Winding – tensioning – or guiding – Reeling device – With spring motor
Patent
1997-10-16
1999-03-30
Jillions, John M.
Winding, tensioning, or guiding
Reeling device
With spring motor
2423827, B60R 2228, B60R 22415
Patent
active
058878149
ABSTRACT:
A seat belt retractor according to the present invention comprises a torsion bar 2 which is connected integrally with a bobbin 3 on one end side thereof and is connected integrally with a locking base 5 on the other end side thereof, a pawl 16 for preventing the rotation of the locking base 5 in the webbing pull-out direction thereof, a ratchet wheel 18 for bringing the pawl 16 into engagement with an engaging internal teeth 25 in a vehicle emergency, a control plate 65 which, in accordance with the winding amount of a webbing 50, positions a lock lever 55 at a first position in which the lock lever 55 is engaged with the ratchet wheel 18 and the pawl 16 is engaged with the engaging internal teeth 25 or at a second position in which the lock lever 55 is not engaged with the ratchet wheel 18, and a lock member 80 which, when the lock lever 55 is positioned at the first position, can be engaged with the ratchet teeth 3b of the bobbin 3 to thereby prevent the rotation of the bobbin 3 in the webbing pull-out direction thereof. Accordingly, it is possible to provide an improved seat belt retractor which can switch an energy absorbing mechanism between its operation condition and its non-operation condition by use of a simple structure.
REFERENCES:
patent: 3741494 (1973-06-01), Fiala
patent: 3790099 (1974-02-01), Beller
patent: 4811912 (1989-03-01), Takada
patent: 5257754 (1993-11-01), Hishon
patent: 5526996 (1996-06-01), Ebner et al.
patent: 5628469 (1997-05-01), Fohl
Hibata Ganta
Matsuki Masuo
Jillions John M.
NSK Ltd.
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