| 摘要 |
A device for use in roof installation of objects consisting of a stand with stand feet (10) and an upright (11) raised from this and a two-armed lever (15, 16) pivotally hinged around a horizontal axis in then upright's (11) upper section. The one lever arm (15) supports an attachment (18) at its outer edge. This lever arm is constantly kept in an unaltered direction in relation to the upright via a parallel control mechanism (20-22). The lever (15, 16) can be locked in different swivel positions relative to the upright (11). The attachment (18) has devices (24, 25) for receiving and supporting a lifting yoke (19) that can be raised or lowered via the lever. In addition, there are devices (25-27) for mutual vertical fine adjustment of the attachment (18) and the lifting yoke (19). In order to install objects, the lifting yoke (19) is lowered to a position where it can be reached without a ladder; the object is placed on the lifting yoke and is roughly adjusted relative to the installation site by movement of the stand (10, 11) and raising of the lifting yoke (19) and subsequent locking of the lever (15, 16). The installation is concluded from a staircase or similar after fine adjustment of the object using at least one of the following measures: movement of the stand (10, 11), turning the lifting yoke (19) and fine adjustment of the height via the aforementioned devices (25-27) for vertical fine adjustment.<IMAGE> |
