| 摘要 |
<p>PURPOSE:To improve usability and workability by arranging plug members to be fitted on a plurality of conduit openings, respectively attachably to or removably from, and by fitting the plug members on the conduit openings except the openings with conduit fitted on. CONSTITUTION:A box main-body 100 is shaped with synthetic resin having a bottom, and on a side wall in the depth direction, conduit openings K1-K3 are respectively formed. When the box main-body 100 is embedded in concrete and conduits are connected to, for example, then the non-usable opening among the openings K1-K3 is closed with a plug member 200. Besides, the box main- body 100 is fitted on a concrete form and after that, even if design is modified and the fitting directions of the conduit are changed, the plug member 200 can be fitted on or removed from, and so the conduit can be fitted in the desired direction, and the unnecessary opening can be blocked with the plug member 200.</p> |
