Tension relieving mechanism

Details Tension relieving mechanism Tension relieving mechanism

B - Operations, Transporting

60

R

242/43.1

B60R 22/44 (2006.01)

Patent

CA 1167013

TENSION RELIEVING DEVICE ABSTRACT A safety belt retractor having a rewind spring for turning a reel to retract and to rewind a safety belt onto the reel is provided with a tension relieving means for reducing the belt tension from that being asserted on the belt which has been protracted from the reel. The tension relieving means includes a rotatable member having a friction surface thereon connected to rotate with the reel. A coil spring means has a spring coil for frictionally engaging the frictional surface to hold the rotatable member and the reel against rewinding the protracted belt thereby relieving the occupant of the tension of the spring means acting through the belt onto the occupant's body. The control means is provided for changing the size of the coil to either grip or to release the frictional surface. The preferred control means includes cams. The sequence of operation of the belt may operate the spring means and the control means to either release the belt for rewind or to hold the same against the force being asserted by the rewind spring means.

390405

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