EP2904155B1 - Drainage channel - Google Patents

Description

The invention relates to a drainage channel, comprising a drainage body which can be installed in a floor and a cover fastened to the drainage body according to the preamble of patent claim 1.

A large number of such drainage channels are known, the drainage body being made of hydraulic concrete or plastic concrete at least when higher loads have to be absorbed. More recently, drainage channels have been offered that have relatively fragile drainage bodies. In any case, however, there is a problem with drainage channels of the type mentioned at the outset in that the stability and long-term strength, in particular in the area between the drainage body and the cover, can only be managed with a large amount of material.

document DE 38 04 156 A1 discloses a manhole cover which consists of a frame which is firmly inserted into an opening in the road surface and a cover which is inserted therein.

A drainage channel according to the preamble of claim 1 is known from the DE 70 36 272 U or the DE 24 55 940 A1 known.

The invention is based on the object of developing a drainage channel of the type mentioned in such a way that high strength against loads to be absorbed and also long-term strength are ensured.

This object is achieved by a drainage channel according to claim 1.

In particular, this object is achieved by a drainage channel comprising a drainage body which can be installed in a floor and a cover fastened to the drainage body, the drainage body on its two upper edges in each case having two higher channel supports and two lower channel supports offset inwardly at a distance from a central longitudinal plane and the cover includes correspondingly shaped outer and inner cover pads that are shaped such that all channel pads engage all of the cover pads when loaded.

The fact that there is not only a single pair of supports between the drainage body and cover, as has been customary up to now, ensures that a higher load capacity can be achieved without great effort.

Furthermore, the pair of higher channel supports is at a (small) distance from the corresponding cover supports in the unloaded state, which is closed when loaded due to the elasticities present. This enables manufacturing tolerances to be compensated and a reduced bending moment to be ensured when driving over, which enables a leaner design.

The higher and / or the lower channel supports are arranged in sections of the drainage body that can be relined when installed in the ground. This ensures that a very direct load transfer into the soil can take place.

The cover preferably has edge-side support bars running in a longitudinal direction of the cover and grid bars extending transversely thereto, the lower edges of the support bars forming the inner cover supports. Such a construction is very simple and yet stable at the same time. The outer cover supports here preferably comprise a multiplicity of individual supports which are connected to the support rods, projecting outward therefrom. This arrangement creates a stable structure with a reduced amount of material.

Holding devices are preferably attached to the cover and to the drainage body in such a way that the upper edges are secured against spreading of the drainage body by the cover. This also increases the stability of the overall arrangement. The holding devices preferably comprise projections on the channel supports, which come into a holding engagement with counter-elements and / or with the cover supports when the drainage body is spread apart. This arrangement fulfills the aforementioned purpose in a very simple manner.

The drainage body is preferably designed as a plastic casting, in particular from a thermoplastic, preferably as an injection molding. This saves costs and weight, so that the transport and installation of the drainage body is simplified.

Fig. 1

eine Stirnansicht einer Ausführungsform der Entwässerungsrinne,

Fig. 2

eine Teil-perspektivische Ansicht der Rinne nach Fig. 1,

Fig. 3

eine Teil-perspektivische Ansicht von schräg unten auf die Abdeckung gemäß den Fig. 1 und 2,

Fig. 4

eine Teil-Stirnansicht auf die Entwässerungsrinne nach Fig. 1,

Fig. 5

eine Ansicht ähnlich der nach Fig. 4, jedoch mit einer aus Blech geformten Abdeckung,

Fig. 6

eine Ansicht entsprechend der nach den Fig. 4 und 5, jedoch mit einer Abdeckung aus Gusseisen und

Fig. 7

eine Teil-perspektivische Ansicht eines Entwässerungskörpers nach den Fig. 1-6.

Preferred embodiments of the invention are explained in more detail below with the aid of figures. Show here

Fig. 1

2 shows an end view of an embodiment of the drainage channel,

Fig. 2

a partial perspective view of the gutter after Fig. 1 .

Fig. 3

a partial perspective view obliquely from below on the cover according to the 1 and 2 .

Fig. 4

a partial front view of the drainage channel after Fig. 1 .

Fig. 5

a view similar to that of Fig. 4 but with a sheet metal cover,

Fig. 6

a view corresponding to that of the 4 and 5 , but with a cast iron cover and

Fig. 7

a partial perspective view of a drainage body according to the Fig. 1-6 ,

In the following description, the same reference numbers are used for the same and equivalent parts.

As in the 1 and 2 shown, the embodiment of the drainage channel shown here comprises a drainage body 10 and a cover 20 which can be placed thereon.

On the upper edges 11, 11 'of the drainage body 10, higher channel supports 12, 12' and inwardly offset, lower channel supports 13, 13 'are provided, to which outer cover supports 22, 22' and inner cover supports 23, 23 'of cover 20 correspond.

In the exemplary embodiment shown here, the cover comprises support rods 24, 24 ', which run in the longitudinal direction of the channel and grid rods 25 which lie transversely thereto and which form openings 26 between them. These support bars 24, 24 'stand with their lower edges on the lower channel supports 13, 13' of the drainage body 10. These lower channel supports 13, 13 'have protruding holding devices 15 which can then engage with the lower edges of the support rods 24, 24' when the drainage body is spread apart due to high loads, that is to say the upper edges 11, 11 'strive away from one another , This prevents spreading.

Furthermore, it can be seen from the figures that the channel supports 12, 12 'and 13, 13' are arranged in sections of the drainage body 10 which can be relined when installed in the ground. This results in a direct load transfer to the environment.

In Fig. 3 it is shown that the cover 20 has 27 individual supports 28 on the underside of edge strips, that is to say is not solid, but is supported only over relatively small-area support areas. On the one hand, this saves material.

A slight gap is provided between the higher channel supports 12, 12 'and the corresponding outer cover supports 22, 22', through which manufacturing tolerances can be compensated. When loaded, the material deforms so that the gap closes.

The drainage body 10 shown here can - as in the Fig. 4-6 shown - can also be combined with other covers. While Fig. 4 the embodiment shown again shows is in Fig. 5 a cover shown, which is designed as a sheet metal part. The functions result from the description above. The same applies to Fig. 6 , where a cast grate is combined with the drainage body 10. Here too (as in the case of Fig. 5 shown embodiment) corresponding holding devices are provided which effectively prevent the drainage body from spreading. At the in Fig. 5 shown embodiment, these are again the lower edges of the support rods of the cover 20. In the embodiment according to Fig. 6 holding devices 15 'in the form of claws are provided on the cover 20, which come into engagement with corresponding holding devices 16 of the higher channel support 12 of the drainage body 10.

At this point it should also be noted that the holding devices 15, 16 of the drainage body 10 are not designed as continuous strips but as strip sections, as shown in FIG Fig. 7 is shown. This ensures that dirt particles can be washed away better.

LIST OF REFERENCE NUMBERS

10

drainage body

11, 11 '

upper edge

12, 12 '

Higher channel support

13, 13 '

Lower channel support

14, 14 '

Relining Section

15

holder

16

holder

20

cover

22, 22 '

Outer cover pad

23, 23 '

Inner cover pad

24, 24 '

supporting rod

25

Gitterstab

26

opening

27, 27 '

sidebar

28

single prop

M

Central longitudinal plane

Claims (7)

1. A drainage channel, comprising
   a drainage body (10), which can be built into a ground, and a cover (20), which can be attached onto the drainage body (10), wherein the drainage body (10) comprises, on each of the upper edges (11, 11'), a higher channel support (12, 12'), and a lower channel support (13, 13') offset inwards in terms of the distance thereof to a central longitudinal plane (M), and the cover (20) comprises correspondingly formed outer cover supports (22, 22') and inner cover supports (23, 23'), which are formed such that all of the channel supports (12 - 13') are in engagement with all of the cover supports (22 - 23') when being loaded,
   characterized in that,
   in an unloaded and mounted state, the higher channel supports (12 - 12') have a spacing from the corresponding outer cover supports (22 - 22'), with said spacing being closed upon loading due to existing elasticities.
2. The drainage channel according to claim 1,
   characterized in that
   the higher (12, 12') and/or the lower (13, 13') channel supports are disposed in sections (14, 14') of the drainage body (10), which can be shimmed when being installed into the ground.
3. The drainage channel according to any one of the preceding claims,
   characterized in that,
   at the edge side, the cover (20) has support rods (24, 24') extending in a longitudinal direction of the cover (20) and stanchions (25) extending transversely therethrough, and the lower edges of the support rods (24, 24') form the inner cover supports (23, 23').
4. The drainage channel according to any one of the preceding claims, in particular according to claim 3,
   characterized in that
   the outer cover supports (22, 22') comprise a plurality of single supports (28) connected to the support rods (24, 24') while protruding outwards therefrom.
5. The drainage channel according to any one of the preceding claims,
   characterized by
   holding devices (15, 16), which are assembled to the cover (20) and the drainage body (10) such that the upper edges (11, 11') are secured by the cover (20) against the drainage body (10) being spread apart.
6. The drainage channel according to any one of the preceding claims,
   in particular according to claim 5,
   characterized in that,
   at the channel supports (12 - 13'), the holding devices (15, 16) comprise protrusions getting into holding engagement with counterparts (15') and/or the cover supports (22- 23') when the drainage body (10) is being spread apart.
7. The drainage channel according to any one of the preceding claims,
   characterized in that
   the drainage body (10) is formed as a plastic cast part, in particular of a thermoplastic synthetic material, preferably as an injection-molded part.

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