Gas generator for airbag
First Claim
1. A gas generator for an airbag, comprising, in a cylindrical housing including at least one gas discharge port in its periphery and having at least one closed end portion, an inner cylindrical member in which the interior is defined to form a gas generating agent accommodating space, a filter for purifying the gas generated by the combustion of the gas generating agent, and an ignition means for igniting and burning the gas generating agent accommodated in the accommodating space, wherein the inner cylindrical member comprises a first outside diameter portion and a second outside diameter portion formed to have a larger outside diameter than that of the first outside diameter portion and also to be in contact with the inner peripheral surface of the housing, with the tip end, in the first outside diameter portion side, being in contact with the closed end portion (one end portion) of the housing, the filter is provided radially on the outside of the first outside diameter portion in the inner cylinder, and the ignition means is provided on the opposite end portion (the other end portion) from the closed end portion of the housing.
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Accused Products
Abstract
The present invention provides a gas generator, relating to a gas generator for a side air bag or the like, in which the gas purification and cooling efficiency in a filter can be enhanced, the filter is not an obstacle in the release of the gas and the structure is simple. A gas generator for an airbag, in which an inner cylindrical member is stored in a housing, wherein the inner cylindrical member has a second outside diameter portion abutting against the inner peripheral surface of the housing, and a first outside diameter portion that is smaller in outside diameter than the second outside diameter portion, the tip end of the first outside diameter portion side abuts against the closed end portion (one end portion) of the housing, the filter is provided on the outside of the inner cylindrical member in the radial direction of the first outside diameter portion, and the ignition means is provided on the opposite end portion (the other end) from the closed end portion of the housing.
31 Citations
8 Claims
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1. A gas generator for an airbag, comprising, in a cylindrical housing including at least one gas discharge port in its periphery and having at least one closed end portion, an inner cylindrical member in which the interior is defined to form a gas generating agent accommodating space, a filter for purifying the gas generated by the combustion of the gas generating agent, and an ignition means for igniting and burning the gas generating agent accommodated in the accommodating space,
wherein the inner cylindrical member comprises a first outside diameter portion and a second outside diameter portion formed to have a larger outside diameter than that of the first outside diameter portion and also to be in contact with the inner peripheral surface of the housing, with the tip end, in the first outside diameter portion side, being in contact with the closed end portion (one end portion) of the housing, the filter is provided radially on the outside of the first outside diameter portion in the inner cylinder, and the ignition means is provided on the opposite end portion (the other end portion) from the closed end portion of the housing.
Specification