Foldable crank

A crank, together technology, applied in the field of bicycles or electric bicycles, can solve the problems of slow folding speed, complicated operation, poor folding effect, etc.

Inactive Publication Date: 2013-08-21
CHUAN WEI METAL PROD KUNSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the pedals are mainly folded in the market, but this kind of folding effect is not goo...

Method used

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  • Foldable crank
  • Foldable crank
  • Foldable crank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as Figure 1 to Figure 5 Shown: a folding crank, including crank 10, claw piece 20, connecting plate 30 and toothed plate 40; claw piece 20 includes shaft hole 23, said claw piece 20 is formed with claws 21 at intervals in the circumferential direction, claws 21 claw holes 22 are respectively formed at the ends of the connecting disc 30; ear holes 31 are formed at intervals in the inner circumference of the connecting disc 30; Hole 42; the screw 82 is threadedly connected with the perforation 41 and the ear hole 31, and the connecting plate 30 and the toothed plate 40 are connected together, and the stud 80 passes through the claw hole 22, and the first connecting hole 42 is threadedly connected with the nut 81 , connect the claw piece 20 with the toothed disc 40

[0018] The claw piece 20 is formed with a convex platform 24 from the shaft hole 23 axially toward the outside of the claw piece 20, and a connecting block 25 extends radially from the convex platform 2...

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PUM

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Abstract

The invention discloses a foldable crank which comprises a crank body, a claw sheet, a connecting disc and a fluted disc. A convex table is formed at the outer side of the claw sheet and a connecting block is extended in the radial direction from the convex table; a connecting portion is formed on the head portion of the crank body and the connecting portion is movably connected with the connecting block. According to the foldable crank, the crank body and the claw sheet are improved, so that the crank body is provided with the connecting portion and the claw sheet is provided with the connecting block. Due to the match of a connecting piece and a pulling piece, the crank body can vertically rotate around the connecting block of the claw sheet through the connecting portion so that the purpose of folding the crank body can be achieved. The foldable crank is simple in operation and high in folding speed.

Description

Technical field: [0001] The invention relates to the field of bicycles or electric bicycles, and more specifically relates to a folding crank. Background technique: [0002] The crank is an important part of the bicycle structure. With the development of society, people have more and more opportunities to travel or change jobs. For the convenience of carrying bicycles, folding bicycles are more and more popular, and the folding of the crank It determines the minimum width of the whole car, so the folding crank occupies a very important position in the field of folding bicycles or folding electric vehicles. At present, the pedals are mainly folded in the market, but the folding effect is not good, and the existing folding cranks have the disadvantages of complicated operation and slow folding speed. Invention content: [0003] The purpose of the present invention is to provide a folding crank, which has the characteristics of simple operation and fast folding speed. [00...

Claims

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Application Information

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IPC IPC(8): B62M3/00
Inventor 郑朝元
Owner CHUAN WEI METAL PROD KUNSHAN
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