Abstract: The present invention provides a gas generator for an air bag including; a housing having a gas discharge port, a first combustion chamber and a second combustion chamber, provided inside the housing and charged with a gas generating agent, a first ignition device and a second ignition device provided in the two combustion chambers, respectively, the second ignition device provided with an electric igniter, a piston, an enhancer agent, a detonator provided in the enhancer agent, opposite to the distal end of the piston, and a tether connected to the rear end portion of the piston, the opposite end of the tether being tied around an air bag when accommodated into an air bag module, the tether controlling an inflation direction of the air bag by fastening the inflating air bag when the first ignition device is activated, the tether being pulled and cut by movement of the piston when the second ignition device is activated.

Abstract: The present invention provides an air bag module comprising; a module case accommodating a gas generator and an airbag, the gas generator having a housing, which is a assembly of a first base plate and a second base plate provided with a plurality of gas discharge ports, and at least one combustion chamber accommodated inside the housing, the module case being attached to a connection section of the first base plate and the second base plate at an opening portion of the module case.

Abstract: The present invention relates to a gas generator for an air bag, comprising, in a housing having a gas discharge port, a combustion chamber, and the combustion chamber accommodating a gas generating agent that generates gas by combustion and an ignition device for igniting and combusting the gas generating agent, the ignition device being formed by integrating an electric igniter and a substantially cylindrical igniter collar with a resin in a state where the electric igniter is disposed inside the igniter collar, the ignition device being in contact with the bottom surface of the housing in at least part of the surface of the igniter collar and being attached on the housing bottom surface by at least one from the following attachment structures (1) to (3): (1) The igniter collar is fixed by a support member having a flat section and a tubular section extending upward from the flat section, the flat section is fixed to the housing bottom surface, and the upper end surface of the igniter collar is pressed and

Abstract: The present invention relates to a gas generator for an air bag including a single cylindrical housing charged with a pressurized gas and at least one ignition device mounted to the cylindrical housing, the cylindrical housing having a reduced diameter portion formed by an annular convex portion protruding inward, the reduced diameter portion having a single first gas discharge port sealed by a rupturable plate, the reduced diameter-portion, which has the first gas discharge port, being surrounded by a cylindrical diffuser portion having a plurality of second gas discharge ports, and an outer diameter including the part surrounded by the diffuser portion approximates an outer diameter of the cylindrical housing.

Abstract: The present invention relates to a gas generator for an air bag comprising a housing having a gas discharge port, a first combustion chamber and a second combustion chamber, each of the combustion chambers being provided with a gas generating agent and an ignition device, being in the housing, the second combustion chamber being separated from the first combustion chamber by a cup member disposed within the housing, the second gas generating agent and the second ignition device being disposed within the cup member, the cup member being moved upon activation of the second ignition device, thereby forming a discharge passage for a gas generated in the second combustion chamber.

Abstract: The present invention provides a multi-stage gas generator for an air bag, comprising a plurality of gas generators each having an inside housing provided with an inside gas discharge port as an outer shell container, a filter disposed on the exterior of the plurality of gas generators and an outside housing of a desired shape surrounding the plurality of gas generators and the filter and being provided with an outside gas discharge port, the pressure resistance of the inside housing being greater than the pressure resistance of the outside housing, gas discharged through the inside gas discharge port of the inside housing upon activation of the multi-stage gas generator, passing through the filter, then being discharged through the outside gas discharge port of the outside housing to inflate the air bag.

Abstract: The present invention provides a small, high-output gas generator for an air bag. A filter 30 is disposed between a first gas generator 11 and a second gas generator 21. Gas discharged from the first gas generator 11 and gas discharged from the second gas generator 21 pass through the same filter 30, and are then discharged from a second gas discharge port 36 to inflate the air bag.

Abstract: A gas generator for an air bag capable of easily and unfailingly closing a gas discharging port formed in a housing. An amount of accommodated gas generating agent can be varied and the gas generating agent can be ignited and burnt unfailingly even by ignition devices having normal output. The gas generator has sealing structures as small as possible and a simple structure, and can be manufactured easily. Activation performance and activation timing can be adjusted at multiple stages. For instance, the air bag housing may be provided at its peripheral wall with a plurality of gas discharging ports, an ignition device to be actuated upon impact, and a gas generating agent to be ignited and burnt by the ignition device, wherein the gas discharging ports are arranged in the axial direction of the housing to form a gas discharging port line. Other configurations are also disclosed.

Abstract: The present invention provides a gas generator for an air bag that can be reduced in size and thickness. A gas outlet is formed in the axial direction of the gas generator in a diffuser which is attached to an open end portion of a bottle portion storing a pressurized medium. The gas outlet is closed by a rupturable plate, and an igniter collar attached with an igniter for rupturing the rupturable plate is attached to the diffuser. A first gas discharge hole that opens in the axial direction of a housing is also formed in the igniter collar, and hence no member protrudes in the width direction of the gas generator, enabling the entire gas generator to be reduced in size and thickness.

Abstract: The present invention provides a small gas generator which is capable of preventing a cup-like member or fragments thereof from being scattered, even when gas is discharged in the radial direction of the gas generator. The gas generator comprises a cup-like member having a cylindrical form with a bottom, which is integrated with an igniter assembly at a joining portion. The thickness of the joining portion is greater than the thickness of a side wall portion of the cup-like member.

Abstract: The present invention provides a gas generator capable of easily and unfailingly closing a gas discharging port formed in a housing. The invention provides a gas generator for an air bag in which an amount of accommodated gas generating agent can be varied and the gas generating agent can be ignited and burnt unfailingly even by the ignition means having normal output. The invention provides a gas generator which has sealing structures as little as possible and in addition to a simple structure and can be manufactured easily, and in that a activation performance and activation timing can be adjusted at a multiple stage.

Abstract: An inflator for an air bag has, in a housing having a gas discharging port, a combustion chamber accommodating a molded article of a gas generating composition which is burnt to generate gas and ignition means to ignite the molded article of a gas generating composition. The molded article contains a metal component and meets the requirement: (A) the (theoretical) combustion flame temperature of the molded article of the gas generating composition is 2000° C. or less, and part or the whole of the metal or metal oxide after combustion of the molded article of the gas generating composition has a melting point not lower than the combustion flame temperature; and (B) bulk combustion residues remain in the combustion chamber at the time of combustion of the molded article of the gas generating composition.

Abstract: A gas generator for an air bag capable of easily and unfailingly closing a gas discharging port formed in a housing. An amount of accommodated gas generating agent can be varied and the gas generating agent can be ignited and burnt unfailingly even by the ignition means having normal output. The gas generator has sealing structures as small as possible and a simple structure and can be manufactured easily. Activation performance and activation timing can be adjusted at a multiple stage. For instance, the air bag housing may be provided at its peripheral wall with a plurality of gas discharging ports, an ignition means to be actuated upon impact, and a gas generating means to be ignited and burnt by the ignition means, wherein the gas discharging ports are arranged in the axial direction of the housing to form a gas discharging port line. Other configurations are also disclosed.

Abstract: The present invention provides a hybrid inflator capable of adjusting an amount of a pressurized medium and a material of a gas generating agent to meet the requirements. An outer shell of a first gas generating chamber 130 is formed by an inflator housing 101 and a second gas generating chamber housing 146, and an outer shell of a second gas generating chamber 140 is formed by the second gas generating chamber housing 146. For this reason, even when the requirement for downsizing and reducing weight is met, an amount of a gas generating agent does not have to be reduced.

Abstract: The present invention provides an air bag apparatus in which an amount of a gas flowing into an air bag can be adjusted in a stepless manner.

Abstract: The invention provides an initiator assembly that can be easily manufactured without increasing cost, and can be easily and securely connected to a connector when it is used. The initiator assembly includes a priming for being used in a motor vehicle, an initiator used for igniting the priming and having at least one conductive pin and a metal collar for fixing the initiator assembly on an inflator that are integrally formed by an insulating material injection-molded therebetween. The insulating material is a resin made of a plastic material that surrounds a metal eyelet of the initiator.

Abstract: The present invention provides a gas generator in which ignition and combustion performance of a gas generating agent and operation performance are enhanced. An inner cylindrical member 4 is disposed in a cylindrical housing 3, an annular first combustion chamber 5a is provided radially in the outside of the inner cylindrical member 4, and, in the combustion chamber 5a, a ratio (D/L) of its radial average distance (D) to its axial average length (L) is adjusted to be in the range of 0.2 to 2.0. The invention provides a gas generator for an air bag capable of reducing a size of the gas generator and easily and reliably adjusting a capacity of a combustion chamber which accommodates the gas generating agent, and also provides a retainer for such a gas generator.

Abstract: The present invention provides an inflator capable of realizing downsizing and weight reduction.

Abstract: The present invention provides a hybrid inflator capable of adjusting an amount of a pressurized medium and a material of a gas generating agent to meet the requirements.

Abstract: The present invention provides a gas generator capable of easily and unfailingly closing a gas discharging port formed in a housing. The invention provides a gas generator for an air bag in which an amount of accommodated gas generating agent can be varied and the gas generating agent can be ignited and burnt unfailingly even by the ignition means having normal output. The invention provides a gas generator which has sealing structures as little as possible and in addition to a simple structure and can be manufactured easily, and in that a activation performance and activation timing can be adjusted at a multiple stage.