| 摘要 |
PURPOSE:To correspond to the cutting in a narrow space by giving the tension to a cutting wire with a wire driving machine, which can move in parallel with the side wall of a concrete building to be cut, and cutting the side wall horizontally and vertically. CONSTITUTION:Pulley groups 4a, 4b consist of first pulleys 1a, 1b and second pulleys 2a, 2b, of which peripheral part contacts with the peripheral part of each first pulleys 1a, 1b vertically or at an angle of inclination against each first pulleys 1a, 1b, and third pulleys 3a, 3b, of which peripheral part contacts with the tangent passing the peripheral part of each second pulley 2a, 2b vertically or at an angle of inclination against each second pulleys 2a, 2b. Next, the tight side 14a of a cutting wire 14 is guided by the pulley group 4a, and the loose side 14b of the cutting wire 14 is guided by the pulley group 4b. When a wire driving machine 9 is moved along a rail 8 in parallel with the front surface of an object 6 to be cut and a driving pulley 12 is rotated, the cutting wire 14 is circulated for traveling under the required tension to cut the object 6 to be cut. |
