Ignitor assembly
First Claim
1. An igniter assembly in which an igniter and a substantially cylindrical metal collar for holding the igniter from outside are integrated by a resin existing between the igniter and the metal collar, wherein the substantially cylindrical metal collar has at least one of a protruding portion extending axially upward from a collar main body portion and a protruding portion extending radially inward from a collar main body portion, and at least part of the protruding portion is in contact with the resin, and an outer surface of the substantially cylindrical metal collar and an outer surface of the resin are substantially in the same plane in at least one of the axial direction and the radial direction.
1 Assignment
0 Petitions
Accused Products
Abstract
An igniter assembly having excellent moisture proof is provided.
A cylindrical protruding portion 24 and a cylindrical stepped portion 25 are arranged in the metal collar 20. Shrinkage of a resin 30 after injection-molding produces a gap in an interface 50 but, to the contrary, in an interface 51, it presses the cylindrical stepped portion 25 and does not produce a gap. Thereby, since production of a continuous gap is prevented, entry of moisture is prevented.
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Citations
13 Claims
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1. An igniter assembly in which an igniter and a substantially cylindrical metal collar for holding the igniter from outside are integrated by a resin existing between the igniter and the metal collar,
wherein the substantially cylindrical metal collar has at least one of a protruding portion extending axially upward from a collar main body portion and a protruding portion extending radially inward from a collar main body portion, and at least part of the protruding portion is in contact with the resin, and an outer surface of the substantially cylindrical metal collar and an outer surface of the resin are substantially in the same plane in at least one of the axial direction and the radial direction.
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4. An igniter assembly in which an igniter and a substantially cylindrical metal collar for holding the igniter from outside are integrated by a resin existing between the igniter and the metal collar,
wherein the substantially cylindrical metal collar has at least a cylindrical protruding portion extending axially upward from a collar main body portion, in the cylindrical protruding portion, a contacting portion where a circular end surface contacts an outer surface is cut and formed in a cylindrical stepped portion or a circular inclined surface, the cylindrical stepped portion or the cylindrical inclined surface of the cylindrical protruding portion and an inner surface are covered with the resin, an outer surface expect for the cylindrical stepped portion or the cylindrical inclined surface is not covered with the resin, and the outer surface of the substantially cylindrical metal collar and an outer surface of the resin are substantially in the same plane in the axial direction.
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8. An igniter assembly in which an igniter and a substantially cylindrical metal collar for holding the igniter from outside are integrated by a resin existing between the igniter and the metal collar,
wherein the metal collar has such a strength as slightly deforms on receiving injection pressure by an injection-molding means of a resin, the resin is charged between the igniter and the metal collar by the injection-molding means, and a helium leakage quantity prescribed in JIS Z2331 in a contact surface between the metal collar and the resin is less than 1× - 10−
6 Pa·
m3/s (air conversion). - View Dependent Claims (9, 10, 11, 13)
- 10−
Specification