| 摘要 |
PROBLEM TO BE SOLVED: To easily install a waterproof pan or the like by providing a support- fixing recess in the upper surface of the support receiving plate of the waterproof pan or the like. SOLUTION: An annular projection 11 is raised by sheeting at almost the center of the upper surface of an almost square support receiving plate 1 made by a steel plate, to provide a support-fixing recess 12. For construction work, the support receiving plate 1 is placed on the concrete foundation of a bathroom, and the boltlike support of a waterproof pan is inserted into the recess 12 in the support receiving plate 1 to secure the waterproof pan to the concrete foundation. Thus the lower end of the support of the waterproof pan or the like can be easily held in place without the need for the troublesome work of aligning tapped holes or attaching screws, etc. When the support-fixing recess 12 is provided in a position deviating from the center of the support receiving plate 1, the position of the recess 12 can be adjusted appropriately by rotating the support receiving plate 1. |
