CN2263624Y - Three-axle double-chain transmission of double bicycle - Google Patents
Three-axle double-chain transmission of double bicycle Download PDFInfo
- Publication number
- CN2263624Y CN2263624Y CN 95232260 CN95232260U CN2263624Y CN 2263624 Y CN2263624 Y CN 2263624Y CN 95232260 CN95232260 CN 95232260 CN 95232260 U CN95232260 U CN 95232260U CN 2263624 Y CN2263624 Y CN 2263624Y
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- China
- Prior art keywords
- double
- wheel
- utility
- model
- chain
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a three-axle double-chain transmission of a double bicycle, comprising a front shaft, a middle shaft, a back shaft, a chain wheel, a middle chain wheel and a small flywheel on the back shaft. The utility model is characterized in that the middle chain wheel of the utility model is provided with double wheel discs and is provided with two chains; a front chain is arranged on the front chain wheel and one wheel disc of the middle chain wheel; a back chain is arranged on the back flywheel and the other wheel disc of the middle chain wheel. The utility model has the advantages that the utility model is difficult to fall off, a tensioner can not need, people can take a rest when riding in a long distance, the utility model has labour saving, the difficulty of manufacture and installation can be reduced.
Description
The utility model belongs to the driving device of bicycle, and it is the improvement design to traditional double person bicycle driving device.
The raising of China's living standards of the people makes leisure, recreation become indispensable part in people's life gradually, the excellent tools of exercise health when tandem bicycle is family's outing holiday, spare time.But the driving device of traditional tandem bicycle is made up of three, strand bar, and its chain comes off easily at centre portion, and the effort of riding requires relatively strictness to bicycle processing and stack-mounted, can not adapt to the needs of penetration and promotion.
The purpose of this utility model provides three double-stranded bar drivings device of a kind of tandem bicycle, satisfies the requirement that people are laborsaving to riding, easy to assembly, do not fall chain.
The purpose of this utility model is achieved in that it comprises small flywheel on front axle, axis, rear axle and preceding sprocket wheel, middle sprocket and the rear axle, it is characterized in that: its middle sprocket has double-wheel-disc, and two chains are arranged, on the wheel disc of sprocket wheel and middle sprocket, rear chain was contained on another wheel disc of rear flywheel and middle sprocket before preceding chain was contained in.
Transmission system also is housed on rear flywheel.
Preceding sprocket wheel also can be a double-wheel-disc.
The utility model has the advantages that: owing to establish two chains, each root chain contraction in length, thus difficult drop-off, and need not add tightening device; Because two chains, front axle and axis can alternately be imput shaft, and long-distance riding can obtain rest, and two people also can exert oneself simultaneously, drive rear axle jointly, and be comparatively laborsaving; Owing to constituted two chain wheel set, needn't be strict with three axle center in-lines during installation, greatly reduce and make and mounting hardness.
Details of the present utility model is provided by following examples and accompanying drawing thereof;
Fig. 1 is a general illustration of the present utility model.
Fig. 2-the 3rd, diagram of gears of the present utility model.
According to Fig. 1-3, the utility model comprises front axle 1, is contained in the preceding sprocket wheel 2 on the front axle 1, it has a double-wheel-disc, a wheel disc with the middle sprocket 5 on the preceding chain 3 contact axis 4, another wheel disc on the middle sprocket 5 is equipped with conventional transmission system 9 with the rear flywheel 8 on the rear chain 6 contact rear axles 7 at flywheel 8 places.
The utility model is gone slick through test, and flexibly, steadily, laborsaving fast, double harmony is good, is the novel tandem bicycle that has than bright prospects.
Claims (3)
1, three double-stranded bar drivings device of tandem bicycle, it comprises the small flywheel on front axle, axis, rear axle and preceding sprocket wheel, middle sprocket and the rear axle, it is characterized in that: its middle sprocket has double-wheel-disc, and two chains are arranged, on the wheel disc of sprocket wheel and middle sprocket, rear chain was contained on another wheel disc of rear flywheel and middle sprocket before preceding chain was contained in.
2, three double-stranded bar drivings device of tandem bicycle according to claim 1 is characterized in that; Transmission system also is housed on rear flywheel.
3, three double-stranded bar drivings device of tandem bicycle according to claim 1, it is characterized in that: preceding sprocket wheel also can be a double-wheel-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232260 CN2263624Y (en) | 1995-09-19 | 1995-09-19 | Three-axle double-chain transmission of double bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232260 CN2263624Y (en) | 1995-09-19 | 1995-09-19 | Three-axle double-chain transmission of double bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2263624Y true CN2263624Y (en) | 1997-10-01 |
Family
ID=33876672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232260 Expired - Fee Related CN2263624Y (en) | 1995-09-19 | 1995-09-19 | Three-axle double-chain transmission of double bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2263624Y (en) |
-
1995
- 1995-09-19 CN CN 95232260 patent/CN2263624Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |