| 摘要 |
Polygonal panel (1) for a wall or ceiling cladding of the type in which certain longitudinal edges of the panels rest on supporting devices (13) or are wedged in by the latter. The panel (1) has a metal front plate (2), a metal rear plate (3) and a core (4) joined thereto, e.g. by adhesive, composed preferably of lightweight, e.g. fibre, material having non-flammable or fire-retarding and/or sound-absorbing properties. The front plate (2) is formed with at least two longitudinal side flanges (5) which are bent over or turned over towards the rear of the panel (1), at least partly to enclose the core (4) at at least two longitudinal sides. The flanges (5) are provided with adjoining free edge parts (6) bent over or turned over outwards at an angle. The free edge portions (6) are completely overlapped by edge parts (8) of the rear plate (3) which extend beyond the core (4), the thickness of the core (4) and the form and the shape of the longitudinal edges (5) and the edge portions (6) being matched to each other in a manner such that no direct contact exists between rear plate (3) and front plate (2). |
