| 摘要 |
PURPOSE:To attach a distributing box temporarily at an accurate position by turning a temporary fixture engaged with the shape of a base installed to the circumferential section of the opening surface of the distributing box and nailed to concrete forms around the shaft of the distributing box. CONSTITUTION:A distributing box 20 is formed in an octagonal cylindrical body 21, one surface is covered with a cover 22, and a pan-shaped base 24 is mounted to an opening section 25 in the other surface. The base 24 has an outward flange 24a and a flange 24b with inward protruding sections 24c. A temporary fixture 30 as another body engaged with the opening section 25 of the base 24 is fixed temporarily to a concrete form material 50 by driving a plurality of nails 37 through the holes 24d of the protruding sections 24c. Grooves 32 extended in the circumferential direction and stepped grooves 33 are shaped to notches 31 in which the temporary fixture 30 is engaged with the protruding sections 24c, and the cylindrical body 21 is rotated around a shaft and fixed. The periphery of the cylindrical body 21 is filled with concrete (not shown), and the form material 50 is turned, and drawn in the axial direction. Accordingly, the box 20 is temporarily attached easily at an accurate position. |
