Abstract: An airbag device comprises a mounting plate and a retaining member, the mounting plate includes a housing portion which houses therein a part of an inflator, the retaining member includes a fixing portion fixed to the mounting plate at a location that is radially outward relative to the side surface of the inflator, a leg portion which has a first end portion provided continuously with the fixing portion, and extends from the first end portion toward the top surface of the inflator in the center axis direction, and an arm portion extending radially inward relative to the side surface from the second end portion of the leg portion, and the retaining member is in contact with a part of the inflator and is elastically deformed to retain the inflator in the housing portion, in a state in which the fixing portion is fixed to the mounting plate.

Abstract: An airbag of an airbag device for a driver seat has a front panel and a back panel. In the airbag having undergone spontaneous inflation, when a size between a securing position of the airbag to a retainer member and the most protruding portion of the airbag with respect to the securing position is set as 1, the most protruding portion by the back panel is located at a position spaced from the securing position by 0.5 or greater, a diameter of the inflated airbag of an opposing portion to an inner surface of the wheel is 0.6 to 1.2 times as large as an inner diameter of the wheel, and a diameter of the inflated airbag of a joint portion of the front panel and the back panel is greater than the diameter of the inflated airbag of the opposing portion to the inner surface of the wheel.

Abstract: An airbag device comprises a mounting plate and a retaining member, the mounting plate includes a housing portion which houses therein a part of an inflator, the retaining member includes a fixing portion fixed to the mounting plate at a location that is radially outward relative to the side surface of the inflator, a leg portion which has a first end portion provided continuously with the fixing portion, and extends from the first end portion toward the top surface of the inflator in the center axis direction, and an arm portion extending radially inward relative to the side surface from the second end portion of the leg portion, and the retaining member is in contact with a part of the inflator and is elastically deformed to retain the inflator in the housing portion, in a state in which the fixing portion is fixed to the mounting plate.

Abstract: An airbag of an airbag device for a driver seat has a front panel and a back panel. In the airbag having undergone spontaneous inflation, when a size between a securing position of the airbag to a retainer member and the most protruding portion of the airbag with respect to the securing position is set as 1, the most protruding portion by the back panel is located at a position spaced from the securing position by 0.5 or greater, a diameter of the inflated airbag of an opposing portion to an inner surface of the wheel is 0.6 to 1.2 times as large as an inner diameter of the wheel, and a diameter of the inflated airbag of a joint portion of the front panel and the back panel is greater than the diameter of the inflated airbag of the opposing portion to the inner surface of the wheel.

Abstract: The volume of a passenger airbag device is reduced, and the behavior thereof when inflated and deployed is stabilized. A passenger airbag device (1) installed in a top surface of an instrument panel (20) has, on an instrument panel side (back surface side) of an inflated and deployed cushion (10), a projecting portion (10b) that serves as support means when an occupant moves forward therein, and recesses (10c and 10d) provided adjacent to the projecting portion (10b). The volume of the cushion (10) is reduced by providing the recesses (10c and 10d), and the behavior of the airbag device in an inflated and deployed state is stabilized by the projecting portion (10b).

Abstract: In an airbag inflatable inside a seating portion of a vehicle's seat, the design flexibility, in terms of shape and height, of the airbag in an inflated state is increased. An airbag device (1) includes an airbag (10) and an inflator (2). The airbag (10) is disposed inside a seating portion of a seat and is inflated under a seated occupant. The inflator (2) generates gas to inflate and deploy the airbag (10). The airbag (10) includes an upper base fabric piece (11), a lower base fabric piece (12), and a pair of side base fabric pieces (13), which are joined to one another and form an air chamber (14) therein. The pair of side base fabric pieces (13) are disposed at part of side portions between the upper base fabric piece (11) and the lower base fabric piece (12) and define the shape of the air chamber (14) in an inflated state.

Abstract: An airbag device configured to be disposed in an instrument panel includes an inflator configured to generate gas, and an airbag that includes a gas inlet through which the gas from the inflator is introduced and is inflated and deployed in a bag shape toward a vehicle room side by the gas introduced from the inflator through the gas inlet. The airbag has, in an upper portion thereof, an extra length in a front and rear direction of a vehicle and is folded in a housed state after experiencing a folded state in an approximately planar fashion such that the extra length portion is tucked into the airbag toward the rear of the vehicle.

Abstract: An air bagged vehicle seat is reduced in weight while the strength thereof is maintained. The vehicle seat is provided with an airbag device which is disposed inside the sitting portion of the vehicle seat and is inflated under the seated occupant. The vehicle seat is provided with a seat pan (50), a first support pipe (40) , and seat rails (10) fixed to the floor. The seat pan (50) is provided with a recess for housing the airbag, and a protruding bent section (50A) extending in the left-right direction of the vehicle. The first support pipe (40) is disposed on the rear side of the protruding bent section (50A) so as to extend therealong. The first support pipe (40) is configured in such a manner that the first support pipe (40) is bent in a forward and downward direction of the vehicle and the leg sections (42) of the first support pipe (40) are fastened to the seat rails.

Abstract: The volume of a passenger airbag device is reduced, and the behavior thereof when inflated and deployed is stabilized. A passenger airbag device (1) installed in a top surface of an instrument panel (20) has, on an instrument panel side (back surface side) of an inflated and deployed cushion (10), a projecting portion (10b) that serves as support means when an occupant moves forward therein, and recesses (10c and 10d) provided adjacent to the projecting portion (10b). The volume of the cushion (10) is reduced by providing the recesses (10c and 10d), and the behavior of the airbag device in an inflated and deployed state is stabilized by the projecting portion (10b).

Abstract: A cushion of a passenger airbag device that is reduced in volume and shows a stable behavior when inflated and deployed is achieved. The present invention is a method of producing a cushion (10) of a passenger airbag device (1) having a portion with a desired curvature by sewing side edges of base fabric pieces constituting a main panel (12) and left and right side panels (14) together. The main panel (12) and the side panels (14) are sewn together so as to form a rectangular opening, whose short sides have a length equal to the width of the side panels (14) and whose long sides have a length equal to the width of the main panel (12), at a position where stitches in the main panel (12) and side panels (14) start or end. Then, the portion with a desired curvature is formed by folding the short sides toward the opening and sewing the short sides and the long sides together.

Abstract: In an airbag inflatable inside a seating portion of a vehicle's seat, the design flexibility, in terms of shape and height, of the airbag in an inflated state is increased. An airbag device (1) includes an airbag (10) and an inflator (2). The airbag (10) is disposed inside a seating portion of a seat and is inflated under a seated occupant. The inflator (2) generates gas to inflate and deploy the airbag (10). The airbag (10) includes an upper base fabric piece (11), a lower base fabric piece (12), and a pair of side base fabric pieces (13), which are joined to one another and form an air chamber (14) therein. The pair of side base fabric pieces (13) are disposed at part of side portions between the upper base fabric piece (11) and the lower base fabric piece (12) and define the shape of the air chamber (14) in an inflated state.

Abstract: An air-bag device capable of improving degree of freedom in setting of reaction forces according to physical frames of occupants, a vehicle occupant's lower limb protecting device and a device for protecting an occupant at the time of vehicle side collision using the air-bag device. Knees of an occupant of large build whose inertia load at the time of collision is great are assuredly protected by collective energy absorbing action of the upper cylinders (121, 121) and the lower cylinders (122, 122) at the time of collision. In a case of an occupant of small build whose inertia load at the time of collision is small, loads from the upper cylinders (121, 121) and the lower cylinders (122, 122) are exerted on the occupant in appropriate proportions according to physical size of the occupant to fulfill impact absorption at the time of collision.

Abstract: An airbag device configured to be disposed in an instrument panel includes an inflator configured to generate gas, and an airbag that includes a gas inlet through which the gas from the inflator is introduced and is inflated and deployed in a bag shape toward a vehicle room side by the gas introduced from the inflator through the gas inlet. The airbag has, in an upper portion thereof, an extra length in a front and rear direction of a vehicle and is folded in a housed state after experiencing a folded state in an approximately planar fashion such that the extra length portion is tucked into the airbag toward the rear of the vehicle.

Abstract: To enhance an occupant restraining force of an airbag, and to improve a protective function for an occupant of an airbag device by discharging gas without fail regardless of a position of the occupant, an airbag (10) is divided into a first chamber (10A) on an inflator (2) side and a second chamber (10B) on an occupant side by a partition wall (11), and the first chamber (10A) includes an opening (23) to which a discharge-state switching member (30) having vent holes to discharge the gas in the airbag (10) and being switchable between the discharge/non-discharge states is attached. The discharge-state switching member (30) is coupled to the partition wall (11) by a tether belt (40), so that the tether belt (40) applies tension to close the vent holes when the airbag (10) inflates, and when the airbag (10) receives an occupant, releases the tension depending on the position of the receipt, and opens the vent holes.

Abstract: An air bag cover or air bag device that secures the escape path of an air bag in an upper part of a steering wheel. Developing lines are formed in an air bag cover. When the air bag is inflated and developed, the air bag cover is divided into an upper open portion, left open portion, right open portion, and lower open portion so as to be opened. A decorative part is formed on the left open portion, and the upper open portion is difficult to be caught on a wheel part of the steering wheel.

Abstract: An air-bag device capable of improving degree of freedom in setting of reaction forces according to physical frames of occupants, a vehicle occupant's lower limb protecting device and a device for protecting an occupant at the time of vehicle side collision using the air-bag device. Knees of an occupant of large build whose inertia load at the time of collision is great are assuredly protected by collective energy absorbing action of the upper cylinders (121, 121) and the lower cylinders (122, 122) at the time of collision. In a case of an occupant of small build whose inertia load at the time of collision is small, loads from the upper cylinders (121, 121) and the lower cylinders (122, 122) are exerted on the occupant in appropriate proportions according to physical size of the occupant to fulfill impact absorption at the time of collision.

Abstract: An air bag cover or air bag device that secures the escape path of an air bag in an upper part of a steering wheel. Developing lines are formed in an air bag cover. When the air bag is inflated and developed, the air bag cover is divided into an upper open portion, left open portion, right open portion, and lower open portion so as to be opened. A decorative part is formed on the left open portion, and the upper open portion is difficult to be caught on a wheel part of the steering wheel.

Abstract: To enhance an occupant restraining force of an airbag, and to improve a protective function for an occupant of an airbag device by discharging gas without fail regardless of a position of the occupant. An airbag (10) is divided into a first chamber (10A) on an inflator (2) side and a second chamber (10B) on an occupant side by a partition wall (11), and the first chamber (10A) includes an opening (23) to which a discharge-state switching member (30) having vent holes to discharge the gas in the airbag (10) and being switchable between the discharge/non-discharge states is attached. The discharge-state switching member (30) is coupled to the partition wall (11) by a tether belt (40), so that the tether belt (40) applies tension to close the vent holes when the airbag (10) inflates, and when the airbag (10) receives an occupant, releases the tension depending on the position of the receipt, and opens the vent holes.