| 摘要 |
The multilayered heat-insulating panel is composed of a pressure-resistant top panel (1) e.g. wood chip, and of a rigid-foam panel (3) adhesively bonded on the underside thereof. The wood-chip panel (1) has a tongue (2) on one side and a corresponding groove on the opposite side, while the rigid-foam panel (3) has stud teeth (4) on the corresponding sides. This results in a toothed connection of the rigid-foam panels (3) at the butt joints when the panels are fitted together. In the longitudinal direction of the tongue-and-groove, curved milled recesses (5) are provided in the rigid-foam panel (3), on the adhesively bonded side thereof. Said milled recesses (5) cut into the rigid-foam panel (3) overlap mutually. The rigid-foam region (9) between the incisions (8, 10) of two neighbouring milled recesses (5) thus have an approximately resilient effect. Soundwaves impinging perpendicularly on the wood-chip panel (1) are interrupted throughout on an air layer produced by the milled recesses (5). The heat-insulating panel is particularly suitable for floors. <IMAGE> |
