JPH02126666U - - Google Patents

Info

Publication number
JPH02126666U
JPH02126666U JP11211588U JP11211588U JPH02126666U JP H02126666 U JPH02126666 U JP H02126666U JP 11211588 U JP11211588 U JP 11211588U JP 11211588 U JP11211588 U JP 11211588U JP H02126666 U JPH02126666 U JP H02126666U
Authority
JP
Japan
Prior art keywords
material sheet
filter material
shaped notches
flat filter
appropriate
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
JP11211588U
Other languages
English (en)
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 filed Critical
Priority to JP11211588U priority Critical patent/JPH02126666U/ja
Publication of JPH02126666U publication Critical patent/JPH02126666U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は平板状ろ過材厚材料シートから所要の
形状に打抜いた本考案に係るろ過材1の正面図、
第2図は第1図のろ過材1を立体形に組立ててな
る立体形フイルタの正面図、第3図は第2図の
−線切断面図、第4図は第2図の右側面図、第
5図は第2図の立体形フイルタを防塵マスクに取
付けた状態を示す正面図、第6図は第5図の−
線縦断側面図である。 1……平板状ろ過材シート、2……V型切欠、
3……結合片、4……立体フイルタ、5……マス
ク本体、6……吸気弁、7……排気弁、8……位
置決めピン。

Claims (1)

    【実用新案登録請求の範囲】
  1. 所要の形状を有する平板状ろ過材シートの周縁
    部の一箇所又は複数箇所に適宜のV型切欠を形成
    し、該V型切欠の両切欠縁を突き合わせ又は重ね
    合わせにして適宜の手段により結合して、平板状
    ろ過材シートを湾曲立体形にしてなる防塵マスク
    用フイルタ。
JP11211588U 1988-08-29 1988-08-29 Pending JPH02126666U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11211588U JPH02126666U (ja) 1988-08-29 1988-08-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11211588U JPH02126666U (ja) 1988-08-29 1988-08-29

Publications (1)

Publication Number Publication Date
JPH02126666U true JPH02126666U (ja) 1990-10-18

Family

ID=31660568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11211588U Pending JPH02126666U (ja) 1988-08-29 1988-08-29

Country Status (1)

Country Link
JP (1) JPH02126666U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137739A1 (ko) * 2014-03-13 2015-09-17 정정대 방진 마스크

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020496B1 (ja) * 1970-07-28 1975-07-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020496B1 (ja) * 1970-07-28 1975-07-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137739A1 (ko) * 2014-03-13 2015-09-17 정정대 방진 마스크

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