Summary of the invention
The object of the invention is to provide a kind of bicycle selector of avoiding sliding tooth or latch, especially enters to keep off ratchet and is not only when engaged transmission tooth and moves, and in dispose procedure, enters to keep off ratchet and can serve as location ratchet and play maintenance effect.Make the ratchet failure-free that enters to keep off of bicycle selector realize and multistagely enter gear, and reduced the supplies consumption of entering to keep off ratchet and location ratchet.
For achieving the above object, the present invention takes following technical scheme:
Bicycle selector, is characterized in that described bicycle selector comprises: base component; Described base component has the first pivot axis; Enter to keep off ratchet, described in enter to keep off ratchet and install movingly with respect to described base component; Ratchet component, described ratchet component is rotatably mounted around this first pivot axis with respect to described base component, described in enter to keep off to enter to keep off described in ratchet response ratchet operating winding and described ratchet component join merge make described ratchet component on coiling direction around described the first pivot axis rotation; Location ratchet, described location ratchet is installed between holding position and releasing position movingly with respect to described base component, when described location ratchet is during in described holding position, described location ratchet stops described ratchet component around described the first pivot axis, to rotate in release direction, when described location ratchet is during in described releasing position, described location ratchet discharges described ratchet component to rotate in described release direction;
Release component, described release component is installed movingly with respect to the second pivot axis of described the first pivot axis skew, and described location ratchet responds the releasing operation of described release component and makes described location ratchet from described holding position, move to described releasing position; Control member, described control member responds the releasing operation of described release component, with respect to described base component, between primary importance and the second place, installs to rotatable motion;
When described control member is arranged on described primary importance, described, enter to keep off ratchet and ratchet component and depart from, and contact with control member, described in described control member operationally stops, enter to keep off ratchet and rotate described ratchet component, described location ratchet is in described holding position, and described location ratchet stops described ratchet component around described the first pivot axis, to rotate in release direction;
When described control member is arranged on the described second place, described, enter to keep off ratchet and ratchet component is intermeshing, and be separated with control member, described location ratchet responds the releasing operation of described release component and makes described location ratchet in described releasing position, and described location ratchet discharges described ratchet component to rotate around described the first pivot axis in described release direction.
Wherein, the 3rd pivot axis that described control member rotates or is offset with respect to described the first pivot axis around described the first pivot axis with respect to base component rotates.
Wherein, described base component comprises lower supporting plate, and control member comprises crooked connecting portion, between the curled portion on this bending connecting portion and lower supporting plate, spring is set.
Wherein, described release component comprises release location division and controls location division, described release location division is used for promoting location ratchet and rotates, and the release component junction surface of described control location division and control member is intermeshing in order to promote control member around described the first pivot axis or described the 3rd pivot axis rotation.
Wherein, described the 3rd pivot axis overlaps with described the second pivot axis
Bicycle selector provided by the present invention, by control member, from primary importance, towards the second place, rotate, thereby make to be not only and to enter gear operation when the engaged transmission tooth into gear ratchet, and in dispose procedure, enter to keep off ratchet and can serve as location ratchet and play maintenance effect.
The specific embodiment
Selected embodiment of the present invention describes referring now to accompanying drawing.From present disclosure, it will be apparent to one skilled in the art that the following description of the embodiment of the present invention is only supplied to exemplary illustration, and also unrestricted as the present invention of appended claim and equivalent way restriction thereof.
The selector 10 that the invention provides an embodiment, selector 10 is arranged on Handlebar of bicycle, and selector 10 is operationally connected in front chain shifter or rear derailleur by operation cable.In the illustrated embodiment, selector 10 has formed the bicycle part operating device of the gear of the bicycle that is preferably used for shifting gears.
Preferably, as shown in Figure 1, selector 10 comprises the shell 20 for covering internal part, and for selector 10 being fixed on to the handgrip fixture 22 on handgrip.Handgrip fixture 22 is preferably by for example metal manufacture and be configured to be fastened on handgrip by screwing bolt.Shell 20 preferably provides to receive the cable setting nut of gear shift operation cable.Cable setting nut is usual structure, therefore will no longer it be carried out to detailed discussion and/or diagram.
With reference now to Fig. 2 to Fig. 4,, bicycle part operating device or selector 10 comprise that base component 30, tensioning control member 32, ratchet component 34, line tighten up member 36, location ratchet 38, enter to keep off ratchet 40, release component 42 and control member 44 substantially.Line tightens up member 36 and is connected in ratchet component 34, makes ratchet component 34 and line tighten up member 36 and responds as explained below the motion of tensioning control member 32 or release component 42 and move together with the first pivot axis A as unit.
Shell 20 (Fig. 1) is fixed on base component 30 with usual way (such as screw tightening, fastening assembling etc.), and tensioning control member 32, release component 42 are given prominence to from shell 20.
In the illustrated embodiment, selector 10 has a plurality of drive ranges, tensioning control member 32 installs to carry out the operating winding of tension inner wire movingly with respect to base component 30, release component 42 installs to carry out with respect to base component 30 releasing operation that discharges inner wire movingly.Shell 20 can be on demand and/or wish by duroplasts or metal, formed.The ad hoc structure of shell 20 is not main, therefore at this, it is not described in detail and/or is illustrated.
As shown in Figures 2 to 5, base component 30 comprises lower supporting plate 46, upper backup pad 48 substantially, at main pivot shaft 50 and the nut 52 of stay bearing plate 46 and 48 extensions, and wherein, main pivot shaft 50 has the main pivot shaft axis overlapping with the first pivot axis A.Shell 20, handgrip fixture 22 and stay bearing plate 46 and 48 basic comprisings support or the stationary member of selector 10.Stay bearing plate 46 and 48 is preferably rigid metal plate.Stay bearing plate 46 and 48 is fixed together by main pivot shaft 50, and main pivot shaft 50 is preferably bolt, and nut 52 is twisted in the top.
Main pivot shaft or bolt 50 and nut 52,52a are fixed on tensioning control member 32 on base component 30, as described below, for tensioning control member 32, with respect to base component 30, move pivotly.Lower supporting plate 46 has pivot hole 46a, and it receives the first of main pivot shaft 50, and upper backup pad 48 has pivot hole 48a, and it receives the second portion of main pivot shaft 50.
Pivot pin 54 is fixed between stay bearing plate 46 and 48.Pivot pin 54 is supporting and location ratchet 38 between stay bearing plate 46 and 48 pivotly.The lower end of pivot pin 54 extends through the opening 46b on lower supporting plate 46, and the upper end of pivot pin 54 extends through the opening 48b on upper backup pad 48.Every one end of pivot pin 54 all can have groove in order to receive C shape retaining clip 56.
Preferably, main pivot shaft 50 extends perpendicular to stay bearing plate 46 and 48.Main pivot shaft 50 defines the first pivot axis A of tensioning control member 32, ratchet component 34, control member 44.In other words, tensioning control member 32, ratchet component 34 and control member 44 all with respect to base component 30 movingly (pivotly) be arranged on the single coincidence axis of corresponding the first pivot axis A.
Tensioning control member 32 is installed movingly with respect to base component 30.As shown in Figure 4 and Figure 5, preferably, tensioning control member 32 is held the main mounting hole 32a with the smaller diameter portion that receives main pivot shaft 50 within it.Like this, tensioning control member 32 is pivotably mounted on the main pivot shaft 50 of the first pivot axis A that defines ratchet component 34.As described below, tensioning control member 32 is with respect to base component 30 pivotables, to move at the first rotation direction R1 (being inner wire coiling direction), to carry out inner wire operating winding.
In this embodiment, tensioning control member 32 is the bar of trigger type preferably, and it is biased (reset) by retracing spring 60 on the second rotation direction R2 (being inner wire release direction).Retracing spring 60 is torsion springs, and it has formed biasing element.Retracing spring 60 is operationally connected between tensioning control member 32 and lower supporting plate 46, with by tensioning control member 32 at the second rotation direction R2 (rotation direction R1 is contrary) upper offset (reset).Retracing spring 60 has the first end 60a in the hole 46c that is arranged on lower supporting plate 46 and is arranged on the second end 60b in the hole (not having diagram) on tensioning control member 32.Retracing spring 60 makes 32 biasings of tensioning control member to dead position like this.On the surface that faces down of lower supporting plate 46, provide packing ring 62, with when main pivot shaft 50 and nut 52 are tightened, prevent that retracing spring 60 is extruded between tensioning control member 32 and lower supporting plate 46.
Tensioning control member 32 also has the hole 32d that receives pivot pin 64.Pivot pin 64 support pivotly thereon enter to keep off ratchet 40.In other words, entering to keep off ratchet 40 is arranged on tensioning control member 32 therewith to move.Especially, every one end of pivot pin 64 all can have the groove 64a that receives folder 66, in order to pivot pin 64 be attached in regularly on tensioning control member 32 and will enter to keep off ratchet 40, remains on pivot pin 64.As an alternative, pivot pin 64 can be otherwise (such as riveting is fixed or force fit) be attached on tensioning control member 32.Provide retracing spring 70 with to closing and setover into gear ratchet 40 with the side edge of ratchet component 34.Retracing spring 70 has the coiling part being arranged on pivot pin 64.The first shank of retracing spring 70 divides 70a to be bonded in the hole (not having diagram) in tensioning control member 32.The second shank of retracing spring 70 divides 70b and enters to keep off ratchet 40 and engage.Like this, retracing spring 70 has formed the biasing element that enters to keep off ratchet 40.
The structure of ratchet component 34.Ratchet component 34 is by the material the being applicable to flat rigid plate that for example metal is manufactured.The mounting hole 34a of ratchet component 34 structures receives the main pivot shaft 50 through wherein.Ratchet component 34 is rotatably mounted around the first pivot axis A with respect to base component 30.Ratchet component 34 is biased by flat wind spring 74 on the second rotation direction R2, and flat wind spring 74 operationally arranges and tightens up online between member 36 and upper backup pad 48.Flat wind spring 74 has formed the biasing element that promotes ratchet component 34 on the second rotation direction R2.Line tightens up member 36 protrusion position 36a and is arranged in the spline otch 34b of ratchet component 34.Because ratchet component 34 and line tighten up member 36, be linked together and using as unit rotational, the bias force of flat wind spring 74 passes to line from ratchet component 34 and tightens up member 36.Flat wind spring 74 has the first end in the hole (not having diagram) being arranged in upper backup pad 48 and the second end in the hole (not having diagram) of tightening up online in member is set.Flat wind spring 74 preloads to promote ratchet component 34 and line tightens up member 36 on the second rotation direction R2.
Line tightens up the structure of member 36.It is duroplasts or the hard wares that are attached in the inner wire of gear shift operation cable that line tightens up member 36, and it is in order to tension and discharge inner wire to carry out gear shift operation.As shown in Fig. 3, Fig. 5, line tightens up member and has stair-stepping thorax, and it has formed line attachment structure in order to by the blank area attachment of gear shift operation cable thereon.
Location ratchet 38 responds into the inner wire releasing operation of gear ratchet 40 and installs movingly between holding position and releasing position with respect to base component 30.Especially, when locating ratchet 38 in holding position, location ratchet 38 stops ratchet components 34 to rotate around the first pivot axis A at the second rotation direction R2 (being inner wire release direction).On the other hand, when locating ratchet 38 in releasing position, location ratchet 38 discharges ratchet components 34 above to rotate at the second rotation direction R2 (being inner wire release direction).Location ratchet 38 has location ratchet crown 38a, and location ratchet crown 38a is through the opening 46f on lower supporting plate 46.
Location ratchet 38 is pivotably mounted on the pivot pin 54 of lower supporting plate 46.Like this, location ratchet 38 is installed around the pivot axis of the first pivot axis A skew with ratchet component 34 pivotly with respect to base component 30.As shown in Figure 5, the inner wire releasing operation of location ratchet 38 response tensioning control members 32 with respect to base component 30 from holding position component capable of movable installed to releasing position.Torsion spring 76 provides on pivot pin 54 and with offset located ratchet 38, it is contacted with the neighboring of ratchet component 34.The coiling of spring 76 partly provides on pivot pin 54.The first shank of spring 76 divides hook on upper plate 48, and the second shank of spring 76 divides hook on the ratchet 38 of location.
Enter to keep off the structure of ratchet 40, enter to keep off ratchet 40 and install movingly with respect to base component 30.During inner wire operating winding, enter to keep off ratchet 40 and operationally join to merging with ratchet component 34 and make its motion.During inner wire releasing operation, enter to keep off ratchet 40 and operationally join to merging with control member 44 and make its motion.As mentioned above, enter to keep off on the pivot pin 64 that ratchet 40 is pivotably mounted on tensioning control member 32.Like this, entering to keep off ratchet 40 installs around the pivot axis of the first pivot axis A skew with ratchet component 34 pivotly with respect to base component 30.Entering to keep off ratchet 40 has into gear ratchet crown 40a, when the inner wire operating winding that enters to keep off ratchet 40 response tensioning control members 32 is during with respect to base component 30 motion, the driving cog 34e that enters to keep off ratchet crown 40a and ratchet component 34 engages so that ratchet component 34 rotates around the first pivot axis A along the first rotation direction R1 (being inner wire coiling direction).In other words, the merging of joining of the operating winding that enters to keep off ratchet 40 response tensioning control members 32 and ratchet component 34 makes it at coiling direction, around the first pivot axis A, rotate.
Release component 42 structures are flat rigid plate, its by suitable material for example metal make.In the illustrated embodiment, as shown in Figure 5, release component 42 comprises mounting hole 42a, discharges location division 42e and controls location division 42f.Between release component 42 and lower supporting plate 46, by screw 42s, nut 42n, release component 42 is fixed on to lower supporting plate 46 belows, release component 42 is around screw 42s center shaft pivotable.Like this, with respect to base component 30, the second pivot axis B around the first pivot axis A skew with control member 44 installs release component 42 pivotly.Flat wind spring 78 is operationally connected between release component 42 and lower supporting plate 46 with at the second rotation direction R2 upper offset release component 42.Spring 78 has the first end in the hole being arranged in lower supporting plate 46 and hooks the second end of the hole 42b in release component 42.Like this, spring 78 makes release component 42 setover to dead position.
Control member 44 structures are flat rigid plate, and its available suitable material for example metal is made.In the illustrated embodiment, control member 44 comprises mounting hole 44a, enters to keep off the 44b of engaged pawl portion and release component junction surface 44c.Control member 44 is with respect to the first pivot axis A of base component 30 pivotable movingly between primary importance and the second place.The second place is separated angularly with primary importance.Control member 44 has crooked connecting portion 44d, between the curled portion 46e on crooked connecting portion 44d and lower supporting plate 46, spring 80 is set, and like this, spring 80 makes control member 44 setover at the second rotation direction R2.When control member 44 is during in primary importance, the driving cog 34e that enters to keep off ratchet crown 40a and ratchet component 34 that enters to keep off ratchet 40 departs from, and contacts with the 44b of engaged pawl portion that enters to keep off of control member 44.
As shown in Figures 2 to 5, what be located at that the external tooth with on ratchet component 34 on the pivot pin 64 that is positioned at tensioning control member 32 heads matches enters to keep off ratchet 40 and retracing spring 70, when user promotes tensioning control member 32 and operates into gear to have moved at the first rotation direction R1 (being inner wire coiling direction), the external tooth that enters to keep off on ratchet 40 and ratchet component 34 being arranged on tensioning control member 32 is intermeshing, then promoting ratchet component 34 rotates around principal axis A, because ratchet component 34 and line tighten up member 36, be to be mounted to an integral unit that can not rotate mutually, therefore when ratchet component 34 rotation, be also with accordingly moving-wire to tighten up member 36 rotates around principal axis A thereupon, thereby tighten up the speed change interior lines that line is tightened up on member 36, reach into the function of gear speed change.
With reference to Fig. 3 and Fig. 6 (birds-eye view of Fig. 7) when user promotes tensioning control member 32 while operating into gear to have moved at the first rotation direction R1 (being inner wire coiling direction), the ratchet crown 40a that enters to keep off that enters to keep off ratchet 40 being arranged on tensioning control member 32 engages with the driving cog 34e of ratchet component 34, promote tensioning control member 32 larger at the first rotation direction R1 movement angle, enter to keep off ratchet 40 and just can cross tooth position the more at ratchet component 34. can realize once and multistagely enter to keep off.Enter to keep off in operating process, because ratchet component 34 is identical around principal axis A rotational angle with tensioning control member 32, when promoting tensioning control member 32 and once enter gear operation only to complete in the first rotation direction R1 motion, entering to keep off ratchet 40 and just can cross a plurality of teeth position and then complete multidigit to enter to keep off on ratchet component 34 on tensioning control member 32.Shown in Fig. 6, the ratchet 40 that enters to keep off on tensioning control member 32 enters gear in maximum and puts on ratchet component 34, is also that tensioning control member 32 can not rotate at the first rotation direction R1 again.
Shown in Fig. 8 (upward view of Fig. 7), the ratchet 40 that enters to keep off on tensioning control member 32 enters gear in maximum and puts on ratchet component 34, tensioning control member 32 is biased on the second rotation direction R2 (being inner wire release direction) by retracing spring 60, enters to keep off the adjacency section 46d that ratchet 40 rests on lower supporting plate 46.Now control member 44 is with respect to base component 30 in primary importance, and the driving cog 34e that enters to keep off ratchet crown 40a and ratchet component 34 that enters to keep off ratchet 40 departs from, thereby contacts with the 44b of engaged pawl portion that enters to keep off of control member 44.On the other hand, when control member 44 with respect to base component 30 in primary importance, location ratchet 38 has location ratchet crown 38a, location ratchet crown 38a is through the opening 46f on lower supporting plate 46.Location ratchet crown 38a combines with the positioning teeth 34f of ratchet component 34, and location ratchet 38 plays maintenance effect.
With reference to Fig. 9 A to Fig. 9 D, further describe base component 30, tensioning control member 32, ratchet component 34, location ratchet 38, enter to keep off the mutual relation that is connected of moving of ratchet 40, release component 42 and control member 44.
With reference to Fig. 9 A, control member 44 can rotate around the first pivot axis A between primary importance and the second place with respect to base component 30.Control member 44 with respect to base component 30 in primary importance, the ratchet 40 that enters to keep off on tensioning control member 32 enters gear in maximum and puts on ratchet component 34, the driving cog 34e that enters to keep off ratchet crown 40a and ratchet component 34 that enters to keep off ratchet 40 departs from, thereby contacts with the 44b of engaged pawl portion that enters to keep off of control member 44.The location ratchet crown 38a of location ratchet 38 is through the opening 46f on lower supporting plate 46, and this location ratchet crown 38a combines with the positioning teeth 34f of ratchet component 34, now locates ratchet 38 and plays maintenance effect.
With reference to Fig. 9 B, when promoting release component 42, user at rotation direction P1, (is actually the first rotation direction R1 around the second pivot axis B, be inner wire release direction) while having moved releasing operation, release component 42 comprises the release location division 42e that promotion location ratchet 38 rotates counterclockwise around pivot pin 54, to order about location ratchet 38, depart from the positioning teeth 34f of ratchet component 34, release component 42 also comprises the control location division 42f that promotion control member 44 rotates counterclockwise around the first pivot axis A, the release component junction surface 44c of the control location division 42f of release component 42 and control member 44 is intermeshing to be rotated counterclockwise around the first pivot axis A in order to promote control member 44, to order about the 44b of engaged pawl portion that enters to keep off of control member 44, be separated with the ratchet crown 40a that enters to keep off that enters to keep off ratchet 40, make around pivot pin 64, to clockwise rotate under retracing spring 70 bias force effects into gear ratchet 40, thereby make again to combine with the driving cog 34e of ratchet component 34 and produce location maintenance effect into gear ratchet 40.Now, control member 44 with respect to base component 30 still between primary importance and the second place.
With reference to Fig. 9 C, when promoting release component 42, user at rotation direction P1, (is actually the first rotation direction R1 around the second pivot axis B, be inner wire release direction) while further rotating, location ratchet 38 departs from the positioning teeth 34f of ratchet component 34, and the 44b of engaged pawl portion that enters to keep off that enters to keep off ratchet crown 40a and control member 44 that enters to keep off ratchet 40 not yet has disengaging completely, thereby 4 ratchet components 34 discharge inner wire releasing operation to carry out on the second rotation direction R2 being biased under 74 effects of flat wind spring, control member 44 release component junction surface 44c under the control location division of release component 42 42f promotes, control member 44 arrives at the second place with respect to base component 30, the 44b of engaged pawl portion that enters to keep off that enters to keep off ratchet crown 40a and control member 44 that enters to keep off ratchet 40 departs from completely, enter to keep off ratchet 40 and again with the driving cog 34e engagement of ratchet component 34, ratchet component 34 is played to maintenance positioning action, now release component 42 completes and carries out the inner wire releasing operation that discharges inner wire with respect to base component 30.
Refer again to Fig. 9 D, when user unclamps release component 42, release component 42 resets to home position on the second rotation direction R2 under flat wind spring 78 bias, the location ratchet crown 38a of location ratchet 38 and release location division 42e are separated, and intermeshing with the driving cog 34e of ratchet component 34, now locate ratchet 38 and again play maintenance positioning action.Between the curled portion 46e of control member 44 on crooked connecting portion 44d and lower supporting plate 46, arrange under spring 88 bias, control member 44 rotates and resets to primary importance by the second place around the first pivot axis A.Equally, the driving cog 34e that enters to keep off ratchet crown 40a and ratchet component 34 that enters to keep off ratchet 40 departs from, thereby contacts with the 44b of engaged pawl portion that enters to keep off of control member 44.
In the second embodiment provided by the present invention, as shown in figure 10, control member 144 can rotate around the 3rd pivot axis C with respect to the first pivot axis A skew between primary importance and the second place with respect to base component 30.Control member 144 comprises mounting hole, enters to keep off the 144b of engaged pawl portion and release component junction surface 144c.Due to remove control member 144 around the 3rd pivot axis C of the first pivot axis A skew with respect to base component 30 between primary importance and the second place movingly pivotable different from above-mentioned the first embodiment outside, the basic reference of motion matching relationship first embodiment of control member 144 and other and its correlated parts, at this Ao Shu no longer.
In a second embodiment, described control member 144 and release component 42 rotate around the 3rd pivot axis C and the second pivot axis B respectively, another one mode of texturing as the second embodiment, the 3rd pivot axis C and the second pivot axis B can overlap completely, under above-mentioned mode of texturing situation, can realize equally the motion matching relationship of control member in the second embodiment 144 and other and its correlated parts, at this Ao Shu no longer.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; Every equivalence of doing according to the present invention changes and revises, and all by the scope of the claims in the present invention book, is covered.