| 摘要 |
<P>PROBLEM TO BE SOLVED: To construct a scaffold until a further place relatively far from a secured scaffold without installing any framework scaffold or single pipe scaffold, and to provide a scaffold which is simple and safe in a construction work. <P>SOLUTION: The extensible scaffold structure includes an extensible scaffold material and a scaffold board and a reaction force material. The extensible scaffold material is constituted of a main pipe and a support body, and the main pipe is configured to internally store the support body, and the support body is configured to slide in the main pipe. The support body is extended out of the main pipe in a state that two or more extensible scaffold materials are arranged in an almost horizontal posture and almost in parallel, and a plurality of scaffold boards are installed. This structure is vertically supported at two or more points in the main pipe. Also, the reaction force material is installed between the main pipe and an immovable object lying at the upper part so that a reaction force can be obtained from the upper part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
