WO2014010976A1 - Transmission pour bicyclette - Google Patents

Transmission pour bicyclette Download PDF

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Publication number
WO2014010976A1
WO2014010976A1 PCT/KR2013/006226 KR2013006226W WO2014010976A1 WO 2014010976 A1 WO2014010976 A1 WO 2014010976A1 KR 2013006226 W KR2013006226 W KR 2013006226W WO 2014010976 A1 WO2014010976 A1 WO 2014010976A1
Authority
WO
WIPO (PCT)
Prior art keywords
latch
unit
interference
sprocket support
blocking member
Prior art date
Application number
PCT/KR2013/006226
Other languages
English (en)
Korean (ko)
Inventor
이상옥
김병일
Original Assignee
Lee Sang Ok
Kim Byeongil
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 Lee Sang Ok, Kim Byeongil filed Critical Lee Sang Ok
Publication of WO2014010976A1 publication Critical patent/WO2014010976A1/fr

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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
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • 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
    • B62M9/14—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 wheels being laterally shiftable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
    • F16D41/30—Freewheels or freewheel clutches specially adapted for cycles with hinged pawl co-operating with teeth, cogs, or the like

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.
  • By pressing the pedal at a constant force and speed to keep the progress of the bike is disclosed in the prior document (registered utility model No. 20-0274726, automatic transmission for bicycles).
  • 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 enable 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 is installed so as to be located between the latch interference portion and the latch or out, and when interposed between the latch interference portion and the latch and the interference part blocking member to separate the latch from the interference portion; ;
  • a position control unit connected to the interference blocking member and selectively moving the interference blocking member during operation, wherein the latch is located when the interference blocking member is positioned between the latch and the latch interference blocking member.
  • the sprocket support unit may be freely rotated in the other direction by sliding in the state of being located at the inner circumference of the interference blocking member.
  • the position controller may further include an elastic member configured to elastically support the interference blocking member to enter between the latch and the latch interference part; And an operation wire which is connected to the interference blocking member and causes the interference blocking member to overcome the elastic force of the elastic member and to be separated between the latch and the latching interference part when a pulling force is applied.
  • the interference blocking member is installed on the support shaft is installed in the center of the hub shaft unit, the blocking member body to which the operation wire is connected; It is preferably formed to protrude in a cylindrical shape on one surface of the blocking member body, the blocking portion to enter between the latch interference portion and the latch to block the latch and the latch interference portion.
  • the latch interference portion is preferably formed integrally on the inner circumference of the sprocket support unit.
  • the sprocket support unit which is rotatably supported by a support bearing on the outside of the hub shaft unit, a plurality of sprockets are fitted to the outer periphery;
  • 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 latch is preferably formed with a guide surface formed inclined upwardly from the end toward the inner side from the outside of the latch support cap.
  • the end portion of the interference part blocking member that is in contact with the latch is formed to be inclined toward the inner side is preferably a tapered portion formed to face the guide surface of the latch.
  • 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.
  • FIG. 4 is a cross-sectional view showing the main portion of Figure 2b.
  • FIG. 5 is a view illustrating a state in which the interference blocking member enters between the latch and the latch interference unit in the state of FIG. 4.
  • 6 and 7 are diagrams for explaining a state in which gear shift is possible in the stationary state.
  • FIG. 8 is a view 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 a hub shaft unit 20 to which wheels of a bicycle are coupled, and a plurality of sprockets 30 on the outside thereof. 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 21a which is spaced apart from each other on 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 hollow 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 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 to 4) 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 53 preferably has a guide surface 53a formed at an end thereof inclined upward from the outside of the latch support cap 51 toward the inside thereof.
  • the inner circumference of the sprocket support housing 41 that is, the gap between the latch interference portion 57 and the latch 53, is formed gradually closer to the inside of the sprocket support housing 41, and the distance becomes farther toward the outside. Therefore, the interference part blocking member 61 of the latch control unit 60 to be described later can be easily inserted between the latch interference part 57 and the latch 53.
  • 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 an interference part blocking member 61 and a position controller 63 for controlling the position of the interference part blocking member 61.
  • the interference blocking member 61 has a blocking member body 61a movably coupled to the support shaft 1 and a blocking portion 61b protruding in a cylindrical shape from one surface of the blocking member body 61a.
  • the support shaft (1) is coupled to the center of the hub shaft unit 20 is a shaft to which the hub shaft unit 20 is relatively rotatably coupled, such as a bicycle frame can be coupled, the blocking member body (61a) ) May also be slidably installed in the axial direction.
  • the blocking portion 61b moves in the direction of arrow C in a state as shown in FIGS. 2A and 4, that is, positioned outside the latch 53 and the latch interference portion 57, and is located outside.
  • the latch 53 when moved to be positioned between the latch 53 and the latch interference portion 57, the latch 53 is prevented from contacting the latch interference portion 57, and the latch 53 is disposed on the inner circumferential surface of the blocking portion 61b. Be in touch.
  • the sprocket support housing 41 becomes freely rotatable in each of the A and B directions, and thus stops. In this state, the gear can be rotated in the B direction, thereby enabling a gear shift.
  • the tapered portion 61c is preferably formed such that the end portion of the blocking portion 61b is inclined toward the inner diameter, and the blocking portion 61b is contacted with the guide surface 53a of the latch 53. It allows natural entry between the latch 53 and the latch interferer 57 without interfering with the latch 53. That is, as the blocking portion 61b enters between the latch 53 and the latch interference portion 57, the latch 53 is pressed against the inner circumferential surface of the blocking portion 61b so that the blocking portion 61b is naturally spaced apart from the latch interference portion 57. (61b) the inner circumference.
  • the position control unit 63 is for controlling the position of the interference blocking member 61, as an example, a wire holder connected to the operation wire 64 and the operation wire 64 is connected to the interference blocking member 61 ( 65).
  • the wire holder 65 may be fixed to the support shaft 1 or fixed to the bicycle frame.
  • the wire holder 65 may be connected to the interference blocking member 61 while the operation wire 64 is supported.
  • operation wire 64 is connected to an operation lever (not shown) connected to the handle of the bicycle, and the interference part blocking member 61 by allowing the operation wire 64 to be pulled or returned as the bicycle driver operates the operation lever. ) Can be controlled.
  • an elastic member 66 may be further installed between the wire holder 65 and the interference blocking member 61.
  • the elastic member 66 provides an elastic force in the direction in which the interference blocking member 61 enters between the latch interference portion 57 and the latch 53, so that a tensile force (pulling force) is applied to the operation wire 64.
  • the interference blocking member 61 may be moved to a position as shown in FIGS. 5 and 6 by the elastic force of the elastic member 66.
  • the driver pulls the operation wire 64 by operating the operating lever on the handle side the elastic force of the elastic member 66 is overcome, and the interference blocking member 61 is interposed between the latch interference portion 57 and the latch 53. It can be exited and moved to a position as shown in FIG. 4.
  • the configuration of the position control unit 63 may include an operation lever installed on a bicycle handle, and the like.
  • the configuration of the wire operation unit, the operation wire 64, the wire holder 65, and the like is a gear shifting widely applied to a bicycle. Since it can be easily applied from the structure of the lever and the wire or the configuration of the brake lever and the wire further description will be omitted.
  • the position control unit 63 installs a permanent magnet on the interference blocking member 61, and corresponds to the permanent magnet, that is, on the wire holder 65.
  • an interference part blocking member 61 in which the permanent magnet is installed is moved into and out of the latch interference part 57 and the latch 53 while being moved. This can be done.
  • FIGS. 2A, 2B, 3, and 4 show driving states, and in this state, the latch 53 operates normally, so that the sprocket support unit 40 has a hub shaft in one direction (A). It is relatively freely rotatable with respect to the unit 20, and is constrained 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 position control unit 63 is controlled to move the interference blocking unit 61 back to the initial position (the position of FIGS. 2A to 4), and the blocking unit 61b is connected to the latch 53. It exits between the latch interference parts 57, and the latch 53 comes into contact with the latch interference parts 57 again, and interferes.
  • the sprocket support unit 40 is in a state in which free rotation in the other direction B is impossible again.
  • the latch interference portion 57 ′ in which the latch 53 is selectively restrained, the separation preventing cap 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention porte sur une transmission pour une bicyclette, qui comprend : une unité de support de pignon qui est supportée de façon rotative sur une unité d'axe de moyeu à laquelle sont accouplées les roues de la bicyclette, et qui possède une pluralité de pignons supportés sur la partie extérieure de cette unité ; une unité de verrou qui est placée entre l'unité d'axe de moyeu et l'unité de support de pignon de telle sorte que l'unité de verrou permet à l'unité de support de pignon de tourner dans une première direction tout en limitant la rotation dans la direction opposée ; une unité de commande de verrou qui commande sélectivement l'unité de verrou de telle sorte que l'unité de support de pignon peut tourner librement par rapport à l'unité d'axe de moyeu dans la direction opposée de façon à permettre le changement de rapports à l'état arrêté.
PCT/KR2013/006226 2012-07-12 2013-07-11 Transmission pour bicyclette WO2014010976A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120076060A KR101196008B1 (ko) 2012-07-12 2012-07-12 자전거 변속장치
KR10-2012-0076060 2012-07-12

Publications (1)

Publication Number Publication Date
WO2014010976A1 true WO2014010976A1 (fr) 2014-01-16

Family

ID=47288958

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/006226 WO2014010976A1 (fr) 2012-07-12 2013-07-11 Transmission pour bicyclette

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KR (1) KR101196008B1 (fr)
WO (1) WO2014010976A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093261A (en) * 1977-05-09 1978-06-06 Persson Ray S Coaster brake for bicycle with derailleur speed change mechanism
KR960000702A (ko) * 1994-06-14 1996-01-25 마재열 자전거의 전진구동 주행장치
EP1213158A2 (fr) * 2000-12-07 2002-06-12 Shimano Inc. Moyeu de bicyclette
EP1342657A2 (fr) * 2002-03-08 2003-09-10 Shimano Inc. Ensemble de jeu de pignons à chaîne pour bicyclette
JP2005280591A (ja) * 2004-03-30 2005-10-13 Fujiwara Wheel:Kk 自転車用変速装置
KR20090089520A (ko) * 2008-02-19 2009-08-24 김현옥 자전거용 이륜구동형 구동구조
US20100234153A1 (en) * 2008-03-27 2010-09-16 I-Shyong Lu Transmission neutralizing structure for pedal-powered vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093261A (en) * 1977-05-09 1978-06-06 Persson Ray S Coaster brake for bicycle with derailleur speed change mechanism
KR960000702A (ko) * 1994-06-14 1996-01-25 마재열 자전거의 전진구동 주행장치
EP1213158A2 (fr) * 2000-12-07 2002-06-12 Shimano Inc. Moyeu de bicyclette
EP1342657A2 (fr) * 2002-03-08 2003-09-10 Shimano Inc. Ensemble de jeu de pignons à chaîne pour bicyclette
JP2005280591A (ja) * 2004-03-30 2005-10-13 Fujiwara Wheel:Kk 自転車用変速装置
KR20090089520A (ko) * 2008-02-19 2009-08-24 김현옥 자전거용 이륜구동형 구동구조
US20100234153A1 (en) * 2008-03-27 2010-09-16 I-Shyong Lu Transmission neutralizing structure for pedal-powered vehicle

Also Published As

Publication number Publication date
KR101196008B1 (ko) 2012-10-30

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