Belt tensioner
AssigneeTRW Occupant Restraint Systems GmbH & Co. KG
InventorsGerhard Greiner, Franz Seeberger, Franz Wier
Life of this patent
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Abstract
A belt tensioner for a 3-point vehicular seat belt system comprises a belt webbing, a belt retractor as a first anchoring point, a belt buckle as a second anchoring point, an end fitting as a third anchoring point of the seat belt system and a tensioner drive. To offer various possibilities of accommodation even under restricted space availability conditions in the vehicle, the tensioner drive engages the end fitting, or the webbing next to the end fitting. Upon activation of the tensioner drive, the tensioner drive exerts tension on the belt webbing.
Claims5
A belt tensioner for a 3-point vehicular seat belt system comprising:
- a belt webbing;
- a belt retractor as a first anchoring point;
- a belt buckle as a second anchoring point;
- an end fitting as a third anchoring point of the seat belt system;
- and
- a tensioner drive wherein said tensioner drive engages said seat belt webbing at a point of engagement next to said end fitting and between said belt buckle and said end fitting, said tensioner drive exerting tension on said belt webbing when activated;
- said belt webbing being guided between said belt buckle and the point of engagement of said tensioner drive via a deflector fitting anchored to the vehicle body;
- and
- said tensioner drive engages said belt webbing between said deflector fitting and said end fitting thereby forming a belt loop.
Dependencies are inferred from the claim text.