CN2120077U - Bicycle with inner gearbox - Google Patents
Bicycle with inner gearbox Download PDFInfo
- Publication number
- CN2120077U CN2120077U CN 91232862 CN91232862U CN2120077U CN 2120077 U CN2120077 U CN 2120077U CN 91232862 CN91232862 CN 91232862 CN 91232862 U CN91232862 U CN 91232862U CN 2120077 U CN2120077 U CN 2120077U
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- China
- Prior art keywords
- gear
- driven
- drive
- speed
- axis
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Abstract
The utility model relates to a traffic tool instead of walking, particularly a bicycle with an inner gearbox. The utility model comprises handle-bars, a front fork, a vehicle frame, front and back wheels and a speed-changing transmission device; the central axis of the speed changing transmission device is provided with driving gears of different size; the driving gears respectively match with driven gears of different diameters installed in parallel on a driven axis to form a chain transmission mechanism with different transmitting ratio; a clutch which can slide leftwards and rightwards along the axis and can drive the driven gears to rotate is installed on the driven axis. The utility model has the advantages of simple structure and obvious speed changing effect, and can change the present status that the chain wheel of a speed-changing bicycle is exposed outside.
Description
The utility model relates to a kind of vehicle of riding instead of walk, and a kind of bicycle of novel internal speed-changing device especially is housed.
At present, popular derailleur on the market all is to rely on to change speed and the power that mechanically operated method changes bicycle.These transmission systems roughly are divided into two kinds, and a kind of is to rely on gear mesh, changes transmitting ratio; Another kind, what just sell on the market modally is, by settling big minor sprocket on the axle drive shaft and being installed in side by side that the different driven sprocket of several diameters constitutes the pleiotaxy speed-changing mechanism on the wheel shaft.Variable speed bicycle with gear mesh forms damages easily, and service life is short, and maintenance is also very difficult.The pleiotaxy speed-changing mechanism, chain needs to move on to another sprocket wheel from a sprocket wheel during speed change, and friction force is big when mobile, and speed change is very inconvenient, and sprocket wheel all exposes outside, is stained with dust easily, influences service life and driving efficiency.
Task of the present utility model provides the novel inner speed change bicycle that a kind of speed change is sensitive convenient, simple in structure, assembling is easy, speed changing effect is good.
Novel inner speed change bicycle described in the utility model is made up of handlebar, front fork, vehicle frame, front and rear wheel, variable-speed drive.The driving gear that varies in size is housed on the axis of this variable-speed drive, their different with the diameter of installing arranged side by side on the driven axle respectively driven gears are formed the chain drive of different drive ratios, installing one side by side with driven gear on driven axle can horizontally slip along driven axle, and can drive the power-transfer clutch that driven gear rotates.
There is plush copper in two outsides in the power-transfer clutch upper surface of variable-speed drive, and they can be interlocked with the end tooth groove on the driven gear on the driven axle.When plush copper and left side driven gear end tooth groove fastening, the driven gear that power-transfer clutch drives the left side rotates, and power-transfer clutch is stirred to the right, and when plush copper and the right driven gear end tooth groove were interlocked, the driven gear on the right of just driving rotated.
Horizontally slip in order to stir power-transfer clutch, can on power-transfer clutch, fix a shift fork.
Can be several gears of imput shaft, except that a driving gear that will drive the driven gear rotation, all the other all can be processed into a gear cluster integral body, to save cost, simplified structure.
The driven gear that is driven by driving gear on driven axle is a gear that has ratchet, and a ratchet is housed between axis and gear cluster.
The utility model is simple in structure, and change-speed box can be loaded onto a shell, and system can adorn a whole chain cover with hind axle bonded assembly chain pitch wheel, has changed the exposed present situation of variable speed bicycle sprocket wheel.And the utility model speed changing effect is remarkable, and not only power-transfer clutch can change a kind of or two kinds of speed, and original gear gets a kind of speed, so this novel inner speed change bicycle can change two kinds or three kinds of speed.In addition, can obtain more speed as long as change the number of gears of pairing.
Accompanying drawing is a kind of embodiment of the present utility model, below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the cutaway view of variable-speed drive in the utility model
Fig. 2 is the A-A part sectional view of variable-speed drive in the utility model.
Fig. 3 is the B-B part sectional view of variable-speed drive in the utility model.
Accompanying drawing is a kind of derailleur that changes three kinds of speed.A driving gear (4) is housed on the axis that has step (1) (2), reach driving gear (5), (13), (14), a single-piece gear cluster is processed in driving gear (5), (13), (14), and a ratchet (3) (see figure 3) is housed between this gear cluster and the axis (2).The driven gear (8) of a band ratchet (7) and driven gear (9), (12) are housed on the driven axle (6), between driven gear (9) and driven gear (12) power-transfer clutch (10) is housed, it is connected with flat key (11) with driven axle (6).There is plush copper in two outsides of power-transfer clutch (10) upper surface, and these plush coppers can be interlocked with driven gear (9) or driven gear (12) end face groove respectively, fix a shift fork (16) at power-transfer clutch (10) middle part.Driving gear on the axis (2) respectively with driven axle on driven gear be connected with chain, driving gear (13) cogs with hind axle and is connected with chain.The transmitting ratio of respectively organizing gear in the present embodiment is: Z4:Z8=1:2, Z9:Z5=1:1.25, Z12:Z14=1:0.7, Z13: rear axle gear=1:2.The change-speed box portion of external is sealed with housing (15), and driving gear (12) is loaded onto whole chain cover with the hind axle gear.During use, if ride with common speed, shift fork (16) is dialled power-transfer clutch (8) at midway location, and step (1) drives axis (2) and rotates, and gear (4) and gear (13) are all rotated with axis, drives hind axle by chain and rotates, and bicycle advances.If needing middling speed dials power-transfer clutch (10) left with shift fork (16), the end tooth groove of power-transfer clutch (10) left side plush copper and driven gear (9) is interlocked, step (1) is rotated and is driven driving gear (4) and driven gear (8) rotation, thereby makes driven gear (8) drive driven axle.Because power-transfer clutch (10) rotates with driven axle, thereby power-transfer clutch (10) drives driven gear (9) and driving gear (5) rotates, and rotates thereby make driving gear (13) drive hind axle, and the bicycle middling speed is advanced.If need fast, with shift fork (16) power-transfer clutch (10) is dialled to the right, the end tooth groove of power-transfer clutch (10) the right plush copper and driven gear (12) is interlocked, in like manner, along with step (1) is rotated, power-transfer clutch (10) drives driven gear (12) and driving gear (14) rotates, and rotates thereby make driving gear (13) drive hind axle, and bicycle advances fast.
If only need change two kinds of speed, can omit one group of chain drive at axis and driven axle and just can reach the speed change purpose.
Claims (5)
1, a kind of novel inner speed change bicycle of forming by handlebar, front fork, vehicle frame, front and rear wheel, variable-speed drive, it is characterized in that on the axis (2) of this variable-speed drive the driving gear that varies in size being housed, their go up the chain drive that the different driven gear of the diameter installed is side by side formed different drive ratios with driven axle (6) respectively, go up at driven axle (6) and install one side by side with driven gear and can horizontally slip and can drive the power-transfer clutch (10) of driven gear rotation along driven axle (6).
2, novel inner speed change bicycle according to claim 1 is characterized in that there is plush copper in two outsides, upper surface of the power-transfer clutch (10) in the described variable-speed drive, can match with the end tooth groove on the driven gear on the driven axle (6).
3, novel inner speed change bicycle according to claim 2 is characterized in that fixing on the described power-transfer clutch shift fork (16).
4, according to the described novel inner speed change bicycle of claim 1.2.3, it is characterized in that installing the driving gear (4) that rotates except that drive driven gear (8) on the axis, all the other driving gears can be processed into a gear cluster integral body.
5, novel inner speed change bicycle according to claim 4 is characterized in that the driven gear (8) on driven axle (6) is a gear that has ratchet (7), and a ratchet (3) is housed between axis (2) and gear cluster integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91232862 CN2120077U (en) | 1991-12-22 | 1991-12-22 | Bicycle with inner gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91232862 CN2120077U (en) | 1991-12-22 | 1991-12-22 | Bicycle with inner gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2120077U true CN2120077U (en) | 1992-10-28 |
Family
ID=4937817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91232862 Granted CN2120077U (en) | 1991-12-22 | 1991-12-22 | Bicycle with inner gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2120077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074040B (en) * | 2004-02-10 | 2011-11-23 | 本田技研工业株式会社 | Vehicle driving force transmission unit construction |
| US8371974B2 (en) | 2004-02-10 | 2013-02-12 | Honda Motor Co., Ltd. | Chain tension structure |
-
1991
- 1991-12-22 CN CN 91232862 patent/CN2120077U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074040B (en) * | 2004-02-10 | 2011-11-23 | 本田技研工业株式会社 | Vehicle driving force transmission unit construction |
| US8371974B2 (en) | 2004-02-10 | 2013-02-12 | Honda Motor Co., Ltd. | Chain tension structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |