DE102015010508B4 - Wet cell floor and process for its production - Google Patents

Abstract

Method for producing a wet cell floor made of sheet metal (1), the wet cell floor being given drainage inclinations (2), outer edges (3), a drainage recess (4) and a drainage hole (5) using forming technology and furthermore a color coating and a structured surface (6) has, characterized in that the structured surface (6) is applied to the sheet metal (1) before deep drawing.

Description

The invention relates to a method for producing a wet cell floor and the wet cell floor itself, according to the preambles of claims 1, 2, 3, and 8.

Shower trays, shower bases and bathtubs that are manufactured by deep drawing are known from the state of the art. Generally speaking, these elements can also be called wet room floors. It is also known that these wet room floors are made of sheet metal and plastic. It is also known that wet room floors are enamelled or painted.

From the document DE 10 2011 000 275 B4 is known as a sanitary tub that has a stainless steel plate (component 5) as a cover over the siphon.

In Scripture DE 20 2015 101 073 U1 In a - as it is called there - sanitary tub arrangement, an upper part (component 11) is arranged above a siphon, which is made of stainless steel, for example.

In the Scripture DE 20 2005 012 327 U1 A bathing device for animals is described which is made of stainless steel. The bathing device does not have a deep-drawn tub, but is assembled from individual parts.

In Scripture DE 10 2008 056 989 A1 A shower tray is described with a rear wall (component 100), which is provided with a stainless steel sheet in a cutout. The material from which the shower tray is made is not essential to the invention and is therefore not mentioned.

When researching the prior art, it becomes apparent that it is obviously not obvious to make a wet room floor out of stainless steel. Furthermore, according to the prior art, there is still no known cheap or simple method for applying an immovable, non-slip surface to the surface of the wet room floor.

It is therefore the object of the invention to at least minimize the disadvantages mentioned from the prior art.

The task is solved by the characteristic features - in combination with the preamble of claims 1, 2, 3 and 8. Advantageous refinements result from the subclaims.

In a first solution, a paint coating is applied to the surface before the wet room floor is deep-drawn from sheet metal, and if necessary a structured surface. Using a process - which will not be discussed in detail here - it is possible to deep-draw the sheet metal, the paint coating and the structured surface together and simultaneously without the paint or the structured surface cracking or coming off the sheet metal. It is helpful here if the sheet metal is only thin. Sheet thicknesses of 0.5 to 1.5 - preferably 0.8 to 1.0 millimeters - are advantageous. It is also advantageous if the sheet metal is made of stainless steel.

In a second solution, the edges of the wet room floor are not deep-drawn. According to the invention, the edges are folded and then welded at their joints. This has the advantage that, in contrast to other deep-drawn edges, very small, almost sharp edges are possible. As an alternative to welding, the joints can also be glued.

In a third solution, the underside of the wet cell floor is provided with an adhesive hard foam to increase the rigidity. The rigid foam essentially consists of a polyurethane-based material (PU). This foam can also be provided with plastic granules - preferably made of polystyrene. Since the hard foam is adhesive, the joints can also be glued with the hard foam.

It should also be mentioned that - if the wet room floor does not have a structured surface - the color coating can also be done after deep drawing.

All in all, a wet cell floor that can be produced cost-effectively can be achieved. According to the invention, the thickness of the rigid foam is 3 to 20 - preferably 5 to 10 millimeters.

• 1 das zugeschnittene Blech für einen Nasszellenboden im Querschnitt;
• 2 das abgekantete Blech, geschweißt/geklebt, mit Farbüberzug und mit einer strukturierten Oberfläche versehen im Querschnitt;
• 3 wie 2, jedoch tiefgezogen und gelocht;
• 4 wie 3, jedoch die Unterseite des Nasszellenbodens mit Hartschaum versehen;
• 5 einen Nasszellenboden in der Draufsicht;
• 6 Nasszellenboden mit einem zweiten Blech und Hartschaum zwischen beiden Blechen;
• 7 Nasszellenboden mit einem Hartschaumblock als untere Abschlusswand.

The invention will now be explained in more detail below with reference to the figures. Show it:

• 1 the cut sheet metal for a wet room floor in cross section;
• 2 the folded sheet metal, welded/glued, coated with paint and provided with a structured surface in cross section;
• 3 How 2 , but deep-drawn and perforated;
• 4 How 3 , but the underside of the wet room floor is provided with hard foam;
• 5 a wet room floor in top view;
• 6 Wet room floor with a second sheet and hard foam between both sheets;
• 7 Wet cell floor with a hard foam block as a bottom wall.

First of all, it should be noted that terms such as "left", "right", "top" or "bottom" refer only to the representation in the figures, but may differ from the actual arrangement in practice. It should also be noted that the figures are not purely technical drawings, which is why some hatching and break lines are missing. The relative dimensions may also differ from reality. Reference symbols not mentioned in the description can be found in the list of reference symbols. The reference symbols have the same meaning in all figures.

The 1 to 5 must be viewed as a whole. In the 1 A flat, cut sheet metal 1 can be seen, which has already been cut out in corners not shown here. These cutouts are made so that after the outer edges 3 have been folded, the sheet metal can be secured at joints 10 (see 5 ) can collide with each other without interference.

In the 2 the outer edges 3 have already been folded. The joints 10 are already welded or glued (see 5 ). The still flat surface 8 has already been coated with paint. This color coating can be done by coating - especially powder coating - and painting. Furthermore, a structured surface 6 has been attached to the top. This surface 6 can be designed using 3D printing, as a film or as a plate. Tile patterns, wooden structures, etc. can be used as designs. The aim of these structured surfaces is a non-slip top 8 of the wet cell floor.

Since it is not possible with current technology to apply a 3D print to a non-flat surface, the 3D print must be applied before deep drawing. The inventors have recognized that films and structural panels also survive the deep-drawing process without damage, which is why these materials are also suitable for applying flatly to the not yet deep-drawn surface 8 of the wet cell floor.

In the 3 deep drawing has already taken place. The surface is provided with drainage slopes 2 and a drainage recess 4. To explain: The drain slopes 2 are the areas between the light or embossed edges 15 (see 5 ). The drainage hole 5 can be made before, during or after deep drawing. The great advantage of the inventive method is clearly visible here: The structured surface 6 lies flat on the surface 8 and does not have to be manufactured in a separate manufacturing process as a negative copy of the surface 8.

In the 4 the wet cell floor has already been attached to its underside 7 with a hard foam 9. A flat underside of the hard foam 9 is not important here. The only important thing is that the rigid foam gives sheet metal 1 of the wet cell floor sufficient stability.

On the description of the 5 can be omitted here because it is already used again and again in connection with the other figures 5 was received.

With the 6 A second variant of the wet cell floor is shown. Here, a second sheet metal 11 has been clamped sealingly between the outer edges 3 in the underside 7 of the wet cell floor. This bleach 11 then lies sealingly on the underside of the drain recess. The rigid foam is injected or vented into the space between the sheet 1, the outer edges 3 and the second sheet 11 through filling and venting openings 12. The advantage of the second floor 11 is that the amount of hard foam can be limited to a defined value. So you don't waste any hard foam and at the same time you have a defined rigidity of the wet cell floor.

With the 7 A variant of the wet cell floor is shown. Here the second base 11 consists of a plastic block 13. This block 13 also seals off the outer edges 3 and the underside of the drain recess 4. The plastic block 13 has the advantage that it is cheaper to produce than a second sheet 11.

It is understood that the above-mentioned features of the invention can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the invention.

Reference symbol list

1

sheet

2

Drain slopes

3

outer edges

4

Process deepening

5

drain hole

6

structured surface

7

bottom

8th

Top

9

Hard foam

10

Joints

11

second floor

12

Filling or venting opening

13

Plastic block

14

Weld

15

Light edge/embossed edge

Claims (15)

Method for producing a wet room floor from sheet metal (1), wherein the wet room floor is given drainage slopes (2), outer edges (3), a drainage recess (4) and a drainage hole (5) by means of forming technology and furthermore has a paint coating and a structured surface (6), characterized in that the structured surface (6) is applied to the sheet metal (1) by application before deep drawing. Method for producing a wet cell floor made of sheet metal (1), the wet cell floor being given drainage inclinations (2), outer edges (3), a drainage recess (4) and a drainage hole (5) using forming technology and furthermore a color coating and a structured surface (6) has, characterized in that the outer edges (3) are produced by folding, whereby the edges (3) are angled at approximately 90 °, which creates a groove at the joints (10) for a possible weld seam (14) or gluing . Method for producing a wet cell floor made of sheet metal (1), the wet cell floor being given drainage inclinations (2), outer edges (3), a drainage recess (4) and a drainage hole (5) using forming technology and furthermore a color coating and a structured surface (6) and is provided on the underside (7) of the wet cell floor with an adhesive hard foam (9) to increase the rigidity, characterized in that the hard foam (9) is injected into a cavity below the sheet (1). Procedure according to Claim 2 , characterized in that the joints (10) of the outer edges (3) are glued. Procedure according to Claim 2 , characterized in that the joints (10) of the outer edges (3) are welded. Procedure according to Claim 3 , characterized in that the cavity is formed by the upper sheet (1), the outer edges (3) and a second base (11) made of sheet metal which is clamped in a sealing manner, and that the rigid foam (9) is injected into this cavity. Procedure according to Claim 3 , characterized in that the cavity is formed by the upper sheet (1), the outer edges (3) and a plastic block (13) which is clamped in a sealing manner, and that the rigid foam (9) is injected into this cavity. Wet cell floor, manufactured according to at least one of the processes claims 1 until 3 , whereby a rigid foam (9) is adhesively arranged on the underside (7) of the sheet (1), characterized in that a structured surface (6) is applied as an additional layer on the top side (8) of the sheet (1). Wet room floor after Claim 8 , characterized in that the sheet (1) is made of stainless steel. Wet cell floor Claim 8 or 9 , characterized in that the sheet (1) has a thickness of 0.5 to 1.5 millimeters - preferably 0.8 to 1.0 millimeters. Wet room floor after at least one of the Claims 8 until 10 , characterized in that the rigid foam (9) essentially consists of a polyurethane-based material. Wet room floor after at least one of the Claims 8 until 11 , characterized in that the structured surface (6) is designed as a decoration. Wet cell floor Claim 12 , characterized in that the decor is produced using digital printing. Wet cell floor Claim 12 , characterized in that the decor is designed as a film or plate. Wet room floor after at least one of the Claims 8 until 14 , characterized in that the rigid foam (9) has an average thickness of 3 to 20 - preferably 5 to 10 - millimeters.

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