EP3527734B1 - Drainage channel with attached frame - Google Patents

Description

The invention relates to a drainage channel with one, two longitudinally running channel walls connected to each other by means of a channel bottom, channel channels, these channel walls are provided in each case on their upper edge with a frame for supporting a channel cover overlapping the channel body, the frames in each case along the Form a top edge and these frames are each made as a folded sheet metal blank. Such a drainage channel is from the DE 198 56 689 A1 previously known. This drainage channel consists in a known manner of interconnected channel elements. Such a channel element consists of a base element, to each of which a side wall is connected on both sides at right angles. As a result, such a floor element has an essentially U-shaped cross section. The side walls mentioned can be connected to one another in a height-adjustable manner by means of a slot screw connection. On their tops, the mounting profiles are each shaped as a frame. The frames serve to accommodate a channel cover when installed.

Such drainage channels are already from the prior art, especially about US 2014/0110007 A1 , the DE 298 08 197 U1 , the DE 94 00 242 U1 or the US 2004/0240941 A1 previously known. These are concrete or plastic channels with a frame to support one Channel cover was placed on the material of the channel body. Here, the actual support of the frame and the channel cover lying thereon always takes place ultimately on the channel body, which has to be designed correspondingly massive.

Next is from the DE 195 11 206 A1 previously known to design the frame as an upper channel part in such a way that frame side walls slide along the side walls of the channel body. To ensure that the frame can be adjusted in height, double pipe guide adjustment elements are arranged within the channel body in the edge regions and against the bottom of the channel body. The adjustment elements can be adjusted in height at the top, ie through holes in the frame and / or an extension frame, using a screw thread. A cover grille, which is held by this frame and fixed on the side, absorbs load forces and guides them to the continuous bottom of the channel body via several adjustment elements. The basic idea of the previously known drainage channel is that a closed bottom group, which ultimately forms the channel body, is provided in the lower region. A height-adjustable frame is placed on this floor assembly using telescopic adjustment elements.

In addition, from the EP 2 851 477 A1 a drainage channel with a cross-section approximately U-shaped or box-shaped channel body made of sheet metal for embedding in a foundation and a grate covering the open long side of the channel body previously known. The channel body is strengthened by means of support bodies arranged laterally along its longitudinal extent for the transmission of pressure forces acting vertically on the grate to a foundation arranged below the support bodies. In addition, the channel body can be additionally stiffened by means of transverse webs arranged between the side walls of the channel body transversely to the longitudinal extent of the channel body. The crossbars are on the side walls of the Trough body provided recesses latched or hooked in the area of the recesses.

A comparable stiffening of the channel body by toggle bodies that can be used transversely to the longitudinal extent of the channel is also from the DE 10 2007 010 073 A1 previously known.

Another state of the art is from DE 202 00 509 U1 previously known. Proceeding from this prior art, the invention is based on the object of designing a channel body with a frame with the least possible material expenditure, but nevertheless stable and load-bearing, and stiffening the channel body, but also the frame associated with the channel body, purely constructively, in order to achieve an expanded area of application and a longer service life for the drainage channel according to the invention due to the higher load capacity.

This is achieved in that the upper edge of the channel wall of the drainage channel each has a frame, which frame forms an edging along the upper edge. This edge is followed by an inner cheek, on which the side of a channel cover can rest. A support surface 7 is formed perpendicular to the inner cheek, on which the weight of the channel cover is supported. According to the invention, this support surface is in turn gripped under with a U-shaped support profile which supports the support surface with a first U-flank by the U-shaped support profile being supported on the channel wall with its second U-flank lying away from the support surface . In this way, the weight of the channel cover is derived into the channel wall. At the same time, the contact surface and the overall construction gain in shape stability compared to the prior art, despite the low use of materials.

For the purposes of the invention, this frame is to be realized as a push-on frame in which the edging is designed to accommodate the free upper edge of the channel walls. The edging then involves edging by 180 °, so that two material layers of the frame form parallel flanks. The upper edge of the channel is then inserted into this edging and fastened in a positive and non-positive manner. This can be done by clamping, crimping, clinching, screwing, riveting and other possible types of connection.

In the latter case, the top edge of the channel wall is reinforced and stiffened on both sides by the folds, and the top edge of the channel wall is protected by the fold overlapping this top edge.

In this case, the edge of the frame on the inside of the channel is followed by a contact surface projecting in the direction of the inside of the channel, on which, when used as intended, a cover grating of the drainage channel can be supported. This contact surface is bent downwards on its end edge facing the inside of the channel in such a way that a vertical flange arranged vertically in the installed position, a first U-flank, and then a U-shaped support profile with a second U-flank adjoining the channel wall .

The multiple reshaping to form the edges of the frame initially stiffen the frame itself.
Incidentally, compressive forces introduced via the contact surface are at least partially absorbed via the first U-flank adjoining the contact surface, diverted downward and finally introduced via the repeated bends into a second U-flank, which in turn is supported on the side walls, so that the forces are introduced into this side wall area reinforced by the second U-flank. Accordingly, pressure forces introduced into the frame via the channel cover do not have to be absorbed by the frame alone, nor by the adjacent channel walls alone, but rather are absorbed together and into the foundation below the drainage channel. As a result, the drainage channel according to the invention can either be exposed to greater loads or can be produced with less material.

In an advantageous embodiment, the contact flange of the push-on frame can be connected to the adjacent channel wall in a suitable manner. In this context, the use of a riveted joint has proven particularly useful.

In an advantageous development of the solution according to the invention, the frame according to the invention is provided with cutouts in the area of the inner cheek facing the inside of the channel body and / or in the area of the first U-flank, in particular for fixing a channel cover. The gutter cover is fixed in a simple manner by connecting engagement elements projecting in the direction of the cutouts to the push-on frame and thus securing it against displacement in the longitudinal direction, that is to say the corresponding covers are secured in their correct position relative to the push-on frame. In another advantageous development, releasable connecting elements are used in this context, so that the channel cover can be removed from the drainage channel if necessary, for example in order to clean or otherwise maintain it, or to be able to replace the channel cover if necessary.

In a further improved embodiment, the channel body of the drainage channel can be stiffened by means of load crossbars which can be used transversely to the longitudinal direction of the channel body. This has the advantage that the load cross members stiffen the channel body in the transverse direction, in particular opposing a possible buckling or possible indentations of the side channel walls of the channel body, so that the resilience of the channel body according to the invention of the drainage channel is thereby further improved.

In a specific embodiment, the load crossbars are each arranged directly below the support flange of the push-on frame, so that the forces introduced via the channel cover can be absorbed by the load crossbars and diverted to the outside of the channel walls.

In a specific embodiment, the load beams are each designed as box profiles open at the bottom, which saves material compared to closed box bodies, since a lower cover of the box profile would no longer make any significant contribution to stiffening.

In a further improved design, the load beams are designed in such a way that the end walls of the box profiles are not directly connected to the adjacent side walls of the box profile, but rather an insertion slot is formed on both sides of the end walls. In this way, further material savings are achieved. In addition, the channel walls of the channel body are provided with insertion tabs projecting in the direction of the channel interior of the channel body in such a way that the end walls of the load bars can each be inserted into the area between the insertion tabs projecting in the direction of the channel interior and the channel walls.

In the case of a push-on frame, it is also particularly advantageous if the load crossbars are then arranged immediately below the support flange of the push-on frame, and therefore engage under it, so that forces introduced via a trough cover supported on the push-on frame are diverted to the outside of the channel walls of the channel body.

The gutter body itself, in particular its gutter walls and its gutter sole, are each provided with inlet openings distributed over the gutter body, so that not only surface water introduced through the gutter cover, but possibly also in the Leachate entering the channel environment can enter the channel body and can be drained off via it.

According to the invention, the channel body and, preferably, the load cross members are / are made as folded sheet metal cut / s, i.e. made of a comparatively light and therefore easier to transport material.

Figur 1

eine Entwässerungsrinne mit 2 Aufsteckzargen in einer perspektivischen Ansicht in einer Explosionsdarstellung,

Figur 2

die in Figur 1 gezeigte Entwässerungsrinne in einer perspektivischen Ansicht in montiertem Zustand,

Figur 3

die in Figuren 1 und 2 gezeigte Entwässerungsrinne in einer Draufsicht,

Figur 4

die in Figur 3 gezeigte Entwässerungsrinne in einer in Figur 3 mit IV bezeichneten Querschnittansicht, sowie

Figur 5

ein in Figur 4 mit V bezeichnetes Detail in einer Querschnittansicht.

The invention is explained in more detail with reference to an exemplary embodiment shown in the drawing only by way of example. Show it:

Figure 1

a drainage channel with 2 push-on frames in a perspective view in an exploded view,

Figure 2

in the Figure 1 shown drainage channel in a perspective view in the assembled state,

Figure 3

in the Figures 1 and 2 shown drainage channel in a plan view,

Figure 4

in the Figure 3 drainage channel shown in a in Figure 3 marked with IV cross-sectional view, and

Figure 5

an in Figure 4 Detail labeled V in a cross-sectional view.

Figure 1 shows a drainage channel 1 in one embodiment, each with a push-on frame in a perspective view in an exploded view. In this embodiment, a frame 5, 5 'in the form of a push-on frame can be attached to the upper edges of the channel walls 3, 3' can be positively and non-positively connected to the channel wall if necessary, but is not directly molded on. For the transverse stiffening of the channel body 2, load beams 15 can additionally be inserted into the channel body 2 transversely to the longitudinal extent of the channel body 2. The load beams 15 are each designed as box profiles that are open at the bottom and are each closed at the top by a closed support surface 16, to which the side walls 17, 17 'open at the bottom are connected on both sides, the box profile being delimited on the face side by the end walls 20, 20' . In each case an insertion slot 21, 21 'is arranged in the transition area between the end walls 20, 20' and the side walls 17, 17 '.

The gutter body 2 is provided on both sides in the region of the gutter walls 3, 3 'with the end walls 20, 20' of the load bars 15 corresponding, in the direction of the gutter interior of the gutter body 2 projecting tabs 22, 22 '. Accordingly, the load bars 15 can be connected to the channel body 2 in such a way that the end walls 20, 20 'are inserted into the area between the insertion tabs 22, 22' and the adjacent channel wall 3, 3 ', so that the load bars 15 are each intended to be transverse to Longitudinal extension of the channel body 2 are arranged in the channel body 2.

As also from Figure 1 can be seen, the channel body 2 is distributed over its circumference, ie in the region of the side walls 3, 3 'and the channel bottom 4, each provided with inlet openings 24, so that seepage water which has penetrated approximately in the vicinity of the channel body 2 reaches the channel body 2 via the inlet openings 24 and can be discharged as intended.

The push-on frames 5, 5 'exist as shown in Figure 2 , which shows the drainage channel 1 in the assembled position in a perspective view, in each case from an overlapping edge 6, 6 'which overlaps the upper edge of the channel walls 3, 3' when properly installed adjoining inner cheek 8, a support surface 7 and a support profile 11 underneath. The area of the inner cheek 8 in the installed position passes through a right-angled bend into the horizontal support surface 7 in the installed position. A channel cover, not shown in the drawings, lies on this bearing surface 7 as intended. By means of a further, at least substantially right-angled, bend on the longitudinal edge of the support surface 7 facing away from the installed channel wall 3 or 3 ', the support surface 7 merges into a U-shaped support profile 11, the first U-flank 10 of which lies directly on the Support surface 7 is fixed and the second U-flank 12 is supported on the adjacent side wall 3 or 3 '.

The push-on frames 5, 5 'are each provided with cutouts 14, both in the region of the inner cheek 8 facing the interior of the channel and in the region of the support surface 7 and in the region of the first U-flank 10. These cutouts 14 are usually used for the correct mounting and fixing of a channel cover to be inserted into the push-on frame 5, 5 ', which is not shown in the drawing.

In this case, the load beams 15 reach under, as shown in Figure 2 when properly installed, the support flanges 11 of the plug-on frames 5, 5 'which are seated on the upper edge of the channel walls 3, 3', so that the plug-on frames 5, 5 'are each additionally supported on the load beams 15.

Figure 3 shows the drainage channel 1 in a plan view. In this case, a push-on frame 5, 5 'is placed on the upper edges of the channel walls 3, 3'.

Figure 4 shows along the in Figure 3 entered section line shows a cross section through the channel body 2 of the drainage channel 1.

Figure 5 shows an in Figure 4 Detail of the cross-sectional view denoted by V, in particular relating to the fastening of the frame 5 ′ formed here as a push-on frame. As shown in Figure 5 In the assembled position, an edge 6 overlaps the upper edge of the channel wall 3 ', the contact surface 7 for a channel cover (not shown) adjoining the edge 6 on an inner cheek 8 facing the inside of the channel via a right-angled edge. Along its longitudinal edge facing away from the channel wall 3 'there is another right-angled edge, which in turn is adjoined by a U-shaped support profile 11. This comprises a first U-flank 10, as well as a second U-flank 12, which runs vertically in the installed position and which lies parallel to the channel wall 3 '. The second U-flank 12 is firmly connected to the adjacent channel wall 3 'by means of a rivet connection 13.

In addition, as already stated, the load crossbar 15 is arranged directly below the support profile 11 in such a way that the support surface 16 of the load crossbar 15 engages under the support profile 11. 7, the load cross member 15 is connected to the channel body 2 of the drainage channel 1 in that the end wall 20 is inserted on both sides into the intermediate area between an insertion tab 22, 22 'projecting towards the channel walls 3, 3', so that the Load beam 15 as intended according to the illustration in Figure 3 is arranged transversely to the longitudinal extent of the drainage channel 1 immediately below the support profile 11. The end walls 20, 20 'of the load beam 15 are each dimensioned in such a way that the end walls 20, 20' each protrude from the underside in such a way that the protrusion 23 of the end wall 20 formed in this respect directly on the adjacent channel wall 3 '. is present.

As a result, the edge 6 of the frame 5, 5 'causes stiffening and edge protection for the upper edge of the channel walls 3, 3'. Furthermore, the frame 5, 5 'provides a support surface 7 on both sides for a channel cover not shown in the drawing. In doing so For example, pressure forces introduced via the channel cover are derived downward via the first U-flank 10, this first U-flank 10 of the support profile 11 being supported on the channel wall 3, 3 'via a sole of the support profile 11 and the second U-flank 12 . As a result, the pressure forces introduced are correspondingly diverted downward via the channel walls 3, 3 'either into the subsurface or into a foundation under the drainage channel 1. The contact flange 12 brings about additional reinforcement and stiffening in this area in the area of the introduction of force into the respectively adjacent channel walls 3 and / or 3 '. Otherwise, the design of the frame 5, 5 'in a form of multiple folds causes the frame 5, 5' to be stiffened.

In addition, the support profile 11 is undercut by the support surface 16 of a load crossbar 15, via which load transfer can also take place. Here, too, the protrusion 23 of the end walls 20, 20 'of the load beam 15 directly adjacent to the channel walls 3 and / or 3' causes additional reinforcement and stiffening. In addition, the load crossbar 15 causes a transverse stiffening of the channel body 2 as a whole.

Thus, a drainage channel is described above, which can be produced from a channel body, a frame and, if necessary, one or more load bars by plugging or connecting the individual parts, whereby the interaction and the structural design of the above-mentioned individual parts generally produce a more stable and resilient drainage channel , so that the individual parts can be produced, for example, as comparatively thin-walled sheet metal blanks, without this affecting the resilience of the drainage channel.

REFERENCE SIGN LIST

1

Drainage channel

2

Channel body

3, 3 '

Channel wall

4

Channel sole

5, 5 '

Slip-on frame

6

Edging

7

Contact surface

8th

Inner cheek

10

first U flank

11

Support profile

12th

second U flank

13

Riveted joint

14

Recess

15

Load beam

16

Support surface

17, 17 '

Side wall

20, 20 '

bulkhead

21, 21 '

Insertion slot

22, 22 '

Insert tab

23

Got over

24

Inlet opening

Claims (11)

1. Drainage channel having a channel body (2) which has two longitudinally extending channel walls (3, 3') connected to one another by means of a channel base (4), wherein these channel walls (3, 3') are each provided at their upper edge with a respective frame (5, 5') for supporting a channel cover engaging over the channel body (2), wherein the frames (5, 5') in each case form a folded edge (6, 6') along the upper edge, characterized in that these folded edges (6, 6') are each adjoined by an inner cheek (8) and a bearing surface (7) projecting perpendicularly therefrom, wherein a U-shaped support profile (11) which engages under the bearing surface (7) and whose first U-flank (10) is connected to the bearing surface (7) and merges into the latter and whose second U flank (12) rests against the channel wall (3, 3') is integrally formed on the frames (5, 5') beneath the bearing surface (7), wherein both the channel body (2) and the frames (5, 5') are in each case produced as folded sheet metal blanks and the frames (5, 5') are in each case formed as an attaching frame and are connected to the channel body (2) in such a way that in each case an upper edge of the channel wall (3, 3') engages positively and non-positively in each case in one folded edge (6, 6') of the frame (5, 5').
2. Drainage channel according to claim 1, characterized in that the second U-flank (12) is fixed to the channel wall (3, 3') contacting it by means of a rivet connection (13) or a screw connection.
3. Drainage channel according to one of claims 1 or 2, characterized in that the frames (5, 5') are provided with recesses (14) in the region of the inner cheek (8) and/or in the region of the second U-flank (10), in particular for fixing a channel cover.
4. Drainage channel according to one of the preceding claims, characterized in that the channel body (2) is stiffened by means of load traverses (15) which can be inserted transversely to the longitudinal direction of the channel body (2).
5. Drainage channel according to claim 4, characterized in that the load traverses (15) are arranged in each case directly below the support profile (11) of the frame (5, 5').
6. Drainage channel according to claim 4 or 5, characterized in that the load traverses (15) are each constructed as a downwardly open box profile.
7. Drainage channel according to claim 6, characterized in that the box profile of the load traverses (15), which is open downwards in the installation position, is closed on the upper side by a closed support surface (16), to which a respective side wall (17, 17'), which is vertical in the installation position, adjoins on both sides and a respective end wall (20, 20'), which is vertical in the installation position adjoins on the front side, wherein the end walls (20, 20') and the side walls (17, 17') are in each case connected to one another only indirectly via the support surface (16) and in each case keep an insertion slot (21, 21') free between them.
8. Drainage channel according to claim 7, characterized in that the load traverses (15) are inserted with their end walls (20, 20') in insertion tabs (22, 22') formed on both sides in the channel walls (3, 3') and projecting into the interior of the channel body (2), wherein in the case of a formation of the frames (5, 5') as attaching frames the support profile (11) is preferably supported on the support surface (16) of the load traverses (15).
9. Drainage channel according to claim 8, characterized in that the end walls (20, 20') completely engage behind the insertion tabs (22, 22') and a projection (23) of the end walls (20, 20') projecting beyond the insertion tabs (22, 22') rests against the material of the channel walls (3, 3') of the channel body (2) adjacent to the insertion tabs (22, 22').
10. Drainage channel according to one of claims 4 to 9, characterized in that the load traverses are produced as folded sheet metal blanks.
11. Drainage channel according to one of the preceding claims, characterized in that the channel walls (3, 3') and/or the channel base (4) are assigned inlet openings (24) arranged distributed over the channel body (2).

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