[특허]Filtration member for inflator and method of manufacturing the same

Chuo Hatsujo Kabushiki Kaisha

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Filtration member for inflator and method of manufacturing the same

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-039/10 B60R-021/26
미국특허분류(USC)	055/525; 055/487; 055/DIG.5; 055/385.3; 280/740; 280/742
출원번호	US-0596524 (2005-01-27)
등록번호	US-7452397 (2008-11-18)
우선권정보	JP-2004-021815(2004-01-29)
국제출원번호	PCT/JP05/001062 (2005-01-27)
§371/§102 date	20060615 (20060615)
국제공개번호	WO05/073036 (2005-08-11)
발명자 / 주소	Hirata,Yuichi
출원인 / 주소	Chuo Hatsujo Kabushiki Kaisha
대리인 / 주소	Akerman Senterfitt
인용정보	피인용 횟수 : 4 인용 특허 : 12

초록
▼

A filter (15) for an inflator, comprising a cylindrical body (15a) formed by winding wires (16) therearound. The cylindrical body (15a) further comprises an inner peripheral part (21) and an outer peripheral part (22) covering the outer peripheral surface of the inner peripheral part (21). The inner peripheral part (21) is formed by radially stacking a plurality of first pattern layers (18a) thereon. The outer peripheral part (22) is formed by radially stacking one or more second pattern layers (18a) on the outer peripheral surface of the inner peripher...

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청구항
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The invention claimed is: 1. An inflator filter member for filtering and cooling gas by passing the gas therethrough, the inflator filter member comprising: wire wound into a cylindrical body, the cylindrical body including a cylindrical inner circumferential portion having an outer circumferential surface, and a cylindrical outer circumferential portion covering an outer circumferential surface of the inner circumferential portion; the inner circumferential portion being formed of a superimposition of a plurality of first pattern layers in the radial direction, and the outer circumferential portion being formed of a superimposition of one or more second pattern layers in the radial direction on the outer circumferential surface of the inner circumferential portion; and the first pattern layers and the second pattern layers each being formed from the wire to have a mesh, with the mesh of each second pattern layer being smaller than the mesh of each first pattern layer, wherein a sheet filter member is arranged to cover the outer circumferential surface of the inner circumferential portion, and the outer circumferential portion is arranged to cover an outer circumferential surface of the sheet filter member, with the sheet filter member having pores that are finer than the mesh of each of the first pattern layers. 2. The inflator filter member according to claim 1, wherein in each of the second pattern layers, a gap between adjacent turns of the wire is 1 mm or less. 3. The inflator filter member according to claim 1, wherein the wire in each of the second pattern layers has a density that is greater than that of the wire in each of the first pattern layers. 4. The inflator filter member according to claim 3 wherein the inner circumferential portion has a bulk specific gravity of 4.5 g/cm3 or less. 5. The inflator filter member according to claim 1, wherein the outer circumferential portion has a thickness in the radial direction that is less than or equal to the thickness of the inner circumferential portion in the radial direction. 6. The inflator filter member according to claim 1, wherein the outer circumferential portion has a thickness in the radial direction that is one to ten times the thickness of the wire. 7. An inflator filter member for filtering and cooling gas by passing the gas therethrough, the inflator filter member comprising: wire wound into a cylindrical body, the cylindrical body including a cylindrical inner circumferential portion having an outer circumferential surface, and a cylindrical outer circumferential portion covering an outer circumferential surface of the inner circumferential portion; the inner circumferential portion being formed of a superimposition of a plurality of first pattern layers in the radial direction, and the outer circumferential portion beina formed of a superimposition of one or more second pattern layers in the radial direction on the outer circumferential surface of the inner circumferential portion; and the first pattern layers and the second pattern layers each being formed from the wire to have a mesh with the mesh of each second pattern layer being smaller than the mesh of each first pattern layer, wherein the cylindrical body includes an adjustment portion formed by part of the wire and extending in a circumferential direction of the cylindrical body. 8. The inflator filter member according to claim 7, wherein the wire in each of the second pattern layers has a density that is greater than that of the wire in each of the first pattern layers. 9. The inflator filter member according to claim 7, wherein the outer circumferential portion has a thickness in the radial direction that is less than or equal to the thickness of the inner circumferential portion in the radial direction. 10. A method for manufacturing an inflator filter member for filtering and cooling gas by passing the gas therethrough, the method comprising: winding a wire around an outer circumferential surface of a shaft member to form a first pattern layer having a mesh on the outer circumferential surface of the shaft member and superimposing a plurality of the first pattern layers in the radial direction of the shaft member to form an inner circumferential portion; and winding the wire around the outer circumferential surface of the inner circumferential portion to superimpose on the outer circumferential surface of the inner circumferential portion a second pattern layer having a mesh that is smaller than the mesh of each first pattern layer; and rolling a sheet filter member having pores that are finer than the mesh of the first pattern layers around the outer circumferential surface of the inner circumferential portion and then winding the wire wound around an outer circumferential surface of the sheet filter member, in which said rolling is performed after said winding a wire around an outer circumferential surface of the shaft member and before said winding the wire around the outer circumferential surface of the inner circumferential portion. 11. The method according to claim 10, wherein the wire is wound so that the outer circumferential portion has a thickness in a radial direction that is equal to or less than the thickness of the inner circumferential portion in the radial direction. 12. A method for manufacturing an inflator filter member for filtering and cooling gas by passing the gas therethrough, the method comprising: winding a wire wound around an outer circumferential surface of a shaft member to form a first pattern layer having a mesh on the outer circumferential surface of the shaft member and superimposing a plurality of the first pattern layers in the radial direction of the shaft member to form an inner circumferential portion; winding the wire around the outer circumferential surface of the inner circumferential portion to superimpose on the outer circumferential surface of the inner circumferential portion a second pattern layer in which the wire has a density that is greater than that of the wire in the first pattern layer; and rolling a sheet filter member having pores that are finer than the mesh of the first pattern layers around the outer circumferential surface of the inner circumferential portion and then winding the wire wound around an outer circumferential surface of the sheet filter member, in which said rolling is performed after said winding a wire around an outer circumferential surface of the shaft member and before said winding the wire around the outer circumferential surface of the inner circumferential portion. 13. The method according to claim 12, wherein the wire is wound so that the outer circumferential portion has a thickness in a radial direction that is equal to or less than the thickness of the inner circumferential portion in the radial direction. 14. The manufacturing method for the inflator filter member according to claim 13, further comprising rolling a sheet filter member having pores that are finer than the mesh of the first pattern layers around the outer circumferential surface of the inner circumferential portion and then winding the wire wound around an outer circumferential surface of the sheet filter member, in which said rolling is performed after said winding a wire around an outer circumferential surface of a shaft member and before said winding the wire-around the outer circumferential surface of the inner circumferential portion. 15. The method for manufacturing the inflator filter member according to claim 13, wherein at least one of said winding the wire includes winding the wire in a circumferential direction of the cylindrical body to form an adjustment portion for adjusting an amount of overlap of the pattern layers that are adjacent in the radial direction of the shaft member. 16. The manufacturing method for the inflator filter member according to claim 12, further comprising rolling a sheet filter member having pores that are finer than the mesh of the first pattern layers around the outer circumferential surface of the inner circumferential portion and then winding the wire wound around an outer circumferential surface of the sheet filter member, in which said rolling is performed after said winding a wire around an outer circumferential surface of a shaft member and before said winding the wire around the outer circumferential surface of the inner circumferential portion. 17. The method for manufacturing the inflator filter member according to claim 12, wherein at least one of said winding the wire includes winding the wire in a circumferential direction of the cylindrical body to form an adjustment portion for adjusting an amount of overlap of the pattern layers that are adjacent in the radial direction of the shaft member. 18. A method for manufacturing an inflator filter member for filtering and cooling gas by passing the gas therethrough, the method comprising: winding a wire around an outer circumferential surface of a shaft member to form a first pattern layer having a mesh and superimposing a plurality of the first pattern layers in the radial direction of the shaft member to form an inner circumferential portion; winding the wire around the outer circumferential surface of the inner circumferential portion to superimpose on the outer circumferential surface of the inner circumferential portion a second pattern layer having a mesh that is smaller than the mesh of the first pattern layer; and wherein at least one of said winging the wire includes winding the wire in a circumferential direction of the cylindrical body to form an adjustment portion for adjusting an amount of overlap of the pattern layers that are adjacent in the radial direction of the shaft member. 19. A method for manufacturing an inflator filter member for filtering and cooling gas by passing the gas therethrough, the method comprising: winding a wire wound around an outer circumferential surface of a shaft member to form a first pattern layer having a mesh an the outer circumferential surface of the shaft member and superimposing a plurality of the first pattern layers in the radial direction of the shaft member to form an inner circumferential portion; winding the wire around the outer circumferential surface of the inner circumferential portion to superimpose on the outer circumferential surface of the inner circumferential portion a second pattern layer in which the wire has a density that is greater than that of the wire in the first pattern layer; and wherein at least one of said winding the wire includes winding the wire in a circumferential direction of the cylindrical body to form an adjustment portion for adjusting an amount of overlap of the pattern layers that are adjacentin the radial direction of the shaft member.

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이 특허를 인용한 특허 피인용횟수: 4

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Filtration member for inflator and method of manufacturing the same

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이 특허에 인용된 특허 (12)

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Filtration member for inflator and method of manufacturing the same

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이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 4

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IPC 상세정보(version : 201201)

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