CN2302950Y - Improved bicycle's seat tube - Google Patents
Improved bicycle's seat tube Download PDFInfo
- Publication number
- CN2302950Y CN2302950Y CN 97240689 CN97240689U CN2302950Y CN 2302950 Y CN2302950 Y CN 2302950Y CN 97240689 CN97240689 CN 97240689 CN 97240689 U CN97240689 U CN 97240689U CN 2302950 Y CN2302950 Y CN 2302950Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- tube
- breach
- improved bicycle
- utility
- 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
Links
- 239000000463 material Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 230000003872 anastomosis Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to an improved bicycle middle tube, wherein, more than two notches are arranged equally at the upper end of the middle tube; when the middle tube is welded with the upper tube and the lower tube into integration, the middle tube can not deform because of welding. When the welded middle tube is combined with the seat tube, the anastomosis between the tube wall and the circular surface can be kept; the effect of fastening is good with material saving; the working procedure can be reduced.
Description
The utility model relates in a kind of bicycle manages.
The middle pipe upper end of general bicycle is provided with a breach to tighten the seat pipe, and its lower end is with pipe and last pipe are welded in one down.In pipe often because of welding deformation, the pipe inside pipe wall can not match with the contact surface of seat pipe outer wall in causing, the leakiness that combines of middle pipe and a pipe; The middle pipe of this moment needs fraising to recover circular, for reserving the stock left for machining of fraising, must use the thicker middle pipe of tube wall, and waste material and operation are many.
The purpose of this utility model is at the problems referred to above, proposes to manage in a kind of improved bicycle, has both guaranteed its in-use performance, but saving in material again reduces operation.
On being characterised in that and wherein managing, the utility model is evenly equipped with the breach more than two.
Uniform three breach in pipe upper end in of the present utility model, best results.
Pipe upper end during above-mentioned breach is evenly distributed on, when central pipe and top tube and down tube were welded in one, even middle pipe is out of shape, the pipe end that has breach still can insert the seat pipe smoothly, because the pipe end elastically deformable of opening can guarantee coincideing of circle and garden face after the clamping.In addition, the breach in the best mis-aligned of the breach of beam ring itself on the pipe, about breach staggers, and can obtain the average power of tightening.
Design of the present utility model can be removed the operation that the welding rear middle tube needs the fraising fourth contact from, tube wall thickening in also needn't making; As seen, the design's use, the production process that had both reduced has been saved material cost again.In addition, non-circular telescopic pipe fit also can easier cooperation, and Shu Degeng is tight.
Now in conjunction with the accompanying drawings the utility model is further described:
Accompanying drawing 1 is a tubular construction scheme drawing in the ordinary bicycle;
Accompanying drawing 2 is the utility model structural representations;
Accompanying drawing 3 is the another kind of structural representations of the utility model;
Accompanying drawing 4 is beam ring constitutions diagram when combining with the utility model.
As shown in Figure 1, the upper end of middle pipe 1 is single breach 11, its lower end respectively with following pipe 2, on manage 3 and be welded in one.
As shown in Figure 2, the upper end of middle pipe 1 is evenly equipped with two breach 12,13, lower end and following pipe 2, on manage 3 integrally welded.
As shown in Figure 3, uniform three breach in the upper end of middle pipe 1, its implementation result is preferable.
As shown in Figure 4, the breach 41 of beam ring 4 staggers with the breach of middle pipe 1.
The design can be provided with the upper end of middle pipe 1 a plurality of well-distributed breach.
Claims (3)
1, manage in a kind of improved bicycle, the pipe upper end is evenly equipped with two above well-distributed breach in it is characterized in that.
2, manage in the improved bicycle according to claim 1, the pipe upper end is evenly equipped with three breach in it is characterized in that.
3, manage in the improved bicycle according to claim 1, it is characterized in that the breach of beam ring itself and the breach of middle pipe stagger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97240689 CN2302950Y (en) | 1997-09-12 | 1997-09-12 | Improved bicycle's seat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97240689 CN2302950Y (en) | 1997-09-12 | 1997-09-12 | Improved bicycle's seat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302950Y true CN2302950Y (en) | 1999-01-06 |
Family
ID=33950371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97240689 Expired - Fee Related CN2302950Y (en) | 1997-09-12 | 1997-09-12 | Improved bicycle's seat tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302950Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556248A (en) * | 2010-12-17 | 2012-07-11 | 天心工业股份有限公司 | Bicycle seat bar |
| CN103407539A (en) * | 2013-08-13 | 2013-11-27 | 中路股份有限公司 | Metal joint structure of bicycle |
-
1997
- 1997-09-12 CN CN 97240689 patent/CN2302950Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556248A (en) * | 2010-12-17 | 2012-07-11 | 天心工业股份有限公司 | Bicycle seat bar |
| CN103407539A (en) * | 2013-08-13 | 2013-11-27 | 中路股份有限公司 | Metal joint structure of bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HAN DEWEI Free format text: FORMER NAME OR ADDRESS: GUANGZHOU MEIDAHANG MACHINERY CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: 510080, No. two, No. 6 West Temple Street, Dongshan District, Guangzhou Patentee after: Han Dewei Address before: 510425 Baiyun coal mine, Shijing Town, Baiyun District, Guangzhou Patentee before: Meidahang Mechanism Co., Ltd., Guangzhou |
|
| 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 |