Silent chain

a technology of silent chain and resonance, applied in the direction of driving chains, belts/chains/gearrings, chain elements, etc., can solve the problems of reducing the power transmission efficiency of the chain, noise occurrence, etc., and achieve the reduction of the chordal oscillation, and the reduction of the resonan
US20070072719A1Inactive Publication Date: 2007-03-29BORGWARNER INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BORGWARNER INC
Publication Date
2007-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

String vibration is reduced without causing friction loss. A silent chain is comprised of a multiple number of link plates, each of which has a pair of tooth portions and pin holes and which are laminated laterally and longitudinally and guide plates which are arranged at outermost positions of the link plates. The link plates and the guide plates are connected by connecting pins. In this construction, some of the guide plates are made heavier than that of other guide plates and are irregularly mixed in a longitudinal direction of the chain. Thus, the natural frequency can be changed in an arbitrary chain span and string vibration may be reduced without causing friction loss.
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Description

REFERENCE TO RELATED APPLICATIONS

[0001] This application claims an invention which was disclosed in Japanese application No. 2005-281751, filed Sep. 28, 2005, entitled “SILENT CHAIN”. The benefit under 35 USC §119(a) of the Japanese application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a silent chain in which multiple link plates each having a pair of teeth and pin apertures are interleaved in the longitudinal and lateral directions and interconnected to each other by the connecting pins, and more particularly, to an improvement of the structure of the silent chain to decrease the chordal oscillation.

[0004] 2. Description of Related Art

[0005] Silent chains are used as timing chains for automobiles, motorcycles, and the like. A silent chain is typically comprised of multiple link plates each having a pair of teeth and pin apert...

Claims

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