Vehicular airbag apparatus
First Claim
1. A vehicular airbag apparatus comprising:
- a retainer case having a first portion defining a gas diffusion chamber, a second portion defining an accommodation chamber, and a third portion between the first and second portions;
a diffuser member separating the gas diffusion chamber from the accommodation chamber, with a gas communication allowed therebetween through an opening of the diffuser member;
a gas-communicable space remaining between the third portion of the retainer case and the diffuser member and gas-communicable with the gas diffusion chamber;
an inflator disposed in the gas diffusion chamber;
an airbag accommodated in the accommodation chamber, the airbag having a peripheral part thereof retained between the third portion of the retainer case and the diffuser member, with an end part thereof confronting the gas-communicable space; and
a gas invasion restrictor configured to restrict a gas invasion from the gas diffusion chamber into the gas-communicable space.
2 Assignments
0 Petitions
Accused Products
Abstract
A retainer case (4) has a lower portion (4a) defining a gas diffusion chamber (5), and an upper portion (4c) cooperating with an intermediate portion (4b) to define an accommodation chamber (6), a diffuser member (15) separates the gas diffusion chamber (5) from the air bag accommodation chamber (6), with gas communication allowed therebetween through a gas inlet (16) of the diffuser member (15), an infaltor (11) is disposed in the gas diffusion chamber (5), an airbag (8) is accommodated in the accommodation chamber (6), having a retained part (8b) in a space (S1) between the intermediate portion (4b) and the diffuser member (15), and an inward projection (18) of the intermediate portion (4b) and an inward projection (17) of the diffuser member (15) constitute a gas invasion restricting structure (17+18) for restricting a gas invasion from the gas diffusion chamber (5) into the space (S1).
9 Citations
11 Claims
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1. A vehicular airbag apparatus comprising:
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a retainer case having a first portion defining a gas diffusion chamber, a second portion defining an accommodation chamber, and a third portion between the first and second portions;
a diffuser member separating the gas diffusion chamber from the accommodation chamber, with a gas communication allowed therebetween through an opening of the diffuser member;
a gas-communicable space remaining between the third portion of the retainer case and the diffuser member and gas-communicable with the gas diffusion chamber;
an inflator disposed in the gas diffusion chamber;
an airbag accommodated in the accommodation chamber, the airbag having a peripheral part thereof retained between the third portion of the retainer case and the diffuser member, with an end part thereof confronting the gas-communicable space; and
a gas invasion restrictor configured to restrict a gas invasion from the gas diffusion chamber into the gas-communicable space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicular airbag apparatus comprising:
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a retainer case having a first portion defining a gas diffusion chamber, a second portion defining an accommodation chamber, and a third portion between the first and second portions;
a diffuser member separating the gas diffusion chamber from the accommodation chamber, with gas communication allowed therebetween through an opening of the diffuser member;
a gas-communicable space remaining between the third portion of the retainer case and the diffuser member and gas-communicable with the gas diffusion chamber;
an inflator disposed in the gas diffusion chamber;
an airbag accommodated in the accommodation chamber, the airbag having a peripheral part thereof retained between the third portion of the retainer case and the diffuser member, with an end part thereof confronting the gas-communicable space; and
gas invasion restricting means for restricting a gas invasion from the gas diffusion chamber into the gas-communicable space. - View Dependent Claims (10, 11)
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Specification