DE8318310U1 - GRID MOLDED FROM A STRIP WITH SLIP GUARD - Google Patents

Description

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APPROVED REPRESENTATIVES BBM EUROPEAN PATENT OFFICE

Lange Str. 51.D-7000 Stuttgart Tel. (0711) 296310 and 297295 Telex 0722312 (patwo d)

June 9, 1983 Reg.-No. 126 644

75O8bts

Dieter STEEB, Im Schönenbühl, CH 9050 Steinegg-Appenzell

Switzerland

Grate formed from a sheet metal strip with anti-slip protection

The invention relates to a grate formed from a sheet metal strip.

The invention is based on the object of a grate this To create a type that has a great load-bearing capacity with the greatest possible length despite its ease of manufacture so that it can also be used for driving motor vehicles, e.g. cars and trucks.

This object is achieved by a grate with a grate plate, which / äen anti-slip has holes beaded upwards, with two webs delimiting the grate plate at their longitudinal edges / vertically downward and the free edges of these delimiting belts, which extend parallel to the grate plate, which are flanged downwards, approximately diamond-shaped elongated holes is provided, which are transverse

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Extend over the longitudinal center line of the grate plate and eggs downwardly shaped perforated flange with decreasing distance from the longitudinal center line of the grate plate, increasing height dimensions have, the grate plate, the webs and the belts consist of a sheet metal strip, the longitudinal edges of which to form the webs and belts are bent around two fold lines so that the width of the grate plate is smaller than that double grate height.

Tests with a grating of this type have shown that with a length of 4 m it has the desired load-bearing capacity, so that it can be used to form the road surfaces of structures that can be driven over by heavy vehicles is. This has the advantage of being very easy to manufacture The main advantage of the grate plate is that the substructure can be produced at a significantly lower cost can, because to support the grate due to its great length, the number of grate supports is significantly reduced can be.

A particularly high load-bearing capacity is achieved when the width of the grate plate corresponds approximately to the web height.

Despite the large length of around 4 m, which is possible with a high load-bearing capacity, the grate can pass through at any time if necessary A simple saw cut can be cut to the desired length.

An embodiment according to the invention is shown in the drawing.

The drawing shows a perspective and broken away view of the embodiment.

The embodiment shown in the drawing of a grate according to the invention has a through the middle '. Area of a sheet metal strip formed grate plate 1. \ The two Länqsränder of the grate plate forming sheet metal "ji strip are two fold lines 2 at right win | angle to the grate plate 1 bent downwards and form two '.! Web 3, the free longitudinal edges of which are in turn bent inwardly by two further fold lines 4 by 90 ° and thereby form belts 5 which run parallel to the grate plate 1.

In the illustrated embodiment, corresponds to; Width of the grate plate 1 by the height of the webs 3 given grate height, so that in any case the width of the grate plate is less than twice the grate height.

In the grate plate are diamond-shaped, downward-borne;.

delte elongated holes 6 provided, which extend across the longitudinal '. the center line of the grate plate extend and its downward; shaped perforated flange 7 with decreasing distance from the longitudinal center line of the grate plate have increasing height dimensions, so that in addition to the stiffening by the webs 3, an additional stiffening of the grate plate is achieved here, through which a load to be borne by the grate plate is evenly applied to the is distributed on both webs. In addition, the grate plate 1 is for production | of an anti-skid device with upwardly flanged holes 8 Ij, which are arranged between the downwardly flanged elongated holes 6. %

Tests have shown that the so unusual from a 1

Sheet metal strips shaped grate have a very large load capacity Z

so that at a length of 4 m it carries the load of a |

can carry heavily loaded trucks. I.

- 4 / claims ^r l

Claims (3)

-A- Protection claims If 1. Grate with a grate plate (1), which has holes (8) flared upwards for the slider protection, with two the grate plate at its longitudinal edges delimiting, vertically downward webs (3) and the free edges of these delimiting belts (5), which extend parallel to the grate plate (1), with the beaded down, for example diamond-shaped elongated holes (6) which extend transversely over the longitudinal center line of the grate plate (1) and ctefli downwardly shaped perforated flange (7) r <it decreasing distance from the longitudinal center line of the grate plate (1) have increasing height dimensions, the grate plate (1), the Web (3) and the belts (5) consist of a sheet metal strip, decsen longitudinal edges to form the webs (3) and Belts (5) are bent around two fold lines (2, 4) so that the width of the grate plate (1) is less than twice that Grate height. 2.Rost according to claim 1, characterized in that the width of the grate plate (1) corresponds approximately to the grate height. 3. Grate according to claim 1 or 2, characterized in that the grate is at least 4 m long.