GAS GENERATOR
First Claim
1. A gas generator, comprising:
- a short cylindrical housing which is constituted of a top plate portion (21) and a bottom plate portion (11) closing axial end portions and a circumferential wall portion (12, 22) provided with a gas discharge opening (23) and includes therein a combustion chamber (60) accommodating a gas generating agent (61);
an igniter (40) assembled to said bottom plate portion (11), for burning said gas generating agent (61);
a cylindrical cup-shaped member (46) with bottom containing an enhancer chamber (47) accommodating an enhancer agent (48) and arranged to protrude into said combustion chamber (60) so as to face said igniter (40); and
a holding portion (30) provided on said bottom plate portion (11), for holding said igniter (40),said housing at least having a lower shell (10) including said bottom plate portion (11) and an upper shell (20) including said top plate portion (21),said lower shell including a protruding cylindrical portion (13) provided to protrude toward said top plate portion (21) and an opening (15) provided at an axial end portion of said protruding cylindrical portion (13), which is located on a side of said top plate portion (21),said holding portion (30) being formed from a resin-molded portion which is formed by attaching a fluid resin material to said bottom plate portion (11) so as to reach a part of an outer surface of said bottom plate portion (11) from a part of an inner surface of said bottom plate portion (11) through said opening (15) and solidifying the fluid resin material so that at least a part of the resin-molded portion is secured to said bottom plate portion (11),one of said cup-shaped member (46) and said holding portion (30) being provided with a first locking portion,the other of said cup-shaped member (46) and said holding portion (30) being provided with a first locked portion, andsaid cup-shaped member (46) being held by said holding portion (30) by locking of said first locking portion to said first locked portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas generator (1A) includes a lower shell (10), an upper shell (20), a holding portion (30), an igniter (40), an enhancer cup (46), and a filter (70). The lower shell (10) is made of a press-formed product formed by press-working one plate-shaped member made of metal, and includes a protruding cylindrical portion (13) and an opening (15) provided in the protruding cylindrical portion (13). The holding portion (13) is made of a resin-molded portion formed by attaching an insulating fluid resin material to a bottom plate portion (11) so as to reach a part of an outer surface from a part of an inner surface of the bottom plate portion (11) of the lower shell (10) through the opening (15) and solidifying the same. The enhancer cup (46) is held by the holding portion (30) as an locking protruding portion (46a) provided in the enhancer cup (46) is locked to a locking recess portion (36a) provided in the holding portion (30).
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Citations
9 Claims
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1. A gas generator, comprising:
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a short cylindrical housing which is constituted of a top plate portion (21) and a bottom plate portion (11) closing axial end portions and a circumferential wall portion (12, 22) provided with a gas discharge opening (23) and includes therein a combustion chamber (60) accommodating a gas generating agent (61); an igniter (40) assembled to said bottom plate portion (11), for burning said gas generating agent (61); a cylindrical cup-shaped member (46) with bottom containing an enhancer chamber (47) accommodating an enhancer agent (48) and arranged to protrude into said combustion chamber (60) so as to face said igniter (40); and a holding portion (30) provided on said bottom plate portion (11), for holding said igniter (40), said housing at least having a lower shell (10) including said bottom plate portion (11) and an upper shell (20) including said top plate portion (21), said lower shell including a protruding cylindrical portion (13) provided to protrude toward said top plate portion (21) and an opening (15) provided at an axial end portion of said protruding cylindrical portion (13), which is located on a side of said top plate portion (21), said holding portion (30) being formed from a resin-molded portion which is formed by attaching a fluid resin material to said bottom plate portion (11) so as to reach a part of an outer surface of said bottom plate portion (11) from a part of an inner surface of said bottom plate portion (11) through said opening (15) and solidifying the fluid resin material so that at least a part of the resin-molded portion is secured to said bottom plate portion (11), one of said cup-shaped member (46) and said holding portion (30) being provided with a first locking portion, the other of said cup-shaped member (46) and said holding portion (30) being provided with a first locked portion, and said cup-shaped member (46) being held by said holding portion (30) by locking of said first locking portion to said first locked portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification