Composite frame pipe of bicycle

A technology for composite materials and bicycles, which is applied in the direction of bicycle frames, bicycle accessories, synthetic resin layered products, etc. It can solve the problems affecting the overall mechanical properties of the frame, low surface hardness of composite materials, and affecting appearance, so as to ensure the reliability of use and comfort, low density and simple structure

Inactive Publication Date: 2012-07-18
TAISHAN SPORTS IND GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The bicycle frame is a tubular structure. Although the carbon fiber composite material has many advantages, it also has a major disadvantage, that is, due to the low surface hardness of the composite material, it is not resistant to scratches. When it is hit by a hard object, it is easy to leave a deep hole The dents affect the overall mechanical properties of the frame, cause safety hazards, and also affect the appearance; therefore, it is necessary to design a new type of composite material frame tube structure, and improve the composite material frame tube structure on the basis of retaining the advantages of the original composite material. Surface hardness and scratch resistance

Method used

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  • Composite frame pipe of bicycle
  • Composite frame pipe of bicycle

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The composite material base pipe is made by pultrusion, winding, hot pressing and other forming processes, and a layer of metal layer is formed on the surface of the base pipe by melt spraying, electroplating, electroforming or other processes. An appropriate amount of raw materials required for foam foaming is filled into the base pipe and foamed to fill the cavity of the base pipe with foam, thereby obtaining a sandwich structure bicycle frame pipe.

Embodiment 2

[0025] Spray a layer of metal layer on the surface of the forming mold, lay fiber fabric on the metal layer and paint resin glue, or lay prepreg directly, after laying, the mold is closed and pressurized, and the mold is demoulded after the resin is cured. An appropriate amount of raw materials required for foam foaming is filled into the base pipe and foamed to fill the cavity of the base pipe with foam, thereby obtaining a sandwich structure bicycle frame pipe.

Embodiment 3

[0027] The composite material base pipe is made by pultrusion, winding, hot pressing and other forming processes, and a layer of metal layer is formed on the surface of the base pipe by melt spraying, electroplating, electroforming or other processes. Select a suitable foam material and process it into a rod shape with a diameter slightly smaller than the inner diameter of the base pipe. Apply adhesive on the surface of the foam material, insert it into the base pipe, and make it bond with the base pipe.

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Abstract

The invention belongs to the field of bicycles and particularly discloses a composite frame pipe of a bicycle. The composite frame pipe comprises an outer metal layer and is characterized in that a composite hollow base pipe is sleeved in the metal layer; and a low-density foam sandwich material is arranged in the hollow base pipe. The composite frame pipe disclosed by the invention is simple in structure, reasonable in design and convenient to use; by adoption of the composite frame pipe, a light and reliable bicycle frame can be obtained and the riding safety and comfort can be improved. The composite frame pipe is suitable for wide popularization and application.

Description

(1) Technical field [0001] The invention belongs to the field of bicycles, in particular to a composite material frame pipe of a bicycle. (2) Background technology [0002] Bicycles are mainly means of transportation powered by human pedaling. Compared with motorcycles, automobiles and other means of transportation, although bicycles are relatively slow, they are safe and have the effect of exercising, so they are widely welcomed. . The bicycle combines the relevant principles of ergonomics and aerodynamics, and has many parts, such as frame, fork frame, handle, wheel rim, chain and so on. In order to reduce the weight of bicycles and save the rider's physical strength, bicycles have been gradually developed from metal materials to fiber composites, especially carbon fiber composites. Compared with metal materials, carbon fiber composite materials have a density of only 1.6g / m 3 , is only 1 / 5 of steel, so it can greatly reduce the weight of the bicycle. In addition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K19/06B62K19/16B32B15/08B32B27/04
Inventor 杨小兵龙国荣卞志勇王春青
Owner TAISHAN SPORTS IND GRP
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