| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of the disassembly works of a working floor by installing a self-lock type clamp with a pawl to one of end sections in the longitudi nal direction of framed rectangular-shaped flooring made of a metal and mounting a clamp having no pawl and having an opening opened to a lower outside by a specific angle from a surface vertical to a floor face to the other. SOLUTION: Self-lock type clamps with movable pawls are set up at the two corners of one of the longitudinal direction of rectangular metallic flooring, in which both ends are framed by end members, and clamps 4 having no pawl and having a special shape is fitted at the two corners of the other. The clamp 4 with no pawl is formed in the hooked shape of a shape surrounding a horizontal member S as a steel pipe having an outside diameter D from an upper section, a section (a) on the inside of a front end is cut in the oblique direction in a hook section 41, a section (b) at the front end of the lower side is projected in the front end direction while being placed along a circle having the outside diameter D in a jaw section 42, and an opening having a space D is tilted by an angleθto the outside of a lower section to a surface vertical to a floor face as a whole. Accordingly, when the horizontal member S is pushed up in the opening direction displayed at the angleθ, the clamp 4 with no pawl can be detached easily.
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