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JPS57130522A - Filter device - Google Patents

Filter device

Info

Publication number
JPS57130522A
JPS57130522A JP1569981A JP1569981A JPS57130522A JP S57130522 A JPS57130522 A JP S57130522A JP 1569981 A JP1569981 A JP 1569981A JP 1569981 A JP1569981 A JP 1569981A JP S57130522 A JPS57130522 A JP S57130522A
Authority
JP
Japan
Prior art keywords
filter
rollers
filter device
fusion
hardened parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1569981A
Other languages
Japanese (ja)
Inventor
Hidetoshi Sakurai
Akiyoshi Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1569981A priority Critical patent/JPS57130522A/en
Publication of JPS57130522A publication Critical patent/JPS57130522A/en
Pending legal-status Critical Current

Links

Landscapes

  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE: To improve the dust-removing property of a filter device for use in a vacuum cleaner or the like, by forming fusion-hardened parts at the creases of a wave-form filter made of a thermoplastic fiber.
CONSTITUTION: A filter sheet 76 is passed between two rollers 74, 75 provided with a plurality of projections 73 at their peripheries. Since the rollers 74, 75 are heated, a thermoplastic fiber (polyester fiber) is melted and fusion-hardened parts 72 are formed. The filter sheet 76 is then formed into a wave shape to form a filtering part 39, and attached to a main filter 38.
COPYRIGHT: (C)1982,JPO&Japio
JP1569981A 1981-02-06 1981-02-06 Filter device Pending JPS57130522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1569981A JPS57130522A (en) 1981-02-06 1981-02-06 Filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1569981A JPS57130522A (en) 1981-02-06 1981-02-06 Filter device

Publications (1)

Publication Number Publication Date
JPS57130522A true JPS57130522A (en) 1982-08-13

Family

ID=11896011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1569981A Pending JPS57130522A (en) 1981-02-06 1981-02-06 Filter device

Country Status (1)

Country Link
JP (1) JPS57130522A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2413100A (en) * 2004-04-13 2005-10-19 Samsung Kwangju Electronics Co Vacuum cleaner filter assembly
JP2008264625A (en) * 2007-04-17 2008-11-06 Toyota Boshoku Corp Filter medium and its creasing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2413100A (en) * 2004-04-13 2005-10-19 Samsung Kwangju Electronics Co Vacuum cleaner filter assembly
JP2008264625A (en) * 2007-04-17 2008-11-06 Toyota Boshoku Corp Filter medium and its creasing method

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