Articulating pin for bicycle chains and relative chain

A joint pin, bicycle technology, applied in the chain field, can solve the problems of assembly cost and time, difficult to handle by end users, complicated final assembly of the chain, etc., and achieve the effect of avoiding mechanical interference, minimizing the risk of damage, and effectively connecting

Active Publication Date: 2009-10-21
CAMPAGNOLO SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The welding of the knuckle pins complicates the final assembly of the chain and is difficult to handle by the end user
Also, soldering has a negative impact on assembly cost and time

Method used

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  • Articulating pin for bicycle chains and relative chain
  • Articulating pin for bicycle chains and relative chain
  • Articulating pin for bicycle chains and relative chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] refer to figure 1 , the chain 1 according to the invention comprises outer links 5 alternating with inner links 10, the inner links 10 and the outer links 5 being articulated to each other. Each outer link 5 includes a pair of outer plates 7 arranged parallel to each other and spaced apart so that the inner link 10 is interposed therebetween. Each inner link 10 includes a pair of inner plates 12 arranged parallel to each other and spaced apart so that the pin 15 is interposed therebetween.

[0072] The outer plates 7 are substantially flat and comprise through holes 17 at their ends.

[0073] Differently, the inner plate 12 has curved ends to form an annular rim 18, as in figure 2 The annular rim 18 is shown extending axially around the bore 19 .

[0074] Such as figure 2 As shown in , the outer link 5 and the inner link 10 pass over each other at their respective ends so that the holes 17 and 19 are aligned with each other and with the hole 20 at the center of th...

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Abstract

The invention relates to an articulating pin for bicycle chains and relative chain. Concretely, the articulating pin for bicycle chains, of the type capable to be inserted in aligned holes of an outerlink and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal portion is elastically deformable for the insertion th rough the holes. The invention also discloses a lock button for bicycle chains, which is characterized in that the lock button can deform plasticly to prevent the wall of the pin from deforming or moving along the related lognitudinal axes. The invention also discloses a lock assembly for chains including the said articulating pin and the corresponding lock button, a bicycle drive chain including the said assembly and tools for assembling the bicycle chain.

Description

technical field [0001] The present invention relates to an articulating pin for a bicycle chain and a chain assembled with such a pin. Background technique [0002] Traditional bicycle chains are manufactured as a series of alternating inner and outer links. Each outer link consists of a pair of opposed and spaced plates hinged at their respective inner faces at their ends to a pair of plates forming an inner link. The gap defined by the inner links is smaller than the gap defined by the outer links, but still sufficient to accommodate the teeth of the sprocket or crown gear of the corresponding bicycle. The plates making up the inner links are kept spaced apart by pins which, during operation, come into abutment with the sides of the teeth of the bicycle's sprocket or crown gear. [0003] The plates forming the inner and outer links of the drive chain are provided with through holes. During the chain's final assembly step, the articulation pins are inserted into aligned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G13/06
CPCB21L9/065F16G13/06Y10T29/53909
Inventor 毛里齐奥·瓦莱莱奥波尔多·拉扎林
Owner CAMPAGNOLO SRL
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