CN202863708U - Bicycle rear derailleur - Google Patents
Bicycle rear derailleur Download PDFInfo
- Publication number
- CN202863708U CN202863708U CN 201220610312 CN201220610312U CN202863708U CN 202863708 U CN202863708 U CN 202863708U CN 201220610312 CN201220610312 CN 201220610312 CN 201220610312 U CN201220610312 U CN 201220610312U CN 202863708 U CN202863708 U CN 202863708U
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- CN
- China
- Prior art keywords
- back seat
- axis hole
- vehicle frame
- torsion spring
- axle
- 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.)
- Expired - Fee Related
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- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
The utility model belongs to a bicycle derailleur and particularly relates to a rear derailleur used on the rear portion of a bicycle and matched with a flywheel. A bicycle rear derailleur comprises a rear seat component, a hinge four bar mechanism and a rocker arm. The rear seat component comprises a rear seat support and an installation component used for installing the rear derailleur on a bicycle frame. A shaft hole is formed in the rear seat support. The installation component is fixedly connected with the bicycle frame through the shaft hole. The installation component comprises a rear seat shaft arranged on the outer side of the shaft hole, a rear seat torsion spring arranged on the inner side of the shaft hole and a connecting device used for being connected with the bicycle frame. The rear seat shaft penetrates the shaft hole and the rear seat torsion spring and is then connected with the connecting device. The bicycle derailleur has the main advantages of being novel in structure, adjustable in tensioning force of a chain, good in generality and smooth in speed change.
Description
Technical field
The utility model belongs to bicycle speed-varying unit, particularly relates to a kind of rear derailleur for bicycle rear portion and flywheel coupling.
Background technology
Dialling the chain device is to change the position of chain on multi-chain gear wheel or multistage flying wheel, makes it to obtain the mechanism of different transmitting ratios, and front chain shifter, rear derailleur, speed setting controller etc. are generally arranged.Rear derailleur wherein comprises rear holder assembly, kink four bar linkage and rocking arm, and kink four bar linkage is installed in rear holder assembly below, and the rocking arm upper end is installed on the kink four bar linkage.Rear holder assembly comprises back rest frame and for the installation component that rear derailleur is installed on the vehicle frame, back rest frame is provided with axis hole, and installation component is captiveed joint with vehicle frame by axis hole.Installation component on the existing bicycle derailleur is simple in structure, install rear derailleur after, rear derailleur and vehicle frame junction are to fix deadly, unadjustable, easily cause the chain can't tensioning or too tensioning, the non-constant of commonality finally causes speed change not smooth.
Summary of the invention
Goal of the invention of the present utility model provides a kind of novel structure, and capable of regulating and commonality are good, the rear derailleur of speed change smoothness.
In order to realize the foregoing invention purpose, the utility model by the following technical solutions:
A kind of bicycle derailleur, comprise rear holder assembly, kink four bar linkage and rocking arm, kink four bar linkage is installed in rear holder assembly below; the rocking arm upper end is installed on the kink four bar linkage; described rear holder assembly comprises back rest frame and is used for rear derailleur is installed in installation component on the vehicle frame; back rest frame is provided with axis hole, and installation component is captiveed joint with vehicle frame by axis hole; Described installation component comprises the back seat axle that is in the axis hole outside and the back seat torsion spring that is connected the axis hole inboard, for the connecting device that is connected with vehicle frame; The back seat axle passes axis hole and back seat torsion spring, is connected with connecting device again.
As preferably, described connecting device for being connected with vehicle frame comprises back seat bolt, adjustment seat and Clip Reed, and described back seat axle passes axis hole and is connected the back seat bolt with the back seat torsion spring, and the back seat bolt passes adjustment seat and Clip Reed clamping.
As preferably, the contact pin that described connecting device for being connected with vehicle frame comprises back seat riveting axle and is used for captiveing joint with vehicle frame, described back seat axle passes axis hole and is connected back seat riveting axle with the back seat torsion spring, and back seat riveting axle and contact pin are riveted.
As preferably, described installation component also comprise outer mould packing ring and in mould packing ring, mould the packing ring pad outward between back seat axle and axis hole, in mould the packing ring pad between back seat torsion spring and connecting device.
Adopt the designed rear derailleur of such scheme to compare with existing rear derailleur, installation component comprises the back seat axle that is in the axis hole outside and the back seat torsion spring that is connected the axis hole inboard, for the connecting device that is connected with vehicle frame, between back seat torsion spring installation axle hole and the connecting device, play the effect of adjusting rear derailleur and position, vehicle frame junction and tensile force, novel structure, for different length chain and other flywheel of speed change level, commonality is good, finally improves the speed change fluency.In a word, the major advantage of this rear derailleur is: novel structure, and the adjustable joint of chain tension dynamics, commonality is good, and speed change is smooth.
Description of drawings
Bicycle derailleur is installed in the mounting structure scheme drawing on the vehicle frame among Fig. 1: the embodiment 1.
The part decomposition explosion figure of holder assembly behind the bicycle derailleur among Fig. 2: the embodiment 1.
Bicycle derailleur is installed in the mounting structure scheme drawing on the vehicle frame among Fig. 3: the embodiment 2.
The part decomposition explosion figure of holder assembly after among Fig. 4: the embodiment 2.
The specific embodiment
The below is described in further detail the technical solution of the utility model by reference to the accompanying drawings.
Embodiment 1:
A kind of bicycle derailleur as depicted in figs. 1 and 2, comprise rear holder assembly 101, kink four bar linkage 102 and rocking arm 103, kink four bar linkage 102 is installed in rear holder assembly 101 belows; rocking arm 103 upper ends are installed on the kink four bar linkage 102; rocking arm 103 is comprised of inner guide plate, outer guide plate, locating wheel and guide wheel; locating wheel and guide wheel are installed between inner guide plate and the outer guide plate, and locating wheel is in the guide wheel top.
Above-mentioned rear holder assembly 101 comprises back rest frame 4, micromatic setting 3, height inhibiting device 7, be used for rear derailleur is installed in installation component on the vehicle frame, and micromatic setting 3 and height inhibiting device 7 are installed on the back rest frame 4.Micromatic setting 3 is by band shift cable perforation micrometer adjusting screw 31, fine setting spring 32 and regulate cap 33, fine setting spring 32 is installed in micrometer adjusting screw 31 and regulates between the cap 33, the line of speed change spool emits and is stuck in micrometer adjusting screw 31 places, and the shift cable end passes line and emits and pass micromatic setting 3 and be fixed on the kink four bar linkage 102.Micromatic setting 3 is used for adjusting the elasticity of shift cable, improves the speed change precision.Height inhibiting device 7 comprises stop screw 71 and the anti-loose spot 72 that is fixed on the back rest frame 4, and stop screw 71 is installed on the anti-loose spot 72.Installation component comprises the back seat axle 6 that is in axis hole 41 outsides, mould packing ring 5 and the back seat torsion spring 9 that is in the axis hole inboard outward, in mould packing ring 10 and the connecting device that is connected being connected with vehicle frame, this connecting device comprises back seat bolt 110, adjustment seat 120 and Clip Reed 130, back seat bolt 110 front end face centers are provided with tapped blind hole, back seat axle 6 passes the outer packing ring 5 of moulding successively, axis hole 41 on the back rest frame, back seat torsion spring 9, in mould packing ring 10, be connected with back seat bolt 110 front threads again, be above-mentioned back seat torsion spring 9 be installed in axis hole 41 and in mould between the packing ring 10, in mould packing ring 10 pad between back seat torsion spring 9 and back seat bolt 110 front end faces.Adjustment seat 120 and Clip Reed 130 clampings are passed in back seat bolt 110 rear portions.This rear derailleur is with after chain stay on the vehicle frame is connected, back seat torsion spring 9 and adjustment seat 120 combineds action, can regulate the dynamics of rear derailleur rocking arm 103 elastic tension backward, can make chain different length be applied in different speed change ranks and have good commonality, guarantee that speed change is smooth.
Embodiment 2:
As shown in Figure 3 and Figure 4, all the other structures of embodiment 2 are identical with embodiment 1, and its difference only is installation component, specifically being used in the installation component connecting device that is connected with vehicle frame.This installation component comprise the back seat axle 6 that is in axis hole 41 outsides, outward mould packing ring 5 and the back seat torsion spring 9 that is connected the axis hole inboard, in mould packing ring 10 and the connecting device that is connected being connected with vehicle frame, this connecting device comprises back seat riveting axle 133 and the contact pin 132 that is used for captiveing joint with vehicle frame, back seat axle 6 passes axis hole 41 is connected with the back seat torsion spring and connects back seat riveting axle 133, back seat riveting axle 133 and contact pin 132 riveted joints.Mould packing ring 5 pad outward between back seat axle 6 and axis hole 41, in mould packing ring 10 and specifically fill up between back seat torsion spring 9 and contact pin 132.
During installation, need only contact pin top be installed on the vehicle frame with mounting screw 18, can finish installation.Can adjust in case of necessity the angle of contact pin, even the size of replacing contact pin is adjusted the position of rear derailleur.
Back seat bolt 110 among the embodiment 1, adjustment seat 120 and Clip Reed 130 are replaced to back seat riveting axle 133 and the structure that contact pin 132 is riveted into one, captive joint with vehicle frame 30 by contact pin 132.By this connection mode, be easy on applicable any vehicle frame, commonality is good, only need to adjust the angle of contact pin and change different size contact pin, can not only adjust the tension force of rocking arm, the problem that existing rear derailleur can only be connected with specific vehicle frame and can't be general has been eliminated in the position of dialling after can also adjusting.
Claims (4)
1. bicycle derailleur, comprise rear holder assembly (101), kink four bar linkage (102) and rocking arm (103), kink four bar linkage (102) is installed in rear holder assembly (101) below; rocking arm (103) upper end is installed on the kink four bar linkage (102); described rear holder assembly (101) comprises back rest frame (4), be used for rear derailleur is installed in installation component on the vehicle frame; back rest frame (4) is provided with axis hole (41), and installation component is captiveed joint with vehicle frame by axis hole (41); It is characterized in that described installation component comprise the back seat axle (6) that is in axis hole (41) outside and the back seat torsion spring (9) that is connected the axis hole inboard, for the connecting device that is connected with vehicle frame; Back seat axle (6) passes axis hole (41) and back seat torsion spring (9), is connected with connecting device again.
2. a kind of bicycle derailleur shown in according to claim 1, it is characterized in that described connecting device for being connected with vehicle frame comprises back seat bolt (110), adjustment seat (120) and Clip Reed (130), described back seat axle (6) passes axis hole (41) is connected 9 with the back seat torsion spring) connect back seat bolt (110), back seat bolt (110) passes adjustment seat (120) and Clip Reed (130) clamping.
3. a kind of bicycle derailleur shown in according to claim 1, it is characterized in that described connecting device for being connected with vehicle frame comprises back seat riveting axle (133) and the contact pin (132) that is used for captiveing joint with vehicle frame, described back seat axle (6) passes axis hole (41) is connected 9 with the back seat torsion spring) connect back seat riveting axle (133), back seat riveting axle (133) is riveted with contact pin (132).
4. the described a kind of bicycle derailleur of any one according to claim 1-3, it is characterized in that described installation component also comprise outer mould packing ring (5) and in mould packing ring (10), mould packing ring (5) pad outward between back seat axle (6) and axis hole (41), in mould packing ring (10) and fill up between back seat torsion spring (9) and connecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610312 CN202863708U (en) | 2012-11-16 | 2012-11-16 | Bicycle rear derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610312 CN202863708U (en) | 2012-11-16 | 2012-11-16 | Bicycle rear derailleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202863708U true CN202863708U (en) | 2013-04-10 |
Family
ID=48030450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610312 Expired - Fee Related CN202863708U (en) | 2012-11-16 | 2012-11-16 | Bicycle rear derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202863708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140236A (en) * | 2022-07-25 | 2022-10-04 | 珠海蓝图控制器科技有限公司 | Front derailleur and bicycle |
-
2012
- 2012-11-16 CN CN 201220610312 patent/CN202863708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140236A (en) * | 2022-07-25 | 2022-10-04 | 珠海蓝图控制器科技有限公司 | Front derailleur and bicycle |
| CN115140236B (en) * | 2022-07-25 | 2023-09-19 | 珠海蓝图运动科技股份有限公司 | Front derailleur and bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131116 |