Trw Automotive Safety Systems Gmbh & Co. Kg

Trw Automotive Safety Systems Gmbh

Mst Automotive Gmbh

Michael Bathon

J&uuml;rgen Krebs

J&uuml;rgen Burgard

Stefan Bohn

Udo Bieber

Franz-Xaver Weiss

Stefen Fath

Kurt Kullmann

Kurt Kullman

Jurgen Zang

The invention relates to a steering wheel for motor vehicles, the steering wheel comprising a steering wheel axis, a skeleton surrounded by a foam casing, and an airbag module. The airbag module has a generator support connected with the skeleton and a covering cap fastened to the generator support. The covering cap is designed as an actuating device for generating a horn signal. At least two recesses are provided in the foam casing of the steering wheel skeleton and on the generator support insert pins are provided corresponding to the recesses. The pins have axes aligned parallel to the steering wheel axis. Further, the pins serve for centering the covering cap relative to the foam casing of the steering wheel skeleton in a plane perpendicular to the steering wheel axis.

Steering wheel with airbag module

An airbag module for arrangement in motor vehicle steering wheels has a cup-shaped generator carrier (,) and a covering cap (,). The generator carrier (,) consists of a shaped sheet metal section with a side wall (,) aligned parallel to the steering wheel axis (,). A plurality of outwardly angled tabs (,) are provided on the upper rim of the side wall (,). A rectangular opening (,) is arranged in the side wall (,) beneath each tab. Further, a bending tongue (,) connected with the side wall (,) is provided each beneath opening (,). The covering cap (,) consists of plastic and has a surrounding side wall (,) with slits (,) that is fitted externally against the side wall (,) of the generator carrier (,). The side wall (,) has radial openings (,) for engagement of the tabs (,) and radially inwardly directed integral projections (,) each of which when fitted against the side wall (,) of the generator carrier (,) rests on a lower rim of a opening (,) of the side wall (,). The bending tongue (,) in the mounted state is bent upwards, lying externally against the side wall (,) of the covering cap (,).

Airbag module

An airbag module for the passenger side of a vehicle with a diffusor pipe, a gas generator accommodated in and connected to the diffusor pipe, a folded-together air sack accommodated outside of and fastened to the diffusor pipe, a holder around the air sack, and cover components tensioned between a flange at one end of the gas generator or of a generator disk and the ends of the diffusor pipe and securely tensioning the edges of a loop that fits over the diffusor pipe and secures the air sack. The air sack around the holder essentially comprises a sack-like pouch of textile material around the diffusor pipe with two partly overlapping pieces attached to and detachable from each other and concealing the opening that the unfolding air sack emerges through.

Passenger-side airbag module

On the passenger side of a motor vehicle an air bag module is inserted in the instrument panel and is connected with a support stationarily disposed behind the aperture by holding plates, where at the upper holding plate at least one mounting bolt is disposed, which is engaged in a corresponding through hole of the support, and the mounting bolt has a recess and is coated with a plastic layer.

Attachment of an air bag module within an instrument panel

Growing community of inventors

Stockstadt, Germany

Michael Bathon