WO1993018959A1 - Gear shifter for bicycle - Google Patents
Gear shifter for bicycle Download PDFInfo
- Publication number
- WO1993018959A1 WO1993018959A1 PCT/JP1993/000334 JP9300334W WO9318959A1 WO 1993018959 A1 WO1993018959 A1 WO 1993018959A1 JP 9300334 W JP9300334 W JP 9300334W WO 9318959 A1 WO9318959 A1 WO 9318959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- cable
- main body
- bicycle
- handlebar
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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
- B62M25/045—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated having single actuating means operating both front and rear derailleur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20012—Multiple controlled elements
- Y10T74/20018—Transmission control
- Y10T74/20037—Occupant propelled vehicle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20207—Multiple controlling elements for single controlled element
- Y10T74/20256—Steering and controls assemblies
- Y10T74/20268—Reciprocating control elements
- Y10T74/2028—Handle bar type
- Y10T74/20287—Flexible control element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
- Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
- Y10T74/20438—Single rotatable lever [e.g., for bicycle brake or derailleur]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2133—Pawls and ratchets
- Y10T74/2136—Pivoted pawls
- Y10T74/2138—Flexible single tooth
Definitions
- the present invention relates to a bicycle shift operation device.
- the bicycle transmission includes a transmission and a transmission operation lever device that is connected to the transmission via an operation cable and is attached to an appropriate portion of a frame or a handlebar. By operating the transmission, the transmission is operated to perform a shift operation. .
- the speed change lever device is generally configured by connecting an operation cable to a base of an operation lever rotatably supported by a fixed shaft provided on a frame or a handlebar.
- the operation cable is wound and pulled by the cable winding groove in the operation lever base.
- the operation cable is pulled out from the cable winding groove of the transmission lever by the spring force of the return spring incorporated in the motor. The axial movement of the operating cable is transmitted to the transmission, which activates it.
- the above-mentioned shift operation lever device is provided away from the grip portion of the handlebar, and the occupant needs to perform the shift operation by moving one hand away from the handlebar.
- the vehicle is in a one-handed driving state. For this reason, if there is a situation where a sudden stop must be performed during the shifting operation or a situation where it is necessary to avoid uneven road surfaces, it takes time to move the hand to the brake or steering wheel position. Therefore, it was not possible to cope with the above situation at all, and it could not be said that driving safety was high. .
- the gearshift operation lever device can be operated while holding the steering wheel.
- a speed change operation lever device is mounted near a grip portion of a handlebar.
- the gear shifting operation must be performed without completely releasing the hand from the gripper when operating the gear shifting lever. Power, 'possible and safety is enhanced.
- a lever shaft is fixed to the handlebar via a mounting band or the like. And a speed change lever is provided rotatably.
- an object of the present invention is to provide a speed change operation device which has a small mounting space and does not interfere with a brake lever device or the like even when provided close to a grip portion of a handlebar.
- Another object of the present invention is to provide a shift operation device that can significantly reduce the manufacturing cost and can be applied to a bicycle having a small number of shift steps.
- An annular lever that is fitted and fixed, and a substantially C-shaped lever body that is elastically fitted around the outer periphery of the lever base so as to be rotatable around the axis of the handlebar;
- An cable fixing portion for fixing the end of the gear cable of the speed change operation cable composed of the inner cable and the cable attached thereto is integrally formed on the outer peripheral portion of the base. While being provided,
- the inner cable end that extends from the end of the above cable A cable fastening portion, an operation arm portion capable of locking a finger of the occupant, and an outer peripheral portion of the lever main body are integrally provided.
- FIG. 1 is a plan view of a first embodiment of the speed change operation device according to the present invention.
- FIG. 2 is a cross-sectional view taken along line H-II in FIG.
- FIG. 3 is a plan view of a second embodiment of the speed change device according to the present invention.
- FIG. 4 is a right side view of the second embodiment shown in FIG.
- FIG. 5 is a left side view of the second embodiment shown in FIG.
- FIG. 6 is a sectional view taken along the line VI-VI in FIG.
- FIG. 7 is a side view showing a third embodiment according to the present invention.
- a speed change device 1 includes a grip portion provided at an end of a handlebar 2.
- the speed change operation device 1 includes an annular lever base 5 that is fixedly fitted to the handlebar 2, and a lever body 6 that is elastically fitted to the outer periphery of the single lever 5. Approximately is provided.
- the lever base 5 is integrally molded of resin, and has a slit 7 in which a part of the peripheral wall is cut off in the axial direction to communicate the inner and outer peripheries, and a radial outside of the handle bar 2 from both sides of the slit 7. And a pair of fastening portions 8a and 8b opposed to each other with the slit 7 interposed therebetween. Then, the lever base 5 is inserted into the handlebar 2 and the inner diameter of the lever base 5 is forcibly reduced by the mounting screw 9 screwed across the slit 7, thereby obtaining the lever base 5.
- the platform 5 is fixedly fitted to the handlebar 2.
- One fastening portion 8b of the lever 5 is provided with an outer cable fastening portion 11 having a screw hole 10 extending through the handlebar 2 in a direction perpendicular to the axis of the handlebar 2.
- the gear receiving bolt 12 that fastens the end of the gear cable w2 of the speed change cable W composed of the inner cable w1 and the gear cable w2 that is inserted into the inner cable w1 has the screw hole 10
- the inner cable w 1 extends from the other end of the screw hole 10 to the outer peripheral portion of the single lever 5.
- the lever body 6 is integrally molded of resin, and as shown in FIG. 2, is formed in a substantially C-shape with cut-out portions corresponding to the tightening portions 8a and 8b. 5 is elastically fitted around the outer periphery.
- An outer peripheral portion of the lever body 6 includes an inner cable fixing portion 14 for fixing an end portion of the inner cable w1 extending from the screw hole 10 of the above cable fixing portion 11 and a passenger.
- Operating arms 15a and 15b capable of locking the fingers of the user.
- the inner cable fixing portion 14 is provided with a nipple locking hole 16 formed on the opposite side of the outer cable fixing portion 11 in the circumferential direction with respect to the outer cable fixing portion 11, and the outer cable fixing portion 16 is formed from the bottom of the nipple locking hole 16. radially inwardly of the inner surface 1 7 a a c the cable through ⁇ 1 7 and a cable passing ⁇ 1 7 which penetrates the destination side can ⁇ I while winding the inner cable w 1 In this way, it is formed in an arc shape centered on the rotation axis.
- the inner cable w1 is passed through the cable through hole 17 and the two nipples 13 integrally provided at the end of the inner cable w1 are engaged with the two nipple locking holes 16. The end of the inner cable wl is fixed to the inner cable fixing portion.
- the operation arm portions 15a and 15b according to the present embodiment are formed to protrude at two locations at predetermined intervals in the circumferential direction. This means that, depending on the position of the fingers of the occupant gripping the grip portion 3, the fingers are locked to either of the operation arm portions 15a and 15b, and the revolving body 6 is held in place. It is configured to be able to be rotated.
- the lever body 6 is configured to be rotatable within a range in which it comes into contact with the proximal end of the cable fastening portion 11.
- a protrusion 19 is provided on the outer peripheral portion of the lever base 5, while the protrusion 19 is engaged with the inner peripheral portion of the lever body 6.
- a concave 20 is provided. Therefore, at the rotation position of the lever main body 6 that pulls the operation cable W, the projection 19 and the engagement concave portion 20 are engaged to hold the lever main body 6. ing.
- the present embodiment is configured to correspond to a two-speed transmission having two sprockets. And the other open end 18a can be locked at a rotational position where it contacts the proximal end of the other tightening portion 8a.
- the speed control device 1 is configured. Therefore, as is apparent from FIG. 1, the width of the gearshift operating device 1 in the axial direction of the handlebar 12 is extremely small, and a large mounting space is not required. Further, when mounting the gearshift device 1, and almost also interfere this brake lever device 4 or the like during the rotational operation of the lever one body les, 0
- the speed change operating device 1 includes a ring-shaped lever base 5 that is fixedly fitted to the handlebar 2, and a substantially C-shaped lever main body that is fitted to the outer peripheral portion of the lever base 5. 6 and the number of parts is extremely small. For this reason, the manufacturing cost can be significantly reduced. Moreover, the speed change device 1 can be very easily attached to the handlebar.
- FIG. 3 is a plan view of a speed change device according to a second embodiment of the present invention
- FIG. 4 is a right side view of the speed change device shown in FIG. 3
- FIG. 5 is a left side view of the speed change device shown in FIG.
- FIG. 6 and FIG. 6 are cross-sectional views taken along line VI-VI in FIG.
- the embodiments shown in these drawings are provided with deformation preventing means 31 for preventing the C-shaped end of the lever body 6 from expanding and deforming.
- the deformation preventing means 31 is provided with an outer flange 21 and an inner flange 22 along both sides of the lever body 6 on both sides of the lever base 5. Both are provided with engaging means 32a and 32b provided between the both flanges 21 and 22 and the side of the lever body.
- the outer flange portion 21 is provided axially outside the handlebar 2, and is formed integrally with the lever 5.
- the inner flange portion 22 is provided on the inner side in the axial direction of the handlebar 2, and is formed by joining a donut disk-shaped flange member 22 a to the inner portion of the lever base 5. .
- projections 26 a and 27 a are provided on one side of the lever base 5 so as to protrude to join the flange body 22 a to the lever base 5. Then, the protrusions 26 a and 27 a are engaged with the joint holes 26 b and 27 b provided in the flange body 22 a, and the front end portion is swaged, so that the flange body 2 2 a is levered. It is joined to table 5.
- the engaging means 32 a and 32 b are provided with engaging projections 25 a and 25 on both sides of the end of the lever body 6 in the cable pulling direction. While the b is integrally formed, the upper flange portions 21 and 22 are provided with engagement holes 23 and 24 into which the engagement protrusions 25a and 25b are engaged.
- the engagement holes 23 and 24 have a radial width capable of engaging the engagement protrusions 25a and 25b, and are formed in a circumferentially long hole shape.
- the circumferential length of the engaging holes 23 and 24 is set so as to correspond to the amount of rotation of the lever body 6.
- the engaging projections 25a and 25b are , 24 are prevented from moving outward in the radial direction of the projections 25a, 25b. That is, if the opening end 18a attempts to displace radially outward, the engaging protrusions 25a and 25b also attempt to displace radially outward. 25b abuts against the outer peripheral edges of the engagement holes 23, 24 in the radial direction to prevent the displacement. Therefore, there is a possibility that the C-shaped end of the lever body 6 is greatly expanded to adversely affect the shifting operability.
- the engaging holes 23 and 24 are formed as arc-shaped long holes corresponding to the rotation range of the engaging protrusions 25a and 25b, the engaging protrusions 25 and 24 are formed. Movement of a and 25b in the circumferential direction is allowed. Therefore, the turning operation of the lever body 6 is not hindered.
- the deformation resistance of the lever body 6 is remarkably increased, and the opening ends 18a, 18b are greatly deformed outward in the radial direction of the force, so that the rotation axis of the lever body is rotated. ,, Ndrno ⁇ -no significant deviation from the axis. For this reason, there is no possibility that the speed change operability is adversely affected or the lever body 6 comes off the lever base 5.
- FIG. 7 shows a third embodiment of the present invention.
- a connecting member 31 a for connecting the lever bodies ⁇ C-shaped open ends to each other (;) is provided on one side of the lever body 6.
- the member 31a is in the shape of a semi-doughnut disk, and is connected to the connection holes 29a and 29b provided at both ends by integral formation with the lever body side.
- the projections 30a and 30b are engaged with the lever body 6 by engaging them.
- the substantially C-shaped lever main body 6 has a substantially annular structure, and the rigidity of the lever main body 6 is remarkably increased. For this reason, the opening ends 18a and 18b are not displaced outward in the radial direction and largely separated from each other, so that the shifting operability is not adversely affected.
- the speed change operation device is provided between the grip portion 3 of the handlebar 2 and the brake lever device 4, but may be provided inside the brake lever device 4 in the axial direction. ...
- the lever body 6 is formed of resin, and the lever body 6 is configured to be fitted around the outer peripheral portion of the lever base 5 only by the elasticity of the lever body 6, but in order to enhance the elasticity, A C-shaped panel can be attached to the side.
- the configuration is such that it corresponds to a two-stage transmission, but it may be configured so as to correspond to a transmission having three or more stages.
- the engagement recess 20 is provided with the projection 19 which engages with each other at the rotation position of the lever main body 6 for pulling the operation cable.
- the lever body 6 and the lever 5 are provided with a plurality of engaging teeth 19 a and 20 a which engage with each other only by the frictional force of the main body 6 or as shown in the second embodiment.
- the lever body 6 can be configured to be held at a predetermined rotation position.
- the radial width of the engagement holes 23, 24 is set slightly larger than the diameter of the engagement protrusions 25a, 25b to allow slight deformation of the lever body.
- the engagement teeth 19a and 20a can be smoothly disengaged.
- the engagement means 32a and 32b are provided on both sides of the lever body 6, but may be provided on only one of them. .
- the engaging means 32a and 32b are not limited to the embodiment.
- the engaging projections 25a and 25b are radially outside.
- An arc-shaped ridge may be provided to prevent displacement in the direction.
- the engagement protrusion can be provided on the flange portion, and the engagement hole can be provided on the lever body.
- the deformation preventing means is not limited to the embodiment, and other means can be adopted.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Mechanical Control Devices (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/146,113 US5429012A (en) | 1992-03-23 | 1993-03-22 | Bicycle speed change operation assembly |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4/64824 | 1992-03-23 | ||
| JP6482492 | 1992-03-23 | ||
| JP4/158303 | 1992-06-17 | ||
| JP4158303A JPH05319356A (ja) | 1992-03-23 | 1992-06-17 | 自転車用変速操作装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993018959A1 true WO1993018959A1 (en) | 1993-09-30 |
Family
ID=26405931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1993/000334 Ceased WO1993018959A1 (en) | 1992-03-23 | 1993-03-22 | Gear shifter for bicycle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5429012A (ja) |
| EP (1) | EP0589048A4 (ja) |
| WO (1) | WO1993018959A1 (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06239287A (ja) * | 1993-02-12 | 1994-08-30 | Mori San Tsuaa:Kk | 自転車用変速操作装置 |
| US5941125A (en) * | 1995-12-28 | 1999-08-24 | Shimano, Inc. | Bicycle shifting apparatus having remotely located levers for operating a single transmission |
| US5730030A (en) * | 1996-01-19 | 1998-03-24 | Shimano, Inc. | Shifting apparatus for bicycles having a brake operating unit disposed between first and second shifting levers |
| TW378183B (en) * | 1996-02-14 | 2000-01-01 | Shimano Kk | Bicycle shift levers which surround a handlebar |
| DE19651577C2 (de) * | 1996-12-12 | 1999-02-18 | Sram De Gmbh | Drehgriffschalter für Fahrradgetriebe |
| US5980800A (en) * | 1998-03-24 | 1999-11-09 | Tsai; Shih Fan | Method for making a bracket of a brake lever |
| US6453766B1 (en) | 1998-11-20 | 2002-09-24 | Shimano, Inc. | Force transfer mechanism for a bicycle transmission control cable |
| US6453764B1 (en) * | 2000-03-03 | 2002-09-24 | Shimano, Inc. | Switch style bicycle shift control device |
| US7013751B2 (en) * | 2003-05-29 | 2006-03-21 | Shimano Inc. | Bicycle shift control device |
| US7104154B2 (en) * | 2003-05-29 | 2006-09-12 | Shimano Inc. | Bicycle shift control device |
| US7228756B2 (en) * | 2003-11-25 | 2007-06-12 | Shimano Inc. | Bicycle control device |
| JP2007076545A (ja) * | 2005-09-15 | 2007-03-29 | Shimano Inc | 自転車用変速操作装置 |
| JP2014196060A (ja) * | 2013-03-29 | 2014-10-16 | 株式会社シマノ | 操作装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238878Y2 (ja) * | 1978-10-06 | 1987-10-03 | ||
| JPH0246467Y2 (ja) * | 1984-12-14 | 1990-12-07 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB906492A (en) * | 1960-07-13 | 1962-09-19 | Eugen Munz | A twist grip control for bowden cable transmission |
| JPS5145853B2 (ja) * | 1973-07-31 | 1976-12-06 | ||
| DE3667705D1 (de) * | 1985-08-06 | 1990-01-25 | Shell Int Research | Speicherung und rueckgewinnung von energie. |
| EP0347967A1 (en) * | 1988-06-23 | 1989-12-27 | Agfa-Gevaert N.V. | Photosensitive recording material suited for use in electrophotography |
| FR2657062B1 (fr) * | 1990-01-12 | 1992-04-30 | Sachs Ind Sa | Dispositif de commande a indexation pour derailleur de cycle. |
-
1993
- 1993-03-22 EP EP19930906801 patent/EP0589048A4/en not_active Ceased
- 1993-03-22 WO PCT/JP1993/000334 patent/WO1993018959A1/ja not_active Ceased
- 1993-03-22 US US08/146,113 patent/US5429012A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238878Y2 (ja) * | 1978-10-06 | 1987-10-03 | ||
| JPH0246467Y2 (ja) * | 1984-12-14 | 1990-12-07 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0589048A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0589048A1 (en) | 1994-03-30 |
| EP0589048A4 (en) | 1994-11-30 |
| US5429012A (en) | 1995-07-04 |
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