CN203581265U - Bicycle frame with reduced length - Google Patents
Bicycle frame with reduced length Download PDFInfo
- Publication number
- CN203581265U CN203581265U CN201320686370.6U CN201320686370U CN203581265U CN 203581265 U CN203581265 U CN 203581265U CN 201320686370 U CN201320686370 U CN 201320686370U CN 203581265 U CN203581265 U CN 203581265U
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- CN
- China
- Prior art keywords
- upper beam
- circular
- underbeam
- pipeline section
- back vent
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- Expired - Fee Related
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Abstract
The utility model relates to a bicycle frame with the reduced length. The bicycle frame with the reduced length is composed of a front vertical pipe, a front upper beam, a front lower beam, a rear vertical pipe, a rear fork upper beam, a rear fork lower beam and a rear fork hook, wherein a middle axle sleeve is fixedly installed at the lower end of the rear vertical pipe; the front upper beam and the front lower beam are installed between the front vertical pipe and the rear vertical pipe and located on the same plane; the rear fork upper beam and the rear fork lower beam are fixedly installed on the other side of the rear vertical pipe; the outer end of the rear fork upper beam and the outer end of the rear fork lower beam are combined and fixedly provided with the rear fork hook; a circular-arc-shaped pipe section protruding outwards is arranged at the lower portion of the rear vertical pipe; a circular-arc-shaped pipe section protruding upwards is arranged at the lower portion of the front lower beam. According to the bicycle frame, the structure protruding outwards is arranged at the position, corresponding to a rear wheel, of the rear vertical pipe, the structure protruding upwards is arranged at the position, corresponding to a front wheel, of the front lower beam, and therefore the rear wheel can move forwards, the length of the whole bicycle frame can be reduced, and weight of a bicycle is lowered.
Description
Technical field
The utility model belongs to bicycle field, relates to the vehicle frame of bicycle, the cycle frame that especially a kind of length is dwindled.
Background technology
Because the length of bicycle is longer, cause weight heavier.Tracing it to its cause, is exactly because the entire length problem of bicycle.Therefore, how the entire length of contracting bicycle, is the major issue of expendable weight.
Because bicycle is longer, cause bicycle cannot put into car or enter other operational vehicles, although can adopt folding bicycle, the intensity of folding bicycle is limited, cannot substitute bicycle.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the cycle frame that provides a kind of length to dwindle, and this vehicle frame can effectively dwindle the length of bicycle, has correspondingly reduced the weight of bicycle.
The utility model solves its technical matters and is achieved through the following technical solutions:
The cycle frame that a kind of length is dwindled, by front standpipe, front upper beam, front underbeam, rear profile tube, back vent upper beam, back vent underbeam and rear fork hook, formed, lower end at rear profile tube is fixedly mounted with bottom bracket axle, between front standpipe and rear profile tube isoplanar be fixedly mounted with before upper beam and front underbeam, at rear profile tube opposite side, be fixedly mounted with back vent upper beam and back vent underbeam, back vent upper beam and the outer end of back vent underbeam converge and be jointly fixedly mounted with rear fork hook, it is characterized in that:
The circular-arc pipeline section of evagination is made in the bottom of described rear profile tube, and the evagination position of this circular-arc pipeline section is towards front standpipe direction;
The circular-arc pipeline section of epirelief is made in the bottom of described front underbeam, and the epirelief position of this circular-arc pipeline section is towards front upper beam direction.
And the height of this circular-arc pipeline section of described rear profile tube is half of whole rear profile tube height, the arc angle of this circular-arc pipeline section is 50-70 degree.
And the arc angle of the made circular-arc pipeline section of described front underbeam is 90-120 degree.
And described front upper beam and back vent upper beam are all made radian pipe.
Advantage of the present utility model and beneficial effect are:
1, this vehicle frame is made outwardly structure at the corresponding wheel position of rear profile tube, thus can be by rear wheel displacement forward, thus the length of dwindling whole cycle frame alleviates the own wt of bicycle.
2, this vehicle frame is made outwardly structure in the corresponding front vehicle wheel of front underbeam position, thus can be by front vehicle wheel displacement backward, thus the length of dwindling whole cycle frame alleviates the own wt of bicycle.
3, this vehicle frame adopts this front underbeam with radian and front upper beam, can also increase the integral vibration damping performance of vehicle frame, improves the buffer capacity of vehicle frame.
4, this vehicle frame, after wheel compactness is mobile, can greatly reduce the steel pipe length of vehicle frame, reduces costs.
Accompanying drawing explanation
Fig. 1 is the structural front view of the utility model vehicle frame.
The specific embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
The cycle frame that a kind of length is dwindled, by front standpipe 1, front upper beam 3, front underbeam 4, rear profile tube 5, back vent upper beam 8, back vent underbeam 9 and rear fork hook 10, formed, in the lower end of rear profile tube, be fixedly mounted with bottom bracket axle 7, between front standpipe and rear profile tube isoplanar be fixedly mounted with before upper beam and front underbeam, at rear profile tube opposite side, be fixedly mounted with back vent upper beam and back vent underbeam, back vent upper beam and the outer end of back vent underbeam converge and be jointly fixedly mounted with rear fork hook.
Innovative point of the present utility model is:
1, the circular-arc pipeline section 6 of evagination is made in the bottom of described rear profile tube, and the evagination position of this circular-arc pipeline section is towards front standpipe direction.
The height of this circular-arc pipeline section is half of whole rear profile tube height, and the arc angle of this circular-arc pipeline section is 50-70 degree.
2, the circular-arc pipeline section 2 of epirelief is made in the bottom of described front underbeam, and the epirelief position of this circular-arc pipeline section is towards front upper beam direction.
The arc angle of this circular-arc pipeline section is 90-120 degree.
In the present embodiment, described front upper beam and back vent upper beam are all made radian pipe, to dwindle the length of vehicle frame.
Claims (4)
1. the cycle frame that length is dwindled, by front standpipe, front upper beam, front underbeam, rear profile tube, back vent upper beam, back vent underbeam and rear fork hook, formed, lower end at rear profile tube is fixedly mounted with bottom bracket axle, between front standpipe and rear profile tube isoplanar be fixedly mounted with before upper beam and front underbeam, at rear profile tube opposite side, be fixedly mounted with back vent upper beam and back vent underbeam, back vent upper beam and the outer end of back vent underbeam converge and be jointly fixedly mounted with rear fork hook, it is characterized in that:
The circular-arc pipeline section of evagination is made in the bottom of described rear profile tube, and the evagination position of this circular-arc pipeline section is towards front standpipe direction;
The circular-arc pipeline section of epirelief is made in the bottom of described front underbeam, and the epirelief position of this circular-arc pipeline section is towards front upper beam direction.
2. the cycle frame that length according to claim 1 is dwindled, is characterized in that: the height of this circular-arc pipeline section of described rear profile tube is half of whole rear profile tube height, and the arc angle of this circular-arc pipeline section is 50-70 degree.
3. the cycle frame that length according to claim 1 is dwindled, is characterized in that: the arc angle of the made circular-arc pipeline section of described front underbeam is 90-120 degree.
4. the cycle frame that length according to claim 1 is dwindled, is characterized in that: described front upper beam and back vent upper beam are all made radian pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686370.6U CN203581265U (en) | 2013-10-31 | 2013-10-31 | Bicycle frame with reduced length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686370.6U CN203581265U (en) | 2013-10-31 | 2013-10-31 | Bicycle frame with reduced length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203581265U true CN203581265U (en) | 2014-05-07 |
Family
ID=50579224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320686370.6U Expired - Fee Related CN203581265U (en) | 2013-10-31 | 2013-10-31 | Bicycle frame with reduced length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203581265U (en) |
-
2013
- 2013-10-31 CN CN201320686370.6U patent/CN203581265U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |