DE8525580U1 - Grate for drainage channels - Google Patents

Description

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DIPL-ING. LOTHAR DÖRNER

PATE MTA N WA LT - 3 "

58 hagen. sTRESEMANNSTRAssE 15 September 6th 1985

TELEPHONE (02331) 283Ö2. - -. .

Lawyer file 85O7O / V

Utility model registration
Applicant Ermossa AG.

Grate for drainage channels

( The innovation relates to a ladder-like grate made of sheet steel for drainage channels, which is provided with longitudinal edges folded and raised towards the opposite longitudinal edge, with edge areas adjoining the longitudinal carriages in the direction of the opposite longitudinal edge and with support webs arranged between the edge areas, each of which is each adjacent support web is separated by an inlet slot which has an edge that is corrugated in the direction of the upright position of the longitudinal edges and merges into an inclined inlet surface parallel to each support web.

Drainage channels are used to drain traffic areas certainly. They take up rainwater in the shape of a line and pass it on. Become drainage channels formed by stringing together channel elements, which are elongated drainage objects with a trough-shaped cross-section, which are covered by grids or lids. The drainage channels are classified according to their place of installation.

During a test, forces are applied to the channel elements as well as the grids and covers, depending on their location are of different sizes according to their classification.

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According to DIN 19 580 part 2 draft Septi 1980, grates are used for Traffic areas that are used exclusively by pedestrians and cyclists - Class A -; a test force of 15 kN applied; on gratings for sidewalks, pedestrian areas, car parking areas and car parking decks - class B -, one test force from 125 kN.

Armor döx eifiyäiiyö yönäfiriten kind are under the designation "Self-rusting" known. They only meet class A. - Basically, known self-grids withstand a test force, C which is slightly greater than half the test force for class B, namely approx. 68 kN -.

The innovation aims to remedy this. The innovation is based on the task of providing a grate of the type mentioned at the beginning to be trained in such a way that it can withstand larger test forces, in particular test forces for grids of class B. According to the Innovation, this object is achieved in that the support webs at their ends merging into the edge areas Stiffening beads are provided.

The innovation is based on the knowledge that the critical ^ x areas in a soap frost, the transition areas between the support webs and the edge areas. In these areas - apart from the stopper knobs - there have been no deformations so far intended to stabilize the grids. Rather, the undeformed sheet metal had to be used in these areas Withstand stress. In the adjoining areas, the long edges were folded and raised on the one hand as well as the beading of the supporting webs themselves, on the other hand, a higher load is already possible. At these weak points the well-known soap freezes are provided with beads according to the innovation

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see. The grate after the innovation holds higher test forces especially those that have to be endured / to assign the grate to a class B traffic area. Here is the Production of the grate after the innovation is no more complex than the known grids. The beads are namely at the same time embossed with the stopper nubs in the sheet steel.

Auscjestsltun ^ en and further training of the new "are in dsn Subclaims indicated. An embodiment of the innovation is shown in the drawing and is described below O described in more detail. It shows:

Figure 1, approximately on a scale of 1: 1, the plan view of a grate, of which only the part following an end face is shown;

FIG. 2 shows a longitudinal section through the part of the grate shown in FIG. 1 along the cutting line II-II in Figure 1 and

FIG. 3 shows a cross section through the part of the grate shown in FIG. 1 along the cutting line III-III in Figure 1.

The grate chosen as an exemplary embodiment for drainage channels is designed like a ladder and made of sheet steel.

The grate has two longitudinal edges 1, each of which has a folded surface 3 and one facing the opposite longitudinal edge has subsequent angled raised surface 2. Support webs 4 are provided between the longitudinal edges 1. The support webs 4 are provided with outwardly protruding stopper knobs 5. Between adjacent support webs 4 an inlet slot 6 is provided in each case. Each enema

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■ 'slot 6 has a beaded in the direction of the raised surface and parallel to each support web 4 in an inclined a' ⁹ ·; running surface 7 passing edge 8 on. In addition, an edge region 9 adjoins each longitudinal edge 1 in the direction of the opposite longitudinal edge. The support webs 4 are provided with stiffening beads at their ends merging into the edge regions 9.

The stiffening beads 10 are elongated and run parallel to the support webs 4. In the top view, the stiffening beads 10 are designed as a regular geometric figure. In the exemplary embodiment, stiffening beads 10 are provided on the one hand in the manner of elongated rectangles rounded at the end faces, and on the other hand in the manner of rhombuses. The same stiffening beads are expediently used for the same grate. The stiffening beads 10 are pronounced in the direction of the stopper knobs 5; So, like the stopper knobs, they protrude beyond the visible surface of the grate. In the exemplary embodiment, the stiffening beads 10 are provided at all points of the edge regions 9 at which one of the support webs 4 merges into one of the edge regions 9. In this ^"embodiment, the reinforcing beads 10 take in the skirt ^ - area 9, the function of the stopper studs 5. It is also possible to provide in the longitudinal direction of the grate in the stated range, the stopper studs 5 and the stiffening ridges 10 alternately.

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Claims (5)

DIPL.-ING. LOTHAR DÖRNER PATENT ADVOCATE hagen. sTRESEMANNSTRAssE 15 September 6th 1985 TELEPHONE (02331) 28302 -,, -. , _. _ Lawyer file 35O7O / V Utility model registration
Applicant: Ermossa AG. Protection claims () 1. Ladder-like grate made of sheet steel for drainage channels, which is provided with longitudinal edges folded and raised towards the opposite longitudinal edge, with edge areas adjoining the longitudinal edges in the direction of the opposite longitudinal edge and with support webs arranged between the edge regions, each of which is supported by each adjacent support web is separated by an inlet slot which has an edge beaded in the direction of the upright position of the longitudinal edges and merging into an inclined inlet surface parallel to each support web, characterized in that the ends of the support webs (4) merging into the edge regions (9) have stiffening beads ( 10) are provided. 2. Grate according to claim 1, characterized in that the stiffening beads (10) are elongated and arranged parallel to the support webs (4). 3 * grate according to claim 1 or 2, characterized in that the stiffening beads (10) are designed as a regular geometric figure in plan view. 4. Grate according to one of claims 1 to 3, in which stop knobs are provided on the view side of the grate, characterized in that the stiffening beads (10) are pronounced in the direction of the stopper knobs (5). 5. Grate according to claim 4, characterized in that on adjacent Support webs (4) in the edge area stop knobs (5) and stiffening beads (10) are provided alternately.