The present invention relates to a seat airbag apparatus for a vehicle, in which a raw cushion fabric 210 provided in the form of a single flat panel is coupled by sewing to an inner cushion part 110 provided in the form of a flat panel, and a front cushion 200 is formed by using the raw cushion fabric 210 provided in the form of a flat panel. Therefore, the sewing coupling may be easily and smoothly performed, and particularly the tolerance in respect to the sewing coupling may be reduced, thereby improving quality.

An airbag assembly including an airbag body having a front side and an opposite rear side, a fold line provided on one of the front side and the rear side, the fold line configured to adjust a length of the one of the front side and the rear side such that a length of the rear side is greater than a length of the front side when the airbag body is in a deployed state, the fold line defining a lower boundary, and a sewn portion provided on an outer surface portion of the front side and an outer surface portion of the rear side. The sewn portion fixes an inner surface portion of the front side to an inner surface portion of the rear side at a location within a predetermined distance from the lower boundary.

An airbag for a passenger seat is folded and stored in a storage so as to be deployed towards the passenger seat in such a manner as to enlarge towards the left and right when exiting the storage. The airbag includes a bag body that includes a mount-side portion to be mounted on the storage, and a cover panel that is made of a flexible sheet-shaped material and covers an outer circumference of the mount-side portion of the bag body. The cover panel is configured to cover an edge of a peripheral member of the storage at least in left and right sides of the storage at airbag deployment. The cover panel is joined to the bag body in such a manner that its edge portion is capable of slipping relative to the bag body at least in the left and right portions.

A seat cushion airbag apparatus includes a support portion, an airbag, and a fastening portion. The support portion is arranged below the cushion portion of a conveyance seat. The airbag is arranged between the cushion portion and the support portion and at the center portion in the width direction of the conveyance seat. The fastening portion fastens the airbag to the support portion and is disposed in the lower portion of the airbag in the inflated state at a position rearward of the center in the front-rear direction.

An airbag device includes a steering wheel a rim portion of which has a longer length in a left and right direction than in a front and back direction, and an airbag mounted on a boss section of the steering wheel. An outer shell of the airbag includes a vehicle-side wall that is configured to be supported by an upper surface of the rim portion when deployed, and a driver-side wall a central region of which is configured to deploy generally vertically for receiving the driver. The airbag as deployed includes, in a rear portion of the vehicle-side wall, a locking inflatable portion that protrudes downward from a vicinity of the upper surface of the rim portion of the steering wheel to be locked by a rear surface of the rim portion and prevent a front portion of the airbag from slipping forward.

A vehicle airbag includes a main panel to form a main chamber deployed toward an inner part of a vehicle, and a protrusion panel provided outside the main panel to form at least one protrusion chamber that communicates with the main chamber and protrudes toward the inner part of the vehicle based on the main chamber. The protrusion panel is folded to have a wrinkle part when the vehicle airbag is not inflated.

A curtain airbag attached to a vehicle body and expanded and deployed by a gas from an inflator containing: a first region along a lower edge; a second region adjacent above the first region with a first fold line; a third region adjacent above the second region with a second fold line formed on an opposite side of the first fold line across the second region. The first region is in a condition folded back at the first fold line to face a first surface side of the second region, the second region is in a condition folded back at the second fold line such that the folded back first region is between the second region and the third region, the third region is in a condition rolled upward on a second surface side. Rolling starts from the second fold line.

A head-protecting airbag device includes: an airbag body; and a connecting piece which is formed of a sheet material with flexibility, wherein: the airbag body and the connecting piece constitute an airbag having a bag shape inflatable to cover an inboard side of a window of a vehicle; the airbag body includes an inboard side wall disposed on the inboard side at the time of inflation completion, an outboard side wall disposed on an outboard side, and a coupling target portion coupling the connecting piece; the coupling target portion is configured to be divided into an inboard side portion and an outboard side portion; and the root end of the connecting piece is nipped between the inboard side portion and the outboard side portion, and is coupled with the inboard side portion and the outboard side portion so as to be connected with the airbag body.

An airbag of an airbag device for a driver's seat includes an exhaust strap which includes a cover section that closes off an outer opening of a vent hole at airbag deployment and connecting bands extending from opposite sides of the cover section and joined to the center of a driver-side wall. When the driver-side wall of the airbag cushions the driver at airbag deployment and moves toward a vehicle-side wall, the connecting bands of the exhaust strap loosen and allow a distant edge region of the cover section to loosen and pass through the outer opening such that the outer opening and an inner opening communicate to open the vent hole. The cover section includes a reinforcing element that prevents the distant edge from slipping towards a proximate edge while allowing a bending deformation of the distant edge to pass through the outer opening and open the vent hole.

In a method for folding a side airbag a first material layer and a second material layer are connected along a first edge portion by a first seam and connected along second edge portions by a second seam perpendicular to the first seam to bound a chamber. The two material layers are placed flat upon one another and a region of the second seam is slipped in a first direction inwards while forming a tip. A tip-distal end of the first and second material layers is folded several times in the first direction and the tip is folded, with the folded-over portion being slipped in the first direction inwardly. A gas generator is inserted in the first direction into the two material layers; and roll folding is carried out from an end in opposition to the gas generator in a second direction in transverse relation to the first direction.