B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
74/264
B65G 23/44 (2006.01) F16H 7/12 (2006.01)
Patent
CA 1148771
(59-8) ABSTRACT A belt tensioning device for an endless drive belt for a vehicle accessories drive system. A bracket, which terminates in a pair of outwardly extending end flanges, is adapted to be mounted on a vehicle engine adjacent the drive belt. A cylindri- cal cup-shaped housing is mounted on each of the bracket flanges and contains a pair of volute springs. A plunger is operatively engaged by each of the volute spring pairs and is biased out- wardly from an open end of the housing toward the oppositely mounted spring housing. The axes of the plungers are parallel to each other and spaced apart. A lever is pivotally mounted on the bracket intermediate the spring housings and extends from the bracket perpendicularly with respect to the axes of the plungers. The plungers are connected to the lever, one on each side of the lever pivot point. An idler puller is rotatably mounted on the extended end of the lever and is moved in a belt tensioning direction for engagement with the drive belt by the biasing actions of the volute springs. The volute springs pro- vide and maintain a generally constant tensioning force on the drive belt, and also provide a damping effect due to the unequal load rate deflection of each spring coil and due to the sliding friction between the individual spring coils.
366556
Macrae & Co.
Spun Steel Ltd.
LandOfFree
Belt tensioner construction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Belt tensioner construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Belt tensioner construction will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-937944