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Improved bicycle chain structure

A bicycle and chain technology, which is applied in the field of bicycle chain structure, can solve the problems of reduced service life, large excavated area, and deformation of chain pieces, and achieve the effects of improving service life, small excavated area, and increasing strength

Inactive Publication Date: 2009-09-30
TIEN HSIN INDS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing structure connects the larger circular hole and the smaller circular hole through the elongated slotted hole, but the first head can still move in it, so it is impossible to ensure that the chain is completely kept in the smaller circular hole. Therefore, if the first head slides on the larger round hole due to external force or other factors during riding, the chain will be completely disassembled and fall off, which may lead to a rollover in severe cases
[0004] Furthermore, the chains are formed with larger and smaller round holes and elongated slots. The overall structure has a large excavation area, which affects the structural strength, leads to deformation of the chains or increases the possibility of loss, and reduces the service life.

Method used

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Embodiment Construction

[0029] The present invention relates to an improved bicycle chain structure, please refer to figure 1 As shown, it mainly includes two first chain pieces 10, four second chain pieces 20 and two chain pins 30, wherein:

[0030] The first chain piece 10 is provided with a first hole 11 and a second hole 12. The first chain piece 10 is provided with a mounting hole 13. The mounting hole 13 communicates with the second hole 12 and has a larger inner diameter than the second hole 12. The surface of the first chain piece 10 facing the second chain piece 20 is provided with at least one convex portion 14. In this embodiment, there are four convex portions 14, and two of the convex portions 14 are ring-shaped relative to the first hole 11 of the first chain piece 10. Set, and the line between the convex parts 14 is 90 degrees to the central line of the first hole 11 to the second hole 12, and the other two convex parts 14 are arranged in a ring relative to the second hole 2 of the fir...

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Abstract

The invention relates to an improved bicycle chain structure. The improved bicycle chain structure comprises a first chain piece, a second chain piece and a chain pin, wherein the first chain piece is provided with a first hole, a second hole and a mounting hole communicated with the second hole; at least one convex part is arranged on the surface of the first chain piece facing toward the second chain piece; the second chain piece is provided with a first hole and a second hole; at least one concave part is arranged on the surface of the second chain piece facing toward the first chain piece; one end of the chain pin is assembled together with the first hole of the first chain piece, while the other end is a head part having a groove; the outer diameter of the head part is not larger than the mounting hole of the first chain piece and is larger than the second hole of the first chain piece; and the outer diameter of the groove is not larger than the second hole of the first chain piece. During assembly, the chain pin passes through the first hole of the second chain piece and then passes through the mounting hole of another first chain piece; and the groove is buckled on the second hole of the first chain piece. In the normal status, the convex part presses against the non-concave area of the second chain piece. The improved bicycle chain structure increases the overall structural strength and the service life.

Description

technical field [0001] The invention relates to a bicycle chain, in particular to a detachable and improved bicycle chain structure. Background technique [0002] Please refer to US Patent No. 5362282 "Master ChainLink" for the existing bicycle chain structure, a reusable main chain structure patent, which mainly includes first and second parallel chain pins, the first and second chain pins are extending between the first and second parallel links, the first link pin includes first and second heads at opposite ends thereof, the second link pin includes first and second heads at opposite ends thereof, the The first and second link pieces are respectively formed with first and second hole portions having a smaller circular portion with respect to the first heads of the first and second link pins, the smaller The circular parts of each have a counterbore for accommodating and embedding the first heads of the first and second chain pins, and for burying the first heads in the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G13/06
Inventor 靳志忠
Owner TIEN HSIN INDS
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