Vehicle airbag device
First Claim
1. A vehicle airbag device comprising:
- a gas generation portion that generates gas when activated;
an airbag which is housed in a folded state when the gas generation portion is not activated, and which inflates and deploys by receiving supply of a gas when the gas generation portion is activated, and whose two side portions are provided with vent holes for letting out the gas;
a tether that includes pair of left and right side portions whose base end portions are fixed to a gas generation portion-side site or a site on a side of the airbag opposite to an occupant side, and which extend along internal side surfaces of the two side portions of the airbag, and an intermediate portion that interconnects occupant-side end portions of the pair of left and right side portions in an airbag transverse direction and that is disposed apart by a predetermined distance from and facing an occupant-side end portion of the airbag; and
a vent hole opening-closing control portion that maintains an open state of the vent holes when a pressing force that acts on the intermediate portion of the tether is less than a predetermined value, and that closes the vent holes by moving the pair of left and right side portions relative to the internal side surfaces of the two side portions of the airbag when the pressing force on the intermediate portion of the tether is greater than or equal to the predetermined value.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle airbag device includes: an airbag which is housed in a folded state when a gas generation portion is not activated, and which inflates and deploys by receiving gas when the gas generation portion is activated, and whose two side portions are provided with gas outlet vent holes; and a tether that includes pair of left and right side portions extending along internal side surfaces of the two side portions of the airbag, and an intermediate portion interconnecting occupant-side end portions of the pair of left and right side portions. The airbag devices closes the vent holes by moving the pair of left and right side portions relative to the internal side surfaces of the two side portions of the airbag when the pressing force on the intermediate portion of the tether is greater than or equal to a predetermined value.
26 Citations
19 Claims
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1. A vehicle airbag device comprising:
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a gas generation portion that generates gas when activated; an airbag which is housed in a folded state when the gas generation portion is not activated, and which inflates and deploys by receiving supply of a gas when the gas generation portion is activated, and whose two side portions are provided with vent holes for letting out the gas; a tether that includes pair of left and right side portions whose base end portions are fixed to a gas generation portion-side site or a site on a side of the airbag opposite to an occupant side, and which extend along internal side surfaces of the two side portions of the airbag, and an intermediate portion that interconnects occupant-side end portions of the pair of left and right side portions in an airbag transverse direction and that is disposed apart by a predetermined distance from and facing an occupant-side end portion of the airbag; and a vent hole opening-closing control portion that maintains an open state of the vent holes when a pressing force that acts on the intermediate portion of the tether is less than a predetermined value, and that closes the vent holes by moving the pair of left and right side portions relative to the internal side surfaces of the two side portions of the airbag when the pressing force on the intermediate portion of the tether is greater than or equal to the predetermined value. - View Dependent Claims (2, 3)
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4. A vehicle airbag device comprising:
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a gas generation portion that generates gas when activated; an airbag which is housed in a folded state when the gas generation portion is not activated, and which inflates and deploys by receiving supply of a gas when the gas generation portion is activated, and whose two side portions are provided with vent holes for letting out the gas; a tether that includes pair of left and right side portions whose base end portions are fixed to a gas generation portion-side site or a site on a side of the airbag opposite to an occupant side, and which extend along internal side surfaces of the two side portions of the airbag, and an intermediate portion that interconnects occupant-side end portions of the pair of left and right side portions in an airbag transverse direction; and a vent hole opening-closing control portion that maintains an open state of the vent holes when a pressing force that acts on the intermediate portion of the tether is less than a predetermined value, and that closes the vent holes by moving the pair of left and right side portions relative to the internal side surfaces of the two side portions of the airbag when the pressing force on the intermediate portion of the tether is greater than or equal to the predetermined value. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A airbag body for a vehicle airbag device comprising:
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an airbag which is housed in a folded state when a airbag device is not activated, and which inflates and deploys by receiving supply of a gas when the airbag device is activated, and whose two side portions are provided with vent holes for letting out the gas; a tether that includes pair of left and right side portions whose base end portions are fixed to a gas generation portion-side site or a site on a side of the airbag opposite to an occupant side, and which extend along internal side surfaces of the two side portions of the airbag, and an intermediate portion that interconnects occupant-side end portions of the pair of left and right side portions in an airbag transverse direction; and a vent hole opening-closing control portion that maintains an open state of the vent holes when a pressing force that acts on the intermediate portion of the tether is less than a predetermined value, and that closes the vent holes by moving the pair of left and right side portions relative to the internal side surfaces of the two side portions of the airbag when the pressing force on the intermediate portion of the tether is greater than or equal to the predetermined value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification