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WO1993019977A1 - Changement de vitesses destine a une bicyclette - Google Patents

Changement de vitesses destine a une bicyclette Download PDF

Info

Publication number
WO1993019977A1
WO1993019977A1 PCT/JP1993/000387 JP9300387W WO9319977A1 WO 1993019977 A1 WO1993019977 A1 WO 1993019977A1 JP 9300387 W JP9300387 W JP 9300387W WO 9319977 A1 WO9319977 A1 WO 9319977A1
Authority
WO
WIPO (PCT)
Prior art keywords
engagement
speed change
cable
locking
change operation
Prior art date
Application number
PCT/JP1993/000387
Other languages
English (en)
Japanese (ja)
Inventor
Koichi Tagawa
Original Assignee
Maeda Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maeda Industries, Ltd. filed Critical Maeda Industries, Ltd.
Publication of WO1993019977A1 publication Critical patent/WO1993019977A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
    • B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated

Definitions

  • the present invention relates to a bicycle shift operation device. More specifically, the present invention relates to a bicycle shift operation device capable of preventing the generation of unnecessary engagement noise of a step locking mechanism and performing a reliable shift operation.
  • the rear transmission is configured to move a chain guide that supports a guide pulley and a tension pulley in the axial direction of a multi-stage free wheel via a control mechanism such as a pantograph link mechanism.
  • the chain is hooked on the freewheel after the tension pulley and guide pulley have been wrapped around it. Change to a sprocket.
  • the Lyadylera operates by rotating a speed change lever connected via an operation cable.
  • the speed change lever usually has a boss-shaped base having a cable winding groove and a finger arm extending radially outward from the boss-shaped base, and the center of the boss-shaped base with respect to a frame. Is rotatably supported.
  • the operation cable is wound up or pulled out of the winding groove, so that the axial movement corresponding to the amount of rotation of the finger hook arm is performed on the cable.
  • the control mechanism such as the pantograph link mechanism is deformed in accordance with the axial movement amount of the operation cable. Is guided to the position.
  • the chain guide is continuously moved in accordance with the operation of the shift operation lever, but the shift operation lever is moved so that the chain guide is guided to an optimum position for each sprocket, that is, a position immediately below each sprocket.
  • Has very advanced technology to operate For example, if the chain guide is located at the midpoint between adjacent sprockets, the chain from the guide pulley to the freewheel The chain tilts and the chain contacts the guide plate, causing unpleasant gear noise. Therefore, the occupant must fine-tune the gearshift lever to eliminate the occurrence of gear noise and the accompanying vibration of the chain, and guide the chain guide to the optimal position for the desired sprocket. .
  • a shift operation incorporating a step lock mechanism such as a click mechanism that locks the operation lever stepwise at a rotation position corresponding to each shift position.
  • An apparatus is provided. According to this, the chain guide or guide pulley is always guided to the optimal position for a predetermined sub-rocket, that is, the position immediately below the sprocket, at the turning position of the variable arrest operation lever locked with a sense of moderation. For this reason, it is possible for anyone to easily and accurately perform a quick shift operation.
  • a so-called overshift mechanism may be provided.
  • the above-mentioned overshift mechanism moves the chain guide by a large amount to bend the chain beyond a position immediately below a predetermined sprocket when performing a speed change operation, and this chain is adjacent to the sprocket that has been hung so far.
  • the chain guide is quickly hooked on a desired large-diameter sprocket, and after the chain is fitted with the desired sprocket, the chain guide is slightly returned to prevent the chain from skewing due to the skew of the chain.
  • the over-shift mechanism described above greatly improves the speed of shifting from small sprockets to large sprockets.
  • a plurality of engagement members provided on the fixed side such as a lever shaft and the like so as to rotate together with the speed change operation lever, and the engagement members are sequentially engaged with the rotation of the speed change operation lever.
  • a click mechanism consisting of a click plate having a recess
  • a certain amount of play is provided around the lever axis between the click plate and the lever body, or the above-mentioned engaging body is provided with a certain amount of play around the lever axis.
  • the above-mentioned overshift mechanism is constituted by holding the body so that it can be guided.
  • the above-mentioned click mechanism an engagement sound is generated when the engagement body engages with the engagement recess. Therefore, the above-mentioned click mechanism not only locks the gearshift lever in a predetermined rotation angle position stepwise with a sense of moderation, but also generates the above-mentioned engagement sound. It also has a function of making the occupant recognize that the shift operation has been performed.
  • the shift operation lever is further rotated by a predetermined amount from the position where the click sound is generated, that is, the position where the engaging body and the above-mentioned self-engaging recess are engaged. I have to do it.
  • the occupant often thinks that the speed change operation has been completed by generating the engagement sound, and stops the turning operation of the speed change operation lever when the engagement sound is issued. For this reason, the above-mentioned overshift function was not sufficiently exhibited, and the shift operability could not be sufficiently improved. .
  • the front transmission has a lower sprocket rotation speed than the rear transmission, and the above-mentioned gearshift lever must be held in the overshift position for a considerable time in order to exert the overshift function. . For this reason, it was difficult for the front transmission to make full use of the above-mentioned overshift mechanism.
  • an object of the present invention is to prevent the generation of unnecessary engagement sound in the step locking mechanism or to adjust the loudness and sound quality of the engagement sound so that a passenger can surely and comfortably perform a shifting operation. It is an object of the present invention to provide a bicycle shift operation device that can be operated.
  • the present invention includes a speed change operation body rotatably supported by a suitable portion of a bicycle frame, and a step locking mechanism for phase locking the speed change operation body at a predetermined rotation position.
  • a bicycle shift operating device configured to tow or pull out a shift operating cable by turning operation,
  • the step locking mechanism includes: a locking body having a plurality of engagement recesses; and an engagement body that is sequentially and elastically engaged with the engagement recesses in accordance with a rotation operation of the speed change operation body.
  • a buffer member is provided in a predetermined engagement recess of the locking body to prevent or suppress generation of an engagement sound when the engagement body engages with the engagement recess.
  • FIG. 1 is a diagram showing an overall configuration of a speed change mechanism employing a speed change operation device of a first embodiment according to the present invention.
  • FIG. 2 is a plan view of the speed change operation device shown in FIG.
  • FIG. 3 is a sectional view taken along the axis of the speed change operation device of FIG.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a partial cross-sectional view showing a main part of the speed change device of the first embodiment.
  • FIG. 6 is a diagram for explaining the operation of the speed change operation device of the first embodiment.
  • FIG. 7 is a sectional view taken along the line VII-VII in FIG.
  • FIG. 8 is an operation explanatory view for explaining the step locking mechanism.
  • FIG. 9 is an operation explanatory diagram for explaining the step locking mechanism.
  • FIG. 10 is an exploded perspective view showing a main part of a second embodiment according to the present invention.
  • FIG. 11 is a sectional view showing a main part of a second embodiment according to the present invention.
  • the bicycle is provided with a rear transmission 1a and a front transmission 1b, and the left and right gripping parts 4a, 4
  • the present invention is applied to the speed change operation devices 6a and 6b provided over the area b.
  • the following description is made for an example of the right shift operating device 6 b for actuating the pre-transmission lb.
  • substantially the same configuration is adopted for the left shift operation device 6a for operating the rear transmission 1a.
  • the brake lever device 2b includes a brake bracket 8 provided so as to protrude forward from the front surface of the handlebar 3 toward the vehicle body.
  • a base end is rotatably connected to a lever shaft 12 provided on the brake bracket 8, and a brake lever 13 is provided extending forward of the grip portion 4b.
  • the brake cable W composed of the inner cable wl and the outer cable w2 used for the inner cable wl has an outer cable w2 which is screwed to the inner end of the brake bracket 8 in the vehicle width direction. While fixed to a The inner cable w1 is introduced into the internal space of the brake bracket 8, and the nipple 13a provided at the end thereof is fixed to the base end of the brake lever 13.
  • a cylindrical resin sleeve 17 that rotatably supports a cylindrical operation body 14 described below is provided around the handlebar 13 on which the brake lever device 2b and the speed change operation device 6b are mounted. It is fitted.
  • a cylindrical mounting portion 10 having a slit 9 which cuts out a part of the peripheral wall and penetrates the inner and outer peripheries.
  • the cylindrical mounting portion 1 is fitted over the outer peripheral portion of the resin sleeve 17 and the mounting portion 11 is screwed across the slit 9 to form the cylindrical mounting portion 10.
  • the inner diameter is forcibly reduced, and the brake bracket 8 is attached to the handlebar 3 together with the resin sleeve 17.
  • the speed change device 6b is formed integrally with the brake lever device 2b from the brake bracket 8 to the outer periphery of the grip portion 4b. ing.
  • the speed change operation device 6b includes a cylindrical operation body 14 rotatably fitted around the outer periphery of the right grip portion 4b of the handlebar 3 in the axial direction, and the cylindrical operation device.
  • a step locking mechanism 15 provided on the inner peripheral portion of the cylindrical mounting portion 10 of the brake bracket 8 inside the body 14 in the axial direction, and a support shaft 2 3 provided on the upper surface of the base end of the brake bracket 8 And a cable take-up reel 16 which is rotatably supported by the motor.
  • the cylindrical operation body 14 is rotatably supported on the outer periphery of a cylindrical sleeve body 17 fitted on the grip portion 4b of the handlebar 3, and is held by the occupant.
  • the gripping operation part 18 that rotates by hand, and the gripping operation part '18 are integrally formed inside the vehicle width direction, and pulls or winds the drive cable K with respect to the cable winding reel 16.
  • It is generally configured to include a drive reel section 19 that is provided, and a connecting section 20 that is connected to the locking mechanism 15 and operates the locking mechanism 15.
  • a rubber outer jacket 21 is fitted around the outer periphery of the gripping operation section 18 so that a rider can easily grip it, and is formed such that the outer periphery of the grip 5 is substantially continuous with the outer circumference. Have been.
  • the connecting portion 20 has an uneven connection at the inner end of the cylindrical operating body 14. It is formed by forming a denture 20a.
  • the connecting portion 20 of the cylindrical operating body 14 is engaged with the connecting portion 36 of the locking mechanism so as not to rotate relatively, the step locking mechanism 15 is connected to the cylindrical operating body 14. It is operated in conjunction with the turning operation of.
  • FIG. 2 is a plan view of the speed change device 1 according to the present embodiment
  • FIG. 3 is a cross-sectional view of the speed change device 1 along a central axis.
  • the speed change operation cable T is composed of an inner cable t1 and an antenna cable t2 inserted into the inner cable t1, and the above-mentioned outer cable t2 is screwed inside the base end of the brake bracket 8.
  • the inner cable t 1 is wound around a cable winding reel 16 provided on the upper surface of the base end of the brake bracket 8.
  • the cable take-up reel 16 has a substantially circular trapezoidal shape, and is rotatably supported by a spindle 23 formed on the upper surface of the brake bracket 8. ing.
  • a member denoted by reference numeral 8a is a cover that covers the above-described cable winding reel.
  • a second reel part 25 for looping a drive cable K extending from 19 is provided.
  • the first reel portion 2 is provided on the reduced diameter side of the cable winding reel 16, and has a cable winding groove 2 formed by cutting the truncated conical slope in the circumferential direction. 4a, and a nipple engaging hole 27 continuously formed in the tangential direction of the cable winding groove 24a. Then, the inner cable t1 of the speed change operation cable T is wound around the above cable winding groove 24a, and the nipple 26 provided at the end thereof is inserted into the above-mentioned two nipple locking hole 27. I have been stopped.
  • the second reel portion 25 is provided on the enlarged diameter side along the upper surface of the brake bracket 8 of the cable take-up reel 16, and substantially has a maximum outer diameter of the cable take-up reel 16. Is formed along the cable winding groove 25a.
  • the end of the cable winding groove 25a is curved inward in the radial direction, and the nipple locking hole 30 is formed so as to be continuous with the end of the cable winding groove 25a. Formation Have been.
  • the nipple 29 a provided at the end of the drive cable K wound around the cable winding groove 25 a of the second reel part 25 25 A force is inserted into the nipple locking hole 30.
  • One end of the drive cable K is connected to the cable take-up reel 16.
  • the speed change operation cable T is routed along the handlebar 3, and the inner cable t1 is extended from the fastening bolt 22 in a direction substantially parallel to the handlebar. It is looped around the first reel part 24.
  • the drive reel or the drive reel portion 19 of the tubular operating body 14 is extended in a direction orthogonal to the handlebar 3 and the second reel portion 2 of the cable take-up reel 16. Multiplied by five.
  • the speed change operation cable T and the drive cable K are configured to be pulled or extended in a direction substantially perpendicular to each other, the tubular operation body 1 that is fitted over the handlebar 13 with the drive cable K By winding and towing in the outer circumferential direction of 4, the speed change operation cable t1 can be towed in the direction along the handlebar 3.
  • nipple 29 b provided at the end of the drive cable K looped around the second reel part 25 is a reel wound around the drive reel part 19 of the tubular operating body 14.
  • the other end of the drive cable K is fixed to the cylindrical operation body 14 by being housed in the nipple engagement hole 31 provided along the take-out groove 19a.
  • a second reel part 25 for looping is provided, and as shown schematically in FIG. 6, the cable winding radius D! Of the first reel part 24 is set to the cable of the second reel 125. It is set to be smaller than the winding radius D 2.
  • the traction force of the drive cable frame K wound around the second reel portion 25 is amplified to change the speed change operation cable t I wound around the first linole portion 24. Can be towed.
  • the driving reel For the length of the drive cable K wound around the part 19, the first reel part
  • the length of the speed change operation cable t1 wound around 24 becomes shorter.
  • the towing amount of the inner cable t1 can be set to be smaller than the turning operation amount of the cylindrical operation body 14. For this reason, even when the number of gears is large, it is possible to set a large rotation angle for rotating the tubular operating body 14 to the adjacent gear.
  • a step locking mechanism 15 for locking the rotation of the cylindrical operating body 14 stepwise is provided on the inner peripheral portion of the cylindrical mounting section 10 inside the cylindrical operating body 14 in the vehicle width direction. Are provided.
  • a so-called click mechanism is used as the step locking mechanism 15 according to this embodiment.
  • the click mechanism 32 is provided inside the cylindrical operation body 14 in the axial direction.
  • a click ring 33 serving as a locking body that is integrally rotated with the operation body 14, an engagement body 34 elastically brought into contact with the outer periphery of the click ring 33, and the engagement body 3 4 It is roughly configured with a coil panel 35 for elasticity.
  • the click ring 33 has a substantially cylindrical shape as shown in FIGS. 7 and 8, and is rotatably fitted on the sleeve 17 at the inner peripheral portion of the cylindrical mounting portion 10. Have been.
  • a connecting portion 36 connected to the connecting portion 20 formed at the inner end of the tubular operating body 14 is formed. As shown in FIG. 7, the plurality of engaging teeth 36a formed on the connecting portion 36 are engaged with the plurality of engaging teeth 20a formed on the connecting portion 20.
  • the click ring 33 and the cylindrical operation body 14 are configured to rotate integrally.
  • a plurality of engaging recesses 37 a, 37 b... Extending in the axial direction are formed on the outer peripheral portion of the click ring 33. 4 are resiliently and sequentially engaged with the engagement recesses 37a, 37b,..., So that the cylindrical operating body 14 is gradually engaged at a predetermined rotation position. It is configured to be stopped.
  • the click ring 33 according to the present embodiment is formed so as to correspond to a front gear having three sprockets.
  • the click ring 33 is configured to correspond to the front gear having three sprockets, and the engagement recesses 37 d, 37 e, and 37 f corresponding to the large-diameter sprocket.
  • An engagement recess 37 b corresponding to the intermediate diameter sprocket and an engagement recess 37 a corresponding to the small diameter sprocket are provided.
  • the reason why the three engagement recesses corresponding to the large diameter sprocket were formed in succession was that when the gearshift operation cable extended and the index adjustment was incorrect, the occupant could trace a small amount of the cylindrical operation body 14. This is to make it easy to make adjustments by turning.
  • the engagement body 34 can be accommodated together with the coil panel 35 in an accommodation hole 39 provided at a base end of the brake bracket 8.
  • the accommodation hole 39 has an opening 40 communicating with the inner periphery of the cylindrical mounting portion 10 of the brake bracket 8, and the claw portion 38 of the engaging body 34 is cylindrically mounted from the opening 40. Protrude inside the part 10 and abut the outer periphery of the click ring 33 It is configured so that:
  • the click ring 33 When the click ring 33 is rotated by rotating the tubular operation body 14, the claw portion 38 of the engagement body 34 is engaged with the engagement recess 37 of the click ring 33. a, 37 b... are sequentially engaged, and the click ring 33 or the cylindrical operating body 14 is stepwise locked at a predetermined rotation position with respect to the gripper 3.
  • the click ring 33 having the engagement recesses 37a, 37b- is formed separately from the cylindrical operation body 14, and the click ring 3 is formed. 3 is configured to be rotatably fitted to the inside of the cylindrical operation body 14 so as to rotate integrally with the cylindrical operation body 14.
  • the cylindrical operating body 14 can be securely locked and held at the predetermined rotation position, and no trouble occurs in the speed change operation.
  • the cushioning member 42 is embedded in a mounting groove 43 formed in the axial direction at the bottom of the engagement recess 37 b of the click ring 33, and a part thereof is partially engaged with the engagement recess 3. It is provided to be exposed from the bottom of 7b.
  • the cushioning member 42 is provided so as to be deviated to the right side from the center of the engagement concave portion 37b.
  • an engaging recess 37 c that can hold the chain guide at the overshift position is provided adjacent to the engaging recess 37 b corresponding to the intermediate diameter sprocket of the click ring 33. Have been.
  • the engagement recesses 37c are provided on the side where the buffer member 42 is deviated and on the opposite side.
  • the engaging body 34 moves in the X direction from the position drawn by the solid line, that is, a case where the chain is changed from a small diameter sprocket to an intermediate diameter sprocket.
  • the claw portion 38 of the engagement body 34 is relatively slid on the outer peripheral portion of the click ring 33, and engages with the engagement recess 37b.
  • a rubber cushioning member 42 is provided at the bottom of the engagement recess 37 b so as to be deviated rightward from the center of the engagement recess 37. For this reason, the claw portion 38 engaged with the engagement concave portion 37 b engages with the engagement concave portion 37 so as to ride on the exposed portion 45 of the cushioning member 42.
  • an engaging recess 37 c for holding the click ring 33 at the overshift position is provided adjacent thereto. ing. Therefore, when the cylindrical operation body is further rotated to engage the claw portion 38 with the engagement concave portion 37c, an engagement sound is generated. This allows the occupant to recognize that the tubular operating body 14 has been rotated to the shift operation position, and locks the tubular operating body at the overshift position.
  • the engaging recess 37 b has a circumferential width set to be larger than the width of the claw 38.
  • the buffer member 42 is provided so as to be deviated from the center to the side opposite to the engagement recess 37 c corresponding to the overshift position. Therefore, when the claw portion 38 is engaged with the engagement recess 37 b from the engagement recess 37 c side, the claw 38 engages the cushioning member 42 of the engagement recess 37 b. It comes into contact with the portion 44 that is not provided, and at this time, an engagement sound is generated. Therefore, the occupant can recognize that the tubular operating body has been positioned at the regular transfer position. Therefore, the return rotation of the tubular operation body 14 can be reliably performed.
  • the left slope of the engagement concave portion 37c corresponding to the overshift position is formed in a gentle taper shape. For this reason, when the claw portion 38 engages with the engagement recess 37c from the engagement recess 37d corresponding to the large diameter sprocket, that is, the engagement body 34 moves in the Y direction in FIG. No engagement sound is generated when engaging with the engagement recess 37c.
  • the chain guide is reliably guided to a position directly below the intermediate diameter sprocket, and an engagement sound can be generated at this time.
  • the click mechanism 32 can prevent or suppress the generation of unnecessary engagement noise, and can also rotate the cylindrical operation body 14 at a predetermined gear position.
  • the engagement sound can be reliably generated. Therefore, there is no engagement sound that may be mistaken for the completion of the speed change operation, and it is possible to prevent a passenger from interrupting the speed change operation due to the engagement sound and to perform a reliable speed change operation. It becomes possible.
  • the lever shaft protruding from the appropriate portion of the bicycle frame is applied to a conventional speed change operation device configured by rotatably fitting a lever body having an extending arm portion.
  • a disc-shaped click plate 33a having a center hole is employed as a locking body while a steel ball 34a force is employed as an engaging body.
  • the click plate 33 a according to the present embodiment includes an engagement plate 50 having engagement holes 50 a, 50 Ob... Arranged at predetermined intervals in a circumferential direction;
  • the base plate 52 attached to the opposite side of the ball 34a from the base plate 52, and the rubber plate 5 interposed between the engagement plate 50 and the base plate 52 1 and are configured.
  • the rubber plate 51 constitutes the bottom of each engagement recess 53 with which the steel ball 34a engages in a state where the rubber plate 51 is backed up by the base plate 52.
  • Ear pieces 54a and 54b to be engaged with the inner circumference of the boss base (not shown) of the lever body are provided on the outer circumference of the engagement plate 50 and the base plate 52, respectively.
  • the entire click plate is made to rotate with the lever body.
  • the steel ball 34 a is held movably in the holding hole 55 a of the engaging body holding plate 55 fitted into the lever shaft so that it cannot rotate relative to the lever shaft. 6 is configured to elastically contact the click plate 33a.
  • the lever body When the lever body is rotated, the steel balls 34a are sequentially elastically engaged with the engagement recesses 53 formed by the engagement holes 50a, 50b... And the base plate 52. In this case, the lever body is locked stepwise at a predetermined rotation position.
  • each of the engaging recesses 53 is formed by the engaging holes 50 a, 5 Ob,.
  • a rubber plate 51 is arranged on the entire bottom surface of 3.
  • the steel ball 34 a engaging with the engagement recess 53 does not directly collide with the surface of the base plate 52, and the steel ball 34 a and the click plate 33 associated with the gear shifting operation are not provided.
  • the generation of the engagement noise of a can be prevented or the magnitude of the engagement noise can be reduced. Therefore, the same effects as in the first embodiment can be exerted.
  • the bottom of all the engagement recesses 53 is provided with a rubber as a cushioning member.
  • the rubber plate 51 is arranged, a part of the rubber plate 51 is cut out, so that the rubber plate 52 is arranged at the bottom of a predetermined engagement concave portion to selectively generate an engagement sound. It can also be prevented.
  • the present invention is applied to the right IJ operating device 6b for operating the front transmission, but may be applied to the left speed operating device 6a for operating the rear transmission 1a. .
  • step locking mechanism 15 is not limited to the embodiment, and the present invention can be applied to a multi-stage gear having two or four or more sub-rockets.
  • the rubber cushioning member is provided, but the magnitude or sound quality of the engagement sound can be adjusted by searching for a resin cushioning member.
  • the overshift function is provided at the rotation position of the cylindrical operating body corresponding to the intermediate diameter sprocket, but when the intermediate diameter sprocket is switched to the large diameter sprocket, It can also be configured to exert an overshift function. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)

Abstract

Un changement de vitesses destiné à une bicyclette permet à un cycliste d'effectuer un changement de manière sûre et confortable en prévenant ou réduisant le bruit dû au claquement d'un mécanisme à cliquet utilisé par le boîtier du changement de vitesses. Ce changement de vitesses comporte un boîtier, supporté de manière à pouvoir pivoter sur une partie appropriée du cadre de bicyclette, ainsi qu'un mécanisme à cliquet destiné à verrouiller ce boîtier dans une position de pivotement prédéterminée. Un câble de changement de vitesses est rappelé ou déroulé par la rotation de ce boîtier. Le mécanisme à cliquet comprend une roue (33) munie de multiples encoches de blocage (37a, 37b...), un dispositif de blocage (34) conçu pour s'engager de manière souple et successive dans ces encoches de blocage selon le pivotement du corps, et des amortisseurs (42) placés dans certaines encoches pour éviter un bruit de claquement quand le dispositif de blocage s'engage dans une encoche de blocage.
PCT/JP1993/000387 1992-03-31 1993-03-29 Changement de vitesses destine a une bicyclette WO1993019977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4/77543 1992-03-31
JP7754392 1992-03-31

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WO1993019977A1 true WO1993019977A1 (fr) 1993-10-14

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609064A (en) * 1994-02-23 1997-03-11 Shimano, Inc. Shifting apparatus for a bicycle
US5611744A (en) * 1994-02-22 1997-03-18 Sichuan Xinxin Mechanical Engineering Co., Ltd. Bicycle crank driven chain wheel assembly
US5666859A (en) * 1994-12-02 1997-09-16 Fichtel & Sachs Ag Latching shifter for a bicycle transmission
US5799541A (en) * 1994-12-02 1998-09-01 Fichtel & Sachs Ag Twist-grip shifter for bicycles and a bicycle having a twist-grip shifter
US5823058A (en) * 1994-12-02 1998-10-20 Mannesmann Sachs Ag Twist-grip shifter for bicycles and a bicycle having a twist-grip shifter
US6055882A (en) * 1995-09-20 2000-05-02 Fichtel & Sachs Ag Twist-grip shifter for bicycles
CN1090127C (zh) * 1997-07-24 2002-09-04 株式会社岛野 一种自行车用变速操作装置
WO2003063632A1 (fr) * 2002-02-01 2003-08-07 Martin Sanders Cliquet
CN107010168A (zh) * 2017-04-17 2017-08-04 珠海蓝图控制器科技有限公司 一种自行车换挡器
CN109177964A (zh) * 2018-08-30 2019-01-11 重庆长安汽车股份有限公司 一种汽车p挡驻车提醒系统及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031985Y2 (ja) * 1980-11-19 1985-09-25 株式会社シマノ 変速操作装置
JPH0246467Y2 (fr) * 1984-12-14 1990-12-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031985Y2 (ja) * 1980-11-19 1985-09-25 株式会社シマノ 変速操作装置
JPH0246467Y2 (fr) * 1984-12-14 1990-12-07

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611744A (en) * 1994-02-22 1997-03-18 Sichuan Xinxin Mechanical Engineering Co., Ltd. Bicycle crank driven chain wheel assembly
US5609064A (en) * 1994-02-23 1997-03-11 Shimano, Inc. Shifting apparatus for a bicycle
US5666859A (en) * 1994-12-02 1997-09-16 Fichtel & Sachs Ag Latching shifter for a bicycle transmission
US5799541A (en) * 1994-12-02 1998-09-01 Fichtel & Sachs Ag Twist-grip shifter for bicycles and a bicycle having a twist-grip shifter
US5823058A (en) * 1994-12-02 1998-10-20 Mannesmann Sachs Ag Twist-grip shifter for bicycles and a bicycle having a twist-grip shifter
US6055882A (en) * 1995-09-20 2000-05-02 Fichtel & Sachs Ag Twist-grip shifter for bicycles
CN1090127C (zh) * 1997-07-24 2002-09-04 株式会社岛野 一种自行车用变速操作装置
WO2003063632A1 (fr) * 2002-02-01 2003-08-07 Martin Sanders Cliquet
GB2401415A (en) * 2002-02-01 2004-11-10 Martin Sanders A ratchet
CN107010168A (zh) * 2017-04-17 2017-08-04 珠海蓝图控制器科技有限公司 一种自行车换挡器
CN109177964A (zh) * 2018-08-30 2019-01-11 重庆长安汽车股份有限公司 一种汽车p挡驻车提醒系统及方法

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