DE102021105208A1 - Disc assembly, plumbing fixture, retrofit kit for a plumbing fixture, and method of operating a plumbing fixture - Google Patents

Abstract

Pane arrangement (1), comprising at least a first pane (2) and a second pane (3), which abut each other with an inner side (18, 19) and at least one of the panes (2, 3) opposite the other of an open - position can be displaced into a closed position, one of the disks (2, 3) also having a plurality of fluid openings (4, 5, 6, 7) and the other disk (3, 2) having at least one connecting opening (8), wherein the at least one connection opening (8) forms a passage (9) for at least two fluid openings (4, 5, 6, 7) in the closed position. Furthermore, a sanitary fitting (11), a retrofit kit (28) for a sanitary fitting (11) and a method for operating a sanitary fitting (11) are specified.

Description

The present invention relates to a disc arrangement, in particular a (ceramic) disc arrangement for a mixer cartridge of a sanitary fitting, a sanitary fitting with a corresponding disc arrangement, a retrofit kit for a sanitary fitting and a method for operating a sanitary fitting.

It is known, in the case of a sanitary fitting which is particularly suitable for realizing water with different water temperatures and/or different water flow rates, to provide a mixer cartridge which, by means of an adjusting element, in particular a lever, can adjust an integrated ceramic disk arrangement in such a way that a desired water delivery is set becomes. This sanitary fitting can therefore essentially only be actuated mechanically, ie by adjusting the lever.

Sanitary fittings are also known that include sensors for non-contact operation. Infrared sensors, radar sensors or the like are used here, with the water temperature and/or the flow rate of the water being dispensed also being able to be changed by a specific movement sequence and/or movement by the operator.

With a view to economical and/or convenient operation of a sanitary fitting, it can be useful to provide combined systems that include, in particular, a mechanical adjustment element and a sensory, non-contact adjustment element. It is particularly desirable to design a sanitary fitting that has hitherto only been mechanically operable with an additional function that is detected by sensors. It can thus be achieved, for example, that the sanitary fitting can be operated quickly and particularly hygienically via the sensory adjustment element for brief operation, while other, possibly longer-lasting water discharges can be realized via the mechanical adjustment element. If necessary, it should also be made possible for the water delivery to be started with, for example, the sensory adjustment element and then to be adjusted by means of the mechanical adjustment element.

In particular, it is desirable to provide a retrofit kit, comprising a sensory actuating element, for an already existing, exclusively mechanically adjustable sanitary fitting.

The object of the present invention is to specify a solution that is improved compared to a sanitary fitting known from the prior art, in particular with regard to handling and/or flexibility. In particular, the functionality for purely mechanically operated sanitary fittings should be improved.

These objects are achieved with a disk arrangement, a sanitary fitting, a retrofit kit for a sanitary fitting and a method for operating a sanitary fitting according to the independent patent claims. The dependent patent claims specify further advantageous refinements of the invention. The features listed individually in the patent claims can be combined with one another in any technologically meaningful way and can also be combined with features of the description. The description, in particular also in connection with the figures, specifies further exemplary embodiments.

Contributing to this is a pane arrangement which comprises at least a first pane and a second pane, each of which rests against one another with an inner side and at least one of the panes can be displaced relative to the other from an open position to a closed position. A plurality of fluid openings are provided in one of the two disks. The other disk has at least one connection opening. The disks are arranged relative to one another in the closed position in such a way that the at least one connection opening forms a passage for at least two fluid openings.

The first pane and/or the second pane is preferably made of ceramic. It is possible for each disc to be made entirely and in one piece with ceramic material. The first pane and/or the second pane can each be provided with at least one stop element, preferably with several stop elements, which limit the displaceability of the two panes on one another via the respective inner side. In particular, it can be provided that one of the disks has stop elements such that it at least partially accommodates the other disk. The stop elements can be positioned radially on the outside in the region of the outer circumference of the disk(s). It is possible for the stop elements of one disk to extend over longer sections of the circumference than the stop elements of the other disks and in this respect serve as guide elements. During operation or in the mixer cartridge, the discs are in contact with one another, in particular directly via their respective inner sides facing one another.

The fluid openings are, in particular, material openings arranged on the inside and at a distance from the circumference of the disk. The fluid openings are set up to realize a water flow through them from a rear front surface to the inside and/or from the inside to the front side.

The other pane has at least one, preferably (only) a single connection opening. Such a connection opening is usually also designed in the manner of a material opening on the inside. It can be provided that the connection opening is closed on the front side opposite the inside. This can be done with a separate component and/or with the disc itself (which would then be a relatively thick component). The connection opening is designed in particular in such a way that it can receive a water flow from one fluid opening, redirect it and return it to another fluid opening. The connection opening essentially also extends over a central area of the pane arrangement, in particular over a central axis.

The two disks are brought into contact with one another in such a way that they can be displaced relative to one another via their inner sides. Displaceable in this context can include a transverse movement and/or a rotational movement. The disk arrangement is preferably designed such that a first disk, which has the plurality of fluid openings, can be fixed in place (in a mixer cartridge), while the second disk can be moved relative to the inner surface and on the inner surface.

With such a pane arrangement, it is easy to recognize the position in which the panes are positioned relative to one another in order to realize a closed position. In such a closed position, the connection opening is usually covered by a maximum of one single fluid opening in known systems. Deviating from this, it is proposed here that the disc arrangement or the arrangement and/or shape of the fluid openings/connecting openings is selected such that a passage for at least two fluid openings is/is formed with the at least one connecting opening in the closed position. This means that the connection opening allows water to flow from one fluid opening to the other fluid opening by means of the passage formed in this way. This passage makes it possible for a water flow to be started even when the sanitary fitting is mechanically in the closed position, for example if this is done via a sensory adjustment element. This is explained in more detail below.

The disc arrangement can be designed in such a way that the at least one connection opening forms a passage for at least two fluid openings in any position deviating from the closed position, the passage in the closed position only having a first fluid opening and not having this in any further position first fluid opening is formed. In other words, this means in particular that a type of bypass passage is formed in the closed position, which is only open in the closed position. In this way it can be achieved, for example, that the functionality or functioning of the sanitary fitting expected by the user of the sanitary fitting remains essentially unchanged via a mechanical adjustment element, even if such a disc arrangement is integrated into an existing sanitary fitting as part of a retrofit.

A passage is formed in particular by a type of gap in the area of the inner sides of the panes that abut one another, which is present between a connection opening and a fluid opening.

It is particularly preferred that four fluid openings are provided in one disk and two fluid openings thereof are connected to one (or the same) fluid channel. Mixer cartridges of sanitary fittings usually have two inlets, namely one for hot water and one for cold water, and one outlet, namely for the mixture of cold water and hot water set in the disk arrangement. Therefore, it is common for one disk to have three fluid ports. Here a fourth fluid opening is now provided in the disk, via which water can be supplied to another section of the inside of the disk, namely for the so-called bypass passage. For this purpose, the water present at a fluid opening can be guided away from the fluid opening via a fluid channel along the front side or on the surface facing away from the inside to another fluid opening. This fluid channel can be designed in the manner of a groove on the surface of the front side of the disk. This allows the inflowing water, instead of the regular entry via the fluid opening opposite the fluid line, to be guided away laterally and to another section of the disk arrangement where the fluid opening of the other disk is located above it in the closed position.

According to a further aspect of the invention, a sanitary fitting is proposed which has at least one base body, an outlet, a first control element which can be moved from an open position to a closed position and at least includes three fluid lines. A disk arrangement is provided in the flow path of the three fluid lines, which disk arrangement spans the at least three fluid lines and which can be adjusted by the first operating element. The disc assembly is configured such that in the closed position a passage for fluid is formed therethrough.

A disk arrangement such as that also proposed here is particularly suitable for this purpose.

In other words, this means in particular that the disk arrangement does not completely close the fluid lines even when the (mechanical) first operating element is in the closed position. Nevertheless, it is ensured in this situation that no undesired escape of water occurs via the outlet of the sanitary fitting, for example because fluid line blocking elements that can be opened and/or closed as required are provided elsewhere.

The movable first control element is preferably a so-called single-lever adjuster, which can be spatially moved (pivoted) to a limited extent. The disk arrangement is adjusted in particular in such a way that the spatial movement of the operating element causes the disks to be displaced and/or rotated relative to one another, with these movements preferably taking place in one plane. This movable first control element can be formed on the side of the base body of the sanitary fitting. It is possible that the sanitary fitting has only a single movable first operating element.

The at least three fluid lines can be a cold water inlet line, a hot water inlet line and a mixed water outlet line. These can each rest on a first front side of the pane arrangement. In this case, in the closed position, the flow for fluid or water is formed from the cold water inlet line to the mixed water outlet line.

A heating element can be assigned to the hot water supply line, which sets a definable water temperature of the hot water provided in the hot water supply line. It is possible that the cold water supply line does not have a heater. It is also possible for the pane arrangement to interact with the first operating element from the second front side, which is opposite the first front side. In this respect, a deflection of water, which enters via the first front side and optionally exits again on the same first front side, is set in the pane arrangement in particular. In particular, it is therefore proposed here that the bypass passage is connected to the cold water supply line. This can mean that in the closed position (of the first control element) only cold water (possibly motivated by sensors) can be dispensed.

In addition, it is proposed that a valve is provided in the cold water supply line, which can be adjusted by means of a second control element that can be activated without contact. The valve can be designed as an electrically operated solenoid valve. The second control element that can be activated in a contactless manner can include an environment sensor that is set up to detect a movement in the area or near field of the second control element. This can include an optical sensor, an infrared sensor, a radar sensor or the like. In particular, the second operating element is set up to detect a movement or a gesture by a user in its environment or near field and then to forward a signal or command to the controller of the valve, with which the valve is opened and/or closed. It is possible that the basic setting of the valve closes the cold water supply line, meaning that a specific movement or activation via the second operating element is required for it to open.

A flow meter is particularly preferably provided in the hot water supply line. The flow meter in the hot water supply line can be set up in particular to detect a flow in the hot water supply line and in this case to send a signal or command to the valve, after which this opens or keeps the cold water supply line open. The flow meter can be set up to transmit different signals or commands to the valve depending on the quantity of the measured flow.

In particular, the disc arrangement is designed such that as soon as it is adjusted using the first control element, it realizes a flow starting from the hot water supply line to the mixed water discharge line, even if only cold water is to be dispensed using the first control element. The passage of hot water is then limited to very small amounts, in particular to such amounts that can be clearly identified by means of the flow meter, so that this gives the (usually closed) valve the signal or the command to now release the hot water supply line. In other words, based on an always present, forced hot water flow at each open position, which with the first operator element is set, the desire to dispense water is detected and the valve is activated.

It is particularly preferred that the valve and the flow meter are arranged in a common housing. A particularly space-saving arrangement of the valve and flow meter in the cold water supply lines and hot water supply lines, which mostly run adjacently, is thus possible. This housing can be integrated into the fluid lines at a distance from the base body of the sanitary fitting, for example underneath a table, a plate, etc. This also simplifies the provision of a retrofit kit for previously purely mechanically operated sanitary fittings. It is also possible in this way that a control unit for the flow meter and valve components can be integrated in a protected manner in a housing. On the one hand, this control unit can process data determined by means of the flow meter and, if necessary, directly provide control or regulating commands for the electrically actuatable valve. A receiving unit for signals from the second operating element can optionally also be integrated in the housing, and this can be suitable for receiving data by radio and/or cable.

It is also preferred that the second operating element is arranged in a separate collar element, which can be arranged around the base body, around the outlet or around at least one fluid line of the sanitary fitting. The collar element can have a circumferential collar with a central collar opening, into which the base body and/or the outlet and/or at least one or all of the fluid lines are guided. This collar opening can also be non-rotatably connected to the components of the sanitary fitting discussed here (positive fit). The collar element can be attached to the sanitary fitting in the manner of a clip and/or clamped to the base body on a furniture component, a panel, etc. A sensor and/or a radio unit or electronic connections for data transmission can be provided in the collar element.

According to a further aspect of the invention, a retrofit kit for a sanitary fitting is proposed, comprising at least one disc arrangement of the type disclosed here, an operating element that can be activated without contact, a flow meter and a valve that can be adjusted by means of the operating element that can be activated without contact.

The disc arrangement can be part of a mixer cartridge with a pivoting lever, which replaces the mixer cartridge already present in the purely mechanical sanitary fitting. The operating element that can be activated without contact can be provided with a separate collar element that can be fixed between the base body of the sanitary fitting and a plate. The flow meter and the valve can be provided in a common housing which can be integrated into the two fluid lines. In this way, an existing sanitary fitting can easily be retrofitted with a sensory operation that can be activated without contact.

The explanations for the pane arrangement, the sanitary fitting and/or the retrofit kit can each be used in full for a more detailed characterization.

According to a further aspect of the invention, a method for operating a sanitary fitting is proposed. The sanitary fitting has at least one first control element that can be moved from an open position to a closed position, a second control element that can be activated without contact and a disc arrangement having at least two discs, as well as a valve and a flow meter. The above explanation can be used in full for the design of these components of the sanitary fitting.

1. a) Bereitstellen eines Durchlasses für Fluid von der Kaltwasserzulaufleitung hin zur Mischwasserablaufleitung mit der Scheibenanordnung in der Geschlossen-Stellung wobei das Ventil die Kaltwasserzulaufleitung geschlossen hält,
2. b) Verschieben der Scheiben relativ zueinander in eine von der Geschlossen-Stellung abweichende Stellung, wobei ein Durchlass für Fluid von der Warmwasserzulaufleitung hin zur Mischwasserablaufleitung mit der Scheibenanordnung bereitgestellt wird,
3. c) Öffnen des Ventils, wenn dies vom berührungslos aktivierbaren zweiten Bedienelement vorgegeben wird oder wenn mittels des Strömungsmessers in der Warmwasserzulaufleitung ein Fluidfluss erfasst wird.

The procedure comprises at least the following steps:

1. a) providing a passage for fluid from the cold water supply line to the mixed water discharge line with the disc assembly in the closed position with the valve holding the cold water supply line closed,
2. b) shifting the discs relative to one another into a position deviating from the closed position, a passage for fluid from the hot water supply line to the mixed water discharge line being provided with the disc arrangement,
3. c) Opening the valve when this is specified by the contactless activatable second control element or when a fluid flow is detected by means of the flow meter in the hot water supply line.

Step a) relates in particular to the operating situation of the sanitary fitting when it is in the fully closed position.

Step b) relates in particular to the operating situation in which the pane arrangement is moved by the first control element to a position other than the closed position.

Step c) indicates under which conditions a water flow is started when this is done in the situation according to step a) or according to step b) is desired. In this respect, step c) characterizes a property, step c) resulting in the opening of the valve and thus the release of water, depending on steps a) and b). It is possible for the valve to open in the situation according to step b) if this is specified both by the second control element and a fluid flow is detected by means of a flow meter in the hot water supply line.

With regard to further details on the method of operating or setting passages and flows of the fluids or water in the sanitary fitting, the features and functions disclosed here can be fully used, which were specified in connection with the sanitary fitting and/or the disk arrangement.

The sanitary fitting disclosed here can very particularly preferably (automatically) implement the method specified here, but it is also possible for a sanitary fitting disclosed here to be used to carry out the method mentioned.

• 1: eine Scheibenanordnung in der Geschlossen-Stellung (links Draufsicht erste Fronseite, rechts Draufsicht zweite Frontfläche, rechts Draufsicht erste Frontfläche),
• 2: die Scheibenanordnung aus 1 in einer ersten Offen-Stellung, wieder in Draufsicht von beiden Frontseiten,
• 3: die Sanitärarmatur aus 1 in einer zweiten Offen-Stellung (wieder als Draufsicht von beiden Frontseiten),
• 4: eine Mischerkartusche mit einer Scheibenanordnung, und
• 5: eine Sanitärarmatur.

The invention and the technical environment are explained in more detail below with reference to figures. It should be noted that the figures are schematic in nature and are not intended to limit the subject matter of the invention. The technical features illustrated individually in the figures can be combined with technical features of other figures and/or the description, unless this is explicitly excluded here. Show it:

• 1 : a pane arrangement in the closed position (top view of the first front face on the left, top view of the second front face on the right, top view of the first front face on the right),
• 2 : the disk assembly off 1 in a first open position, again in plan view from both front sides,
• 3 : the plumbing fixture off 1 in a second open position (again as a plan view from both front sides),
• 4 : a mixer cartridge with a disc assembly, and
• 5 : a plumbing fixture.

the 1 until 3 12 show essentially the same pane arrangement 1, with different positions or settings being shown. 1 shows the closed position G.; 2 shows a first open position O after a mere displacement of the disks relative to one another; and 3 shows a second open position O after an additional rotation of the disks relative to one another. In order to illustrate the respective positions or positions of the components and openings in relation to one another, each of the figures includes 1 until 3 on the left a top view of a second front side 17 of the pane arrangement 1 (via which the movable first operating element can act), and on the right a top view of a first front side 16 (pointing towards the fluid lines).

Starting on the left 1 a plan view of the pane assembly 1 from the second front side 17 is illustrated. The disk arrangement 1 has a first disk 2 and a second disk 3 . Each of the panes 2, 3 has an inner side, namely an associated first inner side 18 and a second inner side 19. (Right in 1 recognizable through the fluid opening 5).

The left in 1 The second pane 3 shown above has a single, central connection opening 8 covering an axis 29 . Otherwise, the second pane 3 is essentially round and has a large number of stop elements 31 in the area of the outer circumference 30 , which extend over the second inner side 19 towards the first pane 2 . The second pane 3 rests against the first pane 2, in particular via the stop elements 31, which are flat on the first inner side 18 of the first pane 2, namely on the inside with respect to the stop elements 31 provided on the circumference of the first pane 2. The stop elements 31 of the second Disc 3 can limit the movement of the second disc 3, or lead.

The first disk 2 shown in the right picture of 1 is clearly visible, has four fluid openings, namely a first fluid opening 4, a second fluid opening 5, a third fluid opening 6 and a fourth fluid opening 7. Here, in particular, a central fourth fluid opening 7 also extends over an axis 29 of the disc assembly 1 further fluid openings can be spaced apart from the fourth fluid opening 7 and spaced apart from one another in the circumferential direction or along the circumference 30 . In the example shown here, a fluid channel 10 is formed between the first fluid opening 4 and the second fluid opening 5, which creates a fluidic connection between the second fluid opening 5 and the first fluid opening 4, specifically on the first front side 16 of the pane assembly 1.

In the case of a closed position G shown here, it can be seen that the connection opening 8 of the second disk 3 is above the first fluid opening 4 and the fourth fluid Opening 7 is positioned such that a passage 9 for water is formed there. In particular, it is possible that cold water, for example, which is routed to the second fluid opening 5, does not pass through there, but is instead diverted via the fluid channel 10 to the first fluid opening 4 and then via the passage 9 or the connection opening 8 into the fourth fluid opening 7 , which is connected to a mixed water drain, for example, can overflow. It is thus realized that the connection opening 8 forms a passage 9 for two fluid openings 4.7 in the closed position. With such a disk arrangement 1 it can also be realized that a passage 9 for fluid is formed through the disk arrangement 1 with a sanitary fitting in the closed position.

2 now illustrates a first open position O, for example when maximum flow is to be achieved with mixed water. For this purpose, a first operating element is moved in a direction that leads to a displacement of the second pane 3 relative to the first pane 2 (indicated here by an arrow pointing upwards). The (transversal) displacement of the second pane 3 closes the passage 9 from the closed position and a further or different passage 9 is set. In this case it is the case that by moving the second disc 3 upwards a flow is realized both from the second fluid opening 5 and from the third fluid opening 6 into the fourth fluid opening 7 via the single connection opening 8 . This first open position can be characterized, for example, by a blockage/end position or a stop situation of the stop elements 31 of the first pane 2 with those of the second pane 3.

3 shows a further open position O, in which case a maximum flow of cold water is now desired by the user or set via the first operating element 14 . This is set via the first operating element 14 in such a way that the second pane 3 is now additionally or subsequently rotated in the first pane 1 (see arrow indicated on the left in 3 ). Here, too, an end position can be present, with other stops or defined stops being present at another point by means of the stop elements 31 of the first pane 2 and the second pane 3 .

In this situation, too, it is ensured that two passages 9 are realized, ie the second disk 3 does not completely close the third fluid opening 6 . Maintaining a passage 9 via the third fluid opening 6, which is connected in particular to a hot water supply line 22, enables a water delivery request to be detected in any open position of the sanitary fitting 11, for example via a sensor element in the hot water supply line 22.

It is noted that in the 1 until 3 the same elements have always been provided with the same reference numbers, so that the explanations 1 especially for the closer characterization of the 2 and 3 can be used and vice versa.

4 shows a partial perspective of essential components of a mixer cartridge 32 with such a disk arrangement 1. The mixer cartridge 32 has a pivoting lever 33 on the right, which the operator can (indirectly) move in space. This movement of the pivoting lever 33 can be converted into a movement of the second pane 3 of the pane arrangement 1 via movement kinematics, which is guided in the first pane 2, for example. This adjustment mechanism of the second pane 3 is positioned on the second front side 17 of the pane arrangement 1 . Opposite, ie on the first front side 16, the first pane 2 forms the end of the pane arrangement 1, which is again designed with the fluid openings 4,5,6,7. Provision is made here for the second fluid opening 5 to be connectable or connected to a fluid line 15 , namely a cold water supply line 21 . It is further provided that the third fluid opening 6 can be or is connected to a fluid line 5 , namely the hot water supply line 22 . In addition, it is provided that the third fluid opening 7 can be or is connected to a fluid line 15 , namely the mixed water discharge line 23 . The first fluid opening 4 is not directly connected to a fluid line 15 but has a fluid channel 10 leading to the second fluid opening 5 .

5 now also illustrates a retrofit kit 28 for a sanitary fitting 11, the components of the retrofit kit 28 already being shown integrated in the sanitary fitting 11 here. The retrofit kit 28 includes a disk arrangement 1, as explained here, for example integrated in a mixer cartridge 32, as in 4 shown, an operating element 24 that can be activated without contact, a flow meter 25 and a valve 20 that can be adjusted by means of the operating element 24 that can be activated without contact. The flow meter 25 and the valve 20 are housed in a common housing 26 . The components and their functions or arrangement on the sanitary fitting 11 will now be explained in the assembled state.

The sanitary fitting 11 comprises a base body 12, which can be mounted, for example, on a plate 34, in particular of a washbasin or the like. An outlet 13 is formed on the base body 12, on which a fluid line 15, namely a mixed water discharge line 23, can be fed. A movable first control element 14 is also provided on the base body 12 . A user can use this first operating element 14 to set the water temperature and the amount of water delivered at the same time, for example. This can be adjusted (mechanically) via a separate or simultaneous rotation and/or pivoting of the first operating element 14 .

While one fluid line 15, namely the mixed water discharge line 23, runs from the first control element 14 to the outlet 13, two other fluid lines 15, namely a cold water supply line 21 and a hot water supply line 22, run to the first control element 14 or the mixer cartridge 32 with the first control element 14 and the Disc assembly 1. Here is disc assembly 1, see also 4 , integrated in such a way that it spans the three fluid lines and can also adjust the flow through them based on the movement or position of the first operating element 14 .

The sanitary fitting 11 also has a single operating element 24 that can be activated without contact. This is implemented here with a separate collar element 27 which is mounted below the base body 12 and above the plate 34 . The control element 24, which can be activated without contact, is set up to monitor a close-up area below the outlet 13 or in front of the base body 12 and, if movement or a person is detected in this area, to emit a signal to actuate the valve 20 in the cold water supply line 21. The valve 20 thus opens (regardless of the current position of the first control element 14, possibly also in the closed position) and immediately releases water via the outlet 13.

If the sanitary fitting 11 is actuated without the second control element 24, which can be activated without contact, and instead (only) the (mechanical) first control element 14 is actuated, a flow via the hot water supply line 22 is set in any case (even in the completely cold open position). , which leads to a flow in the hot water supply line 22 (even if this is minimal), so that the flow meter 25 arranged there detects this and then the (previously closed) valve 20 opens.

With the sanitary fitting 11 illustrated here or the integration of the retrofit kit 28, a passage 9 for water from the cold water inlet line 21 to the mixed water outlet line 23 can also be provided with the disc position in the closed position, with the valve 20 closing the cold water inlet line 21 in this case keeps closed.

It is also possible for the panes to be moved relative to one another into a position other than the closed position by means of the first operating element 14 , a passage 9 for fluid being provided from the hot water inlet line 22 to the mixed water outlet line 23 of the pane arrangement 1 .

The opening of the valve can be initiated (automatically) when this is specified by the contactlessly activatable second control element 24 and/or when a fluid flow is detected by means of the flow meter 25 in the hot water supply line 22 .

In this way, economical and/or convenient operation of a sanitary fitting is made possible. In particular, it is made possible for a sanitary fitting that can only be operated mechanically to be equipped with an additional function that is detected by sensors.

Reference List

1

disk arrangement

2

first slice

3

second disc

4

first fluid port

5

second fluid port

6

third fluid port

7

fourth fluid port

8th

connection opening

9

passage

10

fluid channel

11

sanitary fitting

12

body

13

outlet

14

first control

15

fluid line

16

first front

17

second front

18

first inside

19

second inside

20

Valve

21

cold water inlet pipe

22

hot water inlet pipe

23

mixed water drain line

24

non-contact activatable / second control element

25

flow meter

26

Housing

27

collar element

28

retrofit kit

29

axis

30

Scope

31

stop element

32

mixer cartridge

33

swing lever

34

plate

O

open position

G

closed position

Claims (11)

Pane arrangement (1), comprising at least a first pane (2) and a second pane (3), which abut each other with an inner side (18, 19) and at least one of the panes (2, 3) opposite the other of an open - position can be displaced into a closed position, one of the disks (2, 3) also having a plurality of fluid openings (4, 5, 6, 7) and the other disk (3, 2) having at least one connecting opening (8), wherein the at least one connection opening (8) forms a passage (9) for at least two fluid openings (4, 5, 6, 7) in the closed position. Disk arrangement (1) according to claim 1 which is designed in such a way that the at least one connection opening (8) forms a passage (9) for at least two fluid openings (4, 5, 6, 7) in any position deviating from the closed position, the passage (9) in the closed position is formed only with a first fluid opening (4) and in any other position is not formed with this first fluid opening (4). Disk arrangement (1) according to claim 1 or 2 wherein in one disc (2, 3) four fluid openings (4, 5, 6, 7) are provided and two fluid openings (4, 5) thereof are connected to a fluid channel (10). Sanitary fitting (11), having at least one base body (12), an outlet (13), a first operating element (14) that can be moved from an open position to a closed position, at least three fluid lines (15) in which a disc arrangement (1st ) is provided, which spans the at least three fluid lines (15) and can be adjusted by the first operating element (14), the window arrangement (1) forming a passage (9) for fluid through it in the closed position. Sanitary fitting (11) according to claim 4 , Wherein the at least three fluid lines (15) are a cold water inlet line (21), a hot water inlet line (22) and a mixed water outlet line (23), each of which rests on a first front side (16) of the pane arrangement (1), and where in the closed Position of the passage (9) for fluid from the cold water supply line (21) towards the mixed water discharge line (23) is formed. Sanitary fitting (11) according to one of Claims 4 or 5 , A valve (20) being provided in the cold water supply line (21) which can be adjusted by means of a second control element (24) which can be activated without contact. Sanitary fitting (11) according to claim 6 wherein a flow meter (25) is provided in the hot water supply pipe (22). Sanitary fitting (11) according to claim 7 , wherein the valve (20) and the flow meter (25) are arranged in a common housing (26). Sanitary fitting (11) according to one of Claims 6 until 8th , wherein the second operating element (24) is arranged in a separate collar element (27) which can be arranged around the base body (12), around the outlet (13) or around at least one fluid line (15). Retrofit kit (28) for a sanitary fitting (11), comprising at least one disc arrangement (1) according to one of Claims 1 until 3 , an operating element (24) which can be activated without contact, a flow meter (25) and a valve (20) which can be adjusted by means of the operating element (24) which can be activated without contact. Method for operating a sanitary fitting (11), featuring at least one first control element (14) that can be moved from an open position to a closed position, a second control element (24) that can be activated without contact, a disc arrangement having at least two discs (2, 3) ( 1), a valve (20) and a flow meter (25), wherein the method at least comprises the following steps: a) providing a passage (9) for fluid from the cold water supply line (21) to the mixed water discharge line (23) with the disk assembly (1) in the closed position, the valve (20) closing the cold water supply line (22) keeps closed, b) moving the discs (2, 3) relative to one another into a position that deviates from the closed position, with a passage (9) for fluid from the hot water inlet pipe (22) to the mixed water outlet pipe (23) with the disc arrangement (1 ) is provided, c) opening the valve (20) when this is specified by the second control element (24) which can be activated without contact or when a fluid flow is detected in the hot water supply line (22) by means of the flow meter (25).

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