Single pin rocker joint bushing chain
AssigneeBorg-Warner Automotive Transmission & Engine Components Corporation
InventorPhilip J. Mott
Life of this patent
Estimating the term…
Abstract
A rocker joint is provided which is constructed from the pins and bushings f the links. The pin members have a working front surface and a convex back surface. The bushings have apertures therein which include an arcuate working surface. The pins are disposed in the apertures of the bushings such that the pin member working surface engages and rocks on the curved surface defined by the aperture of the bushing. The rocker joint has application to roller chain and silent bushing chain.
Claims20
A chain for use with a sprocket, said chain having a series of interleaved inner links and outer links;
- each outer link having a pair of outer link plates fixedly mounted to spaced pin members, said pin members having front working surfaces and back surfaces, said pin front working surface being a rocking contact surface;
- each inner link having a pair of bushings, said bushings having apertures with convexly curved arcuate working surfaces extending along a portion of their inside length, said bushings being mounted to turn about said pin members of said outer links, said inner links having inner link plates fixedly mounted to said bushings;
- each of said inner links and said outer links being adapted to contact a sprocket tooth;
- said pin members being received in the apertures of some of said bushings such that the front working surface of said pin member and said convexly curved arcuate working surface of said bushing aperture engage and rock on one another.
A rocker joint for a chain constructed of an assembly of links and pivot members, said chain comprising a plurality of sets of interleaved links, each link being interleaved with adjacent links by said pivot members,
- said pivot members including a pin and rocker, said rocker being defined by a bushing member inserted in an aperture of said link,
- at least one of said pins having a front working surface and a convex back surface, said pin front working surface being a rocking contact surface, said bushing having an aperture with a convexly curved arcuate working surface extending along its length,
- said pin being disposed within said bushing such that the front working surface of said pin and said convexly curved arcuate working surface of said bushing aperture engage and rock on one another.
Dependencies are inferred from the claim text.