ES2654887T3 - Recessed box with plaster thickness compensation - Google Patents

Abstract

Recessed box for mounting and installation of a sanitary faucet, comprising - a base (17), - side walls (1) adjacent to the base (17), which have at least one passage opening (4) for a water conduit, and - a collar (10), which has a cylindrical shape with a closed perimeter, which is supported along its perimeter on the side walls (1), protrudes with its leading edge (11) on the edge front (6) of the side walls (1) of the recessed box and can be fixed on the recessed box with different distance from the base (17) of the recessed box, characterized by the fact that - the collar (10) has an outer diameter not increasing in the direction of the leading edge (11) with a smooth outer side without projections extending radially outward.

Description

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Recessed box with plaster thickness compensation

[0001] The invention consists of a recessed box for the assembly and installation of a sanitary tap.

[0002] It is known that the so-called recessed sanitary fittings are used for the placement of recessed boxes under plaster, which must protect the faucet itself during the finishing of the wall. In part it may be convenient to place in such built-in boxes also basic faucet bodies, on which the accessories themselves will be placed later. The shape of these recessed boxes does not have to be a real box shape but can also be formed in a cylindrical shape or otherwise.

[0003] Recessed boxes are normally sized in such a way that their side walls for all possible applications protrude over the surface of the rear wall. This protruding part serves as a limitation of tiling. After finishing the wall surface and optionally also after placing other taps, the part of the side wall of the recessed box that protrudes above the surface of the wall is separated. This must happen with great precision, since on the one hand the side wall cannot protrude over the surface of the wall and on the other hand it must not be engraved too deeply, since the recessed boxes must also offer protection from the wall against water that condenses in the built-in box.

[0004] In such a recessed box known from EP 1 006 244 A2, the side walls extend on fixing eyelets forward widely outside, so that separation can occur there.

This built-in box has a circular straight cylinder shape and is formed in one piece.

[0005] Another recessed box for a known sanitary faucet of DE 42 17 529 A1 is composed of two halves divided along a longitudinal central plane. Also here the side wall in front of a flange extends widely forward, so that it can be there and has to be separated.

[0006] In these known built-in boxes, therefore, after finishing the wall and mounting the sanitary fittings, the part of the side walls of the built-in box that protrudes above the front part must be separated. This must happen with great precision. The separate part of the side walls should be discarded.

[0007] In the fascicle of utility model DE 69 00 887 a mixer tap with a recessed box is disclosed, where there a basic body of the faucet is firmly attached to the recessed box, especially with a box base adapted to the contour of the basic battery body, where the base is surrounded by a frame, which in turn is closed by a cover, from which there are handles and one or more exits of the mixer taps. At its front edge the frame has a flange that protrudes radially outward, on which the cover is formed or is fixed, for example, by bolted joints. The frame can be fixed to the side walls of the box in a way adjusted in height and in a desired position by means of fastening screws.

[0008] In patent DE 10 2004 060 744 A1 a recessed housing constituted of elastic rubber material according to the preamble of claim 1 is disclosed, where a side wall section is formed as a bellows or a thrust connection is provided between a lower and upper area of the box and the side wall has a relatively wide annular sealing lobe near its leading edge, which protrudes radially, which in the assembled state can be placed sealed against an inner side of a tiled wall.

[0009] The invention is based on the task of creating a possibility of simplifying the assembly of sanitary fittings.

[0010] For the solution of this task the invention proposes a recessed box with the characteristics mentioned in claim 1. This can be used very advantageously for the assembly and installation of a sanitary tap.

Improvements of the invention are the subject of secondary claims.

[0011] The recessed box, which can be of any shape, contains at least one passage opening in the side walls, through which a feed conductor can be taken to the faucet inside the recessed box. The collar, which can be moved with a variable distance outwardly from the side walls forward or upward, makes it possible to move the leading edge at the beginning of the assembly as widely as possible outwardly, in order to ensure protection of the internal space during The finish of the wall. Once the wall is completed, the collar moves so far backward until its leading edge has taken the right position facing the wall. The leading edge then extends for example flush with the surface of the wall. According to the invention, the collar has a cylindrical shape, open on the front side, eg a circular straight cylinder shape, with an outside diameter that preferably remains constant in

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axial direction and in any case does not increase in the direction of the leading edge, so that it can be moved backwards as desired once the wall surface is completed.

[0012] The collar according to the invention is formed in such a way that on its outer side it is smooth, that is, it does not have projections projecting radially outwards. In this way, it is possible, in a particularly good way, to treat and finish the surface of the wall to the collar directly and to move the collar backwards to a desired extent once the wall surface is completed.

The way in which the collar can be fixed in different distance positions, can be done in various ways. For example, an insert is possible at different intervals, or a connection with a thread, as long as it is a cylindrical recessed box.

The preferred way of changing the distance by the invention may be to guide the collar in a moveable manner over the side walls of the recessed box. This allows not only a continuous change of distance, but also possible with any form of recessed box. A movement can occur, for example, so that the collar is superficially in contact with the side walls of the recessed box.

It has already been mentioned that built-in boxes can also offer protection against condensation. For this purpose, it is possible to provide an improvement of the invention, which provides a circular seal that acts between the collar and the side walls and rests on both sides with a certain prestressing. This results in the possibility of mobility and simultaneously a certain blockage.

[0013] Particularly it may be provided in further development, that this sealing is provided in the collar, for example, in the form of a closed circuit seal, which is arranged in a closed circuit slot.

[0014] It has been proven useful that the collar is arranged on the inner side of the side walls, even when in special cases an arrangement on the outer side of the side walls is also possible.

[0015] In order to continue facilitating the assembly of the sanitary fittings using the recessed box and for simplification, it can be provided according to the invention that the collar is secured forward against an extraction.

[0016] It is possible that the recessed box is factory fitted with the collar, so that it no longer has to be mounted on site. However, it is also possible, that it is only mounted on the site of the work. In addition, it may be necessary to remove the collar and replace it. Therefore, an alignment device for the correct adjustment of the collar against the recessed box can be provided in a refinement of the invention.

[0017] According to the invention, it is possible to provide in a refinement that the recessed box has a torsional protective device, to prevent a rotation of the collar in front of the recessed box, in case, for example, that the recessed box has a circular cylinder .

This can be useful, when the collar also serves to correctly align the recessed box, for example, horizontally.

[0018] The recessed box can present in an improvement of the invention devices for fixing in it or on it faucet parts.

[0019] In order not to damage the variability of the collar, these fixing devices must be configured so that they are not in the path of the collar. Therefore, they are arranged either in an area of the side walls where the collar is not moved, or can be fixed to the floor of the recessed box, which is preferred in the invention.

[0020] Particularly, it can be provided in an improvement of the invention, that the fixing device has a crown, which adapts to the floor of the recessed box.

[0021] This crown can be adapted to the ground in such a way that it has a distance from the inner side of the side wall, which corresponds to the corresponding dimensions of the collar. Therefore, the crown can also contribute to a better conduction of the collar, as long as it is arranged on the inner side of the side wall. In case the collar is arranged on the outer side of the side walls, the crown can also pass to the side wall.

[0022] Additionally, the crown can be used to form a part of the alignment device and / or torsional protective device of the recessed box. For example, the collar may have two souls on its inner side, which include a crown in case the collar is inserted.

[0023] Also the device for preventing the removal of the collar from the recessed box can engage with the crown.

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[0024] According to the invention it can be provided that the recessed box consists of floor and plastic side walls, also the collar. Material combinations are also possible.

[0025] In a further refinement of the invention it can be provided that the depth for insertion of the collar is also limited by a stop.

[0026] It has already been mentioned that the recessed box can have any shape. According to the invention, it can have, as well as the collar, the shape of a cylinder, particularly a circular cylinder.

[0027] So that during the finishing of the surface of the wall, that is, during plastering, laying of slabs or building, the recessed box does not fold inwards, which could then prevent an introduction of the collar, the recessed box it consists in a refinement of the invention in a material, which makes it stable in the form, e.g. ex. a hard or rigid plastic material.

[0028] Other features, details and advantages of the invention result from the claims, the text of which has been incorporated into the description by reference, from the following description of preferred embodiments as well as with the aid of the drawing.

In this regard they are shown:

Figure 1

A perspective representation of a recessed box according to the invention;

Figure 2

A longitudinal cut of a recessed box with basic body of the sanitary tap inserted and collar removed to the maximum;

Figure 3

The cross section of Figure 2 with collar inserted to the maximum;

Figure 4

A view from above on the recessed box;

Figure 5

A cut interrupted through the arrangement of Figure 4.

[0029] The recessed box depicted in perspective in Figure 1 has continuous cylindrical circular side walls 1, on whose outer part ribs 2 with grooves 3 are arranged that extend in the perimetral direction. These are used for the placement of other fixing means. In the side walls 1, passage openings 4 are arranged, through which the water pipes can be carried inside the recessed box 1. On the outer side of the side walls 1, in the area of the base not visible in figure 1, external fixing eyelets 5 have been formed, with the help of which the recessed box can be brought to the floor of a cavity in a wall.

[0030] The leading edge 6 of the side walls 1 opposite the bottom is at a level that extends parallel to the bottom.

[0031] In the recessed box, a basic body of sanitary fittings with a clamp cover 7 fixed thereto is arranged in the example shown.

[0032] A plurality of crowns 8 are arranged inside the recessed box, which form a single piece with the base and at its upper end opposite the base have a nut for inserting 9. These crowns are used to firmly screw fittings to the built-in box The crowns, as will be shown below, form a single piece with the base, with a certain distance from the inner side of the side walls 1.

[0033] Between the crowns and the side walls 1 a collar 10 is provided in the recessed box, which is arranged and concentrically configured to the side walls 1 and protruding with its leading edge 11 over the leading edge 6 of the side walls 1 At four points evenly distributed on the perimeter, the collar 10 respectively has a narrow projection 12, which can be used for the alignment of a water level. On the inner side of the collar 10 there are formed souls 13 directed radially inwardly, which respectively include a crown 8. In this way the collar 10 is secured against a rotation about the axis of the recessed box. These souls 13 are available in the embodiment shown in all crowns 8.

[0034] In one of the two souls 13 to which a crown 8 has been associated respectively, a latch 14 is adapted, which extends in the perimeter direction. This slides in a flattening 15 on the inner side of the crown 8. This bolt 14 forms a security against the removal of the collar 10 up or forward in a state of vertical mounting.

[0035] Now we refer to the representation of Figure 2. This shows a cut through the recessed box in a plane in which the axis 16 of the recessed box is located. The bottom 17 of the recessed box is flat. To the right and to the left there is respectively an opening of step 4, in which

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inserted an annular gasket 18. The two annular gaskets 18 seal the connection fittings 19 of a basic sanitary fitting body 20. The basic body of the sanitary fittings serves to form connections with the ducts in the wall and form a base with which the sanitary faucet itself is connected after assembly.

In the represented state not yet assembled, the tightening cover 7 already mentioned was screwed onto the basic body of the sanitary fitting 20 with the help of a screw 21. The tightening cover 7 forms steps 22, with the aid of which the tightness can be checked of the domestic installation.

[0036] The collar 10 has a leading edge 11 located at the same level with the exception of the protrusions 12. From Figure 2 it can be deduced that this leading edge 11 is at a level that extends parallel to the bottom 17.

On its outer side the collar has in the area of its rear edge opposite the bottom a rib 23, which contains a groove, in which an annular gasket 24 is placed. This annular gasket 24 protrudes partly over the front part of the rib 23 and rests with a certain surface pressure against the inner side of the side walls 1. Thus not only a waterproofing takes place, but also a fixing of the collar 10 in front of the side walls 1 of the recessed box.

[0037] The position shown in Figure 2 of the collar is the position, in which the collar acquires the maximum distance from the bottom 17 of the recessed box. In this position, the collar 10 is prevented from moving outside the recessed box so that the bolts 14 rest on a support piece of the crowns 8. The recessed box is brought to this position when the tiling of the wall.

[0038] In the event that the collar 10 is fully pushed into the recessed box inwards, then its rear edge 26 is on a step 27 formed on the inner side of the side walls 1. This position is shown in the figure 3. In figure 3, the edge 28 of the crowns 8 formed at the end of the flattening 15 can also be seen. This bode 28 forms, together with the locks 14, the security against the removal of the collar 10 from the recessed box.

[0039] From the view from above of figure 4, the joint action between the souls 13 and the crowns 8 is again evident, as well as the fact that the collar 10 is arranged between the side walls 1 and the crowns 8.

[0040] Figure 5 shows a section through the side wall 1 and the crown 8 arranged next to this side wall.

The crown 8 forms a single piece with the base 17 of the recessed box and has a distance to this side wall 1. The collar 10 is housed in this intermediate space 29. The crown 8 has on its side that faces the wall side 1 a step 30, which also represents a limitation for the thrust movement of insertion of the collar 10, as well as the step 27, which is indicated in Figure 2 and Figure 3.

[0041] The projections 12 already mentioned in the leading edge 11 of the collar 10 serve to ensure a horizontal or vertical alignment of the recessed box and in the example also shown of the basic body of the sanitary taps contained therein. For this purpose, a bubble level is placed on the projections, which then protrude in front of the leading edge 11 arranged perpendicularly.

Claims (15)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 REIVIN DI CACION EN 1. Recessed box for the assembly and installation of a sanitary tap, comprising - a base (17), - side walls (1) adjacent to the base (17), which have at least one passage opening (4) for a water pipe, and - a collar (10), which has a cylindrical shape with a closed perimeter, which is supported along its perimeter on the side walls (1), protrudes with its leading edge (11) on the leading edge (6) of the side walls (1) of the recessed box and can be fixed on the recessed box with different distance from the base (17) of the recessed box, characterized by the fact that - the collar (10) has a non-increasing outer diameter in the direction of the leading edge (11) with a smooth outer side without projections extending radially outward. 2. Recessed box according to claim 1, wherein the collar (10) is movably driven on the side walls (1) of the recessed box. 3. Recessed box according to claim 1 or 2, wherein the collar (10) has a perimeter seal (24), supported tightly on the side walls (1) of the recessed box. 4. Recessed box according to any of the preceding claims, wherein the collar (10) is arranged on the inner side of the side walls (1). 5. Recessed box according to any of the preceding claims, wherein the collar (10) is secured against removal of the recessed box. 6. Recessed box according to any of the preceding claims, with an alignment device for angular adjustment of the collar (10) against the recessed box. 7. Recessed box according to any of the preceding claims, with a torsion protective device to prevent torsion of the collar (10) in front of the recessed box. 8. Recessed box according to any of the preceding claims, with a fixing device for fixing taps to the recessed box. 9. Recessed box according to claim 8, wherein the fixing device has at least one crown (8). 10. Recessed box according to claim 9, wherein the crown (8) forms a single piece with the base (17) of the recessed box. 11. Recessed box according to claim 9 or 10, wherein the safety device for preventing the removal of the collar (10) engages with the crown (8). 12. Recessed box according to one of claims 9 to 11, wherein the alignment device and / or the torsion protection device engages the crown (8). 13. Recessed box according to any of the preceding claims, wherein the recessed box and / or collar (10) consists of plastic. 14. Recessed box according to any of the preceding claims, wherein the side walls (1) of the recessed box have a cylindrical shape, particularly a circular cylinder. 15. Recessed box according to any of the preceding claims, wherein the recessed box is of a material stable in shape.