| 摘要 |
PURPOSE: An air bag cushion is provided to form a vent hole according to the inner pressure of a cushion when inflating a rear part, thereby obtaining an active bent hole without a separated actuator. CONSTITUTION: An air bag cushion comprises a vent hole, a vent hole cover(200), and a cover tedder(300). The vent hole is formed in the peripheral surface of a cushion(100). A rear part(220) is joined ton an inner surface of the rear part of the vent hole cover, thereby selectively covering the vent hole. A fracturing unit(240) being fractured when exceeding a predetermined pressure in a portion blocking the vent hole. A rear part(320) of the cover tedder is joined to a front part of the vent hole cover.
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