| 摘要 |
<p>PURPOSE:To facilitate the alteration of disposition by bending the base of a temporarily clamping piece provided outside a power distribution tube inserted fixedly to the through hole of a wall to the inside of the tube, and releasing the temporary clamping from the end of the tube through the interior of the tube. CONSTITUTION:Tubes 10, 11 for forming a power distribution tube are inserted to a through hole formed at a wall, and wires 5 are connected to a plug socket 6. The tubes 10, 11 are connected through a fire resistance partition plate 12. A pair of temporarily clamping units 33 are mounted at the opposite positions in a circumferential direction outside the tube 10, elastically connected to the inner periphery of a through hole 2, and the tube 10 is positioned. The base 30 of the units 33 is bent inside the tube 10, and a connecting piece 33c is secured with a screw 34 to a hole 31. When the clamping is released, a screwdriver is inserted from the upper end of the tube 10 inside the tube, and the screw 34 is unscrewed. Thus, the tube 10 can be easily removed, and the alteration of the disposition of a plug socket 6 can be facilitated.</p> |
