Metal holder with electrode pin, method of manufacturing the metal holder, and gas generator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-003/10
F42B-003/00
F42B-003/103
출원번호
UP-0594271
(2005-03-30)
등록번호
US-7530310
(2009-07-01)
우선권정보
JP-2004-100078(2004-03-30)
국제출원번호
PCT/JP05/006016
(2005-03-30)
§371/§102 date
20060926
(20060926)
국제공개번호
WO05/095163
(2005-10-13)
발명자
/ 주소
Hironaka, Akitoshi
Matsumura, Yasushi
Kubo, Dairi
출원인 / 주소
Nippon Kayaku Kabushiki Kaisha
대리인 / 주소
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
8
초록▼
A metal holder, and a method of producing the same, with electrode pins suitably used for a gas generator having a structure that can prevent electrode pins from being burst forth easily even when the gas generator is brought into action under high temperature. The metal holder with electrode pins i
A metal holder, and a method of producing the same, with electrode pins suitably used for a gas generator having a structure that can prevent electrode pins from being burst forth easily even when the gas generator is brought into action under high temperature. The metal holder with electrode pins includes a metal holder and at least two electrode pins for allowing passage of electrical current. Each electrode pin is larger in diameter at its head portion than at its terminal portion. Plastic members are arranged to surround a part of the respective electrode pins circumferentially. Holes for the respective electrode pins to pass through the holder are formed in the holder, and the electrode pins are fixed to the holes via the plastic members, each hole having a diameter-reduction portion at a part thereof.
대표청구항▼
The invention claimed is: 1. A metal holder with electrode pins, comprising: a metal holder and at least two electrode pins for allowing passage of electrical current, wherein each electrode pin is larger in diameter at its head portion than at its terminal portion; plastic members arranged to cont
The invention claimed is: 1. A metal holder with electrode pins, comprising: a metal holder and at least two electrode pins for allowing passage of electrical current, wherein each electrode pin is larger in diameter at its head portion than at its terminal portion; plastic members arranged to contact the respective electrode pins so that the plastic members surround a part of the respective electrode pins circumferentially, and wherein through holes for the respective electrode pins to pass through the holder are formed in the holder, and the electrode pins are fixed to the holes via the plastic members, each hole including a diameter-reduction portion at a part thereof, wherein the plastic members are sandwiched between a part of the holder corresponding to the diameter-reduction portion and the respective electrode pins in the radial direction of the respective electrode pins. 2. The metal holder with electrode pins according to claim 1, wherein the each electrode pin includes a constricted portion in a part thereof located in the hole. 3. The metal holder with electrode pins according to claim 1, wherein a material of the plastic member is a super engineering plastic. 4. The metal holder with electrode pins according to claim 1, wherein the holder includes, at its portions around the holes, pressed portions. 5. The metal holder with electrode pins according to claim 1, wherein the head portion of the each electrode pin has a diameter larger than an inner diameter of the diameter-reduction portion of the hole and smaller than a center-to-center dimension between the two electrode pins. 6. The metal holder with electrode pins according to claim 1, wherein the holder includes, at a portion thereof on the side closer to an igniter portion, a cylindrical projecting portion surrounding the igniter portion, and a firing agent filled in an inner space surrounded by the projecting portion. 7. The metal holder with electrode pins according to claim 1, wherein the holder includes, at a portion thereof on a side closer to an igniter portion, a cylindrical projecting portion surrounding the igniter portion and a cover arranged in an opening edge portion of the projecting portion, and further an enhancer agent filled in an inner space surrounded by the projecting portion. 8. The metal holder with electrode pins according to claim 1, wherein the electrode pins and the plastic members are integrally formed using an injection molding. 9. A gas generator comprising: the metal holder with electrode pins according to claim 1; a cup packed with gas generant to be burnt to generate gases; and an igniter portion, wherein the holder is joined to the cup to seal up the gas generant, and wherein the igniter portion includes a resistance element interconnecting head portions of the electrode pins and a firing agent formed at least around the resistance element. 10. The gas generator according to claim 9, wherein the cup and the holder are connected with each other by welding. 11. The gas generator according to claim 9, further comprising an enhancer agent holder, placed in the cup, for containing an enhancer agent. 12. The gas generator according to claim 11, further comprising a cap arranged to cover an outer portion of an enhancer agent holder on the side thereof closer to the gas generant. 13. The gas generator according to claim 9, further comprising an insulating member on a surface of the holder on a side thereof closer to the igniter portion. 14. The gas generator according to claim 9, wherein joining portions of the holder and an opening edge of the cup being joined are located in a surface of the holder on a side thereof closer to the igniter portion, and the joining portions are joined together by welding, by friction stir welding, or by adhesive bonding. 15. A method of producing a metal holder with electrode pins comprising: after plastic members including holes are inserted in holes formed in the metal holder, electrode pins are inserted in the holes of the plastic members, and the metal holder is pressed at portions thereof around both opening portions of the holes in a depth direction thereof so that the plastic members can be partly reduced in diameter to fix the electrode pins. 16. A method of producing a metal holder with electrode pins according to claim 15, wherein the plastic members are sandwiched between a part of the holder corresponding to a diameter-reduction portion and the respective electrode pins in the radial direction of the respective electrode pins. 17. A method of producing a metal holder with electrode pins according to claim 16, wherein through holes for the respective electrode pins pass through the holder are formed in the holder, and the electrode pins are fixed to the holes via the plastic members, each hole including a diameter-reduction portion at a part thereof. 18. A method of producing a metal holder with electrode pins comprising: after electrode pins are inserted in holes of plastic members including holes or after the plastic members and the electrode pins are integrally formed using an injection molding, the plastic members are inserted in the holes formed in the metal holder; and the metal holder is pressed at portions thereof around both opening portions of the holes in a depth direction thereof so that the plastic members can be partly reduced in diameter to fix the electrode pins. 19. A method of producing a metal holder with electrode pins according to claim 18, wherein the plastic members are sandwiched between a part of the holder corresponding to a diameter-reduction portion and the respective electrode pins in the radial direction of the respective electrode pins. 20. A method of producing a metal holder with electrode pins according to claim 19, wherein through holes for the respective electrode pins pass through the holder are formed in the holder, and the electrode pins are fixed to the holes via the plastic members, each hole including a diameter-reduction portion at a part thereof.
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