| 摘要 |
A drive device for a door (1) sliding on a machine frame, between an open position and a closed position in which it seals an opening of a compartment (W), includes a pair of belt drives (3, 4, 5, 8) arranged on opposite sides of the door (1) and connected thereto via mounting contrivances which allow the door (1) also a shift in the direction (X) orthogonal to its sliding plane, each mounting contrivance comprising a trolley (2) integral with the belt (3) and carrying the door (1) through two articulated parallelograms (9) whose outermost vertex (9a) is rotatably fixed on the trolley (2) and whose innermost vertex (9b) is rotatably fixed on the door (1) and engages a V-shaped profile (10) formed on the trolley (2) with a symmetrical arrangement with respect to the direction (X) orthogonal to the sliding plane, the device further comprising springs (11) which pull outwards the innermost vertex (9b). |
