Gas producer for air bag
First Claim
1. A gas generator for an airbag, comprising:
- a housing;
an ignition unit accommodating chamber formed in said housing, said chamber being defined at least by a wall;
an igniter provided in said ignition unit accommodating chamber, a head portion of said igniter opposing said wall; and
a transfer charge container provided in said ignition unit accommodating chamber, said container making a direct contact with said wall at a first portion thereof and making contact with the head portion of said igniter at a second portion thereof, said second portion being formed with a resilient convex portion convexed from an inside to an outside of said transfer charge cup, said convex portion resiliently deflecting from the force of the igniter.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas generator for an airbag has a reduced number of components and in which an automatic ignition material can ignite at an appropriate time. This gas generator includes a housing, an ignition unit accommodating chamber in the housing, an ignition unit installed in the ignition unit accommodating chamber, a gas generating material, and a cooling and purifying unit. The ignition unit includes a transfer charge container and an igniter. The transfer charge container has a cup containing a transfer charge and a cover hermetically sealing the cup. The igniter is activated by a signal to ignite the transfer charge, and a generated gas is introduced into an airbag to protect an occupant against an impact. The transfer charge container includes a cup part and a cover part, either the bottom of the cup part or the cover part are outwardly curved to form an outwardly convex surface. The container is resiliently held between a top wall portion of the ignition unit accommodating chamber and the igniter.
23 Citations
7 Claims
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1. A gas generator for an airbag, comprising:
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a housing;
an ignition unit accommodating chamber formed in said housing, said chamber being defined at least by a wall;
an igniter provided in said ignition unit accommodating chamber, a head portion of said igniter opposing said wall; and
a transfer charge container provided in said ignition unit accommodating chamber, said container making a direct contact with said wall at a first portion thereof and making contact with the head portion of said igniter at a second portion thereof, said second portion being formed with a resilient convex portion convexed from an inside to an outside of said transfer charge cup, said convex portion resiliently deflecting from the force of the igniter. - View Dependent Claims (2, 3, 4, 5, 6)
said transfer charge container includes a cup portion for accommodating a transfer charge therein, and a cover portion for hermetically closing said cup portion, wherein said resilient convex portion is formed in one of a end face of said cup portion and said cover portion. -
3. The gas generator according to claim 1, wherein said wall is an inner surface of said housing.
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4. The gas generator according to claim 3, wherein said ignition unit accommodating chamber is defined by the inner surface of the housing and a cylindrical member provided in said housing.
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5. The gas generator according to claim 1, wherein said cup portion makes contact with said wall, and said cover portion makes contact with the head portion of said igniter.
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6. The gas generator according to claim 5, wherein a diameter of the head portion of said igniter is smaller than a diameter of said cover portion.
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7. A gas generator for an airbag, comprising:
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a housing;
an ignition unit accommodating chamber formed in said housing, said chamber being defined at least by a wall;
an igniter provided in said ignition unit accommodating chamber, a head portion of said igniter opposing said wall;
a transfer charge container provided in said ignition unit accommodating chamber, said container making a direct contact with said wall at a first portion thereof and making contact with the head portion of said igniter at a second portion thereof, said container having a resilient convex portion formed in one of said first portion and said second portion, said convex portion resiliently deflecting from the force of the igniter; and
an automatic ignition material accommodated in said transfer charge container adjacent said first portion.
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Specification