| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection port having a simple structure different from a conventional structure for enabling a worker to easily perform work. SOLUTION: This inspection port 1 has an outer frame 2 and a cover body 4 closing the inside of the outer frame 2. The outer frame 2 has an inner peripheral surface 10c, and the cover body 4 has an outer peripheral surface 12b opposed to the inner peripheral surface 10c. The cover body 4 is attached with a slide plate 20 slidable in the peripheral direction of the cover body 4 between a releasing position and a lock position. The slide plate 20 has a hooking part 24 projecting toward the inner peripheral surface 10c, and the outer frame 2 has a receiving part 26 projecting toward the cover body 4. The hooking part 24 is aligned and engaged with the receiving part 26 so as to check the opening-closing movement of the cover body 4 when the slide member 20 exists in the lock position, and deviates in the peripheral direction to the receiving part 26 so as to allow the opening-closing movement of the cover body 4 when the slide member 20 exists in the releasing position. COPYRIGHT: (C)2007,JPO&INPIT
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