CN108032956A - A kind of bicycle derailleur - Google Patents
A kind of bicycle derailleur Download PDFInfo
- Publication number
- CN108032956A CN108032956A CN201810024625.XA CN201810024625A CN108032956A CN 108032956 A CN108032956 A CN 108032956A CN 201810024625 A CN201810024625 A CN 201810024625A CN 108032956 A CN108032956 A CN 108032956A
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- shaft
- wedge surface
- friction
- driven member
- main body
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 claims abstract description 27
- 238000005381 potential energy Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 abstract description 9
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 230000001351 cycling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- B62M9/121—Rear derailleurs
- B62M9/124—Mechanisms for shifting laterally
- B62M9/1244—Mechanisms for shifting laterally limiting or positioning the movement
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Rear chiain-moving device provided by the invention is sequentially connected the foundation means connect, swing mechanism, damping mechanism and fairleader；Damping mechanism includes main body, shaft, friction driving link, friction driven member, torsional spring and elastic component, shaft and is connected with body rotation, and friction driving link is sleeved in shaft；Friction driven member is slidably arranged in main body, between friction driven member and main body, torsional spring is connected between main body and fairleader elastic component, and friction driving link is equipped with the first wedge surface, friction driven member is equipped with the second wedge surface, and the first wedge surface is mutually abutted with the second wedge surface under the pressure of elastic component；Shaft is to during chain relaxation direction rotation, and friction driving link promotes friction driven member movement, and elastic component and torsional spring store elastic potential energy.The rear chiain-moving device provided is invented by the frictional fit between the first wedge surface, the second wedge surface, the change of elastic component, torsional spring realizes that the reset that fairleader is also achieved outside damping buffering is swung, and effectively protects rear chiain-moving device.
Description
Technical field
The present invention relates to a kind of bicycle chain puller, more particularly to a kind of bicycle derailleur.
Background technology
Cycling has become the leisure way and means of transportation of prevalence.Moreover, for amateur and professional people
For member, cycling has become popular competitive sport.No matter bicycle be used for lie fallow, transport or
Contest, bicycle industry are all continuously improving the various devices of bicycle, more preferable usage experience are provided for user.
A kind of bicycle derailleur for having the function of to stablize chain disclosed in existing CN201410773162, it includes
Base component, movable member, the chain guide part and resistance force applying assembly for being pivotally connected to by rotation movable member, resistance applies
Canadian dollar part includes friction and applies component and clutch pack, and the friction applies component and applied by the rotation to clutch pack
Frictional resistance applies frictional resistance so as to the rotary motion to chain guide part；Clutch pack includes first clutch ring and second
Clutch ring, first clutch ring are combined together in a manner of torque transmission with rotation axis, and the rotating shaft axis side on energy edge
To movement, second clutch ring has the axial projection of cylindrical type, and friction applies component and is installed on second clutch ring
It is fitted close on the excircle of cylindrical boss point and with the outer circumference of cylindrical type protrusion, the rotation to second clutch ring
Transhipment is dynamic to apply frictional force.
This kind of bicycle derailleur have the characteristics that to stablize chain position, and after bicycle receives pitch, chain is led
Then produced to part using swing trend of the rotation axis as axle center toward the direction of chain relaxed state, at this time first clutch ring and second
Torque is transmitted between clutch ring, is applied when the active force that pitch produces exceedes friction between component and second clutch ring
Swing toward chain relaxed state direction then occurs for the frictional force and torsional spring power of generation, chain guide part.
This kind of bicycle derailleur there are the problem of be that the rear chiain-moving device merely goes to realize by larger frictional force
Chain guide part is clamped, so as to prevent chain guide part from being swung when jolting.But when the active force that pitch produces exceedes friction
Apply the frictional force produced between component and second clutch ring and torsional spring power after swinging chain guide part, pitch force acts on
At the cooperation of first clutch ring and second clutch ring and stress raiser, the damping mechanism of rear chiain-moving device is caused to damage.
The content of the invention
It is an object of the invention to provide a kind of bicycle derailleur with damping buffering effect.
To achieve the object of the present invention, rear chiain-moving device provided by the invention be sequentially connected the foundation means connect, swing mechanism,
Damping mechanism and fairleader；Damping mechanism includes main body, the shaft being arranged in main body, friction driving link, friction driven member, torsion
Spring and elastic component；Shaft is fixedly connected with fairleader, and shaft is connected with body rotation, and friction driving link is connected in shaft；
Friction driven member is slidably arranged in main body, and friction driven member can be along the axial translation of shaft, and elastic component is positioned at friction driven member
Between main body；Torsion spring set is outer mounted in shaft and is connected between main body and fairleader；The circumferential position of friction driving link is set
There is the first wedge surface, the circumferential position for the driven member that rubs is provided with the pressure of the second wedge surface, the first wedge surface and the second wedge surface in elastic component
Mutually abutted under power；For fairleader when axis is towards front-drive around the shaft, friction driving link promotes friction driven member towards guide chain
Device moves, and elastic component and torsional spring store elastic potential energy.
By such scheme as it can be seen that after rear chiain-moving device is subject to pitch force to act on, produce under the action of fairleader pitch force to
The trend that chain relaxation direction is swung, the driving link that rubs at this time, which rotates, makes the first wedge surface and the second wedge surface cooperate, so that
The driven member that rubs produces rectilinear movement and elastic component and the equal accumulation of energy of torsional spring, fairleader generate it is certain swing so as to pitch force into
Row effectively buffering；After pitch force eliminates, the elastic potential energy release of elastic component and torsional spring, the torque that torsional spring produces is more than frictional force
During the torque of generation, fairleader can return to the home position before swinging, and pass through the friction between the first wedge surface, the second wedge surface
Coordinate and elastic component, the potential variation of torsional spring are realized outside damping buffering, the reset for also achieving fairleader is swung, effectively protection
Rear chiain-moving device.
Further scheme is that face is engaged between the first wedge surface and the second wedge surface, first wedge surface and described the
Two wedge surfaces extend by center of circle arc line shaped of the shaft.
Therefore first face between wedge surface and the second wedge surface be engaged can effective increasing friction force, ensure that damping is slow
The effect of punching.
Further scheme is that at least two first wedge surfaces are uniformly arranged on the circumferential position of friction driving link, at least
Two the second wedge surfaces are uniformly arranged on the circumferential position of friction driven member.
Therefore multiple first wedge surfaces and the second wedge surface equably coordinate on the axial location of shaft, shaft receives
Moment of flexure it is minimum, the frictional force between the first wedge surface and the second wedge surface more uniformly changes into the motive force of friction driven member, resistance
The work of Buddhist nun mechanism is more smooth.
Further scheme is that the oil groove extended using shaft as center of circle arc line shaped is provided with the first wedge surface, and oil groove from
The extension beginning of first wedge surface extends to the extending end of the first wedge surface；Or second be provided with using shaft as center of circle camber line on wedge surface
The oil groove of shape extension, and oil groove extends to the extending end of the second wedge surface from the extension beginning of the second wedge surface.
Therefore the setting of oil groove can ensure the fluency being slidably matched between the first wedge surface and the second wedge surface.
Further scheme is that the rub circumferential position of driving link is provided with locating piece, the circumferential position for the driven member that rubs
The first limited block and the second limited block with circumferential spacing are provided with, locating piece is limited in the first limited block and the second limited block
Between.
Therefore the spacing rotation that friction driving link can be limited between the first limited block and the second limited block of locating piece
Angle.
Further scheme is that damping mechanism further includes sleeve, and sleeve section is L-shaped；Shoulder, sleeve are provided with main body
Be fixed on shoulder, friction driven member be slideably sleeved on sleeve and elastic component be connected to sleeve with friction driven member it
Between, shaft is rotatably assorted through sleeve and with sleeve.
Therefore the sliding stability for the driven member that rubs and the mounting stability of elastic component improve, damping mechanism structure
It is more compact.
Further scheme is that axis hole is provided with main body, and shaft is rotatably assorted with axis hole；Shaft sequentially pass through sleeve,
It is connected after axis hole with fairleader.
Therefore since friction driving link is fixedly connected with shaft, friction driving link is contacted with friction driven member,
Therefore sleeve, friction driven member and elastic component, which are more stably mounted at, is sleeved on outside shaft and positioned at friction driving link and fairleader
Between, the more compact structure of damping mechanism.
Further scheme is that damping mechanism further includes the bearing or bearing shell being arranged between main body and shaft.
Therefore the setting of bearing and bearing shell can guarantee that the fluency rotated between main body and shaft and reduce shaft and turns
Energy loss when dynamic.
Further scheme is that elastic component is disk spring or wavy spring etc..
Further scheme is that first annular groove and the second annular groove are provided with the surface of shaft；First annular groove with
Shaft hole matching, the second annular groove coordinate with sleeve.
Therefore first annular groove and the second annular groove can be used for placing lubricating oil, improve shaft rotating property and
Effectively protection damping mechanism.
Brief description of the drawings
Fig. 1 is the structure chart of bicycle derailleur first embodiment of the present invention.
Fig. 2 is the sectional view of bicycle derailleur first embodiment of the present invention.
Fig. 3 is the structure decomposition figure of bicycle derailleur first embodiment of the present invention.
Fig. 4 is shaft and the structure chart of friction driving link in bicycle derailleur first embodiment of the present invention.
Fig. 5 is the mechanism map of friction driving link and the driven member that rubs in bicycle derailleur first embodiment of the present invention.
Fig. 6 is the sectional view of bicycle derailleur second embodiment of the present invention.
Fig. 7 is the structure decomposition figure of bicycle derailleur second embodiment of the present invention.
Fig. 8 is the structure decomposition figure of bicycle derailleur second embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Embodiment
Bicycle derailleur first embodiment
Referring to Fig. 1, Fig. 1 is the structure chart of bicycle derailleur embodiment of the present invention.Bicycle derailleur includes phase successively
Foundation means 1, swing mechanism 2, damping mechanism 3 and the fairleader 4 of connection, foundation means 1 are used to rear chiain-moving device being installed to certainly
Drive a vehicle on car body, swing mechanism 2 includes first connecting rod 21 and second connecting rod 22, first connecting rod 21 and the company of swing of second connecting rod 22
It is connected between foundation means 1 and damping mechanism 3, the gearshift work of rear chiain-moving device can be realized by swing mechanism 2；Fairleader 4 is used
It is rockably mounted in the installation of the chain interoperation of bicycle, fairleader 4 by shaft on damping mechanism 3.
Referring to Fig. 2, Fig. 2 is the sectional view of bicycle derailleur embodiment of the present invention.Damping mechanism 2 include main body 39 with
And it is arranged on shaft 30, nut 31, packing ring 311, friction driving link 32, friction driven member 33, sleeve 34, elasticity in main body 39
Part 35 and torsional spring 36.Main body 39 includes upper main body 391 and lower main body 392, and upper main body 391 is in lid shape, and lower main body 392 is seat
Body, the lower middle part of main body 392 are provided with stepped hole and form axis hole 393 and the shoulder 394 above axis hole 393.
With reference to Fig. 3 and Fig. 4, Fig. 3 is the structure decomposition figure of bicycle derailleur embodiment of the present invention, and Fig. 4 is the present invention
Shaft and the structure chart of friction driving link in bicycle derailleur embodiment.The extension both ends of shaft 30 are respectively arranged with screw thread
301 and spline 305, shaft 30 has seamed edge section 302 and outside diameter to be more than the shaft shoulder section of seamed edge section 302 screw thread 301 is arranged below, rubs
Wipe the first seamed edge hole that the middle part of driving link 32 is provided through, shaft 30 is through the first seamed edge hole of friction driving link 32, and the
One seamed edge hole coordinates with seamed edge section 302, and then friction driving link 32 is fixed in shaft 30 by gasket 311 and nut 31.
Rubbing, driving link 32 is in the form of annular discs and its interface is U-shaped, where the lower surface towards spline 305 of driving link 32 that rubs
End, friction driving link 32 lower surface include the first basal plane 320 and from the first basal plane 320 extend and the first wedge surface 321,
Two the first wedge surfaces 321 are uniformly distributed on the circumferential position of friction driving link 32, and the first wedge surface 321 is in around shape cloth
Put, have on the first wedge surface 321 with the first basal plane 320 and be connected at maximum height difference between the first basal plane 320 by cambered surface, two
There is interval, two the first wedge surfaces 321 are extended with shaft 30 for center of circle arc line shaped, and friction is actively between a first wedge surface 321
Index protrusion 324 is additionally provided with the circumferential position of part 32.
The section of sleeve 34 is L-shaped, and sleeve 34 includes connected cylindrical portion 341 and block plate portion 342, cylindrical portion 341 and gear
The outer surface of pan portion 342 has seamed edge, and 342 fixed placement of block plate portion is on shoulder 394, and the seamed edge on 394 perisporium of shoulder
Coordinate with block plate portion 341 to prevent sleeve 34 from rotating.Elastic component 35 is disk spring or wavy spring, elastic component 35 and friction from
Moving part 33 is sleeved in cylindrical portion 341 successively, the second seamed edge hole 333 and the cylindrical portion 341 at friction driven member 33 middle part coordinate with
Prevent friction driven member 33 from rotating, friction driven member 33 can be moved relative to the axis linearity of sleeve 34.
The driven member 33 that rubs be in round pie, and the upper surface for the driven member 33 that rubs is provided with the second basal plane 330 and from the second base
The second wedge surface 331 that face 330 extends and rises, two the second wedge surfaces 331 are uniformly distributed in the circumferential position of friction driven member 33
On, and there is interval between two the second wedge surfaces 331, two the second wedge surfaces 331 are extended with shaft 30 for center of circle arc line shaped, the
Have on two wedge surfaces 331 with the second basal plane 330 and be connected at maximum height difference between the second basal plane 330 by cambered surface.Friction from
Index protrusion 334 is additionally provided with the circumferential position of moving part 33.
First wedge surface 321 and the second wedge surface 331 are wedge surface, and wedge surface has difference in level in their extension direction
Inclined outer surface, can realize that active force change or motion state change using the inclined outer surface.
Axis hole 393 runs through the upper and lower ends of lower main body 392, and 30 upper spline of shaft 305 is stretched from 394 one end of shoulder at one end
Enter and pass through axis hole 393, shaft 30 is rotatably assorted with axis hole 393 and is rotatably assorted with sleeve 34.Preferably, shaft 30 is outer
First annular 303 and second annular groove 304 of groove is provided with side face, first annular groove 303 is located in axis hole 393 and faces axis hole
393 inner surface, the second annular groove 304 are located in sleeve 34 and in face of the inner surface of sleeve 34, first annular groove 303 and second
Annular groove 304 can be used for storage lubricating oil to optimize the rotation of shaft 30.
A terminal pad 41 is installed with fairleader 4, the middle part of terminal pad 41 is provided with splined hole 411, terminal pad 41
Upper end set fluted 412, the spline 305 that the slave axis hole 393 of shaft 30 is pierced by is inserted into splined hole 411 and coordinates with it, and under
Main body 392 is provided with annular in the periphery of axis hole 393 and accommodates position, and annular accommodates position and is used to place torsional spring 36, and torsional spring 36 is connected to
Between lower main body 392 and groove 412.Rub the first wedge surface 321 of driving link 32 and the second wedge surface of friction driven member 33 at this time
331 contact under the pressure of elastic component 35, and face is engaged between the first wedge surface 321 and the second wedge surface 331.
The locking journey that the big I of the Interaction Force of first wedge surface 321 and the second wedge surface 331 passes through adjusting nut 31
Degree is realized.Control inlet of the nut 31 relative to screw thread 301, you can realize that friction driving link 32 and friction driven member 33 are turning
Change in location in 30 axial direction of axis, since elastic component 35 is connected between friction driven member 33 and sleeve 34, packing ring 311 and sleeve
Total distance between 34 is determined by the amount of twisting into of nut 31, and the total distance between packing ring 311 and sleeve 34 then affects elasticity
The decrement of part 35, so as to affect the size of the Interaction Force of the first wedge surface 321 and the second wedge surface 331.
With reference to Fig. 5, Fig. 5 is the mechanism of friction driving link and the driven member that rubs in bicycle derailleur embodiment of the present invention
Figure.After rear chiain-moving device is installed on cycle frame and installs chain, the swing of fairleader 4 will produce the tensioning of the chain or
Relaxation change, and be subject to after pitch force and under gravity, fairleader 4 will produce becoming to chain relaxation direction swing
Gesture.During in original state, the lower of the highest point of the first wedge surface 321 and the second wedge surface 331 coordinates, and the second wedge surface 331 is most
Eminence and the lower of the first wedge surface 321 coordinate, and index protrusion 334 and index protrusion 324 are located at same circumferential position at this time.
After pitch force exceedes the rotary resistance of torsional spring, fairleader 4 will drive shaft 30 and friction driving link 32 to chain
The direction switch of bar relaxation, the rotation of friction driving link 32 become the cooperation between the first wedge surface 321 and the second wedge surface 331
Change, with the rotation of friction driving link 32, the highest point of the highest point of the first wedge surface 321 and the second wedge surface 331 moves closer to, by
Fixed in the axial location of friction driving link 32, therefore the cooperation change between the first wedge surface 321 and the second wedge surface 331 is then promoted and rubbed
Wipe driven member 33 toward shaft 30 axial translation and be gradually distance from friction driving link 32, meanwhile, be connected to friction driven member 33 with
Elastic component 35 between block plate portion 342 then stores elastic potential energy by compression, between the first wedge surface 321 and the second wedge surface 331
Frictional force gradually increases, and the rotation stop effect of fairleader 4 is then obvious all the more；Torsional spring 36 follows the swing of fairleader 4 and reverses, this
When, torsional spring 36 stores elastic potential energy.
After being jolted, fairleader 4 produces certain swing and carries out effective damping buffering to pitch force；When pitch force eliminates
Afterwards, the elastic potential energy part of elastic component 35 and torsional spring 36 discharges, and the torque that torsional spring produces is more than the torque that frictional force produces, guide chain
Device 4 can reset to the home position before swinging.
Bicycle derailleur second embodiment
Referring to Fig. 6, Fig. 7 and Fig. 8, Fig. 6 is the sectional view of bicycle derailleur second embodiment of the present invention.Fig. 7 and Fig. 8 difference
For the structure decomposition figure of bicycle derailleur second embodiment different visual angles of the present invention.In the damping mechanism of the present embodiment, rub
Wipe driving link 53 and rub driven member 54 with it is different in first embodiment.It is again provided with the friction driving link 53 of plate-like
The first wedge surface of twice 530 circumferentially, and two extended with shaft 50 for center of circle arc line shaped are provided with the first wedge surface 530
Road oil groove 531, and oil groove 531 extends to the extending end of the first wedge surface 530 from the extension beginning of the first wedge surface 530.Oil groove 531
Section be semicircle, be more conducive to the affine of lubricating oil and 531 groove face of oil groove, oil groove 531 can store lubricating oil, friction driving link
It can ensure fluency during the second wedge surface frictional fit of 53 the first wedge surface 530 and friction driven member 54, while protect component.
In addition, the circumferential position of friction driving link 53 is provided with locating piece 532, the circumferential position of friction driven member 54 is set
There are the first limited block 542 and the second limited block 543 with circumferential spacing, locating piece 532 is spacing in the first limited block 542 and the
On circumferential position between two limited blocks 543, friction driving link 53 rotational angle be restricted, and when friction driving link 53 by
When resetting rotation to the active force of elastic component and torsional spring, the spacing cooperation between 532 and first limited block 542 of locating piece can be prevented
Only rub 53 inordinate rotation of driving link.
In addition, bearing 52, bearing are further included to the damping mechanism compared with the damping mechanism in first embodiment, the present embodiment
52 are arranged in the axis hole 510 of lower main body 51 and between shaft 50 and the inner wall of lower main body 51.The bearing 52 of metal material
Can be with 51 integrated injection molding of lower main body of plastic material, the convex portion 521 of 52 periphery of bearing and the recess on lower 51 inner wall of main body
511 coordinate to improve structural soundness.First annular groove 501 in shaft 50 is then located at the interior table in axis hole 510 with bearing 52
Face coordinates.
Rear chiain-moving device provided by the invention passes through the frictional fit between the first wedge surface, the second wedge surface and elastic component, torsion
The potential variation of spring realizes outside damping buffering that the reset for also achieving fairleader is swung, and effectively protects rear chiain-moving device.
Finally it is emphasized that the foregoing is merely the preferred embodiment of the present invention, it is not intended to limit the invention, it is right
For those skilled in the art, the present invention can have various change and change, within the spirit and principles of the invention,
Any modification, equivalent substitution, improvement and etc. done, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of bicycle derailleur, including the foundation means connect, swing mechanism, damping mechanism and fairleader are sequentially connected,
It is characterized in that：
The damping mechanism include main body, be arranged in the main body shaft, friction driving link, friction driven member, torsional spring and
Elastic component；
The shaft is fixedly connected with the fairleader, and the shaft is connected with the body rotation, the friction driving link connection
It is connected in the shaft；
It is described friction driven member be slidably arranged in the main body, it is described friction driven member can along the axial translation of the shaft,
The elastic component is between the friction driven member and the main body；
The torsion spring set is outer mounted in the shaft and is connected between the main body and the fairleader；
The circumferential position of the friction driving link is equipped with the first wedge surface, and the circumferential position of the friction driven member is equipped with the second wedge
Face, first wedge surface are mutually abutted with second wedge surface under the pressure of the elastic component；
For the fairleader when axis is towards front-drive around the shaft, friction driving link promotes friction driven member towards the fairleader
Mobile, the elastic component and the torsional spring store elastic potential energy.
2. bicycle derailleur according to claim 1, it is characterised in that：
Face is engaged between first wedge surface and second wedge surface, and first wedge surface and second wedge surface are with institute
Shaft is stated for center of circle arc line shaped to extend.
3. bicycle derailleur according to claim 2, it is characterised in that：
At least two first wedge surfaces are uniformly arranged on the circumferential position of the friction driving link, and at least two described second
Wedge surface is uniformly arranged on the circumferential position of the friction driven member.
4. bicycle derailleur according to claim 2, it is characterised in that：
It is provided with the oil groove extended using the shaft as center of circle arc line shaped on first wedge surface, and the oil groove is from described first
The extension beginning of wedge surface extends to the extending end of first wedge surface；
Or,
It is provided with the oil groove extended using the shaft as center of circle arc line shaped on second wedge surface, and the oil groove is from described second
The extension beginning of wedge surface extends to the extending end of second wedge surface.
5. bicycle derailleur according to claim 2, it is characterised in that：
The circumferential position of the friction driving link is provided with locating piece, and the circumferential position of the friction driven member was provided with week
To the first limited block and the second limited block of spacing, the locating piece is limited in first limited block and second limited block
Between.
6. bicycle derailleur according to claim 3, it is characterised in that：
The damping mechanism further includes sleeve, and the sleeve section is L-shaped；
Shoulder is provided with the main body, the sleeve is fixed on the shoulder, and the friction driven member is slideably set with
On the sleeve and the elastic component is connected between the sleeve and the friction driven member, and the shaft passes through the set
Cylinder is simultaneously rotatably assorted with the sleeve.
7. bicycle derailleur according to claim 6, it is characterised in that：
Axis hole is provided with the main body, the shaft is rotatably assorted with the axis hole；
The shaft is connected after sequentially passing through the sleeve, the axis hole with the fairleader.
8. bicycle derailleur according to claim 7, it is characterised in that：
The damping mechanism further includes the bearing or bearing shell being arranged between the main body and the shaft.
9. according to claim 1 to 8 any one of them bicycle derailleur, it is characterised in that：
The elastic component is disk spring or wavy spring.
10. according to claim 1 to 8 any one of them bicycle derailleur, it is characterised in that：
First annular groove and the second annular groove are provided with the surface of the shaft；
The first annular groove and the shaft hole matching, second annular groove coordinate with the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024625.XA CN108032956B (en) | 2018-01-11 | 2018-01-11 | Bicycle rear derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024625.XA CN108032956B (en) | 2018-01-11 | 2018-01-11 | Bicycle rear derailleur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108032956A true CN108032956A (en) | 2018-05-15 |
| CN108032956B CN108032956B (en) | 2023-11-24 |
Family
ID=62099085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810024625.XA Active CN108032956B (en) | 2018-01-11 | 2018-01-11 | Bicycle rear derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108032956B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086597A (en) * | 2018-10-24 | 2020-05-01 | 禧玛诺（新）私人有限公司 | Bicycle speed variator |
| CN111717327A (en) * | 2019-03-18 | 2020-09-29 | 佶庆电机有限公司 | Protection structure of electric chain shifter |
| CN112623103A (en) * | 2020-12-17 | 2021-04-09 | 兰溪智行云运动科技有限公司 | Friction-free constant damping chain shifter for bicycle |
| CN112849330A (en) * | 2021-01-22 | 2021-05-28 | 广东顺德顺泰智能运动器材有限公司 | Rear chain shifter of bicycle |
| TWI807959B (en) * | 2021-08-23 | 2023-07-01 | 吳博睿 | Transmission device |
| TWI807867B (en) * | 2022-06-17 | 2023-07-01 | 台灣微轉股份有限公司 | Rear derailleur |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270121A (en) * | 1999-04-13 | 2000-10-18 | 坎培诺洛有限公司 | Rear shifter of bicycle |
| CN101152894A (en) * | 2006-09-25 | 2008-04-02 | 株式会社岛野 | Bicycle rear derailleur |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111086597A (en) * | 2018-10-24 | 2020-05-01 | 禧玛诺（新）私人有限公司 | Bicycle speed variator |
| CN111086597B (en) * | 2018-10-24 | 2021-12-21 | 禧玛诺（新）私人有限公司 | Bicycle speed variator |
| CN111717327A (en) * | 2019-03-18 | 2020-09-29 | 佶庆电机有限公司 | Protection structure of electric chain shifter |
| CN112623103A (en) * | 2020-12-17 | 2021-04-09 | 兰溪智行云运动科技有限公司 | Friction-free constant damping chain shifter for bicycle |
| CN112849330A (en) * | 2021-01-22 | 2021-05-28 | 广东顺德顺泰智能运动器材有限公司 | Rear chain shifter of bicycle |
| CN112849330B (en) * | 2021-01-22 | 2023-07-21 | 广东顺德顺泰智能运动器材有限公司 | Bicycle rear derailleur |
| TWI807959B (en) * | 2021-08-23 | 2023-07-01 | 吳博睿 | Transmission device |
| TWI807867B (en) * | 2022-06-17 | 2023-07-01 | 台灣微轉股份有限公司 | Rear derailleur |
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| CN108032956B (en) | 2023-11-24 |
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