B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 7/06 (2006.01) B60T 7/02 (2006.01)
Patent
CA 2167148
A parking brake mechanism having a spring pressed rotary assembly providing a cable connection movable in opposite directions within an arcuate path and a cylindrical surface movable in opposite directions within the plane of the cylindrical surface in conjunction with the movement of the cable connection. A helical coil spring is provided having a series of volutes constructed and arranged to be biased to engage the exterior cylindrical surface and a movable end portion constructed and arranged to be moved from a normal imperative position into a volute-disengaging position wherein the normal biased engagement of the volutes with the exterior cylindrical surface is relieved to allow the cylindrical surface to move in opposite directions within the plane thereof and the cable connection to move in opposite directions within the arcuate path thereof and the movable end portion is constructed and arranged with respect to an abutment and a lever assembly which carries the rotary assembly such that (1) when the lever assembly is in a brake-releasing position the movable end portion is maintained by the abutment in the volute-disengaging position thereof to allow the cable connection to move within the arcuate path thereof in opposite directions to maintain a desired slack tension on a cable connected therewith and (2) when the lever assembly is out of the brake-releasing position thereof the movable end portion is maintained in the normal inoperative position thereof so that during the movement of the lever assembly out of the brake-releasing position thereof into a brake-applying position thereof the cable connection will pull a cable connected thereto.
Atoma International Inc.
Porat Alex
LandOfFree
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