Foil tray with flexible pipe penetration for sealing under bathtubs and shower trays

Abstract

Foil tray for sealing below shower trays, shower or bathtubs, shower boards, or other constructions that require sealing according to DIN 18534. Characterized by a rectangular tub made of flexible, waterproof material, with welded seams and corners on all sides.

Description

1. Technical field

[0001] The invention relates to the field of building waterproofing, in particular the waterproofing of sanitary facilities such as shower trays and bathtubs against the building structure in accordance with the requirements of DIN 18534. 2. State of the art

[0002] State-of-the-art methods include so-called bathtub sealing strips, which are installed in the area of ​​the bathtub rim (shower tray or bathtub) between the tub and the wall, or composite seals using polymer dispersions, sealing slurries, and fleeces. These systems require professional installation and clean workmanship. Sealing the area under the tub is usually not carried out or is difficult to implement, especially if pipes cross in the installation area or at material changes, such as floor construction (subfloor, insulation, screed). Fig. 1, Nos. 2, 3, 4 and 5). This can lead to unnoticed water ingress into the floor or walls in the event of leaks at the drain or tears in the silicone joints, which promotes moisture damage and mold growth and necessitates expensive renovations. 3. Technical Problem / Task

[0003] The invention aims to create a permanently reliable seal beneath shower trays and bathtubs that can be used regardless of the specific nature of the substrate. In particular, it is intended to ensure that no water can penetrate adjacent building components in the event of leaks in the drain area or installation errors. At the same time, the solution should be easy to use and compatible with common materials. 4. Solution to the task

[0004] The solution is a liner tray with a flexible pipe penetration, installed beneath shower trays or bathtubs. The liner tray consists of a rectangular, waterproof tray made of suitable, flexible material (e.g., PVC, EPDM, or comparable waterproof materials). The corners and seams are factory-welded, creating a permanently watertight, flexible tray. The liner tray is available in various sizes and is manufactured with an additional dimension of approximately 4 cm in length and width, and 5 cm in height, compared to the shower tray, shower, or bathtub to be installed. This allows it to be easily inserted and adjusted into the designated floor recess. For the drain, the liner tray is pierced at the designated point, and a self-adhesive butyl sleeve is attached. Since this point is not fixed, it can be flexibly installed at any point along the liner tray.After the sleeve has been glued and secured, the corresponding drain pipe can be inserted and the sealing is complete. 5. Advantages of the invention - Flexible adaptation to the substrate No crossing cables need to be laid unless required (e.g., electrical cables). Furthermore, no extensive sealing work on the substrate is necessary if different materials are present in the structure. - Independence from the subsoil It can be applied to any load-bearing surface, regardless of whether it is concrete, wood, screed, plaster, or drywall. - Waterproof / Sealed As long as the foil tray is not damaged, a seal is guaranteed compared to other systems with the simplest installation. - Easy assembly After inserting the foil tray and passing the drain pipe through, the foil is roughly cut to size and glued at the transitions to the substrate or to the existing seal using butyl tape or other adhesives. - Increased safety in case of leaks Since the system is two-part, the error rate for processing errors is very low. - Time-saving because no drying times and no minimum layer thicknesses need to be observed - 2-part system Can also be done by laypersons No special tools are required for assembly. 6. Example of implementation

[0005] In a typical application, the foil tray is inserted into a prepared recess in the floor where a shower tray, shower, or bathtub will later be installed. The recess is usually already present in the building's shell and may, for example, accommodate unevenness or pipe penetrations (e.g., for plumbing). Fig. 1, No. 5) or have open joints from component transitions (e.g. Fig. 1, No. 2, 3, 4). The future drain of the shower tray is marked, a corresponding hole is punched in the foil tray and the pipe collar is attached ( Fig. 2, No. 5 and No. 4). After attaching the pipe collar, the flexible foil tray is laid flat into the recess, the drain pipe is guided through the collar, and the foil tray is roughly cut to size and sealed with the surrounding composite waterproofing ( Fig. 3, No. 2) glued over a butyl sealing tape ( Fig. 3, No. 5) The shower tray, shower / bathtub, or shower board can then be professionally installed ( Fig. 3, No. 4) 8. Drawing Set - Table of Contents

[0006] The following drawings supplement the technical description of the utility model application.

[0007] "Foil tray with flexible pipe penetration for sealing below shower trays and bathtubs" Included views Fig. 1: Sectional drawing (side view) Fig. 2: Frontal sectional drawing Fig. 3: View from above

[0008] List of designations 9. List of designations

[0009] Fig. 1. Side cut 1 wall 4 Raw ceiling / floor 3 Insulation (optional) 2 Screed (optional) 5 possible pipes or conduits 6 foil trays, connections to the substrate glued with butyl tape 7 Shower tray 8 pipe penetrations, variably positionable, bonded with butyl tape Fig. 2, Section Front View 1 wall 2 Raw ceiling / floor 3 Shower tray 4 pipe penetrations, variably positionable, bonded with butyl tape 5 foil trays, connections to the substrate glued with butyl tape Fig. 3, Top view 1 wall 2 Floor / Screed 3 possibly pipes or conduits 4 Shower tray 5 foil trays, connections to the substrate glued with butyl tape 6 pipe penetrations, variably positionable, bonded with butyl tape QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited non-patent literature

[0000] DIN 18534

[0001]

Claims

[1] Foil tray for sealing below shower trays, shower or bathtubs, shower boards, or other constructions which require sealing according to DIN 18534. Characterized by a rectangular tub made of flexible, waterproof material, with welded seams and corners on all sides. [2] The system is 2-part, with a cuff ( Fig. 2, No. 4), which can be flexibly positioned at any desired location in the foil tray ( Fig. 2, No. 5), can be permanently attached using butyl adhesive tape, thus enabling a tight pipe penetration. [3] The foil tray is 4 cm longer, 4 cm wider, and 5 cm higher than the component opening to allow for easy, stress-free insertion, even with non-exact component opening dimensions, crossing cables, or pipes. [4] After rough cutting, the tub is fixed in place using butyl tape or other adhesives ( Fig. 1, No. 1 and No. 2, Fig.3, No. 5), on the surrounding waterproofing, or the substrate ( Fig. 3, No. 2). [5] It has a thickness of at least 0.3 mm. [6] No further sealing or laying of crossing lines or pipes is necessary unless required, since the foil tray ( Fig. 1, No. 6) these flexibly span in the sealing area ( Fig. 1, No. 5). [7] The foil tray is resistant to normal, household chemicals and can also be subjected to point loads by means of screed or shower / tub feet.

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