Portable folding bicycle

A folding bicycle and portable technology, applied in the field of bicycles, can solve the problems of large size and inconvenience to carry, and achieve the effect of small size

Inactive Publication Date: 2010-05-05
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the first front riser and the rear extension of the car bod

Method used

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  • Portable folding bicycle
  • Portable folding bicycle
  • Portable folding bicycle

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Embodiment Construction

[0049] Below will further explain the structure of the patent of the present invention with embodiment in conjunction with accompanying drawing.

[0050] attached by figure 1 As shown, the portable folding bicycle of the present invention has a retractable front tube assembly 1, which includes a front tube assembly upper sleeve 3 with a first end and a second end of a foldable handlebar 2 and a first end nested inside The second end of the upper casing of the front tube assembly and the second end of itself support the lower casing 5 of the front wheel 4 of the front tube assembly, and the upper and lower casings are fastened and locked by a quick-release wrench tube bundle 94 installed at the open end of the lower casing; A retractable rear tube assembly 6, which includes a front standpipe 21 that is pivotably socketed at the first end and the first end of the lower casing 5 of the front tube assembly. The upper casing 7 of the connected rear pipe assembly and the second end...

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PUM

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Abstract

The invention relates to a portable folding bicycle. Frame connecting rods are reduced to the maximum by a telescopic pipe body nested on a frame and pivot folding, and thereby frame pipe fittings can be rapidly shortened by about half the size; the front wheel and the rear wheel are placed together in parallel after the frame is folded, thereby also reducing the size of the bicycle body to the greatest extent and saving materials and the manufacture cost. The transmission ratio is increased by a multiplying gear configured on the bicycle, thereby enabling minor-diameter wheels used by the bicycle to reach the running speed of big wheels; handle bars and foot pedals can be folded, the folding dimension of the bicycle is about 60*20*10 cm, and the weight is about 5kg, therefore, the bicycle can be carried in a hand bag or a packsack.

Description

technical field [0001] The invention relates to a bicycle, in particular to a portable folding bicycle, which can be folded into the size of a handbag and is convenient to be carried by hand. technical background [0002] At present, there are many types of folding bicycles on the market, but the folding forms are similar. Most of them adopt the pivoting folding method that the bicycle frame is connected to the front fork riser and the support riser. , so that the frame and front and rear wheels can be folded together. Most of the wheel diameters of this folding bicycle are about 20 inches. Since the body is folded, the volume does not decrease and the weight is not light, so it is still inconvenient to carry. [0003] Chinese invention patent application 200520075101.1 announced a folding bicycle, the frame is characterized by a second front standpipe whose lower end is rotatably connected to the upper end of the first front standpipe, and the front end is rotated with the...

Claims

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Application Information

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IPC IPC(8): B62K15/00B62K21/16B62M3/08
CPCB62K2015/003
Inventor 吴贵凉
Owner SOUTHWEST JIAOTONG UNIV
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