| 摘要 |
Embodiments of the present invention provide a sectional door with a door leaf movable longitudinally along a preset path between a closed and an open position, with said door leaf having a shell-like or single-wall design, with a shell bottom forming an outer boundary surface of the door leaf, and two shell edges preferably extending over the entire door leaf width in the direction of the articulating axes and protruding from the shell bottom in the direction of the space closed off thereby, with one of the shell edges having a hollow protrusion extending over the entire width of the door leaf and the other shell edge comprising a recess designed to accommodate a protrusion of an adjacent door leaf element, and with an insulating element, being inserted into the shell-like door leaf element, with the insulating element having a flange capable of being inserted into the hollow protrusion of the door leaf element and/or an edge profile on or in an edge of an insulating element, with said edge profile being designed to accommodate at least a part of the recess of the door leaf element which extends in the thickness direction of the door leaf element.
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