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
1989-03-28
1990-06-19
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 708
Patent
active
049349899
ABSTRACT:
A belt transmission in which a transmission belt is reeved around each of a reversible drive pulley and a driven pulley and which includes a pair of tension pulleys provided respectively on the taut side and the slack side of the belt in contact therewith. The two tension pulleys are biased by an elastic body to tension the belt. A first link is connected to one of the tension pulleys, and a second link to the other tension pulley. The two links are each pivotally movable in a direction for the corresponding tension pulley to tension the belt and in a direction for the tension pulley to relieve the tension. The two links are pivotally movable about a common axis. When the direction of rotation of the drive pulley is changed, reversing the taut side and the slack side of the belt, the tension imparted to the belt by the tension pulleys is automatically adjusted properly by the pivotal movement of the two links.
REFERENCES:
patent: 976115 (1910-11-01), Bard
patent: 2945393 (1960-07-01), Paulson
patent: 3811332 (1974-05-01), Brown et al.
Dei Yosihito
Fukumoto Katsumi
Furukawa Kazuo
Kato Yoshihiro
Sampei Keiichi
Bui Thuy M.
Kubots, Ltd.
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