JPH0631063B2 - Bicycle frame pipe - Google Patents
Bicycle frame pipeInfo
- Publication number
- JPH0631063B2 JPH0631063B2 JP18597986A JP18597986A JPH0631063B2 JP H0631063 B2 JPH0631063 B2 JP H0631063B2 JP 18597986 A JP18597986 A JP 18597986A JP 18597986 A JP18597986 A JP 18597986A JP H0631063 B2 JPH0631063 B2 JP H0631063B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- bicycle frame
- frame pipe
- strength
- resin
- 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
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Motorcycle And Bicycle Frame (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は自転車用フレームのパイプに関する。Description: TECHNICAL FIELD The present invention relates to a pipe for a bicycle frame.
従来の技術 フレームにかかる応力をみると継手部分に大きく、中間
部に小さいから、鋼製パイプでは継手部分の端部の肉厚
を厚く、中間部を薄く設け、必要な強度を十分に維持し
ながら最大限、フレームの軽量化を図つている。Conventional technology Looking at the stress applied to the frame, it is large in the joint part and small in the middle part.Therefore, in the case of steel pipes, the wall thickness of the end part of the joint part is thick and the middle part is thin to maintain the necessary strength. However, we are trying to reduce the weight of the frame as much as possible.
発明が解決しようとする問題点 カーボン繊維を母体とする樹脂パイプなど樹脂パイプで
は、その素材の性質から前記鋼管フレームのようにパイ
プの端部と中間部の内径を異径にすることができなく、
したがつて同一肉厚では軽量化の限度に達していた。ま
た特に強い応力を受ける。スタートダツシユ、急制動、
急加速などの時の剛性改善が必要であつた。Problems to be Solved by the Invention In a resin pipe such as a resin pipe having a carbon fiber as a base material, it is impossible to make the inner diameters of the end portion and the middle portion of the pipe different from each other like the steel pipe frame due to the property of the material. ,
Therefore, the same wall thickness reached the limit of weight reduction. It is also subject to particularly strong stress. Start dash, sudden braking,
It was necessary to improve the rigidity during sudden acceleration.
問題点を解決するための手段 以下、この発明を実施の一例として示す図面により説明
すると、１はカーボン繊維を母体として設けられる樹脂
パイプであつて最新の原料と最新の工程で製作されを。Means for Solving the Problems Hereinafter, the present invention will be described with reference to the drawings showing an example of the embodiment. 1 is a resin pipe provided with a carbon fiber as a matrix, which is manufactured with the latest raw material and the latest process.
２はアモルフアス合金製線材で、その径は５ミクロンで
あつて、前記パイプ１の応力が強くかかる両端の継手部
1a、1bを密に、中央部を粗に巻装される。その巻装の仕
方についてはすくなくとも２本以上用い左巻と右巻の方
向を変えてクロスさせ、網目状になしている。Reference numeral 2 is a wire made of amorphous alloy, the diameter of which is 5 microns, and the joint portion at both ends to which the stress of the pipe 1 is strongly applied.
1a and 1b are tightly wound and the central part is roughly wound. As for the method of winding, at least two or more windings are used, and the directions of the left and right windings are changed and crossed to form a mesh.
３は表面塗装樹脂であつて、前記巻装されたアモルフア
ス合金製線材をパイプの表層に埋設する。3 is a surface coating resin, and the wound amorphous wire made of amorphous alloy is embedded in the surface layer of the pipe.
発明の効果 この発明は前述のような構成によりなるから、樹脂パイ
プにおいて、その大きな強度を必要とする端部を巻装さ
れる超高張力線材の密度に比例して、強度をあげること
ができ、したがつて、鋼管フレームにおけるバテツトパ
イプ同様の効果を得られるものである。また超高張力線
材の補強によつて、所望の高張力、剛性が得られるから
さらに軽量化を図り、スタートダツシユその他の強い応
力にも十分対応し、ハードな使用に耐える優れた自転車
用フレームを提供できるのである。EFFECTS OF THE INVENTION Since the present invention has the above-described configuration, the strength of the resin pipe can be increased in proportion to the density of the ultra-high tensile strength wire around which the end portion of the resin pipe that requires high strength is wound. Therefore, an effect similar to that of a butted pipe in a steel pipe frame can be obtained. Also, by reinforcing the ultra-high-strength wire, the desired high tension and rigidity can be obtained to further reduce the weight. Can be provided.
第１図はこの発明パイプの実施の一例を示す側面図、第
２図は一部拡大側面図、第３図は同じく断面図、第４図
はこの発明パイプを用いた自転車用フレームの側面図、
第５図は従来のバテツト鋼管の断面図である。 １……カーボン繊維を母体とする樹脂パイプ、２……ア
モルフアス合金製線材、３……表面塗装樹脂。FIG. 1 is a side view showing an embodiment of the invention pipe, FIG. 2 is a partially enlarged side view, FIG. 3 is a sectional view of the same, and FIG. 4 is a side view of a bicycle frame using the invention pipe. ,
FIG. 5 is a sectional view of a conventional butted steel pipe. 1 ... Resin pipe whose base is carbon fiber, 2 ... Amorphous alloy wire rod, 3 ... Surface coating resin.
Claims (1)
つて、大きな強度の必要な両端部を密に、強度のあまり
必要としない中間部を粗に、超高張力線材を巻装したこ
とを特徴とする自転車用フレームのパイプ。1. A resin pipe having carbon fiber as a base material, in which both ends, which require high strength, are densely packed, and an intermediate part, which does not require much strength, is coarsely wound. Characteristic bicycle frame pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18597986A JPH0631063B2 (en) | 1986-08-07 | 1986-08-07 | Bicycle frame pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18597986A JPH0631063B2 (en) | 1986-08-07 | 1986-08-07 | Bicycle frame pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6341290A JPS6341290A (en) | 1988-02-22 |
| JPH0631063B2 true JPH0631063B2 (en) | 1994-04-27 |
Family
ID=16180228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18597986A Expired - Fee Related JPH0631063B2 (en) | 1986-08-07 | 1986-08-07 | Bicycle frame pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631063B2 (en) |
-
1986
- 1986-08-07 JP JP18597986A patent/JPH0631063B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6341290A (en) | 1988-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |