EP0386426B1 - Bathtub with sanitary fixtures - Google Patents

Bathtub with sanitary fixtures Download PDF

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Publication number
EP0386426B1
EP0386426B1 EP90101365A EP90101365A EP0386426B1 EP 0386426 B1 EP0386426 B1 EP 0386426B1 EP 90101365 A EP90101365 A EP 90101365A EP 90101365 A EP90101365 A EP 90101365A EP 0386426 B1 EP0386426 B1 EP 0386426B1
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EP
European Patent Office
Prior art keywords
water
tub
valve
water level
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90101365A
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German (de)
French (fr)
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EP0386426A2 (en
EP0386426A3 (en
Inventor
Wolfgang Dr. Dipl.-Phys. Herchenbach
Walter Dipl.-Ing. Kremer
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Schock and Co GmbH
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Schock and Co GmbH
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Publication date
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Priority to AT90101365T priority Critical patent/ATE82346T1/en
Publication of EP0386426A2 publication Critical patent/EP0386426A2/en
Publication of EP0386426A3 publication Critical patent/EP0386426A3/en
Application granted granted Critical
Publication of EP0386426B1 publication Critical patent/EP0386426B1/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/24—Overflow devices for basins or baths
    • E03C1/242—Overflow devices for basins or baths automatically actuating supply or draining valves

Definitions

  • the device for preventing the backflow of dirty water into the fresh water pipe is designed as a pipe interrupter with always open ventilation openings, is arranged at least 150 mm above the highest possible water level (lowest point of the tub rim) and is preferably installed horizontally for the purpose of saving height, so that water is at the bottom of the tub -Air mixture flows in. It can also be designed as a free outlet with a safety distance of at least 20 mm between the lower edge of the inlet and the highest possible water level (lowest point of the tub edge), which is arranged above the water supply line so that the freely emerging water jet when it enters the water supply line in the manner of a Water jet pump entrains air so that a water-air mixture flows into the tub floor.
  • the water pressure alone creates an air bubble effect which can otherwise only be achieved by expensive electrical auxiliary devices.
  • air In addition to the air carried by the fresh water, it is of course also possible for air to be supplied to the base of the tub by a preferably electrically driven air blower, the air flow of which, according to the invention, is also fed into the tub floor when no water is flowing in.
  • a backflow preventer must be installed in the water supply line between the starting point of the air line and the pipe interrupter or the free outlet, so that the air cannot flow backwards to the pipe interrupter or the free outlet and exit there.
  • the blower air line also requires a non-return flap, which is, however, mostly installed in standard blowers for bathtubs. It is also advisable to draw a loop of the blower air line in a known manner up to the highest possible water level (lowest point of the tub rim) in order to prevent water from entering the blower even if the non-return flap is defective. Low voltage can also be used for safety reasons. If you want to completely avoid an electrical connection, an air blower driven by a water motor can be used according to the invention, the waste water flow of which is led into the overflow line.
  • the automatic system can be supplemented by a timer that switches on the fresh water supply and / or the air supply automatically for a short time after draining the tub with the water drain valve open.
  • At least one water inlet / water outlet combination combined with the parts for the overflow in the usual manner at the head end in the buttocks area of the tub floor. It can be covered with a removable drain strainer located in the tub floor.
  • the water inflow can also be arranged as a circular or U-shaped row of holes around the drain plug.
  • Two closely spaced rows of holes can also be provided in the base of the tub, one of which is for the water inflow, the other for the water outflow.
  • the row of water inlet holes is expediently located outside and a few millimeters higher than the row of water outlet holes, so that the row of water inlet holes can be completely emptied when the tub is drained.
  • the arrangement of the water inflow / drainage combination at the head end in the buttocks area of the tub floor ensures that water flowing in rises in the area of the back and around the body and immediately heats and massages the spinal area. This effect is intensified by the air bubbles flowing in with the fresh water.
  • the water drainage valve For reasons of water saving, it is advantageous to functionally link the water drainage valve to the automatic water level control in such a way that it blocks the water inflow valve - regardless of the water level - when the water drainage valve is open. This eliminates the waste of water. It should be possible to temporarily open the water inflow valve by hand, contrary to the lock by the automatic water level, for example to clean the tub with fresh water when the drain is open or to allow water to be taken in while lying in the tub.
  • An embodiment of the invention is characterized in that from the water inflow / outflow combination on the tub floor, the lines for water inflow and outflow are guided to a tank located next to the tub, preferably arranged under the tub rim, which holds the valve for the water inflow and the valve for contains the water drain.
  • the container extends over the entire tub height, so that its water level communicates with that in the tub, and contains a buoyancy body extending over the entire tub height, the buoyancy body actuating the water inflow valve, which is preferably designed as a diaphragm servo valve, the shutdown point of which is due to the buoyancy force of the Buoyancy body and a this counteracting, adjustable spring force is determined.
  • a purely mechanical diaphragm servo valve is particularly advantageous because, without requiring an electrical connection, it opens and switches off suddenly with only a small actuation force, the occurrence of control vibrations being avoided by the difference in the actuation forces when opening and switching off.
  • the container can also contain a magnetic body floating on the water level, which switches reed contacts arranged along the outside of the container, which are selected by the operating handle, and which switches off the membrane servo valve in the water supply line, which is equipped with an electrical switching coil, when the selected level is reached.
  • This arrangement with reed contacts no longer works fully mechanically, but requires an electrical mains connection or at least battery operation.
  • Two siphons can be placed one behind the other in the water drainage line, one of which is arranged in a known manner under the tub floor, the second under the tank.
  • the water inlet line opens into the water outlet line in front of the first siphon, the overflow line located below the tub rim behind the drain valve in front of the second siphon.
  • the first siphon ensures that air bubbles can only rise into the tub and not into the container, while the second siphon forms the odor trap against the sewage system in a manner known per se.
  • a closed system in the form of a membrane which is acted upon by the water pressure in the tub or a bellows which can act as an automatic water level can also be used as part of the invention Provide the water level in the tub with the force required to actuate the water inlet valve.
  • This closed system has a watertightly sealed switching diaphragm vessel, which is acted upon by the water pressure in the tub, the interior of which acts via an opening in the bottom of the tub, on the water inflow valve, which is preferably designed as a diaphragm servo valve, and closes the valve as soon as the switching diaphragm force counteracts a presettable force the desired water level determining spring.
  • This arrangement has a smaller overall height and is less sensitive to contamination than an open system.
  • the water inflow valve can be actuated in a contactless manner by an external, preferably ring-shaped permanent magnet which is moved by the switching membrane and surrounds a shaft made of non-magnetic material in which an internal soft iron pin acting as a valve cone is movably guided.
  • This design has the great advantage of working smoothly and yet fully mechanically on the diaphragm servo valve without the use of an O-ring ring
  • the switching membrane In a wave shape or to form the wall of the switching membrane vessel in a bellows-like manner.
  • the water inflow valve is connected upstream of a mixer tap with backflow preventer, a mixing thermostat or an electrical temperature-controlled independent of the flow rate
  • Instantaneous water heater with constant, pre-adjustable temperature.
  • the thermostat is the most convenient solution.
  • the instantaneous water heater is the most expensive solution when there is only a cold water connection. It generally requires a three-phase connection.
  • the buttocks area can simultaneously be designed as a standing area for showering, and the tub floor at the foot end can be raised somewhat and designed as an entry aid and seat.
  • An adult can sit here just to take a foot bath.
  • a child can sit there between the raised thighs of an adult taking a full bath.
  • the laying of the water drain in the buttocks area according to the invention creates completely new possibilities for the design of the tub.
  • Fig. 1 shows a section through the bathtub 1 seen from the side with the sanitary fitting for bathtubs according to the invention mounted thereon.
  • the water inflow 2 is arranged on the tub floor and combined with the water outlet 3, which is arranged at the head end in the buttocks area of the tub floor and is covered with a drain strainer 4 located in the tub floor.
  • the lines for water inflow 2 and water outlet 3 are guided to a container 5 arranged next to the tub 1, which has a valve 6 for the water inlet and a valve 7 for the water outlet.
  • a buoyancy body 8 which extends over the entire tub height floats in the container 5. Its buoyancy and the force of a spring 9 counteracting it determine the switching point of the water inflow valve 6, i.e. the water level, upon reaching which the water inlet valve 6 blocks the water inlet.
  • a lever linkage indicated as a functional arrow 10 in FIG. 1 transmits the switching force from the buoyancy body 8 to the water inflow valve 6.
  • the force with which the spring 9 presses the buoyancy body 8 downward is attached to an actuating shaft 11 by an actuating shaft 11 on the actuating shaft 11 Fig. 1, not shown, in Fig. 3 enlarged dashed cam 26 set.
  • first siphon 12 under the tub floor
  • second siphon 13 under the container 5.
  • the water inflow line 2 opens before the first siphon 12, the overflow line 14 behind the drain valve 7 and before the second siphon 13 into the water drain line 3.
  • a spring 16 fulfills the task of blocking the water inlet valve 6 - regardless of the water level - when the water outlet valve 7 is open by forcibly lifting the buoyancy element 8 when the plug 7 is lifted, which then blocks the water inlet valve 6 via the lever linkage 10.
  • the stopper 7 is fastened to a central rod 17 which is guided upwards through a longitudinal bore in the buoyancy body 8 and is actuated there by a second cam disk 18 fastened on the adjusting shaft 11.
  • FIGS. 1 and 3 The overall arrangement is shown in FIGS. 1 and 3 in the tub condition "full”, ie with the plug 7 closed and the spring 9 fully tensioned.
  • the curve cut into the disk 18 detects the pin 20 at the upper end of the central rod 17 and pulls the plug 7 upwards, thus opening the water drain valve 7, simultaneously lifting over the Spring 16 on the buoyancy body 8 and thus blocks the water inlet valve 6. This takes place in the rotation range 180 ° to 270 °.
  • the cam disc 26, which acts on a second pin located behind the pin 20, has a circular design, so that the spring 9 remains relaxed. This is a solution for the operation described in claim 12 is shown.
  • the drawn water level in the bathtub 1 corresponds to the setting "full" on the adjusting shaft 11 with about 11 cm below the tub rim. If a person climbs into the full tub, the water level rises by about 7 cm to the overflow 21, the is designed as a series of horizontal slots that are approx. 4 cm below the edge of the tub.
  • Fig. 2 the overall arrangement is shown schematically from the foot end. The same designations are used as in FIG. 1.
  • the actuating handle 22 acts on the adjusting shaft 11 via a universal joint (not shown).
  • the commercially available mixing thermostat mounted under the actuating handle 23 is to be connected in a known manner with its inputs to a cold water pipe or a hot water pipe.
  • the tub outlet of the mixing thermostat is to the water inlet valve 6, its shower outlet to the shower valve actuated by the handle 24.
  • the hand shower 25 can thus be used at any time and independently of the automatic water level.
  • the outer edge of the raised tub rim 15 can be designed as a bead so that any water dripping from the hand shower 25 is directed into the tub. All of the parts described can be mounted on the tub in the factory, so that only cold water, hot water and waste water need be connected to the building.
  • FIG. 4 shows schematically and seen from the side a longitudinal section through the center of the head end of a bathtub 27 with a sanitary fitting according to the invention mounted thereon.
  • Fig. 5 shows the same tub seen from the head end. The same designations are used in both figures.
  • a commercially available drain plug 28 is arranged at the head end in the buttocks area of the tub floor in a recess 29, which is designed such that the drain plug 28 does not interfere in the buttocks area when open.
  • Towards the canal is followed by a commercially available siphon 30 as an odor trap.
  • the water inflow 31 on the tub floor is arranged as a U-shaped row of holes 31 around the drain plug 28 and is a few millimeters higher than this.
  • the inflow holes 31 are connected by hoses 32 to an inflow distributor 33, into which a water inflow line 34, a water level measuring line 35 and a blower air line 37 coming from the blower 36 open.
  • the blower air line 37 is drawn as a loop over the lowest point of the edge of the bathtub 27.
  • a backflow preventer 38 is inserted. Above the highest possible water level (lowest point of the tub edge), the water inflow line is interrupted by the free outlet, which consists of an outlet nozzle 39, an inflow funnel 40 and an air gap 41 of at least 20 mm.
  • the inflow funnel 40 is arranged within the overflow connection 42 in such a way that any water which may escape from the air gap 41 is collected and discharged through an overflow pipe 43 to the siphon 30.
  • the overflow opening of the trough is designed as a row of horizontal slots 44.
  • the drain plug 28 is operated in a known manner with a Bowden cable 45.
  • a water level measuring line 35 and the Bowden cable 45 are guided to an automatic water level 46, which is set with an actuating handle 47 which carries a locking button 48.
  • a switch or, if the control handle 47 is made large enough, an adjustable switch can additionally be placed on the top side for the fan 36 in the control handle 47 Time switch can be installed.
  • a mixed water line 50 coming from a mixing thermostat 49 and the outlet nozzle 39 are connected to the automatic water level 46.
  • the mixing thermostat 49 is connected with its supply lines 51 for cold water and 52 for hot water to the water network of the house. These are the only work that the installer has to do other than connecting siphon 30 to the sewer.
  • a hand shower 53 with shower valve 54 is provided, which can be operated independently of the automatic water level 46.
  • All units are housed at the head end of the bathtub 27 under the raised part 55 of the bathtub edge.
  • the water level measuring line 35 which has a very small cross section, is connected to the inflow distributor 33 via a thickening 56.
  • the thickening 56 has an internal volume which corresponds approximately to that of the water-tightly closed switching membrane vessel contained in the automatic water level 46. It is thereby achieved that when switching the water level within the thickening 56 only moves by small amounts, so that the air column standing above it in the water level measuring line 35 transfers the water pressure in the trough 27 to the switching diaphragm vessel in an unadulterated manner.
  • FIGS. 6 and 7 A constructive embodiment of the automatic water level 46 with the bellows-shaped switching diaphragm vessel 57 is shown in FIGS. 6 and 7, FIG. 6 showing the state with the drain plug 28 open and the diaphragm servo valve 58 closed. To the extent that the parts are the same, the same designations are used in FIGS. 6 and 7 as in FIGS. 4 and 5.
  • the automatic water level 46 is set with the actuating handle 47 containing the locking button 48, which is fastened on a shaft 59 which is mounted in a carrier 60, on which all parts of the automatic water level 46 are mounted.
  • the carrier 60 is screwed to the raised part 55 of the edge of the bathtub.
  • the operating handle 47 covers the screws.
  • a cam wheel 61 sits on the same shaft 59 as the actuating handle 47 and controls all functions of the automatic water level 46.
  • the drain plug 28 is actuated via a double cam 61a, a Bowden cable lever 62 and the Bowden cable 45.
  • the spring 64 which acts on the switching diaphragm vessel 57 and determines the desired water level, is set via a curve 61b and a pin 63.
  • the curve 61c and a locking lever 64 hold the switching diaphragm vessel 57 in the stretched state via an angle arm 65 in the position shown in FIG. 6, and thus cause the diaphragm servo valve 58 (water inflow valve) - regardless of the water level - to be locked when the Plug 28 (water drain valve) is open.
  • Curve 61b and spring 64 are designed and matched to one another so that the position of the actuating handle 47, in which the pin 66 of the locking button 48 abuts a nose 67 of the support 60, the water level is "full" (approx. 11 cm below the tub rim, approx 4 cm below row of slots 44) in the bathtub.
  • the switching diaphragm vessel 57 is pressed together via the pin 63 and the spring 4 and the diaphragm servo valve 58 is thus opened by hand - contrary to the lock by the automatic water level .
  • the curve 61b can be designed correspondingly steeper in this rotation angle range.
  • the water pressure in the bathtub is transmitted to the switching diaphragm vessel 57 through the water level measuring line 35.
  • the underside of the switching diaphragm vessel 57 like the diaphragm servo valve 58, is fixedly mounted on the carrier 60.
  • a yoke 68 mounted on the upper, movable side of the switching diaphragm vessel 57 extends downward and there carries a permanent ring magnet 69, which is made of non-magnetic Material existing shaft 70 of the membrane servo valve 58 encloses without contact. If the permanent ring magnet 69 is moved downward, it lifts a soft iron pin (not shown) which is movably guided inside the shaft 70 and acts as a valve cone.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Environmental & Geological Engineering (AREA)
  • Domestic Plumbing Installations (AREA)
  • Multiple-Way Valves (AREA)
  • Bathtub Accessories (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Control For Baths (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

A sanitary fixture for bathtubs (1), the water inlet of which is arranged at the bottom of the tub, preferably in the region of the water outlet, or is combined with the latter, possesses a water-level automatic mechanism (5, 6, 8-11, 17) which is situated next to the tub (1), is preferably arranged underneath the rim of the tub, is actuated by the water level in the tub (1) and automatically closes the water- inlet valve (6) when a given, preset water level is reached.

Description

Die Erfindung betrifft eine Badewanne mit Sanitärgarnitur, deren Wasserzufluß am Wannenboden, vorzugsweise im Bereich des Wasserablaufs angeordnet bzw. mit diesem kombiniert ist. Badewannen weisen bisher ein Ablaufloch im Boden sowie ein Überlaufloch von 45-52 mm auf, dessen Oberkante ca. 20-35 mm unter dem Wannenrand liegt (DIN 4470, EN 232). Der Verschlußstöpsel im Ablaufloch wird entweder von Hand eingesetzt oder durch einen im Überlaufloch angeordneten Drehknopf betätigt. Dem Zufluß des Wassers dient eine .Sanitärarmatur, die meistens an der Wand über dem Wannenrand angebracht ist. Neuerdings werden auch Armaturen angeboten, bei denen der Wasserzufluß mit im Überlaufloch angeordnet ist, wobei zusätzlich eine Mischbatterie in der Wand erforderlich ist.The invention relates to a bathtub with sanitary fittings, the water inflow of which is arranged on the tub floor, preferably in the area of the water outlet, or is combined with this. So far, bathtubs have a drain hole in the floor and an overflow hole of 45-52 mm, the upper edge of which is approx. 20-35 mm below the edge of the bathtub (DIN 4470, EN 232). The stopper in the drain hole is either inserted by hand or operated by a rotary knob located in the overflow hole. A. Sanitary fitting, which is usually attached to the wall above the tub rim, serves the inflow of water. Faucets have also recently become available in which the water inflow is arranged in the overflow hole, with an additional mixer tap in the wall being required.

Es ist auch schon vorgeschlagen worden (DE 26 17 643 A 1), den Wasserzufluß am Wannenboden anzuordnen, und (GB-A-320 752; FR-A-824 881) mit einer neben der Wanne befindlichen, vorzugsweise unter dem Wannenrand angeordneten, vom Wasserstand in der Wanne betätigten Wasserstandsautomatik, die bei Erreichen eines bestimmten, voreinstellbaren Wasserstandes das Wasserzuflußventil automatisch verschließt, auszustatten. Diese Vorschläge konnten jedoch nicht verwirklicht werden, weil das Vorurteil bestand, man dürfe Badewannen nicht von unten her befüllen.It has also already been proposed (DE 26 17 643 A 1) to arrange the water inflow at the bottom of the tub, and (GB-A-320 752; FR-A-824 881) with one located next to the tub, preferably arranged under the tub rim, from the water level in the tub operated automatic water level, which automatically closes the water inflow valve when a certain, pre-adjustable water level is reached. However, these suggestions could not be implemented because the prejudice existed that bath tubs should not be filled from below.

Die bekannten Armaturen der eingangs genannten Art stehen aus der Einbaufläche hervor, so daß man sich daran stoßen kann. Das plätschernde Geräusch beim Zufließen des Wassers in die Wanne ist störend und Herstellung sowie Montage der Armaturen sind aufwendig.The known fittings of the type mentioned protrude from the installation area, so that you can bump into it. The rippling noise when the water flows into the tub is annoying and the manufacture and assembly of the fittings are complex.

Die Erfindung hat sich die Aufgabe gestellt, eine Badewanne zu schaffen, die diese Nachteile vermeidet, mehr Komfort bietet sowie Wasser und Energie spart. Sie ist gekennzeichnet durch eine Vorrichtung zur Verhinderung des Zurückfließens von Schmutzwasser in die Frischwasserleitung, die oberhalb des höchstmöglichen Wasserspiegels (tiefste Stelle des Wannenrandes) angeordnet ist.The invention has set itself the task of creating a bathtub that avoids these disadvantages, offers more comfort and saves water and energy. It is characterized by a device for preventing the backflow of dirty water into the fresh water pipe, which is located above the highest possible water level (lowest point of the tub rim).

Erst mit der erfindungsgemäßen Lösung wird das weit verbreitete Vorurteil überwunden, man dürfe Badewannen nicht von unten befüllen, weil dann Schmutzwasser in die Frischwasserleitung zurückfließen könne.Only with the solution according to the invention is the widespread prejudice overcome that bath tubs should not be filled from below, because dirty water can then flow back into the fresh water pipe.

Erfindungsgemäß ist die Vorrichtung zur Verhinderung des Zurückfließens von Schmutzwasser in die Frischwasserleitung als Rohrunterbrecher mit stets offenen Belüftungsöffnungen ausgeführt, mindestens 150 mm oberhalb des höchstmöglichen Wasserspiegels (tiefste Stelle des Wannenrandes) angeordnet und zum Zwecke der Höheneinsparung vorzugsweise horizontal eingebaut, so daß am Wannenboden ein Wasser-Luft-Gemisch zufließt. Sie kann auch als freier Auslauf mit einem Sicherungsabstand von mindestens 20 mm zwischen Unterkante Zulauf und höchstmöglichem Waserspiegel (tiefste Stelle des Wannenrandes) ausgeführt sein, der über der Wasserzuflußleitung so angeordnet ist, daß der frei austretende Wasserstrahl bei seinem Eintritt in die Wasserzuflußleitung nach Art einer Wasserstrahlpumpe Luft mitreißt, so daß am Wannenboden ein Wasser-Luft-Gemisch zufließt. So erzeugt durch die Erfindung allein der Wasserdruck einen Luftsprudeleffekt, wie er sonst nur durch teure elektrische Zusatzgeräte erzielt werden kann.According to the invention, the device for preventing the backflow of dirty water into the fresh water pipe is designed as a pipe interrupter with always open ventilation openings, is arranged at least 150 mm above the highest possible water level (lowest point of the tub rim) and is preferably installed horizontally for the purpose of saving height, so that water is at the bottom of the tub -Air mixture flows in. It can also be designed as a free outlet with a safety distance of at least 20 mm between the lower edge of the inlet and the highest possible water level (lowest point of the tub edge), which is arranged above the water supply line so that the freely emerging water jet when it enters the water supply line in the manner of a Water jet pump entrains air so that a water-air mixture flows into the tub floor. Thus, by means of the invention, the water pressure alone creates an air bubble effect which can otherwise only be achieved by expensive electrical auxiliary devices.

Es ist vorteilhaft, einen Teil des Wannenrandes, vorzugsweise im Bereich des Kopfendes, so weit hochzuziehen, daß darunter auch der Rohrunterbrecher oder der freie Auslauf, gegebenenfalls mit weiteren Aggregaten (Mischbatterie, Mischthermostat, Durchlauferhitzer , Luftsprudelgebläse, Whirlpoolpumpe usw.) untergebracht werden kann, wobei ebenfalls die Betätigungsgriffe, insbesondere derjenige für Ablaufventil und Wasserstandsautomatik, aber auch z.B. der Einstellgriff für einen Mischthermostaten, ein Brauseventil und eine Wannenrandschlupfdusche im im hochgezogenen Teil des Wannenrandes angeordnet sind. Für den Benutzer ergibt sich so der Vorteil, sämtliche Betätigungsgriffe leicht erreichen und sich zurücklehnen zu können, ohne befürchten zu müssen, daß die Badewanne hinter seinem Rücken überschwappt. Selbstverständlich können alle diese Funktionsteile auch in der Wand über oder neben der Badewanne untergebracht werden. Man verzichtet dann allerdings auf den großen Vorteil, dem Kunden eine vollständig vormontierte Badewanne anliefern zu können, bei welcher der Installateur nur noch Frischwasser und Abwasser anschließen muß.It is advantageous to pull up a part of the tub rim, preferably in the area of the head end, so that the pipe interrupter or the free outlet can also be accommodated, if necessary with additional units (mixer tap, mixer thermostat, instantaneous water heater, air bubble blower, whirlpool pump, etc.), whereby also the operating handles, in particular those for the drain valve and automatic water level, but also, for example, the adjusting handle for a mixing thermostat, a shower valve and a tub edge shower in the are arranged in the raised part of the tub rim. For the user, there is the advantage of being able to easily reach all actuation handles and lean back without having to fear that the bathtub will spill over behind his back. Of course, all of these functional parts can also be accommodated in the wall above or next to the bathtub. However, there is then no great advantage in being able to supply the customer with a completely pre-assembled bathtub, in which the installer only has to connect fresh water and waste water.

In weiterer Ausbildung der Erfindung wird der an der Außenseite der Wanne angeordnete Überlaufanschluß unterhalb des hochgezogenen Teils des Wannenrandes so ausgebildet, daß er aus den Belüftungsöffnungen des Rohrunterbrechers oder der freien Auslaufstrecke eventuell austretendes Spritzwasser mit auffängt. Es empfiehlt sich, die Überlauföffnung ebenfalls am Kopfende anzuordnen und als Reihe von horizontalen Schlitzen auszubilden, die auf der Höhe des oberen Randes des bisher üblichen Überlaufloches, d.h. ca. 4 cm unter der tiefsten Stelle des Wannenrades liegen, wobei die Maximaleinstellung "voll" der Wasserstandsautomatik einem Wasserstand entspricht, der um das durchschnittliche Volumen eines menschlichen Körpers (ca. 60 Liter entsprechend ca. 7 cm) unter der Höhe der Schlitzreihe, d.h. ca. 11 cm unterhalb der tiefsten Stelle des Wannenrandes liegt. Dadurch ergibt sich für die in der Wanne liegende Person ein um ca. 4-5 cm höherer Wasserstand als bisher, ein Vorteil insbesondere für größere Menschen, die nun in der Wanne keine kalten Schultern und Knie mehr bekommen. Trotzdem ist die Gefahr von Überschwemmungen beim Einsteigen in die gefüllte Wanne nicht größer als bisher, weil die Begrenzung des Einlaß-Wasserstandes, die bisher durch die Unterkante des Überlaufloches gegeben war, jetzt durch die Wasserstandsautomatik auf gleicher Höhe sichergestellt ist. Die Wassermenge, die bisher beim Einsteigen in die volle Wanne durch das Überlaufloch ablief und damit als Wasser und Heizenergie vergeudet wurde, bleibt jetzt nutzbar in der Wanne. Die Einsparung liegt darin, daß die Notwendigkeit, Wasser nachzufüllen, wegen des höheren Wässerstandes nicht mehr empfunden wird.In a further embodiment of the invention, the overflow connection arranged on the outside of the tub is formed below the raised part of the tub rim in such a way that it also catches any water that may escape from the ventilation openings of the pipe interrupter or the free outlet section. It is recommended to also arrange the overflow opening at the head end and to form it as a series of horizontal slots that are at the height of the upper edge of the previously common overflow hole, ie approx. 4 cm below the lowest point of the tub wheel, the maximum setting being "full" Automatic water level corresponds to a water level that is around the average volume of a human body (approx. 60 liters corresponding to approx. 7 cm) below the height of the slot row, ie approx. 11 cm below the lowest point of the tub rim. This results in a 4-5 cm higher water level for the person lying in the tub than before, an advantage especially for taller people who no longer get cold shoulders and knees in the tub. Nevertheless, the risk of flooding when entering the filled tub is no greater than before, because the limitation of the inlet water level, which was previously given by the lower edge of the overflow hole, is now ensured at the same level by the automatic water level. The amount of water that previously ran through the overflow hole when entering the full tub and was thus wasted as water and heating energy can now be used in the tub. The saving lies in the fact that the need to refill water is no longer felt due to the higher water level.

Außer der vom Frischwasser mitgeführten Luft kann selbstverständlich zusätzlich durch ein vorzugsweise elektrisch angetriebenes Luftgebläse, dessen Luftstrom erfindungsgemäß mit in die Wasserzuflußleitung geführt ist, auch dann am Wannenboden Luft zugeführt werden, wenn kein Wasser zufließt. Hierbei muß in die Wasserzuflußleitung zwischen dem Ansatzpunkt der Luftleitung und dem Rohrunterbrecher bzw. dem freien Auslauf ein Rückflußverhinderer eingebaut sein, so daß die Luft nicht rückwärts zum Rohrunterbrecher bzw. dem freien Auslauf strömen und dort austreten kann.In addition to the air carried by the fresh water, it is of course also possible for air to be supplied to the base of the tub by a preferably electrically driven air blower, the air flow of which, according to the invention, is also fed into the tub floor when no water is flowing in. Here, a backflow preventer must be installed in the water supply line between the starting point of the air line and the pipe interrupter or the free outlet, so that the air cannot flow backwards to the pipe interrupter or the free outlet and exit there.

Auch die Gebläse-Luftleitung benötigt eine Rückschlagklappe, die jedoch zumeist in handelsübliche Gebläse für Badewannen eingebaut ist. Es empfiehlt sich zusätzlich, in bekannter Weise eine Schleife der Gebläse-Luftleitung bis über den höchstmöglichen Wasserstand (tiefster Punkt des Wannenrandes) zu ziehen, um auch bei Defekt der Rückschlagklappe das Eindringen von Wasser in das Gebläse auszuschließen. Aus Sicherheitsgründen kann außerdem Niederspannung angewendet werden. Will man einen Elektroanschluß ganz vermeiden, kann erfindungsgemäß ein mit Wassermotor angetriebenes Luftgebläse eingesetzt werden, dessen Abwasserstrom in die Überlaufleitung geführt ist.The blower air line also requires a non-return flap, which is, however, mostly installed in standard blowers for bathtubs. It is also advisable to draw a loop of the blower air line in a known manner up to the highest possible water level (lowest point of the tub rim) in order to prevent water from entering the blower even if the non-return flap is defective. Low voltage can also be used for safety reasons. If you want to completely avoid an electrical connection, an air blower driven by a water motor can be used according to the invention, the waste water flow of which is led into the overflow line.

Zum Durchspülen der Frischwasserleitung nach dem Baden kann die Automatik durch ein Zeitglied ergänzt werden, das nach dem Ablassen der Wanne bei geöffnetem Wasserablaufventil die Frischwasserzufuhr und/oder die Luftzufuhr selbsttätig für kurze Zeit einschaltet.To flush the fresh water line after bathing, the automatic system can be supplemented by a timer that switches on the fresh water supply and / or the air supply automatically for a short time after draining the tub with the water drain valve open.

Besonders vorteilhaft ist es, zumindest eine in üblicher Weise mit den Teilen für den Überlauf kombinierte Wasserzufluß/Wasserablauf-Kombination am Kopfende im Gesäßbereich des Wannenbodens anzuordnen. Sie kann mit einem im Wannenboden liegenden, herausnehmbaren Abflußsieb abgedeckt sein.It is particularly advantageous to arrange at least one water inlet / water outlet combination combined with the parts for the overflow in the usual manner at the head end in the buttocks area of the tub floor. It can be covered with a removable drain strainer located in the tub floor.

Es ist vorteilhaft, das Ablaufsieb in die Breite zu ziehen, etwas im Wannenboden zu versenken und/oder seine Öffnungen horizontal auszurichten, damit einerseits die Wasser-Luft-Strömung auf der ganzen Breite des Rückens austritt und andererseits das Ablaufsieb durch das Gesäß nicht vollständig verschlossen werden kann.It is advantageous to pull the drain strainer wide, to sink it slightly into the tub floor and / or to align its openings horizontally so that on the one hand the water-air flow emerges over the entire width of the back and on the other hand the drain strainer is not completely closed by the buttocks can be.

Bei Verwendung eines handelsüblichen Stöpsels im Wannenboden als Ventil für den Wasserablauf kann der Wasserzufluß auch als kreisförmige oder U-förmige Lochreihe um den Ablaufstöpsel herum angeordnet sein. Es können auch zwei dicht beieinanderliegende Lochreihen im Wannenboden vorgesehen werden, von denen eine dem Wasserzufluß, die andere dem Wasserablauf dient. Zweckmäßig liegt dabei die Wasserzufluß-Lochreihe außen und einige Millimeter höher als die Wasserablauf-Lochreihe, damit sich die Wasserzufluß-Lochreihe beim Ablassen der Wanne vollständig entleeren kann.When using a commercially available plug in the tub floor as a valve for the water drainage, the water inflow can also be arranged as a circular or U-shaped row of holes around the drain plug. Two closely spaced rows of holes can also be provided in the base of the tub, one of which is for the water inflow, the other for the water outflow. The row of water inlet holes is expediently located outside and a few millimeters higher than the row of water outlet holes, so that the row of water inlet holes can be completely emptied when the tub is drained.

Durch die Anordnung der Wasserzufluß/Wasserablauf-Kombination am Kopfende im Gesäßbereich des Wannenbodens wird erreicht, daß nachfließendes Wasser im Bereich des Rückens und um den Körper herum aufsteigt und unmittelbar den Wirbelsäulenbereich erwärmt und massiert. Dieser Effekt wird noch verstärkt durch die mit dem Frischwasser zuströmenden Luftblasen.The arrangement of the water inflow / drainage combination at the head end in the buttocks area of the tub floor ensures that water flowing in rises in the area of the back and around the body and immediately heats and massages the spinal area. This effect is intensified by the air bubbles flowing in with the fresh water.

Aus Gründen der Wasserersparnis ist es vorteilhaft, das Wasserablaufventil derart mit der Wasserstandsautomatik funktionell zu verknüpfen, daß diese das Wasserzuflußventil - unabhängig vom Wasserstand - sperrt, wenn das Wasserablaufventil geöffnet ist. Dadurch ist die Vergeudung von Wasser ausgeschlossen. Dabei soll es möglich sein, das Wasserzuflußventil - entgegen der Sperre durch die Wasserstandsautomatik - vorübergehend von Hand zu öffnen, beispielsweise um die Wanne bei geöffnetem Ablauf mit frischem Wasser reinigen oder um Wasser einlassen zu können, während man in der Wanne liegt.For reasons of water saving, it is advantageous to functionally link the water drainage valve to the automatic water level control in such a way that it blocks the water inflow valve - regardless of the water level - when the water drainage valve is open. This eliminates the waste of water. It should be possible to temporarily open the water inflow valve by hand, contrary to the lock by the automatic water level, for example to clean the tub with fresh water when the drain is open or to allow water to be taken in while lying in the tub.

Es kommt sehr darauf an, diese zunächst kompliziert erscheinenden funktionellen Verknüpfungen dem Benutzer leicht verständlich darzubieten. Dies geschieht in weiterer Ausbildung der Erfindung durch einen kombinierten Betätigungsgriff, durch dessen Drehen (z.B. nach links) zunächst das Wasserablaufventil gesperrt, dann - beim Weiterdrehen - der gewünschte Wasserstand an einer Skala eingestellt wird, wobei
entweder durch Hereindrücken des Betätigungsgriffes entgegen einer Federkraft das Wasserzuflußventil - unabhängig von der Drehstellung des Betätigungsgriffes - geöffnet wird, solange diese Betätigung von Hand dauert,
oder durch Weiterdrehen des Betätigungsgriffes über einen dem Wasserstand "voll" auf der Skala entsprechenden Druckpunkt hinaus entgegen der Kraft einer Rückstellfeder das Wasserzuflußventil - unabhängig vom Wasserstand - geöffnet wird, solange diese Betätigung von Hand dauert,
oder der Betätigungsgriff einen seitlich angeordneten Sperrknopf aufweist, bei dessen Hineindrücken und Weiterdrehen des Betätigungsgriffes über die Stellung "voll" an der Skala hinaus das Wasserzuflußventil - unabhängig vom Wasserstand - geöffnet wird,
und durch dessen Zurückdrehen (ganz nach rechts) das Wasserzuflußventil wieder gesperrt sowie das Wasserablaufventil geöffnet wird.It is very important to present these functional links, which at first seem complicated, to the user in an easily understandable manner. This is done in a further embodiment of the invention by a combined actuating handle, by turning (for example to the left) first the water drain valve is blocked, then - when turning further - the desired water level is set on a scale, whereby
either by pushing the operating handle in against a spring force, the water inflow valve is opened - regardless of the rotary position of the operating handle - as long as this operation takes place by hand,
or by turning the operating handle beyond a pressure point corresponding to the water level "full" on the scale, against the force of a return spring, the water inflow valve is opened - regardless of the water level - as long as this operation takes place by hand,
or the actuating handle has a locking button arranged on the side, when the actuating handle is pushed in and rotated further beyond the "full" position on the scale, the water inflow valve is opened, regardless of the water level,
and by turning it back (all the way to the right) the water inlet valve is blocked again and the water outlet valve is opened.

Eine Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß von der Wasserzufluß/Wasserablauf-Kombination am Wannenboden die Leitungen für Wasserzufluß und Wasserablauf zu einem neben der Wanne befindlichen, vorzugsweise unter dem Wannenrand angeordneten Behälter geführt sind, der das Ventil für den Wasserzufluß und das Ventil für den Wasserablauf enthält. Der Behälter erstreckt sich über die ganze Wannenhöhe, so daß sein Wasserstand mit demjenigen in der Wanne kommuniziert, und enthält einen sich über die ganze Wannenhöhe erstreckenden Auftriebskörper, wobei der Auftriebskörper das vorzugsweise als Membran-Servoventil ausgebildete Wasserzuflußventil betätigt, dessen Abschaltpunkt durch die Auftriebskraft des Auftriebskörpers und eine dieser entgegenwirkende, einstellbare Federkraft bestimmt ist.An embodiment of the invention is characterized in that from the water inflow / outflow combination on the tub floor, the lines for water inflow and outflow are guided to a tank located next to the tub, preferably arranged under the tub rim, which holds the valve for the water inflow and the valve for contains the water drain. The container extends over the entire tub height, so that its water level communicates with that in the tub, and contains a buoyancy body extending over the entire tub height, the buoyancy body actuating the water inflow valve, which is preferably designed as a diaphragm servo valve, the shutdown point of which is due to the buoyancy force of the Buoyancy body and a this counteracting, adjustable spring force is determined.

Die Verwendung eines rein mechanisch arbeitenden Membran-Servoventils ist deshalb besonders vorteilhaft, weil es, ohne eines elektrischen Anschlusses zu bedürfen, bei nur geringer Betätigungskraft schlagartig öffnet und abschaltet, wobei durch die Differenz der Betätitungskräfte beim Öffnen und Abschalten das Auftreten von Regelschwingungen vermieden wird.The use of a purely mechanical diaphragm servo valve is particularly advantageous because, without requiring an electrical connection, it opens and switches off suddenly with only a small actuation force, the occurrence of control vibrations being avoided by the difference in the actuation forces when opening and switching off.

Eine Dosierung der Wasserzuflußrate ist weder erforderlich noch zweckmäßig, da selbst beim Einlassen der Wanne mit vollem Wasserdruck nichts mehr spritzen kann und das Geräusch ohnehin stark vermindert ist. Das Membran-Servoventil hat nur die Betriebszustände "auf" und "zu".A metering of the water inflow rate is neither necessary nor expedient, since even when the tub is let in at full water pressure, nothing can splash and the noise is greatly reduced anyway. The diaphragm servo valve only has the operating states "open" and "closed".

Anstelle des Auftriebskörpers kann der Behälter auch einen auf dem Wasserspiegel schwimmenden Magnetkörper enthalten, der längs der Außenseite des Behälters angeordnete Reedkontakte schaltet, die vom Betätigungsgriff angewählt werden und das mit elektrischer Schaltspule ausgestattete Membran-Servoventil in der Wasserzuflußleitung bei Erreichen des jeweils angewählten Niveaus abschaltet. Diese Anordnung mit Reedkontakten arbeitet nicht mehr voll mechanisch, sondern benötigt einen elektrischen Netzanschluß oder zumindest Batteriebetrieb.Instead of the buoyancy body, the container can also contain a magnetic body floating on the water level, which switches reed contacts arranged along the outside of the container, which are selected by the operating handle, and which switches off the membrane servo valve in the water supply line, which is equipped with an electrical switching coil, when the selected level is reached. This arrangement with reed contacts no longer works fully mechanically, but requires an electrical mains connection or at least battery operation.

In die Wasserablaufleitung können zwei Sifone hintereinander gelegt werden, von denen einer in bekannter Weise unter dem Wannenboden, der zweite unter dem Behälter angeordnet ist. Die Wasserzuflußleitung mündet vor dem ersten Sifon, die unterhalb des Wannenrandes ansetzende Überlaufleitung hinter dem Ablaufventil vor dem zweiten Sifon in die Wasserablaufleitung ein. So stellt der erste Sifon sicher, daß Luftblasen nur in die Wanne und nicht in den Behälter aufsteigen können, während der zweite Sifon in an sich bekannter Weise den Geruchsverschluß gegen die Kanalisation bildet.Two siphons can be placed one behind the other in the water drainage line, one of which is arranged in a known manner under the tub floor, the second under the tank. The water inlet line opens into the water outlet line in front of the first siphon, the overflow line located below the tub rim behind the drain valve in front of the second siphon. Thus, the first siphon ensures that air bubbles can only rise into the tub and not into the container, while the second siphon forms the odor trap against the sewage system in a manner known per se.

Anstelle eines offenen Systems in Form eines sich über die ganze Wannenhöhe erstreckenden Auftriebskörpers oder Magnetkörpers, der in einem offenen Behälter schwimmt, kann als Wasserstandsautomatik im Rahmen der Erfindung auch ein geschlossenes System in Form einer vom Wasserdruck in der Wanne beaufschlagten Membran oder eines Faltenbalges die vom Wasserstand in der Wanne abhängige Kraft zur Betätigung des Wasserzuflußventils liefern.Instead of an open system in the form of a buoyancy body or magnetic body which extends over the entire tub height and which floats in an open container, a closed system in the form of a membrane which is acted upon by the water pressure in the tub or a bellows which can act as an automatic water level can also be used as part of the invention Provide the water level in the tub with the force required to actuate the water inlet valve.

Dieses geschlossene System weist ein wasserdicht verschlossenes, vom Wasserdruck in der Wanne beaufschlagtes Schaltmembrangefäß auf, dessen Inneres über eine Öffnung im Boden der Badewanne, auf das vorzugsweise als Membran-Servoventil ausgebildete Wasserzuflußventil einwirkt und dieses verschließt, sobald die Schaltmembrankraft die Gegenkraft einer voreinstellbaren, den gewünschten Wasserstand bestimmenden Feder überschreitet. Diese Anordnung hat eine kleinere Bauhöhe und ist unempfindlicher gegen Verschmutzung als ein offenes System.This closed system has a watertightly sealed switching diaphragm vessel, which is acted upon by the water pressure in the tub, the interior of which acts via an opening in the bottom of the tub, on the water inflow valve, which is preferably designed as a diaphragm servo valve, and closes the valve as soon as the switching diaphragm force counteracts a presettable force the desired water level determining spring. This arrangement has a smaller overall height and is less sensitive to contamination than an open system.

Erfindungsgemäß kann das Wasserzuflußventil berührungslos durch einen außen liegenden, vorzugsweise ringförmig ausgebildeten Permanentmagneten betätigt werden, der von der Schaltmembran bewegt wird und einen aus unmagnetischem Material bestehenden Schaft umschließt, in dem ein innen liegender, als Ventilkegel wirkender Weicheisenstift beweglich geführt ist. Diese Konstruktion hat den großen Vorteil, ohne Rundschnurring-Durchführung am Membran-Servoventil reibungsfrei und doch voll mechanisch zu arbeitenAccording to the invention, the water inflow valve can be actuated in a contactless manner by an external, preferably ring-shaped permanent magnet which is moved by the switching membrane and surrounds a shaft made of non-magnetic material in which an internal soft iron pin acting as a valve cone is movably guided. This design has the great advantage of working smoothly and yet fully mechanically on the diaphragm servo valve without the use of an O-ring ring

Zur Vergrößerung des verfügbaren Schaltweges ist es zweckmäßig, die Schaltmembran wellenförmig oder die Wand des Schaltmembrangefäßes faltenbalgartig auszubilden.To increase the available switching travel, it is expedient to design the switching membrane in a wave shape or to form the wall of the switching membrane vessel in a bellows-like manner.

Dem Wasserzuflußventil wird durch Vorschalten einer Mischbatterie mit Rückflußverhindern, eines Mischthermostaten oder eines durchflußmengenunabhängig temperaturgeregelten elektrischen Durchlauferhitzers Wasser mit konstanter, voreinstellbarer Temperatur zugeführt. Dabei ist der Thermostat als komfortabelste Lösung zu bevorzugen. Oer Durchlauferhitzer als teuerste Lösung kommt in Betracht, wenn nur ein Kaltwasseranschluß vorhanden ist. Er erfordert im allgemeinen einen Drehstromanschluß.The water inflow valve is connected upstream of a mixer tap with backflow preventer, a mixing thermostat or an electrical temperature-controlled independent of the flow rate Instantaneous water heater with constant, pre-adjustable temperature. The thermostat is the most convenient solution. The instantaneous water heater is the most expensive solution when there is only a cold water connection. It generally requires a three-phase connection.

Bei einer Badewanne mit der erfindungsgemäßen Garnitur, bei der die Wasserzufluß/Wasserablauf-Kombination am Kopfende im Gesäßbereich des Wannenbodens angeordnet ist, kann der Gesäßbereich gleichzeitig als Standfläche zum Duschen ausgebildet sowie der Wannenboden am Fußende etwas angehoben und als Einstiegshilfe und Sitzfläche ausgebildet werden. Hier kann ein Erwachsener sitzen, um lediglich ein Fußbad zu nehmen. Oder ein Kind kann dort zwischen den hochgelegten Unterschenkeln eines ein Vollbad nehmenden Erwachsenen sitzen. So schafft das erfindungsgemäße Verlegen des Wasserablaufs in den Gesäßbereich völlig neue Möglichkeiten der Wannengestaltung.In the case of a bathtub with the set according to the invention, in which the water inflow / outflow combination is arranged at the head end in the buttocks area of the tub floor, the buttocks area can simultaneously be designed as a standing area for showering, and the tub floor at the foot end can be raised somewhat and designed as an entry aid and seat. An adult can sit here just to take a foot bath. Or a child can sit there between the raised thighs of an adult taking a full bath. The laying of the water drain in the buttocks area according to the invention creates completely new possibilities for the design of the tub.

In den Figuren sind Ausführungsbeispiele des Erfindungsgegenstandes schematisch dargestellt. Es zeigen

  • Fig. 1 einen Längsschnitt eines ersten Ausführungsbeispiels,
  • Fig. 2 eine Ansicht des ersten Ausführungsbeispiels mit Blickrichtung vom Fußende her,
  • Fig. 3 eine Ansicht einer Kurvenscheibe des ersten Ausführungsbeispieles,
  • Fig. 4 einen unvollständig dargestellten Längsschnitt eines zweiten Ausführungsbeispieles,
  • Fig. 5 eine Ansicht des zweiten Ausführungsbeispieles mit Blickrichtung auf das Kopfende,
  • Fig. 6 einen Schnitt durch die Wasserstandsautomatik des zweiten Ausführungsbeispieles bei geöffnetem Ablaufstöpsel,
  • Fig. 7 einen Schnitt entsprechend Fig. 6 bei geschlossenem Ablaufstöpsel.
Exemplary embodiments of the subject matter of the invention are shown schematically in the figures. Show it
  • 1 shows a longitudinal section of a first exemplary embodiment,
  • 2 is a view of the first embodiment looking from the foot end,
  • 3 is a view of a cam disc of the first embodiment,
  • 4 shows an incompletely illustrated longitudinal section of a second exemplary embodiment,
  • 5 is a view of the second embodiment looking towards the head end,
  • 6 shows a section through the automatic water level of the second exemplary embodiment with the drain plug open,
  • Fig. 7 is a section corresponding to FIG. 6 with the drain plug closed.

Fig. 1 zeigt einen Schnitt durch die von der Seite gesehene Badewanne 1 mit der daran montierten Sanitärgarnitur für Badewannen nach der Erfindung. Der Wasserzufluß 2 ist am Wannenboden angeordnet und mit dem Wasserablauf 3 kombiniert, der am Kopfende im Gesäßbereich des Wannenbodens angeordnet und mit einem im Wannenboden liegenden Abflußsieb 4 abgedeckt ist.Fig. 1 shows a section through the bathtub 1 seen from the side with the sanitary fitting for bathtubs according to the invention mounted thereon. The water inflow 2 is arranged on the tub floor and combined with the water outlet 3, which is arranged at the head end in the buttocks area of the tub floor and is covered with a drain strainer 4 located in the tub floor.

Die Leitungen für Wasserzufluß 2 und Wasserablauf 3 sind zu einem neben der Wanne 1 angeordneten Behälter 5 geführt, der ein Ventil 6 für den Wasserzufluß und ein Ventil 7 für den Wasserablauf aufweist. Als Vorrichtung, die bei Erreichen eines bestimmten, voreinstellbaren Wasserstandes das Wasserzuflußventil 6 automatisch verschließt, schwimmt in dem Behälter 5 ein sich über die ganze Wannenhöhe erstreckender Auftriebskörper 8. Sein Auftrieb und die Kraft einer diesem entgegenwirkenden Feder 9 bestimmen den Schaltpunkt des Wasserzuflußventils 6, d.h. den Wasserstand, bei dessen Erreichen das Wasserzuflußventil 6 den Wasserzufluß sperrt.The lines for water inflow 2 and water outlet 3 are guided to a container 5 arranged next to the tub 1, which has a valve 6 for the water inlet and a valve 7 for the water outlet. As a device which automatically closes the water inflow valve 6 when a certain, pre-adjustable water level is reached, a buoyancy body 8 which extends over the entire tub height floats in the container 5. Its buoyancy and the force of a spring 9 counteracting it determine the switching point of the water inflow valve 6, i.e. the water level, upon reaching which the water inlet valve 6 blocks the water inlet.

Ein in Fig. 1 als Funktionspfeil 10 angedeutetes Hebelgestänge überträgt die Schaltkraft vom Auftriebskörper 8 auf das Wasserzuflußventil 6. Die Kraft, mit der die Feder 9 den Auftriebskörper 8 nach unten drückt, wird an einer Stellwelle 11 durch eine auf der Stellwelle 11 befestigte, in Fig. 1 nicht dargestellte, in Fig. 3 vergrößert gestrichelt skizzierte Kurvenscheibe 26 eingestellt.A lever linkage indicated as a functional arrow 10 in FIG. 1 transmits the switching force from the buoyancy body 8 to the water inflow valve 6. The force with which the spring 9 presses the buoyancy body 8 downward is attached to an actuating shaft 11 by an actuating shaft 11 on the actuating shaft 11 Fig. 1, not shown, in Fig. 3 enlarged dashed cam 26 set.

Unter dem Wannenboden befindet sich ein erster Sifon 12, unter dem Behälter 5 ein zweiter Sifon 13. Die Wasserzuflußleitung 2 mündet vor dem ersten Sifon 12, die Überlaufleitung 14 hinter dem Ablaufventil 7 und vor dem zweiten Sifon 13 in die Wasserablaufleitung 3 ein.There is a first siphon 12 under the tub floor, a second siphon 13 under the container 5. The water inflow line 2 opens before the first siphon 12, the overflow line 14 behind the drain valve 7 and before the second siphon 13 into the water drain line 3.

Unter einem Teil 15 des Wannenrandes, der im Bereich des Kopfendes der Wanne hochgezogen ist, liegt oberhalb des Behälters 5 ein horizontal eingebauter Rohrunterbrecher, der in Fig. 1 nicht dargestellt ist, da er hinter dem Wasserzuflußventil 6 liegt. Es ist zweckmäßig, Wasserzuflußventil 6 und nachgeschalteten Rohrunterbrecher als konstruktive Einheit auszuführen.Under a part 15 of the tub rim, which is pulled up in the area of the head end of the tub, there is a horizontally installed pipe interrupter above the tank 5, which is not shown in FIG. 1 because it lies behind the water inflow valve 6. It is expedient to design water inlet valve 6 and downstream pipe interrupters as a structural unit.

Eine Feder 16 erfüllt die Aufgabe, das Wasserzuflußventil 6 - unabhängig vom Wasserstand - zu sperren, wenn das Wasserablaufventil 7 geöffnet ist, indem sie beim Anheben des Stöpsels 7 den Auftriebskörper 8 zwangsweise mit anhebt, der dann über das Hebelgestänge 10 das Wasserzuflußventil 6 sperrt.A spring 16 fulfills the task of blocking the water inlet valve 6 - regardless of the water level - when the water outlet valve 7 is open by forcibly lifting the buoyancy element 8 when the plug 7 is lifted, which then blocks the water inlet valve 6 via the lever linkage 10.

Der Stöpsel 7 ist an einer Zentralstange 17 befestigt, die durch eine Längsbohrung im Auftriebskörper 8 nach oben geführt ist und dort von einer zweiten, auf der Stellwelle 11 befestigten Kurvenscheibe 18 betätigt wird.The stopper 7 is fastened to a central rod 17 which is guided upwards through a longitudinal bore in the buoyancy body 8 and is actuated there by a second cam disk 18 fastened on the adjusting shaft 11.

Auf der Stellwelle 11 sitzen also zwei Kurvenscheiben, die miteinander gedreht werden, nämlich die erste Kurvenscheibe 26 (Fig. 3) zum Einstellen der Federkraft 9 und damit des gewünschten Wasserstandes, die zweite Kurvenscheibe 18 zum Betätigen des Stöpsels 7.Two cam disks, which are rotated with one another, are seated on the adjusting shaft 11, namely the first cam disk 26 (FIG. 3) for adjusting the spring force 9 and thus the desired water level, the second cam disk 18 for actuating the plug 7.

Die Gesamtanordnung ist in den Fig. 1 und 3 im Zustand Wanne "voll" dargestellt, d.h. mit geschlossenem Stöpsel 7 und voll gespannter Feder 9.The overall arrangement is shown in FIGS. 1 and 3 in the tub condition "full", ie with the plug 7 closed and the spring 9 fully tensioned.

Wird die Stellwelle 11 entgegen einem abgefederten Druckpunkt noch weiter nach links gedreht, so greift ein Nocken 19 der Kurvenscheibe 18 in das Hebelgestänge 10 im Sinne der Öffnung des Wasserzuflußventils 6 ein, und zwar unabhängig vom Wasserstand und nur, solange die Betätigung von Hand andauert. Wird die Stellwelle 11 aus der gezeichneten Stellung bis zu 180° nach rechts gedreht, so wird durch die Kurvenscheibe 26 die Feder 9 kontinuierlich entspannt (Einstellen des gewünschten Wasserstandes von Wanne "voll" = 0° bis Wanne "leer" = 180°) . Dabei ändert sich an der Stellung des Stöpsels 7 nichts, da die Kurvenscheibe 18 in diesem Winkelbereich kreisförmige ausgeführt ist. Wird nun über den Einstellpunkt "leer" hinaus weiter nach rechts gedreht, so erfaßt die in die Scheibe 18 eingeschnittene Kurve den Stift 20 am oberen Ende der Zentralstange 17 und zieht den Stöpsel 7 nach oben, öffnet also das Wasserablaufventil 7, hebt gleichzeitig über die Feder 16 den Auftriebskörper 8 an und sperrt damit das Wasserzuflußventil 6. Dies geschieht im Drehbereich 180° bis 270°. In diesem Bereich ist die Kurvenscheibe 26, die auf einen zweiten, hinter dem Stift 20 liegenden Stift einwirkt, kreisförmig ausgeführt, so daß die Feder 9 unverändert entspannt bleibt. Damit ist eine Losung für die in Anspruch 12 beschriebene Funktionsweise dargestellt.If the control shaft 11 is rotated further to the left against a spring-loaded pressure point, a cam 19 of the cam plate 18 engages in the lever linkage 10 in the sense of the opening of the water inlet valve 6, regardless of the water level and only as long as the manual operation continues. If the setting shaft 11 is rotated up to 180 ° to the right from the position shown, the spring 9 is continuously relaxed by the cam disk 26 (setting the desired water level from tub "full" = 0 ° to tub "empty" = 180 °). Nothing changes in the position of the plug 7, since the cam 18 is circular in this angular range. If the setting point "empty" is turned further to the right, the curve cut into the disk 18 detects the pin 20 at the upper end of the central rod 17 and pulls the plug 7 upwards, thus opening the water drain valve 7, simultaneously lifting over the Spring 16 on the buoyancy body 8 and thus blocks the water inlet valve 6. This takes place in the rotation range 180 ° to 270 °. In this area, the cam disc 26, which acts on a second pin located behind the pin 20, has a circular design, so that the spring 9 remains relaxed. This is a solution for the operation described in claim 12 is shown.

Der eingezeichnete Wasserstand in der Badewanne 1 entspricht mit ca. 11 cm unter dem Wannenrand der Einstellung "voll" an der Stellwelle 11. Steigt eine Person in die volle Wanne, so steigt der Wasserstand um ca. 7 cm bis zum Überlauf 21 an, der als Reihe von horizontalen Schlitzen ausgebildet ist, die ca. 4 cm unter dem Wannenrand liegen.The drawn water level in the bathtub 1 corresponds to the setting "full" on the adjusting shaft 11 with about 11 cm below the tub rim. If a person climbs into the full tub, the water level rises by about 7 cm to the overflow 21, the is designed as a series of horizontal slots that are approx. 4 cm below the edge of the tub.

In Fig. 2 ist die Gesamtanordnung vom Fußende her gesehen schematisch dargestellt. Dabei sind die gleichen Bezeichnungen verwendet wie in Fig. 1.In Fig. 2 the overall arrangement is shown schematically from the foot end. The same designations are used as in FIG. 1.

Auf dem hochgezogenen Teil 15 des Wannenrandes sind auf der linken Schrägseite ein Betätigungsgriff 22 für die beschriebene Wasserstandsautomatik und ein Betätigungsgriff 23 für den nicht dargestellten, unter dem Wannenrand montierten Mischthermostaten, auf der rechten Schrägseite ein Betätigungsgriff 24 für ein Brauseventil und der Kopf einer Handbrause 25 in Form einer aus dem Wannenrand 15 herausziehbaren Schlauchbrause angeordnet. Alle Bedienungselemente sind damit sowohl von einer vor der Wanne stehenden als auch von einer in der Wanne liegenden Person leicht zu erreichen.On the raised part 15 of the tub rim, on the left sloping side, there is an operating handle 22 for the automatic water level described and an operating handle 23 for the mixing thermostat (not shown) mounted under the tub rim, on the right sloping side an operating handle 24 for a shower valve and the head of a hand shower 25 arranged in the form of a pull-out hose shower 15. All controls are therefore easy to reach both from a person standing in front of the tub and from a person lying in the tub.

Der Betätigungsgriff 22 wirkt über ein nicht dargestelltes Kardangelenk auf die Stellwelle 11. Der unter dem Betätigungsgriff 23 montierte handelsübliche Mischthermostat ist in bekannter Weise mit seinen Eingängen an eine Kaltwasserleitung bzw. eine Warmwasserleitung anzuschließen. Der Wannenabgang des Mischthermostaten ist zum Wasserzuflußventil 6, sein Duschabgang zu dem vom Griff 24 betätigten Brauseventil geführt. Die Handbrause 25 kann damit jederzeit und unabhängig von der Wasserstandsautomatik benutzt werden. Die Außenkante des überhöhten Wannenrandes 15 kann als Wulst ausgebildet sein, damit eventuell aus der Handbrause 25 tropfendes Wasser in die Wanne geleitet wird. Sämtliche beschriebenen Teile können im Werk an der Wanne montiert werden, so daß am Bau nur noch Kaltwasser, Warmwasser und Abwasser anzuschließen sind.The actuating handle 22 acts on the adjusting shaft 11 via a universal joint (not shown). The commercially available mixing thermostat mounted under the actuating handle 23 is to be connected in a known manner with its inputs to a cold water pipe or a hot water pipe. The tub outlet of the mixing thermostat is to the water inlet valve 6, its shower outlet to the shower valve actuated by the handle 24. The hand shower 25 can thus be used at any time and independently of the automatic water level. The outer edge of the raised tub rim 15 can be designed as a bead so that any water dripping from the hand shower 25 is directed into the tub. All of the parts described can be mounted on the tub in the factory, so that only cold water, hot water and waste water need be connected to the building.

Für ein zweites Ausführungsbeispiel zeigt Fig. 4 schematisch dargestellt und von der Seite gesehen einen Längsschnitt durch die Mitte des Kopfendes einer Badewanne 27 mit einer daran montierten Sanitärgarnitur nach der Erfindung. Fig. 5 zeigt die gleiche Wanne vom Kopfende her gesehen. In beiden Figuren sind die gleichen Bezeichnungen verwendet. Als Wasserablaufventil ist ein handelsüblicher Ablaufstöpsel 28 am Kopfende im Gesäßbereich des Wannenbodens in einer Versenkung 29 angeordnet, die so ausgebildet ist, daß der Ablaufstöpsel 28 im geöffneten Zustand im Gesäßbereich nicht stört. Zum Kanal hin schließt sich ein handelsüblicher Sifon 30 als Geruchsverschluß an. Der Wasserzufluß 31 am Wannenboden ist als U-förmige Lochreihe 31 um den Ablaufstöpsel 28 herum angeordnet und liegt um einige Millimeter höher als dieser. Die Zuflußlöcher 31 sind durch Schläuche 32 mit einem Zuflußverteiler 33 verbunden, in den eine Wasserzuflußleitung 34, eine Wasserstandsmeßleitung 35 und eine vom Gebläse 36 kommende Gebläseluftleitung 37 einmünden. Die Gebläseluftleitung 37 ist als Schleife bis über den tiefsten Punkt des Randes der Badewanne 27 gezogen. In die Wasserzuflußleitung 34 ist ein Rückflußverhinderer 38 eingesetzt. Oberhalb des höchstmöglichen Wasserstandes (tiefster Punkt des Wannenrandes) ist die Wasserzuflußleitung durch den freien Auslauf unterbrochen, der aus einer Auslaufdüse 39, einem Zuflußtrichter 40 und einer mindestens 20 mm betragenden Luftstrecke 41 besteht. Diese Teile sind so geschaltet, daß der aus der Auslaufdüse 39 frei austretende Wasserstrahl bei seinem Eintritt in den Zuflußtrichter 40 nach Art einer Wasserstrahlpumpe Luft mitreißt, so daß am Wannenboden ein Wasser-Luft-Gemisch zufließt. Das ganze Wasserzuflußsystem entleert sich beim Ablassen der Wanne dank der Luftstrecke 41 vollständig, da die Zuflußlocher 31 den tiefsten Punkt des Systems bilden und etwas höher als der Ablaufstöpsel 28 liegen. Der Zuflußtrichter 40 ist innerhalb des Überlaufanschlusses 42 so angeordnet, daß aus der Luftstrecke 41 eventuell austretendes Spritzwasser aufgefangen und durch ein Überlaufrohr 43 zum Sifon 30 abgeleitet wird. Die Überlauföffnung der Wanne ist als Reihe von horizontalen Schlitzen 44 ausgebildet.For a second exemplary embodiment, FIG. 4 shows schematically and seen from the side a longitudinal section through the center of the head end of a bathtub 27 with a sanitary fitting according to the invention mounted thereon. Fig. 5 shows the same tub seen from the head end. The same designations are used in both figures. As a water drainage valve, a commercially available drain plug 28 is arranged at the head end in the buttocks area of the tub floor in a recess 29, which is designed such that the drain plug 28 does not interfere in the buttocks area when open. Towards the canal is followed by a commercially available siphon 30 as an odor trap. The water inflow 31 on the tub floor is arranged as a U-shaped row of holes 31 around the drain plug 28 and is a few millimeters higher than this. The inflow holes 31 are connected by hoses 32 to an inflow distributor 33, into which a water inflow line 34, a water level measuring line 35 and a blower air line 37 coming from the blower 36 open. The blower air line 37 is drawn as a loop over the lowest point of the edge of the bathtub 27. In the water supply line 34, a backflow preventer 38 is inserted. Above the highest possible water level (lowest point of the tub edge), the water inflow line is interrupted by the free outlet, which consists of an outlet nozzle 39, an inflow funnel 40 and an air gap 41 of at least 20 mm. These parts are switched so that the water jet which emerges freely from the outlet nozzle 39 entrains air when it enters the inflow funnel 40 in the manner of a water jet pump, so that a water-air mixture flows in at the tub floor. The entire water supply system empties completely when the tub is drained thanks to the air gap 41, since the inflow holes 31 form the lowest point of the system and are somewhat higher than the drain plug 28. The inflow funnel 40 is arranged within the overflow connection 42 in such a way that any water which may escape from the air gap 41 is collected and discharged through an overflow pipe 43 to the siphon 30. The overflow opening of the trough is designed as a row of horizontal slots 44.

Der Ablaufstöpsel 28 wird in bekannter Weise mit einem Bowdenzug 45 betätigt. Eine Wasserstandsmeßleitung 35 und der Bowdenzug 45 sind zu einer Wasserstandsautomatik 46 geführt, die mit einem Betätigungsgriff 47, der einen Sperrknopf 48 trägt, eingestellt wird. In den Betätigungsgriff 47 kann zusätzlich auf der Oberseite für das Gebläse 36 ein Schalter oder, wenn der Betätigungsgriff 47 groß genug ausgeführt wird, eine einstellbare Zeitschaltuhr eingebaut werden. Außerdem ist eine von einem Mischthermostaten 49 kommende Mischwasserleitung 50 sowie die Auslaufdüse 39 an die Wasserstandsautomatik 46 angeschlossen. Der Mischthermostat 49 wird mit seinen Zuleitungen 51 für Kaltwasser und 52 für Warmwasser an das Wassernetz des Hauses angeschlossen. Dies sind die einzigen Arbeiten, die der Installateur außer dem Anschluß des Sifons 30 an den Abwasserkanal ausführe muß. Ferner ist eine Handbrause 53 mit Brauseventil 54 vorgesehen, die unabhängig von der Wasserstandsautomatik 46 betätigt werden kann.The drain plug 28 is operated in a known manner with a Bowden cable 45. A water level measuring line 35 and the Bowden cable 45 are guided to an automatic water level 46, which is set with an actuating handle 47 which carries a locking button 48. A switch or, if the control handle 47 is made large enough, an adjustable switch can additionally be placed on the top side for the fan 36 in the control handle 47 Time switch can be installed. In addition, a mixed water line 50 coming from a mixing thermostat 49 and the outlet nozzle 39 are connected to the automatic water level 46. The mixing thermostat 49 is connected with its supply lines 51 for cold water and 52 for hot water to the water network of the house. These are the only work that the installer has to do other than connecting siphon 30 to the sewer. Furthermore, a hand shower 53 with shower valve 54 is provided, which can be operated independently of the automatic water level 46.

Alle Aggregate sind am Kopfende der Badewanne 27 unter dem hochgezogenen Teil 55 des Badewannenrandes untergebracht.All units are housed at the head end of the bathtub 27 under the raised part 55 of the bathtub edge.

Die Wasserstandsmeßleitung 35, die einen sehr kleinen Querschnitt aufweist, ist über eine Verdickung 56 an den Zuflußverteiler 33 angeschlossen. Die Verdickung 56 weist ein Innenvolumen auf, das etwa demjenigen des in der Wasserstandsautomatik 46 enthaltenen, wasserdicht verschlossenen Schaltmembrangefäßes entspricht. Dadurch wird erreicht, daß beim Schalten der Wasserspiegel innerhalb der Verdickung 56 sich nur um geringfügige Beträge bewegt, so daß durch die darüber in der Wasserstandsmeßleitung 35 stehende Luftsäule der Wasserdruck in der Wanne 27 unverfälscht auf das Schaltmembrangefäß übertragen wird.The water level measuring line 35, which has a very small cross section, is connected to the inflow distributor 33 via a thickening 56. The thickening 56 has an internal volume which corresponds approximately to that of the water-tightly closed switching membrane vessel contained in the automatic water level 46. It is thereby achieved that when switching the water level within the thickening 56 only moves by small amounts, so that the air column standing above it in the water level measuring line 35 transfers the water pressure in the trough 27 to the switching diaphragm vessel in an unadulterated manner.

Eine konstruktive Ausführung der Wasserstandsautomatik 46 mit dem faltenbalgartig ausgebildeten Schaltmembrangefäß 57 in den Figuren 6 und 7 dargestellt, wobei Fig. 6 den Zustand mit geöffnetem Ablaufstöpsel 28 und geschlossenem Membran-Servoventil 58 zeigt. In den Figuren 6 und 7 sind, soweit es sich um gleiche Teile handelt, die gleichen Bezeichnungen verwendet wie in den Figuren 4 und 5.A constructive embodiment of the automatic water level 46 with the bellows-shaped switching diaphragm vessel 57 is shown in FIGS. 6 and 7, FIG. 6 showing the state with the drain plug 28 open and the diaphragm servo valve 58 closed. To the extent that the parts are the same, the same designations are used in FIGS. 6 and 7 as in FIGS. 4 and 5.

Die Wasserstandsautomatik 46 wird mit dem den Sperrknopf 48 enthaltenden Betätigungsgriff 47 eingestellt, der auf einer Welle 59 befestigt ist, die in einem Träger 60 gelagert ist, an dem sämtliche Teile der Wasserstandsautomatik 46 montiert sind. Der Träger 60 ist mit dem hochgezogenen Teil 55 des Badewannenrandes verschraubt. Der Betätigungsgriff 47 überdeckt die Schrauben. Ein Kurvenrad 61 sitzt auf der gleichen Welle 59 wie der Betätigungsgriff 47 und steuert sämtliche Funktionen der Wasserstandsautomatik 46. Über eine Doppelkurve 61a, einen Bowdenzughebel 62 und den Bowdenzug 45 wird der Ablaufstöpsel 28 betätigt. Über eine Kurve 61b und einen Stift 63 wird die auf das Schaltmembrangefäß 57 einwirkende, den gewünschten Wasserstand bestimmende Feder 64 eingestellt. Die Kurve 61c und ein Sperrhebel 64 halten über einen Winkelarm 65 in der in Fig. 6 gezeichneten Stellung das Schaltmembrangefäß 57 im gedehnten Zustand fest und bewirken so, daß das Membran-Servoventil 58 (Wasserzuflußventil) - unabhängig vom Wasserstand - gesperrt ist, wenn der Stöpsel 28 (Wasserablaufventil) geöffnet ist. Kurve 61b und Feder 64 sind so ausgelegt und aufeinander abgestimmt, daß diejenige Stellung des Betätigungsgriffes 47, in welcher der Stift 66 des Sperrknopfes 48 an einer Nase 67 des Trägers 60 ansteht, dem Wasserstand "voll" (ca. 11 cm unter Wannenrand, ca. 4 cm unter Schlitzreihe 44) in der Badewanne entspricht. Wird der gefederte Sperrknopf 48 gedrückt und dann der Betätigungsgriff 47 über die Nase 67 hinaus weitergedreht, so wird über den Stift 63 und die Feder 4 das Schaltmembrangefäß 57 zusammengedrückt und damit das Membran-Servoventil 58 - entgegen der Sperre durch die Wasserstandsautomatik - von Hand geöffnet. Zu diesem Zweck kann die Kurve 61b in diesem Drehwinkelbereich entsprechend steiler gestaltet sein.The automatic water level 46 is set with the actuating handle 47 containing the locking button 48, which is fastened on a shaft 59 which is mounted in a carrier 60, on which all parts of the automatic water level 46 are mounted. The carrier 60 is screwed to the raised part 55 of the edge of the bathtub. The operating handle 47 covers the screws. A cam wheel 61 sits on the same shaft 59 as the actuating handle 47 and controls all functions of the automatic water level 46. The drain plug 28 is actuated via a double cam 61a, a Bowden cable lever 62 and the Bowden cable 45. The spring 64, which acts on the switching diaphragm vessel 57 and determines the desired water level, is set via a curve 61b and a pin 63. The curve 61c and a locking lever 64 hold the switching diaphragm vessel 57 in the stretched state via an angle arm 65 in the position shown in FIG. 6, and thus cause the diaphragm servo valve 58 (water inflow valve) - regardless of the water level - to be locked when the Plug 28 (water drain valve) is open. Curve 61b and spring 64 are designed and matched to one another so that the position of the actuating handle 47, in which the pin 66 of the locking button 48 abuts a nose 67 of the support 60, the water level is "full" (approx. 11 cm below the tub rim, approx 4 cm below row of slots 44) in the bathtub. If the spring-loaded locking button 48 is pressed and then the actuating handle 47 is turned further beyond the nose 67, the switching diaphragm vessel 57 is pressed together via the pin 63 and the spring 4 and the diaphragm servo valve 58 is thus opened by hand - contrary to the lock by the automatic water level . For this purpose, the curve 61b can be designed correspondingly steeper in this rotation angle range.

Der Wasserdruck in der Badewanne wird durch die Wasserstandsmeßleitung 35 auf das Schaltmembrangefäß 57 übertragen. Die Unterseite des Schaltmembrangefäßes 57 ist, ebenso wie das Membran-Servoventil 58, fest am Träger 60 montiert. Ein auf der oberen, beweglichen Seite des Schaltmembrangefäßes 57 montiertes Joch 68 greift nach unten durch und trägt dort einen Permanent-Ringmagneten 69, der einen aus unmagnetischem Material bestehenden Schaft 70 des Membran-Servoventils 58 berührungslos umschließt. Wird der Permanent-Ringmagnet 69 nach unten bewegt, so hebt er einen (nicht dargestellten) Weicheisenstift nach oben, der im Inneren des Schaftes 70 beweglich geführt ist und als Ventilkegel wirkt. Damit wird das Membran-Servoventil 58 geöffnet und gibt den vom Thermostat 49 aus der Mischwasserleitung 50 kommenden Mischwasserstrom zur Auslaufdüse 39 frei. Wird durch steigenden Wasserstand in der Badewanne 27 der Permanent-Ringmagnet 69 vom Schaltmembrangefäß 57 bei Kraftgleichheit mit der Feder 64 angehoben, so fällt bei Erreichen einer bestimmten Höhe der (nicht dargestellte) Weicheisenstift wieder herunter und sperrt das Membran-Servoventil 58 schlagartig.The water pressure in the bathtub is transmitted to the switching diaphragm vessel 57 through the water level measuring line 35. The underside of the switching diaphragm vessel 57, like the diaphragm servo valve 58, is fixedly mounted on the carrier 60. A yoke 68 mounted on the upper, movable side of the switching diaphragm vessel 57 extends downward and there carries a permanent ring magnet 69, which is made of non-magnetic Material existing shaft 70 of the membrane servo valve 58 encloses without contact. If the permanent ring magnet 69 is moved downward, it lifts a soft iron pin (not shown) which is movably guided inside the shaft 70 and acts as a valve cone. This opens the membrane servo valve 58 and releases the mixed water flow coming from the thermostat 49 from the mixed water line 50 to the outlet nozzle 39. If the permanent ring magnet 69 is raised by the switching diaphragm vessel 57 when the water level in the bathtub 27 rises and the force is equal to that of the spring 64, the soft iron pin (not shown) falls down again when a certain height is reached and the diaphragm servo valve 58 locks suddenly.

Die vorstehende Beschreibung und die Zeichnungen beschränken sich nur auf die Angabe von Merkmalen, die für die beispielsweise Verkörperung der Erfindung wesentlich sind. Soweit daher Merkmale in der Beschreibung und in den Zeichnungen offenbart und in den Ansprüchen nicht genannt sind, dienen sie erforderlichenfalls auch zur Bestimmung des Gegenstandes der Erfindung.The above description and the drawings are limited only to the specification of features which are essential for the embodiment of the invention, for example. To the extent that features are disclosed in the description and in the drawings and are not mentioned in the claims, they also serve, if necessary, to determine the subject matter of the invention.

Claims (20)

  1. Bathtub (1; 27) with sanitary fixtures, of which the water inflow at the bottom of the tub, is preferably disposed in the vicinity of the water outlet or is combined with the latter, with an automatic water level unit (5, 6, 8-11, 17, 26; 46) which is located adjacent the tub (1; 27), preferably disposed under the tub edge, and is activated by the water level in the tub (1; 27), and which automatically closes the water supply valve (6; 58) when a given, preset water level is reached, characterised by a device for preventing dirty water from flowing back into the fresh water pipe disposed above the highest possible water level (highest point of the tub edge).
  2. Bathtub according to claim 1, characterised in that the device for preventing the back-flow of dirty water into the fresh water pipe is in the form of a pipe interruptor with continually open ventilation apertures, disposed at least 150 mm above the highest possible water level (highest point of the tub edge), and which, in order to save height, is preferably installed horizontally, such that a water - air mixture flows at the bottom of the tub.
  3. Bathtub according to claim 1, characterised in that the device for preventing dirty water from flowing back into the fresh water pipe is in the form of a free outlet (39) with a safety clearance of at least 20 mm between the lower edge of the outflow and the highest possible water level (highest point of the bathtub), which outlet is disposed in such a manner above the water inflow pipe (34) that when the freely emerging stream of water enters the water inflow pipe (34) it carries with it air in the form of a water jet blast, such that a water - air mixture flows at the bottom of the tub.
  4. Bathtub according to any one of the preceding claims, characterised in that part (15; 55) of the tub edge is raised, preferably in the vicinity of the head end, such that the pipe interruptor or the free outlet, if necessary with further units (mixer system, mixer thermostat, instantaneous water heater, bubbling air blower, whirlpool pump, etc) can be accommodated thereunder, wherein also the control devices (22, 23, 24; 47), particularly those for the outlet valve (7; 28) and the automatic water level unit (5, 6, 8-11, 17, 26; 46), but also for example the control device (23) for a mixing thermostat, a spray valve and a tub edge slip-in type shower (25; 53, 54), are disposed on the raised part (15; 55) of the tub edge; and in that the overflow connection (42) disposed on the outer side of the tub under the raised part (15; 55) of the tub edge is formed such that it collects any water spraying out of the pipe interruptor ventilation openings or out of the free outlet section (41).
  5. Bathtub according to claim 4, characterised in that the overflow outlet is disposed at the head end and is in the form of a series of horizontal slits (21;44), disposed at the level of the top edge of the otherwise conventional overflow hole, ie approximately 4 cm below the highest point of the tub edge; and in that the maximum "full" setting of the automatic water level unit (5, 6, 8-11, 26; 46) corresponds to a water level which is determined by the average volume of a human body (approximately 60 litres corresponding to approximately 7 cm) below the level of the series of slits (21; 44), ie approximately 11 cm below the deepest point of the tub edge.
  6. Bathtub according to any one of the preceding claims, characterised by a preferably electrically operated air blower (36), of which the flow is also conveyed into the water inflow pipe (32), wherein a one way valve (38) is installed in the latter, between the connection point of the air, pipe and the pipe interruptor or the free outlet.
  7. Bathtub according to any one of the preceding claims, characterised in that after draining of the tub (1; 27) with the water drainage valve (7; 28) open, the fresh water supply and / or the air supply are switched on automatically for a short time.
  8. Bathtub according to any one of the preceding claims, characterised in that at least one water inflow / water outlet combination combined in a conventional manner with the parts for the overflow, is disposed at the head end of the bath tub in the sitting area, and is preferably covered with a drainage filter (4) in the bottom of the tub.
  9. Bathtub according to claim 8, characterised in that when a commercially available plug (28) is used in the bottom of the tub as a valve for the drainage of the water, the water inflow is disposed as a circular or U-shaped series of holes (31) about the outlet plug (28).
  10. Bathtub according to any one of the preceding claims, wherein the water outlet valve (7; 28) is functionally combined with the automatic water level unit (5, 6, 8-11, 17, 26; 46) in such a way that the latter closes off the water inflow valve (6; 58) irrespective of the water level, when the water outlet valve is opened (7; 28), characterised in that the water inflow valve (6; 58) can be opened manually, against the closing-off by the automatic water level unit (5, 6, 8-11, 17, 26; 46).
  11. Bathtub according to claim 10, characterised by a combined operating handle (22; 47), which, when turned (eg to the left), first of all closes off the water outlet valve (7; 28), then when turned further, adjusts the required water level to a scale, wherein, either by pressing in of the operating handle (22; 47) against spring resistance, the water inflow valve (6; 58) is opened irrespective of the rotational position of the operating handle (22; 47), for as long as the handle is activated manually; or by the further rotation of the operating handle (22; 47), against the force of a return spring, beyond a pressure point corresponding to a "full" water level on the scale, the water inflow valve (6; 58) is opened, irrespective of the water level, for as long as the handle is activated manually; or the operating handle (47) has a laterally disposed locking button (48), which, when it is pressed in, and when the operating handle (47) is turned further, beyond the "full" position on the scale, the water inflow valve (58) is opened irrespective of the water level, and by the turning back of the operating handle (completely towards the right), the water inflow valve (6; 58) is closed off again and the water drainage valve (7; 28) is opened.
  12. Bathtub according to any one of claims 1 to 11, characterised in that the pipes for the water inflow and water drainage are guided from the water inflow / water drainage combination on the bottom of the tub, to a container (5) disposed adjacent the tub (1) preferably under the edge of the tub, which container accommodates the valve (6) for the water inflow and the valve (7) for the water drainage.
  13. Bathtub according to claim 12, characterised in that the container (5) extends along the entire height of the tub, such that its water level communicates with that of the tub; and in that it accommodates a lifting unit (8) extending over the entire height of the tub, wherein the lifting unit (8) activates the water inflow valve (6) which is preferably in the form of a membrane - servo valve, and of which the cut-off point is determined by the lifting force of the lifting unit (8), and by an adjustable spring force (9) counteracting this force.
  14. Bathtub according to claim 12, characterised in that the container (5) extends over the entire height of the tub, such that the water level thereof communicates with that in the tub; and in that it comprises on the water level, a floating magnetic body which switches reed relays disposed along the outer side of the container, which reed relays are selected by the operating handle, and which, when the selected level is reached, switch off the membraneservo valve, fitted with an electrical switching coil, in the water inflow pipe.
  15. Bathtub according to any one of claims 12 to 14, characterised by two traps (12,13) disposed one behind the other in the water outlet pipe (3), of which one is disposed in a known manner under the base of the bathtub, and the second is disposed under the container (5); and in that the water inflow pipe (2) discharges into the water outlet pipe (3) upstream of the first trap (12), the overflow pipe (14) below the tub edge being positioned downstream of the outlet valve (7) and upstream of the second trap (13).
  16. Bathtub according to any of claims 1 to 11, characterised by an impermeable sealed switching membrane vessel (57), which is acted upon by the water pressure in the tub, and of which the interior is connected permanently via an aperture (31) in the bottom of the tub, preferably via the water inflow pipe (34), to the interior of the tub, and of which the switching membrane force acts on the water inflow valve (58) preferably in the form of a membrane - servo valve, and closes the valve as soon as the force exceeds the counterforce of a preset spring (64) determining the required water level.
  17. Bathtub according to either of claims 13 or 16, characterised in that the water inflow valve (58) is activated in a contact-free manner by an external, preferably annular permanent magnet (69), which is moved by the switching membrane and surrounds a shaft (70) consisting of non-magnetic material, in the interior of which a soft iron pin acting as a valve cone is movably guided.
  18. Bathtub according to claim 17, characterised in that in order to enlarge the available switching path, the switching membrane is undulating, or the wall of the switching membrane vessel is in the form of bellows.
  19. Bathtub according to any one of the preceding claims, characterised in that water is supplied at a constant, preset temperature to the water inflow valve (6, 58) as a result of the upstream connection of a mixer tap with a one-way valve, a mixing thermostat (49) or a temperature-controlled electrical instantaneous water heater independent of the flow rate.
  20. Bathtub according to any one of the preceding claims, in which the water inflow / water drainage combination is disposed at the head end in the sitting area of the bottom of the tub, characterised in that the sitting area is simultaneously formed as the standing area for the shower, and the bottom of the tub at the foot end is somewhat raised and acts as an aid to getting in and as a sitting surface.
EP90101365A 1989-03-04 1990-01-24 Bathtub with sanitary fixtures Expired - Lifetime EP0386426B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90101365T ATE82346T1 (en) 1989-03-04 1990-01-24 BATHTUB WITH SANITARY SET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907038A DE3907038A1 (en) 1989-03-04 1989-03-04 SANITARY SET FOR BATHTUBS
DE3907038 1989-03-04

Publications (3)

Publication Number Publication Date
EP0386426A2 EP0386426A2 (en) 1990-09-12
EP0386426A3 EP0386426A3 (en) 1990-11-22
EP0386426B1 true EP0386426B1 (en) 1992-11-11

Family

ID=6375571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101365A Expired - Lifetime EP0386426B1 (en) 1989-03-04 1990-01-24 Bathtub with sanitary fixtures

Country Status (4)

Country Link
EP (1) EP0386426B1 (en)
AT (1) ATE82346T1 (en)
DE (2) DE3907038A1 (en)
ES (1) ES2036061T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509138A (en) * 2015-09-26 2016-04-20 郑景文 Use method for smart air energy bathtub heat dissipater
CN105509134A (en) * 2015-09-26 2016-04-20 郑景文 Use method for energy-saving bathtub

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288330A (en) * 1994-04-15 1995-10-18 David Cox Overflow control system for bath, basin etc.
DE19604760C2 (en) * 1995-05-02 1997-10-02 Kurt Michael Desch Combined bathtub inlet and overflow set
ES2258013T3 (en) * 1999-09-30 2006-08-16 Krones Ag CAN DRINKS WITH A PROTECTIVE COVER AS WELL AS A PROCEDURE AND DEVICE FOR PLACING A PROTECTIVE COVER ON BEVERAGE CAN.
DE20101515U1 (en) * 2001-01-30 2001-06-13 Scherer Norbert Water inlet and tub drain
CN103953092B (en) * 2014-05-15 2016-08-24 重庆尚业科技有限公司 Buried storage tank is bathed in energy-conservation lavatory
CN105402802B (en) * 2015-09-26 2018-04-03 郑景文 Energy-saving heat radiator bathtub
CN105387619B (en) * 2015-09-26 2018-03-27 郑景文 Intelligent air energy bathtub radiator
CN105387618B (en) * 2015-09-26 2018-03-27 郑景文 Air energy bathtub radiator
CN105496265B (en) * 2015-09-26 2017-12-29 郑景文 The application method of intelligent power saving radiator bathtub

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Publication number Priority date Publication date Assignee Title
GB320752A (en) * 1928-10-08 1929-10-24 Robert Amy Overflow preventing means for baths and the like
DE589121C (en) * 1932-04-16 1933-12-02 Otto Eduard Eichmann Safety device on bathtubs and other liquid containers to prevent overflow
FR824881A (en) * 1937-02-17 1938-02-17 Automatic water adjustment device for bathtubs
DE2617643A1 (en) * 1976-04-22 1978-03-09 Klaus Kuehnel Plug hole filling system for baths - has inner and outer pot with separate supply and drainage holes for filling and emptying
DE2832804C3 (en) * 1978-07-26 1981-12-10 Martin van Nijmegen Gemert Control device for the water supply of a bathtub
FR2456174A3 (en) * 1979-05-11 1980-12-05 Metulesco Andrei Silent filling of bath with water - uses base inlet which is aligned and dimensioned to effect suppression of incoming jet
FR2526826A1 (en) * 1982-05-13 1983-11-18 Hurel Serge DEVICE FOR FILLING, DRAINING AND DISPOSING BY THE CONTAINER BASE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509138A (en) * 2015-09-26 2016-04-20 郑景文 Use method for smart air energy bathtub heat dissipater
CN105509134A (en) * 2015-09-26 2016-04-20 郑景文 Use method for energy-saving bathtub
CN105509138B (en) * 2015-09-26 2018-06-19 佛山市南海贺泺卫浴有限公司 The application method of intelligent air energy bathtub radiator
CN105509134B (en) * 2015-09-26 2018-07-10 郑景文 The application method of energy-saving bathtub

Also Published As

Publication number Publication date
ES2036061T3 (en) 1993-05-01
DE59000440D1 (en) 1992-12-17
DE3907038A1 (en) 1990-09-13
ATE82346T1 (en) 1992-11-15
DE3907038C2 (en) 1991-05-08
EP0386426A2 (en) 1990-09-12
EP0386426A3 (en) 1990-11-22

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