| 摘要 |
<p>The invention refers to a multi-purpose working device (100), in particular, for producing flat surfaces, comprising a rear frame (200), a front frame (300), a central frame (400) connecting the rear to the front frame, whereas the central frame comprises at least one fixed part (410), being connected to the rear frame such that it is pivotable with respect to the rear frame around an axis, and a further part (420), being movable against this fixed part, so that the further part is mainly movable along the longitudinal axis against the fixed part in an adjustable way, preferably by hydraulic control means, whereas the front frame comprises one wheel (350) which is self driven, preferably by a hydrostatic drive (360), and whereas the multi purpose working device comprises a tool holder (500), connected by connection means (550) and controlled by control means (560) with the fixed part of the central frame, preferably for accommodating a shield (580), so that the tool holder is pivotable mainly perpendicular to the longitudinal axis and mainly parallel to the surface against the central part and is, in addition, movable to the side via a moving device, whereas the rear wheels (250) are driven by a hydraulic, preferably a hydrostatic, drive also so that they are not friction locked to each other via a fixed axis.</p> |
