Coupling for a belt retractor with a belt tensioner
AssigneeTRW Occupant Restraint Systems GmbH & Co. KG
InventorJohannes Schmid
Life of this patent
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Abstract
A coupling for a belt retractor with a belt tensioner comprises a hub that can be driven by the belt tensioner and has several contact surfaces, and comprises several clamping rollers that are arranged in the hub in such a way that they can be urged radially inwards by the contact surfaces. The coupling further comprises a shaft that can be coupled to the hub by means of the clamping rollers. At least one return element is provided that urges the clamping rollers into a position out of engagement with the shaft.
Claims7
A coupling for a belt retractor with a belt tensioner, said coupling comprising a hub which is adapted to be driven by said belt tensioner and has several contact surfaces, and comprising several clamping rollers arranged in said hub in such a way that they are adapted to be urged radially inwards by said contact surfaces, and a shaft which is adapted to be coupled to said hub by means of said clamping rollers,
- at least one return element being provided that urges said clamping rollers into a position out of engagement with said shaft.
Dependencies are inferred from the claim text.