Gas generator
AssigneeTakata Corporation
InventorKoji Koga
Life of this patent
Estimating the term…
Abstract
A gas generator is provided in which partitions for forming a plurality of gas-generation chambers are easily mounted. A detonator disposed in a booster tube is ignited by an initiator for the booster tube. A gas-generating agent disposed above or below a partition plate reacts to the reaction gas from the detonator, and a gas passes through a filter and is ejected through gas outlets. Booster tubes include larger diameter portions at the upper portions of the booster tubes, and smaller diameter portions at the lower portions of the booster tubes. The larger diameter portions are formed in a diameter-enlarging process. During formation of the gas generator, the booster tubes are individually inserted into holes of the partition plate from the smaller diameter portions of the booster tubes.
Claims17
A gas generator comprising:
- a container;
- a gas-generating agent disposed in the container;
- a detonator for igniting the gas-generating agent;
- a cylindrical first partition member provided in the container, the detonator being disposed in the first partition member;
- a second partition member for forming a plurality of chambers for containing the gas-generating agent outside the at least one first partition member;
- wherein the second partition member is provided with at least one through-hole coupled with the at least one first partition member;
- and
- wherein the first partition member includes two portions, the first portion located at one end of the first partition member having a diameter larger than the second portion, and
- wherein the through-hole of the second partition member is coupled with the first portion of the first partition member
- wherein the container includes gas exits above the second partition and gas exits below the second partition.
A multi-stage gas generator including a container containing a gas-generating agent, a booster tube containing a detonator and a partition plate dividing the container into first and second chambers;
- wherein the booster tube includes an enlarged section press fitted into a hole in the partition plate;
- wherein the container includes a first set of gas exits for the first chamber and a second set of gas exits for the second chamber.
An airbag device, comprising:
- an airbag;
- and
- a gas generator;
- wherein the gas generator comprises:
- a container;
- a gas-generating agent disposed in the container;
- a detonator for igniting the gas-generating agent;
- a cylindrical first partition member provided in the container, the detonator being disposed in the first partition member;
- a second partition member for forming a plurality of chambers for containing the gas-generating agent outside the at least one first partition member;
- wherein the second partition member is provided with at least one through-hole coupled with the at least one first partition member;
- and
- wherein the first partition member includes two portions, the first portion located at one end of the first partition member having a diameter larger than the second portion, and wherein the through-hole of the second partition member is coupled with the first portion of the first partition member
- wherein the container includes gas exits above the second partition and gas exits below the second partition.
An airbag device, comprising:
- an airbag;
- and
- a multi-stage gas generator;
- wherein the multi-stage gas generator includes a container containing a gas-generating agent, a booster tube containing a detonator and a partition plate dividing the container into first and second chambers;
- wherein the booster tube includes an enlarged section press fitted into a hole in the partition plate;
- wherein the container includes a set of gas exits for the first chamber and a set of gas exits for the second chamber.
Dependencies are inferred from the claim text.