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Folding bicycle frame

A bicycle and foldable technology, applied in the direction of foldable bicycles, bicycles, motor vehicles, etc., can solve the problems of unfavorable storage and transportation, and the volume cannot be changed, and achieve the effect of being beneficial to storage and transportation and reducing the volume.

Inactive Publication Date: 2018-05-25
TIANJIN LIANHE IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The form of the vehicle frame in the prior art is fixed, and the volume cannot be changed, which is not conducive to storage and transportation

Method used

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  • Folding bicycle frame

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention provides a foldable bicycle frame, comprising a frame body 1 with a rear fork 2 and a V-shaped front tube 4 on the frame body 1, and rings on the upper and lower parts of the stand tube 3 sleeve 5, the ring sleeve 5 can rotate on the standpipe 3, and the two ends of the V-shaped front pipe 4 are respectively fixed on the ring sleeve 5.

[0012] The V-shaped front tube 4 can be turned backwards into the rear fork 2 .

[0013] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

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PUM

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Abstract

The invention provides a folding bicycle frame which comprises a bicycle frame body. The bicycle frame body is provided with a rear fork and a V-shaped front pipe. Annular sleeves are arranged on theupper portion and the lower portion of a vertical pipe and can rotate on the vertical pipe. The two ends of the V-shaped front pipe are fixed to the annular sleeves. The folding bicycle frame has thebeneficial effects that the bicycle frame can be folded, the size of the bicycle frame is greatly reduced, and storage and transportation are facilitated.

Description

technical field [0001] The invention relates to a folding bicycle frame. Background technique [0002] As the skeleton of the entire bicycle, the frame determines and affects the correctness and comfort of the riding posture to the greatest extent. The frame material has evolved from the earliest chrome-molybdenum steel, to aluminum alloy, and then to the use of composite materials such as carbon fiber, and others include scandium alloy, magnesium alloy, titanium [0003] Alloys, etc., the industry continues to develop new material formulations, improve pipe fittings and structural design capabilities, and innovate processing technologies, just to make the frame lighter, stronger, more comfortable and more streamlined. Density is one of the key factors determining the weight of the frame. The lower the density, the lighter the frame can be. The density of chrome-molybdenum steel is 7.9, that of aluminum alloy is 2.6-2.9, that of titanium is 4.5, that of titanium alloy is 4....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K15/00
CPCB62K15/006
Inventor 刘中元
Owner TIANJIN LIANHE IND & TRADE