| 摘要 |
PROBLEM TO BE SOLVED: To provide a case for a doorphone slave unit with a camera having excellent waterproof performance that is provided with an image pickup means that can pick up a video image over a wide range. SOLUTION: An opening h2 is formed from a front side S2a of a slave unit main body case 2 to an upper side face S2b, a frame rib R4 is formed to a place surrounding the opening h2 of the slave unit main body case 2 at a rear side of a cover body 4, a rib receiving part J2 receiving the frame rib R4 provided on the rear side of the cover body 4 is formed around the opening h2 of the slave unit main body case 2, joining faces j1, j2, j3 and j4 being upper faces of the rib R4 provided to the rear side of the cover body 4 are unidirectionally pressed into contact with joining faces j5, j6, j7 and j8 of the rib receiving part J2 provided around the opening h2 of the slave unit main body case 2, and the joining faces j1, j2, j3 and j4 of the rib R4 provided to the rear side of the cover body 4 and the joining faces j5, j6, j7 and j8 of the rib receiving part J2 of the slave unit main body case 2 are welded.
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