Centering null of deck boards for engineering works

摘要

PURPOSE: To improve the workability during assembly and disassembly, ability to withstand load and safety by making square supports detachable by one-touch without using cloth board (or cloth frame), braces or clamps. CONSTITUTION: Step-shaped rungs 91 to 96 are attached to parallel two the surfaces of square members 6 of the square support 1, and step-shaped rungs 91 to 96 are attached to other two parallel surfaces with a gap 1, through which a human body can pass through, is cut out from the central part of other parallel two surfaces. Also, coupling pins 10 for attaching braces 3 to both the upper and lower ends of side rails b, c and c, d are provided. And neighboring square supports 1 are coupled together with cloth boards 12 having hooks linked to rungs 9 and braces 3 having coupling holes at both the ends. In this way, anybody is able detach the tie members by one-touch and also the ability to withstand load is obtained. And a person is safely able to move through the inside of the square members 6 from one side to the other.