CN2238778Y - Bicycle with large and small wheel - Google Patents
Bicycle with large and small wheel Download PDFInfo
- Publication number
- CN2238778Y CN2238778Y CN 95234733 CN95234733U CN2238778Y CN 2238778 Y CN2238778 Y CN 2238778Y CN 95234733 CN95234733 CN 95234733 CN 95234733 U CN95234733 U CN 95234733U CN 2238778 Y CN2238778 Y CN 2238778Y
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- wheel
- bicycle
- gear
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a bicycle with a large wheel and a small wheel, which is the improvement of the structures of bicycles. The utility model mainly comprises a bicycle handle, a bicycle brake, a bicycle frame, a front fork, a front wheel, a bicycle saddle, a drive mechanism, a rear wheel and pedals, wherein, the front wheel is smaller than the rear wheel, the bicycle frame is a trapezoidal frame, pedals are arranged on both sides of the rear wheel, and the drive mechanism adopts gear transmission. The utility model has the advantages that the length of the utility model is smaller than that of a common bicycle, the volume and the weight of the utility model are reduced, the transmission is more steady, the utility model is more labor-saving, and the speed of the utility model can be improved. The utility model is a novel bicycle which is suitable for the requirements of people, and the utility model can be popularized and used.
Description
The utility model relates to a kind of improvement of bicycle structure, is a kind of large and small wheel bicycle specifically.
Bicycle is that people use the very general vehicle of riding instead of walk, and existing very long history.The bicycle of people's use now, front and rear wheel is onesize, shelf also are equipped with in the back, seat, this structure makes car body longer, and is heavier, when needs are moved bicycle, feel heavy painstaking, very inconvenient, and during actual the use, in fact the big shelf of back, seat there is no much use.
The utility model purpose is to overcome the shortcoming in the above-mentioned technology, a kind of structural development is proposed big small-wheel bicycle, make length over ends of body to shorten, expendable weight and speed speed.
The utility model purpose is realized by following technical scheme: this large and small wheel bicycle, its structure mainly includes handlebar, brake, vehicle frame, front fork, front-wheel, vehicle seat, transmission device, trailing wheel and pedal, front-wheel is less than trailing wheel, vehicle frame is a ladder frame, pedal is contained in the trailing wheel both sides, and transmission device adopts gear transmission.
Front-wheel is littler than trailing wheel, and its diameter is 3/4～1/3 of a trailing wheel.Because front-wheel is less, can shorten the length of bicycle, its vehicle frame improves trapezium structure by usual triangle, the weight saving of car.Be covered with dust boot at gear drive, preventing that dust from dropping on increases friction force on the gear.Its gear drive has a flywheel, is fixed on the wheel hub, with the intermediate gear engagement in its place ahead, accepts the power drive wheel that intermediate gear transmits.Intermediate gear the place ahead and the driving gear engagement that is contained in the bicycle left side.Left and right two driving gears link together with left and right two pedals respectively, on single line, are positioned at the trailing wheel both sides, drive driving gear by pedal and rotate, and drive bicycle and advance.Left and right main gear respectively with the left and right sloth wheel gear engagement in its place ahead, left and right sloth wheel gear is fixed on the same axis, lay respectively at the bicycle rear both sides, play two driving gears of interlock and fix two pedal positions, intermediate gear is small one and large one two coaxial bidentate wheels, transmit the power of driving gear and give flywheel, and can be used to speed change.
The utility model has the advantages that its length is shorter than general bicycle, dwindled volume, alleviated weight, adopt gear multiplication more steady, more laborsaving, thereby can improve speed with chain gear, and can speed change, be more suitable for people's needs.
Embodiment of accompanying drawings:
Fig. 1 is big small-wheel bicycle structural representation.
Fig. 2 is the gear drive scheme drawing.
This big small-wheel bicycle mainly includes handlebar (1), brake (2), ladder type frame (3), front fork (4), front-wheel (5), vehicle seat (7), transmission device and dust boot (11) thereof, trailing wheel (13), pedal (12), in addition, mud retaining tile (6) before also having, little shelf (8), rear mud-blocking tile (9), taillight (10), front-wheel (5) are half of diameter of trailing wheel (13) less than the diameter of trailing wheel (13), front-wheel (5), and left and right pedal (12) is contained in trailing wheel (13) both sides.Gear drive includes a flywheel (15), is fixed on the wheel hub, meshes and accept the power drive wheel of its transmission with intermediate gear (16), (17) in its place ahead.Intermediate gear (16), (17) are coaxial bidentate wheel, and the power of driving gear (18), (21) of transmitting is given flywheel, and can utilize 2 intermediate gears to vary in size and carry out speed change.Driving gear (18), (21) link together with left and right pedal respectively, and mesh with sloth wheel gear (19), (20) in the place ahead.Except that gear (15), each gear all by bearing fixing the fork-shaped of vehicle frame bottom girder partly on.Speed is: gear (18), (21): gear [(17), (16)]: gear (15) is 16:[6,15]: 7.Gear adopts cylindrical involute tooth gear.
Claims (5)
1, a kind of big small-wheel bicycle, its structure mainly includes handlebar, brake, vehicle frame, front fork, front-wheel, vehicle seat, transmission device, trailing wheel and pedal, it is characterized in that front-wheel less than trailing wheel, and vehicle frame is a ladder frame, pedal is contained in the trailing wheel both sides, and transmission device adopts gear transmission.
2, according to the described large and small wheel bicycle of claim 1, the diameter that it is characterized in that steamboat is 3/4～1/3 of a big wheel diameter.
3,, it is characterized in that being covered with dust boot in the gear drive outside according to the described large and small wheel bicycle of claim 1.
4, according to the described large and small wheel bicycle of claim 1, it is characterized in that gear drive has a flywheel, be fixed on the wheel hub, intermediate gear engagement with its place ahead, intermediate gear the place ahead and the driving gear engagement that is contained in the bicycle left side, left and right two driving gears link together with left and right two pedals respectively, at same axis direction, be positioned at the trailing wheel both sides, left and right two driving gears all with the left and right sloth wheel gear engagement in its place ahead, left and right sloth wheel gear is fixed on the same axis.
5,, it is characterized in that intermediate gear is small one and large one two wheel bidentate wheels together according to the described large and small wheel bicycle of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234733 CN2238778Y (en) | 1995-09-21 | 1995-09-21 | Bicycle with large and small wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234733 CN2238778Y (en) | 1995-09-21 | 1995-09-21 | Bicycle with large and small wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238778Y true CN2238778Y (en) | 1996-10-30 |
Family
ID=33878592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95234733 Expired - Fee Related CN2238778Y (en) | 1995-09-21 | 1995-09-21 | Bicycle with large and small wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238778Y (en) |
-
1995
- 1995-09-21 CN CN 95234733 patent/CN2238778Y/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 |