IGNITER FIXING STRUCTURE

• US 20100242779A1
• Filed: 03/25/2010
• Published: 09/30/2010
• Est. Priority Date: 03/26/2009
• Status: Active Grant

• Current Assignee: Daicel Chemical Industries Limited
• Original Assignee: Daicel Chemical Industries Limited
• Inventors: KATSUDA, Nobuyuki, Yabuta, Mikio
• Granted Patent: US 8,245,639 B2
• Time in Patent Office: Days
• US Class Current: 102/530
• CPC Class Codes: F42B 3/103 Mounting initiator heads in initiators; Sealing-plugs

Abstract

The present invention provides an igniter fixing structure, including a plurality of igniter bodies, having an ignition portion and an electroconductive pin, each of the igniter bodies being fixed, by a resin, to a peripheral edge of a port formed in a plate-like portion serving as a fixing object, the number of the port being the same as that of the plurality of the igniter bodies and

• • a single retainer as a support member for the plurality of igniter bodies,
  • the retainer having a plurality of support portions each having a hole for passing the electroconductive pin therethrough and a connection plate portion that connects the plurality of support portions,
  • at least the support portions being embedded in the resin in a state in which the electroconductive pin passes through the hole,
  • at least the connection plate portion being disposed to abut against the plate-like portion.

Claims

1. An igniter fixing structure, comprising:

a plurality of igniter bodies, having an ignition portion and an electroconductive pin, each of the igniter bodies being fixed, by a resin, to a peripheral edge of a port formed in a plate-like portion serving as a fixing object, the number of the port being the same as that of the plurality of the igniter bodies; and

a single retainer as a support member for the plurality of igniter bodies,

the retainer having a plurality of support portions each having a hole for passing the electroconductive pin therethrough and a connection plate portion that connects the plurality of support portions,

at least the support portions being embedded in the resin in a state in which the electroconductive pin pass through the hole,

at least the connection plate portion being disposed to abut against the plate-like portion.

2. The igniter fixing structure according to claim 1, wherein the plurality of support portions and the connection plate portion of the retainer are integrated by a wall portions formed of a vertical surface, a stepped surface or an inclined surface.

3. The igniter fixing structure according to claim 1, wherein a hole diameter of the plurality of support portions is less than an outer diameter of the ignition portion of the igniter body.

4. The igniter fixing structure according to claim 1, wherein the entire retainer is embedded in the resin.

5. A gas generator, having a gas generating agent as a gas generation source, including the igniter fixing structure according to claim 1, wherein the plate-like portion serving as the fixing object is a housing bottom plate of the gas generator.