EP0700729A1 - Easily cleanable shower head - Google Patents

Easily cleanable shower head Download PDF

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Publication number
EP0700729A1
EP0700729A1 EP95112664A EP95112664A EP0700729A1 EP 0700729 A1 EP0700729 A1 EP 0700729A1 EP 95112664 A EP95112664 A EP 95112664A EP 95112664 A EP95112664 A EP 95112664A EP 0700729 A1 EP0700729 A1 EP 0700729A1
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EP
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Prior art keywords
shower head
base plate
head according
water
edge
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EP95112664A
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German (de)
French (fr)
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EP0700729B1 (en
Inventor
Heinrich Wildvang
Christoph Dipl. Ing. Westermann
Horst Neugart
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Franz Scheffer OHG
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Franz Scheffer OHG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the invention relates to a shower head, in particular for the sanitary area and there for the shower, with a disc-shaped housing, the water connection passing into the handle on the one hand and into the housing on the other hand and a base plate made of plastic, in which water jet nozzles are formed.
  • shower heads are used in the sanitary area both for the shower and bathtub, but also for other purposes. They are also known, for example, in a correspondingly tailored form for the water basin in the kitchen area.
  • the shower head of shower facilities tends to clog, particularly in areas where the lime content in the water is high. Lime accumulates in the area of the water jet nozzles and there in the outlet area, which can usually only be removed mechanically, because the precipitated lime becomes so hard that it no longer escapes due to the water that later emerges again with the appropriate flow rate and pressure is washed away with.
  • the base part consists of a plastic composite material, the water jet nozzles being molded onto a plastic carrier plate (DE OS 43 08 599.7).
  • DE OS 40 39 337.2 describes a self-cleaning shower head in which an elastic jet former is assigned to the base part made of elastic material in order to achieve an elastic deformation on the jet former when pressurized with pressurized water.
  • the invention is therefore based on the object of providing an easy-to-clean shower head which has an optimized radiation pattern.
  • the base plate has several rows of water jet nozzles, the outlet opening of which has a bulge in the water outlet direction.
  • the base plate made of plastic therefore has corresponding bulges in the area of the water outlet openings, where the lime can accumulate. Due to the existing conditions, it can be easily wiped off these areas where it attaches without affecting the effect of the water jet nozzle. Even if there is no longer appropriate cleaning, the jet pattern of the water jet nozzles is retained because the deposit takes place in a part where it can no longer directly influence the jet.
  • a particularly useful design provides that the bulge of the outlet openings is elliptical, so that there is an attachment area for the fixing inclined lime material shows that the different distance to the edge of the outlet openings is different, which in turn makes cleaning much easier. It is known that a "weak point" layer of deposits can be detached more easily than a coating with uniform deposits.
  • the effect of the bulge is particularly favorable if the bulges are elliptical in plan view and hemispherical in section. It is not necessary to actually form a hemisphere, but a portion of it is sufficient, only that appropriately rounded shapes are produced which facilitate easy cleaning.
  • the base plate is designed as an annular disc and is mounted on the one hand in the edge of the housing and on the other hand in the middle part.
  • Such an annular disc can be the one that occurs Absorb forces much better than a continuous base plate, whereby the rays emanating from the ring plate ensure that the body parts are evenly acted upon and are generally perceived as pleasant.
  • This washer is mounted on the one hand in the edge of the housing and on the other hand in the middle part, i.e.
  • the base plate has a groove on the edge side, in an O-ring sealing against the housing edge or the middle part is mounted.
  • the two O-rings are arranged so that they ensure the necessary tightness and on the other hand ensure that the annular base plate is securely mounted.
  • the hole pattern of the base plate is characterized in that the water outlet nozzles on the base plate or annular disc are offset in two rows from one another on jets passing through the center of the circle of the base plate. Due to the slight offset of the individual water outlet nozzles or their bulging, the individual bulges are acted upon one after the other during wiping, so that the cleaning effect is thus improved.
  • this results in a very useful hole pattern with a supplementary illustration also interpreting the arrangement in such a way that the water outlet nozzles are arranged in groups of four in an arc running from the inner edge to the outer edge.
  • the water outlet nozzles have different outlet angles depending on the distance from the edge of the housing, the basic flow direction or jet direction being predetermined, of course, and being approximately perpendicular to the central axis of the shower head.
  • a further optimization of the cleaning possibility is provided by a design according to which the base plate or annular disc is formed with the central part to form an outwardly curved spherical surface, which means that the individual outlet openings of the water jet nozzles lie in different planes and are therefore less expensive to clean and for give others an optimized hole pattern or radiation pattern.
  • the uniform water jets act due to the exit angle and the exit plane so that the effect described is maintained even after a long period of inactivity.
  • the base plate or the ring disk consists of a plastic with a Shore hardness of around 90, preferably TPE.
  • TPE thermoplastic polyethylene
  • the invention is characterized in particular by the fact that a shower head is created which can be kept relatively simple in construction, but is nevertheless easy to clean with regard to the limescale deposits.
  • a shower head is created which can be kept relatively simple in construction, but is nevertheless easy to clean with regard to the limescale deposits.
  • it has an optimized hole pattern that not only makes cleaning easier, but at the same time also specifies the formation of a jet to form an advantageously uniform overall jet.
  • the shower head also has a favorable service life and, if necessary, also allows the base plate with the water jet nozzles to be replaced if this should become necessary during the entire operation. However, it is not necessary to replace the entire shower head.
  • a shower head provided for the shower area which can also be used in other areas as well, is provided with the reference number 1 in FIG. 1.
  • This shower head 1 has a disk-shaped housing 2, into which the water connection 3 opens at the top.
  • a bottom plate 4 is clamped, the special features of which will be discussed further below.
  • the base plate 4 is equipped with a large number of water jet nozzles 5, 6, 7, all of which basically have the same shape, although the exit angle depends on the plane in which the outlet opening 10 of the individual water jet nozzles 5, 6, 7 is arranged, can be different.
  • the middle part 8 of the base plate 4 also serves as a holder for the actual base plate 4, which is designed here as an annular disk.
  • This middle part 8 is fixed to the housing 2 by means of the fastening 9, whereby, as already mentioned, the annular base plate 4 is supported at the same time.
  • the individual outlet openings 10 of the water jet nozzles 5, 6, 7 have a bulge 12 in the water outlet direction 11, which is indicated in FIG. 1, but can be seen particularly clearly from FIG. 4.
  • This bulge 12 is hemispherical in order to avoid straight, rugged edges. This makes cleaning limescale deposits much easier.
  • the individual water jet nozzles 5, 6, 7 are each arranged in rows 15 and 16, the details of the hole pattern in FIG. 2 being apparent and also being described in more detail in the context of the explanations for FIG. 2.
  • the base plate 4 is clamped between the housing edge 22 and the central part 8.
  • the bottom plate 4 has a groove 23, 24 of the same design on both edges, an O-ring 25 being mounted in each of these grooves in order to seal this area and to ensure that all the water is only available via the water jet nozzles 5, 6, 7 can leave the area of the shower head.
  • FIGS. 2 and 3 The shape of the individual bulge 12 is illustrated in FIGS. 2 and 3, with FIG. 3 an enlarged representation of a the bulges 12. It can be seen here that the bulge is in the form of an ellipse, the beam 20 passing through the center of the circle 19 intersecting both focal points 17, 18 of this ellipse. As explained in FIG. 3, the outlet opening 10 is displaced in the direction of the focal point 17, so that there is a different distance between the individual bulging areas and the outlet opening 10 or its edge 13.
  • Fig. 2 illustrates that the individual bulges 12 or water jet nozzles 5, 6, 7 are each combined into two rows 27, 28, with the associated two water jet nozzles 5 'and 6' being offset from one another in each of these two rows 27 and 28.
  • Fig. 2 also illustrates that the individual water jet nozzles 5, 6, 7 are combined into groups of four 31, 32 which are evenly distributed on a fleeing sheet 35 pointing from the inner edge 33 to the outer edge 34. This results in the effect already described that none of the water jet nozzles 5 lies exactly on the same jet 20, 20 ', 20' ', but rather in each case offset on its own jet or, moreover, again on the sheet 35 described.
  • the hole pattern of the base plate 4 described provides, on the one hand, an optimized overall jet of the shower head 1 and, on the other hand, a relief when cleaning. This cleaning also complies with the arrangement of the individual bulges 12 - with the narrow side directed towards the cleaning direction - if one assumes that the cleaning cloth or whatever is moved in a circle during cleaning.
  • the special design of the base plate 4 corresponds to FIG. 1 that the base plate 4 in the form of the annular disc and the central part 8 form a spherical surface 30, so that the individual water jet nozzles 5, 6, 7, as shown in FIG. 1, yes illustrates exiting in different levels of the base plate 4.

Abstract

The base plate (4) of a shower head has a number of rows (15, 16) of water jets (5-7). Their outlet openings (10) have an upwards curvature (12) in the water outlet direction (11). The base plate (4) or ring disc is of a plastics, and pref. TPE, with a Shore hardness of about 90.

Description

Die Erfindung betrifft einen Brausekopf, insbesondere für den Sanitärbereich und dort für die Dusche, mit einem scheibenförmigen Gehäuse, dem einerseits in den Handgriff und andererseits in das Gehäuse übergehenden Wasseranschluß und einer Bodenplatte aus Kunststoff, in der Wasserstrahldüsen ausgebildet sind.The invention relates to a shower head, in particular for the sanitary area and there for the shower, with a disc-shaped housing, the water connection passing into the handle on the one hand and into the housing on the other hand and a base plate made of plastic, in which water jet nozzles are formed.

Derartige Brauseköpfe werden im Sanitärbereich sowohl für den Bereich der Dusche wie der Badewanne, aber auch für andere Zwecke eingesetzt. Bekannt sind sie beispielsweise in entsprechend zugeschnittener Form auch für das Wasserbecken im Küchenbereich. Insbesondere der Brausekopf von Duscheinrichtungen neigt insbesondere in Gegenden zu Verstopfungen, wo der Kalkanteil im Wasser hoch ist. Dabei setzt sich im Bereich der Wasserstrahldüsen und dort wiederum im Austrittsbereich Kalk an, der in der Regel nur mechanisch entfernt werden kann, weil der ausfallende Kalk so weit hart wird, daß er auch durch das später wieder mit entsprechender Fließgeschwindigkeit und Druck austretende Wasser nicht mehr mit weggespült wird. Bekannt ist es, stromabwärts der Wasseraustrittsöffnungen bzw. Düsen ein Verschlußglied vorzusehen, das bei Betriebsruhe die Düse verschließt (DE OS 40 39 338, DE OS 40 39 329 oder auch DE OS 40 39 328) oder aber den Querschnitt einer den Düsen nachgeordneten Fluidaustrittsöffnung größer zu bemessen als den Fluideinlaß (EP-A1 0 478 999, EP-A3 0 435 030). Nachteilig dabei ist, daß die Konstruktion des Brausekopfes damit erheblich verkompliziert wird und daß dennoch ein Austrocknen und damit Festsetzen der Kalkablagerungen nicht mit der notwendigen Sicherheit verhindert werden kann. Bekannt ist es auch, dem Bodenteil gummielastische, schlauchartige Wasserstrahldüsen zuzuordnen, um so das Festsetzen von Kalkablagerungen zu verhindern. Dabei besteht das Bodenteil aus einem Kunststoffverbundmaterial, wobei die Wasserstrahldüsen an eine Trägerplatte aus Kunststoff angespritzt sind (DE OS 43 08 599.7). Die DE OS 40 39 337.2 beschreibt einen selbstreinigenden Brausekopf, bei dem dem aus elastischen Material bestehenden Bodenteil ein elastischer Strahlbildner zugeordnet ist, um bei Beaufschlagung mit Druckwasser eine elastische Verformung am Strahlbildner zu erreichen. Auch diese Lösungen sind sehr aufwendig und erfordern verhältnismäßig hohe Elastizität der einzelnen Bauteile, was bei den auftretenden Wasserdrücken und den Einsatzbedingungen zu Schwierigkeiten führen kann. Nicht vergessen werden darf dabei, daß in diesem Bereich mit höheren Temperaturen gearbeitet wird, so daß sich die Eigenschaften des Materials auch noch wieder ändern.Such shower heads are used in the sanitary area both for the shower and bathtub, but also for other purposes. They are also known, for example, in a correspondingly tailored form for the water basin in the kitchen area. In particular, the shower head of shower facilities tends to clog, particularly in areas where the lime content in the water is high. Lime accumulates in the area of the water jet nozzles and there in the outlet area, which can usually only be removed mechanically, because the precipitated lime becomes so hard that it no longer escapes due to the water that later emerges again with the appropriate flow rate and pressure is washed away with. It is known to provide a closure member downstream of the water outlet openings or nozzles, which closes the nozzle during idle operation (DE OS 40 39 338, DE OS 40 39 329 or also DE OS 40 39 328) or the cross section of a fluid outlet opening arranged downstream of the nozzles is larger to be dimensioned as the fluid inlet (EP-A1 0 478 999, EP-A3 0 435 030). The disadvantage here is that the construction of the shower head is considerably complicated and that drying out and thus the limescale deposits cannot be prevented with the necessary security. It is also known to assign rubber-elastic, hose-like water jet nozzles to the base part in order to fix them to prevent limescale deposits. The base part consists of a plastic composite material, the water jet nozzles being molded onto a plastic carrier plate (DE OS 43 08 599.7). DE OS 40 39 337.2 describes a self-cleaning shower head in which an elastic jet former is assigned to the base part made of elastic material in order to achieve an elastic deformation on the jet former when pressurized with pressurized water. These solutions are also very complex and require relatively high elasticity of the individual components, which can lead to difficulties in the water pressures and operating conditions. It should not be forgotten that higher temperatures are used in this area, so that the properties of the material also change again.

Der Erfindung liegt damit die Aufgabe zugrunde, einen leicht zu reinigenden, ein optimiertes Strahlenbild aufweisenden Brausekopf zu schaffen.The invention is therefore based on the object of providing an easy-to-clean shower head which has an optimized radiation pattern.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Bodenplatte mehrere Reihen von Wasserstrahldüsen aufweist, deren Austrittsöffnung jeweils in Wasseraustrittsrichtung eine Aufwölbung aufweist. Die aus Kunststoff bestehende Bodenplatte verfügt also im Bereich der Wasseraustrittsöffnungen über entsprechende Aufwölbungen, wo sich wenn der Kalk ablagern kann. Aufgrund der dann vorhandenen Gegebenheiten kann er von diesen Flächen, wo er sich ansetzt, leicht abgewischt werden, ohne die Wirkung der Wasserstrahldüse zu beeinflussen. Selbst wenn über längere Zeit nicht entsprechend gereinigt wird, bleibt das Strahlenbild der Wasserstrahldüsen erhalten, da sich die Ablagerung in einem Teil vollzieht, wo sie den Strahl direkt nicht mehr beeinflussen kann.The object is achieved in that the base plate has several rows of water jet nozzles, the outlet opening of which has a bulge in the water outlet direction. The base plate made of plastic therefore has corresponding bulges in the area of the water outlet openings, where the lime can accumulate. Due to the existing conditions, it can be easily wiped off these areas where it attaches without affecting the effect of the water jet nozzle. Even if there is no longer appropriate cleaning, the jet pattern of the water jet nozzles is retained because the deposit takes place in a part where it can no longer directly influence the jet.

Eine besonders zweckmäßige Ausbildung sieht vor, daß die Aufwölbung der Austrittsöffnungen elipsenförmig ausgebildet ist, so daß sich ein Anlagerungsbereich für das zum Festsetzen neigende Kalkmaterial ergibt, daß durch die unterschiedliche Entfernung zum Rand der Austrittsöffnungen unterschiedlich belegt ist, wodurch wiederum das Reinigen wesentlich erleichtert wird. Bekannt ist es ja, daß eine "Schwachstellen" aufweisende Schicht von Ablagerungen leichter abgelöst werden kann, als eine gleichmäßige Anlagerungen aufweisende Beschichtung.A particularly useful design provides that the bulge of the outlet openings is elliptical, so that there is an attachment area for the fixing inclined lime material shows that the different distance to the edge of the outlet openings is different, which in turn makes cleaning much easier. It is known that a "weak point" layer of deposits can be detached more easily than a coating with uniform deposits.

Nimmt man sich die Ausbildung der Aufwölbung etwas genauer vor, so ergibt sich, daß es besonders zweckmäßig ist, die elipsenförmigen Aufwölbungen der Austrittsöffnungen mit ihren Brennpunkten auf einem durch den Kreismittelpunkt der Bodenplatte gehenden Strahl anzuordnen. Wiederum zweckmäßig ist es, wenn dabei die Austrittsöffnung selber zu einem der Brennpunkte nähergerückt ist, so daß der weiter vorne beschriebene Effekt der unterschiedlichen Schichtdicke von Anlagerungen sich gezielt einstellt. Alle Austrittsöffnungen bzw. alle Aufwölbungen verfügen somit über die gleiche Ausbildung und Anordnung, so daß bei einem Bearbeiten, d. h. Säubern bzw. Abwischen nicht einzelne der zu reinigenden Bereiche besonders behandelt werden müssen. Vielmehr sind wenn die Anbackungen bei allen Bohrungen bzw. besser gesagt Wasserstrahldüsen und deren Austrittsöffnungen gleich leicht zu entfernen.If one takes a closer look at the formation of the bulge, it turns out that it is particularly expedient to arrange the elliptical bulges of the outlet openings with their focal points on a beam going through the center of the circle of the base plate. Again, it is expedient if the outlet opening itself is moved closer to one of the focal points, so that the effect of the different layer thicknesses of deposits described above occurs in a targeted manner. All outlet openings or all bulges thus have the same design and arrangement, so that when processing, d. H. Cleaning or wiping does not require individual treatment of the areas to be cleaned. Rather, if the caking in all holes or rather water jet nozzles and their outlet openings are equally easy to remove.

Die Wirkung der Aufwölbung ist besonders günstig, wenn die Aufwölbungen in der Draufsicht elipsenförmig und im Schnitt halbkugelförmig ausgebildet sind. Dabei ist es nicht erforderlich, wirklich eine Halbkugel zu bilden, sondern es reicht auch ein Teilbereich davon, nur daß eben entsprechend abgerundete Formen erzeugt werden, die das leichte Reinigen begünstigen.The effect of the bulge is particularly favorable if the bulges are elliptical in plan view and hemispherical in section. It is not necessary to actually form a hemisphere, but a portion of it is sufficient, only that appropriately rounded shapes are produced which facilitate easy cleaning.

Für eine gleichmäßig arbeitende Brause ist es besonders zweckmäßig, wenn die Bodenplatte als Ringscheibe ausgebildet und einerseits im Gehäuserand und andererseits im Mittelteil gelagert ist. Eine derartige Ringscheibe kann die auftretenden Kräfte wesentlich besser aufnehmen, als eine durchgehende Bodenplatte, wobei die von der Ringplatte ausgehenden Strahlen eine gleichmäßige Beaufschlagung der Körperteile durchaus sicherstellt und sogar allgemein als angenehm empfunden wird. Diese Ringscheibe ist einerseits im Gehäuserand und andererseits im Mittelteil gelagert, d. h. sie kann zusammen mit dem Mittelteil montiert und demontiert werden, wobei die notwendige Dichtheit gewährleistet ist, wenn wie erfindungsgemäß nach einer weiteren Ausbildung vorgesehen ist, die Bodenplatte randseitig jeweils eine Nut aufweist, in der ein gegen den Gehäuserand bzw. das Mittelteil abdichtender O-Ring gelagert ist. Die beiden O-Ringe sind dabei so angeordnet, daß sie für die notwendige Dichtigkeit Sorge tragen und andererseits gewährleisten, daß die ringförmige Bodenplatte sicher gelagert wird.For a uniformly working shower, it is particularly expedient if the base plate is designed as an annular disc and is mounted on the one hand in the edge of the housing and on the other hand in the middle part. Such an annular disc can be the one that occurs Absorb forces much better than a continuous base plate, whereby the rays emanating from the ring plate ensure that the body parts are evenly acted upon and are generally perceived as pleasant. This washer is mounted on the one hand in the edge of the housing and on the other hand in the middle part, i.e. it can be assembled and disassembled together with the middle part, the necessary tightness being ensured if, as provided in accordance with the invention according to a further embodiment, the base plate has a groove on the edge side, in an O-ring sealing against the housing edge or the middle part is mounted. The two O-rings are arranged so that they ensure the necessary tightness and on the other hand ensure that the annular base plate is securely mounted.

Das Lochbild der Bodenplatte ist gemäß der vorliegenden Erfindung dadurch gekennzeichnet, daß die Wasseraustrittsdüsen auf der Bodenplatte bzw. Ringscheibe auf durch den Kreismittelpunkt der Bodenplatte gehenden Strahlen, in Zweierreihen versetzt zueinander ausgebildet sind. Durch den leichten Versatz der einzelnen Wasseraustrittsdüsen bzw. deren Aufwölbung werden beim Wischen die einzelnen Aufwölbungen nacheinander beaufschlagt, so daß der Reinigungseffekt damit verbessert ist. Außerdem ergibt sich so ein sehr zweckmäßiges Lochbild, wobei eine ergänzende Darstellung die Anordung auch so interpretiert, daß die Wasseraustrittsdüsen in Vierergruppen in einem vom Innenrand zum Außenrand fliehend verlaufenden Bogen angeordnet sind. Näheres hierzu wird im Rahmen der Figuren noch gezeigt und erläutert, wobei diese besondere Anordnung in Vierergruppen den bereits erwähnten Effekt steigert, nämlich daß beim Reinigen praktisch nie mehrere Aufwölbungen gleichzeitig beeinflußt werden, sondern immer eine nach der anderen. Außerdem ist so ein optimales Strahlenbild gegeben, d. h. es ergibt sich ein gleichförmig beschickter Wassermantel, der auf den Körper des Duschenden oder sich Reinigenden einwirkt.According to the present invention, the hole pattern of the base plate is characterized in that the water outlet nozzles on the base plate or annular disc are offset in two rows from one another on jets passing through the center of the circle of the base plate. Due to the slight offset of the individual water outlet nozzles or their bulging, the individual bulges are acted upon one after the other during wiping, so that the cleaning effect is thus improved. In addition, this results in a very useful hole pattern, with a supplementary illustration also interpreting the arrangement in such a way that the water outlet nozzles are arranged in groups of four in an arc running from the inner edge to the outer edge. Further details are shown and explained in the context of the figures, this particular arrangement in groups of four increasing the effect already mentioned, namely that when cleaning is practically never more bulges are affected simultaneously, but always one after the other. In addition, there is an optimal radiation pattern, ie there is a uniformly charged water jacket, which acts on the body of the showering or cleaning person.

Wiederum zum Erzielen eines optimalen Wasserstrahlenbildes und zur Optimierung der Bestrahlung des zu Reinigenden ist vorgesehen, daß die Wasseraustrittsdüsen je nach Entfernung vom Gehäuserand unterschiedliche Austrittswinkel aufweisen, wobei die Grundfließrichtung bzw. Strahlrichtung natürlich vorgegeben ist und etwa rechtwinklig zur Mittelachse des Brausekopfes verläuft.Again in order to achieve an optimal water jet image and to optimize the irradiation of the items to be cleaned, it is provided that the water outlet nozzles have different outlet angles depending on the distance from the edge of the housing, the basic flow direction or jet direction being predetermined, of course, and being approximately perpendicular to the central axis of the shower head.

Einer weiteren Optimierung der Reinigungsmöglichkeit dient eine Ausbildung, nach der die Bodenplatte bzw. Ringscheibe mit dem Mittelteil eine nach außen gewölbte Kugelfläche bildend geformt ist, was bewirkt, daß die einzelnen Austrittsöffnungen der Wasserstrahldüsen in unterschiedlichen Ebenen liegen und damit einmal günstiger zu reinigen sind und zum anderen ein optimiertes Lochbild bzw. Strahlenbild ergeben. Die gleichförmigen Wasserstrahlen wirken dabei aufgrund des Austrittswinkels und der Austrittsebene so, daß auch nach langer Standzeit der beschriebene Effekt gewahrt bleibt. Im übrigen gibt es natürlich immer die Möglichkeit, die Ringscheibe bei extremer Verschmutzung oder gar bei Beschädigungen auszuwechseln, um auf diese Art und Weise eine sofort wieder optimal funktionsfähige Brause zu erhalten.A further optimization of the cleaning possibility is provided by a design according to which the base plate or annular disc is formed with the central part to form an outwardly curved spherical surface, which means that the individual outlet openings of the water jet nozzles lie in different planes and are therefore less expensive to clean and for give others an optimized hole pattern or radiation pattern. The uniform water jets act due to the exit angle and the exit plane so that the effect described is maintained even after a long period of inactivity. In addition, there is of course always the possibility to replace the ring disc in the event of extreme contamination or even damage, in order to obtain an immediately optimally functioning shower in this way.

Schließlich ist es nicht gleichgültig, welcher Kunststoff als Material für die Bodenplatte in Frage kommt. Gemäß der vorliegenden Erfindung ist vorgesehen, daß die Bodenplatte bzw. die Ringscheibe aus einem eine Shore Härte von rund 90 aufweisenden Kunststoff, vorzugsweise TPE besteht. Bei einem solchen Kunststoffmaterial ist bei ausreichender Elastizität eine ausreichende Standzeit gewährleistet und vor allem die notwendige Oberfläche gewährleistet, um die Kalkablagerungen leicht und sicher ablösen bzw. letztlich sogar abwischen zu können. Dennoch verfügt eine solche Ringscheibe über die notwendige Standzeit, da auch die über die eigentliche Fläche der Ringscheibe vorstehenden Aufwölbungen nicht durch die Abreinigung beschädigt werden können.After all, it is not indifferent which plastic is suitable as the material for the base plate. According to the present invention, it is provided that the base plate or the ring disk consists of a plastic with a Shore hardness of around 90, preferably TPE. With such a plastic material, sufficient elasticity is ensured with sufficient elasticity and, above all, the necessary surface is guaranteed in order to be able to remove the limescale easily and safely, or ultimately even to be able to wipe it off. Nevertheless, such an annular disc has the necessary service life, since the bulges protruding from the actual surface of the annular disc cannot be damaged by the cleaning.

Die Erfindung zeichnet sich insbesondere dadurch aus, daß ein Brausekopf geschaffen ist, der im Aufbau verhältnismäßig einfach gehalten werden kann, dennoch aber leicht bezüglich der Kalkablagerungen zu reinigen ist. Darüber hinaus verfügt er über ein optimiertes Lochbild, daß nicht nur das Reinigen erleichtert, sondern gleichzeitig auch die Strahlbildung zu einem vorteilhaft gleichförmigen Gesamtstrahl vorgibt. Der Brausekopf verfügt darüber hinaus über günstige Standzeiten und ermöglicht bei Bedarf auch einen Austausch der die Wasserstrahldüsen aufweisenden Bodenplatte, wenn dies während des Gesamtbetriebes mal notwendig werden sollte. Es ist dagegen nicht erforderlich, den gesamten Brausekopf auszuwechseln.The invention is characterized in particular by the fact that a shower head is created which can be kept relatively simple in construction, but is nevertheless easy to clean with regard to the limescale deposits. In addition, it has an optimized hole pattern that not only makes cleaning easier, but at the same time also specifies the formation of a jet to form an advantageously uniform overall jet. The shower head also has a favorable service life and, if necessary, also allows the base plate with the water jet nozzles to be replaced if this should become necessary during the entire operation. However, it is not necessary to replace the entire shower head.

Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der ein bevorzugtes Ausführungsbeispiel mit den dazu notwendigen Einzelheiten und Einzelteilen dargestellt ist. Es zeigen:

Fig. 1
einen Querschnitt durch einen Brausekopf mit Bodenplatte,
Fig. 2
eine Draufsicht auf die Bodenplatte mit Mittelteil,
Fig. 3
eine Draufsicht auf eine Austrittsöffnung einer Wasserstrahldüse und
Fig. 4
einen Schnitt durch die Bodenplatte im unteren Bereich einer Austrittsöffnung.
Further details and advantages of the subject matter of the invention emerge from the following description of the associated drawing, in which a preferred exemplary embodiment is shown with the necessary details and individual parts. Show it:
Fig. 1
a cross section through a shower head with base plate,
Fig. 2
a plan view of the base plate with middle part,
Fig. 3
a plan view of an outlet opening of a water jet nozzle and
Fig. 4
a section through the bottom plate in the lower region of an outlet opening.

Ein für den Duschbereich vorgesehener Brausekopf, der genausogut aber auch in anderen Bereichen eingesetzt werden kann, ist in Fig. 1 mit dem Bezugszeichen 1 versehen. Dieser Brausekopf 1 verfügt über ein scheibenförmiges Gehäuse 2, in das oben der Wasseranschluß 3 einmündet. Im gegenüberliegenden flachen Bodenbereich des Gehäuses 2 ist eine Bodenplatte 4 eingespannt, auf deren besondere Merkmale weiter hinten eingegangen wird.A shower head provided for the shower area, which can also be used in other areas as well, is provided with the reference number 1 in FIG. 1. This shower head 1 has a disk-shaped housing 2, into which the water connection 3 opens at the top. In the opposite flat bottom area of the housing 2, a bottom plate 4 is clamped, the special features of which will be discussed further below.

Die Bodenplatte 4 ist mit einer Vielzahl von Wasserstrahldüsen 5, 6, 7 bestückt, die vom Grundsatz her alle die gleiche Form aufweisen, wobei allerdings der Austrittswinkel je nach Ebene, in der die Austrittsöffnung 10 der einzelnen Wasserstrahldüsen 5, 6, 7 angeordnet ist, unterschiedlich sein kann.The base plate 4 is equipped with a large number of water jet nozzles 5, 6, 7, all of which basically have the same shape, although the exit angle depends on the plane in which the outlet opening 10 of the individual water jet nozzles 5, 6, 7 is arranged, can be different.

Das Mittelteil 8 der Bodenplatte 4 dient gleichzeitig als Halterung für die eigentliche Bodenplatte 4 die hier als Ringscheibe ausgebildet ist. Dieses Mittelteil 8 ist über die Befestigung 9 an dem Gehäuse 2 festgelegt, wobei gleichzeitig damit, wie schon erwähnt, die ringförmige Bodenplatte 4 abgestützt wird.The middle part 8 of the base plate 4 also serves as a holder for the actual base plate 4, which is designed here as an annular disk. This middle part 8 is fixed to the housing 2 by means of the fastening 9, whereby, as already mentioned, the annular base plate 4 is supported at the same time.

Die einzelnen Austrittsöffnungen 10 der Wasserstrahldüsen 5, 6, 7 verfügen in Wasseraustrittsrichtung 11 über eine Aufwölbung 12, was in Fig. 1 angedeutet ist, der Fig. 4 aber besonders deutlich entnommen werden kann. Diese Aufwölbung 12 ist halbkugelförmig, um so gerade, schroffe Kanten zu vermeiden. Dadurch wird das Abreinigen von Kalkablagerungen wesentlich erleichtert.The individual outlet openings 10 of the water jet nozzles 5, 6, 7 have a bulge 12 in the water outlet direction 11, which is indicated in FIG. 1, but can be seen particularly clearly from FIG. 4. This bulge 12 is hemispherical in order to avoid straight, rugged edges. This makes cleaning limescale deposits much easier.

Die einzelnen Wasserstrahldüsen 5, 6, 7 sind jeweils in Reihen 15 bzw. 16 angeordnet, wobei die Einzelheiten des Lochbildes Fig. 2 entnommen werden können und im Rahmen der Erläuterungen zu Fig. 2 auch noch näher beschrieben werden.The individual water jet nozzles 5, 6, 7 are each arranged in rows 15 and 16, the details of the hole pattern in FIG. 2 being apparent and also being described in more detail in the context of the explanations for FIG. 2.

Die Bodenplatte 4 ist gemäß Fig. 1 zwischen Gehäuserand 22 und Mittelteil 8 eingespannt. Die Bodenplatte 4 verfügt an beiden Rändern über jeweils eine gleich ausgebildete Nut 23, 24, wobei in jeder dieser Nuten ein O-Ring 25 gelagert ist, um diesen Bereich abzudichten und sicherzustellen, daß das gesamte Wasser nur über die Wasserstrahldüsen 5, 6, 7 den Bereich des Brausekopfes verlassen kann.1, the base plate 4 is clamped between the housing edge 22 and the central part 8. The bottom plate 4 has a groove 23, 24 of the same design on both edges, an O-ring 25 being mounted in each of these grooves in order to seal this area and to ensure that all the water is only available via the water jet nozzles 5, 6, 7 can leave the area of the shower head.

Die Form der einzelnen Aufwölbung 12 verdeutlicht Fig. 2 und Fig. 3, wobei Fig. 3 eine vergrößerte Wiedergabe einer der Aufwölbungen 12 ist. Hier zeigt sich, daß die Aufwölbung die Form einer Elipse aufweist, wobei der durch den Kreismittelpunkt 19 gehende Strahl 20 beide Brennpunkte 17, 18 dieser Elipse schneidet. Die Austrittsöffnung 10 ist wie Fig. 3 erläutert, in Richtung auf den Brennpunkt 17 verschoben, so daß ein unterschiedlicher Abstand der einzelnen Aufwölbungsbereiche zur Austrittsöffnung 10 bzw. dessen Kante 13 gegeben ist.The shape of the individual bulge 12 is illustrated in FIGS. 2 and 3, with FIG. 3 an enlarged representation of a the bulges 12. It can be seen here that the bulge is in the form of an ellipse, the beam 20 passing through the center of the circle 19 intersecting both focal points 17, 18 of this ellipse. As explained in FIG. 3, the outlet opening 10 is displaced in the direction of the focal point 17, so that there is a different distance between the individual bulging areas and the outlet opening 10 or its edge 13.

Fig. 2 verdeutlicht, daß die einzelnen Aufwölbungen 12 bzw. Wasserstrahldüsen 5, 6, 7 jeweils zu Zweierreihen 27, 28 zusammengefaßt sind, wobei bei jeder dieser Zweierreihen 27 und 28 die dazugehörigen beiden Wasserstrahldüsen 5' und 6' versetzt zueinander angeordnet sind.Fig. 2 illustrates that the individual bulges 12 or water jet nozzles 5, 6, 7 are each combined into two rows 27, 28, with the associated two water jet nozzles 5 'and 6' being offset from one another in each of these two rows 27 and 28.

Fig. 2 verdeutlicht aber auch, daß die einzelnen Wasserstrahldüsen 5, 6, 7 zu Vierergruppen 31, 32 zusammengefaßt sind, die auf einem von dem Innenrand 33 zum Außenrand 34 weisenden, fliehenden Bogen 35 gleichmäßig verteilt angeordnet sind. Dadurch ergibt sich der schon beschriebene Effekt, daß keine der Wasserstrahldüsen 5 genau auf dem gleichen Strahl 20, 20', 20'' liegt, sondern vielmehr jeweils versetzt auf einem eigenen Strahl bzw. und darüber hinaus noch wieder auf dem beschriebenen Bogen 35.Fig. 2 also illustrates that the individual water jet nozzles 5, 6, 7 are combined into groups of four 31, 32 which are evenly distributed on a fleeing sheet 35 pointing from the inner edge 33 to the outer edge 34. This results in the effect already described that none of the water jet nozzles 5 lies exactly on the same jet 20, 20 ', 20' ', but rather in each case offset on its own jet or, moreover, again on the sheet 35 described.

Das beschriebene Lochbild der Bodenplatte 4 erbringt zum einen einen optimierten Gesamtstrahl des Brausekopfes 1 und zum anderen eine Erleichterung beim Säubern. Dieser Säuberung entgegen kommt auch die Anordnung der einzelnen Aufwölbungen 12 - quasi mit der Schmalseite zur Reinigungsrichtung gerichtet - , wenn man mal davon ausgeht, daß beim Reinigen üblicherweise der Reinigungslappen oder was auch immer im Kreise bewegt wird.The hole pattern of the base plate 4 described provides, on the one hand, an optimized overall jet of the shower head 1 and, on the other hand, a relief when cleaning. This cleaning also complies with the arrangement of the individual bulges 12 - with the narrow side directed towards the cleaning direction - if one assumes that the cleaning cloth or whatever is moved in a circle during cleaning.

Der besonderen Ausbildung der Bodenplatte 4 entspricht es gemäß Fig. 1, daß die Bodenplatte 4 in Form der Ringscheibe und das Mittelteil 8 eine Kugelfläche 30 bilden, so daß die einzelnen Wasserstrahldüsen 5, 6, 7, wie Fig. 1 ja schon verdeutlicht, in unterschiedlichen Ebenen der Bodenplatte 4 austreten.The special design of the base plate 4 corresponds to FIG. 1 that the base plate 4 in the form of the annular disc and the central part 8 form a spherical surface 30, so that the individual water jet nozzles 5, 6, 7, as shown in FIG. 1, yes illustrates exiting in different levels of the base plate 4.

Alle genannten Merkmale, auch die den Zeichnungen allein zu entnehmenden, werden allein und in Kombination als erfindungswesentlich angesehen.All of the features mentioned, including those that can be seen in the drawings alone, are regarded as essential to the invention, alone and in combination.

Claims (11)

Brausekopf, insbesondere für den Sanitärbereich und dort für die Dusche, mit einem scheibenförmigen Gehäuse, dem einerseits in den Handgriff und andererseits in das Gehäuse übergehenden Wasseranschluß und einer Bodenplatte aus Kunststoff, in der Wasserstrahldüsen ausgebildet sind,
dadurch gekennzeichnet,
daß die Bodenplatte (4) mehrere Reihen (15, 16) von Wasserstrahldüsen (5, 6, 7) aufweist, deren Austrittsöffnung (10) jeweils in Wasseraustrittsrichtung (11) eine Aufwölbung (12) aufweist.Shower head, in particular for the sanitary area and there for the shower, with a disk-shaped housing, the water connection passing into the handle on the one hand and into the housing on the other hand and a plastic base plate in which water jet nozzles are formed,
characterized by
that the base plate (4) has a plurality of rows (15, 16) of water jet nozzles (5, 6, 7), the outlet opening (10) of which has a bulge (12) in each case in the water outlet direction (11). Brausekopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Aufwölbung (12) der Austrittsöffnung (10) elipsenförmig ausgebildet ist.Shower head according to claim 1,
characterized by
that the bulge (12) of the outlet opening (10) is elliptical. Brausekopf nach Anspruch 2,
dadurch gekennzeichnet,
daß die elipsenförmigen Aufwölbungen (12) der Austrittsöffnungen (10) mit ihren Brennpunkten (17, 18) auf einem durch den Kreismittelpunkt (19) der Bodenplatte (4) gehenden Strahl (20) angeordnet sind.Shower head according to claim 2,
characterized by
that the elliptical bulges (12) of the outlet openings (10) with their focal points (17, 18) are arranged on a beam (20) going through the center of the circle (19) of the base plate (4). Brausekopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Aufwölbungen (12) in der Draufsicht elipsenförmig und im Schnitt halbkugelförmig ausgebildet sind.Shower head according to claim 1,
characterized by
that the bulges (12) are elliptical in plan view and hemispherical in section. Brausekopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Bodenplatte (4) als Ringscheibe ausgebildet, und einerseits im Gehäuserand (22) und andererseits im Mittelteil (8) gelagert ist.Shower head according to claim 1,
characterized by
that the base plate (4) is designed as an annular disk and is mounted on the one hand in the housing edge (22) and on the other hand in the central part (8). Brausekopf nach Anspruch 5,
dadurch gekennzeichnet,
daß die Bodenplatte (4) randseitig jeweils eine Nut (23, 24) aufweist, in der ein gegen den Gehäuserand (22) bzw. das Mittelteil (8) abdichtender O-Ring (25) gelagert ist.Shower head according to claim 5,
characterized by
that the bottom plate (4) has a groove (23, 24) on the edge in which an O-ring (25) sealing against the housing edge (22) or the central part (8) is mounted. Brausekopf nach Anspruch 1 und Anspruch 5,
dadurch gekennzeichnet,
daß die Wasseraustrittsdüsen (5, 6, 7) auf der Bodenplatte (4) bzw. Ringscheibe auf durch den Kreismittelpunkt (19) der Bodenplatte gehenden Strahlen (20) in Zweierreihen (27, 28) versetzt zueinander ausgebildet sind.Shower head according to claim 1 and claim 5,
characterized by
that the water outlet nozzles (5, 6, 7) on the base plate (4) or annular disc on beams (20) passing through the center of the circle (19) of the base plate are offset in two rows (27, 28). Brausekopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Wasseraustrittsdüsen (5, 6, 7) je nach Entfernung vom Gehäuserand (22) unterschiedliche Austrittswinkel aufweisen.Shower head according to claim 1,
characterized by
that the water outlet nozzles (5, 6, 7) have different outlet angles depending on the distance from the housing edge (22). Brausekopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Bodenplatte (4) bzw. Ringscheibe mit dem Mittelteil (8) eine nach außen gewölbte Kugelfläche (30) bildend geformt ist.Shower head according to claim 1,
characterized by
that the base plate (4) or annular disc with the central part (8) is formed to form an outwardly curved spherical surface (30). Brausekopf nach Anspruch 1 und Anspruch 5,
dadurch gekennzeichnet,
daß die Wasseraustrittsdüsen (5, 6, 7) in Vierergruppen (31, 32) in einem vom Innenrand (33) zum Außenrand (34) fliehend verlaufenden Bogen (35) angeordnet sind.Shower head according to claim 1 and claim 5,
characterized by
that the water outlet nozzles (5, 6, 7) are arranged in groups of four (31, 32) in an arc (35) running from the inner edge (33) to the outer edge (34). Brausekopf nach Anspruch 1 - Anspruch 10,
dadurch gekennzeichnet,
daß die Bodenplatte (4) bzw. Ringscheibe aus einem eine Shore Härte von rund 90 aufweisenden Kunststoff, vorzugsweise TPE besteht.Shower head according to claim 1 - claim 10,
characterized by
that the base plate (4) or washer consists of a Shore hardness of around 90 plastic, preferably TPE.
EP95112664A 1994-09-10 1995-08-11 Easily cleanable shower head Revoked EP0700729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4432327A DE4432327C2 (en) 1994-09-10 1994-09-10 Easy to clean shower head
DE4432327 1994-09-10

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Publication Number Publication Date
EP0700729A1 true EP0700729A1 (en) 1996-03-13
EP0700729B1 EP0700729B1 (en) 2000-02-09

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EP (1) EP0700729B1 (en)
AT (1) ATE189623T1 (en)
CZ (1) CZ204295A3 (en)
DE (2) DE4432327C2 (en)
DK (1) DK0700729T3 (en)
ES (1) ES2144549T3 (en)
HU (1) HU215677B (en)
PL (1) PL177778B1 (en)

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Also Published As

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DE4432327C2 (en) 1998-07-02
PL177778B1 (en) 2000-01-31
DE4432327A1 (en) 1996-03-14
HUT72377A (en) 1996-04-29
HU215677B (en) 1999-02-01
CZ204295A3 (en) 1996-03-13
PL310309A1 (en) 1996-03-18
ATE189623T1 (en) 2000-02-15
EP0700729B1 (en) 2000-02-09
HU9502060D0 (en) 1995-09-28
DE59507772D1 (en) 2000-03-16
DK0700729T3 (en) 2000-07-24
ES2144549T3 (en) 2000-06-16

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