| US 7,611,164 B2 | ||
| Airbag apparatus | ||
| Takeshi Kai, Saitama (Japan); Takashi Aoki, Saitama (Japan); Kazuhiro Onda, Saitama (Japan); Rei Sakamoto, Saitama (Japan); and Nobuko Hashikawa, Saitama (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Jan. 11, 2007, as Appl. No. 11/652,313. | ||
| Claims priority of application No. 2006-006728 (JP), filed on Jan. 13, 2006. | ||
| Prior Publication US 2007/0164546 A1, Jul. 19, 2007 | ||
| Int. Cl. B60R 21/233 (2006.01) | ||
| U.S. Cl. 280—729 [280/728.1; 280/730.1; 280/730.2; 280/736; 280/740; 280/742] | 10 Claims |
| 1. An airbag apparatus comprising:
an inflator for discharging gas; and
an airbag that is caused to expand by being filled with the gas, wherein:
an interior of the airbag is divided into a plurality of expanding chambers including first, second, and third expanding chambers;
the airbag has a plurality of flow channels formed therein for guiding gas to the expanding chambers, including a first flow
channel for guiding gas from the inflator to the first expanding chamber, a second flow channel for guiding gas from the inflator
to the second expanding chamber, a third flow channel for guiding gas from the second expanding chamber to the third expanding
chamber, and a fourth flow channel for guiding gas from the first expanding chamber to the third expanding chamber; and
a cross-sectional area of each of the gas flow channels is different so that the expanding chambers are caused to expand in
stages at different times.
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