EP0060540B1 - Device for the creation of a plurality of aerated water jets, especially a shower rose - Google Patents

Device for the creation of a plurality of aerated water jets, especially a shower rose Download PDF

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Publication number
EP0060540B1
EP0060540B1 EP82102033A EP82102033A EP0060540B1 EP 0060540 B1 EP0060540 B1 EP 0060540B1 EP 82102033 A EP82102033 A EP 82102033A EP 82102033 A EP82102033 A EP 82102033A EP 0060540 B1 EP0060540 B1 EP 0060540B1
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EP
European Patent Office
Prior art keywords
jet
individual
section
obstacles
jets
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Expired
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EP82102033A
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German (de)
French (fr)
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EP0060540A1 (en
Inventor
Werner Finkbeiner
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Hansgrohe SE
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Hansgrohe SE
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Priority to AT82102033T priority Critical patent/ATE9919T1/en
Publication of EP0060540A1 publication Critical patent/EP0060540A1/en
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Publication of EP0060540B1 publication Critical patent/EP0060540B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/04Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084Jet regulators with aerating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14Nozzles, 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
    • B05B1/18Roses; Shower heads

Definitions

  • the invention relates to a device for forming a plurality of aerated jets, in particular a shower head, with a device for generating unventilated individual jets, at least one space underneath for the access of air and a plurality of through-channels with obstacles for disassembly protruding into the path of the individual jets the single rays.
  • Known devices for producing aerated water jets generally have a perforated plate, under which at least one wire screen is arranged at a distance, which causes the individual jets emerging from the perforated plate to be separated and mixed with the air.
  • the mesh size of the sieve is kept so that the sieve openings are smaller than the holes in the perforated plate, so that dirt particles carried along from the line get caught in the sieve and cause a disturbance in the jet pattern or a reduction in water penetration.
  • the calcification works in the same sense, which progresses very quickly in the case of narrow-mesh sieves and, in the case of calcareous water, quickly leads to a flow reduction in which it is no longer possible to draw in a sufficient amount of air.
  • a hand shower with devices for forming aerated jets is also known.
  • a plate-like beam splitter element with a concave surface the diameter of which is a multiple of the diameter of the outlet opening for the single jet, is introduced axially into the path of the single jet as an obstacle to the decomposition of a single jet in a through-channel, so that the jet impinges directly on the plate and is reflected by it.
  • the invention is therefore based on the object of providing a device for forming aerated water jets which does not require a sieve and in which the water jets are nevertheless braked as little as possible.
  • the object is achieved in that at least two individual jets are directed onto each channel 7, the channels 7 have an essentially central passage opening in the axial direction, the clear diameter of which is larger than that of an unvented single jet, the exit direction of at least one single jet offset from the axis the passage opening is directed into the channel and the obstacles 14; 20; 27, 28; 37, 38; 48, 49 protrude laterally from the channel wall into the path of at least one individual beam to split the individual beams.
  • the result of this is that the individual beam is not reflected when it is decomposed, but is merely deflected, that is to say at least partially retains its original direction of movement, but is nevertheless decomposed to such an extent that satisfactory air absorption and mixing with air take place.
  • the section of the channel that divides the individual beams preferably has discontinuous, in particular abrupt, cross-sectional reductions that can run in a step-like manner.
  • the impact surface of the obstacles is preferably inclined perpendicular to the beam direction or in the beam direction. If it is perpendicular to the beam direction, then the obstacle preferably projects only so far into the path of a single beam that it is only partially detected. Since several individual jets are used to generate a single aerated jet, the deflected individual jets mutually influence one another at the same time, which further promotes the mixing of the intake air. Furthermore, beam guiding elements are advantageously provided according to the invention, by means of which the aerated jets can still be influenced.
  • At least one beam swirling section is advantageously provided subsequent to the section serving to split the beams, which section preferably has at least one cross-sectional expansion, which can be abrupt and z. B. can be formed as an undercut provided on the channel wall.
  • a shaping section is advantageously provided which has at least one cylindrical section.
  • the beam shaping section preferably has step-shaped and / or conical cross-sectional reductions, which are advantageously provided in front of the cylindrical section (viewed in the beam direction).
  • the devices are the ones that generate the individual beams Holes of the device are arranged eccentrically with respect to the axis or the axes of the beam guiding elements and are deflected by the likewise eccentrically arranged obstacles in the direction of the longitudinal axes of the beam guiding elements.
  • This allows friction losses to be kept low.
  • the passage cross section through the beam guiding elements is not adjusted by the obstacles, which are generally arranged at the edge of the openings, as is the case with the known shower device. Rather, the clear cross section of the beam guiding elements, in particular the diameter of the straight free passage through the entire channel, is always several times larger than the diameter of the beam-forming holes, as a result of which a risk of clogging is avoided.
  • the ventilated jet is also always influenced further from the outer edge, in particular with the aid of cross-sectional expansions and / or constrictions of various designs.
  • the holes for forming the individual beams generally have a diameter of approximately 0.5 mm to 2.5 mm and can have different cross-sectional shapes. It can also be advantageous to provide, in a manner known per se, a disruptive element for the individual jets in order to unsettle the jet or to give it a twist, for example in the bore itself or at the inlet of the water into the corresponding bore or passage opening. As a rule, three to ten holes are provided for individual beams per channel.
  • the height of the air space between the nozzles or holes forming the individual jets and the obstacles dividing the individual jets can vary within wide limits and is generally 0.5 mm to 5 mm, preferably up to 3 mm, but can also be considerably larger.
  • the outlet cross section of the aerated jet or the inside diameter of a jet former that may be provided for this purpose can also be varied within wide limits and is generally 2 mm to 15 mm, preferably approximately 4 mm to 6 mm.
  • the input cross section or input diameter of the beam guiding elements or of a passage channel formed by them, which is provided for receiving the individual beams to be divided, is generally larger and normally has a clear width of 4 mm to 20 mm, preferably 6 mm to 12 mm.
  • Step-shaped cross-sectional constrictions which can serve to form the obstacles, but also step-shaped cross-sectional enlargements or undercuts are preferably in the order of 5% to 25%, preferably 10% to 20%, of the clear width of the adjacent guide elements or sections of the channel, of course several constrictions and / or extensions can follow one another.
  • conical extensions and / or constrictions in which the angle of inclination to the longitudinal axis of the individual beams is generally approximately 30 ° to 60 °, preferably approximately 45 °.
  • a shower head or another nozzle body In general, at least 5, preferably 10 to 50, individual devices for generating a ventilated jet are combined in a shower head or another nozzle body.
  • the individual beams can emerge inclined to one another, in particular diverging.
  • the depth of the obstacles with which they protrude laterally into the passage channel or protrude behind a preceding obstacle or wall part is normally 1/4 to three times, preferably 1/2 to the simple, the clear width of a beam-forming hole.
  • the steps are preferably connected to one another so that they represent closed stairs, the step steps being able to be connected from the front edge to the rear edge or from the rear edge to the rear edge.
  • a shower head 1 does not have any other shown shower or massage devices on a device for generating ventilated rays.
  • a plurality of parallel water jet-forming holes 4 are provided in the shower body 2, which is provided with a switchable water inlet 3, which are arranged on an arc-shaped ring 5.
  • a switchable water inlet 3 which are arranged on an arc-shaped ring 5.
  • Each passage channel 7 has a beam splitting section 8, a swirling section 9 and a calming section 10, each of which is formed by correspondingly shaped openings in rings 11, 12 and 13 lying one on top of the other.
  • the beam generating section 8 has an eccentric, step-like four arc-shaped steps 14, which is similar to an amphitheater and has a step 15, which lies below the holes 4 of the ring 5 assigned to it and forms an obstacle to the full individual beams emerging through the holes 4 and divides them and deflects them laterally, whereby the entire cross section of the passage 7 is filled and the sucked air is entrained in the form of bubbles.
  • the swirling section 9 formed by the openings in the ring 12 has a conical taper 16 with an adjoining substantially identical conical widening, whereby, what is important, the input cross section of the opening of the swirling section 9 is larger than the output cross section of the beam splitting section 8, so that an undercut 17 forms at the transition of the two sections.
  • This undercut ensures good turbulence and mixing of air and water, which is further promoted by the taper in the vortex section.
  • the input cross-section of the subsequent calming section 10 essentially corresponds to the output cross-section of the vortex section 9, ie following the narrowing of the vortex section, the flow velocity of the aerated jet is somewhat slowed down by the cross-sectional widening, so that calming already occurs here.
  • the section of the passage channel 7 which forms the calming section and which, like the swirl section, is constructed essentially rotationally symmetrically, has two step-shaped cross-sectional constrictions 18, to which a longer cylindrical section 19 adjoins.
  • the aerated jet is thus initially accelerated somewhat again by the constrictions 18 and then shaped in the cylindrical section 19, so that it emerges as an aerated jet with a substantially constant cross section, which is able to hold the mixed-in air over a long distance.
  • the distance between the outlet openings of the passage channels 7 is kept sufficiently large that the aerated water jets do not touch each other.
  • two disc-shaped rings 23, which lie one on top of the other, are preferably provided, which, if desired, can also have radial ventilation bores in the area of their constrictions 21, 22 for additional ventilation of the aerated jet.
  • the section 10 of the passage 7 that forms the calming section also has a step-like gradation, but the adjoining cylindrical section 19 is somewhat shorter than in the embodiment according to FIG. 1.
  • each passage channel 7 is in turn assigned to three water jet-forming holes 24, which, like in FIG. 1, are oriented in such a way that the jets emerging from them strike the individual steps 20 in different ways.
  • groups of three holes 24 are provided, each group of holes lying on an arc that roughly corresponds to the arc of the second or third stage 20 of the beam splitting section 8, but the center of which is somewhat offset to the outside compared to the axis of rotation of the beam splitting section.
  • the sections 8, 9 and 10 of the passage 7 are also slightly offset from one another.
  • the beam splitting section 8 of the passage 7 essentially corresponds to that of the embodiment according to FIG. 1.
  • the swirling section 9 has two conical constrictions 21 and 22 and is in turn two disc-shaped rings 23 formed.
  • the section 10 forming the calming section has a conical constriction 25 instead of a step-like gradation, to which only one constricts short cylindrical section 26 connects.
  • the input cross-section of the cone 25 is larger than the output cross-section of the swirling section 9, so that there is again an undercut between the two sections, which leads to a further increased swirling before the aerated jet in the cone 25 and in the subsequent cylindrical section 26 is calmed.
  • the beam splitting section 10 of the passage 7 has a conical taper 27 and two adjoining cylindrical sections with an intermediate step 28.
  • the shape of the vortex section 9 corresponds essentially to that of FIG. 1 and the section 10 forming the calming section to that of FIG. 6, but no undercut is provided here between sections 9 and 10. Rather, the output cross section of section 9 and the input cross section of section 10 are of the same size and shape.
  • the axes of rotation of the three sections 8, 9 and 10 also coincide in this embodiment.
  • each passage channel 7 is in turn assigned three water jet-forming holes.
  • these lie on a circular arc that intersects the axes of the passage channels 7.
  • the middle hole 29 opens into the passage 7 along the longitudinal axis thereof, so that the water jet formed by it could pass through the passage 7 without hindrance if it did not receive water jets from the other two holes 30 that hit the cone 27 or the stairs 28 hit, disturbed and would also be divided.
  • holes 29 and 30 are not combined into groups of three, but are arranged at equal intervals along an arc. The inlet openings of the passage channels 7 are so close together that they essentially touch each other and are essentially free of a web separating them.
  • FIGS. 9 and 10 show a particularly preferred embodiment of the invention. This is very simple and still shows a good spray pattern.
  • a shower head 31 has a plurality of holes 33 in a perforated plate 32, which are combined into groups of four, the four holes 33 each lying on a circular arc which is arranged symmetrically to a passage 34 and whose diameter is slightly smaller than the input diameter of the Passage channel 34.
  • To form the passage channel 34 two disk-shaped rings 35 and 36 are provided, which are provided with corresponding openings.
  • the opening in the ring 35 forming the beam splitting section 8 has three diameter steps, the diameter and height of which decrease from top to bottom.
  • the diameters are 8 mm, 7 mm and 5.5 mm and the respective heights 2.5 mm, 1.5 mm and 1 mm.
  • the holes 33 in the perforated plate 32 are aligned in such a way that the individual jets emerging from them strike the edge of the shoulder 37 between the upper and the middle diameter step and are broken there. A further refraction takes place on the shoulder 38 between the middle and the lower diameter step.
  • the entire cross section of the passage is filled again and air is sucked in via an air vent 39 into an air space 40 located under the perforated plate.
  • no longitudinal section formed by a special part is provided for the formation of a vortex section.
  • the initial cross-section of the opening in the disk-shaped ring 35 is smaller than the entrance cross-section of the subsequent ring 36, so that an undercut 41 with a sudden increase in cross-section is formed at the transition.
  • the opening in the disk-shaped ring 36 has two diameter steps, namely an upper one with a diameter of 6 mm and a lower one with a diameter of 4.5 mm, the height of the upper diameter step being approximately 2.5 mm slightly less than that of the lower with about 3 mm. Overall, this embodiment has a low overall height. You can therefore easily with other facilities of a shower head, for. B. combine a massage device or a conventional shower head without large and bulky designs.
  • the perforated plate 32 and the disc-shaped rings 35 and 36 with their openings can also be easily produced by injection molding and aligned by molding or recessing appropriate stops in a simple manner so that the axially aligned arrangement of the individual plates or disks and their Breakthroughs are possible in a simple manner.
  • the holes 33 in the perforated plate 32 generally have a diameter of 1 mm. Five holes are also possible.
  • a shower head has a perforated plate 32 with holes 33, which are arranged on an arc of a circle similar to the embodiment according to FIGS. 1 to 3. Is located below the perforated plate 32 an air space 6 with channels, not shown in the drawing, for the air inlet.
  • the air passages 7 adjoin the air space, which in turn are arranged eccentrically, that is to say outwardly offset under the holes 33, as in the embodiment according to FIGS. 1 to 3.
  • three holes are assigned to a passage channel.
  • the holes have a diameter of approximately 1.2 mm.
  • the passage channels are again formed by openings of three disks or rings 42, 43 and 44 lying one above the other.
  • the opening in the upper ring 42 forming the beam splitting section has essentially the shape as described in connection with the description of the embodiment according to FIGS. 1 to 3, the staircase formed by arch sections, however, having only three diameter steps 45, 46, 47 with two has intermediate step edges 48 and 49.
  • the disk or ring 43 Following the diameter step 47 with the smallest diameter is the disk or ring 43, the opening of which, however, is not restricted to a single passage 7, but initially has an annular groove 50, which forms a cross-connection of all passage 7.
  • the width of the annular groove 50 is larger than the diameter of the diameter step 47, so that the resulting undercut promotes the swirling of the aerated water jet.
  • the annular groove 50 has a bevelled bottom, to which each passage channel is adjoined by a substantially cylindrical bore 51, the diameter of which is smaller than the diameter of the smallest diameter step 47 of the beam splitting section 8.
  • the cylindrical bore 51 has at its end facing the lower ring 44 a slight constriction 52, which has a sharp inner edge, which, together with the input cross section of the underlying disc 44, in turn forms an undercut.
  • the disk 44 in turn has an encircling annular groove 53 on its input side, which connects all of the calming sections of the passage channels 7 to one another.
  • This annular groove 53 is in turn followed by a cylindrical section 54, the diameter of which essentially corresponds to the cylindrical section 51 in the ring 43 or is slightly smaller.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Ventilation (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

The invention relates to an apparatus, particularly a shower head for forming a plurality of vented jets. The apparatus has a device for producing individual jets. It also has at least one underlying air space and obstacles projecting laterally into the paths of the individual jets, which deflect the latter and, while mixing with air atomize the said jets. Passage channels, which can have vortexing portions and quieting portions are provided for each vented jet for further influencing the air/water mixture. Several individual jets are used for producing a single vented jet. The object of the invention is mainly intended for use in the sanitary field.

Description

Die Erfindung betrifft eine Vorrichtung zur Bildung einer Vielzahl von belüfteten Strahlen, insbesondere Brausekopf, mit einer Einrichtung zur Erzeugung von unbelüfteten Einzelstrahlen, mindestens einem darunter befindlichen Raum für den Zutritt von Luft und einer Vielzahl von Durchgangskanälen mit in die Bahn der Einzelstrahlen ragenden Hindernissen zur Zerlegung der Einzelstrahlen.The invention relates to a device for forming a plurality of aerated jets, in particular a shower head, with a device for generating unventilated individual jets, at least one space underneath for the access of air and a plurality of through-channels with obstacles for disassembly protruding into the path of the individual jets the single rays.

Bekannte Einrichtungen zur Erzeugung von belüfteten Wasserstrahlen besitzen in der Regel eine Lochplatte, unter der in einem Abstand mindestens ein Drahtsieb angeordnet ist, das die Auftrennung und Vermischung der aus der Lochplatte austretenden Einzelstrahlen mit der Luft bewirkt. Die Maschenweite des Siebes ist dabei so gehalten, daß die Sieböffnungen kleiner sind als die Löcher der Lochplatte, so daß aus der Leitung mitgeführte Schmutzteilchen in dem Sieb hängen bleiben und eine Störung des Strahlbildes bzw. Verminderung des Wasserdurchtritts bewirken. Im gleichen Sinne wirkt die Verkalkung, die bei engmaschigen Sieben sehr schnell fortschreitet und bei kalkhaltigem Wasser rasch zu einer solchen Durchflußverminderung führt, bei der das Ansaugen einer ausreichenden Luftmenge nicht mehr möglich ist.Known devices for producing aerated water jets generally have a perforated plate, under which at least one wire screen is arranged at a distance, which causes the individual jets emerging from the perforated plate to be separated and mixed with the air. The mesh size of the sieve is kept so that the sieve openings are smaller than the holes in the perforated plate, so that dirt particles carried along from the line get caught in the sieve and cause a disturbance in the jet pattern or a reduction in water penetration. The calcification works in the same sense, which progresses very quickly in the case of narrow-mesh sieves and, in the case of calcareous water, quickly leads to a flow reduction in which it is no longer possible to draw in a sufficient amount of air.

Aus der DE-A-2 821 195 ist weiterhin eine Handbrause mit Einrichtungen zur Bildung von belüfteten Strahlen bekannt. Bei dieser Einrichtung ist als Hindernis zur Zerlegung eines Einzelstrahles in einem Durchgangskanal ein tellerartiges Strahlteilerelement mit konkaver Oberfläche, dessen Durchmesser ein mehrfaches des Durchmessers der Austrittsöffnung für den Einzelstrahl beträgt, axial in die Bahn des Einzelstrahles eingebracht, so daß der Strahl unmittelbar auf den Teller aufprallt und von diesem reflektiert wird. Dies hat eine starke Bremsung des Einzelstrahles zur Folge, die mit hohen Energieverlusten verbunden ist und sich deshalb auf das Strahlbild ungünstig auswirkt.From DE-A-2 821 195 a hand shower with devices for forming aerated jets is also known. In this device, a plate-like beam splitter element with a concave surface, the diameter of which is a multiple of the diameter of the outlet opening for the single jet, is introduced axially into the path of the single jet as an obstacle to the decomposition of a single jet in a through-channel, so that the jet impinges directly on the plate and is reflected by it. This results in strong braking of the individual jet, which is associated with high energy losses and therefore has an adverse effect on the jet pattern.

Bei einer aus der DE-B-1 214618 bekannten Vorrichtung zum Belüften eines Wasserstrahls treffen die eine Lochplatte verlassenden Einzelstrahlen zu ihrer Zerteilung auf einen im wesentlichen konischen Außenmantel eines zentralen Körpers auf, der etwa pilzförmig gestaltet ist. Auch hier findet eine erhebliche Zwangsumlenkung der Einzelstrahlen statt. Um einen guten Wirkungsgrad der Durchmischung von Wasser und Luft zu erreichen, wird weiterhin noch ein Engpaß zwischen Lochscheibe und Oberseite des pilzförmigen Körpers für nötig erachtet, der die Ablagerung von mitgeführten Verunreinigungen begünstigen kann.In a device for aerating a water jet known from DE-B-1 214618, the individual jets leaving a perforated plate meet an essentially conical outer jacket of a central body, which is approximately mushroom-shaped, for their division. Here, too, the individual beams are deflected considerably. In order to achieve a good efficiency of the mixing of water and air, a bottleneck between the perforated disc and the top of the mushroom-shaped body is still considered necessary, which can favor the deposition of entrained contaminants.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur Bildung von belüfteten Wasserstrahlen zu schaffen, die ohne Sieb auskommt und bei der die Wasserstrahlen trotzdem möglichst wenig abgebremst werden.The invention is therefore based on the object of providing a device for forming aerated water jets which does not require a sieve and in which the water jets are nevertheless braked as little as possible.

Die Aufgabe wird dadurch gelöst, daß mindestens zwei Einzelstrahlen auf jeden Kanal 7 gerichtet sind, die Kanäle 7 in axialer Richtung eine im wesentlichen zentrale Durchtrittsöffnung besitzen, deren lichter Durchmesser größer als der eines unbelüfteten Einzelstrahles ist, die Austrittsrichtung von mindestens einem Einzelstrahl versetzt zur Achse der Durchtrittsöffnung in den Kanal gerichtet ist und die Hindernisse 14 ; 20 ; 27, 28 ; 37, 38 ; 48, 49 zur Zerlegung der Einzelstrahlen seitlich von der Kanalwand in die Bahn von jeweils mindestens einem Einzelstrahl ragen. Dadurch wird erreicht, daß der Einzelstrahl bei seiner Zerlegung nicht reflektiert, sondern lediglich abgelenkt wird, also seine ursprüngliche Bewegungsrichtung wenigstens teilweise beibehält, aber trotzdem so stark zerlegt wird, daß eine zufriedenstellende Luftaufnahme und Vermischung mit Luft erfolgt. Da das Zentrum des Kanals einen freien Durchgang besitzt, werden die Wasserstrahlen nicht zu stark gebremst. Es kann auch keine Verstopfung auftreten. Etwaige Ablagerungen können abgelöst und durchgespült werden. Der die Einzelstrahlen zerlegende Abschnitt des Kanals hat vorzugsweise unstetige, insbesondere abrupte Querschnittsverminderungen, die stufenförmig verlaufen können.The object is achieved in that at least two individual jets are directed onto each channel 7, the channels 7 have an essentially central passage opening in the axial direction, the clear diameter of which is larger than that of an unvented single jet, the exit direction of at least one single jet offset from the axis the passage opening is directed into the channel and the obstacles 14; 20; 27, 28; 37, 38; 48, 49 protrude laterally from the channel wall into the path of at least one individual beam to split the individual beams. The result of this is that the individual beam is not reflected when it is decomposed, but is merely deflected, that is to say at least partially retains its original direction of movement, but is nevertheless decomposed to such an extent that satisfactory air absorption and mixing with air take place. Since the center of the channel has a clear passage, the water jets are not slowed down too much. No constipation can occur. Any deposits can be removed and rinsed off. The section of the channel that divides the individual beams preferably has discontinuous, in particular abrupt, cross-sectional reductions that can run in a step-like manner.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung von Ausführungsformen in Verbindung mit der Zeichnung.Further refinements of the invention result from the subclaims and the description of embodiments in conjunction with the drawing.

Zusätzlich sei hier noch angefügt, daß die Auftreffläche der Hindernisse vorzugsweise senkrecht zur Strahlrichtung oder in Strahlrichtung geneigt ist, Steht sie senkrecht zur Strahlrichtung, dann ragt das Hindernis vorzugsweise nur so weit in die Bahn eines Einzelstrahls, daß dieser nur teilweise erfaßt wird. Da mehrere Einzelstrahlen zur Erzeugung eines einzelnen belüfteten Strahles verwendet werden, findet gleichzeitig noch eine gegenseitge Beeinflussung der abgelenkten Einzelstrahlen untereinander statt, wodurch die Vermischung der angesaugten Luft noch gefördert wird. Weiterhin sind gemäß der Erfindung mit Vorteil Strahlführungselemente vorgesehen, durch die die belüfteten Strahlen weiterhin beeinflußbar sind. Hierzu ist mit Vorteil im Anschluß an den zur Zerlegung der Strahlen dienenden Abschnitt mindestens ein Strahlverwirbelungsabschnitt vorgesehen, der vorzugsweise mindestens eine Querschnittserweiterung aufweist, die abrupt sein kann und z. B. als eine an der Kanalwandung vorgesehene Hinterschneidung ausgebildet sein kann. Zur seitlichen Begrenzung und Beruhigung des belüfteten Strahles ist mit Vorteil ein Formungsabschnitt vorgesehen, der mindestens einen zylindrischen Abschnitt besitzt. Der Strahlformungsabschnitt weist vorzugsweise stufenförmige und/oder konische Querschnittsverminderungen auf, die mit Vorteil vor dem zylindrischen Abschnitt vorgesehen sind (in Strahlrichtung gesehen). Vorzugsweise sind die die Einzelstrahlen erzeugenden Löcher der Vorrichtung in Bezug auf die Achse bzw. die Achsen der Strahlführungselemente exzentrisch angeordnet und werden durch die ebenfalls exzentrisch angeordneten Hindernisse in Richtung zu den Längsachsen der Strahlführungselemente abgelenkt. Dadurch können Reibungsverluste niedrig gehalten werden. Von Vorteil ist weiterhin, daß der Durchtrittsquerschnitt durch die Strahlführungselemente durch die Hindernisse, die ja in der Regel am Rande der Öffnungen angeordnet sind, nicht verstellt wird, wie dies bei der bekannten Brausevorrichtung der Fall ist. Vielmehr ist der lichte Querschnitt der Strahlführungselemente, insbesondere der Durchmesser des geradlinigen freien Durchgangs durch den gesamten Kanal stets um ein Mehrfaches größer als der Durchmesser der strahlbildenden Löcher, wodurch eine Verstopfungsgefahr vermieden wird. Auch die weitere Beeinflussung des belüfteten Strahles erfolgt bei bevorzugten Ausgestaltungen der Erfindung stets vom Außenrand her, insbesondere mit Hilfe von verschiedenartig gestalteten Querschnittserweiterungen und/oder -verengungen. Dadurch ist es möglich, die erfindungsgemäße Vorrichtung in einfacher Weise herzustellen, zum Beispiel in Form von einzelnen Scheiben oder Ringen aus thermoplastischem Kunststoff, in denen die Strahlführungen durch Spritzguß mit einfachen Werkzeugen ausgebildet sind.In addition, it should also be added here that the impact surface of the obstacles is preferably inclined perpendicular to the beam direction or in the beam direction. If it is perpendicular to the beam direction, then the obstacle preferably projects only so far into the path of a single beam that it is only partially detected. Since several individual jets are used to generate a single aerated jet, the deflected individual jets mutually influence one another at the same time, which further promotes the mixing of the intake air. Furthermore, beam guiding elements are advantageously provided according to the invention, by means of which the aerated jets can still be influenced. For this purpose, at least one beam swirling section is advantageously provided subsequent to the section serving to split the beams, which section preferably has at least one cross-sectional expansion, which can be abrupt and z. B. can be formed as an undercut provided on the channel wall. For the lateral limitation and calming of the aerated jet, a shaping section is advantageously provided which has at least one cylindrical section. The beam shaping section preferably has step-shaped and / or conical cross-sectional reductions, which are advantageously provided in front of the cylindrical section (viewed in the beam direction). Preferably, they are the ones that generate the individual beams Holes of the device are arranged eccentrically with respect to the axis or the axes of the beam guiding elements and are deflected by the likewise eccentrically arranged obstacles in the direction of the longitudinal axes of the beam guiding elements. This allows friction losses to be kept low. It is also advantageous that the passage cross section through the beam guiding elements is not adjusted by the obstacles, which are generally arranged at the edge of the openings, as is the case with the known shower device. Rather, the clear cross section of the beam guiding elements, in particular the diameter of the straight free passage through the entire channel, is always several times larger than the diameter of the beam-forming holes, as a result of which a risk of clogging is avoided. In the case of preferred configurations of the invention, the ventilated jet is also always influenced further from the outer edge, in particular with the aid of cross-sectional expansions and / or constrictions of various designs. This makes it possible to produce the device according to the invention in a simple manner, for example in the form of individual disks or rings made of thermoplastic material, in which the beam guides are formed by injection molding using simple tools.

Die Löcher zur Bildung der Einzelstrahlen haben in der Regel einen Durchmesser von ca. 0,5 mm bis 2,5 mm und können verschiedene Querschnittsformen haben. Auch kann es vorteilhaft sein, in an sich bekannter Weise ein Störelement für die Einzelstrahlen vorzusehen, um den Strahl zu beunruhigen bzw. ihm einen Drall zu verleihen, etwa in der Bohrung selbst oder am Eingang des Wassers in die entsprechende Bohrung bzw. Durchtrittsöffnung. In der Regel sind drei bis zehn Löcher für Einzelstrahlen pro Kanal vorgesehen. Die Höhe des Luftraumes zwischen den die Einzelstrahlen bildenden Düsen bzw. Löchern und den die Einzelstrahlen zerteilenden Hindernissen kann in weiten Grenzen variieren und beträgt in der Regel 0,5 mm bis 5 mm, vorzugsweise bis 3 mm, kann jedoch auch beträchtlich größer sein. Der Austrittsquerschnitt des belüfteten Strahles bzw. der Innendurchmesser eines ggf. hierzu vorgesehenen Strahlformers kann ebenfalls innerhalb weiter Grenzen variiert werden und beträgt in der Regel 2 mm bis 15 mm, vorzugsweise ca. 4 mm bis 6 mm. Der Eingangsquerschnitt bzw. Eingangsdurchmesser der Strahlführungselemente bzw. eines von diesen gebildeten Durchtrittskanals, der zur Aufnahme der zu zerteilenden Einzelstrahlen vorgesehen ist, ist in der Regel größer und hat normalerweise eine lichte Weite von 4 mm bis 20 mm, vorzugsweise 6 mm bis 12 mm.The holes for forming the individual beams generally have a diameter of approximately 0.5 mm to 2.5 mm and can have different cross-sectional shapes. It can also be advantageous to provide, in a manner known per se, a disruptive element for the individual jets in order to unsettle the jet or to give it a twist, for example in the bore itself or at the inlet of the water into the corresponding bore or passage opening. As a rule, three to ten holes are provided for individual beams per channel. The height of the air space between the nozzles or holes forming the individual jets and the obstacles dividing the individual jets can vary within wide limits and is generally 0.5 mm to 5 mm, preferably up to 3 mm, but can also be considerably larger. The outlet cross section of the aerated jet or the inside diameter of a jet former that may be provided for this purpose can also be varied within wide limits and is generally 2 mm to 15 mm, preferably approximately 4 mm to 6 mm. The input cross section or input diameter of the beam guiding elements or of a passage channel formed by them, which is provided for receiving the individual beams to be divided, is generally larger and normally has a clear width of 4 mm to 20 mm, preferably 6 mm to 12 mm.

Stufenförmige Querschnittsverengungen, die zur Bildung der Hindernisse dienen können, aber auch stufenförmige Querschnittserweiterungen bzw. Hinterschneidungen liegen vorzugsweise in der Größenordnung von 5 % bis 25 %, vorzugsweise 10 % bis 20 % der lichten Weite der benachbarten Führungselemente bzw. Abschnitte des Kanals, wobei natürlich mehrere Verengungen und/oder Erweiterungen aufeinander folgen können. Ähnliches gilt für konische Erweiterungen und/oder Verengungen, bei denen der Neigungswinkel zur Längsachse der Einzelstrahlen in der Regel bei ca. 30° bis 60°, vorzugsweise ca. 45°, liegt.Step-shaped cross-sectional constrictions, which can serve to form the obstacles, but also step-shaped cross-sectional enlargements or undercuts are preferably in the order of 5% to 25%, preferably 10% to 20%, of the clear width of the adjacent guide elements or sections of the channel, of course several constrictions and / or extensions can follow one another. The same applies to conical extensions and / or constrictions, in which the angle of inclination to the longitudinal axis of the individual beams is generally approximately 30 ° to 60 °, preferably approximately 45 °.

Im allgemeinen sind mindestens 5, vorzugsweise 10 bis 50, Einzelvorrichtungen zur Erzeugung eines belüfteten Strahles in einem Brausekopf oder einem anderen Düsenkörper zusammengefaßt. Dabei können die Einzelstrahlen geneigt zueinander austreten, insbesondere divergierend. Die Tiefe der Hindernisse, mit der sie seitlich in den Durchtrittskanal ragen bzw. hinter einem vorhergehenden Hindernis bzw. Wandungsteil hervorragen, beträgt normalerweise 1/4 bis das dreifache, vorzugsweise 1/2 bis das einfache der lichten Weite eines strahlbildenden Loches. Die Stufen sind vorzugsweise miteinander verbunden, so daß sie geschlossene Treppen darstellen, wobei die « Stufentritte von Vorderkante zur Hinterkante oder auch von Hinterkante zur Hinterkante miteinander verbunden sein können. Andererseits ist es möglich, die Verengungen und/oder Erweiterungen so auszubilden, daß sich ein kurvenförmiger Längsschnitt ergibt. So können sich auch kurvenförmige Abschnitte mit kantigen und/oder konischen Abschnitten abwechseln.In general, at least 5, preferably 10 to 50, individual devices for generating a ventilated jet are combined in a shower head or another nozzle body. The individual beams can emerge inclined to one another, in particular diverging. The depth of the obstacles with which they protrude laterally into the passage channel or protrude behind a preceding obstacle or wall part is normally 1/4 to three times, preferably 1/2 to the simple, the clear width of a beam-forming hole. The steps are preferably connected to one another so that they represent closed stairs, the step steps being able to be connected from the front edge to the rear edge or from the rear edge to the rear edge. On the other hand, it is possible to design the constrictions and / or extensions in such a way that a curved longitudinal section results. In this way, curved sections can alternate with angular and / or conical sections.

Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von bevorzugten Ausführungsformen in Verbindung mit der Zeichnung und den Ansprüchen. Hierbei können die Merkmale jeweils für sich alleine oder zu mehreren bei einer Ausführungsform an der Erfindung verwirklicht sein.Further features of the invention result from the following description of preferred embodiments in conjunction with the drawing and the claims. Here, the features can be implemented individually or in groups in one embodiment of the invention.

In der Zeichnung zeigen :

  • Figur 1 einen Querschnitt durch eine Ausführungsform der Erfindung,
  • Figur 2 einen Schnitt entlang der Linie B-B nach Fig. 1,
  • Figur 3 einen Schnitt entlang der Linie A-A nach Fig. 1,
  • Figur 4 einen Teilschnitt einer anderen Ausführungsform,
  • Figur 5 einen Schnitt entlang der Linie C-C nach Fig. 4,
  • Figur 6 einen Teilschnitt durch eine weitere Ausführungsform,
  • Figur 7 einen Schnitt entlang der Linie D-D nach Fig. 8,
  • Figur 8 einen Teilschnitt durch eine weitere Ausführungsform,
  • Figur 9 einen TeilschliiLt durch eine weitere Ausführungsform,
  • Figur 10 einen Schnitt entlang der Linie E-E nach Fig. 9 und
  • Figur 11 einen Schnitt durch eine weitere Ausführungsform.
The drawing shows:
  • FIG. 1 shows a cross section through an embodiment of the invention,
  • FIG. 2 shows a section along the line BB according to FIG. 1,
  • FIG. 3 shows a section along the line AA according to FIG. 1,
  • FIG. 4 shows a partial section of another embodiment,
  • 5 shows a section along the line CC of FIG. 4,
  • FIG. 6 shows a partial section through a further embodiment,
  • FIG. 7 shows a section along the line DD according to FIG. 8,
  • FIG. 8 shows a partial section through a further embodiment,
  • FIG. 9 shows a partial section through a further embodiment,
  • 10 shows a section along the line EE of FIG. 9 and
  • Figure 11 shows a section through a further embodiment.

Bei der in der Zeichnung in den Figuren 1 bis 3 dargestellten Ausführungsform der Erfindung weist ein Brausekopf 1 neben anderen nicht dargestellten Brause- bzw. Massageeinrichtungen eine Einrichtung zur Erzeugung von belüfteten Strahlen auf. Hierzu sind im Brausekörper 2, der mit einem umstellbaren Wasserzulauf 3 versehen ist, eine Vielzahl von parallelen wasserstrahlbildenden Löchern 4 vorgesehen, die auf einem kreisbogenförmigen Ring 5 angeordnet sind. Am ausflußseitigen Ende der Löcher 4 befindet sich ein mit einem Belüftungsschlitz verbundener Luftraum 5 unterhalb dessen jeweils ein Durchtrittskanal 7 für einen belüfteten Wasserstrahl vorgesehen ist, der exzentrisch zu den Löchern 4, d. h. in einem größeren radialen Abstand als diese von der Mittelachse des Brausekopfes 1 angeordnet ist (vgl. Fig. 3). Jeweils drei bis zehn Löcher 4 sind einem Durchtrittskanal 7 zugeordnet. Jeder Durchtrittskanal 7 weist einen Strahlzerteilungsabschnitt 8, einen Durchwirbelungsabschnitt 9 und eine Beruhigungsstrecke 10 auf, die jeweils von entsprechend geformten Öffnungen in aufeinander liegenden Ringen 11, 12 und 13 gebildet werden. Der Strahlerzeugungsabschnitt 8 besitzt eine exzentrische, einem Amphitheater ähnliche treppenförmige vier bogenförmige Stufen 14 aufweisende Abstufung 15, die unter den ihr zugeordneten Löchern 4 des Ringes 5 liegt und ein Hindernis für die durch die Löcher 4 austretenden vollen Einzelstrahlen bildet und diese zerteilt und seitlich ablenkt, wodurch der gesamte Querschnitt des Durchtrittkanales 7 gefüllt und die angesaugte Luft in Blasenform mitgerissen wird. Der durch die Öffnungen im Ring 12 gebildete Durchwirbelungsabschnitt 9 besitzt eine konische Verjüngung 16 mit einer sich daran anschließenden im wesentlichen gleich großen konischen Erweiterung, wobei, was wesentlich ist, der Eingangsquerschnitt der Öffnung des Durchwirbelungsabschnittes 9 größer ist als der Ausgangsquerschnitt des Strahlzerteilungsabschnittes 8, so daß sich am Übergang der beiden Abschnitte eine Hinterschneidung 17 bildet. Diese Hinterschneidung sorgt für eine gute Turbulenz und Vermischung von Luft und Wasser, die durch die Verjüngung im Durchwirbelungsabschnitt noch gefördert wird. Der Eingangsquerschnitt der anschließenden Beruhigungsstrecke 10 entspricht im wesentlichen dem Ausgangsquerschnitt des Durchwirbelungsabschnittes 9, d. h. im Anschluß an die Verengung des Durchwirbelungsabschnittes wird durch die Querschnittserweiterung die Fließgeschwindigkeit des belüfteten Strahles etwas verlangsamt, so daß bereits hier Beruhigung eintritt. Der die Beruhigungsstrecke bildende Abschnitt des Durchgangskanals 7, der wie der Durchwirbelungsabschnitt im wesentlichen rotationssymmetrisch aufgebaut ist, weist zwei treppenförmige Querschnittsverengungen 18 auf, an die sich ein längerer zylindrischer Abschnitt 19 anschließt. In der Beruhigungsstrecke wird der belüftete Strahl somit zunächst durch die Verengungen 18 wieder etwas beschleunigt und dann im zylindrischen Abschnitt 19 geformt, so daß er als belüfteter Strahl mit im wesentlichen gleichbleibendem Querschnitt austritt, der die eingemischte Luft über eine lange Strecke zu halten vermag. Dabei ist der Abstand der Austrittsöffnungen der Durchtrittskanäle 7 ausreichend groß gehalten, daß sich die belüfteten Wasserstrahlen gegenseitig nicht berühren.In the embodiment of the invention shown in the drawing in FIGS. 1 to 3, a shower head 1 does not have any other shown shower or massage devices on a device for generating ventilated rays. For this purpose, a plurality of parallel water jet-forming holes 4 are provided in the shower body 2, which is provided with a switchable water inlet 3, which are arranged on an arc-shaped ring 5. At the outflow-side end of the holes 4 there is an air space 5 connected to a ventilation slot, below each of which a passage 7 is provided for an aerated water jet, which is arranged eccentrically to the holes 4, ie at a greater radial distance than this from the central axis of the shower head 1 is (see FIG. 3). In each case three to ten holes 4 are assigned to a passage channel 7. Each passage channel 7 has a beam splitting section 8, a swirling section 9 and a calming section 10, each of which is formed by correspondingly shaped openings in rings 11, 12 and 13 lying one on top of the other. The beam generating section 8 has an eccentric, step-like four arc-shaped steps 14, which is similar to an amphitheater and has a step 15, which lies below the holes 4 of the ring 5 assigned to it and forms an obstacle to the full individual beams emerging through the holes 4 and divides them and deflects them laterally, whereby the entire cross section of the passage 7 is filled and the sucked air is entrained in the form of bubbles. The swirling section 9 formed by the openings in the ring 12 has a conical taper 16 with an adjoining substantially identical conical widening, whereby, what is important, the input cross section of the opening of the swirling section 9 is larger than the output cross section of the beam splitting section 8, so that an undercut 17 forms at the transition of the two sections. This undercut ensures good turbulence and mixing of air and water, which is further promoted by the taper in the vortex section. The input cross-section of the subsequent calming section 10 essentially corresponds to the output cross-section of the vortex section 9, ie following the narrowing of the vortex section, the flow velocity of the aerated jet is somewhat slowed down by the cross-sectional widening, so that calming already occurs here. The section of the passage channel 7 which forms the calming section and which, like the swirl section, is constructed essentially rotationally symmetrically, has two step-shaped cross-sectional constrictions 18, to which a longer cylindrical section 19 adjoins. In the calming section, the aerated jet is thus initially accelerated somewhat again by the constrictions 18 and then shaped in the cylindrical section 19, so that it emerges as an aerated jet with a substantially constant cross section, which is able to hold the mixed-in air over a long distance. The distance between the outlet openings of the passage channels 7 is kept sufficiently large that the aerated water jets do not touch each other.

Bei der in den Figuren 4 und 5 dargestellten Ausführungsform, bei der, wie bei den nachfolgenden Ausführungsformen, einander entsprechende Teile mit den gleichen Bezugszahlen versehen sind, sind alle drei Abschnitte des Durchtrittskanals 7, nämlich der Strahlzerteilungsabschnitt 8, der Durchwirbelungsabschnitt 9 und der Beruhigungsabschnitt 10 mit rotationssymmetrischen Durchtrittsöffnungen versehen. Die Stufen 20 des Strahlzerteilungsabschnittes sind somit als Vollkreise ausgebildet im Gegensatz zu den nur einen Kreisbogenabschnitt darstellenden Stufen 14 der Abstufung 15 der Ausführungsform nach den Figuren 1 bis 3. Ein weiterer Unterschied ist bei der Ausführungsform nach Fig. 4 darin zu sehen, daß der Durchwirbelungsabschnitt 9 eine Verdoppelung des Durchwirbelungsabschnittes von Fig. 1 darstellt und zwei konische Verengungen 21 und 22 mit sich daran anschließenden konischen Erweiterungen besitzt. Hierzu sind vorzugsweise zwei aufeinander liegende scheibenförmige Ringe 23 vorgesehen, die, falls die erwünscht ist, im Bereich ihrer Verengungen 21, 22 noch radiale Belüftungsbohrungen zur zusätzlichen Belüftung des belüfteten Strahles besitzen können. Der die Beruhigungsstrecke bildende Anschnitt 10 des Durchtrittskanals 7 besitzt ebenfalls wieder eine treppenförmige Abstufung, wobei jedoch der sich daran anschließende zylindrische Abschnitt 19 etwas kürzer ist als bei der Ausführungsform nach Fig. 1.In the embodiment shown in FIGS. 4 and 5, in which, as in the subsequent embodiments, corresponding parts are provided with the same reference numbers, all three sections of the passage channel 7, namely the beam splitting section 8, the swirling section 9 and the calming section 10 provided with rotationally symmetrical through openings. The stages 20 of the beam splitting section are thus designed as full circles, in contrast to the stages 14 of the gradation 15 of the embodiment according to FIGS. 1 to 3, which only represent a circular arc section. Another difference in the embodiment according to FIG. 4 is that the vortex section 9 represents a doubling of the vortex section of FIG. 1 and has two conical constrictions 21 and 22 with adjoining conical extensions. For this purpose, two disc-shaped rings 23, which lie one on top of the other, are preferably provided, which, if desired, can also have radial ventilation bores in the area of their constrictions 21, 22 for additional ventilation of the aerated jet. The section 10 of the passage 7 that forms the calming section also has a step-like gradation, but the adjoining cylindrical section 19 is somewhat shorter than in the embodiment according to FIG. 1.

Wie aus Fig. 5 ersichtlich ist, sind jedem Durchtrittskanal 7 wiederum drei wasserstrahlbildende Löcher 24 zugeordnet, die ähnlich wie in Fig. 1 so ausgerichtet sind, daß die aus ihnen austretenden Strahlen in unterschiedlicher Weise auf die einzelnen Treppenstufen 20 auftreffen. Hierzu sind jeweils Dreiergruppen von Löchern 24 vorgesehen, wobei jede Lochgruppe auf einem Kreisbogen liegt, der in etwa dem Kreisbogen der zweiten oder dritten Stufe 20 des Strahlzerteilungsabschnittes 8 entspricht, dessen Mittelpunkt aber im Vergleich zur Rotationsachse des Strahlzerteilungsabschnittes etwas nach außen versetzt ist. Auch die Abschnitte 8, 9 und 10 des Durchtrittskanales 7 sind untereinander etwas achsenversetzt.As can be seen from FIG. 5, each passage channel 7 is in turn assigned to three water jet-forming holes 24, which, like in FIG. 1, are oriented in such a way that the jets emerging from them strike the individual steps 20 in different ways. For this purpose, groups of three holes 24 are provided, each group of holes lying on an arc that roughly corresponds to the arc of the second or third stage 20 of the beam splitting section 8, but the center of which is somewhat offset to the outside compared to the axis of rotation of the beam splitting section. The sections 8, 9 and 10 of the passage 7 are also slightly offset from one another.

Bei der in Fig. 6 dargestellten Ausführungsform entspricht der Strahlzerteilungsabschnitt 8 des Durchtrittskanales 7 im wesentlichen dem der Ausführungsform nach Fig. 1. der Durchwirbelungsabschnitt 9 weist, wie bei der Ausführungsform nach Fig. 4 zwei konische Verengungen 21 und 22 auf und wird wiederum von zwei scheibenförmigen Ringen 23 gebildet. Der die Beruhigungsstrecke bildende Abschnitt 10 besitzt dagegen anstelle einer treppenförmigen Anstufung eine konische Verengung 25, an die sich ein nur kurzer zylindrischer Abschnitt 26 anschließt. Der Eingangsquerschnitt des Konus 25 ist jedoch größer als der Ausgangsquerschnitt des Durchwirbelungsabschnittes 9, so daß hier zwischen den beiden Abschnitten wiederum eine Hinterschneidung vorliegt, die zu einer nochmaligen verstärkten Durchwirbelung führt, bevor der belüftete Strahl im Konus 25 und im sich daran anschließenden zylindrischen Abschnitt 26 beruhigt wird.In the embodiment shown in FIG. 6, the beam splitting section 8 of the passage 7 essentially corresponds to that of the embodiment according to FIG. 1. As in the embodiment according to FIG. 4, the swirling section 9 has two conical constrictions 21 and 22 and is in turn two disc-shaped rings 23 formed. The section 10 forming the calming section, on the other hand, has a conical constriction 25 instead of a step-like gradation, to which only one constricts short cylindrical section 26 connects. However, the input cross-section of the cone 25 is larger than the output cross-section of the swirling section 9, so that there is again an undercut between the two sections, which leads to a further increased swirling before the aerated jet in the cone 25 and in the subsequent cylindrical section 26 is calmed.

Bei der in den Figuren 7 und 8 dargestellten Ausführungsform der Erfindung besitzt der Strahlzerteilungsabschnitt 10 des Durchtrittskanales 7 eine konische Verjüngung 27 und zwei sich anschließende zylindrische Abschnitte mit einer dazwischenliegenden Abstufung 28. Durch derartige Variationen im Vergleich zu den vorbeschriebenen Ausführungsformen kann die Zerteilungscharakteristik im Zerteilungsabschnitt beeinflußt werden. Der Durchwirbelungsabschnitt 9 entspricht in seiner Form im wesentlichen dem nach Fig. 1 und der die Beruhigungsstrecke bildende Abschnitt 10 dem nach Fig. 6, wobei jedoch hier zwischen den Abschnitten 9 und 10 keine Hinterschneidung vorgesehen ist. Vielmehr sind Ausgangsquerschnitt des Abschnittes 9 und Eingangsquerschnitt des Abschnittes 10 gleich groß und gleich geformt. Auch fallen die Rotationsachsen der drei Abschnitte 8, 9 und 10 bei dieser Ausführungsform zusammen. Wie sich aus Fig. 7 ergibt, sind jedem Durchtrittskanal 7 wiederum drei wasserstrahlbildende Löcher zugeordnet. Diese liegen bei dieser Ausführungsform auf einem Kreisbogen, der die Achsen der Durchtrittskanäle 7 schneidet. Jeweils das mittlere Loch 29 mündet entlang der Längsachse des Durchtrittskanales 7 in diesen, so daß sein von ihm gebildeter Wasserstrahl ungehindert durch den Durchtrittskanal 7 hindurchtreten könnte, wenn er nicht von den beiden anderen aus den außenliegenden Löchern 30 austretenden Wasserstrahlen, die auf den Konus 27 bzw. die Treppen 28 auftreffen, gestört und damit ebenfalls zerteilt würde. Eine weitere Besonderheit ist bei dieser Ausführungsform darin zu sehen, daß die Löcher 29 bzw. 30 nicht zu Dreiergruppen zusammengefaßt, sondern in gleichen Abständen entlang eines Kreisbogens angeordnet sind. Dabei liegen die Eingangsöffnungen der Durchtrittskanäle 7 so nahe beieinander, daß sie sich im wesentlichen gegenseitige berühren und im wesentlichen frei von einem sie trennenden Steg sind. Bei dieser Ausführungsform hat sich gezeigt, daß eine genaue Ausrichtung der Löcher 29 bzw. 30 auf die Achsen der Durchtrittskanäle 7 nicht erforderlich ist. Vielmehr kann eine ungenaue, d. h. asymmetrische Ausrichtung sogar noch zu einer Verbesserung des Strahlbildes der belüfteten Strahlen führen.In the embodiment of the invention shown in FIGS. 7 and 8, the beam splitting section 10 of the passage 7 has a conical taper 27 and two adjoining cylindrical sections with an intermediate step 28. Such variations in comparison to the previously described embodiments can influence the splitting characteristics in the splitting section will. The shape of the vortex section 9 corresponds essentially to that of FIG. 1 and the section 10 forming the calming section to that of FIG. 6, but no undercut is provided here between sections 9 and 10. Rather, the output cross section of section 9 and the input cross section of section 10 are of the same size and shape. The axes of rotation of the three sections 8, 9 and 10 also coincide in this embodiment. As can be seen from FIG. 7, each passage channel 7 is in turn assigned three water jet-forming holes. In this embodiment, these lie on a circular arc that intersects the axes of the passage channels 7. In each case, the middle hole 29 opens into the passage 7 along the longitudinal axis thereof, so that the water jet formed by it could pass through the passage 7 without hindrance if it did not receive water jets from the other two holes 30 that hit the cone 27 or the stairs 28 hit, disturbed and would also be divided. Another special feature of this embodiment is that holes 29 and 30 are not combined into groups of three, but are arranged at equal intervals along an arc. The inlet openings of the passage channels 7 are so close together that they essentially touch each other and are essentially free of a web separating them. In this embodiment, it has been shown that a precise alignment of the holes 29 and 30 on the axes of the passage channels 7 is not necessary. Rather, an inaccurate, i.e. H. asymmetrical alignment even lead to an improvement in the jet pattern of the aerated jets.

In den Figuren 9 und 10 ist eine besonders bevorzugte Ausführungsform der Erfindung dargestellt. Diese ist sehr einfach aufgebaut und zeigt trotzdem ein gutes Strahlbild. Ein Brausekopf 31 weist in einer Lochplatte 32 eine Vielzahl von Löchern 33 auf, die zu Vierergruppen zusammengefaßt sind, wobei die vier Löcher 33 jeweils auf einem Kreisbogen liegen, der symmetrisch zu einem Durchtrittskanal 34 angeordnet ist und dessen Durchmesser geringfügig kleiner ist als der Eingangsdurchmesser des Durchtrittskanales 34. Zur Bildung des Durchtrittskanals 34 sind zwei scheibenförmige Ringe 35 und 36 vorgesehen, die mit entsprechenden Durchbrechungen versehen sind. Die den Strahlzerteilungsabschnitt 8 bildende Durchbrechung im Ring 35 besitzt drei Durchmesserstuffen, deren Durchmesser und Höhe von oben nach unten abnimmt. So betragen die Durchmesser beispielsweise 8 mm, 7 mm bzw. 5,5 mm und die jeweiligen Höhen 2,5 mm, 1,5 mm und 1 mm. Dabei sind die Löcher 33 in der Lochplatte 32 so ausgerichtet, daß die aus ihnen austretenden Einzelstrahlen auf die Kante der Schulter 37 zwischen der oberen und der mittleren Durchmesserstufe auftreffen und an dieser gebrochen werden. Eine weitere Brechung erfolgt an der Schulter 38 zwischen der mittleren und der unteren Durchmesserstufe. Durch diese Ablenkung und Aufbrechung der Wasserstrahlen wird wiederum der gesamte Querschnitt des Durchtrittkanales gefüllt und über einen Lüftungsschlitz 39 in einen unter der Lochplatte liegenden Luftraum 40 angesaugte Luft mitgerissen. Für die Bildung eines Durchwirbelungabschnittes ist bei dieser Ausführungsform kein von einem besonderen Teil gebildeter Längsabschnitt vorgesehen. Vielmehr ist der Ausgangsquerschnitt der Durchbrechung im scheibenförmigen Ring 35 geringer als der Eingangsquerschnitt des nachfolgenden Ringes 36, so daß sich am Übergang eine Hinterschneidung 41 mit plötzlicher Querschnittsvergrößerung bildet. Die Durchbrechung im scheibenförmigen Ring 36 besitzt zwei Durchmesserstufen, nämlich eine obere mit einem Durchmesser von 6 mm und eine untere mit einem Durchmesser von 4,5 mm, wobei die Höhe der oberen Durchmesserstufe mit ca. 2,5 mm etwas geringer ist als die der unteren mit ca. 3 mm. Insgesamt besitzt diese Ausführungsform eine geringe Bauhöhe. Sie läßt sich deshalb bequem mit anderen Einrichtungen eines Brausekopfes, z. B. einer Massageeinrichtung oder einer üblichen Brause kombinieren, ohne daß große und unhandliche Bauformen entstehen. Die Lochplatte 32 sowie die scheibenförmigen Ringe 35 und 36 mit ihren Durchbrechungen lassen sich auch in einfacher Weise im Spritzguß herstellen und durch das Anformen bzw. Aussparen entsprechender Anschläge in einfacher Weise gegenseitig ausrichten, so daß die achsengleiche Anordnung der einzelnen Platten bzw. Scheiben und ihrer Durchbrechungen in einfacher Weise möglich ist. Die Löcher 33 in der Lochplatte 32 haben in der Regel einen Durchmesser von 1 mm. Es sind auch fünf Löcher möglich.FIGS. 9 and 10 show a particularly preferred embodiment of the invention. This is very simple and still shows a good spray pattern. A shower head 31 has a plurality of holes 33 in a perforated plate 32, which are combined into groups of four, the four holes 33 each lying on a circular arc which is arranged symmetrically to a passage 34 and whose diameter is slightly smaller than the input diameter of the Passage channel 34. To form the passage channel 34, two disk-shaped rings 35 and 36 are provided, which are provided with corresponding openings. The opening in the ring 35 forming the beam splitting section 8 has three diameter steps, the diameter and height of which decrease from top to bottom. For example, the diameters are 8 mm, 7 mm and 5.5 mm and the respective heights 2.5 mm, 1.5 mm and 1 mm. The holes 33 in the perforated plate 32 are aligned in such a way that the individual jets emerging from them strike the edge of the shoulder 37 between the upper and the middle diameter step and are broken there. A further refraction takes place on the shoulder 38 between the middle and the lower diameter step. As a result of this deflection and breaking up of the water jets, the entire cross section of the passage is filled again and air is sucked in via an air vent 39 into an air space 40 located under the perforated plate. In this embodiment, no longitudinal section formed by a special part is provided for the formation of a vortex section. Rather, the initial cross-section of the opening in the disk-shaped ring 35 is smaller than the entrance cross-section of the subsequent ring 36, so that an undercut 41 with a sudden increase in cross-section is formed at the transition. The opening in the disk-shaped ring 36 has two diameter steps, namely an upper one with a diameter of 6 mm and a lower one with a diameter of 4.5 mm, the height of the upper diameter step being approximately 2.5 mm slightly less than that of the lower with about 3 mm. Overall, this embodiment has a low overall height. You can therefore easily with other facilities of a shower head, for. B. combine a massage device or a conventional shower head without large and bulky designs. The perforated plate 32 and the disc-shaped rings 35 and 36 with their openings can also be easily produced by injection molding and aligned by molding or recessing appropriate stops in a simple manner so that the axially aligned arrangement of the individual plates or disks and their Breakthroughs are possible in a simple manner. The holes 33 in the perforated plate 32 generally have a diameter of 1 mm. Five holes are also possible.

Bei der in Fig. 11 dargestellten Ausführungsform, die ebenfalls bevorzugt ist, weist ein Brausekopf eine Lochplatte 32 mit Löchern 33 auf, die ähnlich wie bei der Ausführungsform nach den Figuren 1 bis 3 auf einem Kreisbogen angeordnet sind. Unterhalb der Lochplatte 32 befindet sich ein Luftraum 6 mit in der Zeichnung nicht dargestellten Kanälen für den Lufteintritt. An den Luftraum schließen sich die Durchtrittskanäle 7 an, die wiederum ähnlich wie bei der Ausführungsform nach den Figuren 1 bis 3 exzentrisch, d. h. nach außen versetzt unter den Löchern 33 angeordnet sind. Es sind wiederum jeweils drei Löcher einem Durchtrittskanal zugeordnet. Die Löcher haben einen Durchmesser von ca. 1,2 mm. Die Durchtrittskanäle werden bei dieser Ausführungsform wiederum von Durchbrüchen von drei übereinander liegenden Scheiben bzw. Ringen 42, 43 und 44 gebildet. Die den Strahlzerteilungsabschnitt bildende Durchbrechung im oberen Ring 42 hat im wesentlichen die Form, wie sie im Zusammenhang mit der Beschreibung der Ausführungsform nach den Figuren 1 bis 3 beschrieben ist, wobei die von Bogenabschnitten gebildete Treppe jedoch nur drei Durchmesserstufen 45, 46, 47 mit zwei dazwischenliegenden Stufenkanten 48 und 49 aufweist.In the embodiment shown in FIG. 11, which is also preferred, a shower head has a perforated plate 32 with holes 33, which are arranged on an arc of a circle similar to the embodiment according to FIGS. 1 to 3. Is located below the perforated plate 32 an air space 6 with channels, not shown in the drawing, for the air inlet. The air passages 7 adjoin the air space, which in turn are arranged eccentrically, that is to say outwardly offset under the holes 33, as in the embodiment according to FIGS. 1 to 3. Again, three holes are assigned to a passage channel. The holes have a diameter of approximately 1.2 mm. In this embodiment, the passage channels are again formed by openings of three disks or rings 42, 43 and 44 lying one above the other. The opening in the upper ring 42 forming the beam splitting section has essentially the shape as described in connection with the description of the embodiment according to FIGS. 1 to 3, the staircase formed by arch sections, however, having only three diameter steps 45, 46, 47 with two has intermediate step edges 48 and 49.

Im Anschluß an die Durchmesserstufe 47 mit geringstem Durchmesser folgt die Scheibe bzw. der Ring 43, wobei dessen Durchbrechung jedoch nicht auf einen einzelnen Durchtrittskanal 7 beschränkt ist, sondern zunächst eine ringförmige Nut 50 aufweist, die eine Querverbindung von sämtlichen Durchtrittskanälen 7 bildet. Die Breite der Ringnut 50 ist größer als der Durchmesser der Durchmesserstufe 47, so daß durch die dadurch gebildete Hinterschneidung die Durchwirbelung des belüfteten Wasserstrahls begünstigt wird. Die Ringnut 50 hat einen abgeschrägten Boden, an den sich jedem Durchtrittskanal entsprechend eine im wesentlichen zylindrische Bohrung 51 anschließt, deren Durchmesser kleiner ist als der Durchmesser der kleinsten Durchmesserstufe 47 des Strahlenzerteilungsabschnittes 8. An ihrem dem unteren Ring 44 zugewandten Ende besitzt die zylindrische Bohrung 51 eine geringfügige, eine scharfe Innenkante aufweisende Verengung 52, die zusammen mit dem Eingangsquerschnitt der darunterliegenden Scheibe 44 wiederum eine Hinterschneidung bildet. Die Scheibe 44 weist an ihrer Eingangsseite wiederum eine umlaufende Ringnut 53 auf, die sämtliche Beruhigungsabschnitte der Durchtrittskanäle 7 miteinander verbindet. An diese Ringnut 53 schließt sich wiederum ein zylindrischer Abschnitt 54 an, dessen Durchmesser im wesentlichen dem zylindrischen Abschnitt 51 im Ring 43 entspricht oder geringfügig kleiner ist.Following the diameter step 47 with the smallest diameter is the disk or ring 43, the opening of which, however, is not restricted to a single passage 7, but initially has an annular groove 50, which forms a cross-connection of all passage 7. The width of the annular groove 50 is larger than the diameter of the diameter step 47, so that the resulting undercut promotes the swirling of the aerated water jet. The annular groove 50 has a bevelled bottom, to which each passage channel is adjoined by a substantially cylindrical bore 51, the diameter of which is smaller than the diameter of the smallest diameter step 47 of the beam splitting section 8. The cylindrical bore 51 has at its end facing the lower ring 44 a slight constriction 52, which has a sharp inner edge, which, together with the input cross section of the underlying disc 44, in turn forms an undercut. The disk 44 in turn has an encircling annular groove 53 on its input side, which connects all of the calming sections of the passage channels 7 to one another. This annular groove 53 is in turn followed by a cylindrical section 54, the diameter of which essentially corresponds to the cylindrical section 51 in the ring 43 or is slightly smaller.

Claims (14)

1. Device for the creation of a plurality of aerated water jets, especially a shower rose with a mechanism for producing non-aerated individual jets, at least one space (5) located below the same for the entry of air and a plurality of passage ducts (7) with obstacles (14, 20, 27, 28, 37, 38, 48, 49) projecting into the path of the individual jets for atomizing the latter, characterized in that at least two individual jets are directed on to each duct (7), in the axial direction ducts (7) have a substantially central opening, whose internal diameter is larger than that of a non-aerated individual jet, the exit direction of at least one individual jet is displaced with respect to the axis of the opening into the duct and the obstacles (14, 20, 27, 28, 37, 38, 48, 49) for atomizing the individual jets project laterally from the duct wall into the path of in each case at least one individual jet. '
2. Device according to claim 1, characterized in that, in the jet direction, the obstacles (14, 20, 27, 28, 37, 38, 48, 49) project as lateral projections or constrictions into the passage duct (7), particularly as obstacles and preferably on the inner wall of the duct are provided edges or shoulders (14, 20, 28, 37, 38, 48, 49) which slope or are arranged substantially at right angles to the jet direction.
3. Device according to claims 1 or 2, characterized in that the obstacles are constructed as steps (14, 15), preferably in staircase-like manner.
4. Device according to one of the claims 1 to 3, characterized in that the passage ducts (7) are wider at their inlet than at their outlet.
5. Device according to one of the preceding claims, characterized in that the cross-section of the ducts is asymmetrical and is in particular eccentrically reduced, the obstacles (14, 20, 27, 28, 37, 38, 48, 49) preferably only projecting from one side of the duct into the path of the individual jets.
6. Device according to one of the preceding claims, characterized in that, viewed in the direction of each individual jet, there are several successively arranged obstacles (14, 20, 27, 28, 37, 38, 48, 49) for atomizing the jet and which preferably have different shapes and in particular constitute a staircase-like separating mechanism (15, 37, 38, 48, 49) for the individual jets.
7. Device according to one of the preceding claims, characterized in that the ducts (7) are cross-sectionally rectangular, arcuate and/or substantially circular, the cross-sectional shape preferably changing in the jet direction and being in particular circular at the outlet point.
8. Device according to one of the preceding claims, characterized in that three to ten holes (4, 24, 29, 30) for the individual jets are directed on to each duct (7) or are associated therewith.
9. Device according to one of the preceding claims, characterized in that the theoretical path of at least one individual jet (30) but not that of all the individual jets associated with one duct (7) is not impeded by obstacles (27, 28).
10. Device according to one of the preceding claims, characterized in that, viewed in the jet direction, each duct has several portions and specifically at least one jet atomizing portion having the obstacles (14, 20, 27, 28, 37, 38, 48, 49), at least one jet vortexing portion (9) having cross-sectional constrictions and/or widened parts and preferably at least one jet shaping portion.
11. Device according to claim 10, characterized in that the cross-sectional constrictions and/or widened parts of the jet vortexing portion (9) are conical and/or stepped.
12. Device according to one of the claims 10 or 11, characterized in that at least one air introduction jet issues into the jet vortexing portions (9), preferably at a point with a constriction.
13. Device according to one of the preceding claims, characterized in that the passage ducts (7) are interconnected by transverse ducts (50, 53).
14. Device according to one of the preceding claims, characterized in that the passage ducts (7) are formed by openings in several axially juxtaposed disks or ring (11, 12, 13, 35, 36, 42, 44) and the axes of the openings are preferably displaced with respect to one another.
EP82102033A 1981-03-16 1982-03-13 Device for the creation of a plurality of aerated water jets, especially a shower rose Expired EP0060540B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102033T ATE9919T1 (en) 1981-03-16 1982-03-13 DEVICE FOR THE FORMATION OF A NUMBER OF AERATED JETS, ESPECIALLY SHOWER HEAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3110029 1981-03-16
DE19813110029 DE3110029A1 (en) 1981-03-16 1981-03-16 DEVICE, IN PARTICULAR SHOWER HEAD, FOR THE FORMATION OF VENTILATED WATER JETS

Publications (2)

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EP0060540A1 EP0060540A1 (en) 1982-09-22
EP0060540B1 true EP0060540B1 (en) 1984-10-17

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US (1) US4474329A (en)
EP (1) EP0060540B1 (en)
AT (1) ATE9919T1 (en)
DE (2) DE3110029A1 (en)
DK (1) DK157737C (en)
ES (1) ES510431A0 (en)
NO (1) NO820840L (en)

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Also Published As

Publication number Publication date
ES8303586A1 (en) 1983-02-01
DE3260987D1 (en) 1984-11-22
DE3110029A1 (en) 1982-09-30
ATE9919T1 (en) 1984-11-15
DK157737B (en) 1990-02-12
DK157737C (en) 1990-07-30
NO820840L (en) 1982-09-17
DE3110029C2 (en) 1988-05-19
DK115782A (en) 1982-09-17
US4474329A (en) 1984-10-02
ES510431A0 (en) 1983-02-01
EP0060540A1 (en) 1982-09-22

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