| 摘要 |
<p>This invention concerns a method for the displacement of a vertically displaceable motor driven door leaf 1 in an opening 2 in a building 3. The method comprises that a first line drum 4 comprising a first axis of rotation 5 that is caused to interact with a first line 6 that has been attached to the line drum 4 and the door leaf 1, a second line drum 7 comprising a second axis of rotation 8 that is caused to interact with a second line 9 that has been attached to the line drum 7 and the door leaf 1 [sic, syntax]. A force of rotation is transferred from a motor unit 10 to the axis of rotation 5 and 8 of the relevant line drum through a power-transfer unit 11 whereby the line drums 4 and 7 are rotated and the first line 6 is rolled onto or rolled off from the first line drum 5 [sic, "4"?] and the second line 9 is rolled onto or rolled off from the second line drum 7, whereby the door leaf 1 is displaced upwards or downwards. The power transfer unit 11 is caused to act on at least one axis of rotation 5 or 8 since two cogs are always in interaction with each other in a gear system 12 comprised within the power-transfer unit 11, and it acts on at least one axis of rotation 5 or 8. At least this axis of rotation 5 or 8 is rotated in this case, and a transmission unit 13 is caused to interact with the first axis of rotation 5 and the second axis of rotation 8, and ensures that the rotation of the axis of rotation 5 or 8 that is caused to rotate with the aid of the power-transfer unit 11 is transferred to the second axis of rotation 5 or 8. The invention concerns also an arrangement 24, a doorway 29, a building 3 and a lumber drying facility 30.</p> |
