Trw Automotive Gmbh

Ruediger Karl

Hans-Peter Betz

Dominik Seitzer

The invention relates to a belt tensioner () for a seat belt system comprising a belt shaft housing () and a belt shaft () pivoted in the belt shaft housing () about an axis (A), wherein prior to activation of the belt tensioner () the belt shaft () is retained in a torsionally fixed manner relative to the belt shaft housing () in at least one direction of rotation.

Belt tensioner for a safety belt system

A pyrotechnic pretensioner () for a safety system in a vehicle has an inflator () including a propelling charge () and an igniter () and including a housing () in which a pressure chamber () is provided into which gas can flow and in which a piston can be displaced by the gas, an end piece () which closes the pressure chamber () and in which a chamber () is formed into which the propelling charge () is filled and whose wall constitutes the wall of the propellant is provided on the housing ().

Pyrotechnic tensioner

A belt tensioner for a seat belt system includes a belt shaft housing, a belt shaft pivoted about an axis in the belt shaft housing, a rope reel tightly connected to the belt shaft. A tensioner drive includes a tensioner tube, a deformable plastic element guided to be longitudinally movable in the tensioner tube, a drive pinion and a pull rope which is partly wound onto the rope reel. The plastic element is adapted to engage in the drive pinion and to drive the drive pinion in the tensioning direction. During rotation of the drive pinion the pull rope is wound onto a rope drum of the drive pinion, on the one hand, and is unwound from the rope reel, on the other hand, while the belt shaft rotates.

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Weilheim, Germany

Ruediger Karl