Silent chain
AssigneeTsubakimoto Chain Co.
InventorsIsamu Okabe, Toshifumi Sato
Life of this patent
Estimating the term…
Abstract
In a silent chain, wear of the connecting pins and bushings, and wear elongation of the chain itself, are suppressed by the formation of through holes in the approximate centers of the teeth of toothed link elements for relieving strains in the inner peripheries of the bushings due to press-fitting of the bushings into the toothed link elements. The shortest distances between the bushing hole on the one hand, and the through-hole, the outside tooth surface and the inside tooth surface, on the other hand, are made substantially equal to one another. The through holes also reduce the weights of the individual link elements and contribute to a reduction in overall weight of the chain.
Claims2
A silent chain comprising a link assembly including at least two inner link plates, each link plate having a pair of teeth and a pair of bushing holes, said link plates being connected and fixed to one another by a pair of bushings, each said bushing being press-fit into bushing holes of all of said link plates of the link assembly, wherein each of said teeth of the inner link plates has a through-hole approximately in its center, the through holes making strains in the bushings press-fit into the bushing holes more uniform.
Dependencies are inferred from the claim text.