Chain drive and automatic chain tensioning unit

Details Chain drive and automatic chain tensioning unit Chain drive and automatic chain tensioning unit

1978-05-01

1980-03-04

Husar, C. J.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

F16H 716

Patent

active

041910621

ABSTRACT:
An automatic drive chain tensioner having a pair of idler assemblies, with each idler assembly comprising an idler sprocket and an indexing sprocket on each side of, and concentrically connected to, the idler sprocket with each idler assembly being adapted to be positioned on the outside of a drive chain loop on a chain run between a drive and driven sprocket with the idler sprocket thereof adapted to be engaged in the drive chain and with the idler assemblies on different and opposite spaced-apart drive chain runs; and a pair of indexing chain loops, each one of which is adapted to engage an indexing sprocket on each of the spaced-apart idler assemblies on the same side of the drive chain. Desirably, the idler sprockets are the same size and, desirably, the indexing sprockets are the same size but not necessarily the same size as the idler sprockets.

REFERENCES:
patent: 1575655 (1926-03-01), Stinson
patent: 2875842 (1959-03-01), Morrell
patent: 2897683 (1959-08-01), Carver
patent: 3060760 (1962-10-01), Minnis
patent: 3374686 (1968-03-01), Brewer
patent: 3575058 (1971-04-01), Kraus
patent: 3602054 (1971-08-01), Jackson et al.
patent: 3630096 (1970-08-01), Brewer
patent: 3926063 (1975-12-01), Mayfield
patent: 3941006 (1976-03-01), Brodesser
patent: 4034821 (1977-07-01), Stoddard et al.
patent: 4069719 (1978-01-01), Cancilla

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