Igniter assembly

• US 20070137512A1
• Filed: 11/02/2006
• Published: 06/21/2007
• Est. Priority Date: 11/08/2005
• Status: Active Grant

• Current Assignee: Daicel Chemical Industries Limited (Daicel Corporation)
• Original Assignee: Daicel Chemical Industries Limited (Daicel Corporation)
• Inventors: Oda, Shingo
• Granted Patent: US 7,854,201 B2
• Time in Patent Office: Days
• US Class Current: 102/202.120
• CPC Class Codes: B60R 2021/26029 Ignitors
• CPC Class Codes: F42B 3/103 Mounting initiator heads in initiators; Sealing-plugs
• CPC Class Codes: F42B 3/195 Manufacture

Abstract

The present invention provides an igniter assembly including: an electric igniter and igniter collar, a resin fixing the electric igniter into the igniter collar, the electric igniter having an igniter main body and a conductive pin which extends from the igniter main body, a first through hole formed in the axial direction and one or two or more second through hole formed in the axial direction separately from the first through hole being provided to the igniter collar, the electric igniter being fixed inside the first through hole by the resin, and the resin also being charged into the second through hole.

Claims

1. An igniter assembly comprising:

an electric igniter and igniter collar,

a resin fixing the electric igniter into the igniter collar,

the electric igniter having an igniter main body and a conductive pin which extends from the igniter main body,

a first through hole formed in the axial direction and one or two or more second through hole formed in the axial direction separately from the first through hole being provided to the igniter collar,

the electric igniter being fixed inside the first through hole by the resin, and the resin also being charged into the second through hole.

3. The igniter assembly according to claim 1 or claim 2, wherein the first through hole has three spaces of different inner diameters, the three spaces are a first larger-diameter section space at one end, a second larger-diameter section space at the other end where the conductive pin is positioned, and an intermediate smaller-diameter section space, and the second through hole links the first larger-diameter section space and the second larger-diameter section space.

7. The igniter assembly according to claim 3, wherein the second larger-diameter section space is a space for inserting a connector, and a side surface covered with the resin has a concave section of the shape corresponding to the protrusion of the connector.

8. A method for assembling the igniter assembly described in claim 1, 2, 4 or 5, including the steps of:

attaching the igniter collar and the electric igniter to a lower mold so that the electric igniter is positioned inside the first through hole of the igniter collar;

combining an upper mold having a resin charging port with the lower mold;

injecting a molten resin from the resin charging port of the upper mold via the second through hole or the through groove, charging the resin into a space formed by the lower mold, the upper mold, the igniter collar, and the electric igniter, solidifying the resin, and fixing the electric igniter inside the first through hole; and

demolding.

2. An igniter assembly comprising:

two electric igniters and a single igniter collar,

a resin fixing the electric igniters into the igniter collar,

each of the two electric igniters having an igniter main body and a conductive pin which extends from the igniter main body,

two first through holes formed in the axial direction, one or two or more second through hole formed in the axial direction separately from the first through holes and a joining groove joining one end open sections of the two first through holes being provided to the igniter collar,

the electric igniter being fixed by the resin inside the first through holes, and the resin also being charged into the second through holes and the joining groove.

4. An igniter assembly comprising:

an electric igniter and an igniter collar,

a resin fixing the electric igniter into the igniter collar,

the electric igniter having an igniter main body and a conductive pin which extends from the igniter main body,

a first through hole formed in the axial direction and one or two or more through groove formed in the axial direction along the inner periphery of the first through hole being provided to the igniter collar,

the electric igniter being fixed by the resin inside the first through hole and the resin being charged into the through groove.

6. The igniter assembly according to claim 4 or 5, wherein the first through hole has three spaces of different inner diameters, the three spaces are a first larger-diameter section space at one end, a second larger-diameter section space at the other end where the conductive pin is positioned, and an intermediate smaller-diameter section space, and the through groove is formed to extend between the first larger-diameter section space and the second larger-diameter section space.

9. The igniter assembly according to claim 6, wherein the second larger-diameter section space is a space for inserting a connector, and a side surface covered with the resin has a concave section of the shape corresponding to the protrusion of the connector.

5. An igniter assembly comprising:

two electric igniters and a single igniter collar,

a resin fixing the electric igniters into the igniter collar,

each of the two electric igniters having an igniter main body and a conductive pin which extends from the igniter main body,

two first through holes formed in the axial direction, one or two or more through groove formed in the axial direction along the inner periphery of the first through holes and a joining groove joining one end open sections of the two through holes, being provided to the igniter collar,

the electric igniter being fixed by the resin inside the first through holes and the resin being charged into the through grooves and the joining groove.