Gas bag module for a vehicle occupant restraint system and method for producing a gas bag module
AssigneeTRW Occupant Restraint Systems GmbH & Co. KG
InventorRoland Brucker
Life of this patent
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Abstract
A gas bag module for a vehicle occupant restraint system comprises an elongated housing which consists of two side pieces and in which a flow channel for compressed gas is provided, a gas bag which can be transferred by the compressed gas from a folded position into an unfolded position and which is accommodated in the housing in its unfolded position, and a closure plate constructed in one piece with one of the side pieces. The flow channel is formed by the side pieces of the housing and by the closure plate. The closure plate has passages for the compressed gas. Further, a method or producing a gas bag module is provided wherein the flow channel is formed by bending a cast or injection molded plastic housing.
Claims19
A gas bag module for a vehicle occupant restraint system, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position, and a closure plate constructed in one piece with one of said side pieces;
- said flow channel being formed by said side pieces of said housing and by said closure plate;
- and
- said closure plate having passages for said compressed gas, said two side pieces touching each other on a side of said gas bag facing away from said flow channel, so that said housing is closed there.
A gas bag module for a vehicle occupant restraint system, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position;
- and
- a closure plate constructed in one piece with one of said side pieces;
- said flow channel being formed by said side pieces of said housing and by said closure plate, said closure plate having passages for said compressed gas, wherein projections are formed on said closure plate, said projections engaging into openings constructed in one of said side pieces.
A gas bag module for a vehicle occupant restraint system, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position;
- and
- a closure plate constructed in one piece with one of said side pieces;
- said flow channel being formed by said side pieces of said housing and by said closure plate, said closure plate having passages for said compressed gas, wherein on one of said side pieces a fixing plate is provided, said fixing plate being connected to said one side piece by means of a bending line which extends parallel to said one side piece, said fixing plate being provided with a groove to receive an edge of said gas bag, said closure plate being provided on an edge of said fixing plate facing away from said bending line.
A gas bag module for a vehicle occupant restraint system, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position;
- and
- a closure plate constructed in one piece with one of said side pieces;
- said flow channel being formed by said side pieces of said housing and by said closure plate, said closure plate having passages for said compressed gas, the other of said side pieces not being provided with said closure plate, said other of said side pieces being provided with reinforcement elements which reinforce said flow channel.
A method for producing a gas bag module for a vehicle occupant restraint system, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position;
- and
- a closure plate constructed in one piece with one of said side pieces, the other of said side pieces not being constructed with said closure plate;
- said flow channel being formed by said side pieces of said housing and by said closure plate, said closure plate having passages for said compressed gas, said housing being constructed of plastic and being a shaped part in one piece, said method comprising the steps of:
- providing said housing without a closed profile in an open position;
- bending said housing to form said flow channel;
- and
- connecting bent sections of said housing.
A method for producing a gas bag module, said module comprising:
- an elongated housing which comprises two side pieces and in which a flow channel for compressed gas is provided;
- a gas bag which can be transferred by means of said compressed gas from a folded position into an unfolded position and which is accommodated in said housing in its folded position;
- and
- a closure plate constructed in one piece with one of said side pieces;
- said housing having an open state immediately after its production in which state said gas bag can be inserted into said housing, and having a closed state after insertion of said gas bag in which state the gas bag module is to be attached to a vehicle;
- said flow channel being formed by said side pieces of said housing and by said closure plate, said closure plate having passages for said compressed gas, said method comprising the steps of:
- constructing said housing of one of injection molded plastic material and cast plastic material;
- providing said housing in the open state free from closed profiles;
- inserting said gas bag into said housing in said folded position;
- closing said housing, said flow channel being likewise closed by the closing action;
- and
- connecting said side pieces, said side pieces lying opposite each other by said closing action, said side pieces being connected to each other in such a way that they are kept to a constant distance.
Dependencies are inferred from the claim text.