CN105905230B - Miniature gearbox of bicycle fork shift bracket - Google Patents
Miniature gearbox of bicycle fork shift bracket Download PDFInfo
- Publication number
- CN105905230B CN105905230B CN201610358703.0A CN201610358703A CN105905230B CN 105905230 B CN105905230 B CN 105905230B CN 201610358703 A CN201610358703 A CN 201610358703A CN 105905230 B CN105905230 B CN 105905230B
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- China
- Prior art keywords
- shift fork
- gear
- rack
- top plate
- cantilever
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Classifications
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- 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
Miniature gearbox of bicycle of the invention dials gear bracket and is related to the centre shaft variable speed device of bicycle.Its group of gear bracket is by rack, second gear shift fork, three gear shift forks, spring seat board, four gear shift forks, cantilever spring, one gear shift fork, shift fork pressing plate, screw composition, four gear shift forks and three gear shift forks are equipped in the rectangle empty frames that the front side of the left end of the top plate of rack is arranged, second gear shift fork and a gear shift fork are equipped in the rectangle empty frames of the rear side setting of the right end of the top plate of rack, shift fork on shift fork swings support arm and is placed in shift fork support, shift fork pressing plate is stamped on shift fork support, spring seat board, four cantilever springs are equipped on spring seat board, the cantilever end of each cantilever spring is connect with the shift fork upper branch arm on a shift fork.Of the invention dials gear bracket, has design unique, ingenious, and structurally reasonable, using effect is good, dials gear and stablizes, long service life, the realization of advantageous miniature gearbox of bicycle.
Description
Technical field
The present invention relates to the centre shaft variable speed devices of bicycle, and it is micro- to be more particularly to one of centre shaft variable speed device bicycle
Type gearbox dials gear bracket.
Background technique
Currently, the fluted disc difference pairing on the most chain drums and rear axle using on axis of the speed regulation of bicycle is adjusted the speed,
Transmission speed ratio range is smaller, and transmission speed ratio range is generally between 1 ︰, 1 to 1 ︰ 4.In order to improve the speed changing effect of bicycle, I
Some chain-wheel axle speed changer patents are invented, e.g., entitled " bicycle that axis is equipped with Minitype box-type transmission ", patent
Number be ZL201010518569.9, patent application day be on October 25th, 2010；Entitled " Miniature bicycle box type speed changer ",
Patent No. ZL201010518578.8, patent application day are on October 25th, 2010；These inventions are by bicycle shift range
Being expanded, still, is found in production, use, original miniature gearbox of bicycle group gear supporting structure is not reasonable,
Using effect is poor, dials gear and is not sufficiently stable, and service life is shorter, for this purpose, needing to be explored new miniature gearbox of bicycle group gear
Bracket.
Summary of the invention
The purpose of the present invention: a kind of miniature gearbox of bicycle group gear bracket is provided.
The technical scheme is that a kind of miniature gearbox of bicycle dial gear bracket, which is characterized in that dial gear bracket by
Rack, second gear shift fork, three gear shift forks, spring seat board, four gear shift forks, cantilever spring, a gear shift fork, shift fork pressing plate, screw composition,
Rack is made of metal sheet, and rack is divided into left risers, right risers, left foot plate, right crus of diaphragm plate and top plate, and left foot plate is located at left risers
Lower end, right crus of diaphragm plate is located at the lower end of right risers, and top plate is located between left risers and the upper end of right risers, and eight are equipped on top plate
A shift fork support is equipped with four gear shift forks and three gear shift forks in the rectangle empty frames that the front side of the left end of the top plate of rack is arranged,
Second gear shift fork and a gear shift fork are equipped in the rectangle empty frames of the rear side setting of the right end of the top plate of rack, the shift fork on shift fork is swung
Support arm is placed in shift fork support, and shift fork pressing plate is stamped on shift fork support, and shift fork pressing plate is fixedly connected on rack with screw
On top plate, it is additionally provided with spring seat board on the top plate of rack, four cantilever springs, each cantilever are equipped on spring seat board
The cantilever end of spring is connect with the shift fork upper branch arm on a shift fork, and rack is equipped on the right crus of diaphragm plate and left foot plate of rack and is installed
Hole.
The miniature gearbox of bicycle dial gear bracket, described in second gear shift fork, three gear shift forks, four gear shift forks, one
The shape for keeping off shift fork is all identical, and shift fork is equipped on each shift fork and swings support arm, shift fork upper branch arm, shift fork pusher dog, shift fork is swung
Support arm is two, the right and left being respectively provided in the middle part of shift fork, and 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 left and right lower end of shift fork.
Miniature gearbox of bicycle of the invention dials gear bracket, it is the significant components in miniature gearbox of bicycle, is made
Used time needs that rack is mounted on the cabinet of miniature gearbox of bicycle with screw, and bicycle is micro- under the action of cantilever spring
The clutch pawl of driving gear in type gearbox and the clutch ratchet of fixes sleeve are in normal separated position, when cyclist pulls
As soon as time bracing wire, as soon as make driving lever push a shift fork upper branch arm, have at this time a driving gear clutch pawl and a fixation
The clutch ratchet of sleeve is in meshing state.
Beneficial effects of the present invention: miniature gearbox of bicycle of the invention dials gear bracket, unique, ingenious with design,
Structurally reasonable, using effect is good, dials gear and stablizes, long service life, the realization of advantageous miniature gearbox of bicycle.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural schematic diagram of shift fork.
In the figure, it is marked as rack 1, second gear shift fork 2, three gear shift fork 3, spring seat board 4, four keep off shift fork 5, cantilever spring 6, one
Keep off shift fork 7, shift fork pressing plate 8, screw 9, rack mounting apertures 10, shift fork support 11, shift fork swing support arm 12, shift fork upper branch arm 13,
Shift fork pusher dog 14.
Specific embodiment
Below by embodiment, the present invention is further illustrated.
Embodiment
Referring to Fig.1, Fig. 2, Fig. 3, a kind of miniature gearbox of bicycle group gear bracket, dial gear bracket by rack 1, second gear shift fork
2, three gear shift forks 3, spring seat board 4, four keep off shift fork 5, cantilever spring 6, one keeps off shift fork 7, shift fork pressing plate 8, screw 9 form, rack 1
It is made of metal sheet, rack 1 is divided for left risers, right risers, left foot plate, right crus of diaphragm plate and top plate, and left foot plate is located at left risers
Lower end, right crus of diaphragm plate are located at the lower end of right risers, and top plate is located between left risers and the upper end of right risers, and eight are equipped on top plate
Shift fork support 11 is equipped with four gear shift forks 5 and three gear shift forks 3 in the rectangle empty frames that the front side of the left end of the top plate of rack 1 is arranged,
Second gear shift fork 2 and a gear shift fork 7, dialling on shift fork are equipped in the rectangle empty frames of the rear side setting of the right end of the top plate of rack 1
Fork swings support arm 12 and is placed in shift fork support 11, and shift fork pressing plate 8 is stamped on shift fork support 11, is consolidated shift fork pressing plate 8 with screw 9
Surely it is connected on the top plate of rack 1, spring seat board 4 is additionally provided on the top plate of rack 1, four are equipped on spring seat board 4
Cantilever spring 6, the cantilever end of each cantilever spring 6 is connect with the shift fork upper branch arm 13 on a shift fork, in the right crus of diaphragm of rack 1
Plate and left foot plate are equipped with rack mounting apertures 10.The second gear shift fork 2, three keeps off shift fork 3, four and keeps off the shape that shift fork 5, one keeps off shift fork 7
Shape is all identical, and shift fork is equipped on each shift fork and swings support arm 12, shift fork upper branch arm 13, shift fork pusher dog 14, shift fork swings support arm
12 be two, and the right and left being respectively provided in the middle part of shift fork, shift fork upper branch arm 13 is one, is located at shift fork upper-center, shift fork
Pusher dog 14 is two, is respectively provided at the left and right lower end of shift fork.
Claims (2)
1. a kind of miniature gearbox of bicycle dial gear bracket, which is characterized in that dial gear bracket by rack (1), second gear shift fork (2),
Three gears shift fork (3), spring seat board (4), four gears shift fork (5), cantilever spring (6), gear shift fork (7), shift fork pressing plate (8), screw
(9) it forms, rack (1) is made of metal sheet, and rack (1) is divided into left risers, right risers, left foot plate, right crus of diaphragm plate and top plate, left
Sole is located at the lower end of left risers, and right crus of diaphragm plate is located at the lower end of right risers, and top plate is located between left risers and the upper end of right risers,
It is equipped with eight shift fork supports (11) on top plate, is equipped in the rectangle empty frames that the front side of the left end of the top plate of rack (1) is arranged
Four gears shift fork (5) and three gears shift fork (3) are equipped with second gear in the rectangle empty frames of the rear side setting of the right end of the top plate of rack (1)
Shift fork (2) and one keeps off shift fork (7), and the shift fork on shift fork swings support arm (12) and is placed in shift fork support (11), in shift fork support
(11) it is stamped shift fork pressing plate (8) on, shift fork pressing plate (8) is fixedly connected on the top plate of rack (1) with screw (9), in rack
(1) it is additionally provided with spring seat board (4) above top plate, four cantilever springs (6), each cantilever are equipped on spring seat board (4)
The cantilever end of spring (6) is connect with the shift fork upper branch arm (13) on a shift fork, is set on the right crus of diaphragm plate and left foot plate of rack (1)
Organic frame mounting hole (10).
2. miniature gearbox of bicycle according to claim 1 dials gear bracket, which is characterized in that second gear shift fork (2), three gears are dialled
Fork (3), four gears shift fork (5), the shape of gear shift fork (7) are all identical, and shift fork is equipped on each shift fork and swings support arm (12), dial
Upper branch arm (13), shift fork pusher dog (14) are pitched, it is two that shift fork, which swings support arm (12), the right and left being respectively provided in the middle part of shift fork,
Shift fork upper branch arm (13) is one, is located at shift fork upper-center, and shift fork pusher dog (14) is two, is respectively provided under the left and right of shift fork
End.
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 CN105905230A (en) | 2016-08-31 |
| CN105905230B true 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 |
|---|---|
| CN105905230A (en) | 2016-08-31 |
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| CB03 | Change of inventor or designer information |
Inventor after: Shi Xingyun Inventor before: Shi Zongze |
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| CB03 | Change of inventor or designer information | ||
| 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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