EP2322729B1 - Outlet and overflow fitting, in particular for bath tubs - Google Patents

Outlet and overflow fitting, in particular for bath tubs Download PDF

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Publication number
EP2322729B1
EP2322729B1 EP10189068.9A EP10189068A EP2322729B1 EP 2322729 B1 EP2322729 B1 EP 2322729B1 EP 10189068 A EP10189068 A EP 10189068A EP 2322729 B1 EP2322729 B1 EP 2322729B1
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EP
European Patent Office
Prior art keywords
drain
valve body
overflow fitting
fitting according
electric motor
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.)
Active
Application number
EP10189068.9A
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German (de)
French (fr)
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EP2322729A2 (en
EP2322729A3 (en
Inventor
Frank Hennes
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Viega GmbH and Co KG
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Viega GmbH and Co KG
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Publication of EP2322729A2 publication Critical patent/EP2322729A2/en
Publication of EP2322729A3 publication Critical patent/EP2322729A3/en
Application granted granted Critical
Publication of EP2322729B1 publication Critical patent/EP2322729B1/en
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22Outlet devices mounted in basins, baths, or sinks
    • E03C1/23Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22Outlet devices mounted in basins, baths, or sinks
    • E03C1/23Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • E03C1/2302Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms the actuation force being transmitted to the plug via rigid elements

Definitions

  • the invention relates to a waste and overflow fitting, in particular for bathtubs or sink, with a drain housing, a valve body and a rotatably mounted in the drain housing lever mechanism for actuating the valve body, wherein the lever mechanism is coupled to an electric motor, and wherein an overload protection device is provided.
  • Drain and overflow sets for bathtubs or sinks are known in various designs.
  • Conventional Abund overflow sets are provided with a Bowden cable, which can be manually operated by means of a mounted on the overflow opening of the bathtub rotary rosette or a stored on the washing basin pressure and pull knob.
  • the DE 20 2007 012 241 U1 describes according to the preamble of claim 1, an Excenterventil for closing or opening a sanitary drain set with one in a drain pipe of the sanitary drain set raised and lowered guided Verschlüssstopfen.
  • the Excenterventil is provided with an electric geared motor, which is arranged together with a control unit in a motor housing. With the geared motor an eccentric bolt is releasably connected, which is associated with a lever which is able to act on the closure pots.
  • the eccentric valve is provided with a fuse which shuts off the geared motor after a predefinable time in the event of mechanical overloading.
  • the fuse consists of an electronic fuse assigned to the control unit.
  • the present invention has for its object to provide a sanitary drain and overflow set of the type mentioned above, which offers a higher operating comfort than conventional waste and overflow sets and does not work less reliable.
  • a rotational movement can be transmitted via a shaft to a lever of the lever mechanism.
  • the lever engages the valve body and converts the rotational movement into a lifting or lowering movement of the valve body, so that the drain valve is opened or closed.
  • the waste and overflow fitting according to the invention offers the possibility of realizing a special ease of operation.
  • the drain valve of the set for example by means of a programmable Control automatically and / or electronically operated by a remote control.
  • the mechanics, in particular the lever mechanism, and the engine are protected against overload damage.
  • Cause of an overload could be a blocking of the valve body.
  • the inventive use of an arranged in the power transmission from the electric motor to the valve body overload protection device reliable operation of the motor-driven waste and overflow set is ensured.
  • the overload protection device is formed from a torsion spring, which is arranged between the output shaft of the electric motor and the lever of the lever mechanism.
  • the torsion spring ensures that only a predetermined maximum torque is transmitted to the electric motor. In the open valve position, the valve body can be pressed down without thereby rotating the output shaft of the electric motor.
  • a further advantageous embodiment of the waste and overflow fitting is that the lever mechanism has a split drive shaft, wherein a motor-side portion of the drive shaft via the torsion spring torsionally elastic with a second drive shaft portion from which the lever protrudes radially coupled ,
  • This embodiment is favorable in manufacturing technology as well as in functional terms. Because the torsion spring can be due to the division of the drive shaft relatively easy to connect with this or their sections and can also encapsulated in a the split drive shaft receiving tubular shaft bearings and thus protected.
  • the overload protection device is formed from a compression spring, which is integrated in a connected to the valve body telescopically formed valve stem.
  • This embodiment also ensures reliable overload protection for the mechanics as well as the electric motor of the waste and overflow set.
  • the compression spring is preferably installed biased. This ensures that no stroke is lost for the valve body during normal opening of the drain valve.
  • a compact and functionally reliable design of the telescopic valve stem is achieved when it is formed of an outer tube and an inner rod inserted therein, wherein the inner rod has a radial projection as a support surface for the lower end of the compression spring, while the outer tube in the interior as a stop for Having the upper end of the compression spring serving constriction.
  • the inner rod has at its upper end a threaded bore with a screw screwed therein, wherein the diameter of the screw head is greater than the diameter of the inner rod is, and where the screw head with play in the above the constriction extending portion of the outer tube is guided.
  • Fig. 1 is a waste and overflow set for bathtubs, shower trays, sinks and sinks shown.
  • Fig. 1 refers to both alternatives according to the invention.
  • the clothing has a drain housing 1 with an inlet opening 2.
  • the inlet opening 2 is surrounded by an annular groove or an annular shoulder 3 of the drain housing.
  • an annular seal 4 is inserted, by means of which the drain body 1 can be waterproof fixed to a drain opening of a tub or a basin.
  • On the inside of the tub or the basin a trough-shaped or bowl-shaped valve upper part 5 is arranged, in the bottom of a central mounting hole for receiving a screwed to the drain housing 1 hollow screw 6 is formed.
  • the drain housing 1 is provided with an integrally formed nozzle 1.1 for connecting an overflow pipe 8.
  • the connecting piece 1.1 has this in a conventional manner an external thread with a union nut 9 and a conically expanding to its end inner surface 10 as a clamping fit for a plugged onto the overflow pipe 8 sealing ring 11th
  • the drain housing 1 is further provided with a smell trap 12, to which a drain pipe bend 13 can be connected.
  • the odor trap 12 is formed from a substantially U-shaped channel 12.1, which at its inlet a latchable with the drain housing 1 cap 12.2 and at its outlet one with a Pipe elbow 12.3 latching cap 12.4, wherein the two latching connections on the one hand enable rotation of the U-shaped channel 12.1 relative to the drain body 1 and on the other hand rotate the pipe elbow 12.3 relative to the U-shaped channel 12.1 respectively about a substantially vertical axis.
  • the valve upper part 5 is associated with a valve plug 14 as a valve body.
  • the valve plug (valve body) 14 is provided with a valve stem 14.1, which is inserted into the hollow screw 6.
  • the lower end of the valve stem 14.1 is provided with a threaded bore and a screw screwed therein (compensating or adjusting screw) 15.
  • the screw 15 allows a length compensation of the valve stem 14.1 with respect to different wall thicknesses of the tub or pelvic floor.
  • the varying wall thickness is in Fig. 3 indicated by the reference X.
  • the Einstellnch, ie the adjustable length of the valve stem 14.1 including the screw 15 is in Fig. 5 denoted by the reference E.
  • a length compensation can be done by omitting the screw 15 or by screwing a longer or shorter screw 15.
  • the screw 15 with a lock nut 16 (in Fig. 5 not shown) (cf. Fig. 8 ).
  • the lower end of the valve stem 14.1 or the head of the compensating or adjusting screw 15 is assigned a rotatably mounted in the drain housing lever mechanism 17 for actuating the valve body 14.
  • the lever mechanism 17 comprises a drive shaft 17.1, with a hook-shaped lever 17.2 is positively connected and rotationally fixed.
  • the bottom of the upper valve part 5 has a plurality of openings through which liquid can flow from the trough or the basin into the drain housing 1 when the valve body 14 is raised.
  • the raised and lowered valve body 14 is shown in a raised position, although the lever 17.2 is shown in a lowered position.
  • the lever mechanism 17 is coupled to an electric motor 18.
  • the electric motor 18 is a stepper motor with a reversible direction of rotation.
  • the electric motor 18 is arranged in a liquid-tight motor housing 19.
  • the housing 19 is formed in two parts and mounted on the drain housing 1.
  • a cup-shaped part 19.1 of the motor housing connected to the end of a hollow cylindrical or tubular part 1.2 of the drain housing 1.
  • a hollow cylindrical connection piece 19.2 is formed for this purpose.
  • the cup-shaped housing part 19.1 is provided with a removable housing cover 19.2.
  • the drive shaft 17.1 of the lever mechanism is rotatably mounted.
  • the motor-side end of the drive shaft 17.1 is formed as a four-sided or polygonal head 17.3 and positively connected to the output shaft of the motor 18.
  • the motor 18 is arranged so that the rotation axis of the lever mechanism 17 and the output shaft of the motor 18 are substantially aligned with each other.
  • an overload protection device is arranged in that the connected to the valve body 14 valve stem 14.1 is telescopically formed, wherein in the valve stem, a compression spring 20 acts as a force element.
  • the valve stem 14.1 is formed of an outer tube 14.11 and an inner rod 14.12 inserted therein.
  • the inner rod 14.12 has a radial projection 14.13 as a support surface for the lower end of the compression spring 20, while the outer tube 14.11 inside a projecting shoulder or constriction 14.14 which serves as a stop for the upper end of the compression spring 20.
  • the outer tube 14.11 is fixedly connected to the plate-shaped part 14.2 of the valve body (valve plug) 14, preferably screwed.
  • the plate-shaped part 14.2 has a circumferential shoulder 14.21 or annular groove, which carries a sealing ring 14.3.
  • the outer tube 14.11 penetrates the dish-shaped part 14.2, wherein on the upper end of the tube a cover 21 is plugged or screwed.
  • a cover 21 On the underside of the cover 21 web-shaped projections 21.1 are formed, the set in the assembled state of the cover 21, the sealing ring 14.3 on the shoulder 14.21 of the valve plate 14.2 or press on the shoulder 14.21.
  • the outer tube 14.11 of the telescopic valve stem 14.1 is axially movably guided in the hollow screw 6, which connects the upper valve part 5 with the drain housing 1.
  • the inner rod 14.12 of the valve stem 14.1 is at its upper End provided with a threaded hole into which a screw 14.15 is screwed.
  • the diameter of the screw head 14.16 is greater than the diameter of the inner rod 14.12, so that the screw head 14.16 and the inwardly projecting shoulder (narrowing) 14.14 of the outer tube 14.11 form mutual stops.
  • the screw head 14.16 is guided with play in the above the constriction 14.14 extending portion of the outer tube 14.11.
  • the compression spring 20 is installed biased, so that no stroke for the valve body 14 is lost when you open the drain valve.
  • the lever 17.2 presses the inner rod 14.12 against the force of the compression spring 20 upwards, wherein the inner rod 14.12 enters the outer tube 14.11.
  • the valve body 14 can be pressed downwards, for example when a person steps on the cover 21 without the lever 17.2 having to move downwards, which would force a rotation of the drive shaft 17.1 or motor shaft. The mechanics and the motor 18 are therefore each reliably protected against overloading.
  • the overload protection device is formed here of a torsion spring 22 which is arranged between the output shaft of the electric motor 18 and the rotatable lever 17.2.
  • the lever 17.2 torsionally rigid carrying drive shaft 17.1 is divided between the motor 18 and lever 17.2, wherein the motor-side shaft portion 17.11 is torsionally connected via the torsion spring 22 with the separated shaft portion 17.12.
  • the torsion spring 22 is received together with the split drive shaft 17.1 in the hollow cylindrical part 1.2 of the drain housing 1.
  • the motor-side end of the drive shaft is in turn formed as a four-sided or polygonal head 17.3 and positively connected to the motor shaft. The motor shaft and the drive shaft are aligned.
  • the valve stem 14.1 of the plate-shaped valve body 14 is in the embodiment according to Fig. 8 formed as a one-piece sleeve or rod having at its lower end an internal thread for a balance screw (adjusting screw) 15.
  • the upper end of the rod or sleeve 14.1 penetrates the plate-shaped valve body 14.
  • the valve body 14 and the valve top 5 are as in the in the FIGS. 2 to 6 shown executed.
  • the torsion spring 22 ensures that only a predetermined torque is transmitted. Also, with the drain valve open, the valve body 14 can be pressed down, wherein the lever 17.2 at the same time dodges down and rotates the rotationally rigidly connected to him drive shaft section 17.12; however, the motor 18 does not have to yield due to the torsion spring 22. Thus, the mechanism 17 and the motor 18 are reliably protected against overload in this embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

Die Erfindung betrifft eine Ab- und Überlaufgarnitur, insbesondere für Badewannen oder Waschbecken, mit einem Ablaufgehäuse, einem Ventilkörper und einem drehbar im Ablaufgehäuse gelagerten Hebelmechanismus zur Betätigung des Ventilkörpers, wobei der Hebelmechanismus mit einem Elektromotor gekoppelt ist, und wobei eine Überlastschutzvorrichtung vorgesehen ist.The invention relates to a waste and overflow fitting, in particular for bathtubs or sink, with a drain housing, a valve body and a rotatably mounted in the drain housing lever mechanism for actuating the valve body, wherein the lever mechanism is coupled to an electric motor, and wherein an overload protection device is provided.

Ab- und Überlaufgarnituren für Badewannen oder Waschbecken sind in vielfältigen Ausführungen bekannt. Herkömmliche Abund Überlaufgarnituren sind mit einem Bowdenzug versehen, der mittels einer an der Überlauföffnung der Badewanne montierten Drehrosette bzw. einem am Waschenbecken gelagerten Druck- und Zugknopf manuell betätigt werden kann.Drain and overflow sets for bathtubs or sinks are known in various designs. Conventional Abund overflow sets are provided with a Bowden cable, which can be manually operated by means of a mounted on the overflow opening of the bathtub rotary rosette or a stored on the washing basin pressure and pull knob.

In den letzten Jahren wurde der Bedienungskomfort von sanitären Vorrichtungen insbesondere dadurch weiterentwickelt, dass Wasserzülaufarmaturen mit programmierbaren Steuerungen bzw. Fernbedienungen ausgestattet wurden. Die programmierbaren Steuerungen bzw. Fernbedienungen erlauben beispielsweise die Steuerung des Volumenstromes sowie der Temperatur des zulaufenden Wassers. Ferner wurden für Badewannen auch bereits programmierbare Steuerungen entwickelt, welche die Eingabe und Speicherung von personenspezifischen Benutzerprofilen ermöglichen.In recent years, the ease of use of sanitary devices has been further developed in particular by the fact that Wasserzülaufarmaturen have been equipped with programmable controllers or remote controls. The programmable controls or remote controls allow, for example, the control of the volume flow and the temperature of the incoming water. Furthermore, already programmable controllers have been developed for baths, which allow the entry and storage of person-specific user profiles.

Die DE 20 2007 012 241 U1 beschreibt gemäß dem Oberbegriff von Anspruch 1 ein Excenterventil zum Verschließen bzw. Öffnen einer Sanitär-Ablaufgarnitur mit einem in einem Ablaufstutzen der Sanitär-Ablaufgarnitur heb- und senkbar geführten Verschlüssstopfen. Das Excenterventil ist mit einem elektrischen Getriebemotor versehen, der zusammen mit einer Steuereinheit in einem Motorgehäuse angeordnet ist. Mit dem Getriebemotor ist ein Excenterbolzen lösbar verbunden, dem ein Hebel zugeordnet ist, der auf den Verschlussstöpfen einzuwirken vermag. Des Weiteren ist das Excenterventil mit einer Sicherung versehen, die bei einer mechanischen Überbelastung den Getriebemotor nach einer vorgebbaren Zeit abschaltet. Die Sicherung besteht dabei aus einer der Steuereinheit zugeordneten elektronischen Sicherung.The DE 20 2007 012 241 U1 describes according to the preamble of claim 1, an Excenterventil for closing or opening a sanitary drain set with one in a drain pipe of the sanitary drain set raised and lowered guided Verschlüssstopfen. The Excenterventil is provided with an electric geared motor, which is arranged together with a control unit in a motor housing. With the geared motor an eccentric bolt is releasably connected, which is associated with a lever which is able to act on the closure pots. Furthermore, the eccentric valve is provided with a fuse which shuts off the geared motor after a predefinable time in the event of mechanical overloading. The fuse consists of an electronic fuse assigned to the control unit.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine sanitäre Ab- und Überlaufgarnitur der eingangs genannten Art zu schaffen, die einen höheren Bedienkomfort als herkömmliche Ab- und Überlaufgarnituren bietet und dabei nicht weniger zuverlässig funktioniert.The present invention has for its object to provide a sanitary drain and overflow set of the type mentioned above, which offers a higher operating comfort than conventional waste and overflow sets and does not work less reliable.

Gelöst wird diese Aufgabe durch eine Ab- und Überlaufgarnitur mit den Merkmalen des Anspruchs 1.This object is achieved by a waste and overflow set with the features of claim 1.

Mittels des Elektromotors kann eine Drehbewegung über eine Welle auf einen Hebel des Hebelmechanismus übertragen werden. Der Hebel greift an dem Ventilkörper an und wandelt die Drehbewegung in eine Hub- bzw. Senkbewegung des Ventilkörpers um, so dass das Ablaufventil geöffnet oder geschlossen wird.By means of the electric motor, a rotational movement can be transmitted via a shaft to a lever of the lever mechanism. The lever engages the valve body and converts the rotational movement into a lifting or lowering movement of the valve body, so that the drain valve is opened or closed.

Durch den Elektromotor bietet die erfindungsgemäße Ab- und Überlaufgarnitur die Möglichkeit, einen besonderen Bedienungskomfort zu realisieren. So kann das Ablaufventil der Garnitur beispielsweise mittels einer programmierbaren Steuerung automatisch und/oder mittels einer Fernbedienung elektronisch betätigt werden. Die Mechanik, insbesondere der Hebelmechanismus, und auch der Motor sind dabei vor einer überlastbedingten Beschädigung geschützt. Ursache einer Überlast könnte ein Blockieren des Ventilkörpers sein. Durch den erfindungsgemäßen Einsatz einer im Kraftübertragungsweg vom Elektromotor zum Ventilkörper angeordneten Überlastschutzvorrichtung ist eine zuverlässige Funktion der motorisch angetriebenen Ab- und Überlaufgarnitur sichergestellt.By means of the electric motor, the waste and overflow fitting according to the invention offers the possibility of realizing a special ease of operation. Thus, the drain valve of the set, for example by means of a programmable Control automatically and / or electronically operated by a remote control. The mechanics, in particular the lever mechanism, and the engine are protected against overload damage. Cause of an overload could be a blocking of the valve body. The inventive use of an arranged in the power transmission from the electric motor to the valve body overload protection device reliable operation of the motor-driven waste and overflow set is ensured.

Erfindungsgemäß ist die Überlastschutzvorrichtung aus einer Torsionsfeder gebildet, die zwischen der Abtriebswelle des Elektromotors und dem Hebel des Hebelmechanismus angeordnet ist. Die Torsionsfeder stellt sicher, dass nur ein vorbestimmtes maximales Drehmoment auf den Elektromotor übertragen wird. In der geöffneten Ventilstellung kann der Ventilkörper nach unten gedrückt werden, ohne dass dadurch die Abtriebswelle des Elektromotors gedreht wird.According to the invention, the overload protection device is formed from a torsion spring, which is arranged between the output shaft of the electric motor and the lever of the lever mechanism. The torsion spring ensures that only a predetermined maximum torque is transmitted to the electric motor. In the open valve position, the valve body can be pressed down without thereby rotating the output shaft of the electric motor.

Hinsichtlich der Integration der Torsionsfeder besteht eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Ab- und Überlaufgarnitur darin, dass der Hebelmechanismus eine geteilte Antriebswelle aufweist, wobei ein motorseitiger Abschnitt der Antriebswelle über die Torsionsfeder drehelastisch mit einem zweiten Antriebswellenabschnitt, von dem der Hebel radial absteht, gekoppelt ist. Diese Ausgestaltung ist in fertigungstechnischer sowie in funktionaler Hinsicht günstig. Denn die Torsionsfeder lässt sich aufgrund der Teilung der Antriebswelle relativ einfach mit dieser bzw. deren Abschnitten verbinden und kann ferner in einem die geteilte Antriebswelle aufnehmenden rohrförmigen Wellenlager gekapselt und damit geschützt untergebracht werden.With regard to the integration of the torsion spring, a further advantageous embodiment of the waste and overflow fitting according to the invention is that the lever mechanism has a split drive shaft, wherein a motor-side portion of the drive shaft via the torsion spring torsionally elastic with a second drive shaft portion from which the lever protrudes radially coupled , This embodiment is favorable in manufacturing technology as well as in functional terms. Because the torsion spring can be due to the division of the drive shaft relatively easy to connect with this or their sections and can also encapsulated in a the split drive shaft receiving tubular shaft bearings and thus protected.

Alternativ ist die Überlastschutzvorrichtung aus einer Druckfeder gebildet, die in einem mit dem Ventilkörper verbundenen teleskopartig ausgebildeten Ventilschaft integriert ist. Auch diese Ausgestaltung stellt einen zuverlässigen Überlastschutz für die Mechanik wie auch den Elektromotor der Ab- und Überlaufgarnitur sicher. Die Druckfeder ist dabei vorzugsweise vorgespannt eingebaut. Hierdurch wird erreicht, dass beim normalen Öffnen des Ablaufventils kein Hub für den Ventilkörper verloren geht.Alternatively, the overload protection device is formed from a compression spring, which is integrated in a connected to the valve body telescopically formed valve stem. This embodiment also ensures reliable overload protection for the mechanics as well as the electric motor of the waste and overflow set. The compression spring is preferably installed biased. This ensures that no stroke is lost for the valve body during normal opening of the drain valve.

Eine kompakte und funktional zuverlässige Ausführung des teleskopartigen Ventilschaftes wird erreicht, wenn dieser aus einem Außenrohr und einer darin eingesteckten Innenstange gebildet ist, wobei die Innenstange einen radialen Vorsprung als Abstützfläche für das untere Ende der Druckfeder aufweist, während das Außenrohr im Inneren eine als Anschlag für das obere Ende der Druckfeder dienende Verengung aufweist.A compact and functionally reliable design of the telescopic valve stem is achieved when it is formed of an outer tube and an inner rod inserted therein, wherein the inner rod has a radial projection as a support surface for the lower end of the compression spring, while the outer tube in the interior as a stop for Having the upper end of the compression spring serving constriction.

Um eine relativ einfache Montage der Druckfeder bzw. des teleskopartigen Ventilschaftes zu ermöglichen, sieht eine weitere Ausgestaltung der Erfindung vor, dass die Innenstange an ihrem oberen Ende eine Gewindebohrung mit einer darin eingeschraubten Schraube aufweist, wobei der Durchmesser des Schraubenkopfes größer als der Durchmesser der Innenstange ist, und wobei der Schraubenkopf mit Spiel in dem oberhalb der Verengung verlaufenden Abschnitt des Außenrohres geführt ist.In order to enable a relatively simple assembly of the compression spring or the telescopic valve stem, provides a further embodiment of the invention that the inner rod has at its upper end a threaded bore with a screw screwed therein, wherein the diameter of the screw head is greater than the diameter of the inner rod is, and where the screw head with play in the above the constriction extending portion of the outer tube is guided.

Weitere bevorzugte und vorteilhafte Ausgestaltungen der erfindungsgemäßen Ab- und Überlaufgarnitur sind in den Unteransprüchen angegeben.Further preferred and advantageous embodiments of the waste and overflow set according to the invention are specified in the subclaims.

Nachfolgend wird die Erfindung anhand einer Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine Ab- und Überlaufgarnitur mit einem Elektromotor zur Betätigung des Ablaufventils, in perspektivischer Darstellung;
Fig. 2
eine Seitenansicht der Ab- und Überlaufgarnitur der Fig. 1, jedoch ohne Überlaufrohr und ohne Ablaufrohrbogen;
Fig. 3
eine Vertikalschnittansicht der Ab- und Überlaufgarnitur entlang der Schnittlinie A-A in Fig. 2;
Fig. 4
eine Horizontalschnittansicht der Ab- und Überlaufgarnitur entlang der Schnittlinie B-B in Fig. 3;
Fig. 5
eine vergrößerte Seitenansicht des Ventilkörpers der Ab- und Überlaufgarnitur der Fig. 1;
Fig. 6
eine Vertikalschnittansicht des Ventilkörpers der Fig. 5;
Fig. 7
eine Seitenansicht der alternativen erfindungsgemäßen Ab- und Überlaufgarnitur, ähnlich der Fig. 2;
Fig. 8
eine Vertikalschnittansicht der Ab- und Überlaufgarnitur der Fig. 7 entlang der Schnittlinie A-A in Fig. 7;
Fig. 9
eine Horizontalschnittansicht der Ab- und Überlaufgarnitur entlang der Schnittlinie B-B in Fig. 8; und
Fig. 10
eine Antriebswelle mit integrierter Torsionsfeder, in perspektivischer Darstellung.
The invention will be explained in more detail with reference to a drawing. Show it:
Fig. 1
a waste and overflow set with an electric motor for actuating the drain valve, in perspective view;
Fig. 2
a side view of the drain and overflow set the Fig. 1 , but without overflow pipe and without drainage pipe bend;
Fig. 3
a vertical sectional view of the waste and overflow set along the section line AA in Fig. 2 ;
Fig. 4
a horizontal sectional view of the waste and overflow set along the section line BB in Fig. 3 ;
Fig. 5
an enlarged side view of the valve body of the drain and overflow fitting of Fig. 1 ;
Fig. 6
a vertical sectional view of the valve body of Fig. 5 ;
Fig. 7
a side view of the alternative waste and overflow fitting according to the invention, similar to Fig. 2 ;
Fig. 8
a vertical sectional view of the drain and overflow fitting of Fig. 7 along the section line AA in Fig. 7 ;
Fig. 9
a horizontal sectional view of the waste and overflow set along the section line BB in Fig. 8 ; and
Fig. 10
a drive shaft with integrated torsion spring, in perspective view.

In Fig. 1 ist eine Ab- und Überlaufgarnitur für Badewannen, Duschwannen, Waschbecken sowie Spülbecken dargestellt. Fig. 1 bezieht sich auf beide erfindungsgemäßen Alternativen. Die Garnitur weist ein Ablaufgehäuse 1 mit einer Einlauföffnung 2 auf. Die Einlauföffnung 2 ist von einer ringförmigen Nut bzw. einem ringförmigen Absatz 3 des Ablaufgehäuses umgeben. In die Nut bzw. den Absatz 3 ist eine ringförmige Dichtung 4 eingesetzt, mittels der das Ablaufgehäuse 1 wasserdicht an einer Ablauföffnung einer Wanne bzw. eines Beckens festgelegt werden kann. Auf der Innenseite der Wanne bzw. des Beckens wird ein mulden- oder schüsselförmiges Ventiloberteil 5 angeordnet, in dessen Boden eine mittige Befestigungsbohrung zur Aufnahme einer mit dem Ablaufgehäuse 1 verschraubbaren Hohlschraube 6 ausgebildet ist.In Fig. 1 is a waste and overflow set for bathtubs, shower trays, sinks and sinks shown. Fig. 1 refers to both alternatives according to the invention. The clothing has a drain housing 1 with an inlet opening 2. The inlet opening 2 is surrounded by an annular groove or an annular shoulder 3 of the drain housing. In the groove or the paragraph 3, an annular seal 4 is inserted, by means of which the drain body 1 can be waterproof fixed to a drain opening of a tub or a basin. On the inside of the tub or the basin a trough-shaped or bowl-shaped valve upper part 5 is arranged, in the bottom of a central mounting hole for receiving a screwed to the drain housing 1 hollow screw 6 is formed.

Das Ablaufgehäuse 1 ist mit einem einstückig angeformten Stutzen 1.1 zum Anschluss eines Überlaufrohres 8 versehen. Der Anschlussstutzen 1.1 hat hierzu in an sich bekannter Weise ein Außengewinde mit einer Überwurfmutter 9 und eine sich zu seinem Ende hin konisch erweitende Innenfläche 10 als Klemmsitz für einen auf das Überlaufrohr 8 aufgesteckten Dichtungsring 11.The drain housing 1 is provided with an integrally formed nozzle 1.1 for connecting an overflow pipe 8. The connecting piece 1.1 has this in a conventional manner an external thread with a union nut 9 and a conically expanding to its end inner surface 10 as a clamping fit for a plugged onto the overflow pipe 8 sealing ring 11th

Das Ablaufgehäuse 1 ist ferner mit einem Geruchverschluss versehen 12, an den ein Ablaufrohrbogen 13 angeschlossen werden kann. Der Geruchverschluss 12 ist aus einem im Wesentlichen U-förmigen Kanal 12.1 gebildet, der an seinem Einlauf einen mit dem Ablaufgehäuse 1 verrastbaren Überwurfstutzen 12.2 und an seinem Auslauf einen mit einem Rohrwinkelstück 12.3 verrastbaren Überwurfstutzen 12.4 aufweist, wobei die beiden Rastverbindungen einerseits ein Drehen des U-Förmigen Kanals 12.1 relativ zu dem Ablaufgehäuse 1 und andererseits ein Drehen des Rohrwinkelstücks 12.3 relativ zu dem U-Förmigen Kanal 12.1 jeweils um eine im Wesentlichen vertikale Achse ermöglichen.The drain housing 1 is further provided with a smell trap 12, to which a drain pipe bend 13 can be connected. The odor trap 12 is formed from a substantially U-shaped channel 12.1, which at its inlet a latchable with the drain housing 1 cap 12.2 and at its outlet one with a Pipe elbow 12.3 latching cap 12.4, wherein the two latching connections on the one hand enable rotation of the U-shaped channel 12.1 relative to the drain body 1 and on the other hand rotate the pipe elbow 12.3 relative to the U-shaped channel 12.1 respectively about a substantially vertical axis.

Dem Ventiloberteil 5 ist ein Ventilstopfen als Ventilkörper 14 zugeordnet. Der Ventilstopfen (Ventilkörper) 14 ist mit einem Ventilschaft 14.1 versehen, der in die Hohlschraube 6 eingesteckt ist. Das untere Ende des Ventilschaftes 14.1 ist mit einer Gewindebohrung und einer darin eingedrehten Schraube (Ausgleichs- oder Verstellschraube) 15 versehen. Die Schraube 15 ermöglicht einen Längenausgleich des Ventilschaftes 14.1 in Bezug auf unterschiedliche Wandstärken des Wannen- bzw. Beckenbodens. Die variierende Wandstärke ist in Fig. 3 durch das Bezugszeichen X angedeutet. Das Einstellmaß, d.h. die verstellbare Länge des Ventilschaftes 14.1 einschließlich der Schraube 15 ist in Fig. 5 mit dem Bezugszeichen E bezeichnet. Ein Längenausgleich kann durch Weglassen der Schraube 15 oder durch Einschrauben einer längeren oder kürzeren Schraube 15 erfolgen. Zur Sicherung der eingestellten Position des Schraubenkopfes gegenüber dem tellerförmigen Ventilkörper 14 kann die Schraube 15 mit einer Kontermutter 16 (in Fig. 5 nicht dargestellt) versehen sein (vgl. Fig. 8).The valve upper part 5 is associated with a valve plug 14 as a valve body. The valve plug (valve body) 14 is provided with a valve stem 14.1, which is inserted into the hollow screw 6. The lower end of the valve stem 14.1 is provided with a threaded bore and a screw screwed therein (compensating or adjusting screw) 15. The screw 15 allows a length compensation of the valve stem 14.1 with respect to different wall thicknesses of the tub or pelvic floor. The varying wall thickness is in Fig. 3 indicated by the reference X. The Einstellmaß, ie the adjustable length of the valve stem 14.1 including the screw 15 is in Fig. 5 denoted by the reference E. A length compensation can be done by omitting the screw 15 or by screwing a longer or shorter screw 15. To secure the adjusted position of the screw head relative to the plate-shaped valve body 14, the screw 15 with a lock nut 16 (in Fig. 5 not shown) (cf. Fig. 8 ).

Dem unteren Ende des Ventilschaftes 14.1 bzw. dem Kopf der Ausgleichs- oder Verstellschraube 15 ist ein drehbar im Ablaufgehäuse gelagerter Hebelmechanismus 17 zur Betätigung des Ventilkörpers 14 zugeordnet. Der Hebelmechanismus 17 umfasst eine Antriebswelle 17.1, mit der ein hakenförmiger Hebel 17.2 formschlüssig und drehfest verbunden ist.The lower end of the valve stem 14.1 or the head of the compensating or adjusting screw 15 is assigned a rotatably mounted in the drain housing lever mechanism 17 for actuating the valve body 14. The lever mechanism 17 comprises a drive shaft 17.1, with a hook-shaped lever 17.2 is positively connected and rotationally fixed.

Neben der Befestigungsbohrung weist der Boden des Ventiloberteils 5 mehrere Durchbrüche auf, über die bei angehobenem Ventilkörper 14 Flüssigkeit aus der Wanne bzw. dem Becken in das Ablaufgehäuse 1 fließen kann. Der Übersichtlichkeit wegen ist der heb- und senkbare Ventilkörper 14 in einer angehobenen Stellung dargestellt, obwohl der Hebel 17.2 in einer abgesenkten Stellung dargestellt ist.In addition to the mounting hole, the bottom of the upper valve part 5 has a plurality of openings through which liquid can flow from the trough or the basin into the drain housing 1 when the valve body 14 is raised. For the sake of clarity, the raised and lowered valve body 14 is shown in a raised position, although the lever 17.2 is shown in a lowered position.

Der Hebelmechanismus 17 ist mit einem Elektromotor 18 gekoppelt. Bei dem Elektromotor 18 handelt es sich um einen Schrittmotor mit reversibler Drehrichtung. Der Elektromotor 18 ist in einem flüssigkeitsdichten Motorgehäuse 19 angeordnet. Das Gehäuse 19 ist zweiteilig ausgebildet und am Ablaufgehäuse 1 montiert. Bei der in den Figuren 2 bis 3 dargestellten Alternative ist ein schalenförmiger Teil 19.1 des Motorgehäuses mit dem Ende eines hohlzylinder- oder rohrförmigen Teils 1.2 des Ablaufgehäuses 1 verbunden. An der Rückseite des Gehäuseteils 19.1 ist hierzu ein hohlzylindrischer Verbindungsstutzen 19.2 angeformt. Der schalenförmige Gehäuseteil 19.1 ist mit einem demontierbaren Gehäusedeckel 19.2 versehen. In dem hohlzylinder- oder rohrförmigen Teil 1.2 des Ablaufgehäuses 1 ist die Antriebswelle 17.1 des Hebelmechanismus drehbar gelagert. Das motorseitige Ende der Antriebswelle 17.1 ist als Vier- oder Mehrkantkopf 17.3 ausgebildet und formschlüssig mit der Abtriebswelle des Motors 18 verbunden. Der Motor 18 ist so angeordnet, dass die Drehachse des Hebelmechanismus 17 und die Abtriebswelle des Motors 18 im Wesentlichen miteinander fluchten.The lever mechanism 17 is coupled to an electric motor 18. The electric motor 18 is a stepper motor with a reversible direction of rotation. The electric motor 18 is arranged in a liquid-tight motor housing 19. The housing 19 is formed in two parts and mounted on the drain housing 1. In the in the FIGS. 2 to 3 Alternative shown is a cup-shaped part 19.1 of the motor housing connected to the end of a hollow cylindrical or tubular part 1.2 of the drain housing 1. At the back of the housing part 19.1, a hollow cylindrical connection piece 19.2 is formed for this purpose. The cup-shaped housing part 19.1 is provided with a removable housing cover 19.2. In the hollow cylindrical or tubular part 1.2 of the drain housing 1, the drive shaft 17.1 of the lever mechanism is rotatably mounted. The motor-side end of the drive shaft 17.1 is formed as a four-sided or polygonal head 17.3 and positively connected to the output shaft of the motor 18. The motor 18 is arranged so that the rotation axis of the lever mechanism 17 and the output shaft of the motor 18 are substantially aligned with each other.

In dem Kraftübertragungsweg vom Motor 18 zum Ventilkörper 14 ist eine Überlastschutzvorrichtung angeordnet. Bei dem in den Figuren 2 bis 6 dargestellten Ausführungsbeispiel ist der Überlastschutz dadurch verwirklicht, dass der mit dem Ventilkörper 14 verbundene Ventilschaft 14.1 teleskopartig ausgebildet ist, wobei in dem Ventilschaft eine Druckfeder 20 als Kraftelement fungiert.In the power transmission path from the motor 18 to the valve body 14, an overload protection device is arranged. In the in the FIGS. 2 to 6 illustrated embodiment, the overload protection is realized in that the connected to the valve body 14 valve stem 14.1 is telescopically formed, wherein in the valve stem, a compression spring 20 acts as a force element.

Wie die Figuren 5 und 6 zeigen, ist der Ventilschaft 14.1 aus einem Außenrohr 14.11 und einer darin eingesteckten Innenstange 14.12 gebildet. Die Innenstange 14.12 weist einen radialen Vorsprung 14.13 als Abstützfläche für das untere Ende der Druckfeder 20 auf, während das Außenrohr 14.11 im Inneren eine vorspringende Schulter bzw. Verengung 14.14 aufweist, die als Anschlag für das obere Ende der Druckfeder 20 dient. Das Außenrohr 14.11 ist mit dem tellerförmigen Teil 14.2 des Ventilkörpers (Ventilstopfens) 14 fest verbunden, vorzugsweise verschraubt. Der tellerförmige Teil 14.2 weist eine umlaufende Schulter 14.21 bzw. Ringnut auf, die einen Dichtring 14.3 trägt. Das Außenrohr 14.11 durchdringt den tellerförmigen Teil 14.2, wobei auf das obere Rohrende eine Abdeckhaube 21 aufgesteckt oder aufgeschraubt ist. An der Unterseite der Abdeckhaube 21 sind stegförmige Vorsprünge 21.1 ausgebildet, die im montierten Zustand der Abdeckhaube 21 den Dichtring 14.3 an der Schulter 14.21 des Ventiltellers 14.2 festlegen bzw. an die Schulter 14.21 andrücken.As the FIGS. 5 and 6 show, the valve stem 14.1 is formed of an outer tube 14.11 and an inner rod 14.12 inserted therein. The inner rod 14.12 has a radial projection 14.13 as a support surface for the lower end of the compression spring 20, while the outer tube 14.11 inside a projecting shoulder or constriction 14.14 which serves as a stop for the upper end of the compression spring 20. The outer tube 14.11 is fixedly connected to the plate-shaped part 14.2 of the valve body (valve plug) 14, preferably screwed. The plate-shaped part 14.2 has a circumferential shoulder 14.21 or annular groove, which carries a sealing ring 14.3. The outer tube 14.11 penetrates the dish-shaped part 14.2, wherein on the upper end of the tube a cover 21 is plugged or screwed. On the underside of the cover 21 web-shaped projections 21.1 are formed, the set in the assembled state of the cover 21, the sealing ring 14.3 on the shoulder 14.21 of the valve plate 14.2 or press on the shoulder 14.21.

Das Außenrohr 14.11 des teleskopartigen Ventilschaftes 14.1 ist in der Hohlschraube 6, die das Ventiloberteil 5 mit dem Ablaufgehäuse 1 verbindet, axial beweglich geführt. Die Innenstange 14.12 des Ventilschaftes 14.1 ist an ihrem oberen Ende mit einer Gewindebohrung versehen, in die eine Schraube 14.15 eingeschraubt ist.The outer tube 14.11 of the telescopic valve stem 14.1 is axially movably guided in the hollow screw 6, which connects the upper valve part 5 with the drain housing 1. The inner rod 14.12 of the valve stem 14.1 is at its upper End provided with a threaded hole into which a screw 14.15 is screwed.

Der Durchmesser des Schraubenkopfes 14.16 ist dabei größer als der Durchmesser der Innenstange 14.12, so dass der Schraubenkopf 14.16 und die einwärts vorspringende Schulter (Verengung) 14.14 des Außenrohres 14.11 gegenseitige Anschläge bilden. Der Schraubenkopf 14.16 ist dabei mit Spiel in dem oberhalb der Verengung 14.14 verlaufenden Abschnitt des Außenrohres 14.11 geführt.The diameter of the screw head 14.16 is greater than the diameter of the inner rod 14.12, so that the screw head 14.16 and the inwardly projecting shoulder (narrowing) 14.14 of the outer tube 14.11 form mutual stops. The screw head 14.16 is guided with play in the above the constriction 14.14 extending portion of the outer tube 14.11.

Die Druckfeder 20 ist vorgespannt eingebaut, so dass beim Öffnen des Ablaufventils kein Hub für den Ventilkörper 14 verloren geht.The compression spring 20 is installed biased, so that no stroke for the valve body 14 is lost when you open the drain valve.

Wird der Elektromotor 18 angesteuert, um das Ablaufventil durch Drehen des Hebelmechanismus 17 zu öffnen, und ist dabei der Ventilkörper 14 blockiert, beispielsweise weil eine badende Person auf dem Ventilkörper 14 bzw. der Abdeckhaube 21 sitzt, so drückt der Hebel 17.2 die Innenstange 14.12 gegen die Kraft der Druckfeder 20 nach oben, wobei die Innenstange 14.12 in das Außenrohr 14.11 einfährt. Ebenso kann bei geöffnetem Ablaufventil der Ventilkörper 14 nach unten gedrückt werden, beispielsweise wenn eine Person auf die Abdeckhaube 21 tritt, ohne dass dadurch der Hebel 17.2 nach unten ausweichen muss, was eine Drehung der Antriebswelle 17.1 bzw. Motorwelle erzwingen würde. Die Mechanik und der Motor 18 werden somit jeweils zuverlässig vor einer Überlastung geschützt.If the electric motor 18 is activated in order to open the drain valve by turning the lever mechanism 17, and if the valve body 14 is blocked, for example because a person bathing sits on the valve body 14 or the cover 21, the lever 17.2 presses the inner rod 14.12 against the force of the compression spring 20 upwards, wherein the inner rod 14.12 enters the outer tube 14.11. Likewise, when the drain valve is open, the valve body 14 can be pressed downwards, for example when a person steps on the cover 21 without the lever 17.2 having to move downwards, which would force a rotation of the drive shaft 17.1 or motor shaft. The mechanics and the motor 18 are therefore each reliably protected against overloading.

In den Figuren 7 bis 10 ist die erfindungsgemäße Ab- und Überlaufgarnitur dargestellt, wobei die Überlastschutzvorrichtung hier aus einer Torsionsfeder 22 gebildet ist, die zwischen der Abtriebswelle des Elektromotors 18 und dem drehbaren Hebel 17.2 angeordnet ist.In the FIGS. 7 to 10 the waste and overflow set according to the invention is shown, wherein the overload protection device is formed here of a torsion spring 22 which is arranged between the output shaft of the electric motor 18 and the rotatable lever 17.2.

Die den Hebel 17.2 drehstarr tragende Antriebswelle 17.1 ist zwischen Motor 18 und Hebel 17.2 geteilt, wobei der motorseitige Wellenabschnitt 17.11 über die Torsionsfeder 22 mit dem abgetrennten Wellenabschnitt 17.12 drehelastisch verbunden ist. Die Torsionsfeder 22 ist dabei zusammen mit der geteilten Antriebswelle 17.1 in dem hohlzylindrischen Teil 1.2 des Ablaufgehäuses 1 aufgenommen. Das motorseitige Ende der Antriebswelle ist wiederum als Vier- oder Mehrkantkopf 17.3 ausgebildet und formschlüssig mit der Motorwelle verbunden. Die Motorwelle und die Antriebswelle fluchten miteinander.The lever 17.2 torsionally rigid carrying drive shaft 17.1 is divided between the motor 18 and lever 17.2, wherein the motor-side shaft portion 17.11 is torsionally connected via the torsion spring 22 with the separated shaft portion 17.12. The torsion spring 22 is received together with the split drive shaft 17.1 in the hollow cylindrical part 1.2 of the drain housing 1. The motor-side end of the drive shaft is in turn formed as a four-sided or polygonal head 17.3 and positively connected to the motor shaft. The motor shaft and the drive shaft are aligned.

Parallel zu dem hohlzylindrischen bzw. rohrförmigen Teil 1.2 des Ablaufgehäuses 1, in welchem die geteilte Antriebswelle 17.1 drehbar gelagert ist, ist eine weitere Halterung 23 zwischen dem Ablaufgehäuse 1 und dem schalenförmigen Teil 19.1 des Motorgehäuses 19 vorgesehen.Parallel to the hollow cylindrical or tubular part 1.2 of the drain housing 1, in which the split drive shaft 17.1 is rotatably mounted, a further support 23 between the drain body 1 and the cup-shaped part 19.1 of the motor housing 19 is provided.

Der Ventilschaft 14.1 des tellerförmigen Ventilkörpers 14 ist in dem Ausführungsbeispiel gemäß Fig. 8 als einteilige Hülse oder Stange ausgebildet, die an ihrem unteren Ende ein Innengewinde für eine Ausgleichsschraube (Verstellschraube) 15 aufweist. Das obere Ende der Stange bzw. Hülse 14.1 durchdringt den tellerförmigen Ventilkörper 14. Im Übrigen sind der Ventilkörper 14 und das Ventiloberteil 5 wie in dem in den Figuren 2 bis 6 dargestellt ausgeführt.The valve stem 14.1 of the plate-shaped valve body 14 is in the embodiment according to Fig. 8 formed as a one-piece sleeve or rod having at its lower end an internal thread for a balance screw (adjusting screw) 15. The upper end of the rod or sleeve 14.1 penetrates the plate-shaped valve body 14. Incidentally, the valve body 14 and the valve top 5 are as in the in the FIGS. 2 to 6 shown executed.

Wird der Elektromotor 18 angesteuert, um das Ablaufventil zu öffnen, und ist der Ventilkörper 14 blockiert, so stellt die Torsionsfeder 22 sicher, dass nur ein vorbestimmtes Drehmoment übertragen wird. Auch kann bei geöffnetem Ablaufventil der Ventilkörper 14 nach unten gedrückt werden, wobei der Hebel 17.2 gleichzeitig nach unten ausweicht und den drehstarr mit ihm verbundenen Antriebswellenabschnitt 17.12 dreht; allerdings muss dabei der Motor 18 aufgrund der Torsionsfeder 22 nicht nachgeben. Somit sind die Mechanik 17 und der Motor 18 auch bei dieser Ausführungsform zuverlässig vor Überlastung geschützt.When the electric motor 18 is driven to open the drain valve and the valve body 14 is blocked, the torsion spring 22 ensures that only a predetermined torque is transmitted. Also, with the drain valve open, the valve body 14 can be pressed down, wherein the lever 17.2 at the same time dodges down and rotates the rotationally rigidly connected to him drive shaft section 17.12; however, the motor 18 does not have to yield due to the torsion spring 22. Thus, the mechanism 17 and the motor 18 are reliably protected against overload in this embodiment.

Bei der in den Figuren 7 bis 10 dargestellten Alternative ist es konstruktiv nicht möglich, die Torsionsfeder 22 vorzuspannen. Um dennoch ein sicheres Öffnen und Schließen des Ablaufventils zu ermöglichen, dreht der Motor 18 in einem größeren Winkelbereich als es eigentlich für die Bewegung des Hebels 17.2 nötig wäre. Hierdurch wird erreicht, dass in der geöffneten bzw. geschlossenen Stellung des Ablaufventils die Torsionsfeder 22 durch den Motor 18 gespannt wird. Weiterhin lassen sich hierdurch Fertigungstoleranzen der Torsionsfeder 22, beispielsweise hinsichtlich der Winkelstellung der Federenden, ausgleichen.In the in the FIGS. 7 to 10 illustrated alternative, it is not structurally possible to bias the torsion spring 22. To still allow a safe opening and closing of the drain valve, the motor 18 rotates in a larger angular range than would actually be necessary for the movement of the lever 17.2. This ensures that in the open or closed position of the drain valve, the torsion spring 22 is tensioned by the motor 18. Furthermore, this allows manufacturing tolerances of the torsion spring 22, for example, with respect to the angular position of the spring ends, compensate.

Claims (8)

  1. Drain and overflow fitting, in particular for bathtubs or sinks, comprising a drain housing (1), a valve body (14) and a lever mechanism (17) which is rotatably mounted in the drain housing for actuating the valve body (14), the lever mechanism (17) being coupled to an electric motor (18), and an overload protection device (20; 22) being provided, characterised in that the overload protection device (20; 22) is arranged in the power transmission path from the electric motor (18) to the valve body (14), the overload protection device being formed of a torsion spring (22) arranged between the output shaft of the electric motor (18) and the lever (17.2) of the lever mechanism (17), or formed of a pressure spring (20) integrated in a telescopic valve shaft (14.1) connected to the valve body (14).
  2. Drain and overflow fitting according to claim 1, characterised in that the lever mechanism (17) has a split drive shaft (17.1), a portion (17.11) on the motor side of the drive shaft being coupled via the torsion spring (22), in a torsionally resilient manner, to a second drive shaft portion (17.12), from which a lever (17.2) protrudes radially.
  3. Drain and overflow fitting according to either claim 1 or claim 2, characterised in that the valve shaft (14.1) is formed of an outer pipe (14.11) and an inner rod (14.12) inserted therein, the inner rod (14.12) having a radial protrusion (14.13) as a support face for the lower end of the pressure spring (20), whilst the outer pipe (14.11) has a narrowing (14.14) in the inside thereof which functions as a stop for the upper end of the pressure spring (20).
  4. Drain and overflow fitting according to claim 3, characterised in that the upper end of the inner rod (14.12) has a threaded hole comprising a screw (14.15) screwed therein, the diameter of the screw head (14.16) being larger than the diameter of the inner rod (14.12) and the screw head (14.16) being guided with clearance into the portion of the outer tube (14.11) extending above the narrowing (14.14).
  5. Drain and overflow fitting according to either claim 3 or claim 4, characterised in that the lower end of the inner rod (14.12) has a threaded hole comprising a screw (15) screwed therein for length compensation.
  6. Drain and overflow fitting according to any of claims 1 to 5, characterised in that the pressure spring (20) is installed in a biased manner.
  7. Drain and overflow fitting according to any of claims 1 to 6, characterised in that the electric motor (18) is arranged in a motor housing (19) mounted on the drain housing (1).
  8. Drain and overflow fitting according to any of claims 1 to 7, characterised in that the rotational axis of the lever mechanism (17) and the output shaft of the electric motor (18) substantially align.
EP10189068.9A 2009-11-17 2010-10-27 Outlet and overflow fitting, in particular for bath tubs Active EP2322729B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200920015538 DE202009015538U1 (en) 2009-11-17 2009-11-17 Drain and overflow set, especially for bathtubs

Publications (3)

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EP2322729A2 EP2322729A2 (en) 2011-05-18
EP2322729A3 EP2322729A3 (en) 2012-10-10
EP2322729B1 true EP2322729B1 (en) 2016-01-06

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EP10189068.9A Active EP2322729B1 (en) 2009-11-17 2010-10-27 Outlet and overflow fitting, in particular for bath tubs

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EP (1) EP2322729B1 (en)
DE (1) DE202009015538U1 (en)
DK (1) DK2322729T3 (en)
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9260846B2 (en) 2011-08-18 2016-02-16 Kohler Co. Drain control assembly
DE102013107824A1 (en) * 2013-07-23 2015-01-29 Duravit Aktiengesellschaft Drain valve for insertion into a drain opening of a toilet or urinal
DE202013012152U1 (en) * 2013-11-05 2015-07-02 Grohe Ag Sanitary tank with electrically controllable drive for a closing element
CN103603416B (en) * 2013-11-29 2015-04-29 桂林康兴医疗器械有限公司 Digitally controllable drainage apparatus
DE102014103654A1 (en) * 2014-03-18 2015-09-24 Sonja Maria Bilz Drain closing plugs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480935C (en) * 1929-08-10 Emma Schaefer Bottom valve for sinks, bathtubs, etc. Like. With a closure body which can be lowered by the pressure of the basin contents against a helical spring that is watertightly enclosed by two telescoping sleeves
US2918999A (en) * 1957-06-19 1959-12-29 Television Associates Inc Overload control
DE2813088A1 (en) * 1978-03-25 1979-10-04 Viegener Ii Fa Franz Sink, wash-basin or bath outflow fitting - has electromagnet holding plug closure, actuator with spring or weight for release
DE3644480A1 (en) * 1986-12-24 1988-07-07 Grohe Kg Hans Sanitary discharge valve
FR2740793B1 (en) * 1995-11-03 1998-01-30 Wirquin Plastiques Sa CONTROL DEVICE FOR EMPTYING SANITARY APPLIANCES
EP1703027B1 (en) * 2005-03-17 2016-08-24 Geberit International AG Device for activating the outlet valve of sanitary articles and in particular a bathtub
DE202007012241U1 (en) * 2007-08-31 2007-12-27 Tg Kunststoffverarbeitung Gmbh pop-up waste

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ES2565406T3 (en) 2016-04-04
DK2322729T3 (en) 2016-03-21
EP2322729A2 (en) 2011-05-18
EP2322729A3 (en) 2012-10-10
DE202009015538U1 (en) 2011-04-07

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