Belt tensioning mechanism

Details Belt tensioning mechanism Belt tensioning mechanism

1993-09-01

1994-10-25

Buiz, Michael Powell

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Guide roll mounted for movement of its axis along arcuate...

F16H 708

Patent

active

053584520

ABSTRACT:
Disclosed is a belt tensioning system having a lever, an idler pulley attached to the lever and contacting a belt, and a fluid cylinder acting on the lever for belt tensioning. In the invention, the cylinder applies a force to the lever through a first moment arm and the pulley applies tensioning force to a belt through a second moment arm. Because of the unique arrangement, the tensioning force applied to the belt is substantially constant, notwithstanding that the lengths of the moment arms change with changes in lever position as the length of the belt changes.

REFERENCES:
patent: 4094205 (1978-06-01), Cook
patent: 4283181 (1981-08-01), Sproul
patent: 4440930 (1983-08-01), Huhman et al.
patent: 4932926 (1990-06-01), Lauderbach et al.
patent: 5025614 (1991-06-01), Orsborn et al.
patent: 5116284 (1992-05-01), Cho
patent: 5176580 (1993-01-01), Stamm et al.
patent: 5176581 (1993-01-01), Kumm

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