EP0514753B1 - Shower head - Google Patents

Shower head Download PDF

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Publication number
EP0514753B1
EP0514753B1 EP92108042A EP92108042A EP0514753B1 EP 0514753 B1 EP0514753 B1 EP 0514753B1 EP 92108042 A EP92108042 A EP 92108042A EP 92108042 A EP92108042 A EP 92108042A EP 0514753 B1 EP0514753 B1 EP 0514753B1
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EP
European Patent Office
Prior art keywords
water
spray head
shower
outlet opening
constriction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92108042A
Other languages
German (de)
French (fr)
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EP0514753A1 (en
Inventor
Bruno Heimann
Hans-Joachim Rapp
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.)
Grohe Water Technology AG and Co KG
Original Assignee
Friedrich Grohe Armaturenfabrik GmbH and Co
Friedrich Grohe AG
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Application filed by Friedrich Grohe Armaturenfabrik GmbH and Co, Friedrich Grohe AG filed Critical Friedrich Grohe Armaturenfabrik GmbH and Co
Publication of EP0514753A1 publication Critical patent/EP0514753A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0404—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet the motor comprising a movable ball
    • 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
    • B05B1/16—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 having selectively- effective outlets
    • B05B1/1627—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 having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
    • B05B1/1636—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 having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements
    • B05B1/1645—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 having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection

Definitions

  • the invention relates to a shower head for shower and bath facilities, in particular a hand shower, with a water inflow chamber which is connected to the water supply and has at least one outlet opening and a downstream shower base which contains the water jet nozzles, one by a relative movement of the shower base to the housing of the shower head Switching and / or changing the emerging shower jets takes place, and one or more outlet opening (s) parallel to the central axis of the shower head is (are) arranged on a bolt circle in a partition wall, to which a water guide disc, one or more on the upstream end face on a has corresponding hole circle arranged openings, is attached.
  • a shower head of this type is known from US-A-4754928.
  • the shower spray setting is made here by means of nozzle openings arranged in two rotatable disks, the rotational position of the two disks relative to one another being able to be determined by the user with a rotary handle led out laterally from the shower head via a gearwheel gear.
  • This gear transmission arrangement is relatively complex.
  • a shower head is known from German patent DE-C-3047336, in which the changeover is carried out with the aid of a piston arranged in a sleeve, which is arranged so as to be axially movable and cooperates with radial openings in the wall of the sleeve.
  • this device requires a relatively large amount of axial space, which is particularly undesirable in the case of hand showers.
  • the invention has for its object to improve the switching device specified in the preamble of claim 1 and in particular to design such that a simple adjustment of the water flow rate at the shower head is made possible with simple means.
  • the switching device according to the invention can advantageously be used in hand showers with three different shower jet generating devices, namely a device for generating shower jets interspersed with air, a device for generating pulsating shower jets and a device for generating normal or full shower jets.
  • a device for generating shower jets interspersed with air namely a device for generating pulsating shower jets and a device for generating normal or full shower jets.
  • two diametrically opposite openings in the form of a radial slot with throttle surfaces arranged on both sides can expediently be formed, the throttle surfaces being able to extend over an angle of 90 ° in each case.
  • an opening can then be formed in the end face of the water guide disk, which is connected on the one hand to a device for generating shower jets from a mixture of water and air and on the other hand to a device for generating pulsating shower jets .
  • throttling edges can be provided on the end face, which preferably delimit the circumference of the end face of the water guiding disk in a curved manner.
  • the openings on the face of the water guide plate are expediently placed so that a complete shut-off of the water flow is not possible, for example to avoid impermissible pressure loads in the shower head and the feed line.
  • the shower head shown in the drawing in FIG. 1 is part of a hand shower, the handle with the hose connection being located behind the plane of the drawing.
  • the shower head can also be used for a stationary shower, in which case, instead of the handle, a connection part to be provided coaxially with the central axis 3 of the shower head must be provided for the water supply.
  • a water supply chamber 1 is arranged upstream, which is guided through the handle, not shown in the drawing, and has a connection option for the hose line.
  • a holding pin 11 is welded in coaxially to the central axis 3 of the shower head.
  • a partition 10 acting as a sealing washer is non-rotatably arranged.
  • the dividing wall 10 has an outlet opening 11 with an elliptical cross section on a bolt circle 102, as can be seen, for example, from FIG. 3 of the drawing.
  • a water guide disc 2 is rotatably mounted on the holding pin 11, the axial securing device being produced by a fastening screw 20 which can be screwed into the holding pin 11.
  • the water guide disc 2 has, on a corresponding bolt circle 102 on the upstream end face, four openings arranged symmetrically to one another for the discharge of the incoming shower water, as can be seen from FIGS. 3, 5, 7 and 9.
  • Two diametrically opposite openings are made as radial slots 22 in the end face, an obliquely arranged throttle surface 21 being formed on both sides.
  • Each of the radial slots 22 extends together with the two throttle surfaces 21 over an angular range of 90 °.
  • the maximum depth or depression of the throttle surfaces 21 is approximately 0.3 the width of the radial slot 22.
  • an annular chamber 4 with jet nozzles 42 is provided concentrically to the central axis 3 for generating a normal or full shower jet.
  • a further annular chamber 5, in which nozzles 52 for generating shower jets, which consist of a mixture of water and air, is provided concentrically with the outer annular chamber 4.
  • a chamber 6 is formed centrally on the downstream region of the water guide disk 2, in which a device with nozzles 62 for generating pulsating shower jets is arranged.
  • the shower head works as follows: In the rotational position of the water guide disc 2 shown in FIG. 1, the inflowing shower water passes through the outlet opening 101 of the partition wall 10, the outlet opening 101 being located vertically above a radial slot 22, as can be seen in particular from FIGS. 3 and 2 of the drawing.
  • the inflowing water is in this case deflected radially outward in the radial slot 22 and in this case reaches the annular chamber 4 via an inlet channel 41 in accordance with the arrows 7 Normal shower jets emitted.
  • the outlet opening 101 is in the maximum opening position.
  • the outlet opening 101 passes increasingly onto one of the throttle surfaces 21, so that a reduction in the water flow rate is now increasingly achieved, as is shown in particular in the drawing Figures 4 and 5 can be seen.
  • the hardness of the normal or full shower jet can be varied through the optionally adjustable throttling of the water flow rate.
  • the infinitely variable flow regulation makes it possible to produce normal or full shower jets from soft to hard, with a high exit speed. If, on the other hand, shower jets are to be generated from a mixture of water and air, the water guide disc 2 is to be turned into a position by means of the side wall of the shower base 71, as can be seen in FIGS. 8 and 9 of the drawing.
  • the outlet opening 101 is located vertically above the inlet 23.
  • the O-ring 26 seals the other jet generation systems of the shower head.
  • the water supplied via the outlet opening 101 thus arrives directly in the direction of arrow 7 into an inlet channel 51 and from here into the annular chamber 5.
  • the shower water supplied is then spray nozzles 52, which consist of a water-air mixture, from the nozzles 52 released into the open.
  • the water guide disc is to be moved into a rotational position with the help of the side surface of the shower base 71, as can be seen in FIGS. 6 and 7 of the drawing. In this position, the outlet opening 101 is located vertically above the inlet 24.
  • the sealing to the other shower jet generating devices takes place here with the O-ring 26.
  • the shower water introduced is thus in the direction of arrow 7 via the outlet opening 101 directly through an inlet channel 61 of the chamber 6 fed and emitted from here via the nozzles 62 as pulsating shower jets.
  • the openings formed on the end face of the water guide disc 2, namely the two radial slots 22 with the associated throttle surfaces 21 and the inlets 23, 24, are arranged such that a minimum amount of shower water can emerge from the shower head in each rotational position. This ensures that impermissible pressure loads in the area of the shower head and the shower water supply as well as water hammer generated by a quick changeover are avoided.
  • the arrangement of the sealing rings 26 in the area of the inlets 24 and 23 ensures that each shower jet generating device of the shower head can be operated separately without leak water escaping through the other jet generating devices.
  • FIGS. 10 to 13 A modified embodiment of the water guide disk 2 is shown in FIGS. 10 to 13.
  • curved throttle edges 210 are formed on the end face wall, which, depending on the rotational position over a certain angle of rotation, enables an approximately continuous reduction or enlargement of the passage cross section of the outlet opening 101.
  • FIGS. 10 and 11 show the passage cross section in the fully open position, in FIGS. 12 and 13 in a throttled position. The throttling process extends approximately over an angle of rotation of 60 °.

Landscapes

  • Nozzles (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Domestic Plumbing Installations (AREA)
  • Massaging Devices (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Paper (AREA)
  • External Artificial Organs (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

In a shower head for shower devices and bath devices having a water feed chamber (1) which has at least one outlet opening and is connected to the water supply, and a shower floor (71) which is connected downstream and contains the water jet nozzles, changing-over and/or altering the emerging shower jets takes place by means of a relative movement of the shower floor (71) with respect to the housing of the shower head, in order to improve and reduce the space required for the changing-over device it is proposed that the outlet opening (101) be arranged in a dividing wall (10) on a hole circle (102) parallel to the central axis of the shower head, on which dividing wall a water directing disc (2) is mounted, which has one or more openings (22, 23, 24) arranged on the upstream-side end side on a corresponding hole circle, at least one opening extending from the end side in the direction of the arc of the hole circle having an oblique recess (21), which acts as a restrictor surface, or a restrictor edge (210) so that continuously variable restriction of the amount of water flowing through at this opening can be set by means of a specific angle of rotation. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Brausekopf für Dusch- und Badeeinrichtungen, insbesondere Handbrause, mit einer mit der Wasserversorgung in Verbindung stehenden, wenigstens eine Austrittsöffnung aufweisenden Wasserzuflußkammer und einem nachgeschalteten, die Wasserstrahldüsen enthaltenden Brauseboden, wobei durch eine Relativbewegung des Brausebodens zum Gehäuse des Brausekopfes eine Umschaltung und/oder Veränderung der austretenden Brausestrahlen erfolgt, und eine oder mehrere Austrittsöffnung(en) parallel zur Mittelachse des Brausekopfes auf einem Lochkreis in einer Trennwand angeordnet ist (sind), an welche eine Wasserführungsscheibe, die eine oder mehrere an der stromaufwärtigen Stirnseite auf einem entsprechenden Lochkreis angeordnete Öffnungen hat, angelagert ist.
Ein Brausekopf dieser Gattung ist aus der US-A-4754928 bekannt. Hierbei erfolgt die Brausestrahleinstellung durch in zwei zueinander verdrehbaren Scheiben angeordneten Düsenöffnungen, wobei vom Benutzer mit einem seitlich aus dem Brausekopf herausgeführten Drehgriff über ein Zahnradgetriebe die Drehstellung der beiden Scheiben zueinander bestimmbar ist. Diese Zahnradgetriebeanordnung ist relativ aufwendig.The invention relates to a shower head for shower and bath facilities, in particular a hand shower, with a water inflow chamber which is connected to the water supply and has at least one outlet opening and a downstream shower base which contains the water jet nozzles, one by a relative movement of the shower base to the housing of the shower head Switching and / or changing the emerging shower jets takes place, and one or more outlet opening (s) parallel to the central axis of the shower head is (are) arranged on a bolt circle in a partition wall, to which a water guide disc, one or more on the upstream end face on a has corresponding hole circle arranged openings, is attached.
A shower head of this type is known from US-A-4754928. The shower spray setting is made here by means of nozzle openings arranged in two rotatable disks, the rotational position of the two disks relative to one another being able to be determined by the user with a rotary handle led out laterally from the shower head via a gearwheel gear. This gear transmission arrangement is relatively complex.

Ferner ist aus der deutschen Patentschrift DE-C-3047336 ein Brausekopf bekannt, bei dem die Umstellung mit Hilfe eines in einer Hülse angeordneten Kolbens erfolgt, der axial bewegbar angeordnet und mit radialen Öffnungen in der Wandung der Hülse zusammenwirkt. Insbesondere wegen des verschiebbaren Kolbens benötigt diese Einrichtung einen axial relativ großen Platzbedarf, was insbesondere bei Handbrausen unerwünscht ist.Furthermore, a shower head is known from German patent DE-C-3047336, in which the changeover is carried out with the aid of a piston arranged in a sleeve, which is arranged so as to be axially movable and cooperates with radial openings in the wall of the sleeve. In particular because of the displaceable piston, this device requires a relatively large amount of axial space, which is particularly undesirable in the case of hand showers.

Der Erfindung liegt die Aufgabe zugrunde, die im Oberbegriff des Anspruchs 1 angegebene Umschaltvorrichtung zu verbessern und insbesondere so auszubilden, daß mit einfachen Mitteln eine feinfühlige Einstellung der Wasserdurchflußmenge am Brausekopf ermöglicht wird.The invention has for its object to improve the switching device specified in the preamble of claim 1 and in particular to design such that a simple adjustment of the water flow rate at the shower head is made possible with simple means.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 oder 2 gelöst.
Weitere Ausgestaltungen der Erfindung sind in den Ansprüchen 3 bis 9 angegeben.This object is achieved with the features of claim 1 or 2.
Further refinements of the invention are specified in claims 3 to 9.

Vorteilhaft kann die erfindungsgemäße Umschalteinrichtung bei Handbrausen mit drei verschiedenen Brausestrahlerzeugungseinrichtungen, nämlich einer Einrichtung zur Erzeugung von mit Luft durchsetzten Brausestrahlen, einer Einrichtung zur Erzeugung von pulsierenden Brausestrahlen und einer Einrichtung zur Erzeugung von Normal- bzw. Vollbrausestrahlen, eingesetzt werden.
Zweckmäßig können hierbei für Vollbrausestrahlen zwei diametral gegenüberliegende Öffnungen in Form eines Radialschlitzes mit V-förmig zu beiden Seiten angeordneten Drosselflächen ausgebildet werden, wobei sich die Drosselflächen etwa über einen Winkel von 90° jeweils erstrecken können. Jeweils um 90° zu den Radialschlitzen versetzt, kann dann jeweils eine Öffnung in der Stirnfläche der Wasserführungsscheibe ausgebildet sein, die einerseits mit einer Einrichtung zur Erzeugung von Brausestrahlen aus einem Gemisch von Wasser und Luft und andererseits mit einer Einrichtung zur Erzeugung von pulsierenden Brausestrahlen verbunden ist. Alternativ können auch anstatt von Drosselflächen Drosselkanten an der Stirnseite vorgesehen werden, die vorzugsweise den Umfang der Stirnseite der Wasserführungsscheibe kurvenförmig begrenzen.
Die Öffnungen auf der Stirnseite der Wasserführungsscheibe sind dabei zweckmäßigerweise so plaziert, daß eine völlige Absperrung des Wasserdurchflusses nicht ermöglicht wird, um z.B. unzulässige Druckbelastungen im Brausekopf und der Zuführungsleitung zu vermeiden.The switching device according to the invention can advantageously be used in hand showers with three different shower jet generating devices, namely a device for generating shower jets interspersed with air, a device for generating pulsating shower jets and a device for generating normal or full shower jets.
For full shower jets, two diametrically opposite openings in the form of a radial slot with throttle surfaces arranged on both sides can expediently be formed, the throttle surfaces being able to extend over an angle of 90 ° in each case. In each case offset by 90 ° to the radial slots, an opening can then be formed in the end face of the water guide disk, which is connected on the one hand to a device for generating shower jets from a mixture of water and air and on the other hand to a device for generating pulsating shower jets . Alternatively, instead of throttling surfaces, throttling edges can be provided on the end face, which preferably delimit the circumference of the end face of the water guiding disk in a curved manner.
The openings on the face of the water guide plate are expediently placed so that a complete shut-off of the water flow is not possible, for example to avoid impermissible pressure loads in the shower head and the feed line.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigt

Figur 1
einen Brausekopf einer Handbrause im Schnitt;
Figur 2
die in Figur 1 gezeigte Wasserführungsscheibe in vergrößerter Darstellung in Seitenansicht, wobei die Trennwand im Bereich der Durchtrittsöffnung geschnitten dargestellt ist;
Figur 3
die Wasserführungsscheibe gemäß Figur 2 in Draufsicht;
Figur 4
die Wasserführungsscheibe gemäß Figur 2 in einer Drosselstellung des Wasserzuflusses zur Erzeugung eines Vollbrausestrahls;
Figur 5
die Wasserführungsscheibe gemäß Figur 4 in Draufsicht;
Figur 6
die Wasserführungsscheibe mit der Trennwand nach Figur 1 im Längsschnitt in der Drehstellung zur Erzeugung von pulsierenden Brausestrahlen;
Figur 7
die Wasserführungsscheibe gemäß Figur 6 in Draufsicht;
Figur 8
die Wasserführungsscheibe mit der Trennwand nach Figur 1 im Längsschnitt in der Drehstellung zur Abgabe von Wasser zur Erzeugung von Brausestrahlen aus einem Wasser-Luft-Gemisch;
Figur 9
die Wasserführungsscheibe gemäß Figur 8 in Draufsicht.
Figur 10
eine andere Wasserführungsscheibe mit der in Figur 1 gezeigten Trennwand als Dichtscheibe in Schnitt;
Figur 11
die Wasserführungsscheibe gemäß Figur 11 in Draufsicht;
Figur 12
die in Figur 10 gezeigte Anordnung von Trennwand und Wasserführungsscheibe in einer Drosselstellung;
Figur 13
die Wasserführungsscheibe gemäß Figur 12 in Draufsicht.
Embodiments of the invention are shown in the drawing and are described in more detail below. It shows
Figure 1
a shower head of a hand shower in section;
Figure 2
the water guide disk shown in Figure 1 in an enlarged view in side view, the partition wall is shown in section in the passage opening;
Figure 3
the water guide disc of Figure 2 in plan view;
Figure 4
the water guide disc according to Figure 2 in a throttle position of the water inflow to generate a full shower spray;
Figure 5
the water guide disc according to Figure 4 in plan view;
Figure 6
the water guide disc with the partition according to Figure 1 in longitudinal section in the rotational position for generating pulsating shower jets;
Figure 7
the water guide plate according to Figure 6 in plan view;
Figure 8
the water guide disc with the partition according to Figure 1 in longitudinal section in the rotational position for dispensing water for generating shower jets from a water-air mixture;
Figure 9
the water guide plate according to Figure 8 in plan view.
Figure 10
another water guide disc with the partition shown in Figure 1 as a sealing washer in section;
Figure 11
the water guide plate according to Figure 11 in plan view;
Figure 12
the arrangement shown in Figure 10 of partition and water guide plate in a throttle position;
Figure 13
the water guide plate according to Figure 12 in plan view.

Der Einfachheit halber sind bei den Ausführungsbeispielen in der Zeichnung gleiche oder entsprechende Elemente mit jeweils gleichen Bezugszeichen versehen.
Der in der Zeichnung der Figur 1 dargestellte Brausekopf ist Teil einer Handbrause, wobei der Handgriff mit dem Schlauchanschluß sich hinter der Zeichenebene befindet. Selbstverständlich kann der Brausekopf aber auch für eine Stationärbrause eingesetzt werden, wobei dann anstatt des Handgriffs ein koaxial zur Mittelachse 3 des Brausekopfes auszubildendes Anschlußteil für die Wasserversorgung vorzusehen ist.For the sake of simplicity, the same or corresponding elements are provided with the same reference numerals in the exemplary embodiments in the drawing.
The shower head shown in the drawing in FIG. 1 is part of a hand shower, the handle with the hose connection being located behind the plane of the drawing. Of course, the shower head can also be used for a stationary shower, in which case, instead of the handle, a connection part to be provided coaxially with the central axis 3 of the shower head must be provided for the water supply.

Bei dem in Figur 1 gezeigten Brausekopf ist stromaufwärts eine Wasserzuführungskammer 1 angeordnet, die durch das in der Zeichnung nicht dargestellte Griffstück geführt ist und eine Anschlußmöglichkeit für die Schlauchleitung aufweist. An der stromabwärts gelegenen Seite der Wasserzuführungskammer 1 ist ein Haltezapfen 11 koaxial zur Mittelachse 3 des Brausekopfes eingeschweißt. Auf dem Haltezapfen 11 ist eine als Dichtscheibe wirkende Trennwand 10 unverdrehbar angeordnet. Die Trennwand 10 hat auf einem Lochkreis 102 eine Austrittsöffnung 11 mit elliptischem Querschnitt, wie es beispielsweise aus Figur 3 der Zeichnung zu entnehmen ist.
An der stromabwärts gelegenen Stirnseite der Trennwand 10 ist eine Wasserführungsscheibe 2 drehbar auf dem Haltezapfen 11 angelagert, wobei die Axialsicherung von einer in den Haltezapfen 11 einschraubbaren Befestigungsschraube 20 hergestellt ist. Die Wasserführungsscheibe 2 hat auf einem entsprechenden Lochkreis 102 an der stromaufwärts gelegenen Stirnseite vier symmetrisch zueinander angeordnete Öffnungen zur Abführung des zufließenden Brausewassers, wie es aus den Figuren 3,5,7 und 9 zu entnehmen ist. Zwei diametral gegenüberliegende Öffnungen sind als Radialschlitze 22 in der Stirnfläche eingelassen, wobei zu beiden Seiten eine schräg angeordnete Drosselfläche 21 ausgebildet ist. Jeder der Radialschlitze 22 streckt sich zusammen mit den beiden Drosselflächen 21 über einen Winkelbereich von 90°. Die maximale Tiefe bzw. Einsenkung der Drosselflächen 21 beträgt etwa 0,3 der Breite des Radialschlitzes 22.
Um 90° versetzt zu den beiden diametral angeordneten Radialschlitzen 22 befindet sich jeweils ein entsprechend dem Querschnitt der Austrittsöffnung 101 ausgebildeter Einlaß 23,24. Konzentrisch zu den beiden Einlässen 23,24 ist in der Stirnseite jeweils eine Nut 25 zur Aufnahme eines O-Rings 26 eingelassen.
An dem stromabwärts gelegenen Bereich der Wasserführungsscheibe 2 ist konzentrisch zur Mittelachse 3 eine Ringkammer 4 mit Strahldüsen 42 zur Erzeugung eines Normal- oder Vollbrausestrahles vorgesehen. Konzentrisch zur äußeren Ringkammer 4 ist eine weitere Ringkammer 5, in der Düsen 52 zur Erzeugung von Brausestrahlen, die aus einem Gemisch von Wasser und Luft bestehen, vorgesehen. Schließlich ist zentral am stromabwärts gelegenen Bereich der Wasserführungsscheibe 2 eine Kammer 6 ausgebildet, in der eine Vorrichtung mit Düsen 62 zur Erzeugung von pulsierend austretenden Brausestrahlen angeordnet ist.In the shower head shown in Figure 1, a water supply chamber 1 is arranged upstream, which is guided through the handle, not shown in the drawing, and has a connection option for the hose line. On the downstream side of the water supply chamber 1, a holding pin 11 is welded in coaxially to the central axis 3 of the shower head. On the retaining pin 11, a partition 10 acting as a sealing washer is non-rotatably arranged. The dividing wall 10 has an outlet opening 11 with an elliptical cross section on a bolt circle 102, as can be seen, for example, from FIG. 3 of the drawing.
On the downstream end of the partition 10, a water guide disc 2 is rotatably mounted on the holding pin 11, the axial securing device being produced by a fastening screw 20 which can be screwed into the holding pin 11. The water guide disc 2 has, on a corresponding bolt circle 102 on the upstream end face, four openings arranged symmetrically to one another for the discharge of the incoming shower water, as can be seen from FIGS. 3, 5, 7 and 9. Two diametrically opposite openings are made as radial slots 22 in the end face, an obliquely arranged throttle surface 21 being formed on both sides. Each of the radial slots 22 extends together with the two throttle surfaces 21 over an angular range of 90 °. The maximum depth or depression of the throttle surfaces 21 is approximately 0.3 the width of the radial slot 22.
There is an inlet 23, 24 designed in accordance with the cross section of the outlet opening 101, offset from the two diametrically arranged radial slots 22. Concentric to the two inlets 23, 24 there is a groove 25 in the end face for receiving an O-ring 26 embedded.
At the downstream area of the water guide disc 2, an annular chamber 4 with jet nozzles 42 is provided concentrically to the central axis 3 for generating a normal or full shower jet. A further annular chamber 5, in which nozzles 52 for generating shower jets, which consist of a mixture of water and air, is provided concentrically with the outer annular chamber 4. Finally, a chamber 6 is formed centrally on the downstream region of the water guide disk 2, in which a device with nozzles 62 for generating pulsating shower jets is arranged.

Der Brausekopf hat folgende Funktionsweise:
In der in Figur 1 gezeigten Drehstellung der Wasserführungsscheibe 2 tritt das zuströmende Brausewasser durch die Austrittsöffnung 101 der Trennwand 10 hindurch, wobei die Austrittsöffnung 101 sich senkrecht über einem Radialschlitz 22 befindet, wie es insbesondere aus Figur 3 und 2 der Zeichnung zu entnehmen ist. Das zuströmende Wasser wird hierbei in dem Radialschlitz 22 radial nach außen umgelenkt und gelangt hierbei entsprechend der Pfeile 7 über einen Zulaufkanal 41 in die Ringkammer 4. Von hier aus wird das zugeführte Wasser über die ringförmig über den Brausebodenbereich 71 geordneten Strahldüsen 42 als Voll- oder Normalbrausestrahlen abgegeben. In dieser, insbesondere aus Figur 2 und 3 zu entnehmenden Stellung befindet sich die Austrittsöffnung 101 in der maximalen Öffnungsstellung. Wird nun mit Hilfe seiner Seitenfläche der Brauseboden 71 gedreht, so gelangt die Austrittsöffnung 101 verstärkt auf eine der Drosselfächen 21, so daß nunmehr zunehmend eine Reduzierung der Wasserdurchflußmenge erreicht wird, wie es insbesondere aus der Zeichnung Figur 4 und 5 zu entnehmen ist. Durch die wahlweise einstellbare Drosselung der Wasserdurchflußmenge kann der Normal- oder Vollbrausestrahl in seiner Härte variiert werden. Es ist somit durch die stufenlose Durchflußregulierung möglich, von weichen bis zu harten, eine hohe Austrittsgeschwindigkeit aufweisende Normal- oder Vollbrausestrahlen zu erzeugen.
Sollen dagegen Brausestrahlen aus einem Gemisch von Wasser und Luft erzeugt werden, so ist die Wasserführungsscheibe 2 mit Hilfe der Seitenwandung des Brausebodens 71 in eine Stellung zu verdrehen, wie sie aus Figur 8 und 9 der Zeichnung zu entnehmen ist. In dieser Drehstellung befindet sich die Austrittsöffnung 101 senkrecht über dem Einlaß 23. Mit dem O-Ring 26 ist hierbei eine Abdichtung zu den anderen Strahlerzeugungssystemen des Brausekopfes bewerkstelligt. Das über die Austrittsöffnung 101 zugeführte Wasser gelangt somit in Richtung des Pfeils 7 unmittelbar in einen Zulaufkanal 51 und von hier aus in die Ringkammer 5. Das zugeführte Brausewasser wird hiernach als Brausestrahlen, die aus einem Wasser-Luft-Gemisch bestehen, von den Düsen 52 ins Freie abgegeben.
Soll alternativ ein pulsierender Brausestrahl mit dem Brausekopf erzeugt werden, so ist die Wasserführungsscheibe mit Hilfe der Seitenfläche des Brausebodens 71 in eine Drehstellung zu bewegen, wie sie aus Figur 6 und 7 der Zeichnung zu entnehmen ist. In dieser Stellung befindet sich die Austrittsöffnung 101 senkrecht über dem Einlaß 24. Die Abdichtung zu den anderen Brausestrahlerzeugungseinrichtungen erfolgt hierbei mit dem O-Ring 26. Das herangeführte Brausewasser wird somit in Richtung des Pfeils 7 über die Austrittsöffnung 101 direkt durch einen Zulaufkanal 61 der Kammer 6 zugeleitet und von hier über die Düsen 62 als pulsierende Brausestrahlen abgegeben.The shower head works as follows:
In the rotational position of the water guide disc 2 shown in FIG. 1, the inflowing shower water passes through the outlet opening 101 of the partition wall 10, the outlet opening 101 being located vertically above a radial slot 22, as can be seen in particular from FIGS. 3 and 2 of the drawing. The inflowing water is in this case deflected radially outward in the radial slot 22 and in this case reaches the annular chamber 4 via an inlet channel 41 in accordance with the arrows 7 Normal shower jets emitted. In this position, which can be seen in particular from FIGS. 2 and 3, the outlet opening 101 is in the maximum opening position. If the shower base 71 is now rotated with the aid of its side surface, the outlet opening 101 passes increasingly onto one of the throttle surfaces 21, so that a reduction in the water flow rate is now increasingly achieved, as is shown in particular in the drawing Figures 4 and 5 can be seen. The hardness of the normal or full shower jet can be varied through the optionally adjustable throttling of the water flow rate. The infinitely variable flow regulation makes it possible to produce normal or full shower jets from soft to hard, with a high exit speed.
If, on the other hand, shower jets are to be generated from a mixture of water and air, the water guide disc 2 is to be turned into a position by means of the side wall of the shower base 71, as can be seen in FIGS. 8 and 9 of the drawing. In this rotational position, the outlet opening 101 is located vertically above the inlet 23. In this case, the O-ring 26 seals the other jet generation systems of the shower head. The water supplied via the outlet opening 101 thus arrives directly in the direction of arrow 7 into an inlet channel 51 and from here into the annular chamber 5. The shower water supplied is then spray nozzles 52, which consist of a water-air mixture, from the nozzles 52 released into the open.
If, alternatively, a pulsating shower jet is to be generated with the shower head, the water guide disc is to be moved into a rotational position with the help of the side surface of the shower base 71, as can be seen in FIGS. 6 and 7 of the drawing. In this position, the outlet opening 101 is located vertically above the inlet 24. The sealing to the other shower jet generating devices takes place here with the O-ring 26. The shower water introduced is thus in the direction of arrow 7 via the outlet opening 101 directly through an inlet channel 61 of the chamber 6 fed and emitted from here via the nozzles 62 as pulsating shower jets.

Die auf der Stirnseite der Wasserführungsscheibe 2 ausgebildeten Öffnungen, nämlich die beiden Radialschlitze 22 mit den zugehörigen Drosselflächen 21 und den Einlässen 23,24, sind so angeordnet, daß in jeder Drehstellung eine Mindestmenge von Brausewasser aus dem Brausekopf austreten kann. Hierdurch ist sichergestellt, daß unzulässige Druckbelastungen im Bereich des Brausekopfes und der Brausewasserzuführung sowie durch eine schnelle Umstellung erzeugte Wasserschläge vermieden werden. Andererseits ist aber durch die Anordnung der Dichtringe 26 im Bereich der Einlässe 24 und 23 sichergestellt, daß jede Brausestrahlerzeugungseinrichtung des Brausekopfes separat betrieben werden kann, ohne daß Leckwasser über die anderen Strahlerzeugungseinrichtungen austritt.The openings formed on the end face of the water guide disc 2, namely the two radial slots 22 with the associated throttle surfaces 21 and the inlets 23, 24, are arranged such that a minimum amount of shower water can emerge from the shower head in each rotational position. This ensures that impermissible pressure loads in the area of the shower head and the shower water supply as well as water hammer generated by a quick changeover are avoided. On the other hand, the arrangement of the sealing rings 26 in the area of the inlets 24 and 23 ensures that each shower jet generating device of the shower head can be operated separately without leak water escaping through the other jet generating devices.

In den Figuren 10 bis 13 ist eine abgewandelte Ausführung der Wasserführungsscheibe 2 gezeigt. Anstatt der Radialschlitze 22 mit den zugehörigen Drosselflächen 21 sind an der Stirnflächenwandung kurvenförmige Drosselkanten 210 ausgebildet, die in Abhängigkeit von der Drehstellung über einen bestimmten Drehwinkel eine etwa stetige Verringerung bzw. Vergrößerung des Durchgangsquerschnitts der Austrittsöffnung 101 ermöglicht. In den Figuren 10 und 11 ist der Durchgangsquerschnitt in der voll geöffneten, in den Figuren 12 und 13 in einer gedrosselten Stellung dargestellt. Der Drosselvorgang erstreckt sich hierbei etwa über einen Drehwinkel von 60°.A modified embodiment of the water guide disk 2 is shown in FIGS. 10 to 13. Instead of the radial slots 22 with the associated throttle surfaces 21, curved throttle edges 210 are formed on the end face wall, which, depending on the rotational position over a certain angle of rotation, enables an approximately continuous reduction or enlargement of the passage cross section of the outlet opening 101. FIGS. 10 and 11 show the passage cross section in the fully open position, in FIGS. 12 and 13 in a throttled position. The throttling process extends approximately over an angle of rotation of 60 °.

Claims (9)

  1. Spray head for shower and bath arrangements, especially a hand-held spray fitting, having a water inflow chamber (1) which is connected to the water supply and has at least one outlet opening, and having a spray base (71), arranged downstream and containing the water jet nozzles (42), wherein by means of a movement of the spray base (71) relative to the housing of the spray head a switching-over and/or alteration of the spray jets emerging occurs, and one or more outlet opening(s) (101) is (are) arranged parallel to the central axis (3) of the spray head on a hole circle (102) in a partition wall (10), on which there is mounted a water guide disc (2) which has one or more openings arranged on the upstream end face on a corresponding hole circle (102), characterised in that at least in a switch-over region there is an adjustable constriction of the incoming water flow and at least one opening, in the form of a radial slot (22), has in the direction of the arc of the hole circle a recess from the end face which is formed by inclined constriction surfaces (21), arranged approximately in a V-shape, on both sides of the opening, in the form of a radial slot (22), in the end face of the water guide disc (2).
  2. Spray head for shower and bath arrangements, especially a hand-held spray fitting, having a water inflow chamber (1) which is connected to the water supply and has at least one outlet opening, and having a spray base (71), arranged downstream and containing the water jet nozzles (42), wherein by means of a movement of the spray base (71) relative to the housing of the spray head a switching-over and/or alteration of the spray jets emerging occurs, and one or more outlet opening(s) (101) is (are) arranged parallel to the central axis (3) of the spray head on a hole circle (102) in a partition wall (10), on which there is mounted a water guide disc (2) which has one or more openings arranged on the upstream end face on a corresponding hole circle (102), characterised in that at least in a switch-over region there is an adjustable constriction of the incoming water flow and at least one opening in the direction of the arc of the hole circle has a constriction edge (210), the constriction edge (210) being curved in shape so that, depending on the angle of rotation, an approximately constant increase or decrease in the passage cross-section of the outlet opening (101) occurs.
  3. Spray head according to Claim 1 or 2, characterised in that the outlet opening (101) and the openings of the water guide disc (2) are of such dimensions that in every rotational position of the water guide disc (2) a minimum amount of water emerges from the spray head.
  4. Spray head according to Claim 1 or 3, characterised in that the inclined constriction surfaces (21) extend over an angle of approximately 90°.
  5. Spray head according to Claim 1, 3 or 4, characterised in that the depression of the constriction surfaces (21) has a depth of approximately 0.3 of the width of the radial slot (22).
  6. Spray head according to Claim 2 or 3, characterised in that the constriction edge (210) is so formed that the constriction process extends over a rotation angle of approximately 40° to 90°, preferably 60°.
  7. Spray head according to one of Claims 1 to 6, characterised in that the outlet opening (101) has an elliptical cross-section.
  8. Spray head according to one of Claims 1 to 7, characterised in that the recess with the radial slot (22) or the constriction edge (210) is formed twice so as to be diametrically opposed on the end face of the water guide disc (2) and, offset by 90° to the radial slots (22) or the constriction edges (210), there is arranged in each case an inlet (23, 24), formed to correspond to the cross-section of the outlet opening (101), for guiding the water to a second and a third jet producing system.
  9. Spray head according to Claim 8, characterised in that the inlets (23, 24) have an elliptical cross-section and are in each case surrounded by a circumferential groove (25) to receive an O-ring (26), so that sealing to the partition wall (10) is provided.
EP92108042A 1991-05-24 1992-05-13 Shower head Expired - Lifetime EP0514753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4116930A DE4116930A1 (en) 1991-05-24 1991-05-24 SHOWER HEAD
DE4116930 1991-05-24

Publications (2)

Publication Number Publication Date
EP0514753A1 EP0514753A1 (en) 1992-11-25
EP0514753B1 true EP0514753B1 (en) 1995-07-12

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EP92108042A Expired - Lifetime EP0514753B1 (en) 1991-05-24 1992-05-13 Shower head

Country Status (7)

Country Link
US (1) US5246169A (en)
EP (1) EP0514753B1 (en)
AT (1) ATE124888T1 (en)
DE (2) DE4116930A1 (en)
DK (1) DK0514753T3 (en)
ES (2) ES2077289T3 (en)
GR (1) GR3017018T3 (en)

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Also Published As

Publication number Publication date
US5246169A (en) 1993-09-21
EP0514753A1 (en) 1992-11-25
ATE124888T1 (en) 1995-07-15
DE59202853D1 (en) 1995-08-17
DK0514753T3 (en) 1995-11-27
DE4116930A1 (en) 1992-11-26
ES1021281U (en) 1992-11-01
ES2077289T3 (en) 1995-11-16
GR3017018T3 (en) 1995-11-30
ES1021281Y (en) 1993-04-01

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