| 摘要 |
<p>The device (1) has a connecting rod (11) provided in center (10) of a geometrical metal cross (9) whose axle (12) points along z-direction. Driving motors (26-29) and rotatably driven cleaning brushes (30-33) are arranged at free ends (22-25) of vertical and horizontal metal arms (14-17) of the metal cross. The cleaning brushes are driven by the driving motors, where the device is arranged at a telescope-like, extendable sliding arm. The vertical and horizontal metal arms are continuously adjustable.</p> |
