[go: up one dir, main page]

WO2014003395A1 - Transmission pour vélo - Google Patents

Transmission pour vélo Download PDF

Info

Publication number
WO2014003395A1
WO2014003395A1 PCT/KR2013/005566 KR2013005566W WO2014003395A1 WO 2014003395 A1 WO2014003395 A1 WO 2014003395A1 KR 2013005566 W KR2013005566 W KR 2013005566W WO 2014003395 A1 WO2014003395 A1 WO 2014003395A1
Authority
WO
WIPO (PCT)
Prior art keywords
latch
unit
sprocket
cam plate
support
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
Application number
PCT/KR2013/005566
Other languages
English (en)
Korean (ko)
Inventor
이상옥
최재권
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dream & Challenge Co Ltd
Original Assignee
Dream & Challenge Co 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 Dream & Challenge Co Ltd filed Critical Dream & Challenge Co Ltd
Publication of WO2014003395A1 publication Critical patent/WO2014003395A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs

Definitions

  • the present invention relates to a bicycle transmission, and more particularly, to a bicycle transmission that can be shifted even in a stationary state.
  • the gear transmission of the bicycle is installed to be able to step on the pedal at a constant force and speed according to the driving state, it consists of a method of overlapping the sprocket (sprocket) having a different number of teeth on the pedal and the rear wheel shaft.
  • the gear transmissions of these bicycles have the chain chain on the hill, the pedal shaft on the small sprocket, the rear wheel shaft on the large sprocket, and when the speed is flat on the flat, the bicycle chain on the pedal shaft on the large sprocket and the rear wheel shaft on the small sprocket.
  • the gear transmission as described above can be adjusted only when the bicycle is running, it is impossible to adjust the transmission when the wheel is stopped.
  • the present invention was conceived in view of the above, and an object thereof is to provide a bicycle transmission apparatus having an improved structure to allow a gear shift even in a stationary state.
  • the sprocket support unit rotatably supported on the hub shaft unit to which the wheel of the bike is coupled, the plurality of sprockets are supported on the outside;
  • a latch unit installed between the hub shaft unit and the sprocket support unit to allow rotation of the sprocket support unit in one direction and to suppress rotation in the other direction;
  • a latch control unit for selectively controlling the latch unit to allow free rotation of the sprocket support unit with respect to the hub shaft unit in the other direction so that gear shifting is possible in a stopped state. do.
  • the latch unit may include a latch movably installed at an outer circumferential side of the hub shaft unit; An elastic member for elastically supporting the latch so as to protrude outwardly; And a latch interference part disposed on an inner circumference of the sprocket support unit so as to face the latch and having a latch catching hole for engaging the latch when the sprocket support unit rotates in the other direction.
  • the latch unit may further include a latch support cap coupled to an end of the hub shaft unit to prevent the sprocket support unit from being separated from the hub shaft unit, and supporting the latch at an outer circumference thereof.
  • the latch control unit may further include: a guide protrusion installed to protrude toward the side of the latch; A cam plate coupled to the guide protrusion and having a cam portion for controlling the position of the guide protrusion during rotation, the cam plate being rotatable with the latch support cap and connected to the latch support cap so as to be relatively rotatable; And a frictional force providing unit for selectively providing a friction force to the cam plate so that the cam plate is rotated relative to the latch support cap.
  • the guide is provided along the cam unit. It is preferable that the sprocket support unit is freely rotatable in the other direction by changing the position of the projection so that the latch is changed in posture so as to escape the latch interference hole.
  • the latch control unit may further include a rotation angle limiter disposed between the cam plate and the latch support cap to limit a range in which the cam plate is rotated relative to the latch support cap.
  • the latch control unit may further include a fixing member for preventing the cam plate from being separated from the latch support cap.
  • the latch interference portion is preferably formed integrally on the inner circumference of the sprocket support unit.
  • the sprocket support unit the sprocket support housing is rotatably supported by a bearing on the outside of the hub shaft unit, a plurality of sprockets are fitted to the outer periphery; And a release preventing cap which is fastened to an end of the sprocket support housing and prevents detachment of the sprocket coupled to the sprocket support housing, wherein the latch interference part is installed at the release preventing cap.
  • the bicycle transmission device of the present invention not only can the gear shifting while driving, but also the gear shifting in the stationary state.
  • the gear shift can be easily performed even in a state of driving at a low speed, such as when driving on a flat road and driving uphill suddenly, so that the bicycle can be used more conveniently.
  • FIG. 1 is an exploded perspective view showing a shift of the bicycle according to an embodiment of the present invention.
  • FIG. 2A is a cross-sectional view of the transmission of the bicycle shown in FIG.
  • FIG. 2B is a perspective view of the latch unit illustrated in FIG. 1.
  • FIG. 3 is a front view showing the transmission of the bicycle in the state of Figure 2a.
  • 4 and 5 are diagrams for explaining a state in which gear shift is possible in the stationary state.
  • FIG. 6 and 7 are views for explaining a transmission device of a bicycle according to another embodiment of the present invention.
  • the bicycle transmission apparatus 10 is rotatably supported by the hub shaft unit 20 to which the wheels of the bicycle are coupled, and a plurality of sprockets 30 on the outside. And a latch unit 50 and a latch control unit 60 installed between the sprocket support unit 40, the hub shaft unit 20, and the sprocket support unit 40.
  • the hub shaft unit 20 includes a hub shaft body 21 and a bearing support member 23 coupled to one end of the hub shaft body 21.
  • the hub shaft body 21 has a hollow shaft 21a and a flange portion 21b spaced apart from each other at the hollow shaft 21a.
  • One end of the hollow shaft 21a is formed with a screw line to fasten the bearing support member 23.
  • the bearing support member 23 has a cylindrical shape, and a support bearing 70 is installed at an outer circumference thereof, and a screw thread screwed to the hollow shaft 21a is formed at one inner circumferential surface thereof, and a latch to be described later on the outer circumference of the other end thereof.
  • a screw engaging portion 23a having a screw line is formed so that the support cap 51 can be screwed.
  • the bearing support member 23 may be integrally formed with the hub shaft body 21, or may be manufactured and combined as a separate component.
  • a support bearing 70 is installed between the sprocket support unit 40 and the bearing support member 23 of the hub shaft unit 20.
  • the sprocket support unit 40 is separated from the sprocket support housing 41 in which a plurality of sprockets 30 are inserted and supported on the outer circumference and the sprocket 30 coupled to an end of the sprocket support housing 41 to prevent the sprocket 30 from being separated.
  • the prevention cap 43 is provided. On the outer circumference of the sprocket support housing 41, the locking jaw is formed in a predetermined pattern to prevent free rotation of the sprocket 30 coupled thereto.
  • the separation prevention cap 43 has a ring shape that is screwed to the end of the sprocket support housing 41, and is installed to protrude to the outer circumference of the sprocket support housing 41.
  • a latch interferer 57 which will be described later, is installed on an inner circumference of the sprocket support unit 40, that is, an inner circumference of the sprocket support housing 41, and a latch 53 to be described later. Latch interference hole 57a is formed.
  • Sprocket support unit 40 having the above configuration can be freely rotated in one direction (A (opposite direction of the bicycle wheel driving direction), free rotation in the other direction (B: bicycle wheel driving direction) is latch unit 50 Is optionally limited.
  • the latch unit 50 allows rotation of the sprocket support unit 40 in one direction A and selectively restricts rotation in the other direction B.
  • the latch unit 50 includes a latch support cap 51 coupled to an outer circumference of the end of the bearing support member 23 of the hub shaft unit 20, and a latch movably installed outside the latch support cap 51. 53, an elastic member 55 for elastically supporting so as to protrude outward in the pressed state of the latch 53, and a latch interference portion 57.
  • the latch support cap 51 is screwed to one end of the bearing support member 23, thereby preventing the sprocket support unit 40 and the support bearing 70 from being separated from the hub shaft unit 20.
  • a latch seating groove 51b on which the latch 53 is seated is formed to be pulled out from the outer circumference.
  • an outer circumference of the cap body 51a is formed with an annular groove 51c in which the elastic member 55 is supported in the circumferential direction.
  • the support jaw 51d on which the cam plate 62 to be described later is supported is formed on one side of the cap body 51a.
  • the latch 53 is installed to be received in the latch seating groove 51b formed on the outer circumference of the latch support cap 51, and is installed to rotate at a predetermined angle within the latch seating groove 51b, and the attitude of the latch interferer is changed. It can be moved to engage or escape the latch latch (57a) formed in the (57). That is, the latch 53 is caught in the latch latch 57a in the posture (FIGS. 2A and 3) protruding from the outer circumference of the latch support cap 51 so that the sprocket support unit 40 does not freely rotate in one direction A.
  • the sprocket support unit 40 is not caught by the latch 53 and freely restrained to be rotated together with the hub shaft unit 20, while being elastically pressed in the other direction (B) by interfering with the latch latch 57a. Allow it to rotate.
  • the latch 53 is elastically supported by the elastic member 55, and is elastically supported in a direction in close contact with the latch latch 57a.
  • the elastic member 55 includes an elastic ring for supporting the latch 53 in a state of being fitted into the annular groove 51c of the support cap 51, and the elastic member 55 is inserted into a central portion of the latch 53. Supported slots 55a are formed.
  • the latch interference portion 57 is installed on the inner circumference of the sprocket support unit 40 corresponding to the outer circumference of the latch support cap 51, and the latch interference hole 57a at which the end of the latch 53 is caught is fixed in the circumferential direction. Formed at intervals.
  • the latch interference portion 57 has a ring shape, may be installed on the inner circumference of the sprocket support unit 40, and preferably may be integrally formed on the inner circumference of the sprocket support unit 40.
  • the latch control unit 60 selectively controls the latch unit 50 to allow free rotation of the sprocket support unit 40 with respect to the hub shaft unit 20 also in the other direction B. This is to allow gear shifting at.
  • the latch control unit 60 includes a guide protrusion 61 installed to protrude toward the side of the latch 53, a cam plate 62, a rotation angle limiter 63, a fixing member 64, and a frictional force providing unit 65. ).
  • the guide protrusion 61 is installed to protrude toward the side of the latch 53.
  • the guide protrusion 61 may be formed integrally with the latch 53, or may be provided by inserting a separate pin after pressing a hole into the latch 53.
  • the cam plate 62 is formed on one surface of which the guide protrusion 61 is fitted and coupled, and the cam portion 62a for controlling the position of the guide protrusion 61 is rotated to face the latch 53.
  • the cam plate 62 is connected to the latch support cap 51 so as to be rotatable relative to the latch support cap 51.
  • the cam part 62a guides and positions the guide protrusion 61 when the cam plate 62 rotates to maintain the latch 53 protruding or lying down from the outer circumference of the latch support cap 51. Therefore, when the guide protrusion 61 is guided by the cam portion 62a and moved to the center of rotation as much as possible, the latch 53 is held in a lying position (states of FIGS.
  • the sprocket support unit 40 may be freely rotated in the other direction (B).
  • the latch 53 is returned to its original position (line position) by the elastic restoring force of the elastic member 55, and the guide protrusion 61 is also as far as possible from the center of rotation.
  • the cam plate 62 can also be driven at a predetermined angle to change the attitude.
  • the rotation angle limiter 63 includes a locking jaw 63a formed at the inner circumference of the cam plate 62 and a stopper portion 63b formed at the outer circumference of the latch support cap 51.
  • the locking jaw 63a and the stopper portion 63b interfere with each other so that the cam plate 62 can be rotated only within a predetermined angle range, so that even if a large external force (friction force) is applied to the cam plate 62, the cam plate 62 is rotated more than the determined angle.
  • the fixing member 64 is installed on the latch support cap 51 to fix the cam plate 62 so as not to be separated from the latch support cap 51.
  • the fixing member 64 preferably includes a snap ring that is elastically coupled to the outer circumference of the latch support cap 51.
  • the friction force providing unit 65 selectively provides the friction force to the cam plate 62 so that the cam plate 62 rotates independently without integrally rotating with the latch support cap 51, that is, with respect to the latch support cap 51. It is intended to be rotated relatively.
  • the friction force providing unit 65 is connected to the friction member 65b and the friction member 65b movably installed on the support bracket 65a installed on the central shaft 1 to move the friction member 65b.
  • a wire 65c is provided.
  • the central shaft 1 is installed to pass through the center of the hub shaft unit 20 and is supported by a bearing so as to be rotatable relative to the hub shaft unit 20.
  • the support bracket 65a is fixedly installed on the central shaft 1, and the friction member 65b is installed on the support bracket 65a to be movable.
  • the friction member 65b may be rotatably connected to the support bracket 65a, for example, or may be installed to reciprocally slide. Then, the friction member 65b is selectively contacted or pressurized by the cam plate 62 while being interlocked by the pulling and pulling release operation of the wire 65c, or the contact pressurization is released.
  • the wire 65c is connected to the friction member 65b to press the friction member 65b to closely contact the cam plate 62 by an operation of a wire operation unit (not shown), or to return to an initial position where no pressing force is applied.
  • the friction member 65b and the cam plate 62 may be separated from each other.
  • the wire operation unit may include an operation lever installed on a bicycle handle, and the like.
  • the configuration of the wire operation unit, the wire 65c, and the friction member 65b may be a structure or a brake of a gear shift lever and a wire widely applied to a bicycle. Since it is easily applicable from the configuration of the lever and the wire, further detailed description will be omitted.
  • the specific configuration of the frictional force providing unit 65 is not intended to limit the present invention, it should be understood that various embodiments are possible.
  • FIGS. 2A and 3 illustrate a driving state.
  • the latch 53 operates normally, so that the sprocket support unit 40 is in one direction A with respect to the hub shaft unit 20. It is relatively freely rotatable and is restrained by the latch 53 so as to rotate integrally with the hub shaft unit 20 in the other direction (B). Therefore, in this state, it is possible to shift the chain by shifting the chain using the gear transmission during driving, and when the pedal is pressed, the power is transmitted to the hub shaft unit 20 through the sprocket support unit 40. You can rotate the bicycle wheels.
  • the latch interference portion 57 ′ where the latch 53 is selectively restrained is the cap of the separation of the sprocket support unit 40 It may be formed integrally with 43 '.
  • the release preventing cap 43 ' is screwed to the outer circumferential surface or the inner circumferential surface of the end of the sprocket support housing 41, may have a structure formed to cover each of the outer circumferential surface and the inner circumferential surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)
PCT/KR2013/005566 2012-06-25 2013-06-24 Transmission pour vélo Ceased WO2014003395A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120067892A KR101193597B1 (ko) 2012-06-25 2012-06-25 자전거 변속장치
KR10-2012-0067892 2012-06-25

Publications (1)

Publication Number Publication Date
WO2014003395A1 true WO2014003395A1 (fr) 2014-01-03

Family

ID=47288481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/005566 Ceased WO2014003395A1 (fr) 2012-06-25 2013-06-24 Transmission pour vélo

Country Status (2)

Country Link
KR (1) KR101193597B1 (fr)
WO (1) WO2014003395A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI809490B (zh) * 2021-09-01 2023-07-21 彥豪金屬工業股份有限公司 自行車變速操控裝置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102790674B1 (ko) * 2022-07-06 2025-04-02 신성철 후륜 조향형 리컴번트 자전거

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3065655B2 (ja) * 1990-11-13 2000-07-17 株式会社シマノ 自転車用変速操作装置
KR20010110061A (ko) * 2000-05-30 2001-12-12 마재열 자전거의 변속 레버장치
KR20050053473A (ko) * 2004-04-02 2005-06-08 오천도 자전거용 무단 변속장치
JP2005324603A (ja) * 2004-05-12 2005-11-24 Fujiwara Wheel:Kk 自転車用変速装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3065655B2 (ja) * 1990-11-13 2000-07-17 株式会社シマノ 自転車用変速操作装置
KR20010110061A (ko) * 2000-05-30 2001-12-12 마재열 자전거의 변속 레버장치
KR20050053473A (ko) * 2004-04-02 2005-06-08 오천도 자전거용 무단 변속장치
JP2005324603A (ja) * 2004-05-12 2005-11-24 Fujiwara Wheel:Kk 自転車用変速装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI809490B (zh) * 2021-09-01 2023-07-21 彥豪金屬工業股份有限公司 自行車變速操控裝置

Also Published As

Publication number Publication date
KR101193597B1 (ko) 2012-10-24

Similar Documents

Publication Publication Date Title
EP1413509B1 (fr) Moyeu d'entraínement de bicyclette
EP2586694A1 (fr) Bicyclette à assistance électrique
EP1972536B1 (fr) Appareil de positionnement pour un dispositif de contrôle de vitesse de bicyclette
WO2001038758A1 (fr) Transmission a changement de vitesses continu
WO2013042825A1 (fr) Dispositif d'accélération pour bicyclette
KR100195515B1 (ko) 자전거의 변환 전진구동 주행의 제어장치
WO2014171756A1 (fr) Cycle à une seule roue
WO2017179750A1 (fr) Bicyclette sans chaîne
WO2014084560A1 (fr) Braquet de bicyclette
WO2014003395A1 (fr) Transmission pour vélo
WO2011081257A1 (fr) Appareil d'acceleration de bicyclette
WO2010134791A2 (fr) Appareil d'entraînement auxiliaire pour bicyclette
WO2016137051A1 (fr) Appareil engrenage à vitesse réglable
EP1506919A2 (fr) Poignée tournante pour le changement de vitesse de bicyclette avec train d'engrenages à axes parallèles
CN107571963A (zh) 自行车的前变速器的控制线的致动装置
JPH05270476A (ja) 自転車用変速操作装置
WO2014010976A1 (fr) Transmission pour bicyclette
WO2009044184A1 (fr) Liaisons mécaniques entre des parties de machines mobiles
EP2207712B1 (fr) Liaisons mécaniques pour cadres de cycles
EP2256023A1 (fr) Structure de point-mort pour vélo
WO2015190683A1 (fr) Moyeu de transmission entraîné directement par une manivelle et vélo comprenant ledit moyeu
KR100863350B1 (ko) 변속 클러치 기능을 보유한 자전거 페달 하우징
KR20150114679A (ko) 자전거의 변속장치
KR20010110061A (ko) 자전거의 변속 레버장치
KR20150022691A (ko) 자전거 변속장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13809924

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13809924

Country of ref document: EP

Kind code of ref document: A1