Land vehicles – Wheeled – Attachment
Patent
1993-07-19
1994-08-23
Johnson, Brian L.
Land vehicles
Wheeled
Attachment
180274, 297472, 188371, 280808, B60R 2228, B60R 2246
Patent
active
053401522
ABSTRACT:
A belt tensioner for a safety belt system having a belt retractor (10) featuring an automatic blocking mechanism, the belt (14) running in a straight line from the belt retractor to a deflector fitting (12), comprises a U-shaped deflector fitting (18) mounting a pivotal bracket (22) perpendicular to the run of the belt in the rest condition. When the belt tensioner is activated the pivotal bracket (22) is pulled through between the base of a deflector fitting (18) and a supporting member (20) secured thereto to form a belt loop. An uncoupling/force limiter assembly (36) is arranged in the path of the cable (34, 38) connected to the pivotal bracket. This assembly comprises a guide tube (50) supported by the vehicle body and a converter tube (52) accommodated therein telescopically which is shiftable up to a stop at the base of the guide tube (50) and which permits force limitation and conversion of energy due to plastic material deformation when the belt is tensioned.
REFERENCES:
patent: 4152025 (1979-05-01), Bendler et al.
patent: 4258934 (1981-03-01), Tsuge et al.
patent: 4422669 (1983-12-01), Chiba et al.
patent: 4795189 (1989-01-01), Vollmer et al.
patent: 5076608 (1991-12-01), Shimose
patent: 5127671 (1992-07-01), Yano et al.
patent: 5174409 (1992-12-01), Osawa
English Peter
Johnson Brian L.
TRW (Repa) GmbH
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