Tensioning device for a safety belt component
AssigneeAutoliv Development AB
InventorOle Scharnberg
Life of this patent
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Abstract
A tensioning device for a safety belt component, comprising a gas generator for generating a pressurized gas, a piston which can be driven by the pressurized gas, a traction cable which is connected to the piston and can be connected to a safety belt component to be set in a tensioning movement, a tensioner tube for receiving and guiding the piston, a gas generator housing accommodating the gas generator, wherein the gas generator housing is arranged in the tensioner tube, and a seal, wherein the seal seals the gas generator housing against an inner side of the tensioner tube on a side facing the piston, wherein the seal has a first sealing lip which extends along the longitudinal extension direction of the tensioner tube.
Claims14
A tensioning device for a safety belt component, comprising
- a gas generator for generating a pressurized gas,
- a piston that can be driven by the pressurized gas,
- a traction cable which is connected to the piston and can be connected to a safety belt component that is to be set into a tensioning movement,
- a tensioner tube for receiving and guiding the piston,
- a gas generator housing accommodating the gas generator, wherein the gas generator housing is arranged in the tensioner tube, and,
- a seal, wherein the seal seals the gas generator housing against an inner side of the tensioner tube on a side facing the piston, wherein the seal has a first sealing lip which extends along the longitudinal extension direction of the tensioner tube and, at least when the gas generator is triggered, lies flat against the inside of the tensioner tube and is pressed against the inside of the tensioner tube by the pressurized gas.
Dependencies are inferred from the claim text.