| 摘要 |
The invention relates to a multi-purpose working device, in particular, for producing flat surfaces. Said working device comprises a rear frame, a front frame, a central part which connects the rear frame to the front frame, and a tool-maintaining device which is connected to the central part by means of an adjusting system, such that said tool-maintaining device can pivot in an essentially perpendicular manner in relation to the longitudinal axis and essentially parallel to the base counter to the central part.The rear frame and the front frame comprise wheels. The central part comprises at least one stationary part and another part which can be displaced counter thereto, such that the displaceable part can be displaced, essentially, in the longitudinal direction in relation to the stationary part. The front frame comprises a front wheel which can rotate about an angle range of at least 120 degrees, preferably at least 180 degrees, a hydraulic control which acts upon the front wheel for directional control, and a hydraulic drive which is used to drive the front wheel.
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