Patent Application
20050268391
The invention relates to a lavatory bowl for a WC, having a body made from ceramic or a similar material, which has a flushing rim which has a connection piece for connection of a flushing water pipe and can be connected, by way of a siphon arranged at a lower end, to a waste pipe.
Lavatory bowls made from ceramic are generally known. To enable them to be flushed, they have to be connected to a flushing water pipe. This flushing water pipe leads, for example, from a cistern into a flushing channel, into which the flushing water flows before leaving the latter through openings at the bottom. Furthermore, a lavatory bowl of this type has to be connected to a waste pipe. If the lavatory bowl also has a nozzle in the region of the odour trap for accelerating the siphon water, a further connection to a corresponding pipe is required. If a lavatory bowl of this type is wall-mounted, for example on a mounting frame, an additional difficulty during mounting is that the rear side of the lavatory bowl, on which the connections are to be made, is relatively inaccessible.
The invention is based on the object of providing a lavatory bowl of the type described which allows even simpler mounting.
In a lavatory bowl of the generic type, the invention is achieved by virtue of the fact that a connection part, to which at least one water feed pipe can be connected, is fitted into a rear recess of the body. In the lavatory bowl according to the invention, a connection part, which is in particular a plastic part, is inserted into the body, which is generally made from ceramic, from the rear side. This connection part allows a standard connection to be produced for the lavatory bowls, which are supplied in a very large number of different designs. According to a refinement of the invention, a connection part of this type preferably protrudes at the rear side of the body and allows mounting by blind plug-connection. The invention therefore allows the mounting of lavatory bowls to be standardized and simplified.
According to a refinement of the invention, the connection part has at least one extension part which can be cut to length. This further enhances the ability to adapt to different mounting situations.
According to a refinement of the invention, the connection part has a flushing water connection part and, in addition, a nozzle connection part. These two parts are preferably fixedly connected to one another. This allows simple, reliable and fast connection to a flushing flow distributor, which has a first outlet for the flushing water and a second outlet for the water to the nozzle, which can be used to accelerate the trap water in the siphon when flushing.
The connection part is preferably prefitted on the body, which significantly facilitates the work at the installation site. It is likewise preferable for a flexible pipe, which is to be connected or has been connected to the nozzle, to be pre-fitted to the connection part.
Further advantageous features will emerge from the dependent patent claims, the following description and the drawing.
An exemplary embodiment of the invention is explained in more detail with reference to the drawing, in which:
The lavatory 1 shown in
The flushing pipe 12 has a flushing flow distributor 13, which is only indicated here and feeds a predetermined amount of flushing water to a coaxial pipe 24 which is connected to a flexible pipe 7 connected to a nozzle 6 which is arranged in the region of the siphon 5. In the event of a flushing operation, this nozzle 6 accelerates the trap water 26 in a manner known per se and thereby allows flushing to be carried out using less water than usual. Therefore, some of the flushing water reaches the flushing rim 4, and another predetermined amount passes to the nozzle 6. The flushing water from the flushing rim 4 cleans the inner side of the body 3, and after the flushing operation the siphon 5 is refilled with trap water 26. The flushing water leaves the flushing channel 4 in the direction indicated by arrow 28 in
In accordance with
For connection of the two ends 12a and 24a to the body 3, there is a connection part 10 which is inserted into the connection piece 27 in a rear recess 9 of the body 3. The connection part 10 has a flushing water connection part 17, which is tightly fitted into the connection piece 27 by means of a sealing gasket 18. On the inlet side, this flushing water connection part 17 is connected to the extension part 20, which can be plugged to a sleeve 19 and is tightly connected to the flushing water connection part 17. This extension part 20 can be cut to length at the end 20a. The extension part 20 is in particular a shaped piece of plastic. As can be seen from
Moreover, the connection part 10 has an integrally formed nozzle connection part 22, into which an extension part 23 is fitted and sealed with respect to the latter by a sealing means 30. Also formed integrally on the nozzle connection part 22 is a pipe piece or connection piece 22a, at which the flexible pipe 7, which connects the nozzle connection piece 22 to the nozzle 6.
The extension part 23 is preferably likewise a shaped piece of plastic and can be cut to length at an inner end 23a. The other end 23b has a larger internal diameter and accommodates a sealing means 30, in particular a sealing gasket. This sealing gasket 30 is pushed onto the pipe connection end 24a. The sealing means 30 can be accurately positioned by suitably cutting the nozzle connection part 22 to length. The distance D, shown in
The mounting of the lavatory bowl 2 is explained in more detail below with reference to
Before the lavatory bowl 2 is connected, the mounting frame 16 is secured to a building wall 32 and a building floor 33 in a manner which is known per se. The mounting frame 16 fixes the cistern 11 together with the flushing pipe 12 and the waste pipe 15. The flushing pipe 12 is connected to the cistern 11 and is located between the cistern 11 and the waste pipe 15, as shown in
For the lavatory bowl 2 to be secured to the mounting frame 16, the latter has a cross-bar 16a, the height of which is adjustable and which has two threaded rods 16b, which are only indicated here. When the lavatory bowl 2 is being mounted, it is placed onto the threaded rods 16b. At the same time as this movement, the extension part 20 and the extension part 23 are pushed onto the ends 12a and 24a, respectively. Likewise, during this operation, an outlet connection piece 5a of the siphon 5 is pushed into the connection sleeve 14. Nuts which are not shown here are screwed onto protruding ends of the threaded rods 16b, and in this way the lavatory bowl 2 is fixed to the mounting frame 16.
If necessary, prior to mounting, the extension parts 20 and 23 are cut to length in such a way that, after mounting of the lavatory bowl 2, as shown in
The connection part 10 with the extension parts 20 and 23 is preferably prefitted to the body 3. The extension parts 20 and 23 have a maximum length and are cut to length if necessary, resulting in a suitable depth of penetration at the flushing pipe end 12a and pipe connection end 24a. The pipe connections are therefore in each case plug-fitted and in principle require no further connection or joining parts. Fitting is substantially the same with the connection part 10′.
| Number | Date | Country | Kind |
|---|---|---|---|
| 04 405 353.6 | Jun 2004 | EP | regional |
