| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of a gap between a cover body and a base body, especially a gap in conspicuous side and to easily and successively install buried interphones upward/downward/rightward/leftward. SOLUTION: The buried interphone is constituted of a base body 1 where a printed board 11, a display member 12, a speaker 13 and other electric circuit parts are housed and of a cover body 2, and an operation face 21 of the cover body 2 is buried in and fixed to a wall so that it is exposed to a wall surface. Screw reception pats 18 are formed on both sides 17a of a frame part 17 formed at the peripheral edge of the base body 1 toward a front side. A restrain hole part 19 is formed on one of adjacent sides 17b abutted on the upper/lower parts of both sides 17a. Screw holes 22 made to pass through positions corresponding to the screw reception parts 18 of the base body 1 toward the front side are formed at the peripheral edge of the cover body 2. A restrained pawl 24 which can be restrained to the restrain hole part 19 is formed in a position corresponding to the restrain hole part 19. The base body 1 and the cover body 2 are fixed by three peripheral edge sides.
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