Seat belt retractor for passenger restraining systems

Details Seat belt retractor for passenger restraining systems Seat belt retractor for passenger restraining systems

1994-08-02

1997-01-14

Darling, John P.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2240, B65H 7548

Patent

active

055931057

ABSTRACT:
On a belt retractor for vehicular seat belt restraining systems having a vehicle and belt sensitive automatic blocking mechanism (26) for the belt reel (12) rotatably mounted in the housing (10) the pawl tooth of a locking pawl (18) first coming into contact with the locking toothing (16) is formed as the control tooth (181). A control link (22) of the locking pawl (18) exhibits a radial stroke which is dimensioned so that the locking pawl (18) is swivelled by the control cam (24) up to first contact of the control tooth (181) with a tooth flank of the locking toothing (16) past which it is further swivelled unsubstantially at the most. After initial contact of the control tooth (181) with a tooth flank of the locking toothing (16) a torque is exerted by rotation of the belt reel on the locking pawl (18) as a result of which the locking pawl (18) is forced to swivel up to positive interlock of the pawl teeth (182, 183) with the locking toothing (16).

REFERENCES:
patent: 3995787 (1976-12-01), Takada
patent: 4083512 (1978-04-01), Rumpf
patent: 4467980 (1984-08-01), Fohl
patent: 4726541 (1988-02-01), Tsukamoto et al.
patent: 4895317 (1990-01-01), Rumpf et al.
patent: 4907820 (1990-03-01), Fohl
patent: 5332291 (1994-07-01), Fujimura et al.
patent: 5351908 (1994-10-01), Umezawa et al.

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