating the place, starting position, the revolution of spring perch 81 terminal 86 and be connected end 89, and the second and the 3rd axis of revolution 74 and 76 center of turns as second rotatable member 58 are positioned on the straight line S1, as shown in accompanying drawing 11.

As shown in accompanying drawing 3 and accompanying drawing 7, cover cap 54 has a pair of first backguy intake 95a and the 95b and the second backguy intake 96.This first and second intake 95a, 95b and 96 are open in outer cover 51.The first backguy intake 95a projects upwards from the top of the front end of cover cap 54.Another first backguy intake 95b is inclined upwardly outstanding from the centre portion of the front end of cover cap 54.The second backguy intake 96 is outstanding backward from the bottom of the rear end of cover cap 54.

In the present embodiment, first clutch backguy 43a is inserted among the first backguy intake 95a.The inside backguy 44 of first clutch backguy 43a extends in the outer cover 51, and is connected with first rotatable member 57.First clutch backguy 43a from the front end of outer cover 51 along vehicle frame under the 5a of first of bend pipe 5 extend upward (referring to accompanying drawing 1).

The first backguy intake 95b is used to change the direction that clutch cable 43a extends from outer cover 51.First backguy is drawn mouthful 95b preferably by the sealing of cover of dust (not shown), enters into outer cover 51 to prevent dust or foreign matter when it does not use.

Second clutch backguy 43b is inserted in the second backguy intake 96.The inside backguy 44 of second clutch backguy 43b extends in the outer cover 51, and is connected with first rotatable member 57.Left side along driving engine 13 extends back second clutch backguy 43b from the rear end of outer cover 51, and with first rotatable member 57 and catch bar 40 linear be connected (referring to the accompanying drawings 1) of servomechanism 52.

Accompanying drawing 4 and accompanying drawing 5 show the state of servomechanism 52 when clutch lever 9 is in home position.When clutch lever 9 was positioned at home position, second axis of revolution 74 of connecting panel 72 and the 3rd axis of revolution 76 that is connected lever 73 were positioned at below revolution terminal 86 that connects spring perch 81 and the straight line S1 that is connected end 89.Simultaneously, spring installation 59 tilts to make that the ratio revolution terminal 86 of terminal 89 location of connection of spring perch 81 is higher.In addition, the cam groove 71 of connecting panel 72 cover body 53 vertically on extend, and remain on position protruding upward.

When the rider cooperated the starting position to move from home position towards disengaging clutch lever 9, first rotatable member 57 upwards spurred through first clutch backguy 43a, and rotates on the clockwise direction shown in the arrow in accompanying drawing 10 and accompanying drawing 11.The rotation of rotatable member 57 makes the lever part 62 with cam groove 71 move down.Therefore, the cam follower 79 that contacts with cam groove 71 is subjected to its power that promotes previously towards cover body 53, and connecting panel 72 be connected lever 73 and rotate in the counterclockwise direction.As a result, spring installation 59 rotates around revolution terminal 86.

Break away from when cooperating starting positions when clutch lever 9 arrives, second is positioned at the revolution terminal 86 that is connected spring perch 81 with the 3rd axis of revolution 74 and 76 and is connected on the straight line S1 of end 89, as shown in accompanying drawing 11.Therefore, although on the propelling thrust of assist spring 82 is applied to connecting panel 72 and is connected lever 73, propelling thrust can not make connecting panel 72 be connected lever 73 and rotate.

When clutch lever 9 from break away from cooperating the starting position towards breaking away from cooperation position when moving, first rotatable member 57 continues to rotate in the clockwise direction.The rotation of first rotatable member 57 makes the lever part 62 with cam groove 71 move down, and cam groove 71 is on the vertical position.Therefore, the cam follower 79 that contacts with cam groove 71 is subjected to it obliquely downwards towards the power that promotes previously of cover body 53, and connecting panel 72 be connected lever 73 and rotate in the counterclockwise direction.

In the present embodiment, when clutch lever 9 cooperates the starting position to move to the disengaging cooperation position from breaking away from, spring installation 59 rotates around revolution terminal 86, and the straight line S1 that connects the revolution terminal 86 of spring installation 59 and be connected end 89 is offset to the position below connecting panel 72 and the center of turn that is connected lever 73.

Therefore, the spring perch 81 that is subjected to the propelling thrust of assist spring 82 launches, and the propelling thrust of assist spring 82 act as connecting panel 72 and the power that is connected lever 73 rotations of making.So, when clutch lever 9 moves past and breaks away from when cooperating the starting position towards breaking away from cooperation position, assist spring 82 force to make connecting panel 72 be connected lever 73 and rotate in the counterclockwise direction.Therefore, the propelling thrust of assist spring 82 and rider apply and are used for the promptly operating effort stack of clutch lever 9.So, can reduce to act on the rider's of operated clutch bar 9 load.

According to present embodiment, cam groove 71 determines connecting panels 72 and is connected the time that lever 73 is accepted the propelling thrust of spring installation 59 and moved in the counterclockwise direction.More particularly, cam groove 71 belong to when clutch lever 9 from the mid point that break away to cooperate the starting position and break away from cooperation position towards breaking away from cooperation position when moving, can with from connecting panel 72 be connected propelling thrust that lever 73 is applied to the assist spring 82 on first rotatable member 57 and remain on shape in the fixed range.

In other words, cam groove 71 belongs to when clutch lever 9 moves to mid point from break away from cooperating the starting position and allows connecting panel 72 and be connected the shape that lever 73 moves, with move to when breaking away from cooperation position from mid point at clutch lever 9, restriction connecting panel 72 be connected lever 73 and move shape to prevent that assist spring 82 from freely launching.Therefore, in the present embodiment, the cam mechanism control assist spring 82 that is made of cam groove 71 and cam follower 79 is applied to the propelling thrust on first rotatable member 57.

In accompanying drawing 15, characteristic curve Y show when clutch lever 9 breaking away from the direction that cooperates when mobile with friction clutch 18, be applied to the variation of the load on the clutch lever 9.As can finding out on from characteristic curve Y, the load that is applied on the clutch lever 9 always cooperates starting positions when the disengaging cooperation position moves less than passing through when clutch lever 9 to break away from, and clutch spring 27 is applied to the load on the catch bar 40.This is because when the power of transmitting by first clutch backguy 43a makes that connecting panel 72 rotates in the counterclockwise direction, forces to make that the propelling thrust of the assist spring 82 that connecting panel 72 rotates in the counterclockwise direction obtains stack.

In addition, in the present embodiment, because the shape of cam groove 71 is definite like that as described above, so when clutch lever 9 moved to the disengaging cooperation position from breaking away from the mid point that cooperates between starting position and the disengaging cooperation position, the load that is applied on the clutch lever 9 can keep constant substantially.As a result, be applied to the load on the catch bar 40 and be applied to load on the clutch lever 9 with respect to the path increment of backguy with similar changing features, as shown in accompanying drawing 15.

As previously mentioned, when clutch lever 9 is in home position, the 3rd axis of revolution 76 of second axis of revolution 74 of connecting panel 72 and connection lever 73 is positioned at below the revolution terminal 86 and the straight line S1 between the connection terminal 80 that connects spring perch 81, as shown in accompanying drawing 4 and accompanying drawing 5.Therefore, connecting panel 72 be connected lever 73 and promoted in the clockwise direction, just, make friction clutch 18 disconnect on the relative direction of bonded assembly directions at propelling thrust with assist spring 82.

The power that promotes connecting panel 72 in the clockwise direction plays the effect of balanced thrust, and this balanced thrust overcomes makes clutch lever 9 turn to the power that breaks away from the cooperation starting position from home position.As a result, if any variation does not take place, then promptly clutch lever 9 needed initial input load increase, and the operating characteristic of clutch lever 9 affects adversely.

Therefore, in the operating assist device 50 of present embodiment, cancellation spring installation 100 is arranged in the cover body 53 of outer cover 51.As shown in accompanying drawing 4 and accompanying drawing 14, cover body 53 has and is used to hold the case member 101 of cancelling spring installation 100.This case member 101 is positioned at the bottom of the rear end of cover body 53, and is positioned on the side of the second backguy intake 96.

As shown in accompanying drawing 14, case member 101 has vertically extending cylinder 102.Be formed with opening 102a open in outer cover 51 in the upper end of this cylinder 102.This opening 102a is relative with stop pin 103 on being fixed to connecting panel 72.Stop pin 103 is positioned at and is connected terminal 89 relative positions, and connecting panel 72 is connected on bullet 65 spring arrangements 59 with respect to second axis of revolution 74 in this connection end.

As shown in accompanying drawing 14, cancellation spring installation 100 has pin of compressing 104 and cancellation spring 105.This compresses the hollow shape that pin 104 has upper end closed, and flange shape stop part 106 is formed on the lower end that compresses pin 104.Compressing pin 104 is inserted into the cylinder 102 below case member 101 slidably.

Spring container 108 is fixed on the lower end of case member 101 through circlip 107.This spring container 108 is positioned at below the cylinder 102.

Cancellation spring 105 is a compression disc spring, and is arranged on the upper inside surface that compresses pin 104 and is between the spring container 108 of impaction state.This cancellation spring 105 upwards promotes to compress pin 104 consistently.The propelling thrust of cancellation spring 105 is arranged to the level of the balanced thrust that produced a little less than assist spring 82.

Compress pin 104 can be between the primary importance and the second place resilient movement, its upper end is outstanding significantly from the opening 102a of cylinder 102 at this primary importance place, its upper end is outstanding slightly from the opening 102a of cylinder 102 at this second place place.When compressing pin 104 and be positioned at primary importance, the stop part 106 that compresses pin 104 is resisted against on the lower end of cylinder 102, compresses the position of pin 104 with restriction.When compressing pin 104 and be positioned at second place place, the stop part 106 that compresses pin 104 is resisted against on the spring container 108, compresses the position of pin 104 with restriction.

When clutch lever 9 moves to when break away from cooperating the starting position from home position, the upper end that compresses pin 104 is resisted against from below on the stop pin 103 of connecting panel 72, as shown in accompanying drawing 5 and accompanying drawing 11.Therefore, connecting panel 72 is subjected to cancelling the propelling thrust effect of spring 105 through stop pin 103.As a result, the propelling thrust of assist spring 82 is applied to the almost nil with joint efforts of propelling thrust on the connecting panel 72 with cancellation spring 105, and when clutch lever 9 is in the free clearance scope in the time, limits connecting panel 72 and rotate in the clockwise direction.

When clutch lever 9 moved past disengaging cooperation starting position arrival disengaging cooperation position, the stop pin 103 of connecting panel 72 separated with the upper end that compresses pin 104, as shown in accompanying drawing 13.As a result, the propelling thrust of cancellation spring 105 will compress pin 104 and remain on the primary importance place, and the propelling thrust of assist spring 82 force to make connecting panel 72 be connected lever 73 and rotate in the counterclockwise direction.

As shown in accompanying drawing 3, accompanying drawing 6 and accompanying drawing 7, the cover cap 54 of outer cover 51 has circular open 110.This opening 110 is relative with the backguy link 61 of first rotatable member 57, and the fit 68 of this backguy link 61 and mating holes 69 are exposed to the outside of outer cover 51 by opening 110.In other words, finger or instrument can be inserted opening 110 and inner backguy 44 be coupled in the fit 68 of backguy link 61, perhaps the co-operating member 70 with the place, end of inner backguy 44 is coupled in the mating holes 69.Therefore, under cover cap 54 was fixed to situation on the cover body 53, inner backguy 44 can be connected with first rotatable member 57.

Cover cap 54 has the abutment wall 111 that extends to the central authorities of opening 110 from the edge of opening of opening 110.This abutment wall 111 is positioned at the position of the backguy link 61 that does not disturb first rotatable member 57, and has the sleeve part 113 of band screw hole 112 at its end.The position of screw hole 112 overlaps with the central authorities of opening 110.

Opening 110 is coated with plate-like lid 114 (referring to accompanying drawing 1).This lid 114 removably is assembled in the opening 110, and utilizes bolt 115 to be fixed to (referring to accompanying drawing 6) on the abutment wall 111.This bolt 115 extends through the central authorities of lid 114, and is screwed in the screw hole 112 of sleeve part 113.

As shown in accompanying drawing 3 and accompanying drawing 9, the backguy link 61 of first rotatable member 57 has hexagon patchhole 118.This patchhole 118 is arranged in the zone of opening 1110, and when clutch lever 9 is positioned at place, disengaging cooperation starting position, right side, is in the positioning recess 119 corresponding positions with cover body 53.Therefore, be inserted in the patchhole 118 by passing opening 110 as the instrument of inner-hexagon spanner and so on, and the top of this instrument is coupled in the recess 119, this first rotatable member 57 can be remained on the position shown in the accompanying drawing 10.

So, when clutch lever 9 is positioned at place, disengaging cooperation starting position, right side, can determines the position of first rotatable member 57, and can regulate the free clearance of clutch cable 43 in this state.

According to present embodiment, when clutch lever 9 moved to the disengaging cooperation position from breaking away from the mid point that cooperates between starting position and the disengaging cooperation position, the servomechanism 52 that is installed in the intermediate point place of clutch cable 43 remained on assist spring 82 in the fixed range through the propelling thrust that first rotatable member 57 is applied on the clutch cable 43.In other words, this servomechanism 52 has been cancelled assist spring 82 and is applied to propelling thrust on the clutch cable 43 and breaks away from cooperation positions along with clutch lever 9 arrives and increase.

Therefore, from clutch spring 27 be applied on the catch bar 40 of clutch release mechanism 28 load and through servomechanism 52 be applied to actual load on the clutch lever 9 with respect to the path increment of backguy with similar changing features.

As a result, although the propelling thrust of assist spring 82 is applied on the clutch cable 43, can prevent that also clutch lever 9 from lightening suddenly when breaking away from cooperation position disconnecting in the connection procedures with friction clutch 18.So, can reduce operated clutch bar 9 needed power, and can with operating routine clutch lever identical operations sense clutch lever 9 is operated.Therefore, the operation of clutch lever 9 can not cause any sense of discomfort.

In addition, according to present embodiment, first clutch backguy 43a and second clutch backguy 43b move with man-to-man relation between them.Therefore, under the situation of the mechanism that does not change friction clutch 18, servomechanism 52 can be installed in clutch lever 9 mobile passed in the path of catch bar 40.

And the servomechanism 52 of present embodiment has cancellation spring installation 100, and when clutch lever 9 was in home position, this cancellation spring installation was resisted against from below on the stop pin 103 of connecting panel 72.The cancellation spring 105 of this cancellation spring installation 100 plays the power-assisted effect of balance that cancellation is produced by assist spring 82, and prevents that connecting panel 72 from rotating on the power-assisted basis of this balance with on the direction that friction clutch 18 cooperates.

Therefore, at first promptly clutch lever 9 needed initial input load can not increase, and have the advantage of the operating characteristic that can improve clutch lever 9.

(second embodiment)

In a second embodiment, the described operating assist device 50 of first embodiment is revised as accompanying drawing 16 to as shown in the accompanying drawing 25.The operating assist device 50 of first embodiment has reduced size.In the following description, represent with identical Reference numeral with the corresponding parts of the parts of first embodiment.

To as shown in the accompanying drawing 18, this operating assist device 50 also has outer cover 51 and servomechanism 52 in a second embodiment as accompanying drawing 16.This outer cover 51 has cover body 53 and cover cap 54.In a second embodiment, the area observed from the side of cover body 53 and cover cap 54 is less than the area among first embodiment.

As shown in accompanying drawing 16 and accompanying drawing 18, each cover body 53 and cover cap 54 all have first, second and the 3rd secure component 151,152 and 153, and each secure component all has bolt hole.Cover body 53 and cover cap 54 usefulness bolts 115 are fixed to one another at secure component 151,152 and 153 places.

As shown in accompanying drawing 18, servomechanism 52 has first rotatable member 57, second rotatable member 58, spring installation 59 and cancellation spring installation 100.

First rotatable member 57 has pivoting part 60 and backguy link 61.As shown in accompanying drawing 4, this first rotatable member 57 of first embodiment also has lever part 62 except backguy link 61, and this lever part has cam groove 71.On the contrary, the rotatable member 57 of second embodiment does not have lever part 62, and backguy link 61 has cam groove 71, as shown in accompanying drawing 18.In the present embodiment, owing to omitted lever part 62, so the area of first rotatable member 57 is less.This first rotatable member 57 is in fan shape basically, and during along the end on observation of first axis of revolution 63, central angle is less than 120 °.

As shown in accompanying drawing 24, pivoting part 60 by the sleeve part 64 of cover body 53 through first axis of revolution, 63 rotatably supports.First axis of revolution 63 and of bearing sub-assembly 65 supportings of sleeve part 64 opposing ends by cover cap 54.

As shown in accompanying drawing 18 and accompanying drawing 25, backguy link 61 has the first fit 68a and the first mating holes 69a at an end place of its lower edge.This backguy link 61 has the second fit 68b and the second mating holes 69b at the other end place of its lower edge.

The inside backguy 44 of first clutch backguy 43a is contained among this first fit 68a.This first fit 68a is open on the outer surface of lower edge.The first mating holes 69a is circular.This first mating holes 69a is open in the outer surface of lower edge and the first fit 68a.Columniform co-operating member 70a is fixed on the end of inside backguy 44 of first clutch backguy 43a.Co-operating member 70a matches with the open edge of the first mating holes 69a.Thereby the inside backguy 44 of first clutch backguy 43a cooperates with backguy link 61.

The inside backguy 44 of second clutch backguy 43b is contained among the second fit 68b.This second fit 68b is open on the outer surface of lower edge.The second mating holes 69b also is circular.The second mating holes 69b is open in the outer surface of lower edge and the second fit 68b.Columniform co-operating member 70b matches with the open edge of the second mating holes 69b, and this co-operating member is fixed on the end of inside backguy 44 of second clutch backguy 43b.Thereby the inside backguy 44 of second clutch backguy 43b cooperates with backguy link 61.

The first fit 68a and the second fit 68b bend to arc around first axis of revolution 63.The inside backguy 44 of the inside backguy 44 of first clutch backguy 43a and second clutch backguy 43b is connected through first rotatable member 57 is whole each other.Therefore, the inside backguy 44 of the inside backguy 44 of first clutch backguy 43a and second clutch backguy 43b can be moved with identical moving velocity together.Because distance from first axis of revolution 63 to co-operating member 70a and the distance from first axis of revolution 63 to co-operating member 70b equate, so two inner backguys 44 can move through identical distance.

Cam groove 71 is between the first mating holes 69a and the second mating holes 69b.Cam groove 71 is crooked slit, and this slit caves in towards the first mating holes 69a.

Second rotatable member 58 of first embodiment has connecting panel 72 and is connected lever 73 (referring to accompanying drawing 4).On the contrary, second rotatable member 58 of present embodiment only is made of connecting panel 72, as shown in accompanying drawing 19.This connecting panel 72 is positioned on the opposite side of first rotatable member 57.Connecting panel 72 by the sleeve part 75 (referring to accompanying drawing 24) of cover body 53 through second axis of revolution, 74 rotatably supports.

The first pin 78a combines with connecting panel 72, and this first pin 78a extends to the front side of first rotatable member 57.As the cam follower 79 of roller and so on by this first pin 78a rotatably support.Cam follower 79 is arranged in cam groove 71, and contacts with the inside face of cam groove 71.

Therefore, when first rotatable member 57 or 58 rotations of second rotatable member, cam groove 71 and cam follower 79 can pass to second rotatable member 58 from first rotatable member 57 with power, perhaps pass to first rotatable member 57 from second rotatable member 58.This cam groove 71 and cam follower 79 have constituted cam mechanism.

The structure of spring installation 59 is basically the same as those in the first embodiment.Yet in the present embodiment, spring installation 59 is fixed on the diverse location place with different attitudes.As shown in accompanying drawing 21, in the present embodiment, mount pad 87 is arranged on the rear end (right hand end in the accompanying drawing 21) in the cover body 53, and this mount pad is used for the revolution end 86 of support spring device 59.Spring installation 59 extends forward or extension (referring to accompanying drawing 23) forward obliquely from the rear end in cover body 53.

As shown in accompanying drawing 19, the terminal 89 process pins 90 of the connection of spring installation 59 are pivotally connected on the connecting panel 72 of second rotatable member 58.When clutch lever 9 is positioned at when break away from cooperating starting position (state shown in the accompanying drawing 19), the revolution of spring perch 81 terminal 86 and be connected end 89, and all be positioned on the straight line S1 as second axis of revolution 74 of the center of turn of second rotatable member 58.

Accompanying drawing 20 and accompanying drawing 21 show when clutch lever 9 is in home position, the state of servomechanism 52.When clutch lever 9 was in home position, second axis of revolution 74 of connecting panel 72 was positioned at revolution terminal 86 that connects spring perch 81 and the straight line S1 top that is connected terminal 89, as shown in accompanying drawing 21.Cam follower 79 is positioned at the left end of cam groove 71.

When the rider cooperated the starting position to move from home position towards disengaging clutch lever 9, first rotatable member 57 upwards spurred through first clutch backguy 43a, and rotates in the clockwise direction around first axis of revolution 63.The rotation of this first rotatable member 57 causes cam groove 71 also to rotate in the clockwise direction around axis of revolution 63 and moves up.Therefore, the cam follower 79 that contacts with cam groove 71 is subjected to the power with its promotion that makes progress, and connecting panel 72 rotates in the counterclockwise direction around second axis of revolution 74.As a result, spring installation 59 rotates in the clockwise direction around revolution terminal 86.

When clutch lever 9 arrived place, disengaging cooperation starting position, second axis of revolution 74 was positioned at the revolution terminal 86 that connects spring perch 81 and is connected on the straight line S1 of end 89, as shown in accompanying drawing 19.Therefore, the propelling thrust of assist spring 82 does not act on and makes connecting panel 72 rotate.

When clutch lever 9 from break away from cooperating the starting position towards breaking away from cooperation position when moving, first rotatable member 57 further rotates in the clockwise direction.The rotation of this first rotatable member 57 causes cam groove 71 further to rotate around axis of revolution 63, and moves up.At this moment, cam groove 71 moves to horizontal position on the whole.As a result, the cam follower 79 that contacts with cam groove 71 is subjected to its top or anterior power that promotes towards cover body 53, and connecting panel 72 further rotates in the counterclockwise direction.

When clutch lever 9 cooperated the starting position to move to the disengaging cooperation position from breaking away from, spring installation 59 further rotated in the clockwise direction around revolution terminal 86.Like this, connect the revolution terminal 86 and center of turn (axis of revolution 74) the upwards skew of the straight line S1 that is connected end 89 of spring perch 81 from connecting panel 72.

Therefore, the spring perch 81 that is subjected to the propelling thrust of assist spring 82 launches, and the propelling thrust of assist spring 82 passes to connecting panel 72, and plays the effect of the plate 72 that is rotationally connected in the counterclockwise direction.So when clutch lever 9 is moved beyond and breaks away from when cooperating the starting position towards breaking away from cooperation position, assist spring 82 is forced to make connecting panel 72 rotate in the counterclockwise direction.Therefore, the propelling thrust of assist spring 82 rider that is added to applies and is used for the promptly operating effort of clutch lever 9, and can reduce the load to the rider of operated clutch bar 9.

In the present embodiment, cam groove 71 same decision connecting panels 72 were subjected to from the propelling thrust of spring installation 59 and the time that begins to rotate in the counterclockwise direction.When clutch lever 9 cooperated the starting position to move to the disengaging cooperation position from breaking away from, cam groove 71 also belonged to the shape that changes angular rate, and this angular rate is the cireular frequency of second rotatable member 58 and the ratio of the cireular frequency of first rotatable member 57.Cam groove 71 belongs at clutch lever 9 and moves to the starting stage of mid point from break away from cooperating the starting position, the propelling thrust (when rotating first rotatable member 57 especially, in the clockwise direction) that passes to the assist spring 82 of first rotatable member 57 through connecting panel 72 can be than the shape of the quicker increase of conventional equipment.

Accompanying drawing 34 shows the modified characteristics of propelling thrust Z0 in the modified characteristics of propelling thrust Z of assist spring 82 and the conventional equipment contrastively.The gradient of the characteristic ascent stage of propelling thrust Z is greater than the gradient in the conventional equipment in the servomechanism 52.

Herein, conventional equipment is a kind of like this device, wherein the rotatable member that links to each other with clutch release mechanism directly is connected with assist spring, rotatable member rotates with identical speed with assist spring, and assist spring can freely launch (for example, disclosed device in the patent document 1) along with the rotation of rotatable member.

In this servomechanism 52, when clutch lever 9 is in when break away from cooperating the place, starting position, the cireular frequency ratio of the ratio of the cireular frequency of second rotatable member 58 and the cireular frequency of first rotatable member 57 when being in disengaging cooperation position place when clutch lever 9.Simultaneously, when clutch lever 9 moved to mid point from break away from cooperating the starting position, the aviation value of cireular frequency ratio was greater than the aviation value when the cireular frequency ratio of clutch lever 9 when mid point moves to the disengaging cooperation position.When clutch lever 9 moved to the disengaging cooperation position from disconnecting the connection starting position, the cireular frequency ratio can reduce gradually.By this cireular frequency ratio of correct setting, assist spring 82 passes to the modified characteristics of the propelling thrust Z of first rotatable member 57, and just clutch lever 9 suffered power-assisted modified characteristics can arbitrarily be provided with.

As mentioned above, by the shape of cam groove 71 correctly is set, can the power-assisted modified characteristics of free adjustment.As shown in accompanying drawing 34, be applied on the catch bar 40 of friction clutch 18 load X clutch lever 9 by break away from cooperate the starting position after horse back marked change takes place, and intensity of variation after this is less.By adopting this servomechanism 52, the gradient of the characteristic ascent stage of propelling thrust Z can be bigger, thus be applied on the clutch lever 9 load Y can according to clutch lever 9 from disconnecting the load X changing features much at one be connected on the catch bar 40 that is applied to friction clutch 18 when the starting position moves to mid point.Just, be applied to the load Y on the clutch lever 9 and the ratio that is applied between the load X on the catch bar 40 can be in a fixing scope.Therefore, may reduce operated clutch bar 9 needed power, and in half-clutch operation, provide and the sense of conventional clutch lever identical operations.

As described in first embodiment, when clutch lever 9 moves to when breaking away from cooperation position from mid point, the power-assisted that is applied on first rotatable member 57 remains in the fixing scope.Just cam groove 71 belongs to when clutch lever 9 and assist spring 82 is applied to propelling thrust on first rotatable member 57 through connecting panels 72 when moving and remains on shape in the fixed range towards breaking away from cooperation position from mid point.

In the present embodiment, hold the last front end place that the case member 101 of cancelling spring installation 100 is arranged on the cover body 53 of outer cover 51, as shown in accompanying drawing 19.This case member 101 (perpendicular to the direction on the plane of accompanying drawing 19) is in the horizontal aimed at the first backguy intake 95a.The inner structure of cancellation spring installation 100 is identical with the structure of the cancellation spring installation 100 of first embodiment.

As shown in accompanying drawing 23, the opening 102a of the cylinder 102 of cancellation spring installation 100 is open downwards.Compress pin 104 can be between the primary importance and the second place resilient movement, this lower end that compresses pin at the primary importance place opening 102a from cylinder 102 outstanding significantly, its lower end at the second place place opening 102a from cylinder 102 outstanding slightly.When compressing pin 104 and be in primary importance, the stop part 106 that compresses pin 104 is resisted against on the upper end of cylinder 102, compresses the position of pin 104 with restriction.When compressing pin 104 and be in the second place, the stop part 106 that compresses pin 104 is resisted against on the spring container (not shown), compresses the position of pin 104 with restriction.

When clutch lever 9 moves to when break away from cooperating starting position (referring to accompanying drawing 19) from home position (referring to accompanying drawing 21), compress pin 104 and be resisted against on the stop pin 103 of connecting panel 72 from above.So connecting panel 72 is subjected to cancelling the propelling thrust of spring 105 (not shown in accompanying drawing 21 grades, referring to accompanying drawing 14) through stop pin 103.As a result, in the time of in clutch lever 9 is in the free clearance scope, the propelling thrust of cancellation spring 105 is cancelled the propelling thrust that assist spring 82 is applied on the connecting panel 72.Therefore, the power that is applied on the connecting panel 72 is substantially zero, and in the clockwise direction rotation of the connecting panel 72 that is caused by assist spring 82 (so clutch lever 9 return) is restricted.

When clutch lever 9 moved past disengaging cooperation starting position near the disengaging cooperation position, the stop pin 103 of connecting panel 72 separated with the lower end that compresses pin 104, as shown in accompanying drawing 23.The propelling thrust that the result cancels spring 105 will compress pin 104 and remain on the primary importance place, and connecting panel 72 is subjected to the power from assist spring 82, and this is tried hard to recommend the plate that is dynamically connected and rotates in the counterclockwise direction.

As shown in accompanying drawing 17, the cover cap 54 of outer cover 51 has circular open 110.This opening 110 is relative with the backguy link 61 of first rotatable member 57, and the fit 68a of backguy link 61 and 68b and mating holes 69a and 69b are exposed to the outside of outer cover 51 by this opening 110.In other words, can pass that this opening 110 will be pointed or instrument inserts, inner backguy 44 is coupled among the fit 68a and 68b of backguy link 61, perhaps co-operating member 70a and the 70b with inner backguy 44 ends is coupled among mating holes 69a and the 69b.Therefore, under cover cap 54 was fixed to situation on the cover body 53, inner backguy 44 can be connected on first rotatable member 57.

Cover cap 54 has first and second abutment wall 111a and the 111b, and this abutment wall is extended to the center of opening 110 from the edge of opening 110.The position that the first abutment wall 111a is relative with respect to being centered close to of opening 110 with the second abutment wall 111b.Among the first abutment wall 111a and the second abutment wall 111b each all has the sleeve part 113 of band screw hole 112 at its end.

As shown in accompanying drawing 16, opening 110 is coated with plate-like lid 114.This lid 114 is detachably fixed on the opening 110, and is fixed on abutment wall 111a and the 111b by bolt 115.Bolt 115 is screwed in the screw hole 112 of sleeve part 113 of abutment wall 111a and 111b.

As shown in accompanying drawing 17, the backguy link 61 of first rotatable member 57 has hexagon patchhole 118.This patchhole 118 is arranged in the zone of opening 110.Therefore, when as the instrument of inner-hexagon spanner and so on when opening 110 is inserted into the patchhole 118, can regulate the position of first rotatable member 57.The backguy link 61 of first rotatable member 57 has positioning recess 119a.The second abutment wall 111b of cover cap 54 has locator protrusions 119b.When clutch lever 9 was in place, disengaging cooperation starting position, right side, projection 119b and recess 119a were aligned with each other.Therefore, by the free clearance distance of adjusting clutch lever 9, thereby projection 119a and recess 119b can be aligned with each other, can be provided with at an easy rate to break away to cooperate the starting position.

Next, describe operating assist device 50 is connected to the method on the framework 2 of motor bike 1 and the example of mounting structure thereof.Except the position of the 3rd secure component 153 changes to the bottom of cover body 53 operating assist device 50 described below and aforesaid operations work-saving device 50 identical (referring to accompanying drawing 26) from the top of cover body 53.Other structures are all same as described above.

As shown in accompanying drawing 32, operating assist device 50 is connected to through first support 161, second support 162, the 3rd support 163 and adapter plate 164 under the vehicle frame of framework 2 on the bend pipe 5.

As shown in accompanying drawing 27, first support 161 is fixed under the vehicle frame on the bend pipe 5.The method of fixing first support 161 is not specifically limited.Herein, first support 161 by solder bond under the vehicle frame on the bend pipe 5.Identical with the situation of second support 162, first support 161 is connected under the vehicle frame on the bend pipe 5, with the part of supporting engine 13 at first.Just, use existing support 161 and 162 attended operation work-saving devices 50.The longitudinal extension of first support 161 bend pipe 5 under the car body.First support 161 has bolt hole 171 at its vertical end.

As shown in accompanying drawing 28, second support 162 is positioned on the front side of first support 161.Second support 162 is for observing the snyed plate member that is generally triangular from the side.Second support 162 has first half 162a and latter half 162b, this first half with the direction that vertically tilts of vehicle on extend along first support 161, this latter half is positioned at first half 162a back and curves inwardly (referring to accompanying drawing 32).The first half 162a of second support 162 has bolt hole 172 in the bolt hole 171 corresponding positions with first support 161.The latter half of second support 162 also has bolt hole 173.As shown in accompanying drawing 32, the bolt 174 that is used for fixing the part of driving engine 13 is assembled in the bolt hole 173.This part of driving engine 13 is supported through first support 161 and second support 162 by bend pipe under the vehicle frame 5.

As shown in accompanying drawing 29, the 3rd support 163 is positioned on the front side of second support 162.The 3rd support 163 is for bending tripartite snyed plate from front to back, and have along the anterior 163a of the first half 162a extension of second support 162, from the outward extending middle part 162b of anterior 163a with from rear portion 163c (referring to accompanying drawing 32) that middle part 162b extends internally.Anterior 163a has bolt hole 175 in the bolt hole 172 corresponding positions with the first half 162a of second support 162.Rear portion 163c also has bolt hole 176 with lower end in the top.

As shown in accompanying drawing 32, bolt 177 was inserted the bolt hole 171 of first support 161, the bolt hole 172 of second support 162 and the bolt hole 175 of the 3rd support 163.Second support 162 and the 3rd support 163 and first support 161 are fixed together.

As shown in accompanying drawing 30, adapter plate 164 is placed on the front side of rear portion 163c of the 3rd support 163.Adapter plate 164 is in dull and stereotyped form (referring to accompanying drawing 32).Adapter plate 164 rear end thereon has the slit 178 that extends in the vertical with following rear end.This adapter plate 164 heart therein has the shape of path of motion.Adapter plate 164 also has three bolts hole 181, and the bolt (not shown) that is used for fixing the cover body 53 of operating assist device 50 can be inserted this bolt hole.

Bolt 180 (referring to accompanying drawing 32) was inserted the bolt hole 176 of the 3rd support 163 and the slit 178 of adapter plate 164.Bolt 180 can be fixed on any position in slit 178.Therefore, by the plate 164 that is slidingly installed before and after under the situation of inserting slit 178 at bolt 180, can accurately regulate the lengthwise position of this adapter plate 164 at an easy rate with respect to the 3rd support 163.

As shown in accompanying drawing 26, be formed on the leaving side of cover body 53 of operating assist device 50 with bolt hole 181 corresponding three bolts hole 182 of adapter plate 164.Cover body 53 location makes bolt hole 182 overlapping with the bolt hole 184 of adapter plate 164, and is placed on the front side of adapter plate 164 (referring to accompanying drawing 32).Like this, the bolt (not shown) just is screwed in the bolt hole 182 of the bolt hole 181 of adapter plate 164 and cover body 53, so that cover body 53 is fixed on the adapter plate 164.As previously mentioned, because the lengthwise position that can accurately regulate adapter plate 164 at an easy rate, be fixed to lengthwise position on the adapter plate 164 so can accurately regulate cover body 53 at an easy rate.Therefore, can regulate the position of cover body 53, thereby after cover body 53 has been connected on the adapter plate 164, cover body 53 can be positioned at the position of expectation if necessary.

After adapter plate 164 had been connected on the cover body 53, cover cap 54 was placed on the cover body 53, and bolt is screwed in the bolt hole of first secure component 151, second secure component 152 and the 3rd secure component 153, so that cover cap 54 is fixed on the cover body 53.First clutch backguy 43a and second clutch backguy 43b are connected on first rotatable member 57 by the opening 110 of cover cap 54 like this.

As shown in accompanying drawing 33, columniform co-operating member 200 (not shown in accompanying drawing 31 grades) is fixed on the end of outer tube 45 of second clutch backguy 43b.Co-operating member 200 can bond on the outer tube 45, and perhaps press fit is to outer tube 45.Block 204 with screw hole is fixed in the backguy intake of cover cap 54.Going up the screw 201 that extends at vertically (accompanying drawing 33 laterally) is screwed in the screw hole of block 204.

Screw 201 has threaded portion 201a and is formed on diameter major part 201b on the rear side of this threaded portion 201a.Co-operating member 200 is inserted among the diameter major part 201b rotationally.This diameter major part 201b has step at its far-end, thereby the rear end of co-operating member 200 can be captured on this step, and prevents to deviate from from diameter major part 201b.Therefore, when by rotating screw 201 it being moved forward and backward, outer tube 45 moves forward and backward with screw 201.

Screw 201 and co-operating member 200 have through hole, and interior pipe 44 can extend through this through hole.The interior pipe of second clutch backguy 43b extends through the through hole of co-operating member 200 and screw 201, and is connected on first rotatable member 57.Cap 203 is connected on the whole outer surface of diameter major part 201b of screw 201.Reference numeral 202 expressions are used for fixing the nut of the position of screw 201.

Screw 201 is used to regulate the installation site of second clutch backguy 43b and operating assist device 50.Just, after the outer tube 45 of second clutch backguy 43b has been connected to desired location on friction clutch 18 sides, bolt 180 is inserted in the slit 178 of the bolt hole 176 of the 3rd support 163 and adapter plate 164, and is fixed to the degree that operating assist device 50 slides before and after can be as described above.Like this, by the length that rotating screw 201 is regulated the outer tube 45 of second clutch backguy 43b, make the projection 119b of the positioning recess 119a of the rotatable member 57 of winning and cover cap 54 aligned with each other.When recess 119a and projection 119b are aligned with each other, nut 202 is fastening, the position of fix screw 201.Thereby the outer tube 45 of second clutch backguy 43b can be arranged to suitable length.After this, binding bolt 180 is with fixing tightly with adapter plate 164.Like this, lid 114 is placed on the opening 110 of cover cap 54, and utilizes bolt 115 to be fixed on the abutment wall 111a and 111b of cover cap 54.

As previously mentioned, the cam mechanism with cam groove 71 and cam follower 79 also is arranged between first rotatable member 57 and second rotatable member 58 in the present embodiment.Therefore,, the relation between the rotation of the swing of spring installation 59 and first rotatable member 57 can be set freely by the correct curve of determining cam groove 71, and the operating characteristic that can obtain to expect.

When clutch lever 9 cooperated the starting position to move to mid point from breaking away from, after breaking away from the cooperation starting position, the pushing the speed of propelling thrust that assist spring 82 is applied on first rotatable member 57 uprised in the starting stage at once, reduces then.Therefore, owing to can obviously increase power-assisted in the starting stage of half-clutch operation, so can improve operating characteristic.

Simultaneously, when clutch lever 9 moved to mid point from break away from cooperating the starting position, clutch spring 27 was applied to the load on the catch bar 40 of clutch release mechanism 28 and the ratio that is applied between the actual load on the clutch lever 9 can remain in the fixed range.Therefore, when operated clutch bar 9, be applied to load on the clutch lever 9 less than the load that is applied on the catch bar 40, and with change from the similar trend of the load of clutch spring 27.Therefore, can reduce the load of operated clutch bar 9, and nature and comfortable operation sense can be provided.

Spring installation 59 with assist spring 82 can be around terminal 86 swings of revolution.So, owing to can freely change the direction that propelling thrust acted on of spring 82, so always propelling thrust can be applied on the suitable direction.Therefore, although cam mechanism is arranged between the spring installation 59 and first rotatable member 57, can reduce the loss that assist spring 82 is applied to the propelling thrust on first rotatable member 57.In addition, also can reduce the wearing and tearing of servomechanism 52, and can improve the service life and the reliability of operating assist device 50.

The present invention not only is confined to the foregoing description, under the situation that does not break away from its scope, can make various modifications to the present invention.

For example, the executive component that is used for actuating friction clutch not only is confined to manual clutch lever, can be the pedal of clutch with the pin operation.

In the above-described embodiments, clutch cable 43 is made of two backguys: first clutch backguy 43a and second clutch backguy 43b.Yet as long as can be connected on the movable member (rotatable member 57), this clutch cable 43 also can be made of a backguy.This first clutch backguy 43a and second clutch backguy 43b (more particularly, its inner backguy 44) can be formed by a backguy.Just, a lateral parts and other lateral parts that is connected to the backguy (linear structure) on first rotatable member 57 can be regarded first clutch backguy 43a and second clutch backguy 43b respectively as.In this case, although the binding site between the first clutch backguy 43a and first rotatable member 57, and the binding site between the second clutch backguy 43b and first rotatable member 57 can be positioned at the diverse location place, but linear structure can be located to be connected on first rotatable member 57 on one point, thereby the first and second clutch cable 43a and 43b are connected on the rotatable member 57 at a common ground place.

Be used for not only being confined to have the spring installation 59 of assist spring 82 to the secondary resilient members that first rotatable member 57 applies propelling thrust.Assist spring 82 not only is confined to apply the compression spring of propelling thrust on expansion direction, also can be the extension spring that can apply propelling thrust on shrinkage direction.The cancellation elastic component not only is confined to have the cancellation spring installation 100 of cancellation spring 105, and this cancellation elastic component is used for applying the propelling thrust of cancellation power cancellation assist spring 82 when clutch lever 9 is between home position and disengaging cooperation starting position.Dissimilar elastic components also can be used for secondary resilient members or cancellation elastic component as air bellow.

In the various embodiments described above, with clutch lever 9 synchronization-moving movable members are the rotatable members 57 that can rotate around specific rotating shaft (axis of revolution 63).Therefore, the structure of work-saving device 50 that can simplify the operation, and have higher intensity.Not only be confined to this rotatable member with clutch lever 9 synchronization-moving these movable members.For example, movable member can be a member slidably, and it can be along a direction (linearly or curve ground) crank motion.When movable member is can be along the reciprocating member of a direction time, the moving velocity of movable member can be represented with the speed on this direction.Therefore, the speed ratio as the rotating speed of rotatable member and the ratio of the moving velocity of movable member can be illustrated as for example ratio of the speed of movable member on above-mentioned direction and the cireular frequency of rotatable member.

In addition, friction clutch not only is confined to multi-disc wet clutch, and can be the dried power-transfer clutch of veneer.In addition, clutch release mechanism not only is confined to the wheel tooth stripe shape.When clutch release mechanism is ball-screw type or cam type, also can realize the present invention.

In the above-described embodiments, operating assist device 50 is by 5 supportings of bend pipe under the vehicle frame of framework 2.Yet, the installation site of operating assist device 50 is not specifically limited.For example, operating assist device 50 can be positioned at below fuel tank 10 or the vehicle seat 11, first clutch backguy 43a is extended in the vertical, as shown in accompanying drawing 35.

Although not shown, operating assist device 50 can be positioned near the friction clutch 18.When the outer cover 51 of operating assist device 50 is connected on the clutch cover back plate 20, can omit second clutch backguy 43b.

As shown in accompanying drawing 36 and accompanying drawing 37, can omit second clutch backguy 43b, and can be used as axis of revolution 63, as the rotatable shaft of first rotatable member 57 from catch bar axle 39 axially extending axles.This structure can produce and the foregoing description effect much at one.

Claims (22)

1. be contained in the clutch operating work-saving device in the clutch operating device, this clutch operating device has the friction clutch of band clutch spring, and executive component, this executive component is connected on the friction clutch through drive disk assembly, and can overcome the propelling thrust of clutch spring and M/C, to disconnect the moment of torsion transmission of friction clutch, this clutch operating work-saving device comprises:

Secondary resilient members, when executive component is breaking away from when operating on the direction cooperate with friction clutch, this secondary resilient members promotes drive disk assembly breaking away from the direction cooperate with friction clutch, executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from simultaneously, executive component cooperates the place, starting position to be subjected to the antagonistic force of clutch spring in disengaging, finish with the disengaging of friction clutch and cooperate breaking away from the cooperation position place

It is characterized in that when executive component moved to the disengaging cooperation position from breaking away from the midway location that cooperates between starting position and the disengaging cooperation position, the propelling thrust that assist spring is applied on the transmission component remained in the fixed range.

2. clutch operating work-saving device as claimed in claim 1, it is characterized in that, when executive component from break away to cooperate that the starting position returns return side and be in home position the time, this secondary resilient members with direction that friction clutch cooperates on promote transmission component, and when executive component from home position through break away from cooperating the starting position towards breaking away from cooperation position when moving, be converted to from the direction that cooperates with friction clutch on the direction that cooperates with the friction clutch disengaging to the direction that applies propelling thrust on the drive disk assembly, and

Wherein, be provided with the cancellation elastic component, when executive component was in home position, this cancellation elastic element applied propelling thrust, was applied to propelling thrust on the drive disk assembly with the cancellation secondary resilient members.

3. clutch operating work-saving device as claimed in claim 1 is characterized in that friction clutch has clutch release mechanism, and

Wherein this drive disk assembly has the first clutch backguy that is connected on the executive component and is connected to second clutch backguy on the clutch release mechanism, and this drive disk assembly is arranged between this first clutch backguy and the second clutch backguy.

4. clutch operating work-saving device as claimed in claim 3 is characterized in that, when executive component was operated, the displacement of the displacement of first clutch backguy and second clutch backguy was equal to each other.

5. the clutch operating work-saving device that is used for clutch operating device, this clutch operating device has the friction clutch of band clutch spring, and executive component, this executive component is connected on the friction clutch through drive disk assembly, and can overcome the propelling thrust of clutch spring and M/C disconnects the moment of torsion transmission of friction clutch, this clutch operating work-saving device is arranged between executive component and the friction clutch, be used to reduce to operate this executive component and cooperate needed power, and comprise with the friction clutch disengaging:

Can with the synchronization-moving movable member of drive disk assembly,

Secondary resilient members, when executive component is breaking away from the direction cooperate when mobile with friction clutch, this secondary resilient members applies propelling thrust and is breaking away from mobile this movable member on the direction that cooperates with friction clutch, executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from simultaneously, executive component cooperates the starting position to locate to be subjected to the antagonistic force of clutch spring in disengaging, finishes with the disengaging of friction clutch at disengaging cooperation position place to cooperate;

Rotatable member is used for the propelling thrust of secondary resilient members is passed to movable member; And

Cam mechanism, this cam mechanism is arranged between movable member and the rotatable member, and when executive component moved to the disengaging cooperation position from breaking away from the midway location that cooperates between starting position and the disengaging cooperation position, this cam mechanism will remain in the fixed range from the propelling thrust that rotatable member is applied on the movable member.

6. clutch operating work-saving device as claimed in claim 5, it is characterized in that, this cam mechanism has cam groove and cam follower, this cam groove passes a formation in movable member and the rotatable member, this cam follower contacts with cam groove, and by another supporting in movable member and the rotatable member.

7. clutch operating work-saving device as claimed in claim 5 is characterized in that, this drive disk assembly has the second clutch backguy on first clutch backguy that is connected on the executive component and the clutch release mechanism that is connected to friction clutch, and

Wherein first and second clutch cables all are connected on the movable member.

8. clutch operating work-saving device as claimed in claim 5 is characterized in that, when executive component moves to from middle position when breaking away from cooperation position, cam groove limits secondary resilient members with cam follower and freely launches or shrink.

9. clutch operating work-saving device as claimed in claim 5, it is characterized in that, when executive component from break away to cooperate that the starting position returns return side and be positioned at home position the time, this secondary resilient members with direction that friction clutch cooperates on promote drive disk assembly, and when executive component cooperates starting position towards breaking away from cooperation position when moving from this home position through breaking away from, the direction that is applied to the propelling thrust on the drive disk assembly is converted to friction clutch from the direction that cooperates with friction clutch and breaks away from the direction that cooperates, and

Wherein be provided with the cancellation elastic component, when executive component was positioned at home position, this cancellation elastic component promoted rotatable member on the direction of the propelling thrust of cancellation secondary resilient members.

10. clutch operating work-saving device as claimed in claim 9, it is characterized in that, when executive component moves to when break away from cooperating the starting position from home position, the propelling thrust that clutch spring is applied on the movable member is zero, and rotatable member is subjected to cancelling the propelling thrust of elastic component.

11. clutch operating work-saving device as claimed in claim 10 is characterized in that, also comprises the stop part that is used to hold rotatable member when executive component is positioned at home position,

Wherein this stop part is promoted by the cancellation elastic component.

12. be contained in the clutch operating work-saving device in the clutch operating device, this clutch operating device has the friction clutch of band clutch spring, be connected to the drive disk assembly on the friction clutch, and executive component, this executive component is connected on the drive disk assembly, and when overcoming the propelling thrust operation of clutch spring, change the mated condition of friction clutch, this clutch operating work-saving device comprises:

Can with the synchronization-moving movable member of executive component;

Rotatable member;

Be used to apply propelling thrust to rotate the swung secondary resilient members of this rotatable member; And

Cam mechanism, this cam mechanism is arranged between movable member and the rotatable member, and the propelling thrust that is used for being applied on the rotatable member passes to movable member,

Wherein, when breaking away from when operating this executive component on the direction cooperates with friction clutch, secondary resilient members applies propelling thrust and is breaking away from mobile this movable member on the direction that cooperates with friction clutch, executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from simultaneously, executive component cooperates the starting position to locate to be subjected to the antagonistic force of clutch spring in this disengaging, finishes with the disengaging of friction clutch at disengaging cooperation position place to cooperate.

13. clutch operating work-saving device as claimed in claim 12, it is characterized in that, cam mechanism changes speed ratio, when this speed ratio breaks away from cooperation position for moving to from disengaging cooperation starting position when executive component, and the ratio between the rotating speed of rotatable member and the moving velocity of movable member.

14. clutch operating work-saving device as claimed in claim 13 is characterized in that, when executive component is in the speed ratio of speed ratio when being in the disengaging cooperation position when executive component when break away from cooperating the starting position.

15. clutch operating work-saving device as claimed in claim 13, it is characterized in that, when executive component cooperated the starting position with the midway location that breaks away between the cooperation position from break away from cooperating the starting position to move to break away from, the aviation value of speed ratio was greater than the aviation value when the speed ratio of executive component when this midway location moves to the disengaging cooperation position.

16. clutch operating work-saving device as claimed in claim 13 is characterized in that, when executive component cooperated the starting position to move to the disengaging cooperation position from breaking away from, cam mechanism reduced speed ratio gradually.

17. clutch operating work-saving device as claimed in claim 12, it is characterized in that, when executive component when break away from cooperating the starting position to move to break away from the midway location that cooperates between starting position and the disengaging cooperation position, this cam mechanism remains on the antagonistic force of clutch spring and the ratio that is applied between the load on the executive component in the fixed range.

18. clutch operating work-saving device as claimed in claim 12 is characterized in that, this movable member is a rotatable member.

19. clutch operating work-saving device as claimed in claim 12, it is characterized in that, cam mechanism has cam groove and cam follower, this cam groove passes one of them formation in movable member and the rotatable member, this cam follower contacts with cam groove, and by another supporting in movable member and the rotatable member.

20. clutch operating work-saving device as claimed in claim 12 is characterized in that, this secondary resilient members is a spring.

21. be contained in the clutch operating work-saving device in the clutch operating device, this clutch operating device has the friction clutch of band clutch spring, be connected to the drive disk assembly on this friction clutch, and executive component, this executive component is connected on the drive disk assembly, and change the mated condition of friction clutch when overcoming the propelling thrust operation of clutch spring, this clutch operating work-saving device comprises:

Can with the synchronization-moving movable member of executive component;

Rotatable member;

Can swing secondary resilient members, be used to apply propelling thrust and rotate this rotatable member; And

The propelling thrust transferring elements, this propelling thrust transferring elements is arranged between movable member and the rotatable member, and the propelling thrust that is used for being applied on the rotatable member by secondary resilient members passes to movable member,

Wherein, when breaking away from when operating this executive component on the direction cooperates with friction clutch, secondary resilient members applies propelling thrust and is breaking away from mobile this movable member on the direction that cooperates with friction clutch, executive component cooperates the starting position to move to the disengaging cooperation position from breaking away from simultaneously, executive component cooperates the place, starting position to be subjected to the antagonistic force of clutch spring in disengaging, finish with the disengaging of friction clutch and cooperates breaking away from the cooperation position place, reach

Wherein, when executive component cooperated the starting position to move to the disengaging cooperation position from breaking away from, this propelling thrust transferring elements changed speed ratio, and this speed ratio is the rotating speed of rotatable member and the ratio of the moving velocity of movable member.

22. be equipped with as friction clutch as described in the claim 1 to 21 any, the vehicle of executive component and clutch operating work-saving device.

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