Apparatus and process for dead zone control in safety belt retra

Details Apparatus and process for dead zone control in safety belt retra Apparatus and process for dead zone control in safety belt retra

1977-12-29

1979-10-23

Hornsby, Harvey C.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

A62B 3500, B65H 7548

Patent

active

041717821

ABSTRACT:
A retractor and method for preventing premature movement of a lock pawl or bar toward locking engagement with a ratchet driven by the drum of the retractor structure and achieved by a torsion spring connected to and driven by the drum. The drum movement in both a retracting and protracting direction applies opposite biases to a pawl blocking element and the preselection of each bias zone being achieved on assembly of the spring to the retractor drum at a selected point in retraction and protraction.

REFERENCES:
patent: 3510085 (1970-05-01), Stoffel
patent: 3741495 (1973-06-01), Takada
patent: 3873041 (1975-03-01), Rumpf et al.
patent: 3883089 (1975-05-01), Close

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