Formation manner null of jig and floor embedding wiring taking exit for floor embedding wiring taking exit formation

摘要

PURPOSE: To form a lead out port simply and quickly in such a manner as to exactly store a cover frame and a cover by providing a wiring lead out port main body connected to an opening part formed on the upper surface part of a duct buried in a floor, and a temporary cover fitted along the axial direction of the main body in a slidable manner. ;CONSTITUTION: A pair of spring-like members 70, 70 are installed on the bottom 64 of a temporary cover 60 in such a manner as to be directed to a deck cellular 40. A wiring lead out port main body 10 is welded to an opening part formed on the upper surface part of the deck cellular 40. Subsequently, the lower side part of the temporary cover 60 is fitted to the open end part side of the main body 10. At this time, a form oil is applied to the side wall surface of the temporary cover 60. Ready-mixed concrete is placed, and the temporary cover 60 is forced into the finish surface position of the floor slab. Whereupon, the spring-like member 70 is plastic-deformed to stay at the forced-in position of the temporary cover 60. Subsequently, after hardening, concrete near the center of the temporary cover 60 is cut to bore a hole and remove the temporary cover 60. Thus, an opening part can be formed easily and quickly.;COPYRIGHT: (C)1995,JPO