A device includes an airbag and an outer cover. The airbag is accommodated between a body and a rear seat of a vehicle. The outer cover covers a space defined between the body and the rear seat from the passenger compartment and is exposed to the passenger compartment. When an impact greater than a predetermined level is applied to the vehicle body, a thin portion of the outer cover is ruptured by the pressure from inflation of the airbag. This forms an opening in the outer cover. The airbag is then inflated into the passenger compartment from the opening of the outer cover. The end at the part of the outer cover corresponding to the opening and facing toward the rear seat is entirely formed by the end of the outer cover.

Side airbag device

An airbag of a side airbag apparatus includes an upstream inflation portion, which inflates by inflation gas, and deploys frontward at a side of a vehicle seat. An opening is provided at a wall portion of the upstream inflation portion. A pressure regulator valve closes before an occupant is restrained by the upstream inflation portion, thereby restricting the inflation gas in the upstream inflation portion from flowing through the opening. Upon the occupant restraint, the pressure regulator valve cancels the restriction in response to a change in a tensed state of the dividing portion by an external force applied due to the restraint. A tear seam that connects valve body portions of the pressure regulator valve delays the opening time of the pressure regulator valve upon the occupant restraint by the upstream inflation portion relative to the opening time set only by the pressure regulator valve.

Side airbag apparatus

In a knee protecting airbag device of the present invention, an airbag is folded and housed on the front side of the knees of a seated passenger. The airbag is protruded rearward of a vehicle from a protruding opening and expanded and inflated upward, when an inflating gas flows in. And, the airbag is arranged on the front side of the knees of the passenger between a member on the body side and the knees of the passenger thereby to protect the knees of the passenger. The protruding opening has a transverse width size set within a range of ⅛ to ⅔ of the transverse width size of the airbag having completed its expansion and inflation.

Knee protecting airbag device

A protective cushion or airbag for a vehicle occupant's head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushion comprises an occupant-side sheet and an body-side sheet which are superposed on each other and sewn together so as to form vacant chambers between the sheets. A cylindrical member is disposed between upper portions of the sheets. Gas supplied through a rear end of the cylindrical member is introduced into the chambers openings and a front end of the cylindrical member.

Protective cushion for vehicle occupant's head

A curtain airbag device that can be applied to a small-width pillar. The curtain airbag device is accommodated in a region extending from at least an A-pillar to an upper portion of a window frame, and includes an airbag that is deployed in a curtain form near a side window of a vehicle interior in order to protect an occupant; and a gas generator that supplies inflation gas to the airbag. The accommodated airbag is formed in a rod shape by being folded in a roll form. When the airbag is accommodated, the airbag is partially compressed toward the center of the airbag at a narrow portion where an installation area of the A-pillar is narrow, in order to partially decrease a diameter of the airbag.

Curtain airbag device

PROBLEM TO BE SOLVED: To provide an air bag device which surely protects the trunk and head part of an occupant in response to the relative displacement motion of the occupant and the side wall of a cabin, which is caused by impact applied at the time of side collision. SOLUTION: This air bag device incorporates an air bag module formed out of an inflator 21, and of an air bag bag-body 22, in the seat back part of a seat, and forces the air bag-bag-body 22 to be swelled out in a space between an occupant and the inner wall surface of an cabin. In this case, the inside of the air bag bag-body 22 is partitioned into a lower chamber 26 and an upper chamber 27, concurrently a communication part 28 communicating both the chambers with each other, is provided, the lower chamber 26 is made as a chamber to which gas directly flows in from the inflator 21, the upper chamber 27 is made as a chamber to which gas spouted out of the inflator 21 flows in from the communication part 28 through the lower chamber 26, and a check valve 29 is provided for the communication part 28, which prevents gas from flowing in the lower chamber 26 from the upper chamber 27. COPYRIGHT: (C)1998,JPO

Air bag device

PROBLEM TO BE SOLVED: To desirably regulate the expnsion condition of an air bag, and surely expand the air bag, eliminating any interference. SOLUTION: Gas spouting direction is controlled by connecting a bag 7 to an inflator 5 through a gas introducing portion 14 for restricting gas diffusion, wherein the bag 7 is comprised of a main body 9, a lower expanding portion 13, and an upper expanding portion 11 provided with a vent hole 16, so that the upper and lower expanding portion 11 and 13 are folded to make bellows within the main body. On expanding the air bag 7 by spouting gas from the inflator 5, at first, the expansion of the bag 7 is stared from the portion facing to an abdomen 8 where is more resistant to impact force than a breast 10 in the condition capable of absorbing the impact force, so that the expanding condition of the bag 7 is desirably controlled, resulting in the improvement in restricting an occupant 6. Further, vehicle body structure is provided not to interfere with the air bag when the upper and lower expanding portions 11 and 13 are expanded by inflating there from inside, so that the air bag 7 will be surely expanded.

Air bag against side collision

PROBLEM TO BE SOLVED: To accomplish sure inflation, adjustment to a proper internal pressure, cost reduction based on sharing use of a part, and reduction in man-hours for forming an internal pressure adjusting opening part in an air bag against side face collision. SOLUTION: In the air bag of side collision, which is provided with a bag 2 to be expanded between a vehicle side part and an occupant and a gas generator 3 jetting gas to the rear part in the bag 2, the bag 2 is provided with an internal pressure adjusting opening part 5, by which an internal pressure can be adjusted so that a pressure in the part opposed to the occupant chest part is lowered than a pressure in the part facing the occupant abdomen part, while the internal pressure adjusting opening part 5 is arranged in the bag part in the vicinity of the installation part for the gas generator 3 in the bag rear part.

Air bag of side collision

PROBLEM TO BE SOLVED: To keep a seat sitting feeling excellent even in the case of building an air bag in a seat by providing a supporting member with a guide part for guiding gas from a gas jet nozzle of an inflator in the expanding direction of the air bag. SOLUTION: An inflator 3 is formed in cylindrical shape long in the vertical direction of a front seat, and a gas jet nozzle 3a for spouting gas is formed at the lower end part. A supporting member is so formed that its length in the vertical direction of the front seat is almost equal to the length of the inflator 3, and a guide part 10 composed of an extended part 10a for guiding gas from the gas jet nozzle 3a in the expanding direction of an air bag 4, and a reflecting part 10b for reflecting gas is formed near the gas jet nozzle 3a of the inflator 3. A front seat sitting feeling can thereby be kept excellent even in the case of building the air bag 4 in the front seat.

Air bag module

PROBLEM TO BE SOLVED: To provide an occupant protecting device for a vehicle in which a strap is securely dragged out of a clearance between a pillar trim and a weather strip in developing an airbag with a simple structure. SOLUTION: The occupant protecting device for the vehicle is provided with an airbag main body inflated and developed in a cabin from above a vehicle side part, a trim member 14 for covering the pillar part 11 of the vehicle on an inner side of the cabin and forming the clearance to the inner side of the cabin with an edge part of the pillar part 11, the strap 3 arranged in a space closed by the pillar part 11 and the trim member 14 for linking the airbag main body and the pillar part 11, and a strap holding member 17 arranged in the space for holding the strap 3. The strap holding member 17 is arranged so that a direction the strap is separated directs to the clearance. COPYRIGHT: (C)2004,JPO

Shimoda Mikiji

Papers

Air bag device

Air bag against side collision

Air bag of side collision

Air bag module

Occupant protecting device for vehicle