To inexpensively cope with switching between the validity and invalidity of a sterilizer including an ultraviolet ray emission lamp.
A case 87 storing the ultraviolet ray emission lamp 90 is fitted in a mounting hole 86 recessed in a ceiling surface 26A of a storing room 26, a window hole 94 is opened in a base plate 87A, and in addition, and a slide door 100 for opening and closing the window hole 94 is mounted. When a tray T containing food is stored, the slide door 100 is closed to regulate irradiation on the storing chamber 26 with ultraviolet rays from a lamp 90. When the slide door 100 is opened after the tray T is put out, ultraviolet rays from the lamp 90 are applied to the storing room 26 to thereby effectively sterilize germs floating in the storing room 26 or adhering to the wall surface. Since switching between the validity and invalidity of the sterilizer 85 is performed by opening and closing the slide door 100, an electric switching structure is not needed to inexpensively cope with switching.
TAMAKI SHIGEAKI
YAMAZAKI TAKUYA
Jiro Murakami
Keiko Mizusawa
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