DE20107662U1 - Flooring for so-called room cells - Google Patents

Description

(18 640)

Floor covering for so-called room cells

The innovation relates to a floor covering for walkable and driveable, so-called room cells, according to the preamble of claim 1.

Room cells equipped with such floor coverings, which can be assembled from prefabricated wall, ceiling and floor elements, are known, for example, from DE-GM 299 12 735.

There are three main requirements for such floor coverings: they should be non-slip for walking, should be able to be driven over with as little vibration as possible and should be easy and perfectly cleanable in terms of hygiene requirements. Finally, since such floor coverings made of stainless steel sheet have to be embossed due to their surface structure and different sheet thicknesses in the order of 0.7 to 2.5 mm have to be taken into account, such floor coverings should be able to be produced with as little processing effort as possible, ie embossing or pressing equipment for relatively thin sheets cannot be used for thicker sheets.
These requirements are essentially met with a floor covering in accordance with DE-GM 299 12 753.2, i.e., although older known floor coverings do have studs, these are not in an optimal ratio to the unembossed surface areas of the sheet metal cut and, according to the motto "more is more", the embossing height for the studs is usually too high, which does not result in largely vibration-free driving.

Although the floor covering according to DE-GM 299 12 753.2, as mentioned, meets the requirements mentioned, it has proven to be

It has been shown that there is room for further improvement, namely with regard to greater vibration-free trafficability and slip resistance, which is also the objective underlying this innovation.

This task is solved with a floor covering of the type mentioned at the beginning according to the innovation in that in the unembossed surface of the sheet metal blank, a punch-like individual knob of considerably smaller diameter is arranged centrally between every four knobs.

The diameter of the circularly formed knobs is still preferably 10 to 15 mm and that of the punch-shaped individual knobs now arranged in between is 3 to 5 mm.

The height of the studs and the individual studs of 0.2 to 0.4 mm, preferably 0.3 mm, is also retained.

As is easily imaginable, this new design of the floor covering with regard to the arrangement of individual studs significantly improves both the vibration-free ability to drive over it and the slip resistance, since smaller wheels and people walking over them with their feet experience additional support from the individual studs in the spaces between the larger studs.

There is nothing to prevent the nub surfaces of the relatively large nubs from still being roughened with a directionally non-oriented grinding or a crossing grinding structure.

Finally, an advantageous further development which makes such grinding, which involves a certain amount of manufacturing effort, unnecessary consists in the fact that the relatively large knobs are formed from several individual knobs.

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In both cases, the individual studs can be more or less pointed, which will be explained in more detail later.

The entire processing of the sheet metal blank is limited to a single embossing process using appropriate embossing tools

The new type of floor covering is explained in more detail below using drawings of exemplary embodiments.

It shows

Fig.l the floor covering or the sheet metal cut in plan view;

Fig.2 a section through the floor covering along line II-II in
Fig.1;

Fig.3 a greatly enlarged section through a large diameter
Studs and a much smaller single stud
and

Fig.4 in plan view and greatly enlarged one of several
Individual knobs formed relatively large diameter
studs.

The floor covering still consists of at least one stainless steel sheet cut 2 with a thickness S in the range of 0.7 to 2.5 mm, which is provided with a surface structure, whereby the structure is formed from knobs 1 that are pronounced on the walking and driving side B and the knobs 1 have flat, roughened surfaces. The knobs 1 are circular in shape and the unembossed area F of the sheet cut 2 surrounding the knobs has a size of 1.5 to 2 times the sum of all knob areas F ^1. On the other hand, the knobs 1 have a height H that is less than half the thickness S of the stainless steel sheet.

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and for which a height of only 0.2 to 0.4 mm, preferably 0.3 mm, is provided. In addition, the stud surfaces F ¹ can preferably be provided with a directionally non-oriented grinding or with a crossing grinding structure. The "square bond" or square grid of the stud arrangement mentioned for the above reason is indicated in dashed lines in Fig. 1 and with regard to the area ratio of the surface F ¹ of a stud 1 to the surrounding unpressed surface F, reference is made to the square also shown in dash-dotted lines in Fig. 1.

For such a floor covering, it is now essential that in the unembossed area F, in the middle between every four studs 1, a punch-like individual stud 1' of considerably smaller diameter is arranged.

As far as the low embossing height H of the knobs 1 and 1' shown in Fig. 2, 3 is concerned, this does not correspond to the actual conditions, since 0.3 mm can practically not be represented graphically. This low embossing or pressing height H of the knobs 1 and 1', it should be expressly pointed out, applies to all sheet thicknesses of the specified sheet thickness range in the order of 0.7 to 2.5 mm.

A special embodiment is illustrated in Fig.4, according to which the relatively large diameter studs 1 according to Figs.1 to 3 are represented or formed by a plurality of individual studs I ¹ , preferably arranged in a circular arrangement as shown. This "dissolution" of the studs 1 into individual studs 1', whereby here too, as can also be seen from Fig.4, the separate arrangement of individual studs 1' remains between the studs 1, creates a correspondingly finely structured overall surface, which makes grinding of the surfaces F ¹ unnecessary, since they are practically no longer present or have been dissolved. The individual studs 1' can be "broken" or pointed with regard to their load-bearing areas, as can be seen from Fig.3.

Claims (6)

1. Floor covering, in particular for walk-in and drive-in cold storage and fresh-keeping cells, comprising at least one surface-structured stainless steel sheet blank with a thickness (S) in the order of magnitude of 0.7 to 2.5 mm, the structuring being formed from knobs ( 1 ) arranged in a square grid on the walk-in and drive-in side (B), and the unembossed surface (F) of the sheet blank ( 2 ) surrounding the knobs having a magnitude of 1.5 to 2 times the sum of all knob surfaces (F'), and the knobs ( 1 ) having a height (H) which is less than half the thickness (S) of the stainless steel sheet blank, characterized in that in the unembossed surface (F) a punch-like individual knob ( 1 ') of considerably smaller diameter is arranged centrally between every four knobs ( 1 ). 2. Floor covering according to claim 1, characterized in that the protrusion height (H) of the studs ( 1 ) and of the individual studs is 0.2 to 0.4 mm, preferably 0.3 mm. 3. Floor covering according to claim 1 or 2, characterized in that the diameter of the circular studs ( 1 ) is 10 to 15 mm and that of the individual studs ( 1 ') is 3 to 5 mm. 4. Floor covering according to claim 1 or 2, characterized in that the stud surfaces (F) of the studs ( 1 ) are roughened with a directionally non-oriented grinding or a crossing grinding structure. 5. Floor covering according to one of claims 1 to 3, characterized in that the studs ( 1 ) are formed from several individual studs ( 1 '). 6. Floor covering according to claim 5, characterized in that the individual studs ( 1 ') are arranged in a circular pattern.