DK148236B - SLIPPED FLOOR PLATE - Google Patents

Description

148236

The invention relates to a non-slip metal / especially aluminum floor plate provided with perforations whose edges are deformed from the plane of the plate. Such floorboards are particularly used for covering ducts or as a walkway on walkways.

It is known to provide metallic walkways or floorboards with elevations for increased slip resistance. Such plates are marketed e.g. under the designation "Rifle plate" or "Knoblade". Plates of this kind, which are manufactured by string pressing, are usually provided with longitudinal ribs which have been interrupted in a subsequent roller or milling operation. For the purpose of securing water and dirt, such plates are often further provided with holes of various shapes. It is also known to increase the slip resistance to deform the edges of punched holes by embossing. Furthermore, it is known for better water drainage to deform the edges of some of the punched holes downwards in an embossing operation.

With all these known floorboards, it is a disadvantage "that they either divert the water poorly or that the elevations needed for the slip safety, if the water drainage is good, are too far apart, thereby reducing the slip resistance, as well as creating a too rough raster which does not provides a sufficient standing surface for the foot.

It is therefore an object of the invention to provide a non-slip floor plate of the type in question, which exhibits both an increased slip resistance and a good opportunity for water flow, and which provides a sufficiently large non-slip floor surface for the foot.

This task is solved by a floor plate of the kind initially indicated by the fact that each perforation edge has sections which are deformed alternately to one side and the other in relation to the plane of the plate. With a floorboard according to the invention, the perforations can be placed in a grid of such fineness that the non-slip floor surface under the user's foot is substantially increased. Particularly favorable properties are obtained by polygonal holes where each other polygon side is deformed to one side and every other polygon side to the other side relative to the plane of the plate. In this embodiment, it is achieved that the water conductivity is evenly distributed around the polygonal hole. A homogeneous stand surface for the foot is secured by the measures specified in claim 3.

The invention is further explained in the following With reference to the drawing, wherein

FIG. 1 shows a plate according to the invention fig. 2 and 3 are sections along lines I-I and II-II of FIG. 1, and FIG. 4 shows a plate formed by a string extrusion profile.

The plate according to FIG. 1 has approximately square holes 2, the corners of which here are formed with a radius. Pairwise opposite hollow edges 3 are marked in the same direction upwards and downwards respectively. The upward cut edges of the embossings are shaded. The figure shows a particularly advantageous embodiment in which the pairwise rectangular embossings 3 at a hole 2 are rotated 90 * in relation to the same alignments 3 in the neighboring holes 2. The shape of the embossing is of minor importance in the invention, but is carried out. however, preferably semi-circular or sinusoidal.

The floor plate design according to the invention is not only suitable for rolled sheets, but can also be used in extrusion profiles, especially of aluminum. One such example is shown in FIG. 4. Here is shown a strand pressing profile 1 which, on its underside, between every two rednecks of holes 2 has ribs 4, which ensure a greater carrying capacity. By applying flange-like projections 5, the load-bearing capacity of the board can be further increased. The plate-shaped surface is provided with embossed holes 2, as seen.

The floor slab according to the invention has not only proved to be extremely non-slip, but can also be easily cleaned and also offers an aesthetically satisfying appearance which allows the use of such slabs in the architecture.