Gas generator
First Claim
1. A gas generator comprising:
- a housing in a shape of a short cylinder, the housing being made up of a top plate part and a bottom plate part that close axial end parts, and a peripheral wall part provided with a gas discharge opening, and containing a combustion chamber accommodating a gas generating agent,an igniter attached to said bottom plate part, and containing an ignition part accommodating an ignition charge that ignites in actuation,a cup-shaped member in a shape of a substantial cylinder opening in an end part on a side of said bottom plate part, the cup-shaped member containing a transfer charge chamber accommodating a transfer charge, and disposed to project toward inside said combustion chamber in such a manner that said transfer charge chamber faces said ignition part,a cylindrical filter situated inside said housing, and disposed to surround said combustion chamber in a radial direction of said housing, andan annular first pad member situated between said bottom plate part and said gas generating agent in a part of said combustion chamber on the side of said bottom plate part, and applied to cover a boundary between said filter and said bottom plate part,said cup-shaped member having a top wall part and a lateral wall part defining said transfer charge chamber, and a first extension part extending outwardly in a radial direction along an inner bottom face of said bottom plate part from a part of said lateral wall part on a side of the open end,said first pad member having an abutting part abutting with an inner circumferential face of an axial end part situated on the side of said bottom plate part of said filter, and a second extension part extending from said abutting part inwardly in the radial direction along the inner bottom face of said bottom plate part,wherein by at least a part of said first extension part being arranged between said bottom plate part and said second extension part along an axial direction of said housing, movement of said cup-shaped member along the axial direction of said housing is restricted, and said cup-shaped member is assembled to said bottom plate part.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas generator includes a bottom plate part which is a part of a housing, a cup-shaped member accommodating a transfer charge, a cylindrical filter accommodated in the housing, and an annular first pad member situated in a part on the side of the bottom plate part of a combustion chamber. The cup-shaped member is arranged to project toward inside the combustion chamber, and has a first extension part extending outwardly in the radial direction from a part on the side of an open end along the bottom plate part. The first pad member has a second extension part extending inwardly in the radial direction from an abutting part abutting on the inner circumferential face of the filter along the bottom plate part. By sandwiching the first extension part between the bottom plate part and the second extension part, the cup-shaped member is fixed to the bottom plate part.
11 Citations
12 Claims
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1. A gas generator comprising:
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a housing in a shape of a short cylinder, the housing being made up of a top plate part and a bottom plate part that close axial end parts, and a peripheral wall part provided with a gas discharge opening, and containing a combustion chamber accommodating a gas generating agent, an igniter attached to said bottom plate part, and containing an ignition part accommodating an ignition charge that ignites in actuation, a cup-shaped member in a shape of a substantial cylinder opening in an end part on a side of said bottom plate part, the cup-shaped member containing a transfer charge chamber accommodating a transfer charge, and disposed to project toward inside said combustion chamber in such a manner that said transfer charge chamber faces said ignition part, a cylindrical filter situated inside said housing, and disposed to surround said combustion chamber in a radial direction of said housing, and an annular first pad member situated between said bottom plate part and said gas generating agent in a part of said combustion chamber on the side of said bottom plate part, and applied to cover a boundary between said filter and said bottom plate part, said cup-shaped member having a top wall part and a lateral wall part defining said transfer charge chamber, and a first extension part extending outwardly in a radial direction along an inner bottom face of said bottom plate part from a part of said lateral wall part on a side of the open end, said first pad member having an abutting part abutting with an inner circumferential face of an axial end part situated on the side of said bottom plate part of said filter, and a second extension part extending from said abutting part inwardly in the radial direction along the inner bottom face of said bottom plate part, wherein by at least a part of said first extension part being arranged between said bottom plate part and said second extension part along an axial direction of said housing, movement of said cup-shaped member along the axial direction of said housing is restricted, and said cup-shaped member is assembled to said bottom plate part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification