IGNITER ASSEMBLY

• US 20120118189A1
• Filed: 11/10/2011
• Published: 05/17/2012
• Est. Priority Date: 11/12/2010
• Status: Active Grant

• Current Assignee: Daicel Corporation
• Original Assignee: Daicel Corporation
• Inventors: YAMAZAKI, Masayuki, MATSUDA, Naoki
• Granted Patent: US 8,863,664 B2
• Time in Patent Office: Days
• US Class Current: 102/202.14
• CPC Class Codes: F42B 3/195 Manufacture

Abstract

An igniter assembly includes, an igniter body having an ignition portion and an electroconductive pin, a substantially cylindrical collar surrounding and retaining the igniter body, and a tubular holder disposed inside the collar and surrounding the electroconductive pin to connect the electroconductive pin to a connector. The igniter body, the collar, and the tubular holder are separate members, and are integrated by a resin (provided that the holder is not fitted by being inserted into the collar or a resin portion covering the collar). The tubular holder has a tubular body portion and a convex portion covered by the resin and formed on an outer circumferential surface of the tubular body portion in the diametrical direction or on an inner circumferential surface of the tubular body portion in the diametrical direction. A fitting portion is provided to the inner circumferential surface of the tubular body portion for fitting the connector.

Claims

1. An igniter assembly comprising:

an igniter body having an ignition portion and an electroconductive pin;

a substantially cylindrical collar surrounding and retaining the igniter body; and

a tubular holder disposed inside the collar and surrounding the electroconductive pin to connect the electroconductive pin to a connector,

the igniter body, the collar and the tubular holder, being separate members from one another, being integrated by a resin (provided that the holder is not fitted by being inserted into the collar or a resin portion covering the collar),

the tubular holder having a tubular body portion and a convex portion which is covered by the resin and formed on an outer circumferential surface of the tubular body portion in the diametrical direction or on an inner circumferential surface of the tubular body portion in the diametrical direction, and

a fitting portion further provided to the inner circumferential surface of the tubular body portion for fitting with the connector.

2. The igniter assembly according to claim 1, wherein the convex portion protrudes inward or outward at a desired height of the tubular body portion.

3. The igniter assembly according to claim 1, wherein the convex portion is of a flange shape or a reverse flange shape formed at an opening of the tubular body portion, on the side closer to the igniter body.

4. The igniter assembly according to claim 1, wherein the convex portion is formed as an annular protrusion or a plurality of independent protrusions.

5. The igniter assembly according to claim 1,

wherein the cross sectional shape in the diametrical direction at a portion having no convex portion of the tubular body portion is polygonal.

6. An igniter assembly comprising:

an igniter body having an ignition portion and an electroconductive pin;

a substantially cylindrical collar surrounding and retaining the igniter body; and

a tubular holder disposed inside the collar and surrounding the electroconductive pin to connect the electroconductive pin to a connector,

the igniter body, the collar and the tubular holder being separate members from one another, being integrated by a resin (provided that the holder is not fitted by being inserted into the collar or a resin portion covering the collar),

the tubular holder having a tubular body portion and a concave portion which is covered by the resin and formed on the outer circumferential surface or the inner circumferential surface of the tubular body portion in the thickness direction of the tubular main body portion, and

a fitting portion further provided to the inner circumferential surface of the tubular body portion for fitting with the connector.

7. The igniter assembly according to claim 6, wherein the concave portion is recessed inward at a desired height of the tubular body portion, and is formed independently in a plurality in the circumferential direction of the tubular body portion.

8. The igniter assembly according to claim 6, wherein the concave portion is formed in the vicinity of an opening of the tubular body portion, on the side closer to the igniter body.

9. An igniter assembly comprising:

an igniter body having an ignition portion and an electroconductive pin;

a substantially cylindrical collar surrounding and retaining the igniter body; and

a tubular holder disposed inside the collar and surrounding the electroconductive pin to connect the electroconductive pin to a connector,

the igniter body, the collar and the tubular holder, being separate members from one another, being integrated by a resin (provided that the holder is not fitted by being inserted into the collar or a resin portion covering the collar),

the tubular holder having a tubular body portion and a through-hole penetrating the tubular body portion in the thickness direction and filled with the resin, and

a fitting portion further provided to the inner circumferential surface of the tubular body portion for fitting with the connector.

10. The igniter assembly according to claim 9, wherein the through-hole is formed in the thickness direction at a desired height of the tubular body portion, and is formed independently in a plurality in the circumferential direction of the tubular body portion.

11. The igniter assembly according to claim 9, wherein the through-hole is formed in the vicinity of an opening of the tubular body portion, on the side closer to the igniter body.