| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete slab construction tool, easy in manufacture, and capable of inexpensively making a highly accurate object.SOLUTION: A construction tool for forming a concrete slab projecting to the outside more than a beam 3 closely adjacent to an outer wall 3 on the beam 3, comprises an expansion mechanism part 6 for installing both flanges 3A and 3B of H-shaped steel 3 constituting the beam 3 on the inside and an arm part 7 for supporting a concrete placing surface 4 extending in the lateral direction from the expansion mechanism part 6 and provided thereon, and the arm part 7 is formed in a tubular shape having planes 15 and 16 above and below, and the expansion mechanism part 6 is joined to the lower side plane 16 of the arm part 7. Since there is no need to process a joining part roundly unlike the prior art, complicated workmanship is not required so that time and effort are saved. In addition, the defective rate is reduced by insuring accuracy without requiring skill in joining work. |
