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...
Patent
1988-07-25
1989-04-18
Bui, Thuy M.
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 712
Patent
active
048223220
ABSTRACT:
Apparatus for maintaining a predetermined optimum tension on an endless power transmission member, including a first cylindrical housing including a radially extending arm member, a pulley member carried by an arm member at the end thereof remote from the first housing, a pivot member for first housing, pivot member defining a pivot axis, and including a second cylindrical housing and one-way clutch member permitting pivoting of second housing in one direction only, second housing being disposed within first housing. Members coupled between the pivot member and first housing are included for rotatably driving said first housing about said pivot member in a first direction to move pulley member into tensioning engagement with endless power transmission member. Members carried by each of first and second housings are provided for permitting rotation of said first housing relative to second housing in second reversed direction, and including members for limiting the amount of pivoting of first housing in second direction such that pulley member continuously maintains optimum tension on the endless transmission member.
REFERENCES:
patent: 4392840 (1983-07-01), Radocaj
patent: 4473362 (1984-09-01), Thomey et al.
patent: 4583962 (1986-04-01), Bytzek et al.
patent: 4634407 (1987-01-01), Holtz
Bui Thuy M.
Ina Bearing Co., Inc.
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