| 摘要 |
PURPOSE:To prevent dropping accident or the like from being generated by forming a communicating hole cut in concrete bed, through a wall surface lined with exterior material via jointing material on the concrete bed, and by contriving theexterior material or the like to be connected to the concrete bed with an anchor bolt. CONSTITUTION:On a wall surface lined with exterior material 6 via the jointing material 4 of mortar or the like, on concrete bed 2, the sections of crack and separation are specifically set by tapping or the like. After that, through the separation section, a communicating hole 24 to be cut in the bed 2 from the surface side of the material 6 is formed by a rotary drill device. Then, an anchor bolt 26 is inserted into the hole 24, and from the rear end side, a tapered pin 28 is driven and an engaging member 27 is widened by the pin 28, and a firmly engaged state is set, and the bed 2, the material 4, and the material 6 are integrally connected to each other. Accordingly, the generation and progress of the separation are suppressed, and dropping accident or the like can be prevented from being generated. |
