| 摘要 |
<p>PURPOSE: An air-bag is provided to protect a passenger by adjusting the size of an opening unit according to a weight of the passenger and the speed of a car when car is crashed in order to generate a desire pressure. CONSTITUTION: An air-bag(100) includes a cushion(110) and a vent unit(130). The vent unit is formed in the cushion. The vent unit discharges a gas in the cushion to the outside. The opening of the vent unit is adjusted according to a pressure which is applied to the cushion. A plurality of holes is formed to a first direction. A plurality of holes is formed to a second direction. The space between the holes of the first direction and the space between the holes of the second direction are torn to form the opening of the vent unit.</p> |
