CN103832535A - Rear shifting speed changer of bicycle - Google Patents
Rear shifting speed changer of bicycle Download PDFInfo
- Publication number
- CN103832535A CN103832535A CN201410075658.9A CN201410075658A CN103832535A CN 103832535 A CN103832535 A CN 103832535A CN 201410075658 A CN201410075658 A CN 201410075658A CN 103832535 A CN103832535 A CN 103832535A
- Authority
- CN
- China
- Prior art keywords
- chain
- movable member
- chain guide
- locking piece
- locking
- 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.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a rear shifting speed changer of a bicycle. The rear shifting speed changer comprises a base component, a movable component, a chain guiding element, an initial location positioning mechanism, a pre-tightening mechanism and a location locking mechanism. The chain guiding element can be locked at a specific location relative to the movable component by the aid of the location locking mechanism, the location locking mechanism is provided with a locking element and a contact element, and the locking element rotates around an axis which is basically parallel to a rotation axis; the locking element is mounted on one of the movable component and the chain guiding element, and the contact element is arranged on the other one of the movable component and the chain guiding element. The rear shifting speed changer has the advantages that when a maintenance staff needs to operate the rear shifting speed changer, the chain guiding element can be forwardly shifted to the location at first, then the locking element rotates to be in a working state, the chain guiding element is released, the locking element can be combined with the contact element at the moment, and the contact element is mounted on the chain guiding element, so that the chain guiding element can be locked at the specific location relative to the movable component, a chain can be quite loose when the chain guiding element is locked at the specific location, and various work such as detaching and mounting a rear wheel and a chain of the bicycle can be conveniently and quickly completed by the maintenance staff.
Description
[technical field]
The present invention relates to group chain device in bicycle shift system, more specifically refer to the rear derailleur of bicycle.
[background technology]
Bicycle speed-varying unit generally comprises the speed change driving lever or the speed change handle that are installed on handlebar, is arranged near the front chain shifter of bicycle middle shaft and is arranged near the rear derailleur of bicycle tail end hind axle.Especially for Rear Derailleur, be arranged on bicycle rear shaft owing to thering is the rear flywheel of multiple gear clusters, chain needs again to engage with rear flywheel through rear derailleur simultaneously, under the effect of speed change driving lever or speed change handle, rear derailleur is positioned at chain on gear cluster larger or less on rear flywheel according to different gears.In order fast and accurately chain to be navigated to required gear by user's requirement, rear derailleur is in the time of initial position, top tumbler in chain guide can will produce larger coated region on the tooth of chain minimum in bicycle rear flywheel, be the front of the rotation axis of top tumbler and the axis of bicycle rear shaft in chain guide, between the two, have a larger distance.Such design also produces some problems simultaneously, in the time that maintainer dismantles trailing wheel or rear flywheel, must rear derailleur be pulled to a distance backward with hand, the axis rear that makes the rotation axis of top tumbler in chain guide move on to bicycle rear shaft just can have enough spaces that trailing wheel is pulled down; In the time that maintainer cleans or change chain, also must hand-pull chain and be applied to the power on chain guide to overcome pre-tightening mechanism in rear derailleur simultaneously, to make chain lax.Then chain could be unloaded or is connected.The unusual inconvenience of such installation and maintenance work meeting and uncomfortable.Therefore need to have a kind of mechanism can make chain guide in rear derailleur for movable part, be fixed on a specific position.On this position, i.e. trailing wheel for convenience detach, also can make chain remain on lax state simultaneously, is convenient to safeguard cleaning and erection work.
[summary of the invention]
The object of the invention is is not affecting rear derailleur allomeric function and is not increasing under the prerequisite of rear derailleur overall profile height, can fast and easily dismantle and install the bicycle derailleur of bicycle rear and chain.
In order to solve the technical matters of above-mentioned existence, the present invention adopts following technical proposals:
A kind of bicycle derailleur, it includes:
Be installed to the base component on cycle frame;
Be connected to movably the movable member on base component;
The chain guide being rotationally connected by pivot and movable member is provided with the initial position fix mechanism of chain guide between described chain guide and movable member;
Make chain guide swing the pre-tightening mechanism that is tightened in advance initial position;
For chain guide being locked in for movable member to the position locking mechanism of a specific position, described position locking mechanism has locking piece and contact element, and this locking piece rotates around the axis substantially parallel with rotation axis; Described locking piece is arranged on any part in movable member or chain guide, and contact element is located on another part in these two.
In to the improvement project of above-mentioned bicycle derailleur, described chain guide includes outer chain cage plate, interior chain cage plate, tension wheel and guide wheel.
In to the improvement project of above-mentioned bicycle derailleur, described locking piece is arranged on movable member and can be rotated around anchor shaft by anchor shaft; On that section of anchor shaft that is positioned at locking piece, overlapping to have to make it be adjacent to the spring on movable member; Described contact element is provided in a side of the part that raises up on outer chain cage plate.
In to the improvement project of above-mentioned bicycle derailleur, described contact element is pin or axle class.
In to the improvement project of above-mentioned bicycle derailleur, described initial position fix mechanism includes the raising up part and be located at the part that extends laterally on movable member being located on outer chain cage plate.
In to the improvement project of above-mentioned bicycle derailleur, described pre-tightening mechanism is provided in a side of the torsion spring on movable member.
Compared with prior art, the invention has the beneficial effects as follows: owing to having increased the position locking mechanism of a chain guide, this device, under initial condition, does not contact with contact element, therefore can not affect the normal function that chain guide rotates freely with respect to movable member; But in the time that maintainer need to operate, can first chain guide be pulled forward to a position, then locking piece is turned to mode of operation, then decontrol chain guide, now locking piece can be combined by the contact element on being arranged on chain guide, chain guide is locked in to a specific position with respect to movable member, and in the time of this position, chain can be very lax, and maintainer can complete quickly and easily dismounting and the work in everies such as bicycle rear and chain are installed like this.
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
[brief description of the drawings]
Fig. 1 is the locking piece exploded drawings of the embodiment of the present invention;
Fig. 2 is the front view of the embodiment of the present invention;
Fig. 3 is the lateral plan of the embodiment of the present invention;
Fig. 4 is that the embodiment of the present invention is worked as the lateral plan of its chain guide in the time that movable member turns to maximum position;
Fig. 5 is that the embodiment of the present invention is worked as front view and the partial enlarged drawing of its chain guide in the time that movable member turns to maximum position;
Fig. 6 is front view and the partial enlarged drawing of embodiment of the present invention when its chain guide is locked in to specific control position;
Fig. 7 is the rear view of the locking piece of the embodiment of the present invention;
Fig. 8 is the front view of the locking piece of the embodiment of the present invention.
[detailed description of the invention]
Can clearly be found out by Fig. 1 ~ Fig. 3, being arranged on back lower fork of bicycle tail hooks the rear derailleur with position locking mechanism and generally comprises: anchor shaft 15, base component 20, outside connecting rod member 30, inside connecting rod member 40, movable member 50, outer chain cage plate 60, interior chain cage plate 61, tension wheel 62 and guide wheel 63 and position locking mechanism 70 etc.Wherein position locking mechanism 70 comprises: locking piece 71, anchor shaft 72 and spring 73.In embodiments of the present invention, described chain guide is mainly by outer chain cage plate 60, interior chain cage plate 61, and tension wheel 62 and guide wheel 63 form.Wherein inside and outside chain cage plate 61,60 is fixed on guide wheel 63 and tension wheel 62 between the two by tightening screw axle, and guide wheel and tension wheel can freely rotate around anchor shaft separately.Simultaneously chain guide is by pivot and movable member 50 is pivotable is linked together, and therefore chain guide can rotate with respect to movable member 50 freely around axis Y.Described pre-tightening mechanism typically refers to a torsion spring, generally be assemblied on movable member, described pre-tightening mechanism is tightened in advance initial position when chain guide is rotated around rotation axis Y under the effect of predetermincd tension, and chain guide is positioned at initial position by initial position fix mechanism.Chain guide can turn to different positions with respect to movable member overcoming the predetermincd tension of pre-tightening mechanism.By seeing in Fig. 3, on outer chain cage plate 60, there is the part 60a that raises up near movable member 50 places, corresponding also has one to extend laterally part 50a on movable member 50.Wherein on movable member, extend laterally part 50a by contacting and make chain guide be tightened in advance initial position under the predetermincd tension effect of pre-tightening mechanism with the part 60a that raises up on outer chain cage plate, in the time of this position, chain guide cannot rotate with respect to movable member in the direction of the clock.In the partial enlarged drawing of Fig. 1 and Fig. 3 and Fig. 5, also can clearly see, locking piece 71 in position locking mechanism 70 is be arranged on movable member and can be rotated around anchor shaft 72 by anchor shaft 72, and anchor shaft 72 passes spring 73 and spring 73 is arranged on to the inside of locking piece 71.The rotation axis Y that the axis S that wherein anchor shaft 72 has rotates around movable member 50 with chain guide is parallel substantially.Under the effect of spring 73, locking piece 71 under normal circumstances locking piece lock part 71d is wherein adjacent in a side of movable member 50, at this moment, position locking mechanism 70 does not play a role, and chain guide can freely rotate around rotation axis Y in the situation that overcoming predetermincd tension.In Fig. 4 and Fig. 5, can clearly see, now the locking piece 71 in position locking mechanism and chain guide without any contact.
Can be seen by Fig. 7 and Fig. 8, locking piece 71 is made up of several parts: wherein trigger-like part 71a, the contact portion 71b contacting with movable member, the chain guide lock part 71c contacting with the part 60a that raises up being arranged on outer chain cage plate, locking piece lock part 71d, wherein Fig. 6 is the schematic diagram of position locking mechanism in working order time, user first rotates to a position by graphic hand of rotation R around rotation axis Y by chain guide with a hand, in this position, the part 60a that raises up being arranged on chain guide China and foreign countries chain cage plate must cross the locking piece lock part 71d on locking piece 71, then with another hand, the trigger-like part 71a of locking piece is pulled open to maximum position simultaneously, this is that the contact portion 71b contacting with movable member on locking piece touches on the sidewall of movable member 50, then decontrol lightly that hand of holding chain guide, at this moment the chain guide lock part 71c on locking piece, locking piece lock part 71d contacts and the part 60a that raises up is included in the space being made up of chain guide lock part 71c and locking piece lock part 71d with the part 60a that raises up on outer chain cage plate, the effect of its medium chain guide lock part 71c is to stop chain guide to turn back to initial position under the effect of initial tension of spring, and the effect of locking piece lock part 71d is to prevent that locking piece 71 from turning back to not control position under the effect of spring 73.Under this state, chain guide is locked in a fixed position, at this moment in the situation that there is no predetermincd tension, becomes very lax through the chain on chain guide, convenient for maintaining maintenance and other operation.
When user or maintainer complete after predetermined work, only need be with hand by chain guide to angle of the R direction rotation shown in Fig. 6, at this moment the part 60a that raises up being arranged on outer chain cage plate has just departed from the chain guide lock part 71c by locking piece 71, the ' locked ' zone of locking piece lock part 71d composition, simultaneously under the effect of spring 73, locking piece 71 can be got back to initial position, chain guide is just got back to initial position under the effect of pre-tightening mechanism like this, the part 60a that raises up being arranged on outer chain cage plate extends laterally part 50a contact position on movable member with being arranged on.
Preferably locking piece 71 is arranged on movable member 50 in the present invention, and contact element is arranged on chain guide, in the present embodiment, contact element is provided in a side of the part 60a that raises up on outer chain cage plate 60.But equally also locking piece can be arranged on chain guide and contact element is arranged on movable member.
Preferably, described initial position fix mechanism includes the part 60a and be located at and extend laterally part 50a on movable member of raising up being located on outer chain cage plate 60, the part that raises up like this 60a is both as the contact element of lockout mechanism, makes chain guide be positioned at initial position under pre-tightening mechanism effect again as one of locations of initial position fix mechanism.
Although detailed explanation above there are the various embodiment of feature of the present invention, can adopt without departing from the spirit and scope of the present invention other modification.For example, can change the size of various parts, shape or upper-lower position etc.The function of a part can realize by two, and vice versa.But it will be apparent to one skilled in the art that in the case of and do not depart from the principle of the present invention and spiritual scope of described claim restriction by the disclosure, can the present invention be made a variety of changes or be revised.Therefore, the detailed description of disclosure embodiment is only used for explaining, instead of is used for limiting the present invention, but is defined by the subject-matter of the claims the scope of protection.
Claims (6)
1. a bicycle derailleur, is characterized in that, includes:
Be installed to the base component (20) on cycle frame;
Be connected to movably the movable member (50) on base component (20);
The chain guide being rotationally connected by pivot and movable member (50) is provided with the initial position fix mechanism of chain guide between described chain guide and movable member (50);
Make chain guide swing the pre-tightening mechanism that is tightened in advance initial position;
For chain guide being locked in for movable member to the position locking mechanism of a specific position, described position locking mechanism has locking piece and contact element, and this locking piece rotates around the axis substantially parallel with rotation axis; Described locking piece is arranged on any part in movable member or chain guide, and contact element is located on another part in these two.
2. bicycle derailleur according to claim 1, is characterized in that, described chain guide includes outer chain cage plate (60), interior chain cage plate (61), tension wheel (62) and guide wheel (63).
3. bicycle derailleur according to claim 2, is characterized in that, described locking piece (71) is arranged on movable member (50) above and can be rotated around anchor shaft (72) by anchor shaft (72); Have and can make it be adjacent to the spring (73) on movable member at the upper cover of that section of anchor shaft (72) that is positioned at locking piece (71); Described contact element is provided in a side of the part (60a) that raises up on outer chain cage plate (60).
4. bicycle derailleur according to claim 3, is characterized in that, described contact element is pin or axle.
5. according to the bicycle derailleur described in claim 3 or 4, it is characterized in that, described initial position fix mechanism includes the part (60a) and be located at extend laterally partly (50a) on movable member of raising up being located on outer chain cage plate (60).
6. according to the bicycle derailleur described in claim 1,2,3 or 4, it is characterized in that, described pre-tightening mechanism is provided in a side of the torsion spring on movable member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075658.9A CN103832535B (en) | 2014-03-04 | 2014-03-04 | Bicycle derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075658.9A CN103832535B (en) | 2014-03-04 | 2014-03-04 | Bicycle derailleur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103832535A true CN103832535A (en) | 2014-06-04 |
| CN103832535B CN103832535B (en) | 2016-03-30 |
Family
ID=50796509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410075658.9A Active CN103832535B (en) | 2014-03-04 | 2014-03-04 | Bicycle derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103832535B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111846100A (en) * | 2019-04-30 | 2020-10-30 | 广东顺德顺泰智能运动器材有限公司 | Rear chain shifter of bicycle |
| TWI729124B (en) * | 2016-05-04 | 2021-06-01 | 義大利商坎帕克諾羅公司 | Actuator device for a bicycle gearshift and respective bicycle gearshift |
| US11745827B2 (en) | 2018-04-09 | 2023-09-05 | Rotor Componentes Tecnologicos, S.L. | Bicycle rear derailleur device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0558425B1 (en) * | 1992-02-27 | 1997-04-16 | Mavic S.A. | Speed control apparatus for bicycles |
| JP2004148983A (en) * | 2002-10-30 | 2004-05-27 | Shimano Inc | Bicycle rear derailleur |
| CN1660657A (en) * | 2004-02-26 | 2005-08-31 | 株式会社岛野 | Bicycle derailleur |
| US20110079982A1 (en) * | 2008-12-31 | 2011-04-07 | Patterson Bicycle Transmission Llc | Spiral Rotor Chain Shifting System |
| US20130281237A1 (en) * | 2012-04-23 | 2013-10-24 | Chang Hui Lin | Rear Derailleur |
| CN203332336U (en) * | 2013-01-30 | 2013-12-11 | 株式会社岛野 | Bicycle and bicycle chain shifter |
| CN203727600U (en) * | 2014-03-04 | 2014-07-23 | 钱海泽 | Bicycle rear derailleur |
-
2014
- 2014-03-04 CN CN201410075658.9A patent/CN103832535B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0558425B1 (en) * | 1992-02-27 | 1997-04-16 | Mavic S.A. | Speed control apparatus for bicycles |
| JP2004148983A (en) * | 2002-10-30 | 2004-05-27 | Shimano Inc | Bicycle rear derailleur |
| CN1660657A (en) * | 2004-02-26 | 2005-08-31 | 株式会社岛野 | Bicycle derailleur |
| US20110079982A1 (en) * | 2008-12-31 | 2011-04-07 | Patterson Bicycle Transmission Llc | Spiral Rotor Chain Shifting System |
| US20130281237A1 (en) * | 2012-04-23 | 2013-10-24 | Chang Hui Lin | Rear Derailleur |
| CN203332336U (en) * | 2013-01-30 | 2013-12-11 | 株式会社岛野 | Bicycle and bicycle chain shifter |
| CN203727600U (en) * | 2014-03-04 | 2014-07-23 | 钱海泽 | Bicycle rear derailleur |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI729124B (en) * | 2016-05-04 | 2021-06-01 | 義大利商坎帕克諾羅公司 | Actuator device for a bicycle gearshift and respective bicycle gearshift |
| US11745827B2 (en) | 2018-04-09 | 2023-09-05 | Rotor Componentes Tecnologicos, S.L. | Bicycle rear derailleur device |
| CN111846100A (en) * | 2019-04-30 | 2020-10-30 | 广东顺德顺泰智能运动器材有限公司 | Rear chain shifter of bicycle |
| CN111846100B (en) * | 2019-04-30 | 2022-08-16 | 广东顺德顺泰智能运动器材有限公司 | Rear chain shifter of bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103832535B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203727600U (en) | Bicycle rear derailleur | |
| CN208630792U (en) | Bicycle chain puller | |
| WO2008126735A1 (en) | Stroller | |
| CN103832535A (en) | Rear shifting speed changer of bicycle | |
| TW201730047A (en) | Bicycle chain device | |
| CN203497125U (en) | Bicycle speed-changing gearshift | |
| CN205186449U (en) | Human gravity drive bicycle | |
| CN204437254U (en) | The halting mechanism of automatic transmission, automatic transmission and automobile | |
| CN104071290A (en) | Motorcycle handle brake device with switch knob type parking mechanism | |
| JP2009132343A (en) | Brake lever adjustment device | |
| KR101566579B1 (en) | Power transmission device of chainless bicycle | |
| US20110062678A1 (en) | Chainless bicycle drive system with speed change arrangement | |
| CN102582780B (en) | Bicycle variable speed gear-shifting mechanism with multidirectional release operation | |
| CN202225736U (en) | Reversing operation locking device of tractor | |
| CN203921094U (en) | With the motorcycle handlebar lever brake of switch knob formula halting mechanism | |
| CN202670049U (en) | Forward and reverse driving component for bicycle | |
| CN205499242U (en) | Bicycle chain anticreep device | |
| TWI534039B (en) | Bicycle of the transmission | |
| CN102951226B (en) | Motorcycle head positioning device | |
| CN206520721U (en) | A kind of internal hub transmission operating mechanism | |
| CN205479314U (en) | External gear shift locking means of engine mission | |
| KR101712711B1 (en) | Fixed gears and freewheel gears of single-gear bike freely switching crankset | |
| CN205632877U (en) | Bicycle control device | |
| CN111911623B (en) | Double-clutch preset gear operating mechanism | |
| CN204124314U (en) | For the secondary transmission gearshift control gear of motor tricycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171218 Address after: 528308 Guangdong Province, Foshan city Shunde District Lunjiao Street Chung Hei village Yucheng Road West B building 4 floor two Patentee after: GUANGDONG SHUNDE SHUNTAI BICYCLE PARTS CO., LTD. Address before: 528308 Guangdong province Foshan city Shunde District Lunjiao street family name in the four seat 403 Euro Patentee before: Qian Haize |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528308 2nd Floor, Block B, West of Yucheng North Road, Xiyong Village Committee, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Shunde Shuntai Intelligent Sports Equipment Co., Ltd. Address before: 528308 2nd Floor, Block B, West of Yucheng North Road, Xiyong Village Committee, Lunjiao Street, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG SHUNDE SHUNTAI BICYCLE PARTS CO., LTD. |