| 摘要 |
PURPOSE:To simplify the attaching or detaching operation of a friction cutter for a pile by fitting and screwing the inside of the upper end of the friction cutter into a reinforcing band provided to the periphery of the tip of a pile. CONSTITUTION:A friction cutter 1 is fitted into a seat plate 5 fixed to the tip of a pile 4, its fitting piece 2 is contacted with the seat plate 5, and under the condition that the threaded hole 6 of the seat plate 5 is matched with the threaded hole 3 of the fitting piece 2, the inside of the upper end of the friction cutter 1 is fitted into a reinforcing band 7 provided to the pile 4. A screw tool 8, e.g., bolt, etc., is screwed into the threaded holes 3 and 6 to attach the friction cutter 1 to the pile 4. |
