EP1932973B1 - Flush-mounted cistern with variable water connection - Google Patents

Abstract

The cistern (1) has a cistern cover (2) for closing an upper side of a cistern. A draining opening is formed in an upper area of a side wall of a cistern body (1.1). The opening holds a water connection. The cistern cover has a recess at an upper side. Another opening for holding the water connection is formed in the recess. The water connection is provided with a removable closure. The former opening is closable by the closure, when the water connection is mounted in the latter opening.

Description

The invention relates to a concealed cistern for a toilet bowl or the like, with a box body, the box body on the top closing cistern lid, a water connection, a drain opening and an opening formed in the upper part of a side wall of the box body opening for receiving the water connection.

Cisterns for toilet bowls are nowadays preferably installed as concealed cisterns in wall installations. Occasionally arise within a pre-wall installation difficult installation situations for the water connection to the cistern. The document EP 1 647 638 A shows a wall-mounted cistern with several water connection openings. document DE 298 06 398 U shows a cistern for corner installation.

The present invention has for its object to provide a concealed cistern, which offers the best possible use of the limited installation space, a maximum geodetic height for a high flushing capacity and a simple installation of the water connection in difficult installation situations for given dimensions of the wall installation.

This problem is solved by a concealed cistern with the features of claim 1.

The concealed cistern according to the invention comprises a box body, a box body on the upper side closing cistern lid, a water connection, a drain opening and an opening formed in the upper region of a side wall of the box body opening for receiving the water connection. Furthermore, the flush-mounted cistern according to the invention is characterized in that the cistern lid has at least one indentation in its upper side, in which a further opening for receiving the water connection is formed, which is provided with a removable closure, with which the opening in the side wall of the box body closed is when the water connection is mounted in the opening of the cistern lid.

The additional opening for receiving the water connection at the top of the cistern lid facilitates the installation of the water connection in difficult installation situations. Due to the arrangement of the additional opening in a recess of the cistern lid the available in a wall installation limited installation space is still optimally usable. Because of the flush-mounted cistern according to the invention can be arranged to achieve a maximum geodetic height for the purpose of high flushing capacity practically immediately below the top cover of the wall installation in the wall installation. In the arrangement of the water connection to the provided in the recess opening of the cistern lid results in no lower position of the concealed cistern. With the removable closure while the opening formed in the side wall of the box body can be closed.

In a preferred embodiment of the concealed cistern according to the invention it is provided that the Cistern lid has a groove which extends substantially from the formed in the cistern lid opening for receiving the water connection to one or both side walls of the cistern lid. The channel serves to accommodate a water supply leading to the water supply and ensures that with the appropriate arrangement of the water supply the maximum geodetic height of the concealed cistern remains usable within the wall installation. In particular, the channel allows a so-called grinding of the water supply, ie a guide the water pipe to the cistern and a continuation of the cistern - without stub - to the next consumer, such as an inlet fitting a washbasin.

A further advantageous embodiment of the concealed cistern according to the invention is that the closure has a tab, over which it is integrally or cohesively connected to the cistern lid or the box body. The removable closure is thus initially attached captive to the cistern. When the water connection is mounted at the opening in the recess of the cistern lid, the flap of the closure can be cut and the opening formed in the side wall of the box body can be closed with the closure.

According to a further advantageous embodiment of the concealed cistern according to the invention it is provided that the upper edge of the rear wall of the box body is at least in the region of the recess of the cistern lid lower than the upper edge of the front wall of the box body. This embodiment makes it possible with the the additional opening for the water connection indentation at the back of the cistern lid open. Furthermore, this embodiment makes it possible to form an inspection opening for disassembly or assembly of components arranged in the box body, such as the filling valve, at a location of the front wall of the box body located as high as possible, which in terms of maximizing the geodesic height of the water column and thus the Flushing is beneficial.

Further preferred and advantageous embodiments of the cistern according to the invention can be taken from the subclaims, the following description and the accompanying drawings.

Fig. 1

eine Vorderansicht eines erfindungsgemäßen Spülkastens;

Fig. 2

eine Seitenansicht der linken Seite des Spülkastens der Fig. 1;

Fig. 3

eine Draufsicht des Spülkastens der Fig. 1;

Fig. 4

eine Vorderansicht des Spülkastens der Fig. 1, wobei dessen Spülkastendeckel vom Kastenkörper abgehoben ist;

Fig. 5

eine Seitenansicht der linken Seite des Spülkastens mit abgehobenem Spülkastendeckel entsprechend Fig. 4;

Fig. 6

eine perspektivische Rückansicht des Spülkastens der Fig. 1;

Fig. 7

eine weitere perspektivische Rückansicht des Spülkastens der Fig. 1, wobei ein Verschluss aus einer im Spülkastendeckel ausgebildeten Öffnung für den Wasseranschluss entfernt ist;

Fig. 8

eine perspektivische Rückansicht eines Abschnitts des Spülkastens, wobei der Wasseranschluss in der im Spülkastendeckel ausgebildeten Öffnung montiert und der Verschluss in der für den Wasseranschluss in der Seitenwand vorgesehenen Öffnung eingesetzt ist; und

Fig. 9

eine Rückansicht des Spülkastens der Fig. 1.

The invention will be explained in more detail with reference to a drawing illustrating an exemplary embodiment. Show it:

Fig. 1

a front view of a cistern according to the invention;

Fig. 2

a side view of the left side of the cistern the Fig. 1 ;

Fig. 3

a plan view of the cistern of Fig. 1 ;

Fig. 4

a front view of the cistern of the Fig. 1 with its cistern lid lifted off the box body;

Fig. 5

a side view of the left side of the cistern with lifted Spülkastendeckel accordingly Fig. 4 ;

Fig. 6

a rear perspective view of the cistern of the Fig. 1 ;

Fig. 7

another perspective rear view of the cistern of the Fig. 1 wherein a closure is removed from an opening formed in the cistern lid for the water connection;

Fig. 8

a rear perspective view of a portion of the cistern, wherein the water connection is mounted in the opening formed in the cistern lid and the closure is inserted in the opening provided for the water connection in the side wall; and

Fig. 9

a rear view of the cistern of the Fig. 1 ,

The cistern 1 shown in the drawing is intended for wall mounting, in particular for installation in a wall installation. The cistern 1 consists of a box body 1.1 and a box body closing cistern lid 2, which is connected via a non-detachable clip connection with the box body 1.1. Box body 1.1 and cistern lid 2 are made of plastic injection molded parts. The cistern lid 2 engages over the box body 1.1. He is accordingly slightly wider and slightly deeper than the upper portion of the box body 1.1 formed.

In the upper part of the box body 1.1 are laterally projecting tabs 1.11 with mounting holes for mounting the cistern 1 on a front wall frame (not shown) formed. The fastening tabs 1.11 are arranged on the front side of the box body 1.1. Further, in the upper portion of the front wall of the box body 1.1, an inspection opening 1.12 is recessed over the components (not shown) disposed in the box body, such as e.g. the filling valve or the drain valve set is accessible for repair purposes. In the inspection opening 1.12 a plate-shaped cover 1.13 is used, which is provided with openings for actuators of an actuating plate (not shown). Below the inspection opening 1.12 of the box body is covered with a condensation protection 1.14 made of polystyrene.

As in particular in Fig. 3 it can be seen, the cistern 1 at its front a bulge 1.15 to use between the front vertical profiles (supports) of a frame-like pre-wall installation existing space for the Spülkastenvolumen. The use of this space serves to minimize the depth of the pre-wall installation. For a given cistern volume of, for example, 9 liters, the largest possible Spülkastenbreite and the greatest possible geodetic height can be achieved by the front bulge of the cistern 1 1.15 a minimum wall depth. The bulge 1.15 is realized by opposite to the plane of the mounting straps 1.11 obliquely forward angled front wall sections 1.16.

In the bottom of the box body 1.1, a drain opening is formed, on which a vertical outlet pipe 1.17 is formed. The water supply takes place via a water connection 3, which is mounted on a lateral opening of the box body 1.1. In the exemplary embodiment illustrated here, the lateral opening for the water connection 3 is formed in the upper region of the left side wall 1.18 of the box body 1.1 viewed from the front of the cistern 1.

The water connection 3 is formed from a connecting piece, a clamping flange and a union nut 3.1. It can be manually mounted and disassembled without tools on its associated opening of the box body 1.1.

The cistern lid 2 has on its upper side a recess 2.1, in which a further opening 2.2 is formed for alternative reception of the water connection 3. The water connection 3 can thus be mounted after loosening of the side wall 1.18 without accessories from above the cistern 1.

The indentation 1.21 is arranged between the inspection opening 1.12 and the opening for the water connection 3 having the side wall 1.18 of the cistern 1. The indentation 2.1 comprises a substantially planar base 2.3, in which the opening 2.2 for receiving the water connection 1.3 is arranged. How the particular FIGS. 6 and 7 show the indentation 2.1 at the back of the cistern lid 2. In contrast, the indentation 2.1 ends with respect to the front wall 1.19 of the cistern 1 at a distance.

In particular in Fig. 5 It can be seen that the top edge 1.20 of the box body rear wall 1.23 is lower than the top edge 1.21 of the box body front wall 1.19. The upper edges 1.22 of the two box body side walls extend from the top edge 1.21 of the front wall substantially obliquely downward to the top 1.20 of the rear wall 1. The cistern lid 2 accordingly has obliquely downwardly extending lower edges 2.4, which pass into a rear wall 2.51 of the cistern lid 2.

The additional opening 2.2 for alternative reception of the water connection 3 is provided with a removable closure 2.6. The closure 2.6 is lid-shaped and molded onto the cistern lid 2. It has a flexible tab 2.61, via which it is integrally connected to the cistern lid 2. Alternatively, the closure 2.6 can also be sprayed on the box body 1.1 via a flexible tab.

On its underside, the lid-shaped closure 2.6 has an annular collar 2.62. The collar 2.62 is formed undercut on its outer circumference, so that the closure 2.6 can be locked in a form-fitting manner into the respective opening assigned to the water connection 3. Outside of the karts 2.62, the closure lid 2.6 has a pin 2.63, which is plugged in closing the opening 2.2 in a hole arranged next to it 2.7 (see. Fig. 7 ). In Fig. 6 the arranged in the recess 2.1 opening 2.2 is closed by the molded on the cistern lid 2 closure 2.6.

In Fig. 7 the closure 2.6 is removed from the opening 2.2, but still connected via the molded thereon tab 2.61 with the cistern lid 2. The attached to the side wall 1.18 water connection 3 can now be dismantled and mounted on the opening 2.2. The closure 2.6 can be separated from the cistern lid 2, for example, by the tab 2.61 is severed with a knife. The opening for the water connection 3 in the side wall 1.18 of the box body 1.1 can then be closed with the lid-shaped closure 2.6, as in Fig. 8 is shown.

The cistern lid 2 has at its top inclined surfaces 2.81, 2.82, which are inclined to the side walls 2.52, 2.53 out. Furthermore, the cistern lid 2 has on its upper side a substantially horizontal surface portion 2.91, which adjoins the front edge of the lid 2, and a rear surface portion 2.92, which is inclined to the rear wall 2.51. In the top of the cistern lid 2 also an elongated trough (groove) 2.93 is formed, which serves to accommodate a water supply line (not shown), which in addition to the water connection 3 of the cistern 1 with at least one other consumer, for example with a washbasin inlet fitting can be connected.

The channel 2.93 extends substantially over the entire width of the cistern 1 and runs parallel to the rear wall 2.51 of the lid 2. The channel 2.93 crosses the recess 2.1, the base 2.3 is lower than the bottom of the channel 2.93.

The embodiment of the invention is not limited to the embodiment described above. Rather, a variety of variants are possible, which make use even with fundamentally different design of the invention marked in the accompanying claims invention.

Claims (9)

1. A flush-mounted flush box for a WC bowl or the like, comprising a box body (1.1), a flush box cover (2) closing the box body on its top, a water connecting point (3), a drain opening and an opening formed in the top portion of a sidewall (1.18) of the flush box body for receiving the water connecting point (3),
   characterized in that the flush box cover (2) has at least one recess (2.1) in its top in which another opening (2.2) for receiving the water connecting point (3) is formed which is provided with a removable seal (2.6) which can be used to close the opening in the sidewall (1.18) of the box body (1.1) when the water connecting point (3) is mounted in the opening (2.2) of the flush box cover (2).
2. The flush-mounted flush box according to claim 1,
   characterized in that the seal (2.6) comprises a strap (2.61) through which it is connected to the flush box cover (2) or the box body (1.1) integrally or in a firmly bonded manner.
3. The flush-mounted flush box according to claim 1 or 2,
   characterized in that the seal (2.6) is formed as a cap and can be snapped in a form-fit optionally into the opening (2.2) of the flush box cover (2) or into the opening formed in the sidewall (1.18) of the box body (1.1) intended for receiving the water connecting point (3).
4. The flush-mounted flush box according to one of claims 1 to 3,
   characterized in that the recess (2.1) comprises a substantially flat bottom surface (2.3) in which the opening (2.2) for receiving the water connecting point (3) is arranged which is formed in the flush box cover (2).
5. The flush-mounted flush box according to one of claims 1 to 4,
   characterized in that the flush box cover (2) comprises a channel (2.93) substantially extending from the opening (2.2) formed in the flush box cover for receiving the water connecting point (3) to one or both of the sidewalls (2.52, 2.53) of the flush box cover (2).
6. The flush-mounted flush box according to claim 5,
   characterized in that the bottom surface (2.3) of the recess (2.1) is at a lower position than the bottom of the channel (2.93).
7. The flush-mounted box according to one of claims 1 to 6,
   characterized in that the recess (2.1) opens to the back side of the flush box cover (2).
8. The flush-mounted box according to one of claims 1 to 7,
   characterized in that the upper edge (1.20) of the rear wall of the box body (1.1) is situated lower than the upper edge (1.21) of the front wall (1.19) of the flush box body (1.1) at least in the area of the recess (2.1) of the flush box cover (2).
9. The flush-mounted flush box according to one of claims 1 to 8,
   characterized in that the water connecting point (3) is composed of a connecting sleeve, a clamping flange and a spigot nut (3.1).

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