Takata Corporation

Weixin Gu

Kazuhiro Abe

Tadahiro Igawa

Katsushi Yoshii

A head-protecting airbag and a head-protecting airbag device that exhibit a gentle change in internal pressure of chambers and facilitate the adjustment of the internal pressure of a primary chamber. In the event of a side impact or rollover of a vehicle, a gas generator is activated to supply gas into a primary chamber cell group between an air-permeable panel and a first panel of an airbag, which is thus inflated. The airbag expands downward like a curtain and inflates between vehicle occupants and an in-vehicle lateral surface. If the cushion cells, upon receiving the head of an occupant, exhibit an internal pressure higher than a predetermined value, gas flows into a secondary chamber through the air-permeable panel.

Head-protecting airbag and head-protecting airbag device

An airbag apparatus including a vent hole that is reliably opened when the pressure of an airbag has reached a predetermined level. An apparatus includes inner and outer bags placed in a retainer in folded conditions and the retainer is closed by a module cover. The retainer has a vent hole. The vent hole is closed by a lid or sheet type closing structure. The module cover is pushed open by the inflation pressure of the inner bag. The gas in the inner bag is discharged into the outer bag to inflate the outer bag. When the inner pressure of the outer bag has reached a predetermined level, the closing structure opens to open the vent hole.

Airbag apparatus

An airbag is formed by an outer panel member for constituting the bag having a front side and a rear side with an opening for receiving gas to be inflated. The airbag includes at least three compartments arranged inside the bag including a first compartment communicating with the opening, a second compartment situated adjacent to the first compartment, and a third compartment situated adjacent to the second compartment. The gas flows from the first compartment to the third compartment through the second compartment.

Airbag

An airbag is partitioned into the first chamber disposed at a center thereof, the second chamber surrounding the first chamber, and a gas-receiving chamber by means of an inner panel and a partition panel. The first chamber is located inside the inner panel above the partition chamber. The gas-receiving chamber is located inside the inner panel between the partition chamber and an inflator. When the inflator is actuated, gas from the inflator first flows into the gas-receiving chamber, and from this gas-receiving room, it flows into the first and second chambers substantially through communication ports, thereby inflating the first and second chambers substantially at the same time.

Growing community of inventors

Shiga, Japan

Weixin Gu