ADJUSTABLE TELESCOPIC LEVER APPARATUS FOR LIFTING PLANE ELEMENTS, PREFERABLY WALL AND/OR COVER PANELS AND ARRANGEMENT FOR FIXING TWO SLIDABLE ELEMENTS OF POLYGONAL CROSS-SECTION

摘要

Apparatus for lifting of plane elements, preferably wall and/or cover panels, comprising foot means (2), vertical lifting means (25), upper support means (49) carrying the plane element (82), in given case an angle-adjusting device (59) inserted in between the vertical lifting means (25) and the upper support means (49). The foot means (2) as well as the support means (49) are made of one or more longitudinal beams (3) and of cross-members (13) being fastened to the longitudinal beams (3). The vertical lifting means (25) can be fastened to the longitudinal beam (3; 50) by a fixing unit (23; 67) at one of several points along the beam,- and the longitudinal beams (3; 50) can be fixed to the cross-member (13; 53) by a fixing unit (17) at one of several points on the cross-member (13; 53).