Safety seat-belt retractor

Details Safety seat-belt retractor Safety seat-belt retractor

1980-06-26

1982-04-06

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

280805, 297472, A62B 3502, B65H 7548

Patent

active

043232051

ABSTRACT:
A safety seat-belt retractor for use in vehicles, comprising a fixed frame, a winding shaft rotatably mounted on the frame, and a toothed member mounted on the shaft for relative rotation thereto. A pawl is operative in response to a predetermined deceleration of a vehicle to lock the toothed member against rotation relative to the frame. A first projection and a second annular projection are formed on an axial end face of the toothed wheel with the first projection radially spaced from and positioned between the second annular projection and the shaft. An elongated energy-absorption member has one end thereof secured to the shaft and the other end free and extends between the shaft and the first projection, around the latter in U-shape and between the first and second projections. The elongated energy-absorption member is forcedly drawn by and wound around the shaft to absorb a tension on the seat-belt when the toothed member is locked by the pawl.

REFERENCES:
patent: 3561690 (1971-02-01), Muskat
patent: 3666198 (1972-05-01), Neumann
patent: 4273361 (1981-06-01), Takei et al.

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