Drive pulley, compact buckle pretensioner

Details Drive pulley, compact buckle pretensioner Drive pulley, compact buckle pretensioner

1997-11-13

2000-03-14

Nelson, Jr., Milton

Chairs and seats

Body or occupant restraint or confinement

Safety belt or harness; e.g., lap belt or shoulder harness

280806, A47C 3100

Patent

active

06036274&

ABSTRACT:
A pretensioner (22) comprising: a housing (20) with a bore (26); a piston (50) slidably received within the bore (26), the piston further including a pulley surface (58, 60) at one end thereof; a flexible link (92) having a first end (94) fixedly connected to the housing (22), a medial portion slidably positioned about the pulley surface and an opposite end (93) adapted to be connected to a buckle (90); a pyrotechnic device (80) for propelling the piston from a first, static position to a second position to affect a mechanical advantage in the movement of the buckle (90).

REFERENCES:
patent: 3439932 (1969-04-01), Lewis et al.
patent: 4932722 (1990-06-01), Motozawa
patent: 5207618 (1993-05-01), Nishizawa
patent: 5564748 (1996-10-01), Kmiec et al.
patent: 5676397 (1997-10-01), Bauer
patent: 5762372 (1998-06-01), Koujiya et al.
patent: 5788025 (1998-08-01), Nishide et al.

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