Folding bicycle

A technology for folding bicycles and frames, applied to foldable bicycles, bicycles, motor vehicles, etc., can solve the problems of pivot 13 damage, doubts about use safety, limited load capacity, etc., achieve labor-saving operation and improve structural safety sexual effect

Active Publication Date: 2005-03-02
GIANT BICYCLES
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Since the pivot 13 runs through the front and rear frames 11, 12 in the vertical direction, the load during riding will fall on the pivot joints of the front and rear frames 11, 12, which is a hinged joint. On the pivot 13, not only the load capacity is limited, but also the hinged pivot 13 is easily damaged by the shear of torsional force, and there are doubts about the safety in use.

Method used

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Embodiment Construction

[0021] The aforementioned and other technical content, features and effects of the present invention will be clearly understood in the following detailed description of the second preferred embodiment with reference to the drawings.

[0022] Referring to FIG. 2 , FIG. 3 , and FIG. 4 , a first preferred embodiment of the folding bicycle of the present invention includes: a frame unit 2 and a buckle 3 .

[0023] The vehicle frame unit 2 has a front frame bar 21 and a rear frame bar 22 which are connected to each other. The rear wheel 24 , a pivot block 25 , a generally U-shaped slot 26 , and a pivot 27 .

[0024] The front and rear frame rods 21 , 22 extend along an axis X, and have oblique end surfaces 213 , 223 formed on a rear end 212 and a front end 222 respectively and fitted with each other.

[0025] The pivot block 25 extends from the oblique end surface 213 of the front frame bar 21 toward the rear frame bar 22 . The slot 26 is formed on the oblique end surface 223 of ...

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Abstract

The folding bicycle includes main one frame unit and one buckle. The frame unit has one front frame rod and one back frame rod connected together, one front wheel and one back wheel installed separately onto the front frame rod and the back frame rod, and one pivot through the back end of the front frame rod and the front end of the back frame rod, with the pivot and the rotating centers of the front wheel and the back wheel constituting one isosceles triangle. The buckle may position the front and the back frame rod to make them butt connected to form riding state or turn around the pivot to close to the front and the back wheel into parallel folding state.

Description

technical field [0001] The patent of the present invention relates to a bicycle, in particular to a folding bicycle that can be quickly folded in a roundabout manner. Background technique [0002] Ordinary foldable bicycles are widely favored by consumers because they can reduce the overall volume and facilitate transportation and parking. However, one of the bicycles folded in a roundabout way will cause the front and rear wheels to interfere with each other after folding because the frame extends in a linear direction. Therefore, the front wheels must be removed from the frame and placed separately. It's slow and can be a hassle to use. [0003] Referring to Fig. 2, the foldable bicycle 1 mainly includes: a front frame 11 and a rear frame 12 that can be butted and extended, and a pivot 13 that passes through the front and rear frames 11, 12 in the vertical direction. Thereby, the front and rear frames 11, 12 and the pivot 13 can form a hinge-like structure, and when fold...

Claims

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Application Information

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IPC IPC(8): B62K15/00
Inventor 陈民昌
Owner GIANT BICYCLES
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