DE102021105383A1 - Balcony or patio element with a drainage device, drainage device for such a balcony or patio element, and manufacturing method - Google Patents

Abstract

The invention relates to a balcony or terrace element with or consisting of a concrete slab and a drainage device (1) which has a pipe section (10) which extends through the concrete slab and a channel section (20) which extends along a surface of the concrete slab and is firmly connected to the pipe section (10), the channel section (20) being embedded in the concrete slab and anchored in the concrete slab with a positive fit. Furthermore, the invention relates to a drainage device for such a balcony or terrace element and a manufacturing method.

Description

The invention relates to a balcony or terrace element with or made of a concrete slab and a drainage device. Furthermore, the invention relates to a drainage device for a balcony or terrace element and a manufacturing method.

Balcony or patio slabs are usually prefabricated at the factory as prefabricated concrete parts. In order to enable drainage of the precast concrete part, it has hitherto been customary to pour a drainage channel directly into the balcony or terrace slab. For this purpose, a formwork, for example made of wood, is inserted during the manufacturing process, so that when the concrete is poured, a space within the formwork is not filled with concrete. Once the concrete has hardened, the formwork is removed, leaving a concrete-cast gutter.

It is known from the prior art to cast drainpipes directly into a concrete slab. DE 2 351 200 A1 shows, for example, such a drain pipe that is cast into a balcony slab. Since the drain pipe extends through the entire concrete slab, it is easy to anchor the drain pipe. However, the inflow to the drain pipe continues either via a gradient in the concrete slab or via a channel. However, both the production of a slope and the formation of a groove are expensive when producing precast concrete parts.

The known concrete channels, which are produced by formwork in the production process and essentially form a depression in the hardened concrete, have the further disadvantage, in addition to the complex production, that it is not possible to insert a grating. For example, balcony or garden furniture cannot be placed without tilting in the area of the channel, since the channel basically represents a depression in the concrete slab. Furthermore, such channels in concrete slabs are not protected from contamination due to the lack of a grate. Autumn leaves in particular can lead to a significant impairment of the drainage capacity.

The object of the invention is therefore to specify a balcony or terrace element that is easy to manufacture and offers improved, durable drainage performance. In addition, the object of the invention is to specify a drainage device for such a balcony or terrace element and a manufacturing method.

According to the invention, this object is achieved with regard to the balcony or terrace element by the subject matter of patent claim 1, with regard to the drainage device by the subject matter of patent claim 9 and with regard to the production method by the subject matter of patent claim 10.

Specifically, the invention is based on the idea of specifying a balcony or terrace element with or made of a concrete slab and a drainage device, with the drainage device having a pipe section and a channel section. The pipe section extends through the concrete slab. The channel section extends along a surface of the concrete slab and is fixedly connected to the pipe section, the channel section being embedded in the concrete slab and anchored in a form-fitting manner in the concrete slab.

The balcony or terrace element according to the invention can have the concrete slab and the drainage device, it not being ruled out that further components form the balcony or terrace element. However, it is also possible for the balcony or terrace element to consist of the concrete slab and the drainage device, in particular only of these two components or assemblies. In all cases, the balcony or terrace element can form a precast concrete component, in particular a precast concrete slab with an integrated drainage device.

The invention is based on the idea of initially providing a separate drainage device which is introduced into the concrete slab directly during the concrete pouring process. In this way, the drainage device becomes an integral part of the balcony or terrace element. This means that there is no need for complex formwork to keep a concrete channel free during production. The amount of work is significantly reduced as only the drainage device is inserted into the outer formwork of the concrete slab before the concrete is poured into the outer formwork. The channel section is positively connected to the concrete slab and thus ensures good drainage over the long term. Since the channel section remains in the concrete slab after the concrete has hardened, post-processing steps after the concrete has been poured are avoided. In the prior art, it has been the case so far that after the concrete has hardened, the casing for the concrete drainage channel has to be removed. This work step is omitted, which reduces the production costs for the balcony or terrace element according to the invention compared to the prior art.

In a preferred embodiment, it is provided that the channel section has a U-shaped cross-sectional contour with a base and two legs, with at least one anchoring element being arranged on each of the legs for positive embedding in the concrete slab. The drainage device is preferably oriented in the concrete slab such that the bottom of the channel section is parallel to a surface of the concrete slab. The legs may be oriented substantially perpendicular to the floor. The anchoring elements arranged on the legs preferably penetrate deep into the concrete slab, as a result of which the drainage device is securely fastened in the concrete slab. In this respect, the anchoring elements ensure a firm connection between the channel section and the concrete slab, which would not occur otherwise, since concrete and stainless steel, for example, do not form any connection with one another.

In concrete terms, the anchoring element can be formed by a flange with through-openings, with the material of the concrete slab penetrating through the through-openings for positive anchoring. In other words, the concrete flows between the through openings for pouring the concrete slab and thus forms a solid structure after hardening, which positively holds the flange. In addition, there is a non-positive holding component, which is negligible compared to the positive connection.

In a further preferred embodiment of the invention, it is provided that the channel section, in particular including its anchoring elements, is designed in one piece as a sheet metal part. This design results in a particularly cost-effective production of the balcony or patio element. In addition, it is ensured in this way that the drainage device has a high degree of tightness. A particularly high level of cost efficiency can be achieved if the sheet metal part is bent over to form the channel section by being folded over several times.

The pipe section is preferably firmly connected to the bottom of the channel section, in particular in a non-detachable manner. The connection can be made, for example, by a weld seam. A one-piece connection or a monolithic design of the pipe section and channel section is also conceivable. This also results in a particularly good tightness of the drainage device.

The pipe section can also have a sleeve pipe and an inner pipe, the inner pipe having a connecting piece for a pipe socket of a pipeline system. The sleeve tube thus surrounds the inner tube and protects it from contamination during the manufacturing process. When pouring the concrete of the concrete slab, the sleeve tube is thus surrounded by the concrete, with the sleeve tube simultaneously preventing liquid concrete from reaching the inner tube. This means that the inner pipe remains free and can be used to connect pipe sleeves, for example to connect the balcony or terrace element to a pipe system for further irrigation.

In the case of the invention, the drainage device can also have a grate which can be inserted into the channel section in a form-fitting manner. The grate thus at least partially covers the channel section and ensures that the channel section does not become dirty. At the same time, the grate can be driven over or walked on. It is also possible, for example, to place garden or balcony furniture on the grate, with the grate providing a flat floor surface. The entire surface of the balcony or patio element can be used to set up garden or balcony furniture without the risk of a garden table tipping over, for example. Rather, the grating ensures that table legs positioned in this area are aligned level with the other table legs. In this respect, provision is preferably made for the grating to have a height which is adapted in such a way that a surface of the grating is flush with the surface of the concrete slab.

In a particularly preferred embodiment of the invention, it is provided that the drainage device, in particular at least the pipe section and the channel section, are made of metal. The use of stainless steel as the material for the drainage device, in particular the pipe section and the channel section, is particularly preferred. The grate is preferably made of the same material as the channel section.

According to a secondary aspect of the invention, a drainage device is provided for a balcony or terrace element, in particular for a balcony or terrace element as described above, the drainage device having a pipe section and a channel section, and the channel section having anchoring elements with through-openings for positive embedding in a Has concrete slab of the balcony or patio element.

The advantages and preferred developments described in connection with the balcony or terrace element apply analogously to the drainage device mentioned here.

• - eine Verschalung zum Gießen einer Betonplatte bereitgestellt;
• - eine Entwässerungseinrichtung, insbesondere eine zuvor beschriebene Entwässerungseinrichtung, in die Verschalung so eingelegt, dass ein Rohrabschnitt der Entwässerungseinrichtung über die Verschalung vorsteht; und
• - Beton in die Verschalung so eingegossen, dass der Beton mit Verankerungselementen der Entwässerungseinrichtung beim Aushärten eine formschlüssige Verbindung eingeht.

Another secondary aspect of the invention relates to a method for producing a balcony or terrace element, in particular a balcony or terrace element as described above. In the method according to the invention

• - provided a formwork for pouring a concrete slab;
• - A drainage device, in particular a drainage device described above, inserted into the formwork in such a way that a pipe section of the drainage device projects beyond the formwork; and
• - Concrete poured into the formwork in such a way that the concrete forms a positive connection with the anchoring elements of the drainage system when it hardens.

The production method according to the invention provides concrete and patio slabs that achieve good drainage performance, the drainage device of which has a channel section that can be covered by a grate in order to create level ground on the concrete or patio slab and that dispense with additional formwork and corresponding work steps. The manufacturing process is thus improved in a cost-effective manner.

In order to prevent concrete from penetrating into the pipe section when pouring concrete, provision can be made for a sleeve pipe or a formwork bell to be arranged as formwork on the pipe section before the concrete is poured. The sleeve tube may be attached to the chute portion by welding. After pouring the concrete, the sleeve tube is preferably cut or cut to length to the thickness of the concrete slab. In another embodiment of the invention, the shuttering bell is removed after the concrete has been poured in, in particular after it has hardened. After the shuttering bell has been removed, a socket pipe can be attached, in particular connected, to the pipe section, in particular to a connecting piece.

• 1 eine perspektivische Darstellung einer Entwässerungseinrichtung für ein erfindungsgemäßes Beton- oder Terrassenelement nach einem bevorzugten Ausführungsbeispiel; und
• 2 eine Schnittansicht der Entwässerungseinrichtung gemäß 1 entlang der Längsachse des Rohrabschnitts;
• 3 eine perspektivische Darstellung der Entwässerungseinrichtung nach 3 von unten, wobei das Hülsrohr ausgeblendet ist;
• 4 eine perspektivische Darstellung einer Entwässerungseinrichtung für ein erfindungsgemäßes Beton- oder Terrassenelement nach einem weiteren bevorzugten Ausführungsbeispiel, wobei der Rohrabschnitt mit einer Schalungsglocke versehen ist; und
• 5 eine Schnittansicht durch die Entwässerungseinrichtung gemäß 4 im Bereich der Schalungsglocke.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. show in it

• 1 a perspective view of a drainage device for a concrete or terrace element according to the invention according to a preferred embodiment; and
• 2 a sectional view of the drainage device according to FIG 1 along the longitudinal axis of the pipe section;
• 3 a perspective view of the drainage device 3 from below, with the sleeve tube hidden;
• 4 a perspective view of a drainage device for a concrete or patio element according to the invention according to a further preferred embodiment, wherein the pipe section is provided with a shuttering bell; and
• 5 a sectional view through the drainage device according to FIG 4 in the area of the formwork bell.

In 1 a drainage device 1 is shown, which has a pipe section 10 and a channel section 20 . The pipe section 10 and the channel section 20 are firmly connected to one another. The tube section 10 is arranged at a longitudinal end of the channel section 20 . A different arrangement is possible depending on the application. For example, the pipe section 10 can also be arranged in a middle area of the channel section 20 .

The channel section 20 has, as in 2 can be seen, a bottom 21 and two legs 22 on. In this respect, the channel section 20 forms a U-shaped cross-sectional contour. The legs 22 extend essentially at right angles to the base 21.

In 2 It can also be seen that the legs 22 have an upper section which is double-walled by folding the sheet metal forming the channel section 20 .

Approximately at mid-height of the legs 22, the metal sheet that forms the channel section 20 is bent outwards at an angle. The section bent outward at an angle forms an anchoring element 23 or a flange 24. In the exemplary embodiment shown here, the acute angle between the leg 22 and the anchoring element 23 or flange 24 is preferably less than 45°, in particular 30°. Other angles are possible. In any case, it is provided that there is an acute angle between the leg 22 and the anchoring element 23 or flange 24 which is less than 90°.

In 1 Again, it is easy to see that the flange 24 has a plurality of through-openings 25 . The through openings 25 are regularly formed over the entire length of the flange 24 . Preferably, the through-openings 25 each have a rectangular opening contour.

The flange 24 with the through openings 25 serves to anchor the drainage device 1 in a concrete slab. The concrete slab is usually produced by forming a formwork, which is usually made of wood, with the formwork then being filled with concrete. If necessary, steel reinforcements can be introduced into the formwork beforehand, which are poured in when the concrete is poured.

In addition, a drainage device according to 1 placed in the casing. When pouring the concrete, the liquid concrete thus flows around the drainage device 1 and penetrates the through openings 25 in the flange 24. As soon as the concrete has hardened, this results in a form-fitting, fixed connection between the drainage device and the concrete slab. The drainage device is preferably arranged such that the pipe section 10 completely penetrates the concrete slab and the channel section 20 is arranged in the concrete slab such that the upper edges of the legs 22 are aligned flush with a surface of the concrete slab.

In 1 it is also clearly visible that the drainage section is covered by two grates. A different number of grates is also possible. The grates are like 2 shows, inserted into the channel section 20 in a form-fitting manner. The gratings are preferably designed in such a way that they are flush with the upper edges of the legs 22 . End plates 26 can also be attached to the longitudinal ends of the channel section.

In the cross-sectional view according to 2 it can be seen that the tube section has a sleeve tube 11 and an inner tube 12 . The inner tube 12 is significantly shorter than the sleeve tube 11. The sleeve tube 11 thus penetrates the concrete slab completely and can, for example, also protrude below the concrete slab. The sleeve tube 11 is preferably welded to the channel section 20 and can be cut back to the thickness of the concrete slab after the concrete has been poured in and, if necessary, has hardened. The inner tube 12 forms a connecting piece 13 which includes a conically tapering edge. The sleeve tube 11 protects the inner tube 12 when pouring the concrete for the concrete slab.

3 shows the drainage device 1 in a perspective view from below, with the sleeve tube 11 being hidden so that the connecting piece 13 can be seen clearly. The connecting piece 13 serves to accommodate a pipe sleeve of a pipeline system. In this way, the drainage device of the concrete slab can easily be connected to a corresponding drainage device or the like.

Instead of a sleeve tube 11, a drainage device 1 can also only have the inner tube 12. In order to be able to cast such a drainage device 1 with the concrete slab, a shuttering bell 14 can be used. 4 shows a drainage device 1, in which the pipe section 10 is covered with a shuttering bell 14 before pouring the concrete for the concrete slab. The shuttering bell 14 has, as shown in the sectional view 5 clarifies a conical outer contour, which tapers in the direction of the channel section 20. The shuttering bell 14 completely surrounds the inner tube 12 and rests on the channel section 20 . When pouring the concrete for the concrete slab, the formwork bell 14 is surrounded by the concrete, with an upper gripping section 15 of the formwork bell 14 remaining free. The shuttering bell can be gripped at this gripping section 15 and removed after the concrete has hardened. The conical shape of the shuttering bell 14 facilitates the release of the shuttering bell 14 from the concrete slab.

Reference List

1

drainage device

10

pipe section

11

sleeve tube

12

inner tube

13

connecting piece

14

shuttering bell

15

gripping section

20

gutter section

21

floor

22

leg

23

anchoring element

24

flange

25

passage opening

26

end plate

30

rust

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 2351200 A1 [0003]

Claims (14)

Balcony or terrace element comprising or consisting of a concrete slab and a drainage device (1) having a pipe section (10) extending through the concrete slab and a gutter section (20) extending along a surface of the concrete slab and connected to the pipe section (10) is firmly connected, the channel section (20) being embedded in the concrete slab and anchored in the concrete slab in a form-fitting manner. balcony or terrace element claim 1 , characterized in that the channel section (20) has a U-shaped cross-sectional contour with a base (21) and two legs (22), with at least one anchoring element (23) being arranged on each of the legs (22) for positive embedding in the concrete slab is. balcony or terrace element claim 2 , characterized in that the anchoring element is formed by a flange (24) with through-openings (25), the material of the concrete slab penetrating through the through-openings (25) for positive anchoring. Balcony or terrace element according to one of the preceding claims, characterized in that the channel section (20), in particular including its anchoring elements (23), is designed in one piece as a sheet metal part. Balcony or terrace element according to one of claims 2 until 4 , characterized in that the pipe section (10) is firmly connected to the base (21) of the channel section (20), in particular in a non-detachable manner. Balcony or terrace element according to one of the preceding claims, characterized in that the pipe section (10) has a sleeve pipe (11) and an inner pipe (12), the inner pipe (12) having a connecting piece (13) for a pipe sleeve of a pipe system. Balcony or terrace element according to one of the preceding claims, characterized in that the drainage device (1) has a grate (30) which can be inserted in a form-fitting manner into the channel section (20). Balcony or terrace element according to one of the preceding claims, characterized in that the drainage device (1), in particular at least the pipe section (10) and the channel section (20), are made of metal, preferably of high-grade steel. Drainage device (1) for a balcony or terrace element, in particular according to one of the preceding claims, with a pipe section (10) and a channel section (20), the channel section (20) having anchoring elements with through-openings (25) for positive embedding in a concrete slab of the Has balcony or terrace element. Method for producing a balcony or terrace element, in particular according to one of Claims 1 until 8th wherein: - formwork for pouring a concrete slab is provided; - A drainage device (1), in particular claim 9 , is placed in the formwork in such a way that a pipe section (10) of the drainage device (1) protrudes over the formwork; - Concrete is poured into the formwork in such a way that the concrete forms a positive connection with the anchoring elements (23) of the drainage device (1) when it hardens. procedure after claim 10 , characterized in that before the concrete is poured in as formwork, a sleeve tube (11) or a formwork bell (14) is arranged on the pipe section (10). procedure after claim 11 , characterized in that the sleeve tube (11) is cut to the thickness of the concrete slab after pouring the concrete. procedure after claim 11 , characterized in that the shuttering bell (14) is removed after the concrete has been poured in, in particular after it has hardened. procedure after Claim 13 , characterized in that after the removal of the shuttering bell (14), a socket pipe is connected to the pipe section (10).

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