EP2072930A2 - Heatable bath or shower tray - Google Patents

Heatable bath or shower tray Download PDF

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Publication number
EP2072930A2
EP2072930A2 EP08106009A EP08106009A EP2072930A2 EP 2072930 A2 EP2072930 A2 EP 2072930A2 EP 08106009 A EP08106009 A EP 08106009A EP 08106009 A EP08106009 A EP 08106009A EP 2072930 A2 EP2072930 A2 EP 2072930A2
Authority
EP
European Patent Office
Prior art keywords
bath
shower tray
aluminum
sheet
heating
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.)
Granted
Application number
EP08106009A
Other languages
German (de)
French (fr)
Other versions
EP2072930A3 (en
EP2072930B1 (en
Inventor
Tobias Benzler
Reinhard Pritzlaff
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.)
Speira GmbH
Original Assignee
Hydro Aluminium Deutschland GmbH
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Filing date
Publication date
Application filed by Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Publication of EP2072930A2 publication Critical patent/EP2072930A2/en
Publication of EP2072930A3 publication Critical patent/EP2072930A3/en
Application granted granted Critical
Publication of EP2072930B1 publication Critical patent/EP2072930B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/02—Baths
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/28—Showers or bathing douches
    • A47K3/40—Pans or trays
    • 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
    • A61H33/6005—Special constructive structural details of the bathtub, e.g. of the walls or supporting structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • B21D26/055—Blanks having super-plastic properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/54—Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
    • 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
    • A61H2201/02—Characteristics of apparatus not provided for in the preceding codes heated or cooled
    • A61H2201/0207—Characteristics of apparatus not provided for in the preceding codes heated or cooled heated
    • 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
    • A61H2201/02—Characteristics of apparatus not provided for in the preceding codes heated or cooled
    • A61H2201/0221—Mechanism for heating or cooling
    • A61H2201/0242—Mechanism for heating or cooling by a fluid circulating in the apparatus
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C2001/005—Installations allowing recovery of heat from waste water for warming up fresh water

Definitions

  • the invention relates to a heatable bath or shower tray with means for heating and means for connection to media guides a heater.
  • the invention relates to a method for producing a bath or shower tray.
  • the present invention seeks to propose a heated bath or shower tray, which is easier to produce, has a lower weight and at the same time ensures better heat transfer to the bath water. Moreover, it is an object of the present invention to propose a simple and cost-effective production method for the bath or shower tray according to the invention.
  • the above-described object is achieved in that the bath or shower tray made of aluminum or an aluminum alloy.
  • Aluminum or aluminum alloys have a significantly lower weight and at the same time have much higher coefficients of thermal conductivity than conventional steel bath or shower trays.
  • the necessary strength of the bath or shower trays are also provided by aluminum or aluminum alloys.
  • the bath or shower tray according to the invention thus ensures on the one hand a significantly reduced weight while improving heat transfer to the bath or shower water. Preference is given to using aluminum-magnesium alloys, since these are distinguished by good formability and high strength.
  • the bath or shower tray according to the invention is made of at least one superplastic deformable sheet of aluminum or an aluminum alloy.
  • the superplastic deformation of sheets enables very high degrees of deformation and thus correspondingly great changes in shape to be achieved with only a few work steps.
  • the superplastic deformability is basically no property of the aluminum alloy, but rather the structural adjustment of the aluminum alloy. With suitable microstructure adjustment, almost all aluminum alloys, but in particular high magnesium-rich aluminum alloys, can be deformed superplastically. It is a hot forming, which is carried out at about 0.5 to 0.65 times the melting temperature.
  • the superplastic deformation can be achieved in a simple manner, the high degree of deformation, which are necessary for the production of bath or shower trays, with few process steps.
  • means for heating according to a first embodiment of the invention can be made available by heating channels or pipes applied to the bath or shower tray.
  • heating channels or pipes applied to the bath or shower tray can be used in this way to the medium for heating adapted Schukanäle or pipes, for example KunststoffMapkanäle or pipes, alternatively copper pipes.
  • the bath or shower tray according to the invention can be further improved that another deep-drawn sheet of aluminum or an aluminum alloy is provided, which connected to the back of the bath or shower tray the heating channels or pipes of the means for heating the bath or shower tray forms.
  • the heating channels or tubes are provided in one step at the same time when connecting the two sheets available.
  • the second sheet is connected to the first sheet using a soldering process.
  • the second sheet is equipped with a plated aluminum solder layer.
  • the superplastic deformable first and / or second sheet formed from at least one core layer with a magnesium-free cladding on the one hand can be ensured that an enamel layer can be applied very well to the bath or shower tray.
  • it allows the use of very good superplastic deformable aluminum alloys as a core layer with a very high strength, without reducing the adhesive properties of a later applied enamel layer.
  • cladding layers of an aluminum alloy with a magnesium content of less than 100 ppm are considered to be magnesium-free.
  • the alloy types AA 1xxx, AA 8xxx or alternatively also AA 3xxx with an Mg content of less than 100 ppm are therefore preferably used for the cladding layer.
  • the bath or shower tray is insulated on the back.
  • the bath or shower tray is preferably embedded in an insulating body consisting of a heat-insulating material.
  • the bath or shower tray can also be coated on the back with a heat insulating material.
  • a heat-insulating materials are, for example, polystyrene or other plastics, which a corresponding have poor heat conduction. But there are also other substances with low heat conductivity used. Due to the high heat conduction of the aluminum sheets of the bath or shower tray only small amounts of heat are needed to heat the bath or shower tray with good insulation. In addition, the energy consumption for warming the bath or shower tray can thereby be significantly reduced, so that, for example, a connection of the bath or shower tray in the return of a heating system is conceivable.
  • an enamel layer is preferably provided.
  • the above-mentioned object is procedurally achieved in that at least a first sheet consisting of aluminum or an aluminum alloy is formed by superplastic forming in a bath or shower tray.
  • the superplastic forming allows very high degrees of deformation, so that in a few steps from a sheet metal a bath or shower tray can be formed.
  • a sheet with a superplastic deformable core layer and a magnesium-free cladding layer to use.
  • the core layer of the sheet is preferably rich in magnesium in order to easily achieve a superplastic forming and at the same time by a curing process the highest possible strengths in the formed state.
  • an enamel layer adheres better to nearly magnesium-free aluminum alloys, so that over the magnesium-free cladding layer, which has a magnesium content of less than 100 ppm, a very good adhesion of the enamel layer on the surface of the formed aluminum sheet can be achieved.
  • the means for heating the bath or shower tray can be provided in an economical manner by the fact that a second sheet of aluminum or an aluminum alloy is reshaped and the second sheet is firmly bonded to the back of the bath or shower tray, wherein the back of the bath or shower tray together with the formed second sheet forms the means for heating.
  • the second sheet of aluminum or an aluminum alloy merely needs to be reshaped in such a way that when connecting the second sheet to the first sheet already formed for the bath or shower tray, heating channels or pipes are formed on both sides by both sheets. These can then be connected via the connection means with the media guide a conventional heater.
  • the back of a suitably shaped plastic plate is used, which For example, using an ultrasonic welding is applied to the back of the bath or shower tray.
  • the installation of heating pipes or heating channels on the back of the bath or shower tray is thus eliminated. Due to the good heat conduction properties of aluminum, the connection in the return of a heating device is already sufficient to achieve sufficient heating.
  • the bath or shower tray made from the first metal sheet is materially connected by welding or soldering to the rear-provided, deformed second metal sheet.
  • Welding such as brazing, allows for an economic, material bond between the two formed sheets, so that the cost of producing the heated bath or shower tray can be minimized.
  • Both sheets may consist of, for example, a magnesium-rich core material and a magnesium-poor cladding material.
  • Fig. 1 is first in a sectional view a sheet metal 1 of an embodiment of a bath or shower tray according to the invention to recognize, which consists of a core layer 2, a cladding layer 3 and an enamel layer 4.
  • a core layer 2 a cladding layer 3 and an enamel layer 4.
  • the cladding layer 3 is usually almost free of magnesium, ie it contains less than 100 ppm of magnesium. Magnesium interferes with the coating of aluminum with an enamel layer 4.
  • the magnesium-free plating layer 3 effectively prevents diffusion of magnesium to the surface of the plating layer 3, so that the enamel layer 4 adheres better to the aluminum sheet 1.
  • Fig. 2a now shows an embodiment of a heatable bath 5 according to the invention in a schematic side view, with circulating heating channels 6 are indicated.
  • the bathtub 5 according to the invention also has connection means 7 for connecting heating media of a heating device.
  • the connecting means 7 are usually formed according to the connection means of other heating means, such as radiators, so that the bath or shower tray 5 according to the invention can be easily connected to the water cycle of a heater.
  • Fig. 2b shows an embodiment of a heated shower tray 12 according to the invention in a schematic side view.
  • the heating channels 6 and connecting means 7 are similar to those from the Fig. 2a .
  • the exemplary shower tray 12 off Fig. 2b differs from the exemplary bathtub 5 Fig. 2a essentially by the lower edge height and by the approximately rectangular orientation of the tub bottom and side wall to each other.
  • a heated heating medium for example the hot water of a heater
  • the walls of the bathtub 5 or shower tray 12 are heated and the filled water remains warm for a long time.
  • the circulating run heating channels 6 are in the Fig. 2a, b merely indicated and are formed, for example by connecting the first already converted to the shower tray or bathtub sheet metal with the second sheet 8.
  • Fig. 3a, b is a schematic sectional view of the in the Fig. 2a, b illustrated embodiments is.
  • the sheet 8 has been converted accordingly to form heating channels 6 and connected to the sheet 1 cohesively, for example by welding or soldering.
  • the heating channels 6 are formed, through which a heating medium is performed.
  • the back plate and the use of steel or a correspondingly shaped plastic plate is conceivable.
  • a body 9 is shown made of insulating material in which the bath 5 and the shower tray 12 is embedded in order to minimize heat loss.
  • the bathtub 5 or the shower tray 12 may also be coated with heat insulating material only on the back.
  • first metal sheet 1 is superplasticly deformable, formed from aluminum or an aluminum alloy, it is particularly advantageous to mold structures into the region of the metal sheet 1, which later acts as the bottom of the bath or shower tray 5, 12.
  • tears or lens structures can be incorporated into the floor, which reduce the risk of slipping on the floor and increase the tread resistance.
  • a second embodiment of the invention, heated bath or shower tray is in the Fig. 4a, b shown in a schematic sectional view.
  • the sectional view of the second embodiment of a bathtub according to the invention 10 or shower tray 13 separate heating pipes or channels 11 can be seen, which are applied to the rear of the bath 10 and shower tray 13 formed sheet metal 1. Due to the good heat conduction of aluminum, the bath 10 of the invention or the shower tray 13, the metal sheet 1 of the bath 10 or shower tray 13 is homogeneously heated in this embodiment, so that in the bath 10 or shower tray 13 filled water retains its heat longer.
  • the bathtub 10 or shower tray 13 according to the second embodiment may also be embedded in an insulating body 9.
  • the heatable bath 5, 10 or the heated shower tray 12, 13 generally act as a radiator with which the ambient air is heated, for example, when there is no water in the tub.
  • the installation of separate radiator in a room in which one of the bath or shower trays 5, 10, 12, 13 according to the invention is optionally completely eliminated.

Abstract

The tub has a heating channel or pipe for heating the tub, and a connecting unit for connecting the tub to medium guides of a heater. A super plastic deformable sheet metal plate (1) is made of aluminum or aluminum alloy, where the tub is isolated in its rear side and is made of aluminum or aluminum alloy. Another sheet metal plate made of aluminum or aluminum alloy is connected with the rear side of the tub for forming the heating channel or pipe. The plates have a core layer (2) with a magnesium free coated layer (3), and an enamel layer (4) is provided. An independent claim is also included for a method for manufacturing a bath or shower tub.

Description

Die Erfindung betrifft eine beheizbare Bade- oder Duschwanne mit Mitteln zum Beheizen und Mitteln zum Anschließen an Medienführungen einer Heizvorrichtung. Darüber hinaus betrifft die Erfindung ein Verfahren zur Herstellung einer Bade- oder Duschwanne.The invention relates to a heatable bath or shower tray with means for heating and means for connection to media guides a heater. In addition, the invention relates to a method for producing a bath or shower tray.

Beheizbare Badewannen sind aus dem Stand der Technik bereits bekannt. So offenbart die deutsche Patentschrift DE 1 106 452 eine beheizbare Badewanne für Heilbäder, deren Heizfläche beliebig groß gemacht werden kann, ohne dass es zu Deformationen oder Beschädigungen bzw. Undichtigkeiten des Badewannenkörpers kommt. Die bereits bekannte beheizbare Badewanne weist hierzu an den Seiten bzw. an der Bodenfläche angebrachte Heizmäntel auf, welche aus rostfreiem Stahlblech bestehen. Problematisch bei der bekannten beheizbaren Badewanne ist nun, dass diese aufgrund der Verwendung von Stahl ein relativ hohes Gewicht aufweist. Stahl weist zudem keine optimalen Wärmeleitkoeffizienten auf, so dass die Wärmeübertragung an das Bade- oder Duschwasser nicht optimal ist. Darüber hinaus ist der Aufbau der bekannten, beheizbaren Badewanne komplex und die Herstellung damit entsprechend kostenintensiv.Heated baths are already known from the prior art. Thus, the German patent publication DE 1 106 452 a heatable bathtub for spas, whose heating surface can be made arbitrarily large, without causing deformation or damage or leakage of the bath tub body. The already known heatable bath has for this purpose on the sides or on the bottom surface mounted heating jackets, which consist of stainless steel. The problem with the known heatable bath is now that it has a relatively high weight due to the use of steel. In addition, steel has no optimum heat transfer coefficient, so that the heat transfer to the bath or shower water is not optimal. In addition, the structure of the known, heated bath complex and the production is therefore correspondingly expensive.

Von diesem Stand der Technik ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine beheizbare Bade- oder Duschwanne vorzuschlagen, welche einfacher herstellbar ist, ein geringeres Gewicht aufweist und gleichzeitig eine bessere Wärmeübertragung an das Badewasser gewährleistet. Darüber hinaus ist es eine Aufgabe der vorliegenden Erfindung ein einfaches und kostengünstiges Herstellverfahren für die erfindungsgemäße Bade- oder Duschwanne vorzuschlagen.Based on this prior art, the present invention seeks to propose a heated bath or shower tray, which is easier to produce, has a lower weight and at the same time ensures better heat transfer to the bath water. Moreover, it is an object of the present invention to propose a simple and cost-effective production method for the bath or shower tray according to the invention.

Gemäß einer ersten Lehre der vorliegenden Erfindung wird die oben aufgezeigte Aufgabe dadurch gelöst, dass die Bade- oder Duschwanne aus Aluminium oder einer Aluminiumlegierung besteht.According to a first teaching of the present invention, the above-described object is achieved in that the bath or shower tray made of aluminum or an aluminum alloy.

Aluminium oder Aluminiumlegierungen haben ein wesentlich geringeres Gewicht und weisen gleichzeitig viel größere Wärmeleitkoeffizienten auf als konventionelle Stahlbade- oder -duschwannen auf. Die notwendigen Festigkeiten der Bade- oder Duschwannen werden durch Aluminium oder Aluminiumlegierungen ebenfalls bereitgestellt. Die erfindungsgemäße Bade- oder Duschwanne gewährleistet damit einerseits ein deutlich verringertes Gewicht bei gleichzeitig verbesserter Wärmeübertragung an das Bade- oder Duschwasser. Bevorzugt werden Aluminium-Magnesium-Legierungen verwendet, da diese sich durch eine gute Umformbarkeit und eine hohe Festigkeit auszeichnen.Aluminum or aluminum alloys have a significantly lower weight and at the same time have much higher coefficients of thermal conductivity than conventional steel bath or shower trays. The necessary strength of the bath or shower trays are also provided by aluminum or aluminum alloys. The bath or shower tray according to the invention thus ensures on the one hand a significantly reduced weight while improving heat transfer to the bath or shower water. Preference is given to using aluminum-magnesium alloys, since these are distinguished by good formability and high strength.

Die erfindungsgemäße Bade- oder Duschwanne ist aus mindestens einem superplastisch verformbaren Blech aus Aluminium oder einer Aluminiumlegierung hergestellt. Die superplastische Verformung von Blechen ermöglicht, dass sehr hohe Umformgrade und damit entsprechend starke Formänderungen mit nur wenigen Arbeitsschritten erzielt werden können. Die superplastische Verformbarkeit ist grundsätzlich keine Eigenschaft der Aluminiumlegierung, sondern vielmehr der Gefügeeinstellung der Aluminiumlegierung. Bei geeigneter Gefügeeinstellung lassen sich nahezu alle Aluminiumlegierungen, insbesondere aber hoch magnesiumreiche Aluminiumlegierungen superplastisch verformen. Es handelt sich um eine Warmumformung, welche bei etwa 0,5- bis 0,65-facher Schmelztemperatur durchgeführt wird. Durch die superplastische Verformung lassen sich auf einfache Weise die hohen Umformgrade, welche zur Herstellung von Bade- oder Duschwannen notwendig sind, mit wenigen Verfahrensschritten erreichen.The bath or shower tray according to the invention is made of at least one superplastic deformable sheet of aluminum or an aluminum alloy. The superplastic deformation of sheets enables very high degrees of deformation and thus correspondingly great changes in shape to be achieved with only a few work steps. The superplastic deformability is basically no property of the aluminum alloy, but rather the structural adjustment of the aluminum alloy. With suitable microstructure adjustment, almost all aluminum alloys, but in particular high magnesium-rich aluminum alloys, can be deformed superplastically. It is a hot forming, which is carried out at about 0.5 to 0.65 times the melting temperature. The superplastic deformation can be achieved in a simple manner, the high degree of deformation, which are necessary for the production of bath or shower trays, with few process steps.

Auf besonders einfache Art und Weise können gemäß einer ersten Ausführungsform der Erfindung Mittel zum Beheizen dadurch zur Verfügung gestellt werden, dass auf die Bade- oder Duschwanne aufgebrachten Heizkanäle oder -rohre vorgesehen sind. Beispielsweise können auf diese Weise an das Medium zum Beheizen angepasste Heizkanäle oder -rohre verwendet werden, beispielsweise Kunststoffheizkanäle oder -rohre, alternativ auch Kupferrohre.In a particularly simple manner means for heating according to a first embodiment of the invention can be made available by heating channels or pipes applied to the bath or shower tray. For example, can be used in this way to the medium for heating adapted Heizkanäle or pipes, for example Kunststoffheizkanäle or pipes, alternatively copper pipes.

Im Hinblick auf eine möglichst kostengünstige Fertigung kann die erfindungsgemäße Bade- oder Duschwanne dadurch weiterverbessert werden, dass ein weiteres tiefgezogenes Blech aus Aluminium oder einer Aluminiumlegierung vorgesehen ist, welches mit der Rückseite der Bade- oder Duschwanne verbunden die Heizkanäle oder -rohre der Mittel zum Beheizen der Bade- oder Duschwanne bildet. Auf diese Weise werden beim Verbinden der beiden Bleche gleichzeitig alle Heizkanäle bzw. -rohre in einem Arbeitsschritt zur Verfügung gestellt. Vorzugsweise wird das zweite Blech unter Verwendung eines Lötverfahren mit dem ersten Blech verbunden. Hierzu ist es vorteilhaft, wenn das zweite Blech mit einer aufplattierten Aluminiumlotschicht ausgestattet ist.With regard to the most cost-effective production, the bath or shower tray according to the invention can be further improved that another deep-drawn sheet of aluminum or an aluminum alloy is provided, which connected to the back of the bath or shower tray the heating channels or pipes of the means for heating the bath or shower tray forms. In this way, all the heating channels or tubes are provided in one step at the same time when connecting the two sheets available. Preferably, the second sheet is connected to the first sheet using a soldering process. For this purpose, it is advantageous if the second sheet is equipped with a plated aluminum solder layer.

Wird das superplastisch verformbare erste und/oder zweite Blech aus mindestens einer Kernschicht mit einer magnesiumfreien Plattierschicht gebildet, kann einerseits gewährleistet werden, dass eine Emailleschicht sehr gut auf die Bade- oder Duschwanne aufgebracht werden kann. Andererseits ermöglicht es den Einsatz von sehr gut superplastisch verformbaren Aluminiumlegierungen als Kernschicht mit einer sehr hohen Festigkeit, ohne die Hafteigenschaften einer später aufzubringenden Emailleschicht zu verringern. Als magnesiumfrei werden im Sinne der vorliegenden Erfindungen Plattierschichten aus einer Aluminiumlegierung mit einem Magnesiumgehalt von weniger als 100 ppm angesehen. Als Aluminiumlegierungen werden deshalb die Legierungstypen AA 1xxx, AA 8xxx oder alternativ auch AA 3xxx mit einem Mg-Gehalt von weniger als 100 ppm bevorzugt für die Plattierschicht verwendet.If the superplastic deformable first and / or second sheet formed from at least one core layer with a magnesium-free cladding, on the one hand can be ensured that an enamel layer can be applied very well to the bath or shower tray. On the other hand, it allows the use of very good superplastic deformable aluminum alloys as a core layer with a very high strength, without reducing the adhesive properties of a later applied enamel layer. For the purposes of the present invention, cladding layers of an aluminum alloy with a magnesium content of less than 100 ppm are considered to be magnesium-free. As aluminum alloys, the alloy types AA 1xxx, AA 8xxx or alternatively also AA 3xxx with an Mg content of less than 100 ppm are therefore preferably used for the cladding layer.

Verringerte Wärmeverluste können gemäß einer nächsten Ausführungsform der erfindungsgemäßen Bade- oder Duschwanne dadurch erreicht werden, dass die Bade- oder Duschwanne rückseitig isoliert ist. Vorzugsweise ist sie hierzu in einen Isolierkörper bestehend aus einem Wärme isolierenden Material eingebettet. Die Bade- oder Duschwanne kann aber auch rückseitig mit einem Wärme isolierenden Material beschichtet sein. Als Wärme isolierende Materialien eignen sich beispielsweise Styropor oder andere Kunststoffe, welche eine entsprechend schlechte Wärmeleitung aufweisen. Es sind aber auch andere Stoffe mit geringer Wärmeleitung einsetzbar. Aufgrund der hohen Wärmeleitung der Aluminiumbleche der Bade- oder Duschwanne werden bei guter Isolierung lediglich geringe Wärmemengen zur Aufwärmung der Bade- oder Duschwanne benötigt. Darüber hinaus kann der Energieverbrauch zum Aufwärmen der Bade- oder Duschwanne hierdurch deutlich reduziert werden, so dass beispielsweise ein Anschluss der Bade- oder Duschwanne im Rücklauf eines Heizungssystems denkbar ist.Reduced heat losses can be achieved according to a next embodiment of the bath or shower tray according to the invention characterized in that the bath or shower tray is insulated on the back. For this purpose, it is preferably embedded in an insulating body consisting of a heat-insulating material. The bath or shower tray can also be coated on the back with a heat insulating material. As a heat-insulating materials are, for example, polystyrene or other plastics, which a corresponding have poor heat conduction. But there are also other substances with low heat conductivity used. Due to the high heat conduction of the aluminum sheets of the bath or shower tray only small amounts of heat are needed to heat the bath or shower tray with good insulation. In addition, the energy consumption for warming the bath or shower tray can thereby be significantly reduced, so that, for example, a connection of the bath or shower tray in the return of a heating system is conceivable.

Um die Oberfläche der Bade- oder Duschwanne kratzfester und langlebiger auszugestalten, ist vorzugsweise eine Emailleschicht vorgesehen.To make the surface of the bath or shower tray scratch resistant and durable, an enamel layer is preferably provided.

Gemäß einer zweiten Lehre der vorliegenden Erfindung wird die oben aufgezeigte Aufgabe verfahrensmäßig dadurch gelöst, dass mindestens ein erstes Blech bestehend aus Aluminium oder einer Aluminiumlegierung durch superplastisches Umformen in eine Bade- oder Duschwanne umgeformt wird. Das superplastische Umformen ermöglicht sehr hohe Umformgrade, so dass in wenigen Arbeitsschritten aus einem Blech eine Bade- oder Duschwanne geformt werden kann. Zudem ergeben sich deutliche Vorteile der erfindungsgemäßen Bade- oder Duschwanne im Hinblick auf deren Gewicht und Wärmeübertragung an das eingelassene Wasser.According to a second teaching of the present invention, the above-mentioned object is procedurally achieved in that at least a first sheet consisting of aluminum or an aluminum alloy is formed by superplastic forming in a bath or shower tray. The superplastic forming allows very high degrees of deformation, so that in a few steps from a sheet metal a bath or shower tray can be formed. In addition, there are significant advantages of the bath or shower tray according to the invention in terms of their weight and heat transfer to the sunken water.

Um die Haftung einer Emailleschicht auf der Bade- oder Duschwanne zu verbessern, ist es gemäß einer nächsten Ausgestaltung des erfindungsgemäßen Verfahrens vorteilhaft, ein Blech mit einer superplastisch verformbaren Kernschicht und einer magnesiumfreien Plattierschicht zu verwenden.In order to improve the adhesion of an enamel layer on the bath or shower tray, it is advantageous according to a next embodiment of the method according to the invention, a sheet with a superplastic deformable core layer and a magnesium-free cladding layer to use.

Die Kernschicht des Blechs ist vorzugsweise magnesiumreich, um auf einfache Weise ein superplastisches Umformen und gleichzeitig durch einen Aushärtungsprozess möglichst hohe Festigkeiten im umgeformten Zustand zu erreichen. Eine Emailleschicht haftet jedoch besser auf nahezu magnesiumfreien Aluminiumlegierungen, so dass über die magnesiumfreie Plattierschicht, welche einen Magnesiumgehalt von weniger als 100 ppm aufweist, eine sehr gute Haftung der Emailleschicht auf der Oberfläche des umgeformten Aluminiumblechs erzielt werden kann.The core layer of the sheet is preferably rich in magnesium in order to easily achieve a superplastic forming and at the same time by a curing process the highest possible strengths in the formed state. However, an enamel layer adheres better to nearly magnesium-free aluminum alloys, so that over the magnesium-free cladding layer, which has a magnesium content of less than 100 ppm, a very good adhesion of the enamel layer on the surface of the formed aluminum sheet can be achieved.

Wie bereits ausgeführt, können auf wirtschaftliche Weise die Mittel zum Beheizen der Bade- oder Duschwanne dadurch zur Verfügung gestellt werden, dass ein zweites Blech aus Aluminium oder einer Aluminiumlegierung umgeformt wird und das zweite Blech mit der Rückseite der Bade- oder Duschwanne stoffschlüssig verbunden wird, wobei die Rückseite der Bade- oder Duschwanne zusammen mit dem umgeformten zweiten Blech die Mittel zum Beheizen bildet. Das zweite Blech aus Aluminium oder einer Aluminiumlegierung muss hierzu lediglich derart umgeformt werden, dass beim Verbinden des zweiten Blechs mit dem bereits zur Bade- oder Duschwanne umgeformten ersten Blechs rückseitig Heizkanäle bzw. -rohre durch beide Bleche gebildet werden. Diese können dann über die Anschlussmittel mit der Medienführung einer konventionellen Heizvorrichtung angeschlossen werden. Denkbar ist aber auch, dass rückseitig eine entsprechend geformte Kunststoffplatte verwendet wird, welche beispielsweise unter Verwendung eines Ultraschallschweißens auf die Rückseite der Bade- oder Duschwanne aufgebracht wird. Die Montage von Heizrohren oder Heizkanälen an der Rückseite der Bade- oder Duschwanne entfällt damit. Aufgrund der guten Wärmeleitungseigenschaften von Aluminium reicht der Anschluss im Rücklauf einer Heizvorrichtung bereits aus, um eine ausreichende Erwärmung zu erzielen.As already stated, the means for heating the bath or shower tray can be provided in an economical manner by the fact that a second sheet of aluminum or an aluminum alloy is reshaped and the second sheet is firmly bonded to the back of the bath or shower tray, wherein the back of the bath or shower tray together with the formed second sheet forms the means for heating. For this purpose, the second sheet of aluminum or an aluminum alloy merely needs to be reshaped in such a way that when connecting the second sheet to the first sheet already formed for the bath or shower tray, heating channels or pipes are formed on both sides by both sheets. These can then be connected via the connection means with the media guide a conventional heater. It is also conceivable that the back of a suitably shaped plastic plate is used, which For example, using an ultrasonic welding is applied to the back of the bath or shower tray. The installation of heating pipes or heating channels on the back of the bath or shower tray is thus eliminated. Due to the good heat conduction properties of aluminum, the connection in the return of a heating device is already sufficient to achieve sufficient heating.

Vorzugsweise wird die aus dem ersten Blech hergestellte Bade- oder Duschwanne mit dem rückseitig vorgesehenen, umgeformten zweiten Blech durch Verschweißen oder Löten stoffschlüssig verbunden. Das Schweißen, wie das Löten ermöglichen eine wirtschaftliche, stoffschlüssige Verbindung zwischen den beiden umgeformten Blechen, so dass die Kosten zur Herstellung der beheizbaren Bade- oder Duschwanne minimiert werden können. Beide Bleche können aus einem beispielsweise magnesiumreichen Kernwerkstoff und einem magnesiumarmen Plattierwerkstoff bestehen.Preferably, the bath or shower tray made from the first metal sheet is materially connected by welding or soldering to the rear-provided, deformed second metal sheet. Welding, such as brazing, allows for an economic, material bond between the two formed sheets, so that the cost of producing the heated bath or shower tray can be minimized. Both sheets may consist of, for example, a magnesium-rich core material and a magnesium-poor cladding material.

Schließlich kann zur Verbesserung des Wärmeverhaltens der Bade- oder Duschwanne, diese in einen Wärme isolierenden Körper eingebettet oder rückseitig ein Wärme isolierendes Material aufgebracht werden.Finally, to improve the thermal behavior of the bath or shower tray, this embedded in a heat-insulating body or back a heat insulating material can be applied.

Es gibt nun eine Vielzahl von Möglichkeiten die erfindungsgemäße beheizbare Bade- oder Duschwanne bzw. das erfindungsgemäße Verfahren zur Herstellung einer beheizbaren Bade- oder Duschwanne auszugestalten und weiterzubilden. Hierzu wird verwiesen einerseits auf die den Patentansprüchen 1 und 7 nachgeordneten Patentansprüche, andererseits auf die Beschreibung von Ausführungsbeispielen in Verbindung mit der Zeichnung. Die Zeichnung zeigt in

Fig. 1
in einer schematischen Schnittansicht ein aus mehreren Schichten bestehendes Blech, welches gemäß einem Ausführungsbeispiel der Erfindung für die Herstellung einer Bade- oder Duschwanne verwendet wird,
Fig. 2a,b
eine schematische Seitenansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen Badewanne ohne Isolierkörper bzw. einer erfindungsgemäßen Duschwanne ohne Isolierkörper,
Fig. 3a,b
in einer schematischen Schnittansicht die Ausführungsbeispiele aus den Fig. 2a,b eingebettet in einem Körper aus isolierendem Material und
Fig. 4a,b
eine schematische Schnittansicht eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Badewanne bzw. einer erfindungsgemäßen Duschwanne.
There are now a variety of ways the inventive heated bath or shower tray or the inventive method for producing a heated bath or shower tray to design and develop. Reference is made on the one hand to the claims subordinate to claims 1 and 7, on the other hand to the description of Embodiments in conjunction with the drawing. The drawing shows in
Fig. 1
in a schematic sectional view of a multi-layer sheet metal, which is used according to an embodiment of the invention for the production of a bath or shower tray,
Fig. 2a, b
a schematic side view of a first embodiment of a bathtub according to the invention without insulator or a shower tray according to the invention without insulator,
Fig. 3a, b
in a schematic sectional view of the embodiments of the Fig. 2a, b embedded in a body of insulating material and
Fig. 4a, b
a schematic sectional view of a second embodiment of a bathtub according to the invention or a shower tray according to the invention.

In Fig. 1 ist zunächst in einer Schnittansicht ein Blech 1 eines Ausführungsbeispiels einer erfindungsgemäßen Bade- oder Duschwanne zu erkennen, welches aus einer Kernschicht 2, einer Plattierschicht 3 und einer Emailleschicht 4 besteht. Wie bereits ausgeführt, werden vorzugsweise magnesiumreiche Kernschichten verwendet, um eine superplastische Umformbarkeit mit sehr hohen Festigkeitswerten der fertigen Badewanne zu kombinieren. Die Plattierschicht 3 ist üblicherweise nahezu magnesiumfrei, d.h. sie enthält weniger als 100 ppm Magnesium. Magnesium wirkt störend bei der Beschichtung von Aluminium mit einer Emailleschicht 4. Durch die magnesiumfreie Plattierschicht 3 wird eine Diffusion von Magnesium an die Oberfläche der Plattierschicht 3 effektiv verhindert, so dass die Emailleschicht 4 auf dem Aluminiumblech 1 besser haftet.In Fig. 1 is first in a sectional view a sheet metal 1 of an embodiment of a bath or shower tray according to the invention to recognize, which consists of a core layer 2, a cladding layer 3 and an enamel layer 4. As already stated, magnesium-rich core layers are preferably used in order to achieve superplastic formability with very high plasticity Strength values of the finished bathtub to combine. The cladding layer 3 is usually almost free of magnesium, ie it contains less than 100 ppm of magnesium. Magnesium interferes with the coating of aluminum with an enamel layer 4. The magnesium-free plating layer 3 effectively prevents diffusion of magnesium to the surface of the plating layer 3, so that the enamel layer 4 adheres better to the aluminum sheet 1.

Fig. 2a zeigt nun ein Ausführungsbeispiel einer erfindungsgemäßen, beheizbaren Badewanne 5 in einer schematischen Seitenansicht, wobei umlaufende Heizkanäle 6 angedeutet sind. Die erfindungsgemäße Badewanne 5 weist zudem noch Anschlussmittel 7 zum Anschließen von Heizmedien einer Heizvorrichtung auf. Die Anschlussmittel 7 sind üblicherweise entsprechend der Anschlussmittel anderer Heizmittel, beispielsweise Heizkörper ausgebildet, so dass die erfindungsgemäße Bade- oder Duschwanne 5 einfach an den Wasserkreislauf einer Heizung angeschlossen werden kann. Fig. 2a now shows an embodiment of a heatable bath 5 according to the invention in a schematic side view, with circulating heating channels 6 are indicated. The bathtub 5 according to the invention also has connection means 7 for connecting heating media of a heating device. The connecting means 7 are usually formed according to the connection means of other heating means, such as radiators, so that the bath or shower tray 5 according to the invention can be easily connected to the water cycle of a heater.

Fig. 2b zeigt ein Ausführungsbeispiel einer erfindungsgemäßen beheizbaren Duschwanne 12 in einer schematischen Seitenansicht. Die Heizkanäle 6 und Anschlussmittel 7 ähneln denen aus der Fig. 2a. Die beispielhafte Duschwanne 12 aus Fig. 2b unterscheidet sich von der beispielhaften Badewanne 5 aus Fig. 2a im Wesentlichen durch die geringere Randhöhe und durch die annähernd rechtwinklige Ausrichtung von Wannenboden und Seitenwandung zueinander. Fig. 2b shows an embodiment of a heated shower tray 12 according to the invention in a schematic side view. The heating channels 6 and connecting means 7 are similar to those from the Fig. 2a , The exemplary shower tray 12 off Fig. 2b differs from the exemplary bathtub 5 Fig. 2a essentially by the lower edge height and by the approximately rectangular orientation of the tub bottom and side wall to each other.

Wird über die Anschlussmittel 7 ein aufgewärmtes Heizmedium, beispielsweise das Warmwasser einer Heizung, in die erfindungsgemäße Badewanne 5 bzw. die erfindungsgemäße Duschwanne 12 eingeleitet, so erwärmen sich die Wände der Badewanne 5 bzw. Duschwanne 12 und das eingefüllte Wasser bleibt über längere Zeit warm. Die umlaufend geführten Heizkanäle 6 sind in den Fig. 2a,b lediglich angedeutet und werden beispielsweise durch Verbinden des ersten bereits zur Duschwanne bzw. Badewanne umgeformten Blechs mit dem zweiten Blech 8 gebildet. Durch diese Ausführungsform entfällt bei der Montage das Anbringen bzw. Anschweißen oder -löten von separaten Heizrohren bzw. -kanälen.If, via the connecting means 7, a heated heating medium, for example the hot water of a heater, is introduced into the bathtub 5 or the shower tray 12 according to the invention, the walls of the bathtub 5 or shower tray 12 are heated and the filled water remains warm for a long time. The circulating run heating channels 6 are in the Fig. 2a, b merely indicated and are formed, for example by connecting the first already converted to the shower tray or bathtub sheet metal with the second sheet 8. By this embodiment eliminates the mounting or welding or soldering of separate heating pipes or channels during assembly.

Dies ist besser in den Fig. 3a,b zu sehen, welche eine schematische Schnittansicht der in den Fig. 2a,b dargestellten Ausführungsbeispiele ist. Das Blech 8 ist zur Bildung von Heizkanälen 6 entsprechend umgeformt worden und mit dem Blech 1 stoffschlüssig, beispielsweise durch Verschweißen oder Löten verbunden. Über die Verbindungsstellen zwischen dem ersten zur Badewanne 5 bzw. Duschwanne 12 umgeformten Blech 1 und dem zweiten Blech 8, welches vorzugsweise aus einer Aluminium-Magnesium-Legierung gebildet ist, werden die Heizkanäle 6 gebildet, durch welche ein Heizmedium geführt wird. Für das rückseitige Blech ist auch der Einsatz von Stahl oder einer entsprechend geformten Kunststoffplatte denkbar. Zusätzlich ist in den Fig. 3a,b ein Körper 9 aus isolierendem Material dargestellt, in welchen die Badewanne 5 bzw. die Duschwanne 12 eingebettet ist, um Wärmeverluste zu minimieren. Die Badewanne 5 oder die Duschwanne 12 kann aber auch mit Wärme isolierendem Material lediglich rückseitig beschichtet sein.This is better in the Fig. 3a, b to see which is a schematic sectional view of the in the Fig. 2a, b illustrated embodiments is. The sheet 8 has been converted accordingly to form heating channels 6 and connected to the sheet 1 cohesively, for example by welding or soldering. About the junctions between the first to the bath 5 and shower tray 12 formed sheet metal 1 and the second plate 8, which is preferably formed of an aluminum-magnesium alloy, the heating channels 6 are formed, through which a heating medium is performed. For the back plate and the use of steel or a correspondingly shaped plastic plate is conceivable. In addition, in the Fig. 3a, b a body 9 is shown made of insulating material in which the bath 5 and the shower tray 12 is embedded in order to minimize heat loss. The bathtub 5 or the Shower tray 12 may also be coated with heat insulating material only on the back.

Ist das erste Blech 1 superplastisch verformbar aus Aluminium oder einer Aluminiumlegierung ausgebildet, lassen sich besonders vorteilhaft Strukturen in den Bereich des Blechs 1 einformen, welcher später als Boden der Bade- oder Duschwanne 5, 12 fungiert. So können in den Boden beispielsweise Tränen- oder Linsenstrukturen (nicht gezeigt) eingearbeitet werden, welche die Rutschgefahr auf dem Boden verringern und die Trittfestigkeit erhöhen.If the first metal sheet 1 is superplasticly deformable, formed from aluminum or an aluminum alloy, it is particularly advantageous to mold structures into the region of the metal sheet 1, which later acts as the bottom of the bath or shower tray 5, 12. For example, tears or lens structures (not shown) can be incorporated into the floor, which reduce the risk of slipping on the floor and increase the tread resistance.

Ein zweites Ausführungsbeispiel der erfindungsgemäßen, beheizbaren Bade- oder Duschwanne ist in den Fig. 4a,b in einer schematischen Schnittansicht dargestellt. In der Schnittansicht des zweiten Ausführungsbeispiels einer erfindungsgemäßen Badewanne 10 bzw. Duschwanne 13 sind separate Heizrohre bzw. -kanäle 11 zu erkennen, welche rückseitig auf das zur Badewanne 10 bzw. Duschwanne 13 umgeformte Blech 1 aufgebracht sind. Aufgrund der guten Wärmeleitung von Aluminium wird auch bei diesem Ausführungsbeispiel der erfindungsgemäßen Badewanne 10 bzw. der erfindungsgemäßen Duschwanne 13 das Blech 1 der Badewanne 10 oder Duschwanne 13 homogen erwärmt, so dass in die Badewanne 10 bzw. Duschwanne 13 eingefülltes Wasser länger seine Wärme behält. Zusätzlich kann die Badewanne 10 oder Duschwanne 13 gemäß dem zweiten Ausführungsbeispiel ebenfalls in einen isolierenden Körper 9 eingebettet sein.A second embodiment of the invention, heated bath or shower tray is in the Fig. 4a, b shown in a schematic sectional view. In the sectional view of the second embodiment of a bathtub according to the invention 10 or shower tray 13 separate heating pipes or channels 11 can be seen, which are applied to the rear of the bath 10 and shower tray 13 formed sheet metal 1. Due to the good heat conduction of aluminum, the bath 10 of the invention or the shower tray 13, the metal sheet 1 of the bath 10 or shower tray 13 is homogeneously heated in this embodiment, so that in the bath 10 or shower tray 13 filled water retains its heat longer. In addition, the bathtub 10 or shower tray 13 according to the second embodiment may also be embedded in an insulating body 9.

In einer alternativen Verwendung können die beheizbare Badewanne 5, 10 oder die beheizbare Duschwanne 12, 13 generell als Heizkörper fungieren, mit welchen die Umgebungsluft beheizt wird, beispielsweise wenn sich kein Wasser in der jeweiligen Wanne befindet. Auf diese Weise kann auf die Montage separater Heizkörper in einem Raum, in welchem sich eine der erfindungsgemäße Bade- oder Duschwannen 5, 10, 12, 13 befindet, gegebenenfalls vollständig verzichtet werden. Es ist jedoch auch möglich, die zusätzliche Heizleistung der beheizbaren Bade- oder Duschwanne 5, 10, 12, 13 zu nutzen, um klassische Heizkörper beim Heizen zu unterstützen.In an alternative use, the heatable bath 5, 10 or the heated shower tray 12, 13 generally act as a radiator with which the ambient air is heated, for example, when there is no water in the tub. In this way, the installation of separate radiator in a room in which one of the bath or shower trays 5, 10, 12, 13 according to the invention is optionally completely eliminated. However, it is also possible to use the additional heating power of the heated bath or shower tray 5, 10, 12, 13 to support classic radiators when heating.

Claims (11)

Beheizbare Bade- oder Duschwanne (5, 10, 12, 13) mit Mitteln zum Beheizen (6, 11) und Mitteln (7) zum Anschließen an Medienführungen einer Heizvorrichtung, dadurch gekennzeichnet, dass die Bade- oder Duschwanne (5, 10, 12, 13) aus Aluminium oder einer Aluminiumlegierung besteht, wobei die Bade- oder Duschwanne (5, 10, 12, 13) aus mindestens einem superplastisch verformbaren ersten Blech (1) aus Aluminium oder einer Aluminiumlegierung hergestellt ist.Heated bath or shower tray (5, 10, 12, 13) with means for heating (6, 11) and means (7) for connection to media guides a heater, characterized in that the bath or shower tray (5, 10, 12 , 13) consists of aluminum or an aluminum alloy, wherein the bath or shower tray (5, 10, 12, 13) of at least one superplastic deformable first sheet (1) made of aluminum or an aluminum alloy. Bade- oder Duschwanne nach Anspruch 1,
dadurch gekennzeichnet, dass als Mittel zum Beheizen (6, 11) auf die Bade- oder Duschwanne aufgebrachte Heizkanäle oder -rohre (11) vorgesehen sind.Bath or shower tray according to claim 1,
characterized in that as means for heating (6, 11) on the bath or shower tray applied heating channels or pipes (11) are provided. Bade- oder Duschwanne nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass ein weiteres umgeformtes zweites Blech (8) aus Aluminium oder einer Aluminiumlegierung vorgesehen ist, welches mit der Rückseite der Bade- oder Duschwanne (5, 10, 12, 13) verbunden die Heizkanäle oder -rohre (6) der Mittel zum Beheizen der Bade- oder Duschwanne bildet.Bath or shower tray according to claim 1 or 2,
characterized in that a further formed second sheet (8) made of aluminum or an aluminum alloy is provided, which with the back of the bath or shower tray (5, 10, 12, 13) connected the heating channels or pipes (6) of the means for Heating the bath or shower tray forms. Bade- oder Duschwanne nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das superplastisch verformbare erste und/oder zweite Blech (1) aus mindestens einer Kernschicht (2) mit einer magnesiumfreien Plattierschicht (3) gebildet wird.Bath or shower tray according to one of claims 1 to 3,
characterized in that the superplastic deformable first and / or second sheet (1) is formed from at least one core layer (2) with a magnesium-free cladding layer (3). Bade- oder Duschwanne nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass rückseitig die Bade- oder Duschwanne (5, 10, 12, 13) isoliert ist.Bath or shower tray according to one of claims 1 to 4,
characterized in that the back of the bath or shower tray (5, 10, 12, 13) is isolated. Bade- oder Duschwanne nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass eine Emailleschicht (4) vorgesehen ist.Bath or shower tray according to one of claims 1 to 5,
characterized in that an enamel layer (4) is provided. Verfahren zur Herstellung einer Bade- oder Duschwanne mit Mitteln zum Beheizen und Mitteln zum Anschließen von Medienführungen einer Heizvorrichtung, insbesondere einer Bade- oder Duschwanne nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass mindestens ein erstes Blech bestehend aus Aluminium oder einer Aluminiumlegierung durch superplastisches Umformen in eine Bade- oder Duschwanne umgeformt wird.Method for producing a bath or shower tray with means for heating and means for connecting media guides of a heating device, in particular a bath or shower tray according to one of claims 1 to 6,
characterized in that at least a first sheet consisting of aluminum or an aluminum alloy is formed by superplastic forming in a bath or shower tray. Verfahren nach Anspruch 7,
dadurch gekennzeichnet, dass ein Aluminiumblech mit einer superplastisch verformbaren Kernschicht und einer magnesiumfreien Plattierschicht verwendet wird.Method according to claim 7,
characterized in that an aluminum sheet with a superplastic deformable core layer and a magnesium-free cladding layer is used. Verfahren nach Anspruch 7 oder 8,
dadurch gekennzeichnet, dass ein zweites Blech aus Aluminium oder einer Aluminiumlegierung umgeformt wird und das zweite Blech mit der Rückseite der Bade- oder Duschwanne stoffschlüssig verbunden wird, wobei die Rückseite der Bade- oder Duschwanne zusammen mit dem umgeformten zweiten Blech die Mittel zum Beheizen bildet.Method according to claim 7 or 8,
characterized in that a second sheet of aluminum or an aluminum alloy is formed and the second sheet is firmly bonded to the back of the bath or shower tray, the back of the bath or shower tray together with the formed second sheet forms the means for heating. Verfahren nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet, dass die Bade- oder Duschwanne mit dem rückseitig vorgesehenen, umgeformten Blech durch Verschweißen oder Löten stoffschlüssig verbunden wird.Method according to one of claims 7 to 9,
characterized in that the bath or shower tray is integrally connected to the rear provided, formed sheet metal by welding or soldering. Verfahren nach einem der Ansprüche 7 bis 10,
dadurch gekennzeichnet, dass die Bade- oder Duschwanne in einen Wärme isolierenden Körper eingebettet oder rückseitig ein Wärme isolierendes Material aufgebracht wird.Method according to one of claims 7 to 10,
characterized in that the bath or shower tray embedded in a heat-insulating body or the back of a heat-insulating material is applied.
EP08106009.7A 2007-12-20 2008-12-17 Heatable bath or shower tray Not-in-force EP2072930B1 (en)

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DE102007062526A1 (en) 2009-06-25
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