CN2338263Y - High speed bicycle - Google Patents
High speed bicycle Download PDFInfo
- Publication number
- CN2338263Y CN2338263Y CN 98227174 CN98227174U CN2338263Y CN 2338263 Y CN2338263 Y CN 2338263Y CN 98227174 CN98227174 CN 98227174 CN 98227174 U CN98227174 U CN 98227174U CN 2338263 Y CN2338263 Y CN 2338263Y
- Authority
- CN
- China
- Prior art keywords
- gear
- sleeve
- sprocket wheel
- barrel roollr
- wheel
- 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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- Gears, Cams (AREA)
Abstract
The utility model discloses a high speed bicycle composed of a frame, handlebars, a front wheel, a back wheel, etc. The utility model is characterized in that the lower part of the frame is provided with a sealed gear box; a transmission mechanism in the gear box is composed of a sleeve-barrel roller gear and a sprocket which are engaged. The utility model has the advantages of high radio speed, low noise, easy use and long service life.
Description
The utility model relates to a kind of high-speed bicycle, specifically a kind of improvement of transmission mechanism of bicycle.
The transmission device of standard bicycle is sprocket wheel, chain structure, is a kind of non-conjugated engagement, and its major defect is that speed ratio is lower, dust, rainwater easily enter in the chain guard, make chain, sprocket wheel corrosion, and long-term use, inconvenience is used in chain landing easy to wear, and the life-span is shorter.
The purpose of this utility model provides a kind of simple in structure, and is higher than speed, noise is little, the high-speed bicycle of long service life.
Structure of the present utility model comprises handlebar 12a, front fork 12b, vehicle frame 13, saddle 14, preceding sprocket wheel 2, back sprocket wheel 8, front-wheel 12C and the trailing wheel 9 of standard bicycle, its principal character is, vehicle frame 13 bottoms are provided with gear case 10, preceding sprocket wheel 2 and back sprocket wheel 8 place in the gear case 10, are provided with a sleeve-barrel roollr gear 3 that is engaged with between this two sprocket wheel at least.
The further technical characterictic of the utility model is also can be provided with former and later two dual gears between said sleeve-barrel roollr gear 3 and the back sprocket wheel 8, i.e. preceding dual gear of forming by inner sprocket 4 and sleeve-barrel roollr gear 5 and the back dual gear of forming by inner sprocket 6 and sleeve-barrel roollr gear 7, inner sprocket 4, inner sprocket 6 are meshed with sleeve-barrel roollr gear 3, sleeve-barrel roollr gear 5 respectively, and sleeve-barrel roollr roller-dear 7 is meshed with back sprocket wheel 8.
13 on front fork 12b of the present utility model and support also can be set up a spring multiple twin chain 11, and handlebar of the present utility model and front-wheel can be folded to the inboard upset of vehicle frame, to shorten length, are convenient to placement, carrying.
Form because transmission device of the present utility model is mated by sleeve-barrel roollr gear and sprocket wheel, the garden arc of garden, joint garden on week of two transmissions must overlap, for surely than transmission.If on a tooth ingear tooth curve, appoint and get series of points, make the garden heart respectively, with the sleeve-barrel roollr radius as radius, plot garden family, be the profile of tooth flank profil of roller-dear, become the conjugation pressure line on the joint garden, the conjugation transmission in two joint gardens, be the garden arc, so transmission is slim and graceful, noise is minimum, easily improve, gather way than speed.Because transmission gear of the present utility model all is arranged in the gear case, can effectively prevent the erosion of aqueous vapor and dust again, improve service life.
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is analysed and observe enlarged diagram for the A-A of Fig. 1.
Among the figure: the 1-crank, sprocket wheel before the 2-, 3-sleeve-barrel roollr gear, the 4-inner sprocket, 5-sleeve-barrel roollr gear, the 6-inner sprocket, 7-sleeve-barrel roollr gear, sprocket wheel behind the 8-, the 9-trailing wheel, the 10-gear case, 11-spring double-strand chain, the 12a-handlebar, the 12b-front fork, the 12c-front-wheel, the 13-vehicle frame, the 14-saddle, 15-vehicle frame rear lining plate, the 16-clothes hanger, the 17-screw, the 18-axle, the 19-bearing, the 20-steel pipe, the 21-shaft retaining ring, the 22-bearing sleeve, the 23-rear axle, the 24-nut, 25, the 26-bearing, the 27-end cap, the 28-bearing carrier ring.
Further describe the utility model below in conjunction with drawings and Examples.
Vehicle frame 13 of the present utility model is positioned at vehicle frame 13 anterior and bonded assembly handlebar 12a, front fork 12b and front-wheel 12c successively up and down, is packed in the saddle 14 on the vehicle frame 13, and clothes hanger 16 and trailing wheel 9 all are that prior art is mutually identical with the conventional confguration base.Gear case 10 is packed in the bottom of vehicle frame 13, is the airtight casing of a metal or engineering plastics, and preceding sprocket wheel 2 is connected with crank 1 through bicycle middle shaft, and crank 1 is provided with pedal.Back sprocket wheel 8 through bearing installation on rear axle 26.Sprocket wheel can be by the GB-1244-76 standard manufacture, the wheel body clamping plate of sleeve-barrel roollr gear can be used 16Mn, δ=1.5 steel moulds compacting is done, and sleeve-barrel roollr on the wheel body and pin shaft structure can be identical with the sleeve-barrel roollr bearing pin of ordinary bicycle chain, and with wheel body clamping plate riveted and fixed.Transmission program of the present utility model is: sprocket wheel 2 before crank 1 drives, preceding sprocket wheel 2 drive socket roller-dears 3, the preceding dual gear that 3 transmissions of sleeve-barrel roollr gear are combined into by inner sprocket 4 and sleeve-barrel roollr gear 5, this dual gear drives the back dual gear that is combined into by inner sprocket 6 and sleeve-barrel roollr gear 7, sprocket wheel 8 after sleeve-barrel roollr gear 7 transmissions of back dual gear, back sprocket wheel 8 drives trailing wheel 9, makes the utility model high-speed motion forward.
Claims (3)
1, a kind of high-speed bicycle, comprise handlebar 12a, front fork 12b, vehicle frame 13, saddle 14, preceding sprocket wheel 2, back sprocket wheel 8, front-wheel 12c and trailing wheel 9, it is characterized by that vehicle frame 13 bottoms are provided with gear case 10, preceding sprocket wheel 2 and back sprocket wheel 8 places in the gear case 10, be provided with a sleeve-barrel roollr gear 3 that is engaged with between this two sprocket wheel at least.
2, by the described a kind of high-speed bicycle of claim 1, it is characterized by between said sleeve-barrel roollr gear 3 and the back sprocket wheel 8 and also be provided with former and later two dual gears, preceding dual gear is made up of inner sprocket 4 and sleeve-barrel roollr gear 5, back dual gear is made up of inner sprocket 6 and sleeve-barrel roollr gear 7, inner sprocket 4, inner sprocket 6 respectively with sleeve-barrel roollr gear 3,5 engagements of sleeve-barrel roollr gear, sleeve-barrel roollr gear 7 and 8 engagements of back sprocket wheel.
3, by claim 1,2 described a kind of high-speed bicycles, it is characterized by 13 of front fork 12b and vehicle frames and be provided with spring multiple twin chain 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227174 CN2338263Y (en) | 1998-06-23 | 1998-06-23 | High speed bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227174 CN2338263Y (en) | 1998-06-23 | 1998-06-23 | High speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338263Y true CN2338263Y (en) | 1999-09-15 |
Family
ID=33977537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227174 Expired - Fee Related CN2338263Y (en) | 1998-06-23 | 1998-06-23 | High speed bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338263Y (en) |
-
1998
- 1998-06-23 CN CN 98227174 patent/CN2338263Y/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 |