F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/264
F16H 7/12 (2006.01) F16H 7/08 (2006.01)
Patent
CA 1280298
ABSTRACT OF THE DISCLOSURE: A belt tensioning device for engagement with the endless drive belt of a vehicle accessories drive system. A pivot support base is adapted to be mounted on a vehicle engine in a stationary position adjacent the drive belt and has a lever arm assembly pivotally mounted thereon. An idler pulley is mounted on an extended end of the lever arm assembly and is biased into tensioning engagement with the drive belt by a torsional coil spring. An arcuate-shaped plastic bearing strip is located between arcuate surfaces of the pivot support base and an outer cylindrical housing portion of the lever arm assembly and has two distinct bearing surfaces. The lever housing slides on the bearing strip during movement of the lever arm towards and away from the drive belt which provides frictional damping for the lever to reduce undesirable movement of the idler pulley.
544999
Borden Ladner Gervais Llp
Gates Power Drive Products Inc.
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