| 摘要 |
<p>The invention relates to a device for positioning an element (2) with respect to at least two reference points (4a, 4c), in which said device (1) acts upon a working point on the element (2) to be positioned and comprises a positioning arm (5) attached to a fixed hinging point (7) with respect to said reference points (4a, 4c), comprising two mutually hinged parts (6a, 6b) allowing a movement of said element (2) to each reference point (4a, 4c). The invention relates further to a device for positioning at least one offset plate (2) on a positioning table (3) of a pre-press equipment, comprising means (5) to move the offset plate (2) in a plane parallel to the positioning table (3) to at least one reference point (4a) on the positioning table (3), in which said means (5) act upon a working point situated in the supporting plane of the offset plate (2) on the positioning table (3).</p> |
