| 摘要 |
PURPOSE: To fix a piping unit without increasing the diameter of mechanical anchor bolts and the number of the anchor bolts by providing a piping unit casing with a horizontal frame, the anchor bolts, in which extending sections are buried into a floor, a positioning tool, an overturning preventive frame and a fixing bolt. CONSTITUTION: Piping unit casings 1 are placed temporarily on floor faces at marking positions, where afterward driving type male screw type mechanical anchor bolts 6 are arranged, and height is adjusted by adjuster bolts 19. A screw section is inserted into the slot 13 of a positioning tool 7, a horizontal piece is placed on the floor face, and a vertical piece 11 is abutted against a horizontal frame 3. The positioning tool 7 is screwed to the screw section, and fastened. A frame 9 is stretched over the opposed horizontal frames 3, and bolts 10 are inserted into slots 14 and screwed to nuts 8. Lastly, nuts 15 are clamped, the frame 9 is pushed downwards, and the frames 3 are fixed. Consequently, allowable drawing load is made larger than a female screw type. Accordingly, the execution of works is carried out easily. |
