Belt tightener
AssigneeTRW Automotive GmbH
InventorsKacprzak Michal, Seitzer Dominik, Betz Hans-Peter
Life of this patent
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Abstract
The invention relates to a belt tensioner (30) for a vehicle occupant restraint system comprising a housing (32), a working chamber (34) into which the compressed gas released in the case of restraint is flowing, a pull rope (24) extending through an opening (36) within the housing (32) and a sealing bush (10) for sealing the working chamber (34) against the opening (36) between the pull rope (24) and the housing (32), with the sealing bush (10) comprising a sleeve (16) and a sealing element (12) and the sealing bush (10) being pressed onto the pull rope (24) by plastic deforming of the outer sleeve (16).
Claims11
A belt tensioner (30) for a vehicle occupant restraint system comprising a housing (32), a working chamber (34) into which compressed gas released in a case of restraint is flowing, a pull rope (24) extending through an opening (36) within the housing (32) and a sealing bush (10) for sealing the working chamber (34) against the opening (36) between the pull rope (24) and the housing (32), wherein the sealing bush (10) comprises an outer sleeve (16) and an inner sealing element (12), with the sealing bush (10) being pressed onto the pull rope (24) by plastic deforming of the outer sleeve (16), and wherein the sealing bush (10) is maintained in a fixed position within the housing (32) by contacting a shoulder of the housing on one side of the sealing bush (10).
Dependencies are inferred from the claim text.