Laying box for receiving a drainage set

The cable tray installation box with adjustable support legs and ribbed floor structure addresses tray deformation issues by ensuring stable installation and easy assembly, enhancing support and load-bearing capacity.

EP4700187A1Pending Publication Date: 2026-02-25EDM SYST GMBH
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Patent Information

Application Number
EP2024195453
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2026-02-25

AI Technical Summary

Technical Problem

Shower trays deform in areas covering installation boxes due to insufficient support, particularly with larger installation boxes and smaller shower trays, leading to installation issues.

Method used

A cable tray installation box with adjustable support legs that provide additional support to the shower tray, featuring height-adjustable and detachable design, and a non-circular connecting body for easy assembly and disassembly, along with a ribbed floor structure for enhanced load-bearing capacity.

Benefits of technology

Prevents tray deflection by providing adjustable support, ensuring stable installation regardless of tray dimensions and facilitating easy assembly and disassembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a distribution box (1) for installation in a floor structure and for receiving a drain fitting for the production of a water drain embedded in a screed for a floor-level shower, with a base (11) to which a circumferential side wall (12) is attached, which has at least one passage (13) for a wastewater pipe running outside the distribution box, via which a drain fitting to be installed in the distribution box (1) can be connected to the wastewater pipe, wherein at least one support foot (4) extending in the direction opposite to the base (11) is arranged in the interior space bounded by the side wall (12).
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Description

[0001] The invention relates to a laying box for installation in a floor structure and for receiving a drain fitting for the production of a water drain embedded in a screed for a floor-level shower according to the preamble of claim 1.

[0002] Showers are often installed flush with or nearly flush with the floor, meaning they have little or no elevation relative to the floor level. Therefore, the shower drain assembly must be located within the floor structure, usually in the screed. A distribution box, also known as an installation box, is frequently used for this purpose. This box has a connection for a drain assembly that can be installed inside the box and connected to a wastewater pipe located outside the box. During installation, the distribution box is aligned in a recess in the floor, and then a screed is poured so that it is flush with the top edge of the distribution box. Such a distribution box is disclosed, for example, in EP 4 283 059 A1.

[0003] When installing a floor-level shower, especially with larger installation boxes in combination with a smaller shower tray, it can happen that the shower tray bends in the area of ​​the installation box it covers, which can lead to a deformation of the shower tray.

[0004] The invention aims to remedy this problem. The invention is based on the objective of providing a cable tray installation box in which deflection is prevented regardless of the dimensions of the shower tray. According to the invention, this objective is achieved by a cable tray installation box with the features of the characterizing part of claim 1.

[0005] The invention provides a mounting box in which deflection is prevented regardless of the dimensions of the shower tray. By arranging at least one support leg extending towards the floor within the interior bounded by the side wall, additional support for the shower tray is provided within the mounting box, thus counteracting deflection.

[0006] In a further development of the invention, at least one support leg is designed to be height-adjustable. This allows the support height to be adjusted.

[0007] In an embodiment of the invention, at least one support leg of the at least one support leg is detachably connected to the floor and / or the side wall. This allows for the support legs to be positioned as needed.

[0008] In a further embodiment of the invention, the support foot has a preferably non-circular connecting body, wherein at least one receptacle for the positive-locking and / or force-locking attachment of the connecting body of the support foot is provided on the circumferential side wall on its side facing the interior of the base box and / or on the base. This enables easy assembly and disassembly of support feet.

[0009] In a further development of the invention, at least one of the at least one recess on the base is formed by a depression or a slot with a preferably non-circular cross-section, into which the connecting body of the support foot can be inserted. This enables simple fastening by inserting the connecting body of a support foot into a depression or by sliding the connecting body of a support foot into a slot.

[0010] In one embodiment of the invention, at least one of the at least one receptacle on the side wall is formed by a recess comprising two parallel insertion strips into which the connecting body of the support foot can be inserted. This enables simple mounting of a support foot to a side wall. The connecting body can be formed, for example, by an insertion plate attached laterally to the support foot or by a mounting bracket on which the support foot is attached.

[0011] In a further embodiment of the invention, the support foot comprises a base part and an adjusting part connected to it via a threaded engagement. The threaded engagement enables height adjustment by relative rotation between the base part and the adjusting part.

[0012] In a further development of the invention, an intermediate part is arranged between the base part and the adjusting part, which engages in threads with both the base part and the adjusting part. This enables differentiated height adjustment. Preferably, the two thread engagements have different thread pitches.

[0013] In one embodiment of the invention, means are provided for remotely controlling the rotation of the base part and intermediate part relative to each other, or of the intermediate part and adjusting part relative to each other. This enables height adjustment of a support leg after a shower tray has been installed.

[0014] In one embodiment of the invention, the means for remote-controlled rotation are formed by a cord wound onto a circumferential, preferably self-adhesive, winding surface of the intermediate part or the adjusting part. This provides a simple and cost-effective remote control for adjusting the height of the support leg.

[0015] In a further embodiment of the invention, the support foot has a bearing element at its end, which is pivotably mounted about several axes, preferably about a spherical segment. This allows for optimal positioning of the bearing element against the floor of a shower tray. Advantageously, the bearing element and the adjusting element have corresponding spherical segment-shaped guide surfaces that slide against each other, at least in certain areas.

[0016] In a further development of the invention, the floor is provided, at least in some areas, with a ribbed structure on its underside facing away from the side walls, which is preferably designed as a honeycomb structure. This improves the load-bearing capacity of the floor.

[0017] Other embodiments and configurations of the invention are specified in the remaining dependent claims. An exemplary embodiment of the invention is illustrated in the drawings and is described in detail below. The drawings show: Figure 1 shows a schematic spatial representation of a cable tray with arranged supports; Figure 2 shows a schematic representation of a cable tray above a cable tray according to Figure 1 installed shower tray; Figure 3 shows the arrangement from Figure 2 In a first spatial sectional view: Figure 4 shows the arrangement from Figure 2 in a second spatial sectional view and Figure 5 the detailed view of an area of ​​the arrangement supported by a column. Figure 2 in longitudinal section.

[0018] The installation box 1 chosen as an exemplary embodiment has a base 11 with a largely rectangular footprint and a largely curved transverse side, to which a circumferential side wall 12 adjoins. The base 11 is provided on its underside, facing away from the side walls 12, with a honeycomb-shaped rib structure 111 (see figure). Figure 4In the side wall 12, on the curved, narrow transverse side of the installation box 1, two openings 13 are arranged spaced apart from each other for the optional passage of a wastewater pipe running outside the installation box. A drain assembly (not shown) installed in the base box 1 can be connected to a wastewater pipe via these openings. Each opening 13 is provided with a sealing ring to seal against the wastewater pipe passing through it. The side wall 12 of the installation box 1 has two surfaces 121 angled at 45°. (Alternatively, the surfaces can also be angled at another angle, in particular at 30°.) The two openings 13 are each arranged in one of these surfaces 121. A third opening can also be arranged centrally, with the two openings 13 angled at 45° to it.The penetrations 13 are each closed by a material layer provided with predetermined breaking notches (not shown), which can be pierced if necessary. In the exemplary embodiment, the penetrations 13 have an outwardly directed collar-shaped extension 131 that receives the sealing ring. Alternatively or additionally, the penetrations 13 can also have an inwardly directed collar-shaped extension.

[0019] In the area of ​​the four arranged rounded corners of the laying box 1, a cantilever arm 2 is arranged projecting outwards, which forms a Figure 1 The schematically sketched base 3 accommodates the support. The base 3 has a threaded rod 31, which is screwed into a threaded bore provided for this purpose in the cantilever arm 2. Height adjustment is thus possible by rotating the base 3.

[0020] The side wall 12 is provided with inserts 14 on its longitudinal sides and on the curved front, each of which is formed by two parallel insertion strips 141.

[0021] A support foot 4 is arranged on one longitudinal side and on the front of the side wall 12. The support foot 4 comprises a cup-shaped base part 41, which is provided with an external thread 411 around its open end. A threaded bore 412 is provided in the base part 41 at its bottom end.

[0022] An intermediate part 42 is screwed onto the base part 41. The intermediate part 42 is essentially cup-shaped and has a cylindrical base 421 centrally located at its closed end, through which a threaded bore 422 passes. An internal thread 423 is provided in the inner wall of the intermediate part 42, by means of which the intermediate part 42 is screwed onto the external thread 411 of the base part 41. The outer surface of the intermediate part 42 is provided with an adhesive surface in certain areas, on which a cord 424 is wound.

[0023] An adjusting element 43 is screwed into the intermediate part 42. The adjusting element 43 comprises a threaded rod 431, which is provided at its end with a spherically segmented head 432. A support plate 44 is pivotally mounted on the head 432. The support plate 44 has a spherically segmented receptacle 441 against which the spherically segmented head 432 rests. The head 432 is pivotably held axially in the receptacle 441 by means of a retaining ring 442. The adjusting element 43 is screwed into the threaded bore 422 of the cylindrical base 421 of the intermediate part 42 by means of its threaded rod 431.

[0024] The support foot 4, thus formed, is mounted on a mounting bracket 5. For this purpose, a screw 51 is guided through the first, bottom-side leg of the mounting bracket 5 and screwed into the threaded bore 412 of the base part 41. With its second leg, the mounting bracket 5 is inserted between the two insertion rails 141 of an insertion 14 of the side wall 12. The support foot 4 is thus positively connected to the side wall 12 in a way that is also detachable.

[0025] In Figure 3A longitudinal section of a distribution box 1 according to the invention is shown in a floor structure after the installation of a shower tray 6. After installation of the support foot 4, an unwound section of the cord 424 was positioned in the area below the drain opening 61 of the shower tray 6. After installation of the shower tray 6, the cord 424 is accessible from the outside, and by pulling on the cord 424, the intermediate part 42 with its internal thread 423 can be moved upwards along the external thread 411 of the base part 41 until the support plate 44 rests against the shower tray 6.

Claims

1. Installation box (1) for installation in a floor structure and for receiving a drain fitting for the production of a water drain embedded in a screed for a floor-level shower, with a base (11) to which a surrounding side wall (12) is attached, which has at least one opening (13) for a wastewater pipe running outside the installation box, via which a drain fitting to be installed in the installation box (1) can be connected to the wastewater pipe, characterized by the fact that in the interior space bounded by the side wall (12) at least one support leg (4) extending in the direction opposite to the floor (11) is arranged.

2. Installation box according to claim 1, characterized by the fact that which has at least one support leg (4) that is height-adjustable.

3. Installation box according to claim 1 or 2, characterized by the fact that at least one support leg (4) of the at least one support leg is detachably connected to the floor (1) and / or the side wall (12).

4. Installation box according to claim 3, characterized by the fact that the support foot (4) has a preferably non-circular connecting body, wherein at least one receptacle for the form-fitting and / or force-fitting attachment of the connecting body of the support foot (4) is provided on the circumferential side wall (12) on its side facing the interior of the base box (1) and / or on the bottom (11).

5. Installation box according to claim 4, characterized by the fact that at least one of the at least one receptacle on the floor (1) is formed by a recess or an insertion with a preferably non-circular cross-section, into which the connecting body of the support foot (4) can be inserted.

6. Installation box according to claim 4 or 5, characterized by the fact that at least one of the at least one receptacle on the side wall (12) is formed by an insertion (14) comprising two parallel insertion strips (141) into which the connecting body of the support foot (4) can be inserted.

7. Installation box according to one of the aforementioned claims, characterized by the fact that the support foot (4) comprises a base part (41) and an adjusting part (43) connected to it via a threaded engagement.

8. Installation box according to claim 7, characterized by the fact that An intermediate part (42) is arranged between the base part (41) and the adjusting part (43), which is in thread engagement with the base part (41) on one side and the adjusting part (43) on the other.

9. Installation box according to claim 7 or 8, characterized by the fact that Means for remotely controlling rotation of base part (41) and intermediate part (42) or of intermediate part (42) and adjusting part (43) are arranged relative to each other.

10. Installation box according to claim 7 or 8, characterized by the fact that the means for remote control of rotation are formed by a cord (424) which is wound onto a circumferential, preferably self-adhesive, winding surface of the intermediate part (42) or the actuating part (43).

11. Installation box according to one of the aforementioned claims, characterized by the fact that the support foot (4) has at its end a bearing part, preferably in the form of a bearing plate (44), which is pivotably mounted about several axes, preferably about a spherical segment surface.

12. Installation box according to claim 11, characterized by the fact that the support part and the actuating part (43) have corresponding spherical segment-shaped guide surfaces which lie against each other in a sliding manner, at least in some areas.

13. Installation box according to one of the aforementioned claims, characterized by the fact that the base (1) is provided at least in some areas on its underside facing away from the side walls (12) with a rib structure (111), which is preferably designed as a honeycomb structure.

Citation Information

Patent Citations

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