Gas generator
First Claim
Patent Images
1. A gas generator, comprising:
- an igniter assembly including an igniter main body having an ignition portion adapted to be ignited by an ignition electric current;
an igniter collar which accommodates the igniter main body;
a cup body having an opening portion, the igniter assembly and the cup body being connected to each other, such that at least the ignition portion of the igniter main body is surrounded by the cup body;
a gas generating agent accommodated inside the cup body, anda tubular crimp case having an upper end and a lower end, the tubular crimp case connecting and fastening the cup body to the igniter collar by bending the upper end of the tubular crimp case towards the igniter collar, such that a first bent portion formed at the upper end of the tubular crimp case presses a part of the cup body against a part of an exterior surface of the igniter collar.
1 Assignment
0 Petitions
Accused Products
Abstract
An igniter includes: an igniter assembly including an igniter main body having an ignition portion adapted to be ignited by an ignition electric current; an igniter collar which accommodates the igniter main body; a cup body having an opening portion, the igniter assembly and the cup body being connected to each other, such that at least the ignition portion of the igniter main body is surrounded by the cup body; and a tubular crimp case that connects and fastens at least a part of an exterior surface of the igniter collar and at least a part of an exterior surface of the cup body from an outside.
31 Citations
16 Claims
-
1. A gas generator, comprising:
-
an igniter assembly including an igniter main body having an ignition portion adapted to be ignited by an ignition electric current; an igniter collar which accommodates the igniter main body; a cup body having an opening portion, the igniter assembly and the cup body being connected to each other, such that at least the ignition portion of the igniter main body is surrounded by the cup body; a gas generating agent accommodated inside the cup body, and a tubular crimp case having an upper end and a lower end, the tubular crimp case connecting and fastening the cup body to the igniter collar by bending the upper end of the tubular crimp case towards the igniter collar, such that a first bent portion formed at the upper end of the tubular crimp case presses a part of the cup body against a part of an exterior surface of the igniter collar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of manufacturing a gas generator, comprising:
-
placing an igniter collar, generally cylindrical in shape, into a tubular crimp case; installing an igniter main body to the igniter collar to form an igniter assembly; placing a cup body having a flange portion formed outwardly at an opening portion over the igniter main body; crimping an upper end of the tubular crimp case inwardly and pressing the flange portion of the cup body against the igniter collar; and crimping a lower end of the tubular crimp case inwardly and pressing the lower end against the igniter collar. - View Dependent Claims (10, 11)
-
-
12. A method of manufacturing a gas generator, comprising:
-
placing an igniter collar, generally cylindrical in shape, into a tubular crimp case having a bent portion formed inwardly at a lower end of the tubular crimp case from an upper end of the tubular crimp case; installing an igniter main body to the igniter collar to form an igniter assembly; placing a cup body having a flange portion formed outwardly at an opening portion over the ignition main body; crimping the upper end of the tubular crimp case inwardly and pressing the flange portion of the cup body against the igniter collar; and pressing the igniter collar against the bent portion of the tubular crimp case by pressing the flange portion against the igniter collar. - View Dependent Claims (13, 14, 15, 16)
-
Specification