CN105905230A - Miniature gearbox gear shifting support for bicycle - Google Patents
Miniature gearbox gear shifting support for bicycle Download PDFInfo
- Publication number
- CN105905230A CN105905230A CN201610358703.0A CN201610358703A CN105905230A CN 105905230 A CN105905230 A CN 105905230A CN 201610358703 A CN201610358703 A CN 201610358703A CN 105905230 A CN105905230 A CN 105905230A
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- China
- Prior art keywords
- shift fork
- fork
- shift
- frame
- shifting fork
- 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
- 210000001699 lower leg Anatomy 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002349 favourable 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
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides a miniature gearbox gear shifting support for a bicycle and relates to an intermediate shaft transmission of the bicycle. The gear shifting support for the bicycle is composed of a rack, a second-gear shifting fork, a third-gear shifting fork, a spring seat board, a fourth-gear shifting fork, cantilever springs, a first-gear shifting fork, shifting fork pressing boards and screws. The fourth-gear shifting fork and the third-gear shifting fork are arranged in a rectangular frame arranged on the front side of the left end of a top board of the rack. The second-gear shifting fork and the first-gear shifting fork are arranged in a rectangular frame arranged on the rear side of the right end of the top board of the rack. Shifting fork swinging supporting arms on the shifting forks are placed in shifting fork supports which are covered with the shifting fork pressing boards and the spring seat board. The spring seat board is provided with the four cantilever springs, and the cantilever end of each cantilever spring is connected with an upper shifting fork supporting arm of the corresponding shifting fork. The gear shifting support has the beneficial effects of being unique and ingenious in design, reasonable in structure, good in use effect, stable in gear shifting, long in service life and beneficial to achievement of a miniature gearbox for the bicycle.
Description
Technical field
The present invention relates to the centre shaft variable speed device of bicycle, a kind of miniature gearbox of bicycle fork shift support being more particularly in centre shaft variable speed device.
Background technology
At present, the speed governing majority of bicycle uses the chain drum pairing different from the fluted disc on rear axle on axis to carry out speed governing, and transmission speed ratio scope is less, and transmission speed ratio scope is typically between 11 to 14.In order to improve the speed changing effect of bicycle, some chain-wheel axle speed changer patents of my invention, e.g., entitled the bicycle of Minitype box-type transmission " axis be provided with ", Patent No. ZL201010518569.9, patent application day is on October 25th, 2010；Entitled " Miniature bicycle box type speed changer ", Patent No. ZL201010518578.8, patent application day is on October 25th, 2010；Bicycle shift scope is expanded by these inventions, but, find in producing, using, original miniature gearbox of bicycle fork shift supporting structure is not reasonable, using effect is poor, and fork shift is not sufficiently stable, and service life is shorter, to this end, need to explore new miniature gearbox of bicycle fork shift support.
Summary of the invention
The purpose of the present invention: a kind of miniature gearbox of bicycle fork shift support is provided.
nullThe technical scheme is that a kind of miniature gearbox of bicycle fork shift support，It is characterized in that，Fork shift support is by frame、Two grades of shift forks、Third gear shift fork、Spring seat board、Fourth gear shift fork、Cantilever spring、One grade of shift fork、Shift fork pressing plate、Screw forms，Frame metal sheet is made，Frame is divided into left riser、Right riser、Left foot plate、Right crus of diaphragm plate and top board，Left foot plate is located at the lower end of left riser，Right crus of diaphragm plate is located at the lower end of right riser，Top board is located between the upper end of left riser and right riser，Top board is provided with eight shift fork bearings，It is provided with fourth gear shift fork and third gear shift fork in the rectangle sky frame that the front side of the left end of the top board of frame is provided with，Two grades of shift forks and one grade of shift fork it is provided with in the rectangle sky frame that the rear side of the right-hand member of the top board of frame is provided with，Shift fork on shift fork swings support arm and is placed in shift fork bearing，Shift fork bearing is stamped shift fork pressing plate，With screw, shift fork pressing plate is fixedly connected on the top board of frame，Spring seat board it is additionally provided with on the top board of frame，Spring seat board is provided with four cantilever springs，Shift fork upper branch arm on the cantilever end of each cantilever spring and a shift fork connects，The right crus of diaphragm plate and left foot plate of frame are provided with rack mounting apertures.
Described miniature gearbox of bicycle fork shift support, its two grades of described shift forks, third gear shift fork fourth gear shift fork, one grade of shift fork shape the most identical, shift fork is provided with shift fork and swings support arm, shift fork upper branch arm, shift fork pusher dog, it is two that shift fork swings support arm, being respectively provided at the right and left in the middle part of shift fork, shift fork upper branch arm is one, is located at shift fork upper-center, shift fork pusher dog is two, is respectively provided at the lower end, left and right of shift fork.
The miniature gearbox of bicycle fork shift support of the present invention, it is the significant components in miniature gearbox of bicycle, need during use frame to be arranged on the casing of miniature gearbox of bicycle with screw, under the effect of cantilever spring, the clutch ratchet of the driving gear in miniature gearbox of bicycle and the clutch ratchet of fixing sleeve are in normal separated position, when cyclist pulls a bracing wire, just make driving lever promote a shift fork upper branch arm, the most just have the clutch ratchet of a driving gear and the clutch ratchet of a fixing sleeve to be in engagement.
Beneficial effects of the present invention: the miniature gearbox of bicycle fork shift support of the present invention, has design unique, ingenious, rational in infrastructure, and using effect is good, and fork shift is stable, and service life is long, the realization of favourable miniature gearbox of bicycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of shift fork.
Figure is labeled as: 1, two grades of shift forks 2 of frame, third gear shift fork 3, spring seat board 4, fourth gear shift fork 5,6, one grade of shift fork 7 of cantilever spring, shift fork pressing plate 8, screw 9, rack mounting apertures 10, shift fork bearing 11, shift fork swing support arm 12, shift fork upper branch arm 13, shift fork pusher dog 14.
Detailed description of the invention
Below by embodiment, the present invention is further illustrated.
Embodiment
nullWith reference to Fig. 1、Fig. 2、Fig. 3，A kind of miniature gearbox of bicycle fork shift support，Fork shift support is by frame 1、Two grades of shift forks 2、Third gear shift fork 3、Spring seat board 4、Fourth gear shift fork 5、Cantilever spring 6、One grade of shift fork 7、Shift fork pressing plate 8、Screw 9 forms，Frame 1 is made with metal sheet，Frame 1 is divided into left riser、Right riser、Left foot plate、Right crus of diaphragm plate and top board，Left foot plate is located at the lower end of left riser，Right crus of diaphragm plate is located at the lower end of right riser，Top board is located between the upper end of left riser and right riser，Top board is provided with eight shift fork bearings 11，It is provided with fourth gear shift fork 5 and third gear shift fork 3 in the rectangle sky frame that the front side of the left end of the top board of frame 1 is provided with，Two grades of shift forks 2 and one grade of shift fork 7 it is provided with in the rectangle sky frame that the rear side of the right-hand member of the top board of frame 1 is provided with，Shift fork on shift fork swings support arm 12 and is placed in shift fork bearing 11，Shift fork bearing 11 is stamped shift fork pressing plate 8，With screw 9, shift fork pressing plate 8 is fixedly connected on the top board of frame 1，Spring seat board 4 it is additionally provided with on the top board of frame 1，Spring seat board 4 is provided with four cantilever springs 6，Shift fork upper branch arm 13 on the cantilever end of each cantilever spring 6 and a shift fork connects，The right crus of diaphragm plate and left foot plate of frame 1 are provided with rack mounting apertures 10.Described two grades of shift forks 2,5, one grade of shift fork 7 of third gear shift fork 3 fourth gear shift fork shape the most identical, shift fork is provided with shift fork and swings support arm 12, shift fork upper branch arm 13, shift fork pusher dog 14, it is two that shift fork swings support arm 12, it is respectively provided at the right and left in the middle part of shift fork, shift fork upper branch arm 13 is one, being located at shift fork upper-center, shift fork pusher dog 14 is two, is respectively provided at the lower end, left and right of shift fork.
Claims (2)
- null1. a miniature gearbox of bicycle fork shift support，It is characterized in that，Fork shift support is by frame (1)、Two grades of shift forks (2)、Third gear shift fork (3)、Spring seat board (4)、Fourth gear shift fork (5)、Cantilever spring (6)、One grade of shift fork (7)、Shift fork pressing plate (8)、Screw (9) forms，Frame (1) is made with metal sheet，Frame (1) is divided into left riser、Right riser、Left foot plate、Right crus of diaphragm plate and top board，Left foot plate is located at the lower end of left riser，Right crus of diaphragm plate is located at the lower end of right riser，Top board is located between the upper end of left riser and right riser，Top board is provided with eight shift fork bearings (11)，Fourth gear shift fork (5) and third gear shift fork (3) it is provided with in the rectangle sky frame that the front side of the left end of the top board of frame (1) is provided with，Two grades of shift forks (2) and one grade of shift fork (7) it is provided with in the rectangle sky frame that the rear side of the right-hand member of the top board of frame (1) is provided with，Shift fork on shift fork swings support arm (12) and is placed in shift fork bearing (11)，Shift fork bearing (11) is stamped shift fork pressing plate (8)，With screw (9), shift fork pressing plate (8) is fixedly connected on the top board of frame (1)，Spring seat board (4) it is additionally provided with on the top board of frame (1)，Spring seat board (4) is provided with four cantilever springs (6)，Shift fork upper branch arm (13) on the cantilever end of each cantilever spring (6) and a shift fork connects，The right crus of diaphragm plate and left foot plate of frame (1) are provided with rack mounting apertures (10).
- 2. the miniature gearbox of bicycle fork shift support as described in claim 1, it is characterized in that, two grades of shift forks (2), third gear shift fork (3) fourth gear shift fork (5), one grade of shift fork (7) shape the most identical, shift fork is provided with shift fork and swings support arm (12), shift fork upper branch arm (13), shift fork pusher dog (14), it is two that shift fork swings support arm (12), it is respectively provided at the right and left in the middle part of shift fork, shift fork upper branch arm (13) is one, it is located at shift fork upper-center, shift fork pusher dog (14) is two, is respectively provided at the lower end, left and right of shift fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358703.0A CN105905230B (en) | 2016-05-27 | 2016-05-27 | Miniature gearbox of bicycle fork shift bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358703.0A CN105905230B (en) | 2016-05-27 | 2016-05-27 | Miniature gearbox of bicycle fork shift bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105905230A true CN105905230A (en) | 2016-08-31 |
| CN105905230B CN105905230B (en) | 2018-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610358703.0A Active CN105905230B (en) | 2016-05-27 | 2016-05-27 | Miniature gearbox of bicycle fork shift bracket |
Country Status (1)
| Country | Link |
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| CN (1) | CN105905230B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211952Y (en) * | 1994-09-10 | 1995-11-08 | 李文林 | Speed changing middle shaft of bicycle |
| US5791195A (en) * | 1995-10-19 | 1998-08-11 | Campagnolo S.R.L. | Change control device for a bicycle, particularly a mountain-bike or the like |
| CN2652811Y (en) * | 2003-10-17 | 2004-11-03 | 重庆力帆实业（集团）有限公司 | Gearshift mechanism of motorcycle |
| CN101966864A (en) * | 2010-10-25 | 2011-02-09 | 石宗泽 | Micro box-type transmission of bicycle |
| CN201882225U (en) * | 2010-10-25 | 2011-06-29 | 石宗泽 | Minitype box-type transmission of bicycle |
| CN103935461A (en) * | 2014-04-15 | 2014-07-23 | 石宗泽 | Sliding block type gear shifting device of bicycle miniature gearbox |
| CN205801415U (en) * | 2016-05-27 | 2016-12-14 | 石宗泽 | A kind of miniature gearbox of bicycle fork shift support |
-
2016
- 2016-05-27 CN CN201610358703.0A patent/CN105905230B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211952Y (en) * | 1994-09-10 | 1995-11-08 | 李文林 | Speed changing middle shaft of bicycle |
| US5791195A (en) * | 1995-10-19 | 1998-08-11 | Campagnolo S.R.L. | Change control device for a bicycle, particularly a mountain-bike or the like |
| CN2652811Y (en) * | 2003-10-17 | 2004-11-03 | 重庆力帆实业（集团）有限公司 | Gearshift mechanism of motorcycle |
| CN101966864A (en) * | 2010-10-25 | 2011-02-09 | 石宗泽 | Micro box-type transmission of bicycle |
| CN201882225U (en) * | 2010-10-25 | 2011-06-29 | 石宗泽 | Minitype box-type transmission of bicycle |
| CN103935461A (en) * | 2014-04-15 | 2014-07-23 | 石宗泽 | Sliding block type gear shifting device of bicycle miniature gearbox |
| CN205801415U (en) * | 2016-05-27 | 2016-12-14 | 石宗泽 | A kind of miniature gearbox of bicycle fork shift support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105905230B (en) | 2018-12-14 |
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| C06 | Publication | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Xingyun Inventor before: Shi Zongze |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170620 Address after: 401520 Chongqing city Hechuan City mansion No. 3 unit 1 5-2 Applicant after: Shi Xingyun Address before: Chongqing Hechuan road 401520 No. 666 China field 3 8-3 Applicant before: Shi Zongze |
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