DRAIN MATERIAL DRIVING DEVICE

PROBLEM TO BE SOLVED: To vertically drive a drain material with high accuracy. SOLUTION: An oscillating frame 13 is mounted between a traveling body frame 12 and an upper frame 15, and supported in a laterally oscillating manner on the traveling body frame 12 through hydraulic cylinders 14L, 14R, and the upper frame 15 is supported in a longitudinally oscillating manner on the oscillating frame 13 through hydraulic cylinders 16L, 16R. A casing 4 is vertically movably supported on the upper frame 15, and a drain material DR is inserted into the casing. The upper frame 15 is longitudinally and laterally oscillated relative to the traveling body frame 12 by the expanding and contracting driving of the hydraulic cylinders 14L, 14R, 16L, 16R to change a vertical angle of the casing 4. Whereby the direction of the casing 4 is vertically set, and the drain material DR is vertically driven by pushing of the casing 4.