Nihon Plast Co., Ltd.

Hiroyuki Iwamoto

Masato Suzuki

Hideaki Saito

Yohei Kiuchi

Takashi Ueda

Tomotaka Ishikawa

Hideki Mochizuki

Mitsuhiro Yoshida

Takahiro Yamauchi

An airbag includes a vent hole discharging gas, a slide tether performing transition of a state of the vent hole, from an open state via a close state to the open state, by changing between a slackened state and an extended state, and a slide tether cover guiding the slide tether. The other end portion in a longitudinal direction of the slide tether body portion constitutes a first supporting point by being fastened in a direction going from the vent hole toward a mounting position of the inflator, bifurcated portions constitutes a second supporting point by the other end portion of the slide tether cover being fastened, terminal end portions of leg piece portions constitute a third supporting point by being respectively fastened. When the airbag is deployed, transition of a state of the vent hole is performed.

Airbag device

The present invention provides an airbag device that is capable of restraining a rectification cloth that switches a vent hole to an opened or closed state so as not to be twisted, and that is capable of switching the vent hole from an opened state to a closed state, and further, switching to the opened state. At an initial stage at which an airbag main body inflates and expands, the vent holeis arranged between the leg portions, and when the airbag main body is in a predetermined internal pressure state, the vent hole is closed by means of the band-shaped portion. If an occupant or the like comes into contact with the airbag main body, a tense state of each of the leg portions is released, the rectification cloth is established in a slackened state, and the vent holeis established in an opened state.

An airbag, which is folded and assembled elongatedly, is deployed along a side window. The airbag has a folded portion and a pleated portion which wraps the folded portion under the assembled condition. The airbag also has an inner tube which is provided from the inside of an infusion portion to the inside of an upstream portion of an inflating portion. The inner tube prevents that the airbag is damaged by heat of inflation gas. When the airbag is assembled, the inner tube is positioned along a first fabric, which is developed so that the surface of the first fabric faces an inside of a vehicle compartment, by the infused fluid. Deployment performance of the airbag (curtain airbag deploying along a side window of an automobile) is improved.

Airbag, airbag apparatus, and method for folding airbag

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Shizuoka, Japan

Hiroyuki Iwamoto