Seat belt retractor and pretensioner combination

Details Seat belt retractor and pretensioner combination Seat belt retractor and pretensioner combination

2004-11-30

2010-06-15

Dickson, Paul N (Department: 3616)

Land vehicles

Wheeled

Attachment

C242S374000

Reexamination Certificate

active

07735871

ABSTRACT:
The invention relates to a seat belt retractor including a pretensioner especially for use in motor vehicles. The seat belt retractor includes a spool belt which supports belt webbing of the seat belt and rotates in the take-up direction of the safety belt when the pretensioning drive coupled to the belt spool is activated. The belt spool is associated with a drivewheel with recesses on the periphery thereof for accepting mass bodies acting as drive means for pretensioning the seat belt. The mass bodies are stored in a tube, which tangentially flows into the drivewheel, and the mass bodies are accelerated in the tube by means of a gas generator arranged at one end of the tube.

REFERENCES:
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patent: 6419176 (2002-07-01), Mizuno
patent: 6669131 (2003-12-01), Takehara et al.
patent: 2005/0178870 (2005-08-01), Loffler et al.
patent: 195 12 660 (1995-10-01), None
patent: 696 03 158 (2000-03-01), None
patent: 102 13 906 (2003-10-01), None

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