Patent ID: 6196633
Filing Date: 2001-03-06
Classification: B60R

Abstract:
A retractor for a seat belt for use in a seat back of a reclining seat, said retractor comprising:a retractor base;a winding shaft rotatably supported on said retractor base for winding a webbing thereon;a Locking assembly interposed between said winding shaft and said retractor base for locking the rotation of said winding shaft in a webbing drawn-out direction thereof, wherein said locking assembly comprises:(A) a ratchet wheel loosely fitted with said winding shaft and having a plurality of teeth at its outer peripheral surface,(B) a lock member for locking the rotation of said winding shaft in a webbing drawn-out direction thereof by connecting said winding shaft to said retractor base when said ratchet wheel is rotated relative to said winding shaft, and(C) a friction member interposed between said lock member and said teeth of said ratchet wheel;a vehicle body acceleration sensor for detecting a predetermined vehicle body acceleration and for cooperating with said teeth of said ratchet wheel; anda restrict mechanism for preventing said locking assembly from actuating in accordance with an inclination angle of said seat back when the amount of said webbing wound around Said winding shaft is present between a first given amount corresponding to the most forwardly inclined state of said seat back and a second given amount corresponding to the most backwardly inclined state of said seat back while said seat belt is not in use.