JPS5730526A - Filtering device and its manufacture - Google Patents

Filtering device and its manufacture

Info

Publication number
JPS5730526A
JPS5730526A JP10391580A JP10391580A JPS5730526A JP S5730526 A JPS5730526 A JP S5730526A JP 10391580 A JP10391580 A JP 10391580A JP 10391580 A JP10391580 A JP 10391580A JP S5730526 A JPS5730526 A JP S5730526A
Authority
JP
Japan
Prior art keywords
filter
filter medium
whole surface
rectangularly
molds
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
JP10391580A
Other languages
Japanese (ja)
Inventor
Yasuo Muranaka
Fumio Nakamura
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP10391580A priority Critical patent/JPS5730526A/en
Publication of JPS5730526A publication Critical patent/JPS5730526A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2016/00—Articles with corrugations or pleats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE: To keep the uniform flow of air throughout the whole surface of a filter medium throughout the whole surface of the filter medium at all times in order to enable the filter to hold good dust-collecting property for a long length of time by forming the filter medium into a rectangularly corrugated shape.
CONSTITUTION: A filter 8 of a rectangularly folded form is put between upper and lower molds A and B, and a heated synthetic resin is flowed through gates C and D into the molds. In this case, since both end portions of the flat top 8C of the filter 8 are put between the projection F of the upper mold A and the lower mold B, no winding of the filter 8 occurs. Thus, since no warping of the side portion 8b of the filter 8 due to air flow occurs because a filter frame 9 and a reinforcement 10 are integrally formed, and also since the adjacent side portions 8b are positioned at a preset interval, the effective filtering surface area of the filter 8 can be held for a long period of time.
COPYRIGHT: (C)1982,JPO&Japio
JP10391580A 1980-07-29 1980-07-29 Filtering device and its manufacture Pending JPS5730526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10391580A JPS5730526A (en) 1980-07-29 1980-07-29 Filtering device and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10391580A JPS5730526A (en) 1980-07-29 1980-07-29 Filtering device and its manufacture

Publications (1)

Publication Number Publication Date
JPS5730526A true JPS5730526A (en) 1982-02-18

Family

ID=14366714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10391580A Pending JPS5730526A (en) 1980-07-29 1980-07-29 Filtering device and its manufacture

Country Status (1)

Country Link
JP (1) JPS5730526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416570B2 (en) * 2000-03-02 2002-07-09 Toyo Boseki Kabushiki Kaisha Integrally molded type filter unit and manufacture of the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416570B2 (en) * 2000-03-02 2002-07-09 Toyo Boseki Kabushiki Kaisha Integrally molded type filter unit and manufacture of the same

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