Motor vehicles – With belt or harness for restraining occupant – and means...
Patent
1987-10-07
1988-09-20
Rice, Kenneth R.
Motor vehicles
With belt or harness for restraining occupant, and means...
180286, 280806, 280807, B60R 2110
Patent
active
047718544
ABSTRACT:
A door mounted seat belt retractor has a spring biased reel winding the passive seat belt during closing movement of the door. An inertia locking mechanism locks the reel in response to a sensed acceleration condition. A brake level pivotally mounted on the retractor bears upon the outermost layer of belt wound on the reel to retard the windup of the belt as the door approaches the closed position to prevent the belt from being overly wound on the reel simultaneous with the occurrence of a door slam actuated locking of the reel. The brake lever is pivotally mounted on the retractor and includes a belt follower portion which causes the lever to be progressively pivoted as the windup of the belt progresses from the door open position to the door closed position. The lever has a belt braking portion which engages with the belt as the belt approaches the fully wound condition corresponding to closure of the door. An inertia weight is preferably carried by the brake lever distant from the pivotal mount of the brake lever on the retractor in order to impart a belt braking force which is proportional to the acceleration experienced by the door mounted retractor.
REFERENCES:
patent: 3190574 (1965-06-01), Purzycki
patent: 3866944 (1975-02-01), Takahshi
patent: 4478433 (1984-10-01), Taguchi et al.
patent: 4553625 (1985-11-01), Tsuge et al.
patent: 4630841 (1988-12-01), Nishimura et al.
General Motors Corporation
Leahy Charles E.
Rice Kenneth R.
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