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Folding bicycle

A folding bicycle and frame technology, applied in the field of bicycle, pedal drive or electric drive structure, can solve the problems of inconvenient carrying and increased body weight, etc., achieve the effect of easy carrying and storage, and ensure the strength of force

Inactive Publication Date: 2011-11-23
崔晓宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the folding of the frame, most folding bicycles cancel the triangular structure and change the frame to a beam structure, and increase the cross-sectional size of the beam to ensure its stress strength, resulting in an increase in the weight of the body; on the other hand, The folded bicycle needs to be carried by hand, and it is not very convenient to carry

Method used

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  • Folding bicycle
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one: see attached image 3 and Figure 4 As shown, a foldable bicycle includes a vehicle frame 8, a front fork standpipe 3, a rear fork 16, a front wheel 1, a rear wheel 2, a handle 4, a seat cushion 5 and a driving mechanism, and has two working positions of a folded state and an unfolded state. state, the frame 8 is a barb-type single-bar structure with a smooth transition, and the upper part is an arc-shaped part. It forms a rotational connection with the front fork riser 3, and the part between the vehicle frame 8 and the front fork riser 3 between the upper shaft 13 of the front fork riser and the lower shaft 12 of the front fork riser together constitutes a ring-shaped upper body stress frame; The rear end of the handle 4 is connected to the upper part of the front fork standpipe 3 through a limit rotation mechanism; a bearing is installed in the nozzle on the upper end of the front fork standpipe for connecting with the upper end of the vehicle frame;...

Embodiment 2

[0030] Embodiment 2: A folding bicycle, including a frame, a front fork riser, a rear fork, a front wheel, a rear wheel and a handle, has two working states of a folded state and an unfolded state, and the frame is a barb with a smooth transition Single-rod structure, the upper part is an arc-shaped part, the upper end and the lower end of the frame form a rotational connection with the front fork stem through the upper shaft of the front fork stem and the lower shaft of the front fork stem respectively, and the frame and the front fork stem The part between the upper rotating shaft of the front fork vertical pipe and the lower rotating shaft of the front fork vertical pipe together constitutes the upper part of the car body stress frame; the rear end of the handle is connected with the upper part of the front fork vertical pipe through a folding rotating mechanism; The front end is rotatably connected with the vehicle frame, and a limiting structure is arranged between the rea...

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PUM

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Abstract

The invention discloses a folding bicycle. The folding bicycle comprises a frame, a front fork riser, a back fork, a front wheel, a rear wheel and a handle; the folding bicycle is characterized in that: the frame is an inverted hook single rod structure in smooth transition; the upper part of the frame is an arc-shaped part; the upper end part and the lower end part of the frame are respectively in rotation connection with the front fork riser by a front fork riser upper rotation shaft and a front fork riser lower rotation shaft; the frame and the part of the front fork riser between the front fork riser upper rotation shaft and the front fork riser lower rotation shaft together form a vehicle body stress frame with an annular upper part; the back end of the handle is connected to the upper part of the front fork riser by a limit rotation mechanism; the front end of the back fork is in rotation connection with the frame; and a limit structure is arranged between the back fork and the frame, so that the back fork is limited when the folding bicycle is in an expanding state. When the folding bicycle disclosed by the invention is in a folding state, the wheels are arranged in parallel left and right; a user can push or drag the folding bicycle easily by grabbing the arc-shaped part of the frame, and can carry the folding bicycle by hanging the bicycle on shoulders.

Description

technical field [0001] The invention relates to a wheeled vehicle, in particular to a foldable bicycle which can be provided with a pedal-driven or electric-driven structure. Background technique [0002] Bicycles are a convenient means of transportation. A common bicycle is a two-wheel structure, including a triangular frame, a front fork riser, a rear fork, a front wheel, a rear wheel, a handle, a seat cushion and a driving mechanism; Installed above the front tube and connected with the front wheels to form a steering mechanism; the seat cushion is generally arranged at the rear end of the frame; the driving mechanism can be a pedal-driven structure, such as a chain-type pedal-driven structure; it can also be an electric drive structure , the electric motor is powered by the battery to drive the wheels to rotate. [0003] In order to further facilitate the carrying and storage of bicycles, for example, bicycles are stored indoors, or bicycles are carried by cars or othe...

Claims

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Application Information

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IPC IPC(8): B62K15/00
Inventor 崔晓宏
Owner 崔晓宏