Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Pulley or guide roll has eccentric mount for shifting or...
Patent
1994-11-28
1996-07-30
Buiz, Michael Powell
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Pulley or guide roll has eccentric mount for shifting or...
474135, F16H 708
Patent
active
055406270
ABSTRACT:
An auto-tensioner for applying tension to a transmission belt by a tension pulley and for damping reaction force acting from the belt. The tension pulley is rotatably supported to a lever member rotatably supported to a fixed pulley. A movable pulley is provided on the lever member at a position offset with respect to an axis of the tension pulley. An endless belt is wound between a circular friction surface of the fixed pulley and a circular friction surface of the movable pulley. An initial tension applying spring forces to move the movable pulley outward, thereby applying initial tension to the belt. When the movable pulley is moved by reaction force acting on the tension pulley from the transmission belt, damping force according to the reaction force is generated by grip generated between the belt and respective pulleys owing to change of tension between both spans of the belt.
REFERENCES:
patent: 4473362 (1984-09-01), Thomey et al.
patent: 4808148 (1989-02-01), Holtz
patent: 4934987 (1990-06-01), Kadota et al.
patent: 5266067 (1993-11-01), Gapco
Bando Chemical Industries Ltd.
Buiz Michael Powell
Cole Thomas W.
Ferguson Jr. Gerald J.
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