CN201882225U - Minitype box-type transmission of bicycle - Google Patents
Minitype box-type transmission of bicycle Download PDFInfo
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- CN201882225U CN201882225U CN2010205760588U CN201020576058U CN201882225U CN 201882225 U CN201882225 U CN 201882225U CN 2010205760588 U CN2010205760588 U CN 2010205760588U CN 201020576058 U CN201020576058 U CN 201020576058U CN 201882225 U CN201882225 U CN 201882225U
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Abstract
The utility model discloses a minitype box-type transmission of a bicycle, and is characterized in that the minitype box-type transmission comprises two large parts (namely, a box-type speed change device and a gear shift device); an upper box body and a lower box body are combined to form the box body of the box-type speed change device; a middle shaft and an auxiliary shaft are mounted in the box body; a clutch sleeve and a drive gear are fixedly mounted on the middle shaft; a clutch sleeve and a driven gear are fixedly mounted on the auxiliary shaft; a gear shift fork is used for controlling the engaging and the disengaging of gear clutch teeth and sleeve clutch teeth; the gear shift device is arranged outside the box body of the box-type speed change device; and one end of the gear shift stay wire of the gear shift device is arranged outside. The transmission has the advantages of small, exquisite and compact structure, convenience in use, flexibility and fastness in gear shifting, large transmission ratio range, easiness in manufacture, and low manufacturing cost, and ensures that the climbing capability of the bicycle is very strong, and the speed of the bicycle running on a flat road can be higher. Particularly, fast gear shifting of the bicycle can be realized under various road conditions, and the transmission is easy to be accepted by bicycle lovers. Therefore, the transmission has popularization value.
Description
Technical field
The utility model relates to the bicycle in the vehicle, more specifically relates to a kind of miniature box change-speed box of bicycle.
Background technology
Bicycle claims bicycle or bicycle again.At present, the transmission speed ratio of bicycle has speed ratio to immobilize and adjustable two kinds of speed ratio, the adjustable person of bicycle speed ratio, most Flywheel fluted discs that adopt a plurality of different numbers of teeth of fixed installation on flywheel, adjusting sprocket wheel by chain makes up with the Flywheel fluted disc of the different numbers of teeth, realize different transmission speed ratios, though the mode structure of this change transmission speed ratio is simple, bicycle speed ratio setting range is narrower, it is very difficult to shift gears, when bicycle was climbed bigger sloping of angle, the bicycle speed ratio was still bigger, and climbing is difficult, when bicycle during at the good level road of condition, the bicycle driver wants to ride soon, and less because of the bicycle speed ratio, bicycle is ridden unhappy again.For this reason, someone has invented the bicycle middle shaft change-speed box at the bicycle middle shaft place, want to overcome the narrower deficiency of bicycle speed ratio setting range, as, number of patent application is 200420068975.X, publication number is CN2740527, name is called the technical scheme of " bicycle middle shaft change-speed box ", this bicycle middle shaft change-speed box, it comprises gear wheel, ball, axis, outer housing box, bicycle rack, pedal crank etc., it is that housing box is provided with axis and floral axis in the housing box outside side by side outside the bicycle middle shaft position is provided with, gear wheel and gear wheel gear, the speed change big gear wheel is loaded on the axis, and flat fast gear and change speed pinion are housed on floral axis, stir the flat fast gear that makes on the floral axis and the flat fast gear mesh on the axis by shifter bar, or change speed pinion on the floral axis and the engagement of the speed change big gear wheel on the axis.It is bigger to be somebody's turn to do " bicycle middle shaft change-speed box " structure, structure is reasonable inadequately, variable speed operation is difficulty, the bicycle fan can't accept, so do not have Related product on the market, for this reason, remain to be developed the miniature box change-speed box of bicycle, improve the speed changing effect of bicycle, to satisfy bicycle fan's needs.
Summary of the invention
The purpose of this utility model: and a kind of miniature box change-speed box of bicycle is provided.
The technical solution of the utility model is: a kind of miniature box change-speed box of bicycle, it is characterized in that: miniature box change-speed box is made up of box transmission system and gearshift two large divisions, upper box and lower box are combined into the casing of box transmission system, axis is installed in casing, countershaft, on axis, be installed with clutch sleeve, driving gear, also running-fit has driving gear on clutch sleeve, running-fit has the axis driven gear in the right outer end of axis, sprocket wheel, axis driven gear and sprocket wheel are connected as a single entity, two outer ends at axis are provided with pedal crank, on countershaft, be installed with clutch sleeve, driven gear, also running-fit has driven gear on clutch sleeve, right outer end at countershaft is fixed with countershaft drive gear, countershaft drive gear and the engagement of axis driven gear, driving gear on the axis and the engagement of the driven gear on the countershaft, one end of driving gear on clutch sleeve or driven gear is provided with the yoke shifter other end and is provided with the gears to engage and disengage tooth, on clutch sleeve, be provided with the sleeve clutch tooth, the clutch of yoke shifter pinion clutch tooth and sleeve clutch tooth, gearshift is located at the casing outside of box transmission system, and gear shift backguy one termination of gearshift outside.
Can be in described casing, on axis, from right to left, be installed with one grade of driving gear, second gear driving gear, three-speed clutch sleeve, four-speed clutch sleeve successively, running-fit has third speed drive gear on the three-speed clutch sleeve, and running-fit has the fourth gear driving gear on the clutch sleeve of on fourth; On countershaft, from right to left, be installed with one grade clutch sleeve, the clutch sleeve of second gear, third gear driven gear, fourth gear driven gear successively, running-fit has first speed driven gear on one grade clutch sleeve, and running-fit has the second gear driven gear on the clutch sleeve of second gear; One grade of driving gear and first speed driven gear engagement, the second gear driving gear meshes with the third gear driven gear with second gear driven gear engagement, third speed drive gear, and fourth gear driving gear and fourth gear driven gear mesh.
The miniature box change-speed box of described bicycle, transmitting ratio between one grade of driving gear and the first speed driven gear is 13: 28, transmitting ratio between second gear driving gear and the second gear driven gear is 20: 20, transmitting ratio between third speed drive gear and the third gear driven gear is 25: 15, transmitting ratio between fourth gear driving gear and the fourth gear driven gear is 29: 12, countershaft drive gear and axis driven gear ingear transmitting ratio are 20: 20, and the transmitting ratio of sprocket wheel and flywheel is 28: 16 or 28: 18 or 28: 13.
The miniature box change-speed box of described bicycle, its described gearshift is located at the cabinet shell top of box transmission system, gearshift is mainly by spacing ratchet, the downshift ratchet, the downshift shift fork, the shift-up shift fork, the shift-up ratchet, support, vertical shaft, the shift fork pull back spring, press shift fork pull back spring nut, press spacing ratchet nut, yoke shifter, ratchet, the gear shift overhead cam, cam under the gear shift, the gear shift pull bar, ring washer, backguy is formed, be installed with spacing ratchet on successively from top to bottom on the vertical shaft, the downshift ratchet, the shift-up ratchet, the gear shift overhead cam, cam under the gear shift, cam rotation under gear shift overhead cam on the backguy drive vertical shaft and the gear shift, cam promotes the motion of gear shift pull bar driven gear shift fork successively under the gear shift overhead cam of rotation and the gear shift.
The miniature box change-speed box of described bicycle, is uniform octadentate at its described spacing ratchet, downshift ratchet, shift-up ratchet, whenever draws a backguy just to drive 45 ° of vertical shaft rotations.
The miniature box change-speed box of described bicycle, when shifting up, described gearshift makes the working gear in the box transmission system be in proper order successively:
A. when meshing the closing of sleeve clutch of one grade gears to engage and disengage tooth and a grade, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and one grade of driving gear and first speed driven gear pass carry-over moment, and all the other gears are carry-over moment not;
B. whole gears are carry-over moment not;
C. when meshing the closing of sleeve clutch of the gears to engage and disengage tooth of second gear and second gear, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and second gear driving gear and second gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
D. whole gears are carry-over moment not;
E. when three-speed gears to engage and disengage tooth and the three-speed sleeve clutch is meshing when closing, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and third speed drive gear and third gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
F. whole gears are carry-over moment not;
G. when four-speed gears to engage and disengage tooth and the four-speed sleeve clutch is meshing when closing, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and fourth gear driving gear and fourth gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
H. whole gears are carry-over moment not;
Periodical duty.
The miniature box change-speed box of described bicycle, when downshift, described gearshift makes the working gear in the box transmission system be in proper order successively:
A is when four-speed gears to engage and disengage tooth and the four-speed sleeve clutch is meshing when closing, and remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and fourth gear driving gear and fourth gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
B. whole gears are carry-over moment not;
C. when three-speed gears to engage and disengage tooth and the three-speed sleeve clutch is meshing when closing, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and third speed drive gear and third gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
D. whole gears are carry-over moment not;
E. when meshing the closing of sleeve clutch of the gears to engage and disengage tooth of second gear and second gear, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and second gear driving gear and second gear driven gear pass carry-over moment, and all the other gears are carry-over moment not;
F. whole gears are carry-over moment not;
G. when meshing the closing of sleeve clutch of one grade gears to engage and disengage tooth and a grade, remaining gears to engage and disengage tooth separates with the sleeve clutch tooth, and one grade of driving gear and first speed driven gear pass carry-over moment, and all the other gears are carry-over moment not;
H. whole gears are carry-over moment not;
Periodical duty.
The principle of work of the miniature box change-speed box of bicycle of the present utility model: at the stretcher of people's stepping bicycle, drive the axis rotation in the miniature box change-speed box, driving gear on the axis drives the driven gear rotation on the countershaft, the driven gear of work done drives the countershaft rotation, and the countershaft drive gear that is fixed on the right outer end of countershaft drives axis driven gear and sprocket wheel rotation.The effect of gearshift is exactly that driven gear and the cooresponding clutch sleeve of controlling the driving gear of different gears on the axis and the different gears of countershaft carry out clutch, realizes speed change.
The gear shift of the bicycle that is provided with miniature box change-speed box of the present utility model is very simple, spurs twice backguy, just can realize a gear shift.
The beneficial effects of the utility model: the miniature box transmission design uniqueness of bicycle of the present utility model, structure is small and exquisite, compact, and is easy to use, and gear shift flexibly, fast, gear range is bigger, make easily, productive costs is low, can make the bicycle hill climbing ability extremely strong, level road speed is faster, all can realize fast slewing under the particularly various road conditions, easily be accepted to have the value of popularizing by the bicycle fan.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of ring washer in the utility model;
Fig. 3 is the structural representation of spacing ratchet in the utility model;
Fig. 4 is the structural representation of downshift ratchet in the utility model;
Fig. 5 is the structural representation of gear shift overhead cam in the utility model;
Fig. 6 is the structural representation of downshift shift fork parts in the utility model;
Fig. 7 is the structural representation of the utility model middle gear shift fork;
Fig. 8 is a fourth gear in the utility model, the work scheme drawing when second gear is neutral gear;
Fig. 9 is fourth gear work in the utility model, the work scheme drawing when second gear is neutral gear;
Figure 10 is third gear work in the utility model, the one grade work scheme drawing during for neutral gear;
Figure 11 is third gear in the utility model, the one grade work scheme drawing during for neutral gear;
Figure 12 is the A-A cutaway view among Fig. 1;
Figure 13 is the structural representation of clutch sleeve in the utility model;
Figure 14 is the left view of Figure 13;
Figure 15 is the structural representation that has the gear of gears to engage and disengage tooth in the utility model;
Figure 16 is the right elevation of Figure 15;
Figure 17 is the left view of Figure 15.
Be labeled as among the figure: 1 is spacing ratchet, 2 is the downshift ratchet, 3 is the downshift shift fork, 4 are the shift-up shift fork, 5 are the shift-up ratchet, 6 is support, 7 is vertical shaft, 8 is the shift fork pull back spring, 9 for pressing shift fork pull back spring nut, 10 for pressing spacing ratchet nut, 11 is yoke shifter, 12 is ratchet, 13a is the gear shift overhead cam, 13b is a cam under the gear shift, 14 are the gear shift pull bar, 15 is ring washer, 16 is upper box, 17 are backguy, 18 is the yoke shifter fulcrum, 19 is lower box, 20 is axis, 21 is countershaft, 22 is the fourth gear driven gear, 23 is the fourth gear driving gear, 24 is third speed drive gear, 25 is the third gear driven gear, 26 is the second gear driven gear, 27 is first speed driven gear, 28 is clutch sleeve, 28a is the sleeve clutch tooth, and 28b is the gears to engage and disengage tooth, 29 is countershaft drive gear, 30 is sprocket wheel, 31 is the second gear driving gear, 32 is one grade of driving gear, 33 is the axis driven gear.
The specific embodiment
Below by embodiment, the utility model is further described.
Embodiment
With reference to Fig. 1-Figure 17, a kind of miniature box change-speed box of bicycle, its miniature box change-speed box is made up of box transmission system and gearshift two large divisions, upper box 16 and lower box 19 are combined into the casing of box transmission system, axis 20 is installed in casing, countershaft 21, on axis 20, be installed with clutch sleeve 28, driving gear, also running-fit has driving gear on clutch sleeve 28, running-fit has axis driven gear 33 in the right outer end of axis 20, sprocket wheel 30, axis driven gear 33 and sprocket wheel 30 are connected as a single entity, two outer ends at axis 20 are provided with pedal crank, on countershaft 21, be installed with clutch sleeve 28, driven gear, also running-fit has driven gear on clutch sleeve 28, right outer end at countershaft 21 is fixed with countershaft drive gear 29, countershaft drive gear 29 and 33 engagements of axis driven gear, driven gear engagement on driving gear on the axis 20 and the countershaft 21, one end of driving gear on clutch sleeve 28 or driven gear is provided with yoke shifter 11 other ends and is provided with gears to engage and disengage tooth 28b, on clutch sleeve 28, be provided with sleeve clutch tooth 28a, the clutch of yoke shifter 11 pinion clutch tooth 28b and sleeve clutch tooth 28a, gearshift is located at the casing outside of box transmission system, and gear shift backguy 17 1 terminations of gearshift outside.
In described casing, on axis 20, from right to left, be installed with one grade of driving gear 32, second gear driving gear 31, three-speed clutch sleeve 28, four-speed clutch sleeve 28 successively, running-fit has third speed drive gear 24 on three-speed clutch sleeve 28, and running-fit has fourth gear driving gear 23 on the clutch sleeve 28 of on fourth; On countershaft 21, from right to left, be installed with one grade clutch sleeve 28, the clutch sleeve 28 of second gear, third gear driven gear 25, fourth gear driven gear 22 successively, running-fit has first speed driven gear 27 on one grade clutch sleeve 28, and running-fit has second gear driven gear 26 on the clutch sleeve 28 of second gear; One grade of driving gear 32 meshes with first speed driven gear 27, second gear driving gear 31 and 26 engagements of second gear driven gear, third speed drive gear 24 and 25 engagements of third gear driven gear, fourth gear driving gear 23 and 22 engagements of fourth gear driven gear.
Transmitting ratio between described one grade of driving gear 32 and the first speed driven gear 27 is 13: 20, transmitting ratio between second gear driving gear 31 and the second gear driven gear 26 is 20: 20, transmitting ratio between third speed drive gear 24 and the third gear driven gear 25 is 25: 15, transmitting ratio between fourth gear driving gear 23 and the fourth gear driven gear 22 is 29: 12, countershaft drive gear 29 is 20: 20 with axis driven gear 33 ingear transmitting ratios, and sprocket wheel 30 is 28: 16 with the transmitting ratio of flywheel.
Described gearshift is located at the cabinet shell top of box transmission system, gearshift is mainly by spacing ratchet 1, downshift ratchet 2, downshift shift fork 3, shift-up shift fork 4, shift-up ratchet 5, support 6, vertical shaft 7, shift fork pull back spring 8, press shift fork pull back spring nut 9, press spacing ratchet nut 10, yoke shifter 11, ratchet 12, gear shift overhead cam 13a, cam 13b under the gear shift, gear shift pull bar 14, ring washer 15, backguy 17 is formed, be installed with spacing ratchet 1 on successively from top to bottom on the vertical shaft 7, downshift ratchet 2, shift-up ratchet 5, gear shift overhead cam 13a, cam 13b under the gear shift, cam 13b rotation under gear shift overhead cam 13a on the backguy 17 drive vertical shafts 7 and the gear shift, cam 13b promotes 11 motions of gear shift pull bar 14 driven gear shift forks successively under the gear shift overhead cam 13a of rotation and the gear shift.
Described spacing ratchet 1, downshift ratchet 2, shift-up ratchet 5, be uniform octadentate, whenever draw a backguy 17 just to drive 45 ° of vertical shaft 7 rotations.
When shifting up, described gearshift makes the working gear in the box transmission system be in proper order successively:
A. close when closing as the sleeve clutch tooth 28a of one grade gears to engage and disengage tooth 28b and a grade, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and one grade of driving gear 32 passes carry-over moments with first speed driven gear 27, and all the other gears are carry-over moment not;
B. whole gears are carry-over moment not;
C. close when closing as the sleeve clutch tooth 28a of the gears to engage and disengage tooth 28b of second gear and second gear, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and second gear driving gear 31 passes carry-over moments with second gear driven gear 26, and all the other gears are carry-over moment not;
D. whole gears are carry-over moment not;
E. close when closing as three-speed gears to engage and disengage tooth 28b and three-speed sleeve clutch tooth 28a, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and third speed drive gear 24 passes carry-over moments with third gear driven gear 25, and all the other gears are carry-over moment not;
F. whole gears are carry-over moment not;
G. close when closing as four-speed gears to engage and disengage tooth 28b and four-speed sleeve clutch tooth 28a, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and fourth gear driving gear 23 passes carry-over moments with fourth gear driven gear 22, and all the other gears are carry-over moment not;
H. whole gears are carry-over moment not;
Periodical duty.
When downshift, described gearshift makes the working gear in the box transmission system be in proper order successively:
A is when four-speed gears to engage and disengage tooth 28b and four-speed sleeve clutch tooth 28a close when closing, and remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and fourth gear driving gear 23 passes carry-over moments with fourth gear driven gear 22, and all the other gears are carry-over moment not;
B. whole gears are carry-over moment not;
C. close when closing as three-speed gears to engage and disengage tooth 28b and three-speed sleeve clutch tooth 28a, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and third speed drive gear 24 passes carry-over moments with third gear driven gear 25, and all the other gears are carry-over moment not;
D. whole gears are carry-over moment not;
E. close when closing as the sleeve clutch tooth 28a of the gears to engage and disengage tooth 28b of second gear and second gear, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and second gear driving gear 31 passes carry-over moments with second gear driven gear 26, and all the other gears are carry-over moment not;
F. whole gears are carry-over moment not;
G. close when closing as the sleeve clutch tooth 28a of one grade gears to engage and disengage tooth 28b and a grade, remaining gears to engage and disengage tooth 28b separates with sleeve clutch tooth 28a, and one grade of driving gear 32 passes carry-over moments with first speed driven gear 27, and all the other gears are carry-over moment not;
H. whole gears are carry-over moment not;
Periodical duty.
All gears during carry-over moment, are not equivalent to neutral gear.
This example is in the time of one grade, and the revolution ratio of axis and trailing wheel is: 1: 0.812, climbing power was extremely strong; During on fourth, the revolution ratio of axis and trailing wheel is: 1: 4.23, speed was exceedingly fast during level road.
The sprocket wheel of three-wheel vehicle and the transmitting ratio of flywheel can be 28: 18, and the sprocket wheel of racing car, small-wheel bicycle and the transmitting ratio of flywheel can be 28: 13.
But apply lubrication oil in the casing of miniature box change-speed box.This routine sample car tries through road repeatedly, obtains good effect, receives expert favorable comment.
Claims (5)
1. the miniature box change-speed box of a bicycle, it is characterized in that: miniature box change-speed box is made up of box transmission system and gearshift two large divisions, upper box (16) and lower box (19) are combined into the casing of box transmission system, axis (20) is installed in casing, countershaft (21), on axis (20), be installed with clutch sleeve (28), driving gear, also running-fit has driving gear on clutch sleeve (28), running-fit has axis driven gear (33) in the right outer end of axis (20), sprocket wheel (30), axis driven gear (33) and sprocket wheel (30) are connected as a single entity, two outer ends at axis (20) are provided with pedal crank, on countershaft (21), be installed with clutch sleeve (28), driven gear, also running-fit has driven gear on clutch sleeve (28), be fixed with countershaft drive gear (29) in the right outer end of countershaft (21), countershaft drive gear (29) and axis driven gear (33) engagement, driven gear engagement on driving gear on the axis (20) and the countershaft (21), driving gear on clutch sleeve (28) or an end of driven gear are provided with yoke shifter (11) other end and are provided with gears to engage and disengage tooth (28b), on clutch sleeve (28), be provided with sleeve clutch tooth (28a), the clutch of yoke shifter (11) pinion clutch tooth (28b) and sleeve clutch tooth (28a), gearshift is located at the casing outside of box transmission system, and gear shift backguy (17) one terminations of gearshift outside.
2. the miniature box change-speed box of bicycle according to claim 1, it is characterized in that: in described casing, on axis (20), from right to left, be installed with one grade of driving gear (32), second gear driving gear (31), three-speed clutch sleeve (28), four-speed clutch sleeve (28) successively, going up running-fit at three-speed clutch sleeve (28) has third speed drive gear (24), and the clutch sleeve of on fourth (28) is gone up running-fit fourth gear driving gear (23); On countershaft (21), from right to left, be installed with one grade clutch sleeve (28), the clutch sleeve (28) of second gear, third gear driven gear (25), fourth gear driven gear (22) successively, going up running-fit at one grade clutch sleeve (28) has first speed driven gear (27), and going up running-fit at the clutch sleeve (28) of second gear has second gear driven gear (26); One grade of driving gear (32) and first speed driven gear (27) engagement, second gear driving gear (31) and second gear driven gear (26) engagement, third speed drive gear (24) and third gear driven gear (25) engagement, fourth gear driving gear (23) and fourth gear driven gear (22) engagement.
3. the miniature box change-speed box of bicycle according to claim 2, it is characterized in that: the transmitting ratio between one grade of driving gear (32) and the first speed driven gear (27) is 13: 20, transmitting ratio between second gear driving gear (31) and the second gear driven gear (26) is 20: 20, transmitting ratio between third speed drive gear (24) and the third gear driven gear (25) is 25: 15, transmitting ratio between fourth gear driving gear (23) and the fourth gear driven gear (22) is 29: 12, countershaft drive gear (29) is 20: 20 with axis driven gear (33) ingear transmitting ratio, and sprocket wheel (30) is 28: 16 or 28: 18 with the transmitting ratio of flywheel.
4. the miniature box change-speed box of bicycle according to claim 1, it is characterized in that: described gearshift is located at the cabinet shell top of box transmission system, gearshift is mainly by spacing ratchet (1), downshift ratchet (2), downshift shift fork (3), shift-up shift fork (4), shift-up ratchet (5), support (6), vertical shaft (7), shift fork pull back spring (8), press shift fork pull back spring nut (9), press spacing ratchet nut (10), yoke shifter (11), ratchet (12), gear shift overhead cam (13a), cam under the gear shift (13b), gear shift pull bar (14), ring washer (15), backguy (17) is formed, be installed with spacing ratchet (1) on successively from top to bottom on the vertical shaft (7), downshift ratchet (2), shift-up ratchet (5), gear shift overhead cam (13a), cam under the gear shift (13b), cam (13b) rotation under gear shift overhead cam (13a) on backguy (17) the drive vertical shaft (7) and the gear shift, cam (13b) promotes gear shift pull bar (14) driven gear shift fork (11) motion successively under the gear shift overhead cam (13a) of rotation and the gear shift.
5. the miniature box change-speed box of bicycle according to claim 4, it is characterized in that: described spacing ratchet (1), downshift ratchet (2), shift-up ratchet (5), be uniform octadentate, whenever draw a backguy (17) just to drive 45 ° of vertical shaft (7) rotations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205760588U CN201882225U (en) | 2010-10-25 | 2010-10-25 | Minitype box-type transmission of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205760588U CN201882225U (en) | 2010-10-25 | 2010-10-25 | Minitype box-type transmission of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882225U true CN201882225U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205760588U Expired - Lifetime CN201882225U (en) | 2010-10-25 | 2010-10-25 | Minitype box-type transmission of bicycle |
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| CN (1) | CN201882225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966864A (en) * | 2010-10-25 | 2011-02-09 | 石宗泽 | Micro box-type transmission of bicycle |
| CN105857510A (en) * | 2016-06-07 | 2016-08-17 | 石宗泽 | Single-drawing-line slide block type gear shifting device of miniature speed changing box of bicycle |
| CN105905230A (en) * | 2016-05-27 | 2016-08-31 | 石宗泽 | Miniature gearbox gear shifting support for bicycle |
-
2010
- 2010-10-25 CN CN2010205760588U patent/CN201882225U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966864A (en) * | 2010-10-25 | 2011-02-09 | 石宗泽 | Micro box-type transmission of bicycle |
| CN101966864B (en) * | 2010-10-25 | 2012-12-05 | 石宗泽 | Micro box-type transmission of bicycle |
| CN105905230A (en) * | 2016-05-27 | 2016-08-31 | 石宗泽 | Miniature gearbox gear shifting support for bicycle |
| CN105905230B (en) * | 2016-05-27 | 2018-12-14 | 石幸运 | Miniature gearbox of bicycle fork shift bracket |
| CN105857510A (en) * | 2016-06-07 | 2016-08-17 | 石宗泽 | Single-drawing-line slide block type gear shifting device of miniature speed changing box of bicycle |
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