PEEPHOLE, SNOUT HAVING THE SAME, AND METHOD FOR SUPPRESSING FOREIGN MATTER ADHESION TO PEEPHOLE

To provide: a peephole capable of suppressing foreign matter adhesion to a window part while preventing a view from the window part from being interrupted; a snout having the same; and method for preventing fumes from adhering to the peephole.SOLUTION: A peephole 7 for checking the inside of a housi...

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Bibliographische Detailangaben
Hauptverfasser:	AIHARA CHIHIRO, KAKU YOSHIHIKO, YASUFUKU YUSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	To provide: a peephole capable of suppressing foreign matter adhesion to a window part while preventing a view from the window part from being interrupted; a snout having the same; and method for preventing fumes from adhering to the peephole.SOLUTION: A peephole 7 for checking the inside of a housing 5 includes a window part 8; a header 9; a cylindrical spacer part 10 for connecting the header 9 with the housing 5 at a preset interval; an aperture part 11 provided between the header 9 and the spacer part 10 and having an inner diameter smaller than that of the spacer part 10; and a supply port for supplying gas having a pressure higher than that of the inside of the housing 5 to the header 9.SELECTED DRAWING: Figure 3 【課題】窓部からの視界が遮られてしまうことを抑制しつつ、窓部に対する異物の付着を抑制することのできる覗き窓、覗き窓付きスナウト、及び覗き窓のヒューム付着抑制方法を提供する。【解決手段】窓部８とヘッダー部９とを備えており、筐体５の内部を確認する覗き窓７であって、ヘッダー部９と筐体５とを予め設定された間隔をあけて連通する筒状のスペーサー部１０と、ヘッダー部９とスペーサー部１０との間に設けられており、スペーサー部１０の内径よりも小さい内径の絞り部１１と、ヘッダー部９に筐体５の内部の圧力よりも高い圧力のガスを供給する供給口とを備えている。【選択図】図３