Retractor with both emergency and automatic locking mechanisms

Details Retractor with both emergency and automatic locking mechanisms Retractor with both emergency and automatic locking mechanisms

1986-10-22

1988-06-07

Watkins, Donald

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, A62B 3502, B65H 7548

Patent

active

047491434

ABSTRACT:
A retractor with both emergency and automatic locking mechanisms is provided. The retractor has take-up spindle means; a ratchet wheel; a pawl member engageable with the ratchet wheel and displaceable between a first position, where the pawl member prevents any further rotation of the take-up spindle means in the webbing-releasing direction, and a second position where the pawl member is maintained out of engagement with the ratchet wheel, said pawl member normally assuming the second position; control means for bringing the pawl member to the first position when the webbing is wound on the take-up spindle means after release of the webbing over at least a predetermined first length from the take-up spindle means and then to the second position when the webbing has been taken up over at least a predetermined second length; and an emergency locking mechanism for sensing an emergency state to prevent any further rotation of the take-up spindle means in the webbing-releasing direction.

REFERENCES:
patent: 3412952 (1968-11-01), Wohlert et al.
patent: 4436255 (1984-03-01), Matsui et al.
patent: 4437623 (1984-03-01), Wyder
patent: 4452405 (1984-06-01), Adomeit
patent: 4518132 (1985-05-01), Schmidt
patent: 4552319 (1985-11-01), Gavagan et al.
patent: 4555075 (1985-11-01), Schmidt et al.
patent: 4565338 (1986-01-01), Takada
patent: 4566649 (1986-01-01), Petersen, III
patent: 4573646 (1986-03-01), Willey
patent: 4619418 (1986-10-01), Butenop

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