| 摘要 |
A lift door drive device (2) for opening and closing at least one cage door leaf (5) and a corresponding shaft door leaf comprises a coupling mechanism (14), which is mounted at the cage door leaf (5) of a lift cage (1), for transmitting the movement of the cage door leaf (5) to the shaft door leaf with two parallel entraining runners (15), which are mounted on pivotable adjusting elements (17.1, 17.2) and are adjustable in their mutual spacing, as well as a drive unit (18) which transmits closing and opening movements to the cage door leaf by way of a drive means (9), wherein the drive means (9) leads the entraining runners (15) to a coupling element (18) at the shaft door leaf before the start of the opening movement and moves them away from the coupling element (18) after the end of the closing movement, wherein the pivotable adjusting elements (17.1, 17.2) during an opening or closing movement of the door leaf are blocked by means of a catch (25), which acts in both pivot directions, in a setting in which the entraining runners are led up to the coupling element.
|
