| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain the connection of a cable to a communication device excellently, and to prevent damaging to the cable even at the time of the opening and closing of a cover body. SOLUTION: A housing 3, in which communication equipment is housed, is installed to the rear of a cover body 2 placed on the receiving frame 1 of the cover for the underground structure in a manner that the cover body 2 can be opened and closed while an adapter 4 connecting the communication device and a cable 55 laid in the underground structure is mounted. Holding mechanisms 3b, 3c constraining the cable 55 joined with the adapter 4 are set up onto the external surface of the housing 3, and the slipping-off of the cable is prevented by the holding mechanisms 3b, 3c.</p> |
