Initiator and gas generator

A detonator and end plate technology, which is applied in blasting barrels, weapon accessories, transportation and packaging, etc., can solve the problems of labor-intensive manufacturing and high cost, and achieve the effect of reducing manufacturing costs and making it easy to manufacture

Inactive Publication Date: 2005-02-16
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] the above Image 6 Shown prior detonator, a pair of pin-shaped conductors 22,24 are inserted in the inner hole 20 of metal inner end plate 16 in its manufacturing process, and glass powder is filled in the outer peripheral surface of conductor 22,24 and The glass powder is sintered between the inner peripheral surfaces of the inner hole 20, so it is necessary to hold the conductors 22 and 24 until the sintering is completed, resulting in laborious and costly manufacture.

Method used

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  • Initiator and gas generator
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  • Initiator and gas generator

Examples

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Embodiment Construction

[0035] Embodiments will be described below with reference to the drawings. Figure 1 ~ Figure 4 (a) and Figure 5 All are cross-sectional views of detonators according to embodiments of the present invention, Figure 4 (b) is a perspective view of the electrode pin in figure (a).

[0036] figure 1 The detonator is equipped with a ceramic end plate 54 inserted into a case 52 made of SUS304 or the like and an inlet portion of the case 53, and a reaction agent is filled between the case 52 and the top end surface of the end plate 54. 48.

[0037] In this embodiment, the end plate 54 is composed of a small-diameter cylindrical front half 58 and a large-diameter cylindrical rear half 60 connected to the rear end of the front half 58 .

[0038] A pair of holes 66 penetrating in the thickness direction of the end plate are provided in the central portion of the end plate 54 . Electrode pins (hereinafter, simply referred to as pins) 62 and 64 are inserted into the holes 66 at a ...

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PUM

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Abstract

The invention provides an initiator easy to manufacture and capable of reducing its manufacturing cost, and a gas generator provided with this initiator. The initiator 50 comprises a cup 52 and a header 54 made of ceramic inserted into an inlet portion of the cup 52, and a reaction agent 48 is charged between the cup 52 and a tip end surface of the header 54. A rear end of the cup 52 is defined as a caulking part 53 along a rear end of the header 54. Pins 62 and 64 are arranged on the rear end of the cup 52. In order to fix the pins 62 and 64 on this header 54, after the pins 62 and 64 are arranged in a die for molding the header 54, starting material powders are supplied and pressed to mold a green compact. Thereafter, the green compact is dried and pre-burned, as required, and then burned.

Description

technical field [0001] The present invention relates to a detonator suitable for being incorporated into a gas generator such as an airbag device or a seat belt pretensioner, and a gas generator including the detonator. Background technique [0002] An airbag device installed on a high-speed moving body such as an automobile is configured to rapidly inflate a bag-shaped airbag by a gas generator called an initiator. The gas generator includes a gas generating agent and an initiator for initiating a gas generating reaction of the gas generating agent. Conventionally, this detonator has a reaction agent and a metal wire (bridge standard wire) as a resistance heating element for initiating the reaction of the reaction agent (for example, US Pat. No. 5,140,906). [0003] Image 6 It is a sectional view of the detonator of the same number and the igniter (gas generator) equipped with this detonator. [0004] The igniter 10 ignites the booster 10b (a mixture of metallic titanium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B3/12B60R21/26B60R21/264F42B3/103
CPCF42B3/103B60R2021/26029
Inventor 古泽隆史尼野顺也古贺幸二
Owner TAKATA CORPORATION
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