Airbag device
First Claim
1. An airbag device comprising:
- an airbag to be inflated and deployed toward a passenger by high-pressure gas ejected from an inflator upon a vehicle collision;
an inner pressure adjusting unit provided on the airbag and capable of adjusting an aperture efficiency of at least one vent hole in plural steps according to a deploying state of the airbag;
a tether belt whose one end is connected to the inner pressure adjusting unit; and
a holding unit for hooking another end of the tether belt and capable of releasing the other end of the tether belt,wherein, in a case where the inflating airbag needs to exert a small reactive force, the inner pressure adjusting unit is made in a full-opened state at a development early stage of the airbag with the other end of the tether belt being held by the holding unit and then the inner pressure adjusting unit is made in a half-opened state until a development final stage of the airbag with the other end of the tether belt being kept held by the holding unit, and,in a case where the inflating airbag needs to exert a large reactive force, the inner pressure adjusting unit is made in a full-closed state from a development start to the development final stage of the airbag with the other end of the tether belt being released from the holding unit.
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Accused Products
Abstract
An airbag device includes an airbag, an adjusting unit capable of adjusting an aperture efficiency of at least one vent hole, a tether belt whose one end is connected to the adjusting unit, and a holding unit for hooking another end of the tether belt. In case where the inflating airbag needs to exert a small reactive force, the adjusting unit is made in a full-opened state at a development early stage with the other end being held by the holding unit and then made in a half-opened until a development final stage with the other end being kept held by the holding unit. In case where the inflating airbag needs to exert a large reactive force, the adjusting unit is made in a full-closed state from a development start to the development final stage with the other end being released from the holding unit.
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Citations
5 Claims
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1. An airbag device comprising:
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an airbag to be inflated and deployed toward a passenger by high-pressure gas ejected from an inflator upon a vehicle collision; an inner pressure adjusting unit provided on the airbag and capable of adjusting an aperture efficiency of at least one vent hole in plural steps according to a deploying state of the airbag; a tether belt whose one end is connected to the inner pressure adjusting unit; and a holding unit for hooking another end of the tether belt and capable of releasing the other end of the tether belt, wherein, in a case where the inflating airbag needs to exert a small reactive force, the inner pressure adjusting unit is made in a full-opened state at a development early stage of the airbag with the other end of the tether belt being held by the holding unit and then the inner pressure adjusting unit is made in a half-opened state until a development final stage of the airbag with the other end of the tether belt being kept held by the holding unit, and, in a case where the inflating airbag needs to exert a large reactive force, the inner pressure adjusting unit is made in a full-closed state from a development start to the development final stage of the airbag with the other end of the tether belt being released from the holding unit. - View Dependent Claims (2, 3, 4, 5)
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Specification