Safety belt device for a vehicle
AssigneeVolkswagen Aktiengesellschaft
InventorCarsten Moeker
Life of this patent
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Abstract
A safety belt arrangement for a vehicle, with a belt force limiting unit which is constructed as a piston/cylinder assembly having a piston tube and a piston, which in the event of the belt force being limited is displaceable by a force limiting path in the piston tube, while expanding and plastically deforming the latter, whereby the belt force exerted on a vehicle occupant is limited to a predefined level of force. According to the invention, at least one tube element, which can be pushed telescopically onto the piston tube to form a double tube structure, is provided for setting the force level course over the force limiting path.
Claims12
A safety belt arrangement for a vehicle, comprising:
- a belt force limiting unit that is constructed as a piston/cylinder assembly having a piston tube and having a piston, which in an event of a belt force, the piston is displaceable in the piston tube about a force limiting path while expanding and plastically deforming the piston tube, such that the belt force exerted on a vehicle occupant is limited to a predefined force level;
- and
- at least one tube element to set a force level course over the force limiting path, the at least one tube element being pushed telescopically onto the piston tube to form a double tube structure,
- wherein an inner diameter of the at least one tube element is greater than an outer diameter of the piston tube by a slight play, and the at least one tube element is fixed at a predefined axial position on the piston tube.
A safety belt arrangement for a vehicle, comprising:
- a belt force limiting unit that is constructed as a piston/cylinder assembly having a piston tube and having a piston, which in an event of a belt force, the piston is displaceable in the piston tube about a force limiting path while expanding and plastically deforming the piston tube, such that the belt force exerted on a vehicle occupant is limited to a predefined force level;
- and
- at least one tube element to set a force level course over the force limiting path, the at least one tube element being pushed telescopically onto the piston tube to form a double tube structure,
- wherein the at least one tube element is a fastening clip, which peripherally surrounds the piston tube at a predefined axial position, the at least one tube element has a fastening tab projecting radially outwards, via which the at least one tube element is fastened to an adjoining component of a vehicle body,
- wherein the fastening tab of the tube element has an elongated hole for screwing to the adjoining component of the vehicle body, and
- wherein a longitudinal extension of the elongated hole is aligned axially parallel to the piston tube.
Dependencies are inferred from the claim text.