Abstract: Inflator with improved reliability wherein charge holder 37 that gives directivity to a detonation wave generated due to combustion of priming 36 is provided to igniter 26, thereby promoting rupture of plate 19. Diffuser portion 320 is connected in the opening portion side of housing 312, and gas discharging port 340 is connected to diffuser portion 320. Diffuser portion 520 is connected in the opening portion side of inflator housing 512, and gas discharging port 540 is connected to diffuser portion 520. Outflow directions of the pressurized media within each gas discharging port 340, 540 and each respective axial direction of inflator housings 312, 512 are coincident with each other at actuation.

Abstract: An opening portion 14 of an inflator housing 12 and a diffuser portion 20 are connected by welding, and an inflow portion 42 of a gas discharging port 40 is press-fitted in and connected to a first gas discharging hole 22 of the diffuser portion 20.

Abstract: An inflator for an air bag, which inflates the air bag by a pressurized medium, has a rupturable plate that seals a pressurized portion of an inflator prior to an activation of the inflator. The rupturable plate is attached to the inflator by fixing a peripheral edge portion thereof to the inflator, and has at least one of the following parameters: (a) a ratio of diameter/thickness is 14 to 50, (b) a tensile strength is 880 to 1100 N/mm2, and (c) elongation is 25% or more.

Abstract: The present invention is an inflator with an improved reliability wherein a charge holder 37 for giving directivity to an detonation wave generated due to combustion of a priming 36 is provided to an igniter 26, thereby promoting rupture of a rupturable plate 19. A cross-shaped notch is applied to a surface of the rupturable plate 19, and when the rupturable plate 19 receives a rupture pressure from the igniter 26, four portions of the rupturable plate lap so that the outflow of the pressurized medium can be secured and fragments cannot be made. An inflator housing 12 and a diffuser 20 are connected by screwing a male screw portion on an outer surface of the end portion in the inflator housing 12 into a female screw portion on an inner surface of the end portion in the diffuser portion 20. An existing gas cylinder can be used in this method. A diffuser portion 320 is connected in the opening portion side of a housing 312, and a gas discharging port 340 is connected to the diffuser portion 320.

Abstract: The present invention is an inflator with an improved reliability wherein a charge holder 37 for giving directivity to an detonation wave generated due to combustion of a priming 36 is provided to an igniter 26, thereby promoting rupture of a rupturable plate 19. A cross-shaped notch is applied to a surface of the rupturable plate 19, and when the rupturable plate 19 receives a rupture pressure from the igniter 26, four portions of the rupturable plate lap so that the outflow of the pressurized medium can be secured and fragments cannot be made. An inflator housing 12 and a diffuser 20 are connected by screwing a male screw portion on an outer surface of the end portion in the inflator housing 12 into a female screw portion on an inner surface of the end portion in the diffuser portion 20. An existing gas cylinder can be used in this method. A diffuser portion 320 is connected in the opening portion side of a housing 312, and a gas discharging port 340 is connected to the diffuser portion 320.

Abstract: The present invention provides an inflator capable of prolonging the duration of inflation of an air bag. Since an inflator housing 12 of an inflator 10 for a curtain air bag is charged with a pressurized medium comprising a mixed gas of He and Ar (He:Ar=3:7 to 7:3), the sound velocity of the pressurized medium is smaller than that of a pressurized medium comprising He only, and the viscosity of the former is higher than that of the latter, so that the duration of the inflation of an air bag can be prolonged.

Abstract: The present invention provides an inflator for an air bag which concentrates the discharging direction of a gas in one direction toward an air bag and does not allow jumping of the inflator even due to malfunction thereof before installation to a vehicle, and which further allows easy and reliable connection of the air bag and the inflator. An inflator for an air bag is constituted to include a gas discharge portion 20 provided with an annular portion with plural first gas discharge ports 22 formed therein, and a diffuser portion 40 removably mounted only in the vicinity of the first gas discharge ports, the diffuser member 40 is provided with a passage forming portion 50, and one or two or more second gas discharge ports 45 for discharging a gas of a passage 46 in the radial direction of an inflator housing are formed unevenly on one portion of the passage forming portion in the circumferential direction thereof.

Abstract: An inflator comprises a cylindrical inflator housing elongated in an axial direction and containing a gas generating material for inflating an air bag, and an activation assembly for generating an activation gas for activating the gas generating material. A cylindrical diffuser assembly is provided in an axial end of the inflator housing. The diffuser assembly has an end surface, and also has a plurality of outlet holes in a peripheral wall surface thereof. A through-hole is formed in the end surface of the diffuser assembly, and a stud bolt for fixing the inflator is inserted into the through-hole. The stud bolt is fixed by a flange portion provided on an end portion thereof.

Abstract: The present invention provides an inflator whose manufacturing process is facilitated.

Abstract: The present invention provides a ruptuable plate in which broken pieces are hardly produced.

Abstract: The present invention provides an inflator capable of prolonging the duration of inflation of an air bag.

Abstract: The present invention is an inflator with an improved reliability wherein a charge holder 37 for giving directivity to an detonation wave generated due to combustion of a priming 36 is provided to an igniter 26, thereby promoting rupture of a rupturable plate 19. A cross-shaped notch is applied to a surface of the rupturable plate 19, and when the rupturable plate 19 receives a rupture pressure from the igniter 26, four portions of the rupturable plate lap so that the outflow of the pressurized medium can be secured and fragments cannot be made. An inflator housing 12 and a diffuser 20 are connected by screwing a male screw portion on an outer surface of the end portion in the inflator housing 12 into a female screw portion on an inner surface of the end portion in the diffuser portion 20. An existing gas cylinder can be used in this method. A diffuser portion 320 is connected in the opening portion side of a housing 312, and a gas discharging port 340 is connected to the diffuser portion 320.

Abstract: A hybrid inflator having a structure permitting easy and reliable mounting to an airbag module, facilitating welding during manufacture, and improving in gas sealability and reduced in weight, is provided. The hybrid inflator is for use in an inflation type safety system for a motor vehicle equipped with an airbag, and includes an inflator housing, pressurized gas contained at least in the inflator housing, a gas generator housing connected to the inflator housing and provided with at least one gas generator outlet, a gas generating agent contained in the gas generator housing and ignited by an initiator, and an inflator operation assembly containing the initiator for operating the inflator. The inflator operation assembly comprises a boss welded to an end portion of the inflator housing to hermetically seal the housing, and the boss has an edge of flange shape to be mounted to an airbag module.

Abstract: A hybrid inflator, which has a structure permitting easy and reliable mounting to an airbag module, facilitates welding during manufacture, is improved in gas sealability and reduced in weight. The hybrid inflator is for use in an inflation type safety system for a motor vehicle equipped with an airbag, and includes an inflator housing, pressurized gas contained at least in the inflator housing, a gas generator housing connected to the inflator housing and provided with at least one gas generator outlet, a gas generating agent contained in the gas generator housing and ignited by an initiator, and an inflator operation assembly containing the initiator for operating the inflator. The inflator operation assembly comprises a boss welded to an end portion of the inflator housing to hermetically seal the housing, and the boss has an edge of flange shape to be mounted to an airbag module.