CN107434007A - The use pattern switching mechanism of bicycle chain puller - Google Patents
The use pattern switching mechanism of bicycle chain puller Download PDFInfo
- Publication number
- CN107434007A CN107434007A CN201610352209.3A CN201610352209A CN107434007A CN 107434007 A CN107434007 A CN 107434007A CN 201610352209 A CN201610352209 A CN 201610352209A CN 107434007 A CN107434007 A CN 107434007A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- detent
- use pattern
- switching mechanism
- bicycle chain
- 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
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- 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
-
- 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
- B62M9/126—Chain guides; Mounting thereof
-
- 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
- B62M9/131—Front derailleurs
- B62M9/136—Chain guides; Mounting thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The present invention relates to a kind of use pattern switching mechanism of bicycle chain puller, and it includes a body, and its top surface is provided with a storage tank and is articulated in a rotating shaft, rotating shaft is protruded out the bottom of storage tank；One positioning component, it is articulated in a ratchet in storage tank and sets the detent of the relatively close or remote ratchet of simultaneously energy, and at least one elastic component with rotating shaft synchronous axial system, at least one and ratchet neighbour, for applying elastic force to detent to ratchet；One is located at the enclosing cover on body；One switch module, including a support and a control piece, its medium-height trestle is positioned between enclosing cover and positioning component, and control piece is slidably disposed between support and positioning component, and spaced at least one block is protruded out, with the path of motion closer or far from detent；Wherein, ratchet is provided with multiple ratchets of ring-type arranged at equal intervals, and each detent is provided with an engaging tooth being engaged on any ratchet.The present invention can realize the use pattern for allowing user to be switched fast chain guide for use.
Description
Technical field
The present invention relates to a kind of bicycle chain puller, especially with regard to a kind of bicycle that can switch chain guide for use
The use pattern switching mechanism of derailleur.
Background technology
Traditional bicycle chain puller, as described in Publication No. M481882 Taiwan Patent, mainly by one
Pedestal, a linkage and a chain guide for use are formed, and pedestal is fixed on the vehicle frame of bicycle, linkage
It is connected on pedestal and for driving chain guide for use opposite base to produce swing, and the swinging center of chain guide for use
The direct of travel of direction and bicycle is intersected, and then bicycle chain can be directed to the sprocket wheel of the different numbers of teeth
On, reach speed changing effect, and be supplied to the appropriate tension force of chain to ensure smooth movements.
In order that chain is stablized to realize the accurate purpose of speed change, it will usually adds unidirectional resistance machine in chain guide for use
Structure, however, the mechanism and being not provided with related switching device, therefore cause to use upper inconvenience, in Publication No.
US8, a kind of bicycle chain puller is disclosed in 870,692 U.S. patent Nos, it is provided with one on linkage
Control-rod, and by by switching of the control-rod in first position and the second place, realizing the rotation to chain guide for use
Apply different resistances, nonetheless, the control-rod, which does not have still, allows linkage energy opposing chain guiding element to produce
The function of Double-directional rotary, therefore still have improved space.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of use pattern switching mechanism of bicycle chain puller,
It can allow user to be switched fast the use pattern of chain guide for use.
To achieve the above object, the present invention takes following technical scheme：A kind of use pattern of bicycle chain puller
Switching mechanism, it is characterised in that it includes a body, and its top surface is provided with a storage tank and is articulated in a rotating shaft,
The rotating shaft is set to protrude out the bottom of the storage tank；One positioning component, there is a ratchet to be articulated in described accommodating
Set in groove and with the rotating shaft synchronous axial system, at least one and ratchet neighbour and can be relatively close or remote described
The detent of ratchet, and at least one elastic component, the positioning is given for applying elastic force to the ratchet
Ratchet；One is located at the enclosing cover on the body；One switch module, including a support and a control piece, wherein
The support is positioned between the enclosing cover and the positioning component, and the control piece is slidably disposed within the support
Between the positioning component, and spaced at least one block is protruded out, with closer or far from described
The path of motion of detent；Wherein, the ratchet is provided with multiple ratchets of ring-type arranged at equal intervals, each described
Detent is provided with an engaging tooth being engaged on any ratchet.
Preferably, also including a pressure-applying unit, it is arranged between the body and the enclosing cover, with to the spine
Wheel applies resistance.
Preferably, multiple ratchets are disposed on the periphery of the ratchet, the positioning component also has
One retainer locks on the body and abutted with the ratchet, and multiple detents slidings are arranged on
In at least one accommodating hole of the retainer, each elastic component is respectively provided in any accommodating hole.
Preferably, the positioning component also has stator locking on the retainer and covered all described
Accommodating hole, the elastic component is with its both ends contact between the detent and the retainer.
Preferably, the support is positioned between the enclosing cover and the stator, the control piece is slidably set
Between the support and the stator.
Preferably, offering groove on the support, the control piece is made up of a body of rod and a plate body, the bar
Body is protruded out by the plate body and formed through the groove and the enclosing cover, the block.
Preferably, key is stirred in one end connection one that the body of rod protrudes the enclosing cover.
Therefore, user can make the block of control piece away from these detents by adjusting the position of control piece
Path of motion on so that these detents can freely activity and normally play its function, or make control piece
Block is located on the path of motion of these detents, so that these detents are limited in accommodating hole, this
When chain guide for use can with opposing body produce Double-directional rotary.
Brief description of the drawings
Fig. 1 is the stereogram of bicycle chain puller clutch unit in present pre-ferred embodiments；
Fig. 2 is the exploded view of bicycle chain puller clutch unit in present pre-ferred embodiments；
Fig. 3 is the sectional view of 3-3 lines in Fig. 1；
Fig. 4 is the cross sectional plan view of ratchet and positioning ratchet in present pre-ferred embodiments；
Fig. 5 is the decomposing schematic representation of switch module and positioning ratchet in present pre-ferred embodiments.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1 to Figure 3, a kind of clutch of the bicycle chain puller provided by present pre-ferred embodiments
Unit 1, it is arranged between a chain guide card 2 and a linkage (not shown), clutch unit 1 includes one
Body 10, a positioning component 20, a pressure-applying unit 30 and one are located at the enclosing cover 40 on body 10, will be fixed
Hyte part 20 and pressure-applying unit 30 are enclosed in the inner space between body 10 and enclosing cover 40.
Body 10 in hollow tube-shape and is provided with a storage tank 11 in the side for being relatively distant from chain guide card 2, makes chain
The rotating shaft 2a of guide card 2 can run through body 10 and protrude out the bottom center of storage tank 11.Therefore, body 10
What can mutually be rotated is articulated on chain guide card 2.In addition, follow-up explanation is protrude storage tank with rotating shaft 2a 11
What projected direction was described as above.
Positioning component 20 has a ratchet 21, and ratchet 21 is articulated in storage tank 11 centered on rotating shaft 2a,
And with rotating shaft 2a synchronous axial systems, and the periphery of ratchet 21 be provided with ring-type arranged at equal intervals some ratchet 21a；
The locking of the both sides of one retainer 22 is on body 10 and abuts against the periphery of ratchet 21；At least one detent
At least one accommodating hole 23 for being arranged on retainer 22 that 24 (being four in the present embodiment) can linearly slide is (at this
Embodiment is also four) among, and one end of the relatively close ratchet 21 of each detent 24 is equipped with and is used for and spine
The engaging tooth 24a that the ratchet 21a of wheel 21 is meshed；One stator 25 locks above retainer 22 and covered
All accommodating holes 23；And at least one elastic component 26, in the present embodiment be compression spring and quantity is four,
Respectively with its both ends contact between detent 24 and retainer 22, with to ratchet 21 apply elastic force and then
Detent 24.In addition, each ratchet 21a is collectively formed by an inclined plane and a upright stopping surface, make this
Ratchet 21, can only one-directional rotation in the presence of being engaged on by detent 24 on ratchet 21a.In addition,
It need to remark additionally, the quantity of detent 24, accommodating hole 23 and elastic component 26 all only needs one, you can
The holding function of bicycle chain puller is realized, has been not necessarily to multiple to realize.
As shown in figure 4, the periphery of ratchet 21 is provided with 24 ratchet 21a, therefore each ratchet in the present embodiment
The angle theta at 21a and the center of ratchet 21 is 15 degree.In order to improve accuracy, detent 24, accommodating hole 23
And the quantity of elastic component 26 then needs to be provided with multiple, the present embodiment is by the engaging tooth of two adjacent detents 24
24a and angle theta 1, θ 2 and the θ 3 at the center of ratchet 21 (i.e. rotating shaft 2a centers) are respectively set to θ 1=θ 2=
θ 3=33.75 degree (i.e. 360/24*2+ (360/24)/4, wherein N=2) equiangularly spaced arrangement.Based on positioning
The set location of ratchet, the rotation precision of positioning component 20 can be promoted to 3.75 degree from original 15 degree,
Namely improve 4 times.
In other words, it is assumed that the top surface of ratchet 21 is provided with X ratchet 21a, with Y detent 24
In the case of (wherein X is positive integer more than 2, and Y is the positive integer more than or equal to 2), if detent 24
Using equiangularly spaced arrangement, then the accuracy that positioning component 20 rotates is only △=360/X degree；If position spine
Pawl 24 uses the equiangularly spaced arrangement of above-mentioned formula, i.e., two adjacent detents 24 and the angle at the center of ratchet 21
It is set as that △ degree * N spend plus (△/Y), then the rotation precision of positioning component 20 will be promoted to △/Y degree, can
To be substantially improved.
Specifically, detent can't be meshed with the ratchet of ratchet simultaneously, in the present embodiment, these
Detent 24 is meshed with ratchet 21 in turn, so the engaging tooth 24a of only one positioning ratchet 24 every time
It can be meshed with a ratchet 21a of ratchet 21, when ratchet rotates (360/X)/Y degree again, just have in addition
The engaging tooth 24a of one detent 24 is meshed with another ratchet 21a of ratchet 21, that is, allows and turn
Axle 2a rotation accuracy brings up to (360/X)/Y degree really.If necessary, those skilled in the art may also
Allow θ 1, θ 2, θ 3 to do some micro-adjustment, make 1 ≠ θ of θ, 2 ≠ θ 3, will so obtain different accuracy.
As shown in Figure 1 and Figure 2, pressure-applying unit 30 include two be used for clamping ratchet 21 shim pack 31, a pair
Tabular shell fragment 32 and one is set in the collar 33 on rotating shaft 2a, and one is locked together in rotating shaft 2a top surface screws 2b
Interior adjustment bolt 34.Wherein, tabular shell fragment 32 with its both ends contact shim pack 31 top surface and the collar 33
Bottom surface, user can be such that the collar 33 produces up or down by rotating the depth that screws togather of adjustment bolt 34
It is mobile, and then change the lower pressure that tabular shell fragment 32 is applied on pad 31, applied with adjusting positioning component 20
In rotating shaft 2a and the resistance of chain guide for use 2.
Therefore, because detent 24 be through calculating angularly carry out be spaced setting, can be in phase
The rotation accuracy of chain guide for use 2 is improved under same number of components easily.In addition, the ratchet of ratchet can also be set
The periphery in ratchet is put, and detent still can carry out equiangularly spaced arrangement to improve accuracy.
Supplementary notes, as shown in Fig. 2, Fig. 4, Fig. 5, clutch unit 1 is additionally provided with a switch module 50,
It includes a support 51 and a control piece 52, and its medium-height trestle 51 is positioned between enclosing cover 40 and stator 25,
And groove 51a is offered, control piece 52 is by a plate body 53 and a body of rod 54 is integrally formed forms, and plate body 52 can be slided
It is arranged on dynamicly between support 51 and stator 25, and protrudes out four spaced blocks 55 downwards (as schemed
Shown in 5)；The body of rod 54 is upward through groove 51a and the opening 41 positioned at enclosing cover 40, makes one end of the body of rod 54 can
Key 60 is stirred with connection one.Therefore, user can utilize hand to promote and stir key 60 and make the edge of control piece 52
Groove 51a and produce movement, when control piece 52 is located at groove 51a one end, block 55 will not be in detent
On 24 path of motion, make these detents 24 can freely activity and normally play its function (as shown in Figure 4),
But when control piece 52 is located at the groove 51a other end, block 55 is by positioned at the path of motion of detent 24
And stop that these detents 24 make it be limited in accommodating hole 23, now chain guide for use 2 can relatively originally
Body 10 produces Double-directional rotary.In addition, it is necessary to supplementary notes, the quantity of block 55 can be with detent 24
Quantity and adjust, for example, when the quantity of detent 24 is for the moment, the quantity of block 55 is only needed as one,
Can realizes that the function of flowing mode is made in switching.
The various embodiments described above are merely to illustrate the present invention, and structure and size, set location and the shape of each part are all
Can be varied from, on the basis of technical solution of the present invention, it is all according to the principle of the invention to individual part
The improvement of progress and equivalents, it should not exclude outside protection scope of the present invention.
Claims (7)
1. the use pattern switching mechanism of a kind of bicycle chain puller, it is characterised in that it includes：
One body, its top surface are provided with a storage tank and are articulated in a rotating shaft, the rotating shaft is protruded out the appearance
Put the bottom of groove；
One positioning component, have a ratchet be articulated in the storage tank and with the rotating shaft synchronous axial system, at least
One detent that the relatively close or remote ratchet of simultaneously energy is set with the ratchet neighbour, and at least one bullet
Property part, for the ratchet apply elastic force give the detent；
One is located at the enclosing cover on the body；
One switch module, including a support and a control piece, wherein the support be positioned at the enclosing cover with it is described
Between positioning component, the control piece is slidably disposed between the support and the positioning component, and is protruded out
There is spaced at least one block, with the path of motion closer or far from the detent；
Wherein, the ratchet is provided with multiple ratchets of ring-type arranged at equal intervals, and each detent is nibbled provided with one
Close the engaging tooth on any ratchet.
2. the use pattern switching mechanism of bicycle chain puller as claimed in claim 1, it is characterised in that：Also
Including a pressure-applying unit, it is arranged between the body and the enclosing cover, to apply resistance to the ratchet.
3. the use pattern switching mechanism of bicycle chain puller as claimed in claim 2, it is characterised in that：It is more
The individual ratchet is disposed on the periphery of the ratchet, and also there is the positioning component retainer locking to exist
Abutted on the body and with the ratchet, multiple detent slidings are arranged on the retainer extremely
In a few accommodating hole, each elastic component is respectively provided in any accommodating hole.
4. the use pattern switching mechanism of bicycle chain puller as claimed in claim 3, it is characterised in that：Institute
Stating positioning component also has stator locking on the retainer and covers all accommodating holes, the bullet
Property part is with its both ends contact between the detent and the retainer.
5. the use pattern switching mechanism of bicycle chain puller as claimed in claim 4, it is characterised in that：Institute
State support to be positioned between the enclosing cover and the stator, the control piece is slidably disposed within the support and institute
State between stator.
6. the use pattern switching mechanism of bicycle chain puller as claimed in claim 1, it is characterised in that：Institute
State and groove offered on support, the control piece is made up of a body of rod and a plate body, the body of rod through the groove with
The enclosing cover, the block are protruded out by the plate body and formed.
7. the use pattern switching mechanism of bicycle chain puller as claimed in claim 6, it is characterised in that：Institute
Key is stirred in one end connection one for stating the body of rod protrusion enclosing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352209.3A CN107434007B (en) | 2016-05-25 | 2016-05-25 | Usage mode switching mechanism of bicycle derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352209.3A CN107434007B (en) | 2016-05-25 | 2016-05-25 | Usage mode switching mechanism of bicycle derailleur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107434007A true CN107434007A (en) | 2017-12-05 |
| CN107434007B CN107434007B (en) | 2022-10-14 |
Family
ID=60452882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352209.3A Active CN107434007B (en) | 2016-05-25 | 2016-05-25 | Usage mode switching mechanism of bicycle derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107434007B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158293A (en) * | 2020-09-11 | 2021-01-01 | 惠州市元胜自行车配件有限公司 | Rear speed-changing guide wheel position adjusting tool |
| CN112478041A (en) * | 2019-09-11 | 2021-03-12 | 台湾微转股份有限公司 | Bicycle chain puller |
| CN113247169A (en) * | 2021-06-11 | 2021-08-13 | 天津美派电动科技有限公司 | Switch type chain wheel driving mechanism |
| US11834131B1 (en) * | 2022-06-14 | 2023-12-05 | Ad-Ii Engineering Inc. | Rear derailleur |
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| US4406643A (en) * | 1979-12-19 | 1983-09-27 | Shimano Industrial Company Limited | Derailleur for a bicycle |
| JPH0752865A (en) * | 1993-06-10 | 1995-02-28 | Nobuo Ozaki | Derailer for bicycle and speed change system for bicycle employing the derailer |
| US6584875B1 (en) * | 2002-07-09 | 2003-07-01 | Jackson Deng | Ratchet wrench |
| US20090054183A1 (en) * | 2007-08-24 | 2009-02-26 | Shimano, Inc. | Bicycle rear derailleur with a motion resisting structure |
| CN102442403A (en) * | 2010-09-30 | 2012-05-09 | 株式会社岛野 | Bicycle derailleur with rotation resistance |
| US20130203532A1 (en) * | 2012-02-06 | 2013-08-08 | Sram, Llc | Derailleur With Damping Assembly |
| CN205769961U (en) * | 2016-05-25 | 2016-12-07 | 台湾微转股份有限公司 | The use pattern switching mechanism of bicycle chain puller |
-
2016
- 2016-05-25 CN CN201610352209.3A patent/CN107434007B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406643A (en) * | 1979-12-19 | 1983-09-27 | Shimano Industrial Company Limited | Derailleur for a bicycle |
| JPH0752865A (en) * | 1993-06-10 | 1995-02-28 | Nobuo Ozaki | Derailer for bicycle and speed change system for bicycle employing the derailer |
| US6584875B1 (en) * | 2002-07-09 | 2003-07-01 | Jackson Deng | Ratchet wrench |
| US20090054183A1 (en) * | 2007-08-24 | 2009-02-26 | Shimano, Inc. | Bicycle rear derailleur with a motion resisting structure |
| CN102442403A (en) * | 2010-09-30 | 2012-05-09 | 株式会社岛野 | Bicycle derailleur with rotation resistance |
| US20130203532A1 (en) * | 2012-02-06 | 2013-08-08 | Sram, Llc | Derailleur With Damping Assembly |
| CN205769961U (en) * | 2016-05-25 | 2016-12-07 | 台湾微转股份有限公司 | The use pattern switching mechanism of bicycle chain puller |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478041A (en) * | 2019-09-11 | 2021-03-12 | 台湾微转股份有限公司 | Bicycle chain puller |
| CN112478041B (en) * | 2019-09-11 | 2022-06-03 | 台湾微转股份有限公司 | Bicycle chain puller |
| CN112158293A (en) * | 2020-09-11 | 2021-01-01 | 惠州市元胜自行车配件有限公司 | Rear speed-changing guide wheel position adjusting tool |
| CN112158293B (en) * | 2020-09-11 | 2021-11-16 | 惠州市元胜自行车配件有限公司 | Rear speed-changing guide wheel position adjusting tool |
| CN113247169A (en) * | 2021-06-11 | 2021-08-13 | 天津美派电动科技有限公司 | Switch type chain wheel driving mechanism |
| CN113247169B (en) * | 2021-06-11 | 2022-09-30 | 天津美派电动科技有限公司 | Switch type chain wheel driving mechanism |
| US11834131B1 (en) * | 2022-06-14 | 2023-12-05 | Ad-Ii Engineering Inc. | Rear derailleur |
| US20230399076A1 (en) * | 2022-06-14 | 2023-12-14 | Ad-Ii Engineering Inc. | Rear derailleur |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107434007B (en) | 2022-10-14 |
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