Variable speed drive

Details Variable speed drive Variable speed drive

1977-04-27

1978-12-05

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

7424215R, F16H 5552, F16H 710

Patent

active

041280172

ABSTRACT:
A variable speed drive for a riding lawn mower or the like has a double pulley variable speed sheave assembly coupled between a driving pulley and a driven pulley by first and second V-belts, respectively. The sheave assembly is carried on a pivot arm pivotally mounted on a frame for the vehicle. A mechanical control linkage connected to the pivot arm is operable to shift the sheave assembly with respect to the driving and driven pulleys from a stopped position with both belts declutched through a range of low to high speed drive positions with the belts drivingly engaged. An idler pulley is carried on a spring lever assembly for engaging and variably tensioning one of the belts throughout said range of speed positions to place the belts under variable driving tension in accordance with operating speed.

REFERENCES:
patent: 3470757 (1969-10-01), Miley
patent: 3583535 (1971-06-01), Plamper
patent: 3628390 (1971-12-01), Vanderlely et al.
patent: 3759342 (1973-09-01), Plamper
patent: 3881370 (1975-05-01), Vogelaar et al.

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