The invention relates, among other things, to a gas generator for generating a driving gas for a vehicle safety device, wherein the gas generator comprises: an ignition device; fuel which, after ignition using the ignition device, generates the driving gas; an at least partially tubular carrier element, in the tube interior of which a combustion chamber for the fuel is located; an injection-moulded body which fixes the ignition device in the connection hole and is located with an inner portion inside the carrier element and with an outer portion outside the carrier element; a feed pipe which is connected to a pipe end of the carrier element and which conveys the driving gas out of the combustion chamber; and a lid sealing the combustion chamber.

The present invention relates to a gas generator pipe of an airbag module, the gas generator pipe consisting of a steel alloy with a martensitic matrix. The gas generator pipe is characterized in that the gas generator pipe has a tensile strength, Rm, of at least 1,100 MPa, and the steel alloy has the following alloying elements apart from iron and melt-related impurities in mass percent (Ma %): C 0.05-0.18% Si 0.4-2.6% Mn 0.2-1.4 % Cr 2.0-4.0% Mo 0.05-1.0% N <0.015% and
at least one of the alloying elements Nb, V, Al and Ti in total at least 0.01%,
the gas generator pipe has been subjected to a quenching and partitioning heat treatment and
the gas generator pipe has a microstructure of martensite and austenite and the amount of austenite in the microstructure is at least 5%.

Furthermore, the invention relates to a method of manufacturing such a gas generator pipe.

A side airbag apparatus may include: a seat on which a passenger is seated; an inflator mounted on the seat, and configured to jet gas; a cushion inflated by the gas jetted from the inflator, and deployed toward the passenger so as to move the passenger to an inboard side of the vehicle; and a controller configured to operate the inflator to deploy the cushion before the collision of the vehicle, according to driving information of the vehicle, based on a signal of a sensor mounted on the vehicle.

An airbag device includes an airbag, an inflator and an attachment base. The airbag includes a body portion, and an inflow port portion, into which the distal end side of the inflator is inserted. The attachment base includes a holding plate portion including a pressing portion and a support portion that are provided at positions displaced around an axial center of the inflator so as to surround a periphery of the inflow port portion into which the distal end side of the inflator is inserted. The pressing portion is plastically deformable so as to approach a side of the support portion by being crimped, and the distal end side of the inflator inserted between the pressing portion and the support portion and the inflow port portion are sandwiched between the crimped pressing portion and the support portion, and are held by the attachment base.

The invention describes an igniter support (22) for an igniter unit (20) of a gas generator (10), comprising a first holder element (30) made from a first material and a second holder element (32) made from a second material different from the first material. Both holder elements (30, 32) can be positively coupled to each other. Further, a subassembly (16), a gas generator (10) and a method for manufacturing a gas generator (10) are described.

The invention describes an igniter support (22) for an igniter unit (20) of a gas generator (10), comprising a first holder element (30) made from a first material and a second holder element (32) made from a second material different from the first material. The two holder elements (30, 32) can be positively coupled to each other, especially can be at least partially positively nested. Further, a subassembly (16), a gas generator (10) as well as a method for manufacturing a gas generator (10) are described.

According to an embodiment of the present invention, provided is a closing structure of a pressure-resistant container in which an opening of a metallic cylindrical container is closed by a metallic closing member, the closing member including a closing part, the closing part including a first surface, a second surface on an opposite side to the first surface in a thickness direction, and a circumferential surface part between the first surface and the second surface, and having a same shape as that of the opening and having a size enabling insertion thereof into the opening. The closing structure includes: the closing member that is inserted to be at an inside of the opening of the cylindrical container, with the second surface facing inside of the cylindrical container; an annular deformed part that is deformed, with a peripheral wall part on the opening of the cylindrical container abutting against the first surface of the closing part of the closing member and a first annular corner part at a boundary between the first surface and the circumferential surface part; and a welded part where a contact portion between the first annular corner part of the closing part of the closing member and the annular deformed part is welded from outside.

The present invention provides a sealing structure of a sealed container in which an opening of a metallic cylindrical container is closed with a metallic closing member, wherein a gap between an inner wall surface on an side of the opening of the metallic cylindrical container and an outer surface of the metallic closing member that radially faces the inner wall surface is sealed with a seal member having been melted and solidified.

This invention concerns a tubular element for a gas pressure vessel of an airbag module, in particular of a vehicle, wherein the tubular element (1) consists of high-strength steel, has a first and a second end (17, 18) and from the first end (17) to the second end (18) the tubular element (1) has an undeformed section (11), a transition section (12) and a tapering section (13) and on the tapering section (13) at least one radially outwardly extending collar (14) is formed, characterized in that the collar (14) is separated from the transition section (12) by a first length section (130) having an outer diameter (A1) smaller than the outer diameter (A2) of the collar (14) and the wall thickness of the collar (14) is greater than the wall thickness of the first length section (130). Furthermore, the invention concerns a gas pressure vessel and a process for manufacturing a tubular element according to the invention (1).

The invention relates, among other things, to a gas generator for generating a driving gas for a vehicle safety device, wherein the gas generator comprises: an ignition device; fuel which, after ignition using the ignition device, generates the driving gas; an at least partially tubular carrier element, in the tube interior of which a combustion chamber for the fuel is located; an injection-moulded body which fixes the ignition device in the connection hole and is located with an inner portion inside the carrier element and with an outer portion outside the carrier element; a feed pipe which is connected to a pipe end of the carrier element and which conveys the driving gas out of the combustion chamber; and a lid sealing the combustion chamber.