CN1065190C - Variable-speed operating device for bicycle - Google Patents

Variable-speed operating device for bicycle Download PDF

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Publication number
CN1065190C
CN1065190C CN96120322A CN96120322A CN1065190C CN 1065190 C CN1065190 C CN 1065190C CN 96120322 A CN96120322 A CN 96120322A CN 96120322 A CN96120322 A CN 96120322A CN 1065190 C CN1065190 C CN 1065190C
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China
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aforementioned
idle pulley
towards
bicycle
speed
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Expired - Fee Related
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CN96120322A
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CN1150570A (en
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山根卓朗
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Shimano Inc
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Shimano Inc
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Abstract

A bicycle shift control device for controlling a gear shifter via a gear shift cable includes a winding member (50,110) supported for rotation around an axis (X) for winding the gear shift cable, a first control member (20,105) for rotating the winding member (50,110) in a first direction, and a second control member (80,120) mounted concentrically with the axis (X). The winding member (50,110) rotates in a second direction opposite the first direction in response to movement of the second control member (80,120) in the direction of the axis (X).

Description

Speed-changing operating device for bicycle
The present invention relates to a kind ofly operate the speed-changing operating device for bicycle of transmission system by the speed change cable wire, it has to batch body and aforementionedly to batch that body rotates facing one direction and with its handling device towards aforementioned shaft core direction displacement in order making in order to Wei Rao the axle core rotation of batching aforementioned speed change cable wire.
Be similar to the speed-changing operating device for bicycle of above-mentioned form, batch the structure of body around S. A. core rotary manipulation just like making shown in the Japanese kokai publication hei 2-270693 by control lever.No matter this device is speedup or deceleration, and two kinds of variable speed operations all are to carry out with shuttle-type control lever.Not isostructure therewith also has the utilization of employing to be made by the handling device of slide along the S. A. core that batches body and batches the structure that body rotates facing one direction.Speed-changing operation device with this structure, disclose as Japanese kokai publication sho 61-222889 communique, according to this communique, it is outer rim position in the both ends of the surface of batching body of ring bodies, be formed with respectively with hook tooth that decides shift position and the notch part that can temporarily maintain the position of batching body, be provided with and be configured to have the handling device that can slide along the S. A. core that batches body, this handling device is just like snap in the upside ratchet and the downside ratchet of the some of this hook tooth and notch part.Though batching body facing one direction rotation when speed change, this utilize shuttle-type control lever to carry out, but during the speed change of batching body towards the rotation of another direction, then be by the push device so that the upside ratchet snaps in the notch part, simultaneously downside ratchet and speed change location are broken away from ratchet, make according to the effect of return spring and to batch the body retrograde rotation, touch up to the upside ratchet till the stop wall of notch part, move according to the rising of handling device then, make the downside ratchet snap in speed change location and use hook tooth, make the action that the upside ratchet withdraws from the notch part simultaneously and be achieved.
This known speed-changing operation device, because of the upside ratchet and the downside ratchet of handling device is provided in a side of on the same member, so the pass, position is fixing each other, for the temporary engagement that maintains the position of batching body and releasing thereof and for the engagement of carrying out speed change, location and might not just be consistent the opportunity of releasing, this point just produces bad influence for variable speed operation program smoothly.
And, because of the aforesaid operations device is the form that adopts upside ratchet and downside ratchet to snap in from the outside on the diametric(al) of batching body, so speed-changing operation device single-piece structure, to become from the S. A. core that batches body partly to the outstanding shape in side, in design and the degree of freedom of installing problem is also arranged.
The purpose of this invention is to provide a kind of speed-changing operation device, it has by batching body makes towards the displacement of rotation on the shaft core direction and batches body at least towards the structure of one of them direction rotation, also have the position that can carry out not only can temporarily keeping batching body smoothly, but also can make batch body towards with the structure of a series of variable speed operation program of next gear stage cooresponding position rotation.
Another purpose of the present invention provides not to be had towards the side direction of the batching body structure of outstanding member partly.
For achieving the above object, the present invention takes following technical scheme:
A kind of speed-changing operating device for bicycle, it is to be used for operating transmission system by the speed change cable wire, it has: for batch aforementioned speed change cable wire, can batching body and, it is characterized by around axle core rotation for making the aforementioned body that batches make its handling device towards aforementioned shaft core direction displacement towards a direction rotation:
The aforementioned operation device is by can be towards the displacement and and can being constituted by the slide body towards the displacement of aforementioned axis core directions X with aforementioned idle pulley interlock around the idle pulley of aforementioned axis core displacement between the 1st position and the 2nd position of aforementioned shaft core direction,
And form geared assembly aforementioned batching between body and the idle pulley, just be used for, make aforementioned idle pulley and aforementionedly batch the body engaging, and both are broken away from the 2nd position in the 1st position of aforementioned idle pulley; Being formed with cam gear between aforementioned slide body and aforementioned idle pulley, being used for the 2nd position at aforementioned idle pulley, is the displacement around the aforementioned axis core of aforementioned idle pulley with the shift transformation on shaft core direction of aforementioned slide body.
Described speed-changing operating device for bicycle is characterized by:
Aforementioned to batch body and aforementioned slide body and aforementioned idle pulley be to make annular solid, and aforementioned body and aforementioned slide body and the aforementioned idle pulley of batching is that relative aforementioned axis core is with core and disposes.
Described speed-changing operating device for bicycle is characterized by:
Be provided with again one at aforementioned body and the aforementioned idle pulley of batching under disengaged position, in order to prevent aforementioned batch the body rotation batch the body holding device.
Described speed-changing operating device for bicycle is characterized by:
The aforementioned body holding device that batches is made of interior croze portion that is formed on the aforementioned inner peripheral surface that batches body and the outer croze portion that is formed on the outer peripheral face of aforementioned slide body.
Described speed-changing operating device for bicycle, it is characterized by: aforementioned cam gear is by the inclined cam surface of arranging the majority form on the circumferencial direction of aforementioned slide body, and can cooperate a plurality of inclination cam follower surfaces that form on the circumferencial direction of aforementioned idle pulley of aforementioned inclined cam surface to be constituted.
Described speed-changing operating device for bicycle, it is characterized by: aforementioned geared assembly is by being constituted arranging a plurality of tooth portions that are stuck that arrangement forms on a plurality of engaging tooth portions that form and the circumferencial direction at aforementioned idle pulley on the aforementioned circumferencial direction that batches body, aforementioned engaging, the shape that is stuck tooth portion are to be formed, can to utilize the aforementioned swing offset of body on aforementioned speed change cable wire take-up direction that batch, and make at the aforementioned the 1st locational aforementioned idle pulley towards aforementioned the 2nd position displacement.
Described speed-changing operating device for bicycle is characterized by: aforementioned body and aforementioned slide body and the aforementioned idle pulley of batching is to be supported on the common tube axis body.
Described speed-changing operating device for bicycle is characterized by: be provided with one again and aforementioned idle pulley can be pushed away device by force towards what aforementioned the 1st position bullet pushed away.
Speed-changing operating device for bicycle of the present invention, batch rotating towards a direction of speed change cable wire in order to be used in around the body that batches of axle core rotation, handling device towards aforementioned shaft core direction displacement, be by can be between the 1st position on the aforementioned shaft core direction and the 2nd position displacement and can be around the idle pulley of aforementioned axis core displacement, with can be constituted towards the slide body of aforementioned shaft core direction displacement with aforementioned idle pulley quick-action, and, aforementioned batch body and idle pulley between form one and be used for making aforementioned idle pulley and aforementionedly batch the body engaging in the 1st position of aforementioned idle pulley, and both are broken away from the 2nd position.Geared assembly forms one between aforementioned slide body and aforementioned idle pulley, be used in the 2nd position of aforementioned idle pulley the shift transformation on shaft core direction of aforementioned slide body become the cam gear of aforementioned idle pulley around the displacement of aforementioned axis core.
According to above-mentioned speed-changing operation device, handling device is the slide body that slides by along the axle core, with by geared assembly and can with batch body and engage, two parts of the idle pulley that breaks away from constitute, displacement vertically according to the slide body can make the idle pulley that has moved to the 2nd position break away from from batching body, and by effect with the cam gear of the swing offset of slide body displacement in the axial direction becoming idle pulley, this idle pulley with rotate to and the cooresponding engagement position of batching body of next shift position, around the ground revolution of axle core, then owing to, make to batch to be positioned at new gear stage position in the preceding relative rotation of batching body and the complete engagement of idle pulley.
The present invention has positive effect:
Because above-mentioned handling device is made of two parts, thereby be used for and batch the engagement between the body, the longitudinal travel of disengaging, swing offset to the position of next gear stage, and, be used for and batch a series of variable speed operation program of the ingear again of body, can correctly and successfully carry out towards axial upstream shift.
Following with reference to accompanying drawing, describe embodiments of the invention in detail:
Fig. 1 is the part section lateral plan of the embodiment of demonstration speed-changing operation device of the present invention.
Fig. 2 is the operating state of the speed-changing operation device of displayed map 1, and wherein: (A) being the section lateral plan, (B) is geared assembly, cam gear and the expansion scheme drawing that batches the body holding device.
Fig. 3 is the operating state that the speed change of displayed map 1 is made device, wherein: (A) be the section lateral plan, (B) for geared assembly, cam gear, batch the expansion scheme drawing of body holding device.
Fig. 4 is the operating state of the speed-changing operation device of displayed map 1, wherein: (A) be the section lateral plan, (B) for geared assembly, cam gear, batch the expansion scheme drawing of body holding device.
Fig. 5 is the operating state of the speed-changing operation device of displayed map 1, wherein: (A) be the section lateral plan, and (B) for geared assembly, cam gear, batch the expansion scheme drawing of body holding device.
Fig. 6 is the operating state of the speed-changing operation device of displayed map 1, wherein:
(A) be the section lateral plan,
(B) for geared assembly, cam gear, batch the expansion scheme drawing of body holding device.
Fig. 7 is the front elevation of the 2nd member that batches body watched from the arrow A of Fig. 1.
Fig. 8 is the front elevation of the 2nd member that batches body watched from the arrow B of Fig. 1.
Fig. 9 is the front elevation of the slide body watched from the arrow C of Fig. 1.
Figure 10 is the front elevation of the idle pulley of the section that comprises an axis body watched of the arrow D from Fig. 2.
Figure 11 is the part section lateral plan of tube axis body.
A best example of the present invention shows that as Fig. 1 batching body 10 and slide body 20 and idle pulley 30 is to do to circularize, and with the aforementioned 30 relative core X of body 10 and aforementioned slide body 20 and aforementioned idle pulley that batch to dispose with core.According to this formation, batch body 10 and slide body 20 and idle pulley 30, can outer embedding be bearing on the axis body 70, the single-piece of speed-changing operation device constitutes, will more simple and assembling easily.
Under aforementioned disengaged position of batching body 10 and aforementioned idle pulley 30, in order to prevent the aforementioned body 10 that batches, for example be subjected to the speed change object transmission system etc. return spring etc. effect and rotation phenomenon apace takes place without a break, though batching body holding device 60 with setting is advisable, but this body holding device 60 that batches, be as Fig. 7 and shown in Figure 9, can constitute by interior croze portion 11 that is formed on the aforementioned inner peripheral surface that batches body 10 and the outer croze portion 21 that is formed on slide body 20 outer peripheral faces.The form of slide body 20 shown in Figure 9, its outer croze portion 21 has 8 teeth, and the pitches with 45 degree distribute in a circumferential direction.The form of batching body 10 shown in Figure 7, croze portion 11 has 24 teeth or recess in it, and the pitch with 15 degree distributes in a circumferential direction.Slide body 20, be provided with can with the intermeshing ditch of croze portion 71 (Figure 11) of the outer peripheral face of tube axis body 70 just in croze portion 23, though can but can not be towards the peripheral direction rotation of tube axis body 70 towards moving axially.And batching the rotation of body 30 around tube axis body 70, is according to the effect of the idle pulley 30 of explanation later on, and the pitch that is defined as to be scheduled to limits 15 degree units at this with it.Therefore, the outer croze portion 21 of aforementioned interior croze portion 11 of batching body 10 and slide body 20, be for slide body 20 is broken away from and aforementioned the engaging of body 10 and idle pulley 30 that batch, and when aforementioned interior croze portion 11 of batching body 10 moves axially, be positioned at position always with keeping engagement.
Geared assembly 40, be by shown in Figure 8 with the perpendicular face of the aforementioned axle core X that batches body 10 on along the circumferential direction arrange 24 engaging tooth portions 12 that form, with shown in Figure 10 with the perpendicular face of the axle core X of aforementioned idle pulley 30 on along the circumferential direction arrange 24 of forming and be stuck that tooth portion 31 constituted, this engaging and be stuck tooth portion, promptly can finely understand from the combination of Fig. 2 (B) and Fig. 8 and Figure 10, formation is by the added swing offset of body 10 on the speed change cable wire direction of batching that batch of M/C, makes idle pulley 30 in aforementioned the 1st position towards the dip plane of aforementioned the 2nd position displacement 12a and 31a.That is, will batch body 10 when take-up direction is rotated, its rotational force will be conveyed to the dip plane 31a of the tooth portion that is stuck of idle pulley 30 from the dip plane 12a of engaging tooth portion 12, push idle pulley 30 to the 2nd position, and remove binding by geared assembly 40.If with idle pulley 30 be made into utilize annual spring 4 with it when suppress the 1st position, when carrying out will batch body 10 towards the rotary manipulation of take-up direction the time, every interval 15 degree units will make the people hear has " card is taken " one.
Can be expressly understood from the combination of Fig. 2 (B) and Fig. 8 and Figure 10, cam gear 50 is by arranging 12 inclined cam surfaces 22 that form on the circumferencial direction of idle pulley 30 side end outer peripheral faces leaning on of aforementioned slide body 20 and can cooperating 12 the inclination cam follower surfaces 32 that form by arrangement on the circumferencial direction of slide body 20 side inner peripheral surfaces at aforementioned idle pulley 30 of these inclined cam surfaces to constitute.The shape of these two dip plane is configured to: by making aforementioned idle pulley 30 towards aforementioned the 2nd position move operation, by the inclination cam follower surface 32 that contacts with inclined cam surface 22, further make aforementioned idle pulley 30 move to aforementioned the 2nd position, further make the move operation of aforementioned slide body 20 again, the idle pulley 30 of position on the direction of principal axis stop position rotated towards take-up direction.Because this rotation of idle pulley 30, aforementioned engaging tooth portion 12 of batching body 10 will come the one corresponding position, position that is stuck tooth portion 31 with the next one of aforementioned idle pulley 30.Next, when slide body 20 being returned to aforementioned the 1st position, idle pulley 30 can be towards the rotation of backrush direction, till engaging tooth portion 12 and next are stuck tooth portion 31 and intermesh.This rotation towards the backrush direction of idle pulley 30 will be according to aforementioned action of batching body holding device 60, and can all positively carry out with a pitch amount of geared assembly 40 at every turn.For the rotation that allows aforementioned idle pulley 30 to be scheduled to, as shown in figure 10, be formed on each recess of the inboard croze portion 71 on the inner peripheral surface of aforementioned idle pulley 30, be width, be provided with the rotation play of about 5 degree at circumferencial direction with respect to per 1 tooth of the croze portion 71 of the outer peripheral face that is located at an axis body 70.
In best example of the present invention, to be formed on the inclined cam surface that is used for aforementioned cam gear 50 22 on the slide body 20 on the one hand, with can with croze portion 23 in croze portion 71 ingears of aforementioned tube axis body 70 be positioned at the perpendicular summary of axle core X with on the one side, on the other hand, to be formed on the tooth portion 31 that is stuck that is used for geared assembly 40 on the idle pulley 30 again, be positioned at the perpendicular summary identical faces with axle core X with the inclined cam surface 32 that is used for aforementioned cam gear 50, this practice has contribution for the axial dimension that dwindles slide body 20 and idle pulley 30.And, be used for aforementioned interior croze portion 11 of batching body holding device 60, be used for the engaging tooth portion 12 of geared assembly 40, also be located at when forming barrel-contoured interior all side of batching body 10, as shown in Figure 1, can and batch in the body 10 formed annular spaces at the tube axis body 70 of the common fulcrum that batches body 10 and slide body 20 and idle pulley 30, accommodate at least one part of all and slide body 20 of idle pulley 30.For this purpose, as shown in figure 11, end at tube axis body 70 is provided with the radially blade of a sword portion 72 of foreign side's extension of court, be formed with in this blade of a sword portion 72 in order to insert the through hole 73 towards axially extended extension 24 of logical aforementioned slide body 20, this through hole 73 distributes with the pitch of 90 degree in a circumferential direction.And batch body 10, also away from this side's of slide body 20 end, be provided with the diapire 13 that extend the side in the direction of footpath, be provided with the central through hole 14 that can insert logical tube axis body 70 at this diapire 13.Moreover, this batches body 10, reason based on fit on, be to constitute the 1st member 10a and the 2nd these two parts of member 10b, the former comprise aforementioned diapire 13 and with the operation cable wire 10 connecting part 15, croze portion 11 and engaging device 40 in the latter forms, and be provided with in order to link the croze 16 of the 1st member 10a and the 2nd member 10b.In view of the above, this speed-changing operation device, by to tube axis body 70 as matrix, according to the 1st member 10a and the 2nd member 10b that batch body 10, slide body 20, the order of idle pulley 30 can be assembled at an easy rate towards axial insertion.
Fig. 1 shows speed-changing operating device for bicycle 1 of the present invention, on the handle bar 100 of the bicycle that shows its section with the single-point line, uses band body 2 being tightened.This speed-changing operation device 1 basically, is by batching body 10, slide body 20, and idle pulley 30, a tube axis body 70 constitutes.Tube axis body 70, be to have the hole that can be fastened on the section of the having portion on the direction of footpath set on the band body 2, and has one, the inner peripheral surface that possesses the axle core X of the axostylus axostyle 2a that the foreign side that can outer setting-in be located at the radius vector direction extends, utilize nut 2b to fix this axis body 70, outside being, having on the outer peripheral face of core X of this axis body 70 be embedded with slide body 20, idle pulley 30, tube axis body 70.At this moment, a slide body 20 and a tube axis body 70 are by being located at the interior croze portion 23 on the slide body 20 and being located at the engaging of the outer croze 71 on the axis body 70, and connect to can not rotate relatively but can be towards axially displaced.With respect to this, can find out from Figure 10, idle pulley 30 and tube axis body 70, though be to link together according to the engaging that is located at the interior croze portion 33 on the idle pulley 30 and is located at the outer croze portion 71 on the axis body 70, but because of on the circumferencial direction of its engaging, being provided with the play of about 5 degree, so allow idle pulley 30 with respect to tube axis body 70 about 5 degree rotations around axle core X, simultaneously can be towards axially displaced.Batch body 10, can be along the outer peripheral face of tube axis body 70, that is in the rotation of the outside of axle core X.
Batching body 10, is to be connected by operation cable wire 3 and not shown change-speed box, by making operating body 10 towards the direction rotation of batching operation cable wire 3, will operate cable wire 3 by tractive, and change-speed box will be switched by the direction towards for example speedup.Anti-, if make the direction rotation of operating body 10 towards releasing operation cable wire 3, operation cable wire 3 will become slack, and change-speed box can be according to the effect of return spring, and switches towards deceleration direction.
Batch the rotation of body 10 towards take-up direction, the discoid indexing pate 5 that is rotatably supported on the pin 2c that gives prominence to respect to aforementioned axostylus axostyle 2a from the side of band body 2 by rotary manipulation carries out with meeting at right angles.For this reason, between indexing pate 5 and tube axis body 70, be provided with oblique gear mechanism 80.
Batch the rotation towards release direction of body 10, to describe in detail in the back, though by being undertaken by slide body 20 operations of depressing of the block 6 that is contained in its leading section, but, slide body 20 displacement in the axial direction of this moment will be transformed to swing offset by idle pulley 30 and is conveyed to and batches body 10.For this reason, between slide body 20 and idle pulley 30, be provided with cam gear 50.In addition, batch body 10 because of being subjected to the effect of return spring etc. when preventing variable speed operation, and the so-called speed-changing mechanism without a break that prevents that rotates to terminal location at a heat, slide body 20 and batch body 10 between, be provided with and can batch body holding device 60 what batch that body 10 temporarily maintains.
To batch the steady job with respect to tube axis body 70 of body 10 in desired position, be undertaken by idle pulley 30, for this reason, batch body 10 and idle pulley 30 between, be provided with engaging device 40.
As shown in Figure 1, aforementioned engaging device 40, cam gear 50, batch body holding device 60, be to be positioned at osed top annulus in fact, this space is produced by the package assembly of batching body 10 and having a tube axis body 70 of the blade of a sword portion 72 of extending towards foreign side radially with diapire 13 of extending in radial inward, so, can become desirable structure from antisoiling viewpoint.
Below, according to Fig. 2 to Fig. 6, the effect the when variable speed operation of slide body 20 of this speed-changing operation device 1 is described.
In each figure of Fig. 2 to Fig. 6, be to batch body 10, slide body 20 (A), idle pulley 30 shows with cross sectional drawing at the state in each effect stage, and (B) is with engaging device 40, cam gear 50, batch body holding device 60 and act on the state in stage, show to launch scheme drawing at each.
Fig. 2 is the stage that shows before the variable speed operation, and batching body 10 is to utilize idle pulley 30 via engaging device 40, and what overcome return spring etc. is positioned at preposition towards the rotational force of arrow R direction.Slide body 20 is to be subjected to the bullet thrust of spring and to be positioned at the 1st position as the initial position.
Fig. 3 shows, slide body 20 is moved towards axial (being towards right-hand on drawing), the interior croze portion 11 of position holding device 60 and outer croze portion 21 begin interlocks, and the stage of the inclined cam surface 22a of cam gear 50 and the mutual butt of inclination cam follower surface 31a.
Fig. 4 shows, to block a shot and 5 depress more and make slide body 20 more towards moving axially, at this moment, under inclined cam surface 22 and the inclination cam follower face 32 mutual butt states, make idle pulley 30 overcome the strong thrust of spring 4, move to terminal location (the 2nd position) towards axially (being) on drawing, the engaging tooth portion 12 of engaging device 40 and be stuck the stage that the engaging of tooth portion 31 has broken away from towards right-hand.In this stage,,, feasiblely batch body 10 and temporarily kept by slide body 20 still by the interlock of the interior croze portion 11 of position holding device 60 and outer croze portion 21 though the engaging tooth portion 12 of engaging device 40 and the engaging that is stuck tooth portion 31 break away from.
Fig. 5 shows, to block a shot and 6 be pressed into more, and make be conveyed to slide body 20 axially on the some of displacement force, the periphery of the axle core X that is transformed at idle pulley 30 by the inclined cam surface 22 of cam gear 50 and inclination driven surface 31 makes the stage of idle pulley towards the rotation of arrow F direction towards the rotational force of arrow F direction.According to the rotation of this idle pulley 30, the engaging tooth portion of engaging device 40 12 and be stuck tooth portion 31 and will be moved to the position of next tooth mutually.
Fig. 6 shows, according to removing to blocking a shot 6 pressing operation, slide body 20 is moved towards the 1st position, in view of the above, the interlock of the interior croze portion 11 of position holding device 60 and outer croze portion 21 will break away from, and while idle pulley 30 will be by spring 4 in the axial direction toward slide body 20 (being towards left on drawing) the mobile stage.Batching body 10 according to the interlock meeting disengaging of the position holding device of realizing in this stage 60 will rotate towards arrow R direction, and idle pulley 30 moving at axially past left, be stuck tooth portion 31 and snap-fit into engaging tooth portion 12 and make, at last, batch body 10 and will finish 1 section speed change work on arrow R direction, the speed change of for example slowing down.
Reciprocal speed change, speedup speed change for example, though be by with indexing pate 5 rotary manipulations, carry out towards the rotation of arrow F direction so that batch body 10, but, be towards axially right-hand because of idle pulley 30 this moment, that is overcome the bullet thrust of spring 4 and move towards the direction that the interlock of engaging device 40 breaks away from, so will be as the rotation of batching body 10 of reaching the stage of each 1 tooth as the ratchet device.For this reason, the engaging tooth portion 12 of engaging device 40 and be stuck tooth portion 32, be to form to make the rotation towards arrow F direction of batching body 10, can cause idle pulley 30 the disengaging interlocking pattern axially on displacement, just dip plane and vertical surface strike a bargain for the shape of heavily covering.

Claims (8)

1, a kind of speed-changing operating device for bicycle, it is to be used for operating transmission system by the speed change cable wire, it has: for batch aforementioned speed change cable wire, can batching body (10) and, it is characterized by around axle core (X) rotation for making the aforementioned body (10) that batches rotate towards direction and make its handling device towards the displacement of aforementioned axis core (X) direction:
The aforementioned operation device is by can be towards the displacement and and can being constituted by the slide body (20) towards the displacement of aforementioned axis core (X) direction with aforementioned idle pulley (30) interlock around the idle pulley (30) of aforementioned axis core (X) displacement between the 1st position and the 2nd position of aforementioned axis core (X) direction
And, form geared assembly (40) aforementioned batching between body (10) and the idle pulley (30), be used in the 1st position of aforementioned idle pulley (30), aforementioned idle pulley (30) and the aforementioned body (10) that batches are engaged, and both are broken away from the 2nd position; Between aforementioned slide body (20) and aforementioned idle pulley (30), be formed with cam gear (50), being used in the 2nd position of aforementioned idle pulley (30), is the displacement around aforementioned axis core (X) of aforementioned idle pulley (30) with the shift transformation on axle core (X) direction of aforementioned slide body (20).
2, speed-changing operating device for bicycle as claimed in claim 1 is characterized by:
Aforementioned to batch body (10) and aforementioned slide body (20) and aforementioned idle pulley (30) be to make annular solid, and the aforementioned body (10) and aforementioned slide body (20) and aforementioned idle pulley (30) of batching is to be with core with respect to aforementioned axis core (X) to dispose.
3, speed-changing operating device for bicycle as claimed in claim 1 or 2 is characterized by:
Be provided with again one at aforementioned body (10) and the aforementioned idle pulley (30) of batching under disengaged position, aforementionedly batch body (10) rotation and batch body holding device (60) in order to preventing.
4, speed-changing operating device for bicycle as claimed in claim 3 is characterized by:
The aforementioned body holding device (60) that batches is made of interior croze portion (11) that is formed on the aforementioned inner peripheral surface that batches body (10) and the outer croze portion (21) that is formed on the outer peripheral face of aforementioned slide body (20).
5, as each the described speed-changing operating device for bicycle among the claim 1-2, it is characterized by: aforementioned cam gear (50) is a plurality of inclined cam surfaces (22) forms by arranging on the circumferencial direction of aforementioned slide body (20), and a plurality of inclination cam follower faces (32) formation that can cooperate the circumferencial direction at aforementioned idle pulley (30) of aforementioned inclined cam surface (22) to form.
6, as any one the described speed-changing operating device for bicycle among the claim 1-2, it is characterized by: aforementioned geared assembly (40) is by arranging a plurality of engaging tooth portions (12) that form and a plurality of tooth portions (31) that are stuck that arrangement forms on the circumferencial direction of aforementioned idle pulley (30) constituted on the aforementioned circumferencial direction that batches body (10), aforementioned engaging, the shape that is stuck tooth portion is to be formed, can utilize the aforementioned swing offset on aforementioned speed change cable wire take-up direction that batches body (10), make at the aforementioned the 1st locational aforementioned idle pulley (30) towards aforementioned the 2nd position displacement.
7, as each the described speed-changing operating device for bicycle among the claim 1-2, it is characterized by: aforementioned body (10) and aforementioned slide body (20) and the aforementioned idle pulley (30) of batching is to be supported on the common tube axis body (70).
8, as each described speed-changing operating device for bicycle among the claim 1-2, it is characterized by: be provided with one again and aforementioned idle pulley (30) can be pushed away device (4) by force towards what aforementioned the 1st position bullet pushed away.
CN96120322A 1995-10-11 1996-10-11 Variable-speed operating device for bicycle Expired - Fee Related CN1065190C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP26265495A JP3568292B2 (en) 1995-10-11 1995-10-11 Speed change device for bicycle
JP262654/95 1995-10-11
JP262654/1995 1995-10-11

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CN1150570A CN1150570A (en) 1997-05-28
CN1065190C true CN1065190C (en) 2001-05-02

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20040106A1 (en) * 2004-05-06 2004-08-06 L A M S R L COMMAND TO DRIVE A CHANGE FOR BICYCLES.

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CN2217567Y (en) * 1993-12-28 1996-01-17 株式会社岛野 Speed-changing operating device for bicycle

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DE3200562A1 (en) * 1982-01-12 1983-07-21 Stephan 8700 Würzburg Lutze Indexing means for the individual gears with respect to the front derailleur for bicycles
CN2217567Y (en) * 1993-12-28 1996-01-17 株式会社岛野 Speed-changing operating device for bicycle

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CN1150570A (en) 1997-05-28
JPH09104388A (en) 1997-04-22
JP3568292B2 (en) 2004-09-22

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