Toyoda Gosei Co., Ltd.

Norihisa Taya

Eiji Sato

Takashi Iida

Masao Kino

Takashi Shigemura

Norio Mizuno

Yu Kimura

Yoshiki Kaneko

Takayoshi Mizuno

An airbag includes a bag body that includes a first panel and a second panel which are opposed to each other, a partitioning tether that is disposed in such a manner as to partition an interior of the bag body, a communication hole that is formed in the tether for providing gas communication in the interior of the bag body, and first and second joints that respectively join first and second edges of the tether to the first and second panels of the bag body. The communication hole has a generally rectangular contour which has two corners in a vicinity of each of the first and second edges of the tether. In both of the first and second edges of the tether, the corners of the communication hole are disposed closer to the first or second edge of the partitioning tether than a corresponding one of the joints.

Airbag

A vehicle airbag device includes: an airbag; a gas generator which supplies an inflation gas to the airbag; and a wrapping material, which covers a periphery of an airbag assembly including the airbag and the gas generator. The wrapping material includes: a combining part which is formed of a sheet material and combines both edges, which are overlapped with each other in a length direction; an engagement part which is formed in parallel with the combining part in a width direction of the sheet material and is engaged in the gas generator; and a notch portion formed between the combining part of both edges and the engagement part, wherein a position of a deepest part of the notch portion in the length direction of the sheet material is less than or equal to a depth of the combining part.

Vehicle airbag device and wrapping material used in vehicle airbag device

A lateral partition divides the interior of an airbag main body into an upper inflation chamber including a first section and a lower inflation chamber including a second section. The upper inflation chamber is located above the second section of the lower inflation chamber. An upper restricting portion is provided in a bridging manner in the first section. The upper restricting portion has a front-rear length that is shorter than a circumferential length in a front-rear direction of the first section. The upper restricting portion is tensioned in the front-rear direction when the upper inflation chamber is inflated. The upper restricting portion restricts an inflated dimension in the front-rear direction of the upper inflation chamber such that an inflated dimension of the first section in a lateral direction of the automobile is greater than an inflated dimension of the lower inflation chamber in the lateral direction.

Side airbag apparatus

An airbag apparatus has an airbag formed by sewing fabric portions together at peripheries thereof. A periphery sewn portion of the airbag has two terminals separated from each other. The terminals are formed by leaving sections of the peripheries of the fabric portions unsewn. A surrounding sewn portion is formed about each terminal of the periphery sewn portion. The airbag has a vent hole between the terminals. The opening of the vent hole is defined by vent hole defining sections, each of which is in one of the surrounding sewn portions. Position determining portions are provided in the margin of the airbag. Each surrounding sewn portion is formed in place with reference to the corresponding position determining portion. Each position determining portion is located father from the vent hole in the circumferential direction of the margin than the vent hole defining section of the corresponding surrounding sewn portion.

Airbag apparatus

An airbag apparatus having an airbag, which is formed into a bag shape by sewing a base fabric, is disclosed. The airbag includes a seam having a first seam section and a second seam section, which is formed after the first seam section is formed. The second seam section has an extremity and an overlapped portion, which is a section between the extremity and an intersected portion. The first seam section has an end part, which includes an overlapping portion. The overlapping portion is located at a position inside of the overlapped portion of the second seam section and extends along the overlapped portion. The overlapping portion includes an intersecting portion, which intersects the intersected portion of the second seam section. The end part of the first seam section further includes an extension, which extends from the intersecting portion to a position that is outside of the second seam section.

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Kiyosu, Japan

Norihisa Taya