| 摘要 |
<p>The invention relates to a device for suspending, opening and closing a balanced door, said device comprising a lever (7) between a door (1) and an upright (6), pivotally bearing-mounted to both of them, which forces the door to turn to open and closed positions while the door moves in the direction of its plane. Centrally in the top edge of the door (1) is mounted a pivot bearing (2), which has a vertical axle (2a) around which the door turns. The pivot bearing (2) is fastened to a suspension cradle (3) which is capable of moving along a horizontal track (4), the suspension cradle (3) being adapted to be moved by means of a drive mechanism (5) back and forth along the horizontal track (4). Said lever (7) comprises a toggle, which has a relative leverage of its lever arms selected in such a way that the toggle forces the door to swing to open and closed positions in response to said reciprocating movement.</p> |
