| 摘要 |
PURPOSE:To provide good construction property by eliminating accurate marking of insert metal fitting fixing position for form for ceiling slab and to cope easily in case the design if mounting position of pipes is changed after concrete of ceiling slab is placed when installation pipes are mounted between ceiling slab and ceiling plate. CONSTITUTION:A plural number of straight rails 4 which have a groove 4a opening downward and wide in the inner part are provided in parallel, keeping adequate space mutually on the bottom face of ceiling slab and obliquely for beams 2a, 2b, 2c. A plural number of support members 5 which can be changed over between the condition where they are engaged with the groove and the condition where they are disengaged with it are supported on the straight rails slidably, and installation pipes are supported by the support members which are provided at the intersection of the straight rails and pipes A, B, C, D. |
