DK1692349T3

DK1692349T3 - Built-in device for sanitary fittings

Info

Publication number: DK1692349T3
Application number: DK04820591.8T
Authority: DK
Inventors: Gerhard Pülmanns; Bernd Assenmacher
Original assignee: Hansa Armaturen Gmbh
Priority date: 2003-12-12
Filing date: 2004-11-15
Publication date: 2019-01-14
Also published as: WO2005061806A1; DE10358119B4; EP1692349B1; DE10358119A1; EP1692349A1; ES2695735T3; AU2004303479A1

Description

INSTALLATION DEVICE FOR SANITARY APPLIANCES

The invention relates to an installation device for sanitary appliances, in particular for concealed combination fittings, comprising a housing that can be arranged in an opening of a wall of a building, in which housing a connection device of a sanitary appliance can be arranged, which connection device has at least two connection openings, said connection openings of the connection device of the sanitary appliance being connectable by connection means of the installation device to water-carrying pipes in the building wall.

The term "water-carrying pipes" is understood herein to mean pipes disposed in a wall of a building and supplying water to or draining water from the sanitary appliance ultimately installed. They may therefore be domestic pipes carrying cold water, hot water or mixed water.

During the installation of sanitary devices the end user should be left free for as long as possible to decide whether, for example, a single-lever combination fitting, a multi-way valve or a thermostatic mixer is to be installed. To this end it is known to associate sets of fittings having different functions with a universal installation device. The latter is recessed in an opening in a wall of a building and connected to the water carrying domestic pipes. The installation device is used to house a connection device of the sanitary appliance finally chosen from the set and connects said sanitary appliance to the domestic pipes.

The connection device of the sanitary appliance may be an appliance housing in which the cartridge of a selected sanitary appliance is in turn inserted. It is also possible that the cartridge itself is introduced directly into the installation device and forms the connection device of the sanitary appliance. Equally, an adapter connecting the installation device to the cartridge may serve as the connection device of the sanitary appliance, as disclosed, for example, in DE 196 22 361 Al, an installation device of the type mentioned at the outset being used in this case.

The installation device for sanitary appliances described in that document includes connections between the connection openings of the sanitary appliance and a cold water supply, a hot water supply and two mixed water discharge outlets. The connections are formed as passages in the housing of the installation device and are therefore connected inseparably to the installation device. This installation device is a relatively heavy metal body the internal water-carrying passages of which require a highly complex and costly manufacturing process.

Different connection devices of sanitary appliances which fit an installation device may have a different number of connection openings, the connection device of a bath appliance may have connection openings for a cold water supply, a hot water supply and two mixed water discharge outlets. One of the latter leads, for example, to the bath outlet of the appliance and the other to a shower.

On the other hand, the connection device of another appliance may have only one connection opening for only one mixed water outlet.

However, the installation device of DE 196 22 361 Al, which fits both connection devices, can be adapted only to said connection devices, a mixed water outlet which is not required the being closed by a plug. This means, firstly, that the installation device is manufactured in a uniform manner with always the same, partly unnecessary, material need. Secondly, it leads to further consumption of material and increased cost if a superfluous connection has to be closed by a blind plug.

Otherwise, different installation devices would need to be produced, which is highly costintensive and runs counter to the concept of a uniform installation device for as many applications as possible.

Furthermore, an installation device is known from EP 0 590 960 Al, disclosing the features of the preamble of claim 1.

From DE 36 25 131 Al a flash mounted box is known, in which the sanitary fitting is connected with flexible pipes to the connection pieces provided in the housing.

From US 6,547,285 BI an installation device is known comprising an integrally formed connection body with forward facing connection openings. The connection body contains various passage channels.

Likewise from DE 100 45 242 Al an installation device is known with a connection body that includes multiple passage channels.

From DE 87 09 456 Ul an installation device is known, in which intermediate pipework pieces arranged sideways at the housing are connected to a sanitary valve. The openings of the intermediate pipework pieces lying inside and the pipework pieces lying outside are aligned.

From DE 33 27 829 Al an installation device is known in which a sanitary valve is clamped between lateral metal beams, which at the same time connect access and drain lines to lateral connection openings of the sanitary valve.

It is the object of the present invention to provide an installation device for sanitary appliances of the type mentioned in the introduction which is suitable for sanitary appliances differing from one another, saves material and can be manufactured cost-effectively.

This is achieved by an installation device according to the claim 1.

According to the invention this is achieved in that at least one connection means is a part separate from the housing and can be introduced into the housing selectively.

It is thereby ensured that the installation device can be adapted to different sanitary appliances having a different number of connection openings, since only the necessary number of connection means must be used. This logically gives rise to a saving of material, as no surplus material is present. An additional plug to close a superfluous connection means of the installation device is not required. In addition, the production of small individual parts is more cost-effective than that of massive components having a complicated internal structure, as is usual with known installation devices.

Providing the connection means as a connecting means ensures that the connection means have a geometrically relatively simple shape. Such connecting pieces can be manufactured quite easy and cost-effective.

By allowing the connecting piece to be inserted into the outer wall of the housing to such an extent that the connection opening of the connecting piece inside the housing and the fastening means of connecting piece outside the housing is ensured that the openings of the connecting pieces are positioned as needed during the fitting of the installation device.

The measure according to claim 2 permits the selective connection to the installation device of up to four domestic pipes, making the installation device adaptable to many sanitary appliances.

The configuration of the connecting pieces according to claim 3makes them adaptable to particular installation requirements.

It is advantageous if the connecting pieces according to claim 4 are made of plastics material, as they can then be produced using, for example, the injection moulding process.

To achieve a sufficiently strong fixing of the connecting pieces in the housing it is advantageous to fix said connecting pieces inside the housing by means of a guide element according to claim 5.

The manufacture of the installation device is further simplified and therefore more cost-effective if the guide element forms part of a retaining device that can be arranged in the housing, as described in claim 6.

The connecting piece can be fixed very simply if it and the guide element are configured according to claim 7.

The connection device of the sanitary appliance can be inserted easily into the installation device if a fixing and guide device according to claim 8, which guides the connection device radially, is provided.

It is cost-effective and advantageous in terms of production technology if the fixing and guide device is arranged on the retaining device, as per claim 9.

It is a favourable measure to configure the retaining device as a retaining plate according to claim 10.

It is advantageous if the retaining plate is made of thin sheet metal as per claim 11. The retaining plate can then be produced very simply by punching.

An alternative measure is to configure the retaining device as a retaining barrel as per claim 12.

It is cost-effective if the latter is a plastics injection moulding according to claim 13.

To secure the connecting pieces to the housing it is advantageous to provide a fixing device according to claim 14, which prevents the connecting pieces from being pulled out radially.

Installation and removal are simplified if the retaining device is fixed detachably by means of at least one fixing element according to claim 15.

Material is saved if the fixing device is fixed detachably in the housing by the fixing element which also fixes the retaining device, as per claim 16.

The fixing element is easy to handle if it is made of elastic material as per claim 17.

The enhancement according to claim 18, whereby a bayonet 10 fastening which fixes the retaining device of the sanitary appliance axially is provided, enables the connection device to be fixed within the housing in a simple manner.

It is again advantageous with regard to manufacture if the fixing and guide device forms part of the bayonet fastening as per claim 19.

By providing an assembly plug according to claim 20, it is achieved that the connecting pieces are fixed during assembly and that the domestic pipes can be tested for liquid-tightness in known fashion.

It is advantageous if the assembly plug is fixable detachably to the retaining plate as per claim 21.

The assembly plug can be manufactured at low cost if it is made of plastics material as per claim 22.

Through the measure according to claim 23 the installation device can be used when recessed at different depths in the building wall. This allows for the fact that domestic pipes are not always disposed at the same depth in the building wall.

Given an axial extension of at least 10 cm as per claim 26, the capability to be recessed at different depths is ensured in general for usual installation depths of the installation device in installation openings in walls of buildings.

The part of the housing projecting from the opening in the building wall can be easily separated if the housing is made of plastics material as per claim 27. In addition, the housing can be simply and cost-effectively manufactured from this material. Furthermore, the use of plastics material results in low weight of the housing, which is advantageous during installation.

Embodiments of the invention are explained in more detail below with reference to the drawings, in which:

Fig. 1 is a perspective view of an installation device for sanitary appliances having four connecting pieces, two of which are inserted in the installation device, a part of the housing being cut away for greater clarity;

Fig. 2 is a plan view of the installation device in the direction of the arrow A of

Fig. 1, all four connecting pieces being inserted in the installation device and their connection openings being closed with an assembly plug;

Fig. 3 shows a section along the line III-III of Fig. 2;

Fig. 4 is an exploded view of a further embodiment of the installation device for sanitary appliances, two out of four connecting pieces being inserted in an alternative retaining device;

Fig. 4a shows a fixing element for fixing the retaining device of Fig. 4 in the housing of the installation device;

Fig. 5 is a perspective view of the assembled installation device of Fig. 4, a part of the 20 housing being cut away for greater clarity;

Fig. 6 is a plan view of the installation device in the direction of the arrow B of

Fig. 4, all four connecting pieces being inserted in the installation device and being fixed by a fixing ring, and

Fig. 7 shows a section along the angled section line VII-VII of Fig. 6.

Fig. 1 shows an installation device 1 for sanitary combination fittings. The installation device 1 includes a cup-shaped housing 10 made of plastics material and having a cylindrical peripheral wall 12 and a rear wall 14. On the side facing away from the rear wall 14 the housing 10 has an opening 16. The thickness of the cylindrical peripheral wall 12 increases from the opening 16 towards the rear wall 14.

In the vicinity of the rear wall 14 the housing 10 is provided with four housing openings in the form of stepped bores 18 which are arranged offset at 90° to one another around the circumference of the peripheral wall 12.

Located in the housing 10 at the level of the stepped bores 18 is a retaining device in the form of a retaining plate 20 having a substantially octagonal base portion 21. The retaining plate 20 is so inserted in the housing 10 that the stepped bores 18 in the cylindrical outer wall 12 are each located opposite a lateral edge of the base portion 21, but without the retaining plate 20 itself being directly fixed to the housing 10. The retaining plate 20 is made of thin sheet metal.

On each of the four lateral edges of the base portion 21 facing towards the stepped bores 18 is arranged a fixing and guide device 22 which serves to fix and radially guide the connection device (not shown) of a sanitary combination fitting. For this purpose a section 24 disposed perpendicularly to the base portion 21 of the retaining plate 20 is bent radially inwards to form a section 26 which ends in an arcuate edge 28.

As can be seen in Fig. 3, the sections 26 of the guide devices 22 are not disposed parallel to the base portion 21 of the retaining plate 20, but obliquely thereto.

The sections 24 of the guide devices 22 have an arcuate recess 29, the diameter of which corresponds approximately to the smaller diameter of the stepped bore 18 in the housing 10 and is at least sufficiently large for a part of a connecting piece 40, described below, to be passed through the recess 29.

The base portion 21 of the retaining plate 20 has four openings 32 which each lead radially inwards from the lateral edges of the base portion 21 facing towards the stepped bores 18, join the openings 29 of the sections 24 and end with a semicircular edge 34. The width of the opening 32, and therefore the diameter of the semicircular edge 34, is smaller than the smaller diameter of the stepped bore 18.

The edges of the openings 32 form together guide elements 30 which serve to receive a respective connecting piece 40 mentioned below.

At the center of the base portion 21 the retaining plate has a threaded bore 36.

Fig. 1 shows four identical connecting pieces 40, two of which are located outside the housing 10 and two of which are introduced through the stepped bores 18 into the housing 10. A central portion 42 of such a connecting piece 40 leads at one end to a portion 44 angled at approximately 90° and at the other end to a stepped portion 50. Formed on the stepped portion 50 is a fixing hexagon 52 with the aid of which a water-carrying pipe from the building (not shown) is fixed to the connecting piece 40. For this purpose the fixing hexagon 52 has a threaded bore 54.

As can be seen in Fig. 3, a water-carrying through passage 46, which opens at its radially inner end into a connection opening 48 in the form of a stepped bore in the portion 44 of the connecting piece 40, extends axially through the stepped portion 50 and the central portion 42 of the connecting piece 44. The axis of the connection opening 48 is disposed perpendicularly to the axis of the through-passage 46. At its other end the through-passage 46 opens into the threaded bore 54 of the fixing hexagon 52.

Starting from the stepped portion 50, the outer wall of the central portion 42 of the connecting piece 40 has two opposed parallel groove sections 56a, 56b disposed in the plane perpendicular to the axis of the connection opening 48 in the portion 44 of the connecting piece 40.

The groove sections 56a, 56b are connected by a further groove section 56c in the peripheral wall of the portion 44 of the connecting piece 40 to form a single U shaped groove 56. The latter is so configured that the groove sections 56a, 56b of the connecting piece 40 can be slid along the parallel edges of the opening 32 of the retaining plate 20. As this happens the connecting piece 40 passes partially through the opening 29 of the corresponding fixing and guide device 22.

When the connecting piece 40 has been slid fully into the opening 32 of the retaining plate 20 the stepped portion 50 of the connecting piece 40 extends through the stepped bore 18. The semicircular edge 34 of the opening 32 engages in the respective groove section 56c. Radial sealing of the connecting piece 40 thus inserted into the housing 10 is effected in each case by O-rings (not shown) which are placed in the stepped bores 18 of the housing 10 prior to insertion of the connecting piece 40.

The connecting piece 40 is thereby fixed in the axial and circumferential directions and bears via the above mentioned 0-ring against the stepped bore 18.

Figs. 2 and 3 show the installation device 1 with four inserted connecting pieces 40, an assembly plug 57 being inserted in the connection openings 48 of the connecting pieces 40. The assembly plug 57 consists of a plate 58 which has four projections 59, each of which fits into a connection opening 48 of the connecting piece 40. Located in each of the projections 59 is an external peripheral groove 60 disposed parallel to the plate 58 and able to receive an O-ring (not shown). The connection openings 48 of the connecting piece 40 are thereby sealed when the assembly plug 57 is inserted.

The plate 58 of the assembly plug 57 has a centrally arranged bore 61. By means of a screw 62 passing through the bore 61 and engaging in the threaded bore 36 of the retaining plate 20, the assembly plug 57 is fixed detachably to the retaining plate 20.

Prior to assembly of the installation device 1 it is normally known which basic type of sanitary appliance is to be fitted after the shell construction. For example, if the sanitary appliance is a bath fitting, its associated connection device has, as a rule, four connections to be connected to water-carrying pipes. These are a connection for cold water supply, a connection for hot water supply and two connections for mixed water discharge. The two mixed water discharge outlets lead, for example, to the bath outlet of the fitting respectively to a shower.

For this reason four connecting pieces 40 are inserted into the housing 10 through the stepped bores 18 before installation, the connection openings 48 of the connecting pieces 40 being oriented in the direction of the opening 16 of the housing 10. To achieve this the connecting pieces 40 are passed inside the housing 10 through the arcuate openings 29 of the retaining plate 20 with the grooves 56 engaging the guide elements 30 of the retaining plate 20, until the arcuate edge 34 of the respective guide element 30 engages in the groove section 56c of the connecting piece 40. The connecting pieces 40 can now no longer rotate within the stepped bores 18.

The stepped portions 50 of the connecting pieces 40 now extend through the respective stepped bores 18 of the housing 10.

Once the connecting pieces 40 have been inserted into the installation device 1 in the manner described above, the assembly plug 57 is placed on the connection openings 48 of the connecting pieces 40 and fixed by means of the screw 62 to the retaining plate 20.

The connecting pieces 40 are thereby prevented from sliding radially out of the housing 10. In addition, the connection openings 48 of the connecting pieces 40 are sealed by the above mentioned 0-rings in the grooves 60 of the projections 59 of the assembly plug 57. The pipe system can now be tested for liquid-tightness in a known way by pressurisation.

The retaining plate 20 does not itself need to be fixed directly to the housing 10. The inter-engagement of the individual components is sufficient to fix the components 10 concerned.

The installation device 1 is now inserted in the wall opening and the water supply and discharge pipes (not shown here) located in the building wall are each connected to a respective connecting piece 40 by means of the fixing hexagons 52. The housing 10 of the installation device 1 is fixed to the wall opening by known fixing means which are not described here.

The cylindrical peripheral wall 12 of the housing 10 has a relatively large axial extension, as can be seen in Figs. 1 and 3. The installation device 1 can therefore be used at different installation depths in the wall opening. When the installation device 1 has been fixed in the wall opening, the portion of the cylindrical peripheral wall 12 projecting from the wall can be simply 25 cut off, so that the resulting front edge of the housing 10 is flush with the masonry, the tiles on the wall or the like.

Prior to installation of the sanitary appliance, the screw 62 is released and the assembly plug 57 is removed from the connection openings 48 of the connecting pieces 40. The connecting pieces of the sanitary appliance having the connection openings are now inserted in the free connection openings 48 of the connecting pieces 40. Self-evidently, for this purpose the connecting pieces of the connection device must be complementary to the connection openings 48 of the connecting pieces 40 of the installation device 1.

Through the configuration of the arcuate edges 28 of the radially inwardly disposed sections 26 of the retaining plate 20 corresponding to the outer face of the connection device of the appliance, said edges 28 serve to guide the connection device of the combination fitting by abutting the outer cylindrical surface of the connection device.

The radially inwardly disposed sections 26 of the retaining plate 20 serve additionally as a part of a bayonet fastening. For this purpose the connection device of the appliance has a rotatable sleeve having ribs arranged at a corresponding axial distance from its connecting piece, which ribs extend so far in the circumferential direction of the sleeve and are so spaced apart that, upon insertion of the connection device in the housing 10, they can be passed between the sections 26. If, after insertion of the connecting pieces of the appliance into the connection openings 48 of the connecting pieces 40, the sleeve is rotated in the circumferential direction, the obliquely disposed sections 26 of the retaining plate 20 bear against the ribs of the connection device of the appliance, which is pulled towards the retaining plate 20.

If the connection device of an appliance to be installed does not have four connecting pieces 40 as assumed above, the installation device 1 can be suitably adapted to the connection device prior to its installation.

Unlike the bath fitting described above, a different basic type of appliance may have, for example, only one mixed water outlet. Accordingly, the related connection device has connections for a cold water supply, a hot water supply and a mixed water discharge.

Three connecting pieces 40 must therefore be present in the installation device 1 in order to connect the connecting pieces of the appliance to the water-carrying domestic pipes. In this case only three connecting pieces 40 are inserted into the housing 10, as described above, according to the positions of the connecting pieces of the appliance.

The further installation of the installation device 1 takes place as described above. The assembly plug 57 also fits into the connection openings 48 of the connecting pieces 40 if less than four connecting pieces 40 are inserted in the housing 10. A further embodiment of an installation device for sanitary appliances is described below with reference to Figs. 4 to 7. In this embodiment, components corresponding in function to those of the embodiment of Figs. 1 to 3 are denoted by the same reference signs increased by 100.

The housing 110 has on its outer cylindrical surface, between the stepped bores 118 in the peripheral wall 112, four radial fixing lugs 63 flush with the rear wall 114 of the housing 110. Passing through each of the radial fixing lugs 63 is a bore 64. Next to the fixing lugs 63, blind holes 65 are located in cylindrical thickened portions of the peripheral wall 112 of the housing 110, as can be seen in Fig. 5.

By means of the fixing lugs 63 and/or the blind holes 65 the housing 110 can be fixed in an opening in the masonry.

After manufacture of the housing 110 the stepped bores 118 are initially closed by a plate 66. The plate 66 is connected integrally to the internal cylindrical surface of the section of the stepped bore 118 having the smaller diameter. The connecting line 67 (Fig. 4) is formed thinner, so that a predetermined the break line 67 is present along the connecting line 67 of the plate 66 with the stepped bore 118. The plate 66 can therefore be broken out of the stepped bore 118 as required, if a connecting piece 140 is to be inserted through said stepped bore 118 into the housing 110.

Unlike the other connecting pieces 40 of Figs. 1 to 3, one of the connecting pieces 140 of Fig. 4, denoted by the reference sign 140a, has an opening 68 in its central portion 142. Various functional elements, such as upstream shut-off valves or sound dampers (not shown) may be integrated in the connecting piece 140a by means of the opening 68.

The essential difference of the installation device of Figs. 4 to 7 from the embodiment of Figs. 1 to 3 lies in the manner in which the connecting pieces 140 are fixed in the housing 110.

The retaining device is in the form of a retaining barrel 120. The latter has a circular base portion 121 and a cylindrical peripheral wall 124. The retaining barrel 120 is an injection moulding of plastics material or a metal extrusion.

The peripheral wall 124 of the retaining barrel 120 has four sections 69 of lesser wall thickness and four sections 70 of greater wall thickness alternating in the circumferential direction, such that the internal cylindrical surface of the peripheral wall 124 is alternately offset radially inwardly and outwardly, two sections having the same wall thickness being located opposite one another in each case. A peripheral groove 71 is located in the internal cylindrical surface of the peripheral wall 124 a short distance below the opening of the retaining barrel 120.

Because of the configuration described above, the peripheral wall 124 of the retaining barrel 120 has four radially inwardly projecting sections 126 which end with an arcuate edge 128. This results in a fixing and guide device 122 which, like the fixing and guide device 22 of Figs. 1 to 3, serves to fix and radially guide a connection device (not shown) of a sanitary combination fitting.

Starting from the base portion 121 of the retaining barrel 120, its peripheral wall 124 has four axial openings 129 which are arranged in the sections 69 of the peripheral wall 124 of lesser wall thickness. The openings 129, correspondingly to the openings 29 of the embodiment of Figs. 1 to 3, are at least sufficiently large for a part of the connecting piece 140 to be passed through them.

The base portion 121 of the retaining barrel 120 has four openings 132 which each lead radially inwards, starting from the openings 129 and ending with a semicircular edge 134.

The parallel and the semicircular edges 134 of the openings 132 together form guide elements 130 along which the connecting pieces 140 are slidable by means of their grooves 156.

An axial rib 72 is located on each of the inner part cylindrical faces of the four sections 70 of the retaining barrel 120 of greater wall thickness. The ribs 72 start at the base portion 121 of the retaining barrel 120 and end with an abutment face 73. When the connecting piece 140 has been inserted in the guide 15 element 130, the abutment face 73 is located somewhat below the edge of the angled portion 144 of the connecting piece 140 facing away from the base portion 121 of the retaining barrel 120, as can be seen in Fig. 7. The ribs 72 with the abutment faces 73 serve 20 as abutments for a fixing ring 86 to be explained later.

The base portion 121 of the retaining barrel 120 has two bores 74 located on a diagonal between two ribs 72. One of said bores 74 can be seen in Fig. 7. Also to be seen in that Figure is one of two offset portions 76 of the rear wall 114 of the housing 110. The internal wall 77 of the portion 76 offset axially into the housing 110 and parallel to the rear wall 114 of the housing 110 has in each case a bore 79. The offset portions 76 are so arranged in the rear wall 114 of the housing 110 that their bores 79 are each located coaxially to one of the bores 74 in the base portion 121 of the retaining barrel 120 when the latter has been inserted in the housing 110 and appropriately aligned.

As shown in Fig. 7, the retaining barrel 120 is fixed in the housing 110 by a fixing element 80 which will be explained in more detail below with reference to Fig. 4a.

The fixing element 80 is made of elastic material and includes a disc 81, two cylindrical sections 82 arranged coaxially on the opposed circular faces of the disc 81 and conical sections 83 coaxially adjoining said cylindrical sections 82 and ending in each case in a spherical element 85. The diameter of the cylindrical sections 82 is smaller than that of the disc 81. The conical sections 83 are each formed integrally with the cylindrical sections 82 via their end of larger diameter, the larger diameter of the conical sections 83 lying between the diameter of the disc 81 and the diameter of the cylindrical sections 82.

As can be seen in Fig. 7, the inner wall 77 of the offset portion 76 has on its side facing towards the opening 116 of the housing 112 a recess 78 coaxial to its bore 79.

Complementary to said recess 78, the base portion 121 of the retaining barrel 120 has on its outer face a recess 75 coaxial to its bore 74.

The diameters of the recesses 75 and 78 correspond to the diameter of the disc 81 of the fixing element 80. The diameters of the bores 74 in the base portion 121 of the retaining barrel 120 and the diameters of the bores 79 in the offset portions 76 correspond to the diameters of the cylindrical sections 82 of the fixing element 80. The diameter of the conical elements 85 of the fixing element 80 is somewhat smaller than the diameter of the bores 74 and 79.

Fig. 4 shows a fixing ring 86 cooperating with the retaining barrel 120. The fixing ring 86 comprises a ring element 87 having an external diameter which corresponds to the internal diameter of the retaining barrel 120 which is formed by its sections 70 of greater wall thickness. Four angled projections 88 are formed integrally with the ring element 87 on its radially outer side. The angled projections 88 are so configured as to form with their outermost edges 89 a clear diameter of the fixing ring 86 which corresponds to the internal diameter of the retaining barrel 120 formed by its sections 69 of lesser wall thickness. The angled projections 88 have an extension in the circumferential direction which is somewhat less than that of the sections 69 of lesser wall thickness of the retaining barrel 120. The angled projections 88 are offset to one another by 90° on the ring element 87 of the fixing ring 86.

The fixing ring 86 as a whole is so configured that it can be inserted into the retaining barrel 120, the angled 5 projections 88 being located in the sections 69 of lesser wall thickness of the retaining barrel 120, as can be seen in Figs. 5 and 6.

The ring element 87 of the fixing ring 86 has an inner edge 90 which has a configuration comprising alternating sections 91 having a small radius of curvature and sections 92 having a large radius of curvature. The radius of curvature of the sections 91 corresponds to the external radius of the angled portions 144 of the connecting pieces 140. The sections 91 of small radius of curvature of the inner edge 90 of the ring element 87 are offset by 90° and are so arranged that they lie opposite the angled projections 88. The inner edge 90 of the ring element 87 is so configured as a whole that, when the fixing ring 86 and the connecting pieces 140 have been inserted, its sections 91 are disposed along the external peripheral surface of the angled portions 144 of the connecting pieces 140 facing towards the inner wall of the retaining barrel 120. This can be seen clearly in Figs. 5 and 6.

Starting from the inner edge 90 of the ring element 87, the sections 92 having a large radius of curvature have at their centers a locking opening 93. Around the locking openings 93 the ring element 87 has depressions 94.

Installation of the installation device of Figs. 4 to 7 takes place as follows:

Plates 66 are first broken out of the stepped bores 118 of the housing 110 along the predetermined break lines 67 according to the required number and position of the connecting pieces 140. The fixing elements 80 are introduced through the opening 116 into the housing 110 and their spherical elements 85 are each passed through a respective bore 79 of an offset portion 76. This takes place initially without the application of major force until the edge 84 of the conical section 83 of the fixing element 80 bears against the side of the recess 78 of the inner wall 77 of the offset portion 76. The fixing element 80 is now pulled from the rear side 114 of the housing 110 through the bore 79. When tension is applied to the spherical section 83 of the fixing element 80 the fixing element 80 lengthens axially on account of its elasticity, whereby the diameter of the edge 84 of the conical section 83 is reduced and the latter can be pulled through the bore 79. The disc 81 of the fixing element 80 is then located in the recess 78 of the inner wall 77 of the offset portion 76. The conical section 83 of the fixing element 80, by contrast, bears against the side of the inner wall 77 of the offset portion 76 that faces towards the rear wall 114 of the housing 110. The fixing element 80 is thereby fixed.

The retaining barrel 120 is introduced into the housing 110 through the opening 116, the openings 129 in the peripheral wall 124 of the retaining barrel 120 being oriented in the direction of the stepped bores 118. The retaining barrel 120 is now inserted further into the housing, so that the bores 74 in its base portion 121 are guided over the spherical elements 85 of the fixing elements 80 located in the housing 110. As described above, a tension is exerted on the conical sections 83 of the fixing element 80 located in the housing 110, the diameters of the edges 84 of the conical sections 83 facing towards the opening 116 of the housing 110 now being reduced and passing through the bores 74 in the base portion 121 of the retaining barrel 120. The discs 81 of the fixing elements 80 are therefore now located in the recesses 75 of the base portion 121 of the retaining barrel 120. The retaining barrel 120 as a whole is now fixed axially and radially.

The fixing ring 86 is now introduced into the housing 110 and into the retaining barrel 120. As this happens the angled projections 88 are oriented in the direction away from the rear wall 114 of the housing 110. The fixing ring 86 is so inserted in the retaining barrel 120 that the angled projections 88 are aligned with the sections 69 of lesser wall thickness of the retaining barrel 120. The fixing ring 86 is moved into the retaining barrel 120 until it comes to rest against the abutment faces 73 of the ribs 72 of the retaining barrel 120.

To achieve this, the conical sections 83 of the fixing elements 80 must be bent somewhat inwards radially, so that they are located inside the fixing ring 86. The axial extension of the conical sections 83 is so selected that the spherical elements 85 now rest against the inner edge 90 of the fixing ring 86. If the conical sections 83 are now lengthened axially by a light tension, they can be inserted laterally from the inside into the locking openings 93 of the fixing ring 86. Upon relaxing of the tension the spherical elements 85 of the fixing ring 86 come to rest in the depressions 94 of the fixing ring 86.

The fixing ring 86 is thereby fixed axially, as can be seen in Fig. 7.

Finally, the required connecting pieces 140 are introduced into the housing 110 through the stepped bores 118 until the stepped portions 150 of the connecting pieces 140 extend through the corresponding stepped bores 118. Radial sealing is again effected by 0-rings (not shown) located in the stepped bores 118.

As the connecting pieces 140 are introduced into the housing 110, their angled portions 144 pass through the openings 129 in the peripheral wall 124 of the retaining barrel 120. As this happens, the edge of the angled portion 144 of the connecting pieces 140 located radially inwardly and facing towards the opening 116 of the housing 110 abuts a respective angled projection 88 of the fixing ring 86 and exerts thereon a force in the direction of the opening 116 of the housing 110.

Because of the fixing elements 80 which retain the fixing ring 86 axially are elastically deformable, the fixing ring 86 as a whole is fixed in a tiltable manner. It can therefore yield to the force exerted on it in the direction of the opening 116 of the housing 110. Once the connecting pieces 140 have been completely inserted into the housing 110, the fixing ring 86 springs back when the angled portions 144 of the connecting pieces 140 pass behind the inner edge 90 of the fixing ring 86. The sections 91 of the ring element 87 then bear against the outer surface of the angled portions 144 of the connecting pieces 140 facing towards the inner surface of the peripheral wall 112 of the housing 110, and the connecting pieces 140 are fixed radially against being pulled out.

As in the case of the installation device 1 of Figs. 1 to 3, the connecting pieces 140 are guided through the opening 129 of the peripheral wall 124 of the retaining barrel 120 in such a way that they slide via their groove 156 over the respective guide element 130, whereby they are fixed axially and transversely.

All further assembly steps not described in detail here correspond to the procedure as described with reference to the installation device of Figs. 1 to 3.

Claims

Built-in device for sanitary fittings

A sanitary fixture (1) recessing device, in particular flat-mounted mixing fittings, with one housing (10; 110) disposable in an aperture of a building wall, in which one sanitary fixture connection device may be provided with at least two connection openings, the recessing device (1) comprises connecting means (40; 140) by means of which the connection openings in the connecting device of the plumbing fixture can be connected to water conducting pipes in the building wall, wherein at least one of the connecting means (40; 140) is an independent part and can be inserted independently of the housing (10; 110). in the housing (10; 110), where the connecting means (40; 140) is a connecting plug (40; 140) having a connecting opening (48; 148) at one end and a fastening means (52; 152) at the other end through which the connector (40; 140) can be connected to a water-carrying tube in the building wall, and where the connector (40; 140) can be inserted so far into the house openings (18; 118) in the outer wall (12; 112) of the housing (10; 110), that the connection opening (48; 148) in the connector (40; 140) lies in the interior of the housing (10; 110) and the fastening means (52) of the connector (40; 140) ; 152) is located outside the housing (10; 110), characterized in that the connection opening (48; 148) in the connection socket (40; 140) is complementary to the one connection opening in the sanitary fitting connection and is angled 90 ° with respect to the opening of the connection plug ( 40; 140) fastener (52; 152).

Installation device according to claim 1, characterized in that two, three or four connecting means (40; 140) are provided which can be optionally inserted into the housing (10; 110).

Installation device according to one of the preceding claims, characterized in that the connector (140a) has an opening (210) in which a functional element can be received.

Installation device according to one of the preceding claims, characterized in that the connection plug (40; 140) consists of plastic material.

Installation device according to one of the preceding claims, characterized in that the connecting plug (40; 140) can be secured within the housing (10; 110) by means of a control element (30; 130).

Installation device according to claim 5, characterized in that the control element (30; 130) is part of a holding device (20; 120) which can be arranged in the housing (10; 110).

Installation device according to claim 6, characterized in that the control element (30; 130) is formed by the edge of a cut-out (32; 132) in the holding device (20; 120), which the connecting plug (40; 140) can be pushed into by means of a groove (56; 156).

Installation device according to one of claims 1 to 7, characterized in that at least one fastening and control device (22; 122) is provided with which the connecting device of the sanitary fixture insertable in the installation device (1; 101) is radially guided.

Installation device according to claim 8, characterized in that the fastening and control device (22; 122) is arranged on the holding device (20; 120).

Installation device according to one of claims 6, 7 or 9, characterized in that the holding device (20) is formed as a holding plate (20).

Installation device according to claim 10, characterized in that the holding plate (20) consists of a thin piece of tin.

Installation device according to one of Claims 6, 7 or 9, characterized in that the holding device (120) is designed as a holding knob (120).

Built-in device according to claim 12, characterized in that the holding knob (120) is formed as an injection molded blank of plastic material.

Mounting device according to one of the preceding claims, characterized in that a fastening device (86) is provided which holds the connecting pins (40; 140) radially against extension.

Installation device according to claim 6, characterized in that the holding device (20; 120) is releasably secured by at least one fastening element (80).

Installation device according to claims 14 and 15, characterized in that the fastening device (86) is removably fastened in the housing (10; 110) by means of at least one fastening element (80) which also holds the retaining device (120).

Installation device according to claim 16, characterized in that the fastening element (80) is of elastic material.

Installation device according to one of the preceding claims, characterized in that a bayonet fitting is provided which holds the connecting device for the sanitary fitting axially in the housing (10; 110).

Built-in device according to claim 18 with respect to one of claims 8 to 17, characterized in that the fastening and guide element (22; 122) forms part of the bayonet socket.

Installation device according to one of the preceding claims, characterized in that a mounting plug (57; 157) is provided which can be detachably inserted into the connection openings (48; 148) in the connection plugs (40; 140) inserted into the installation device ( 1; 101) housing (10; 110).

Installation device according to claim 20, characterized in that the mounting plug (57; 157) can be releasably fastened to the holding device (20; 120).

Installation device according to claim 20 or 21, characterized in that the mounting plug (57; 157) is made of plastic material.

Installation device according to one of the preceding claims, characterized in that the housing (10; 110) has at least one axial extension so that it protrudes from the opening in the building wall at all common depths and that it extends out of the opening in the building wall. the building wall projecting part of the housing (10; 110) can be separated from this.

Installation device according to claim 22, characterized in that the housing (10; 110) of the installation device (1; 101) has an axial extension of at least 10 cm.

Installation device according to one of the preceding claims, characterized in that the housing (10; 110) is of plastic material.

Installation device according to one of the preceding claims, characterized in that the housing (10; 110) has rupture sites which are closed with plates (66) which can be removed along a predetermined rupture site (67).