EP1918467B1 - Inspection shaft for cisterns - Google Patents

Description

The invention relates to a wall-mounted cistern with a box body in which at least one inspection opening is provided, which is connected via a tubular inspection shaft with the outside of the wall.

Such cisterns are known and are offered with different rectangular access openings, to each of which a revision shaft is connected to an actuator for the cistern. For example, is from the EP 1 647 638 A2 a wall-mounted cistern with a rectangular inspection nozzle known, which can be mounted in the horizontal and vertical direction of the cistern and whose length can be shortened according to the installation depth.

In known wall-mounted cisterns are often the holding frame, fixed for the cover plates or actuators to the wall openings. From the DE 17 09 501 a flush-mounted cistern is known in which the cover plate are secured by screws in two bolts having a threaded bore at its outer end. The bolts in turn are guided through a mounting plate and are screwed into special fasteners with threaded holes. The fasteners are in turn bolted to the side walls of the inspection opening.
Furthermore, from the DE 92 10 905 U1 and the EP0 544 616 A1 a frame for the inspection opening of a cistern with a cover plate and a Holding frame known in which the holding frame by means of special studs on the frame, which is provided for wall cladding, is attached. The studs should compensate for the different wall thicknesses. For this they have next to an external toothing a threaded hole. To fix the studs on the frame there is again a special counterpart required.

This type of construction and attachment are very complex, since many items and specially made fasteners are required. DE 92 10 905 U1 discloses the features of the preamble of claim 1.

The invention has the object to improve the wall-mounted cistern specified in the preamble of claim 1 and in particular form so that the cover plate with the associated support frame can be mounted quickly and easily.

The object is achieved with a wall-mounted cistern according to claim 1. There is a wall-mounted cistern with a box body, in which at least one inspection opening is provided, which is connected via a revision shaft with the outside of the wall and a support frame attached in the region of the inspection opening and at least one cover plate which is releasably secured to the support frame, provided, wherein the inspection shaft can be shortened to adapt to different mounting depths according to the wall thickness and wherein the inspection shaft means for fixing the support frame are provided regardless of the wall thickness.

According to one embodiment of the invention, the at least two receiving openings on the shortenable inspection shaft at the level of the outside of the provided. It is particularly advantageous that the fasteners, preferably screws in each wall-mounted cistern regardless of the wall thickness may have the same length, since the support frame rests against the outside of the wall and the receiving openings for the screws for fixing the support frame always at the protruding end of the inspection shaft are provided.

The invention provides that on the inspection shaft at least two hollow cylinders, so-called eye tubes, each with a receiving opening, a so-called screw dome, are integrated for fasteners. These can be made in one piece with the inspection shaft made of plastic. When attaching the support frame then fasteners, preferably screws can be screwed into the hollow cylinder, which then cut with its thread in the plastic and ensure a secure fit.

When you shorten the Revionsschachts doing the means that are used to attach the support frame, automatically shortened so that no additional operation to adapt the fasteners is necessary.

It is advantageous if the means for fixing the holding frame are provided on the outside of the inspection shaft. When the cover plate is removed from the support frame to access the inspection opening, the support frame can remain on the inspection shaft without disturbing screws or other fastening means protrude into the opening. The entire inspection opening is freely accessible to the craftsman.

According to a further embodiment of the wall-mounted cistern, a flange is provided on the cistern facing side of the inspection shaft at least on two opposite walls. About this flange of the inspection shaft by means of screws or locking cams, etc. attached to the cistern.

Figur 1

einen Revisionsschacht in Perspektivansicht;

Figur 2

den in Figur 1 gezeigten Revisionsschacht um 180° gedreht, in Perspektivansicht;

Figur 3

den in Figur 1 gezeigten Revisionsschacht anmontiert an einem zum Teil dargestellten Kastenkörper eines Wandeinbau-Spülkastens in Perspektivansicht;

Figur 4

einen Ausschnitt VI des Wandeinbau-Spülkastens gemäß Figur 3 in vergrößerter Darstellung;

Figur 5

den in Figur 3 gezeigten Wandeinbau-Spülkasten, wobei der Revisionsschacht auf eine individuelle Einbaulänge verkürzt ist;

Figur 6

einen Ausschnitt VI des in Figur 5 gezeigten Wandeinbau-Spülkastens in vergrößerter Darstellung;

Figur 7

den in Figur 3 und 5 gezeigten Wandeinbau-Spülkasten mit bereits angeschraubten Halterahmen in Perspektivansicht;

Figur 8

einen Ausschnitt VIII des in Figur 7 gezeigten Wandeinbau-Spülkastens in vergrößerter Darstellung;

Embodiments of the invention are illustrated in the drawings and will be described in more detail below. It shows in the drawing

FIG. 1

a revision shaft in perspective view;

FIG. 2

the in FIG. 1 shown inspection shaft rotated 180 °, in perspective view;

FIG. 3

the in FIG. 1 shown inspection shaft mounted on a partially illustrated box body of a wall-mounted cistern in perspective view;

FIG. 4

a section VI of the wall-mounted cistern according to FIG. 3 in an enlarged view;

FIG. 5

the in FIG. 3 shown wall-mounted cistern, the inspection shaft is shortened to an individual installation length;

FIG. 6

a section VI of the in FIG. 5 shown wall-mounted cistern on an enlarged scale;

FIG. 7

the in FIG. 3 and 5 shown wall-mounted cistern with already bolted holding frame in perspective view;

FIG. 8

a section VIII of in FIG. 7 shown wall-mounted cistern on an enlarged scale;

For simplicity, identical or corresponding elements are each provided with the same reference numerals in the embodiments in the drawing.

In FIGS. 1 and 2 a revision shaft 1 is shown, which has a substantially rectangular cross-section. At the one end face, a flange 10 is formed, while on the opposite side of the inspection shaft 1 is closed with a bottom 11. On the outer jacket of the inspection shaft 1 finely graded reinforcing ribs 13 are formed. The reinforcing ribs 13 allow easy cutting at the construction site to the individual installation depth of the wall-mounted cistern. To attach the inspection shaft 1 to a box body 2 of the wall-mounted cistern are facing the box body 2 Front side of the flange 10 four equally spaced pins 15 each formed with a protruding locking head 16. In addition, two diagonally formed slot-like openings 12 are formed in the flange 10, in each of which a screw for securing the inspection shaft 1 in the locking position on the box body 2 can be screwed. The four corners of the inspection shaft 1 are chamfered. There hollow cylinder 14 are each arranged with a receiving opening 17. The inspection shaft 1 is made in one piece with the flange 10 and the bottom 11 and the hollow cylinders 14 made of plastic. The hollow cylinders can therefore have different wall thicknesses depending on the reinforcing ribs 13 on the inspection shaft 1, at least on the inside. Fig. 3 shows a wall-mounted cistern with a box body 2, which is provided with a rectangular inspection opening and a inspection shaft 1. Fig. 4 shows an enlarged view of a section of the inspection shaft 1 from Figure 3 ,

After installing the wall-mounted cistern according to FIG. 3 or FIG. 4 can then the protruding from the building wall 6 part of the ReVisionSchachts 1 z. B. be cut off with a knife between two reinforcing ribs 13. In FIG. 5 the wall-mounted cistern with a correspondingly shortened inspection shaft 1 is shown. Fig. 6 shows in an enlarged view that while the hollow cylinder 14 have been shortened for receiving the screws 5 for a support frame 4. The receiving openings 17 thus close with the outside of the wall 6. Fig. 7 shows how in the shortened to the individual length inspection shaft 1 of the support frame 4 for a cover including actuating device - not shown in the drawing - are installed for the wall-mounted cistern. Fig. 8 shows in an enlarged section Figure 7 in that only threaded screws 5 are required for fastening the holding frame 4, whose length is independent of the thickness of the wall 6 or the length of the inspection shaft 1.

LIST OF REFERENCE NUMBERS

1

inspection chamber

10

flange

11

ground

12

openings

13

reinforcing ribs

14

Hollow cylinder, eye tube

15

spigot

16

Rastkopf

17

receiving opening

2

box body

4

holding frame

5

Fixing element, screw

6

Wall, building wall

Claims (5)

1. In-wall flushing cistern,

   - with a cistern body (2), and with an inspection shaft (1),

   - - wherein in the cistern body (2) there is provided at least one inspection opening (20)

   - - - which is arranged to be connected to the outside of a wall (6) by means of the inspection shaft (1),
   and

   - a holding frame (4) mounted in the region of the inspection opening (20), and

   - at least one cover plate which is detachably mounted on the holding frame (4),

   characterised in that on the inspection shaft (1) there are provided means for mounting the holding frame (4) independently of a wall thickness of the wall (6), wherein the inspection shaft (1), together with the means for mounting the holding frame (4), can be made shorter to match different installation depths in accordance with the wall thickness and wherein the means for mounting the holding frame have at least two hollow cylinders (14) each having a receiving opening (17) for fastening elements (5) for connection of the inspection shaft (1) to the holding frame (4), the at least two hollow cylinders (14) being integrated with the inspection shaft (1).
2. In-wall flushing cistern according to claim 1, characterised in that the at least two receiving openings (17) are provided on the inspection shaft (1) at the level of the outside of the wall (6).
3. In-wall flushing cistern according to at least one of the preceding claims, characterised in that the means for mounting the holding frame (4) are provided on the outside of the inspection shaft (1).
4. In-wall flushing cistern according to at least one of the preceding claims, characterised in that a circumferential flange (10) is provided on the side of the inspection shaft (1) that faces the flushing cistern.
5. In-wall flushing cistern according to the preceding claim, characterised in that the inspection shaft (1) is mounted on the cistern body (2) by means of the flange (10).

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