Igniter and gas generator having the same

A technology for igniters and appliances, which is used in the production of compressed gas, weapon accessories, belt tensioners, etc., and can solve the problem that the gas generating agent cannot be ignited normally.

Inactive Publication Date: 2007-05-23
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Igniter and gas generator having the same
  • Igniter and gas generator having the same
  • Igniter and gas generator having the same

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Embodiment Construction

[0067] Hereinafter, an embodiment of an igniter, its manufacturing method, and a gas generator according to the present invention will be described with reference to the drawings.

[0068] In FIG. 1 , the igniter 4 shown in this embodiment has a plug 13 , two electrode needles 14 for conducting electricity, a resistor (bridge wire) 16 , an ignition powder 10 , and a film layer 30 covering the ignition powder 10 .

[0069] The two electrode needles 14 each have a terminal head 14a and a head 25, and are bonded and fixed while penetrating through a plug 13 molded with a thermosetting resin. As a result, since the electrode needles 14 penetrating the plug 13 are connected to the plug 13 , it is possible to suppress the entry of moisture from the outside and prevent the electrode needles 14 from being separated from the plug 13 in the event of a fire. In addition, examples of the material of the electrode needle 14 include nickel-containing alloys, iron, aluminum, copper, stainles...

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Abstract

An igniter enabling the normal ignition of a gas generating agent even if the adhered state of a firing charge to a plug is eliminated by vibration or shock and a gas generator having the igniter. The igniter comprises the plug (13), two or more electrode pins (14) passed through the plug (13) and having head parts (25), a bridge wire (16) connecting at least two electrode pins (14) among the electrode pins (14) across the head parts (25), and the firing charge (10) ignited by the bridge wire (16) energized through the electrode pins (14). The plug (13) is formed of a hardened material of a thermosetting resin composition. The electrode pins (14) allowing the bridge wire (16) to be connected to the head parts (25) thereof are passed through the plug (13) at a specified distance (A) between the head parts (25) and the plug (13), and at least the head parts (25) and the bridge wire (16) are surrounded by the firing charge (10) in the form of a solid body and fixed to the plug (13).

Description

technical field [0001] The present invention relates to an igniter used in a gas generator for functioning passenger safety protection devices such as a pre-shrinking seat belt and an air bag of an automobile, and a gas generator having the igniter. Background technique [0002] Pre-shrinking seatbelts and airbags are known as articles for protecting passengers from the impact of a car collision. These pre-shrinking seat belts and airbags protect passengers by using a large amount of gas introduced from a gas generator. In addition, the gas generator has an igniter, a gas generating agent, and the like, and the gas generating agent is ignited and burned by the flame (high-temperature gas and particles) generated by the igniter at the time of impact, and a large amount of gas is rapidly generated. [0003] As an example of the igniter used for the gas generator, there is the igniter used for the gas generator described in FIG. 14 of patent document 1. As shown in FIG. This ...

Claims

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Application Information

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IPC IPC(8): F42B3/12B60R21/26B60R22/46C06C7/00C06D5/00F42B3/103F42B3/195
CPCB60R2021/26029F42B3/103F42B3/195F42B3/124
Inventor 松村也寸志园山淳也弘中昭俊栗田和昌池田健治郎
Owner NIPPON KAYAKU CO LTD
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