| 摘要 |
PROBLEM TO BE SOLVED: To improve workability by a method wherein backplates each to be appplied to a horizontal batter and hanging pieces each to be hung on the horizontal batter are provided at both ends of a horizontal support, and the horizontal batter is interposed between the backplate and the hanging piece. SOLUTION: Two forms 1 and 1 are erected with a distance provided in between, and the distance between the forms 1 and 1 is maintained with an expandable/ contractile horizontal support 3 arranged to a horizontal batter 2 of each of the forms 1 and 1. Flat plate-like backplates 3b each to be applied to the horizontal batter 2 and hook-shaped hanging pieces 7 each to be hung on the horizontal batter 2 for traction are provided respectively at both ends of an expandalbe/contractile shaft 3a of the horizontal support 3. The hanging piece 7 is detachably attached to the backplate 3b, and the horizontal batter 2 is interposed between the backplate 3b and the hanging piece 7. When the distance between the erected forms 1 and 1 is wider than a specified distance, the shaft 3a is contracted, and thereby the hanging pieces 7 are hung on the horizontal batters 2, producing a tensile force, and the distance between the forms 1 and 1 is reduced. As a result, adjustment of distance between forms executed conventionally with chains and turnbuckles becomes unnecessary.
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