EP0428634B1 - Whirlpool bath-tub - Google Patents

Whirlpool bath-tub Download PDF

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Publication number
EP0428634B1
EP0428634B1 EP90903769A EP90903769A EP0428634B1 EP 0428634 B1 EP0428634 B1 EP 0428634B1 EP 90903769 A EP90903769 A EP 90903769A EP 90903769 A EP90903769 A EP 90903769A EP 0428634 B1 EP0428634 B1 EP 0428634B1
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EP
European Patent Office
Prior art keywords
tub
water
air
whirlpool bath
pump wheel
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
EP90903769A
Other languages
German (de)
French (fr)
Other versions
EP0428634A1 (en
Inventor
Franz-Dieter Kaldewei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Kaldewei GmbH and Co KG
Original Assignee
KALDEWEI, Franz-Dieter
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Publication date
Application filed by KALDEWEI, Franz-Dieter filed Critical KALDEWEI, Franz-Dieter
Priority to AT90903769T priority Critical patent/ATE88624T1/en
Publication of EP0428634A1 publication Critical patent/EP0428634A1/en
Application granted granted Critical
Publication of EP0428634B1 publication Critical patent/EP0428634B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • A61H33/6063—Specifically adapted for fitting in bathtub walls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • A61H33/6047—With incorporated pump means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths

Definitions

  • the invention relates to a whirlpool bathtub with devices for generating water and air jets or exclusively water jets which can be fed to the tub space at several points of the tub wall and / or the tub floor, in which each of these sites an individual, drivable device for generating a Water and air jet or a water jet is assigned, which is placed on the tub wall or the tub floor or installed in the tub wall or the tub floor and can be acted upon from the outside of the tub with drive energy, in which each location has a nozzle housing with an impeller chamber with an impeller, which in a direction of rotation via suction openings of a cover that closes off the nozzle housing to the tub space and sucks water out of the tub space and supplies at least one channel in the cover from the impeller chamber, which ends in at least one outlet opening facing the tub space, and the like. in which an air duct opens, from which air is sucked in according to the Venturi principle u. is carried along.
  • a whirlpool bath of this type is known from DE-PS 38 00 400.
  • the device which is designed as a pump, conveys water that is used to draw in air and thus leads to a water-air bubble massage.
  • a whirlpool bathtub is known, in which the device provided for each location sucks out water and mixes it with air as a water jet and returns it to the tub space. These The whirlpool bath is used for the water jet massage.
  • the known whirlpool bath with facilities provided per location work with different operating modes.
  • the device can be driven in both directions of rotation, that the nozzle housing facing the tub space has an impeller chamber with an impeller that promotes in both directions, and that the impeller in the direction of rotation of the impeller still sucks water through the impeller support u. in the opposite direction of rotation as the pump wheel only sucks water out of the tub space through the suction openings and supplies it to the tub space as a water jet via a central outlet opening in the cover.
  • two operating modes can be implemented with the whirlpool bath.
  • the impeller works and generates a water jet for the water jet massage
  • the pump wheel conveys water, which is used to draw in air and thus leads to a water-air bubble massage.
  • the selection is made solely by the choice of the assigned direction of rotation of the device.
  • the device can be driven by means of an electric motor which can be switched in the direction of rotation, since this makes the selection particularly simple and can be carried out by means of electrical switching commands.
  • the construction of the device is such that the impeller and the pump wheel are arranged one behind the other in a rotationally fixed manner on a drive shaft of the electric motor. With this arrangement, the impeller still supports the function of the pump wheel.
  • the water jet massage with the water jet is improved in one embodiment in that the suction openings are distributed in a circle over the circumference of the impeller chamber. It is also provided that the suction openings are made as radially directed slots in the cover and that the outlet opening is formed by a retaining ring which is attached with a sleeve-shaped jet guide leading to the impeller chamber in a central opening of the cover. The water jet is then directed from the impeller chamber.
  • the water-air bubble massage with the jet consisting of water and air is achieved in that an air duct ends in the area of the outlet opening, which is connected to the atmosphere via air ducts outside the tub space and via which air is sucked in by the Venturi principle and from which sucked water can be supplied to the tub space.
  • the water only serves as a carrier for the air bubbles.
  • An admixture of air to the water jet conveyed by the impeller is made possible by the fact that air is admixed to the water jet sucked in by the impeller and supplied to the tub space via the outlet opening of the impeller chamber, which air can be sucked in from the atmosphere via air channels according to the Venturi principle, the air channels in the area end of the outlet opening of the impeller chamber.
  • the central outlet opening of the cover is covered with a protective grille which is connected to the beam guide by means of the retaining ring.
  • a further embodiment provides that the pump wheel facing the impeller has a central inlet opening and has a plurality of radial pump channels which end in the region of the peripheral wall of the pump wheel chamber and the outlet opening thereof.
  • the exemplary embodiment shows a device which is suitable for installation in an opening in the tub wall 21 of a bathtub.
  • the motor mount 10, which has a contact flange, is inserted into the opening. With the triple seal 19, the washer 18 and the threaded ring 17, which is screwed onto an external thread of the motor mount 10, the motor mount 10 is inserted tightly into the opening in the tub wall 21.
  • the electric motor 12 with the motor shield 11 is covered by the receptacle 14, which is connected to the motor receptacle 10.
  • the drive shaft 13 of the electric motor 12 protrudes from the motor shield 11 and carries the impeller 27 and the impeller 26 one after the other in a rotationally fixed manner.
  • the cap nut 25 holds the impeller 26 and the impeller 27 on the drive shaft 13.
  • the impeller 26 faces the trough space and is covered by the cover 30, which is screwed onto the flange of the cover 30 or is otherwise connected to it.
  • the motor shield 11 and the intermediate ring 28 partitions off the pump wheel chamber PK, while the impeller chamber FK is formed between the intermediate ring 28 and the cover 30.
  • the pump wheel 27 is arranged in the pump wheel chamber PK and faces the impeller 26 like the intermediate ring 28 has a central opening which opens into a plurality of radial pump channels. These pump channels end on the peripheral wall of the impeller chamber PK, which is formed by the motor mount 10.
  • the outlet opening 33 which faces the trough bottom, is introduced into the motor mount 10, which starts from the pump wheel chamber PK.
  • the air channel 32 opens, which is likewise introduced into the motor mount 10 and is connected to the air channels 31, which lead to the hose nozzle 16.
  • the sealing plug 15 closes the last air duct 31.
  • An air hose is connected to the hose nozzle 16 outside the tub space, the free end of which ends in the atmosphere above the maximum level of the tub space.
  • the cover 30 forms an annular chamber towards the motor mount 10, into which the air channels 31 and 32 open.
  • the cover 30 is provided with a ring of suction openings 34 designed as radial slots, which open into the impeller chamber FK in the peripheral region of the impeller 26.
  • the cover 30 has a central opening in which the beam guide 23 to the impeller 26 is fixed by means of the retaining ring 22.
  • the retaining ring 22 simultaneously defines the protective grille 24 which forms the outlet opening 35 from the impeller chamber FK.
  • the central guide body is connected via radial webs to a circumferential web of the protective grid 24. The slots remaining between the webs form the outlet opening 35.
  • FIG. 1 shows the air bubble massage operation in which the electric motor 12 is operated in the direction of rotation in which the pump wheel 27 operates.
  • the suction openings 34 of the cover 30 to the impeller chamber FK water W is sucked in, which passes through the intermediate ring 28 into the pump wheel chamber PK and is fed there from the pump wheel 27 via the pump channels to the outlet opening 33. Due to the Venturi principle, the water flowing out of the outlet opening 33 sucks air L out of the air channel 32 Atmosphere that is supplied to the tub space in the form of air bubbles.
  • the water W only serves as a carrier.
  • the water W is also sucked in via the outlet opening 35 of the impeller chamber FK, the impeller 26 supporting the suction of water W in this direction of rotation, as the dash-dotted flow lines shown in FIG. 1 show. So that the impeller 26 has a supporting effect here, the vanes are inclined on the hub of the impeller 26 in such a way that they also draw water W through the outlet opening 35 of the impeller chamber FK.
  • the circles indicate the sucked-in air flow, which is carried as air bubbles by the water W to the tub area.
  • the water jet massage operating mode can be selected by switching the direction of rotation of the electric motor 12.
  • the impeller 26 rotates so that water W is sucked in through the suction openings 34 in the cover 30 and is emitted as a water jet via the central outlet opening 35.
  • the impeller 27 does not work in this direction of rotation.
  • the amount of water drawn in by the impeller 26 can be very large. You can also increase the speed when changing the direction of rotation in the water jet massage mode.
  • Air L can be added to the water jet if the device has air channels 29, which are designed as connecting pipes. These air channels 29 are connected to the atmosphere via the air channels 31 and end in the area of the outlet opening 35 of the impeller chamber FK, specifically in the area of the jet guide 23.
  • the protective grille 24 has openings at the ends of the air channels 29 so that the water jet emerging after the Venturi principle Suck air bubbles out of the air channels 29 and carry them with you can.
  • the air channels 29 can be connected to an annular channel which is connected to the hose nozzle 16 via the air channel 31.
  • a plurality of air channels 29 are then arranged at uniform angles over the circumference of the jet guide 23 and thus the outlet opening 35 in the protective grille 24, in order to admix air to the water jet at several points.
  • the dash-dotted lines show the flow pattern of the water W and the circles indicate the air bubble flow.
  • the impeller 19 only works in the direction of rotation to generate the water jet and does not impair the function of the impeller 27, it can be provided that the impeller 26 is rotationally connected to the motor shaft 13 only in the direction of rotation to generate the water jet, while in the opposite direction of rotation on the motor shaft is freely rotatable.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

The invention relates to a whirlpool bath-tub with operable devices to discharge, convey and feed in water (W) and/or air (L) which may be fed into the tub at several points in the side (21) and/or bottom; at each of these points there is a device for the individual discharge and feed-in of water (W) and/or air (L) and to direct the stream produced which is permanently installed on or in the side (21) or bottom of the tub and can be individually powered from outside the tub. So that air and water jet massage may be administered as desired using the same devices, the device can be operated in both directions of rotation and has an impeller (26) in an impeller chamber (FK) and a pump impeller (27) in a pump impeller chamber (PK); in one direction of rotation of the device, the impeller (26) extracts water (W) from the tub and returns it via an outlet (35) in the impeller chamber to the tub in the form of a jet of water while in the other direction of rotation the pump impeller (27) extracts water (W) from the tub and the extracted water (W) may be returned to the tub mixed with air (L) via an outlet (33) in the pump impeller chamber (PK).

Description

Die erfindung betrifft eine Whirlpool-Badewanne mit Einrichtungen zum Erzeugen von Wasser- und Luftstrahlen oder ausschließlich von Wasserstrahlen, die an mehreren Stellen der Wannenwand und/oder der Wannenbodens dem Wannenraum zuführbar sind, bei der jeder dieser Stellen eine individuelle, antreibbare Einrichtung zum Erzeugen eines Wasser- und Luftstrahles oder eines Wasserstrahles zugeordnet ist, die auf der Wannenwand oder dem Wannenboden aufgesetzt oder in die Wannenwand oder dem Wannenboden eingebaut und von der Wannenaußenseite her mit Antriebsenergie beaufschlagbar ist, bei der jeder Stelle ein Düsengehäuse mit einer Pumpenradkammer mit Pumpenrad aufweist, das in einer Drehrichtung über Ansaugöffnungen einer das Düsengehäuse zum Wannenraum hin abschließenden Abdeckung Wasser aus dem Wannenraum ansaugt und aus der Pumpenradkammer mindestens einem Kanal in der Abdeckung zuführt, der in mindestens einer zu Wannenraum hin gerichteten Austrittsöffnung endet, u. in welchen ein Lufskanal mündet, aus dem nach dem Venturiprinzip Luft angesaugt u. mitgeführt wird.The invention relates to a whirlpool bathtub with devices for generating water and air jets or exclusively water jets which can be fed to the tub space at several points of the tub wall and / or the tub floor, in which each of these sites an individual, drivable device for generating a Water and air jet or a water jet is assigned, which is placed on the tub wall or the tub floor or installed in the tub wall or the tub floor and can be acted upon from the outside of the tub with drive energy, in which each location has a nozzle housing with an impeller chamber with an impeller, which in a direction of rotation via suction openings of a cover that closes off the nozzle housing to the tub space and sucks water out of the tub space and supplies at least one channel in the cover from the impeller chamber, which ends in at least one outlet opening facing the tub space, and the like. in which an air duct opens, from which air is sucked in according to the Venturi principle u. is carried along.

Eine Whirlpool-Badewanne dieser Art ist durch die DE-PS 38 00 400 bekannt. Mit der als Pumpe ausgebildeten Einrichtung wird Wasser gefördert, das zur Ansaugung von Luft verwendet wird und so zu einer Wasser-Luft-Sprudelmassage führt.A whirlpool bath of this type is known from DE-PS 38 00 400. The device, which is designed as a pump, conveys water that is used to draw in air and thus leads to a water-air bubble massage.

Aus der DE-OS 37 16 683 ist eine Whirlpool-Badewanne bekannt, bei der die pro Stelle vorgesehene Einrichtung Wasser ausaugt, und als Wasserstrahl mit Luft vermischt dem Wannenraum wieder zuführt. Diese Whirlpool-Badewanne wird für die Wasserstrahlmassage verwendet. Die bekannten Whirlpool-Badewanne mit pro Stelle vorgesehenen Einrichtungen arbeiten mit unterschiedlichen Betriebsarten.From DE-OS 37 16 683 a whirlpool bathtub is known, in which the device provided for each location sucks out water and mixes it with air as a water jet and returns it to the tub space. These The whirlpool bath is used for the water jet massage. The known whirlpool bath with facilities provided per location work with different operating modes.

Es ist Aufgabe der Erfindung, eine Whirlpool-Badewanne der eingangs erwähnten Art zu schaffen, die mit einheitlichen Einrichtungen versehen, wahlweise für die Wasserstrahlmassage oder die Wasser-Luft-Sprudelmassage verwendet werden kann.It is an object of the invention to provide a whirlpool bathtub of the type mentioned at the outset, which can be provided with unitary devices and can be used either for the water jet massage or the water-air bubble massage.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Einrichtung in beiden Drehrichtungen antreibbar ist, daß das Düsengehäuse dem Wannenraum zugekehrt eine Flügelradkammer mit einem in beide Richtungen förderndes Flügelrad aufweist und daß das Flügelrad in Drehrichtung der Pumpenrades das Ansaugen von Wasser durch das Pumpenrad noch unterstützs u. in der entgegengesetzten Drehrichtung wie das Pumpenrad über die Ansaugöffnungen ausschließlich Wasser aus dem Wannenraum ansaugt und über eine zentrale Austrittsöffnung in der Abdeckung dem Wannenraum als Wasserstrahl zuführt.This object is achieved according to the invention in that the device can be driven in both directions of rotation, that the nozzle housing facing the tub space has an impeller chamber with an impeller that promotes in both directions, and that the impeller in the direction of rotation of the impeller still sucks water through the impeller support u. in the opposite direction of rotation as the pump wheel only sucks water out of the tub space through the suction openings and supplies it to the tub space as a water jet via a central outlet opening in the cover.

Durch die Ausnutzung der beiden Drehrichtungen der Einrichtung lassen sich mit der Whirlpool-Badewanne wahlweise zwei Betriebsarten realisieren. In der einen Betriebsart arbeitet das Flügelrad und erzeugt einen Wasserstrahl für die Wasserstrahlmassage, während in der anderen Betriebsart das Pumpenrad Wasser fördert, das zur Ansaugung von Luft ausgenützt wird und so zu einer Wasser-Luft-Sprudelmassage führt. Die Auswahl wird allein durch die Wahl der zugeordneten Drehrichtung der Einrichtung getroffen.By using the two directions of rotation of the device, two operating modes can be implemented with the whirlpool bath. In one operating mode, the impeller works and generates a water jet for the water jet massage, while in the other operating mode, the pump wheel conveys water, which is used to draw in air and thus leads to a water-air bubble massage. The selection is made solely by the choice of the assigned direction of rotation of the device.

Nach einer bevorzugten Ausgestaltung ist vorgesehen, daß die Einrichtung mittels eines in der Drehrichtung umschaltbaren Elektromotors antreibbar ist, da damit die Auswahl besonders einfach wird und durch elektrische Schaltbefehle vorgenommen werden kann.According to a preferred embodiment it is provided that the device can be driven by means of an electric motor which can be switched in the direction of rotation, since this makes the selection particularly simple and can be carried out by means of electrical switching commands.

Der konstruktive Aufbau der Einrichtung ist nach einer Ausgestaltung so ausgeführt, daß das Flügelrad und das Pumpenrad unmittelbar hintereinander drehfest auf einer Antriebswelle des Elektromotors angeordnet sind. Bei dieser Anordnung unterstützt das Flügelrad noch die Funktion des Pumpenrades.According to one embodiment, the construction of the device is such that the impeller and the pump wheel are arranged one behind the other in a rotationally fixed manner on a drive shaft of the electric motor. With this arrangement, the impeller still supports the function of the pump wheel.

Die Wasserstrahlmassage mit dem Wasserstrahl wird nach einer Ausgestaltung dadurch verbessert, daß die Ansaugöffnungen kreisförmig über den Umfang der Flügelradkammer verteilt sind. Dabei ist zudem vorgesehen, daß die Ansaugöffnungen als radial gerichtete Schlitze in die Abdeckung eingebracht sind und daß die Austrittsöffnung von einem Haltering gebildet ist, der mit einer zur Flügelradkammer führenden hülsenförmigen Strahlführung in einer zentrischen Öffnung der Abdeckung angebracht ist. Der Wasserstrahl wird dann gerichtet aus der Flügelradkammer abgegeben.The water jet massage with the water jet is improved in one embodiment in that the suction openings are distributed in a circle over the circumference of the impeller chamber. It is also provided that the suction openings are made as radially directed slots in the cover and that the outlet opening is formed by a retaining ring which is attached with a sleeve-shaped jet guide leading to the impeller chamber in a central opening of the cover. The water jet is then directed from the impeller chamber.

Die Wasser-Luft-Sprudelmassage mit dem aus Wasser und Luft bestehenden Strahl wird dadurch erreicht, daß im Bereich der Austrittsöffnung ein Luftkanal endet, der über Luftkanäle außerhalb des Wannenraumes mit der Atmosphäre in Verbindung steht und über den nach dem Venturiprinzip Luft angesaugt und von dem angesaugten Wasser dem Wannenraum zuführbar ist. Das Wasser dient dabei nur als Träger der Luftbläschen.The water-air bubble massage with the jet consisting of water and air is achieved in that an air duct ends in the area of the outlet opening, which is connected to the atmosphere via air ducts outside the tub space and via which air is sucked in by the Venturi principle and from which sucked water can be supplied to the tub space. The water only serves as a carrier for the air bubbles.

Eine Beimischung von Luft zu dem vom Flügelrad geförderten Wasserstrahl wird dadurch ermöglicht, daß dem vom Flügelrad angesaugten und über die Austrittsöffnung der Flügelradkammer dem Wannenraum zugeführten Wasserstrahl Luft beigemengt ist, die nach dem Venturiprinzip über Luftkanäle aus der Atmosphäre ansaugbar ist, wobei die Luftkanäle im Bereich der Austrittsöffnung der Flügelradkammer enden.An admixture of air to the water jet conveyed by the impeller is made possible by the fact that air is admixed to the water jet sucked in by the impeller and supplied to the tub space via the outlet opening of the impeller chamber, which air can be sucked in from the atmosphere via air channels according to the Venturi principle, the air channels in the area end of the outlet opening of the impeller chamber.

Damit das Flügelrad oder das Pumpenrad keine Haare oder dgl. ansaugt, ist die zentrische Austrittsöffnung der Abdeckung mit einem Schutzgitter abgedeckt, das mittels des Halteringes mit der Strahlführung verbunden ist.So that the impeller or the pump wheel does not suck in hair or the like, the central outlet opening of the cover is covered with a protective grille which is connected to the beam guide by means of the retaining ring.

Der dichte Einbau der Einrichtung in einen Durchbruch der Badewanne wird trotz Drehlagerung der Antriebswelle des Elektromotors dadurch erreicht, daß die Pumpenradkammer zum Elektromotor hin mittels eines Motorschildes abgeschlossen ist, in dem die Antriebswelle mittels einer Gleitringdichtung drehbar, jedoch abgedichtet gelagert ist. Dabei ist vorgesehen, daß sich die Gleitringdichtung an einer Bohrung des Motorschildes und einer auf die Antriebswelle aufgeschobenen und festsitzenden Hülse des Pumpenrades abstützt.The tight installation of the device in a breakthrough of the bathtub is achieved despite the rotary bearing of the drive shaft of the electric motor in that the pump wheel chamber is closed to the electric motor by means of a motor shield in which the drive shaft is rotatably but sealed sealed by means of a mechanical seal. It is provided that the mechanical seal is supported on a bore in the motor shield and on a sleeve of the pump wheel that is pushed and firmly attached to the drive shaft.

Eine weitere Ausgestaltung sieht vor, daß das Pumpenrad dem Flügelrad zugekehrt eine zentrische Einlaßöffnung aufweist und mehrere radiale Pumpenkanäle aufweist, die im Bereich der Umfangswand der Pumpenradkammer und der Austrittsöffnung derselben enden.A further embodiment provides that the pump wheel facing the impeller has a central inlet opening and has a plurality of radial pump channels which end in the region of the peripheral wall of the pump wheel chamber and the outlet opening thereof.

Eine optimale Sprudelwirkung wird dabei dadurch erreicht, daß die Einrichtung in die Wannenwand eingebaut ist und daß die Austrittsöffnung der Pumpenradkammer in Richtung zum Wannenboden gerichtet ist.An optimal effervescent effect is achieved in that the device is built into the tub wall and that the outlet opening of the pump wheel chamber is directed towards the tub floor.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigt:

Fig. 1
im Schnitt die Einrichtung, die in der einen Drehrichtung im Luftsprudelmassage-Betrieb arbeitet, und
Fig. 2
im Schnitt die Einrichtung, die in der anderen Drehrichtung im Wasserstrahlmassage-Betrieb arbeitet.
The invention is explained in more detail using an exemplary embodiment shown in the drawings. It shows:
Fig. 1
on average the device that works in one direction of rotation in the air massage operation, and
Fig. 2
on average the device that works in the other direction of rotation in the water jet massage mode.

Das Ausführungsbeispiel zeigt eine Einrichtung, die sich für den Einbau in einen Durchbruch der Wannenwand 21 einer Badewanne eignet. In den Durchbruch wird die Motoraufnahme 10 eingesetzt, die einen Anlageflansch aufweist. Mit der Dreifachdichtung 19, der Scheibe 18 und dem Gewindering 17, der auf ein Außengewinde der Motoraufnahme 10 aufgeschraubt wird, ist die Motoraufnahme 10 dicht in den Durchbruch der Wannenwand 21 eingesetzt. Der Elektromotor 12 mit dem Motorschild 11 wird dabei von dem Aufnahmetopf 14 abgedeckt, der mit der Motoraufnahme 10 verbunden ist. Die Antriebswelle 13 des Elektromotors 12 ragt aus dem Motorschild 11 und trägt nacheinander drehfest das Pumpenrad 27 und das Flügelrad 26. Die Hutmutter 25 hält das Flügelrad 26 und das Pumpenrad 27 auf der Antriebswelle 13 fest. Das Flügelrad 26 ist dem Wannenraum zugekehrt und mittels der Abdeckung 30 abgedeckt, die auf den Flansch der Abdeckung 30 aufgeschraubt oder anderweitig mit dieser verbunden ist. Der Motorschild 11 und der Zwischenring 28 teilt die Pumpenradkammer PK ab, während zwischen dem Zwischenring 28 und der Abdeckung 30 die Flügelradkammer FK gebildet wird. In der Pumpenradkammer PK ist das Pumpenrad 27 angeordnet, das dem Flügelrad 26 zugekehrt wie der Zwischenring 28 eine zentrische Öffnung aufweist, die in mehrere radiale Pumpenkanäle einmündet. Diese Pumpenkanäle enden an der Umfangswand der Pumpenradkammer PK, die durch die Motoraufnahme 10 gebildet wird. Dem Wannenboden zugekehrt ist die Austrittsöffnung 33 in die Motoraufnahme 10 eingebracht, die von der Pumpenradkammer PK ausgeht.The exemplary embodiment shows a device which is suitable for installation in an opening in the tub wall 21 of a bathtub. The motor mount 10, which has a contact flange, is inserted into the opening. With the triple seal 19, the washer 18 and the threaded ring 17, which is screwed onto an external thread of the motor mount 10, the motor mount 10 is inserted tightly into the opening in the tub wall 21. The electric motor 12 with the motor shield 11 is covered by the receptacle 14, which is connected to the motor receptacle 10. The drive shaft 13 of the electric motor 12 protrudes from the motor shield 11 and carries the impeller 27 and the impeller 26 one after the other in a rotationally fixed manner. The cap nut 25 holds the impeller 26 and the impeller 27 on the drive shaft 13. The impeller 26 faces the trough space and is covered by the cover 30, which is screwed onto the flange of the cover 30 or is otherwise connected to it. The motor shield 11 and the intermediate ring 28 partitions off the pump wheel chamber PK, while the impeller chamber FK is formed between the intermediate ring 28 and the cover 30. The pump wheel 27 is arranged in the pump wheel chamber PK and faces the impeller 26 like the intermediate ring 28 has a central opening which opens into a plurality of radial pump channels. These pump channels end on the peripheral wall of the impeller chamber PK, which is formed by the motor mount 10. The outlet opening 33, which faces the trough bottom, is introduced into the motor mount 10, which starts from the pump wheel chamber PK.

Unmittelbar an der Austrittsöffnung 33 mündet der Luftkanal 32, der ebenfalls in die Motoraufnahme 10 eingebracht ist und mit den Luftkanälen 31 in Verbindung steht, die zur Schlauchtülle 16 führen. Der Verschlußstopfen 15 verschließt den letzten Luftkanal 31. An die Schlauchtülle 16 wird außerhalb des Wannenraumes ein Luftschlauch angeschlossen, dessen freies Ende über dem maximalen Pegelstand des Wannenraumes in die Atmosphäre endet.Immediately at the outlet opening 33, the air channel 32 opens, which is likewise introduced into the motor mount 10 and is connected to the air channels 31, which lead to the hose nozzle 16. The sealing plug 15 closes the last air duct 31. An air hose is connected to the hose nozzle 16 outside the tub space, the free end of which ends in the atmosphere above the maximum level of the tub space.

Die Abdeckung 30 bildet zur Motoraufnahme 10 hin eine Ringkammer, in die die Luftkanäle 31 und 32 münden.The cover 30 forms an annular chamber towards the motor mount 10, into which the air channels 31 and 32 open.

Zum Wannenraum hin ist die Abdeckung 30 mit einem Ring von als radiale Schlitze ausgebildeten Ansaugöffnungen 34 versehen, die im Umfangsbereich des Flügelrades 26 in die Flügelradkammer FK einmünden. Die Abdeckung 30 hat eine zentrische Öffnung, in der mittels des Halteringes 22 die Strahlführung 23 zum Flügelrad 26 festgelegt ist. Der Haltering 22 legt dabei gleichzeitig das Schutzgitter 24 fest, das die Austrittsöffnung 35 aus der Flügelradkammer FK bildet. Dabei steht der zentrische Leitkörper über radiale Stege mit einem Umfangssteg des Schutzgitters 24 in Verbindung. Die zwischen den Stegen verbleibenden Schlitze bilden die Austrittsöffnung 35.Towards the trough space, the cover 30 is provided with a ring of suction openings 34 designed as radial slots, which open into the impeller chamber FK in the peripheral region of the impeller 26. The cover 30 has a central opening in which the beam guide 23 to the impeller 26 is fixed by means of the retaining ring 22. The retaining ring 22 simultaneously defines the protective grille 24 which forms the outlet opening 35 from the impeller chamber FK. The central guide body is connected via radial webs to a circumferential web of the protective grid 24. The slots remaining between the webs form the outlet opening 35.

Fig. 1 zeigt den Luftsprudelmassage-Betrieb, bei dem der Elektromotor 12 in der Drehrichtung betrieben wird, in der das Pumpenrad 27 arbeitet. Über die Ansaugöffnungen 34 der Abdeckung 30 zur Flügelradkammer FK wird Wasser W angesaugt, das durch den Zwischenring 28 in die Pumpenradkammer PK gelangt und dort vom Pumpenrad 27 über die Pumpenkanäle der Austrittsöffnung 33 zugeführt wird. Aufgrund des Venturiprinzips saugt das aus der Austrittsöffnung 33 fließende Wasser über den Luftkanal 32 Luft L aus der Atmosphäre an, die in Form von Luftbläschen dem Wannenraum zugeführt wird. Dabei dient das Wasser W nur als Träger. Das Wasser W wird auch über die Austrittsöffnung 35 der Flügelradkammer FK angesaugt, wobei das Flügelrad 26 in dieser Drehrichtung das Ansaugen von Wasser W unterstützt, wie die in Fig. 1 eingezeichneten strichpunktierten Strömungslinien zeigen. Damit das Flügelrad 26 hier unterstützend wirkt, sind die Flügel so auf der Nabe des Flügelrades 26 schräg gestellt, daß sie ebenfalls Wasser W über die Austrittsöffnung 35 der Flügelradkammer FK ansaugen. Die Kreise deuten den angesaugten Luftstrom an, der als Luftbläschen vom Wasser W getragen dem Wannenraum zugeführt wird.1 shows the air bubble massage operation in which the electric motor 12 is operated in the direction of rotation in which the pump wheel 27 operates. Via the suction openings 34 of the cover 30 to the impeller chamber FK, water W is sucked in, which passes through the intermediate ring 28 into the pump wheel chamber PK and is fed there from the pump wheel 27 via the pump channels to the outlet opening 33. Due to the Venturi principle, the water flowing out of the outlet opening 33 sucks air L out of the air channel 32 Atmosphere that is supplied to the tub space in the form of air bubbles. The water W only serves as a carrier. The water W is also sucked in via the outlet opening 35 of the impeller chamber FK, the impeller 26 supporting the suction of water W in this direction of rotation, as the dash-dotted flow lines shown in FIG. 1 show. So that the impeller 26 has a supporting effect here, the vanes are inclined on the hub of the impeller 26 in such a way that they also draw water W through the outlet opening 35 of the impeller chamber FK. The circles indicate the sucked-in air flow, which is carried as air bubbles by the water W to the tub area.

Wie Fig. 2 zeigt, kann durch Umschaltung der Drehrichtung des Elektromotors 12 die Betriebsart Wasserstrahlmassage gewählt werden. Dabei dreht sich das Flügelrad 26 so, daß Wasser W über die Ansaugöffnungen 34 in der Abdeckung 30 angesaugt und über die zentrische Austrittsöffnung 35 als Wasserstrahl abgegeben sind. Das Pumpenrad 27 arbeitet in dieser Drehrichtung nicht. Die vom Flügelrad 26 angesaugte Menge an Wasser kann sehr groß sein. Man kann bei der Drehrichtungsumschaltung in den Wasserstrahlmassage-Betrieb auch gleichzeitig die Drehzahl erhöhen.As FIG. 2 shows, the water jet massage operating mode can be selected by switching the direction of rotation of the electric motor 12. The impeller 26 rotates so that water W is sucked in through the suction openings 34 in the cover 30 and is emitted as a water jet via the central outlet opening 35. The impeller 27 does not work in this direction of rotation. The amount of water drawn in by the impeller 26 can be very large. You can also increase the speed when changing the direction of rotation in the water jet massage mode.

Dem Wasserstrahl kann Luft L beigemischt werden, wenn die Einrichtung Luftkanäle 29, die als Verbindungsrohre ausgebildet sind, aufweist. Diese Luftkanäle 29 stehen über die Luftkanäle 31 mit der Atmosphäre in Verbindung und enden im Bereich der Austrittsöffnung 35 der Flügelradkammer FK und zwar im Bereich der Strahlführung 23. Das Schutzgitter 24 hat dabei an den Enden der Luftkanäle 29 Durchbrüche, damit der austretende Wasserstrahl nach dem Venturiprinzip Luftbläschen aus den Luftkanälen 29 ansaugen und mitführen kann. Die Luftkanäle 29 können mit einem Ringkanal in Verbindung stehen, der über den Luftkanal 31 mit der Schlauchtülle 16 in Verbindung steht. Über den Umfang der Strahlführung 23 und damit der Austrittsöffnung 35 in dem Schutzgitter 24 sind dann mehrere Luftkanäle 29 in gleichmäßiger Winkelteilung angeordnet, um dem Wasserstrahl an mehreren Stellen Luft beizumengen. Die strichpunktierten Linien zeigen den Strömungsverlauf des Wassers W und die Kreise deuten den Luftbläschenstrom an.Air L can be added to the water jet if the device has air channels 29, which are designed as connecting pipes. These air channels 29 are connected to the atmosphere via the air channels 31 and end in the area of the outlet opening 35 of the impeller chamber FK, specifically in the area of the jet guide 23. The protective grille 24 has openings at the ends of the air channels 29 so that the water jet emerging after the Venturi principle Suck air bubbles out of the air channels 29 and carry them with you can. The air channels 29 can be connected to an annular channel which is connected to the hose nozzle 16 via the air channel 31. A plurality of air channels 29 are then arranged at uniform angles over the circumference of the jet guide 23 and thus the outlet opening 35 in the protective grille 24, in order to admix air to the water jet at several points. The dash-dotted lines show the flow pattern of the water W and the circles indicate the air bubble flow.

Damit das Flügelrad 19 nur in der Drehrichtung zur Erzeugung des Wasserstrahles arbeitet und die Funktion des Pumpenrades 27 nicht beeinträchtigt, kann vorgesehen sein, daß das Flügelrad 26 nur in der Drehrichtung zur Erzeugung des Wasserstrahles drehfest mit der Motorwelle 13 verbunden ist, während es in der entgegengesetzten Drehrichtung auf der Motorwelle frei drehbar ist.So that the impeller 19 only works in the direction of rotation to generate the water jet and does not impair the function of the impeller 27, it can be provided that the impeller 26 is rotationally connected to the motor shaft 13 only in the direction of rotation to generate the water jet, while in the opposite direction of rotation on the motor shaft is freely rotatable.

Claims (13)

  1. Whirlpool bath-tub, including arrangements for generating water and air jets, or exclusively water jets, which can be supplied to the tub interior at a plurality of locations in the tub wall (21) and/or in the tub base, wherein each of these locations has associated therewith an individual, drivable arrangement for generating a water and air jet or a water jet, which arrangement is mounted on the tub wall (21) or on the tub base or is incorporated into the tub wall (21) or into the tub base and can be actuated with driving energy from the outside of the tub, wherein each location has associated therewith a nozzle housing with a pump wheel chamber (PX) provided with pump wheel (27), which draws-off water from the tub interior in a rotational direction via suction apertures (34) in a cover, which seals the nozzle housing towards the tub interior, and said pump wheel supplies such water from the pump wheel chamber (PK) to at least one duct in the cover (30), which duct terminates in at least one outlet aperture (33) orientated towards the tub interior, and into which interior an air duct (32) extends, from which air is drawn-off, according to the Venturi principle, and guided thereby, characterised in that the arrangement is drivable in both rotational directions, in that the nozzle housing facing the tub interior has a vane wheel chamber (FK) provided with a vane wheel (26), which conveys fluid in both directions, and in that the vane wheel (26) further promotes the drawing-off of water by the pump wheel (27) in the rotational direction of the pump wheel (27) and, like the pump wheel (27), draws-off water exclusively from the tub interior via the suction apertures (34) in the opposite rotational direction and supplies it as a water jet to the tub interior via a central outlet aperture (35) in the cover (30).
  2. Whirlpool bath-tub according to claim 1, characterised in that the arrangement is drivable by means of an electric motor (12), which is switchable in respect of the rotational direction.
  3. Whirlpool bath-tub according to claim 1 or 2, characterised in that the vane wheel (26) and the pump wheel (27) are disposed immediately behind one another in a non-rotatable manner on a drive shaft (13) of the electric motor (12).
  4. Whirlpool bath-tub according to one of claims 1 to 3, characterised in that the suction apertures (34) are distributed in a circle over the periphery of the vane wheel chamber (FK).
  5. Whirlpool bath-tub according to claim 4, characterised in that the suction apertures (34) are introduced into the cover (30) as radially orientated slots, and in that the outlet aperture (35) is formed by a retaining ring (22), which is mounted in a central aperture in the cover with a sleeve-like jet guide means (23) extending to the vane wheel chamber (FK).
  6. Whirlpool bath-tub according to one of claims 1 to 5, characterised in that the air duct (32) terminates in the region of the outlet aperture (33) in the pump wheel chamber (PK) and communicates with the atmosphere via air ducts (31) externally of the tub interior, and air (L) is drawn-off via said air duct (32), according to the Venturi principle, and can be supplied to the tub interior from the drawn-off water (W).
  7. Whirlpool bath-tub according to one of claims 1 to 6, characterised in that air (L) is admixed to the water jet, which is drawn-off by the vane wheel (26) and supplied to the tub interior via the outlet aperture (35) in the vane wheel chamber (FK), such air being able to be drawn-off from the atmosphere via air ducts (29, 31), according to the Venturi principle, the air ducts (29) terminating in the region of the outlet aperture (35) in the vane wheel chamber (FK).
  8. Whirlpool bath-tub according to one of claims 4 to 7, characterised in that the outlet aperture (35) in the vane wheel chamber (FK) is covered by means of a protective mesh (24), which is connected to the jet guide means (23) by means of the retaining ring (22).
  9. Whirlpool bath-tub according to one of claims 1 to 8, characterised in that the pump wheel chamber (PK) is sealed towards the electric motor (12) by means of a motor plate (11), in which the drive shaft (13) is mounted so as to be rotatable by means of a slide ring seal (20), but in a sealed manner.
  10. Whirlpool bath-tub according to claim 9, characterised in that the slide ring seal (20) is supported on a bore in the motor plate (11) and on a sleeve of the pump wheel (27), which sleeve is slipped over the drive shaft (13) and sits securedly thereon.
  11. Whirlpool bath-tub according to one of claims 1 to 10, characterised in that the pump wheel (27) facing the vane wheel (26) has a central inlet aperture and a plurality of radial pump ducts, which terminate in the region of the peripheral wall of the pump wheel chamber (PK) and the outlet aperture (33) thereof.
  12. Whirlpool bath-tub according to claim 11, characterised in that the arrangement is installed in the tub wall, and in that the outlet aperture (33) in the pump wheel chamber (PK) is orientated in a direction towards the tub base.
  13. Whirlpool bath-tub according to one of claims 1 to 12, characterised in that the vane wheel (26) is connected to the motor shaft (13) in a non-rotatable manner only in the rotational direction for the generation of the water jet, while it is freely rotatable on the motor shaft (13) in the opposite rotational direction.
EP90903769A 1989-03-09 1990-03-02 Whirlpool bath-tub Expired - Lifetime EP0428634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90903769T ATE88624T1 (en) 1989-03-09 1990-03-02 WHIRLPOOL BATHTUB.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912810A DE3912810A1 (en) 1989-03-09 1989-03-09 WHIRLPOOL BATHTUB
DE3912810 1989-03-09

Publications (2)

Publication Number Publication Date
EP0428634A1 EP0428634A1 (en) 1991-05-29
EP0428634B1 true EP0428634B1 (en) 1993-04-28

Family

ID=6378971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90903769A Expired - Lifetime EP0428634B1 (en) 1989-03-09 1990-03-02 Whirlpool bath-tub

Country Status (4)

Country Link
US (1) US5335376A (en)
EP (1) EP0428634B1 (en)
DE (2) DE3912810A1 (en)
WO (1) WO1990010428A1 (en)

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ES2885435T3 (en) 2001-04-30 2021-12-13 Activemap Llc Interactive map submitted electronically
US6745413B2 (en) 2002-08-08 2004-06-08 Precision Design Concepts, Llc Hydrotherapy jet system having fluid line quick connector adapted for multiple sizes of jet fixture bodies and other plumbing fittings
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Also Published As

Publication number Publication date
EP0428634A1 (en) 1991-05-29
DE59001306D1 (en) 1993-06-03
WO1990010428A1 (en) 1990-09-20
DE3912810A1 (en) 1990-09-13
US5335376A (en) 1994-08-09
DE3912810C2 (en) 1991-01-10

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