To improve the operability, by providing the second working machine treating excavated soil by an excavator on a slewing base supporting the excavator, in almost the same direction with the excavator.
A box-structure slewing base 3 is rotatably mounted on a frame 2 of a crawler-mounted traveling device 1. And a driver's cab 6, a control device 7, an engine, a hydraulic system, and a cover 8 containing these devices are mounted on the slewing base 3. And an excavating machine like a backhoe 5 is installed on the slewing base 3. And further, the second working machine like a loading shovel 9 is equipped on the slewing base 3 in nearly the same direction with the excavating direction of the backhoe 5 so that the bucket 10 is transferable back and forth by a driving structure like a cylinder device or a rack-pinion structure. In this way, the excavated soil can be immediately treatea for leveling of ground, removing of ground, etc., by the loading shovel 9 and hence, the operability can be improved.
YOSHINADA YUTAKA
OKAMURA KENJI
OJI NARUTOSHI
