B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 7/02 (2006.01) B60T 7/04 (2006.01) B60T 7/10 (2006.01) B60T 17/00 (2006.01)
Patent
CA 2084850
-15- SOFT RELEASE CONTROL MECHANISM WITH SPRING CLUTCH AND VISCOUS DAMPING ABSTRACT A control mechanism of the soft release type includes a cylindrical drum about which is concentrically arranged a helical clutch spring the coil turns of which are normally contracted radially inwardly into frictional engagement with the outer periphery of the drum, characterized in that the drum is formed of powdered metal that is impregnated with damping oil. Owing to the direction of the coil turns, the drum may be rotated only in a first direction relative to the spring, and upon radial outward expansion of the spring, the viscous film of the dampening oil between the outer periphery of the spring affords controlled soft-release of the drum for rotation in the opposite direction.
Heimann Robert L.
Perisho Randal J.
Soucie Wayne L.
Borden Ladner Gervais Llp
Heimann Robert L.
Perisho Randal J.
Soucie Wayne L.
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