Trw Automotive Safety Systems Gmbh & Co. Kg

Trw Automotive Safety Systems Gmbh

Udo Bieber

Christian Lorenz

Ralph Neupert

Martin Kreuzer

Matthias Helmstetter

John-Oliver Derrick

Michael Bathon

J&uuml;rgen Burgard

J&uuml;rgen Krebs

Kurt Kullman

Achim Hehl

A gas bag module for a vehicle occupant restraint system includes a gas generator carrier () with a base () and with a peripheral wall (), and also a covering cap () with a side wall () extending from a front wall () of the covering cap (). Detent hooks () are formed on the edge of the side wall () facing away from the front wall (), which engage into corresponding detent openings () in the base () of the gas generator carrier ().

Gas bag module

The invention relates to a the gas bag module, comprising a gas bag and a module housing which has a front wall that closes a ring-shaped outlet opening for the gas bag. A centric portion of the front wall is attached radially inwardly of the outlet opening such that, in the region of attachment, the centric portion is prevented from freely moving outwards when the front wall is opened. At least the centric portion of the front wall, which is attached to the module, has such a thickness and elasticity that upon deployment of the gas bag it swivels, without tearing open radially, about the attachment outwards and radially inwards, as seen from the module, and makes folds in order to clear the ring-shaped outlet opening.

The invention relates to a gas bag module comprising a covering cap which is visible from the exterior in an installed state and covers an outlet opening for a gas bag. The module further comprises at least one display integrated in the covering cap and a lighting for the display provided on a rear face of the covering cap. The covering cap has a front wall visible from the exterior with a section covering the outlet opening, the section being connected in one piece with a display section lying over the lighting. In the display section, the covering is constructed so as to be transparent or translucent. The display section is made of a first material component of the covering cap and the covering cap includes a second material component which has a carrier layer in the form of a cup. The base of the cup forms the section closing the outlet opening and the peripheral wall of which laterally delimits an accommodation space for the gas bag.

A method of producing a vehicle steering wheel including a steering wheel rim comprises the following steps: A foaming mold with a top part and a bottom part is used; two different foam components, namely, a central carrier component as well as a soft component surrounding the latter, are injected into the bottom part which is not closed by the top part; the foaming mold is closed by closing the bottom part with the top part, and; the foaming mold is heated.

Method of producing a vehicle steering wheel

An airbag module for occupant restraint systems in vehicles has a pot-like housing part ( ) made of sheet metal to the base ( ) of which a gas generator is attached and to the circumferential wall ( ) of which, extending upwards from the base ( ), an airbag ( ) and a covering cap ( ) made of plastic are attached. The covering cap ( ) has a supporting wall ( ) that is in contact with the outside of the circumferential wall ( ) of the housing part ( ). The supporting wall ( ) is provided with cutouts ( ). On the free edge of the circumferential wall ( ) of the housing part ( ) facing away from the base ( ), there are arranged hook-shaped metal tabs ( ) which pass through the cutouts ( ) of the supporting wall ( ) of the covering cap ( ) and which are bent on their outside in the direction toward the base ( ) of the housing part ( ). The free edge of the supporting wall ( ) of the covering cap ( ) facing the base ( ) of the housing part ( ) is held in contact with the circumferential wall ( ) of the housing part ( ) by means of bending tabs ( ) that have been punched out of the housing part ( ) and bent against the outside of the supporting wall ( ).

Airbag module

The invention relates to a gas bag restraining device comprising a gas bag module which has a gas bag with a front wall upon which an occupant to be restrained can impact in a case of restraint. The front wall has a depression which is produced in that a center portion of the front wall is attached to the module and is prevented from moving when the gas bag is inflated. The gas bag restraining device further comprises a module cover closing a ring-shaped outlet opening of the gas bag module. The module cover has a central hole which is covered by a cap which is stationary during opening of said gas bag module. The module cover has an edge defining the central hole and opens, preferably tears, towards outside starting from the edge. A holding connection is provided between the edge and the cap which is released when said gas bag module is opened.

Gas bag restraining device

The invention relates to a shock-absorbed vehicle steering wheel which comprises a hub with a steering wheel mounting and a handling region for a driver. The handling region is, in particular, a steering wheel rim. A vibration damper is provided in a path of the flux of force between the steering wheel mounting and the handling region. The vibration damper has damping characteristics which are adjustable via one of an electrical and magnetic field.

Shock-absorbed vehicle steering wheel

A method for manufacturing a cover cap for a gas bag restraint module, which cover cap tears open for deployment of a gas bag, contains the step of treating the cap at least region-wise physically and/or chemically such that its material in a treated region has a lower strength than in an untreated state. The treated region is a predetermined tear-open region for allowing the gas bag to unfold. A cover cap made of plastic for a gas bag restraint module has a predetermined tear region. The cap has a higher brittleness at said tear region than in a remainder of said cap.

Method for manufacturing a cover cap for a gas bag restraint module and cover cap

The invention relates to a passenger gas bag protection device which comprises a gas bag which, in relation to an inflated state, has a rear wall and a front wall which includes a center section and onto which a passenger strikes in the case of an accident. The gas bag, from a viewpoint of the passenger, has a round outer contour with a specific width and height in the inflated state. The width of the outer contour distinctly exceeds the height. In the inflated state the front wall has a depression opening out to the outside in the manner of a slit. The slit runs in a direction of the width of the gas bag. A restraint means is provided and the depression is formed in that on inflation of the gas bag a center section of the front wall is prevented from moving by means of the restraint means.

Passenger gas bag protection device

The invention relates to a covering cap for a gas bag module of a vehicle occupant restraint device. The covering cap comprises at least one plastic layer and is provided at least in places with a heating means.

Covering cap for a gas bag 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 (,).

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Niedernberg, Germany

Udo Bieber