Seat belt retractor

Winding – tensioning – or guiding – Reeling device – With spring motor

Patent

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Details

B60R 2228

Patent

active

057721440

ABSTRACT:
A seat belt retractor is formed of a base frame, a reel shaft rotatably supported by the base frame, a locking member for locking rotation of the reel shaft to prevent the webbing from unwinding at a collision, and an energy absorbing member for absorbing impact energy against a vehicle occupant. The energy absorbing member allows a predetermined length of the webbing to be drawn out with a certain tensile load held on the webbing only when reaction forces acting on the locking member exceed a predetermined threshold.

REFERENCES:
patent: 4273361 (1981-06-01), Takei et al.
patent: 4322046 (1982-03-01), Tanaka et al.
patent: 4323205 (1982-04-01), Tsuge et al.
patent: 5487562 (1996-01-01), Hedderly et al.

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