Bicycle folding device having a two-pivot hinge structure

Abstract

The present invention relates to a bicycle folding device, and more specifically to a bicycle folding device having a two-pivot hinge structure. The bicycle folding device according to the present invention comprises: a first hinge supporting frame of which one end is integrally formed on or coupled to a front-end frame of the bicycle while the other end folds with respect to a second hinge supporting frame and which is joined in hinged fashion to a hinge rod by means of a first hinge pin towards one end; a second hinge supporting frame of which one end is inserted and secured in a rear frame of the bicycle while the other end folds with respect to the first hinge supporting frame and which is joined in hinged fashion to the hinge rod by means of a second hinge pin towards one end; and a hinge rod of which one end is joined in hinged fashion to the first hinge pin and the other end is joined in hinged fashion to the second hinge pin and which rotates around an axis of rotation constituted by either the first or the second hinge pin.

Description

technical field [0001] The present invention relates to a bicycle folding device, more particularly, to a bicycle folding device using a two link hinge structure. Background technique [0002] In recent years, a large number of foldable bicycles which facilitate the movement and storage of bicycles have been produced and used. [0003] A typical folding bicycle has such Figure 1a (expanded state) and Figure 1b (folded state) shows the folded structure. [0004] Its structure is specifically as follows: the folding structure includes a front frame 111 and a rear frame 121; the front frame 111 is connected with the front hinge plate 112, and the rear frame 121 is connected with the rear hinge plate 122; as a clamping structure, it includes a release handle 173, a lever Holder 171 and pin holder 172, and hinge pin 141 is installed at the upper end. [0005] from Figure 1a Shown state to Figure 1b The conversion process of the shown state is as follows: the release handl...

AI Technical Summary

Problems solved by technology

[0006] The folding action of such an existing bicycle is completed through multiple stages, so the unclamping action is very inconvenient, and because the folding structure of the bicycle is larger than the outer dimension of the bicycle frame, the folding structure is in a position protruding from the outer surface of the frame , so from the point of view of style, the poor shape of the frame is a problem; from the point of view of packaging, it has the disadvantage of not being miniaturized enough

And there is the following inconvenience: the same as the folding action, the release action after folding also needs to go through multiple stages.

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