| 摘要 |
An inflatable vehicle occupant protection device (10) has a vent panel (40) defining a first vent opening (42) for enabling flow of inflation fluid out of the device. A vent strap (60) has a second vent opening (72) movable relative to the first vent opening (42). The vent strap (60) has opposite ends (62, 66) that are fixed when the protection device (10) is in the deflated condition. The vent strap (60) has slack (80) due to the length of the strap being greater than the distance between the locations where its opposite ends (62, 66) are fixed. One of the ends (66) of the vent strap (60) moves as the protection device (10) is inflated to remove the slack (80) and move the second vent opening (72) relative to the first vent opening (42).
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