Patent ID: 11865997
Assignee: TOYODA GOSEI CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An airbag device, comprising:
an airbag having, in a peripheral wall, an exhaust hole through which an inflating gas can be discharged in order to adjust internal pressure;
a blocking member that can adjust the exhaust hole to a blocked state and an opened state;
a coupling member that has flexibility and whose base portion side is coupled to the blocking member;
an actuator, which maintains a state of blocking the exhaust hole by holding a leading end portion side of the coupling member, and causes a shift to a state of opening the exhaust hole by releasing the holding of the leading end portion side of the coupling member; and
an attachment base that holds the airbag and the actuator, wherein
the actuator includes:
a main body portion attached to the attachment base;
a squib provided on one end side inside the main body portion; and
a cap, attached to another end side of the main body portion in such a way as to oppose the squib, that includes a ceiling portion, which is provided in such a way as to close off the other end side of the main body portion and is subjected to pressure of a combustion gas emitted when the squib operates, and a fitting protruding portion, which extends to a main body portion side from the ceiling portion, and regulates movement of the cap in a removal direction opposite to an insertion direction by being inserted into a fitting recessed portion provided on the other end side of the main body portion, thereby attaching the cap to the main body portion, and wherein
the fitting protruding portion includes:
a fitting main body portion fitted in the fitting recessed portion of the main body portion;
a holding portion, which is inserted into a holding hole formed in the coupling member disposed between the ceiling portion and the other end of the main body portion when fitted to the main body portion, and holds the leading end portion of the coupling member by engaging with an inner peripheral edge side of the holding hole; and
a movement permitting unit that, when the ceiling portion is subjected to the pressure of the combustion gas, causes the ceiling portion to move, and causes the holding portion to move from a holding position, wherein the holding portion is inserted into the holding hole of the coupling member, to a holding released position, wherein the holding portion is removed from the holding hole.