EP0633012B2 - Nozzle for a bathtub - Google Patents

Nozzle for a bathtub Download PDF

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Publication number
EP0633012B2
EP0633012B2 EP94108431A EP94108431A EP0633012B2 EP 0633012 B2 EP0633012 B2 EP 0633012B2 EP 94108431 A EP94108431 A EP 94108431A EP 94108431 A EP94108431 A EP 94108431A EP 0633012 B2 EP0633012 B2 EP 0633012B2
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EP
European Patent Office
Prior art keywords
insert element
nozzle
tub
nozzle body
outlet opening
Prior art date
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Expired - Lifetime
Application number
EP94108431A
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German (de)
French (fr)
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EP0633012A1 (en
EP0633012B1 (en
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Altura Leiden Holding BV
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Altura Leiden Holding BV
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • A61H33/6063—Specifically adapted for fitting in bathtub walls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • A61H33/6052—Having flow regulating means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths
    • A61H33/026—Gas nozzles specially adapted therefor

Definitions

  • the invention relates to a nozzle for a tub, especially whirlpool tub, according to the specified in the preamble of claim 1 Features.
  • Such a nozzle with an insert body is known from DE-U-89 01 137, the transverse bores and outflow openings of which open into an annular space.
  • the outflow openings are covered by a membrane tube which surrounds an essentially cylindrical part of the insert body, the sealing by means of the membrane tube being intended to be improved by sealing grooves in the insert body.
  • a cover part of the insert body overlaps a flange of the nozzle body, radially directed outflow channels being limited by cams.
  • the resulting radial outflow of air is disadvantageous insofar as a direct flow to a user lying in the tub is only possible to a limited extent and a powerful pump with high air throughput is required to achieve a good massage effect.
  • the entire cross section of the outflow channels mentioned is comparatively large and an axial movement of the insert element out of the nozzle body hardly leads to a noticeable change in the outflow speed or even to an increase in the same. Furthermore, the cams on the upper side of the flange and the cover part arranged above cause a not inconsiderable overall height beyond the inner surface of the tub, so that the arrangement of such a nozzle, particularly in the area of the tub floor, is quite a hindrance for a user.
  • a nozzle having the features of the preamble of claim 1 is known, with an annular gap between the inner surface of the nozzle body and the opposite outer surface of the insert element, the width of which is smaller in the direction of the annular outlet opening, the inner surface, which of the outlet opening is tapered inwards to the longitudinal axis, adjoins the internal thread and the insert element has a recess on its outside in the region of the radial openings, in which the named outer surface of the insert element ends.
  • a nozzle for installation in a bore in a Bathtub is known from DE-C-37 20 637.
  • the Insert body contains the flange of the nozzle body again overlapping cover part and due the overall high height, this nozzle is in one Arranged deepening of the inner tub surface, which increases the manufacturing effort.
  • the insert element contains radial breakthroughs, and that the medium flowing out essentially becomes is diverted upwards by 90 ° and afterwards again Deflection radially outwards Outlet openings between the cover and the Flange the nozzle body to flow radially outward.
  • the flow path specified in this way is conditional Turbulence and pressure drops, so that a corresponding high pump output for the outflowing Medium is required.
  • GB-A-311 161 is a nozzle known for applying liquid to this as a finely divided film or spray, for example as Paint application to apply on a base.
  • Nozzle contains a cylindrical block with a Number of recesses arranged in a spiral for swirling the liquid, the outlet openings of said recesses in an axial End face of said block are arranged.
  • the Manufacture of the fluid intended for swirling Requires spirally arranged recesses quite a bit of effort. The swirls cause a considerable pressure loss and the Arrangement of radial openings in the insert body and a radial outflow of the medium the insert body is not possible.
  • the nozzle body For feeding air or water into a Pan is also a nozzle from EP-A-284 661 known, the nozzle body one on the inner surface of the tub, expediently over a seal Has flange. Is the nozzle body in the appropriate hole, in particular the tub bottom, inserted, so an external thread of the nozzle body protrudes at the bottom of the tub bottom and there is attached by means of a union nut. Furthermore, the nozzle body has a connection for air, which thus comes from a connected Pipe system to be pumped into the interior of the tub can. There is also an insert element which from the inside of the tub in the Nozzle body inserted and via a threaded connection is screwed into the nozzle body. The insert element is essentially cylindrical and has an external thread for the thread connection mentioned.
  • DE-A-3 939 665 is a bath tub nozzle known whose cylindrical nozzle body again has a flange which is installed Condition on the inside surface of the tub floor rests.
  • a seal and an im Area of the underside of the tub bottom on a Male thread of the nozzle body screwed on the nozzle body is attached to the tub floor.
  • the inside of the nozzle body is axially continuous Bore on, through which from the connected Air line system to be pumped into the tub can.
  • the one from the inside of the tub in the Nozzle body insertable has on the Inside an annular rim, which the Grips over the flange of the nozzle body.
  • the insert element also is essentially cylindrical, wherein however parts of the thread over the entire length are worn out. Between the worn flat Areas as well as the internal thread of the nozzle body is a comparatively narrow one parallel to the longitudinal axis Gap present through which the nozzle body supplied air can flow into the tub interior. The gap width and thus the passage cross section is comparatively small and can also not be changed become.
  • EP-A-270 858 is an outlet nozzle for the outlet valve of a whirlpool tub with a channel for water supply and one Air supply channel known.
  • a circular outlet channel present, being inside the above Distribution body of the outlet channel into individual radial Outlet channels is divided.
  • the distance between the two Distribution body is predefined and a change through the outlet channel in the radial direction outflowing amount of water is not possible.
  • the inner distribution body and the tub floor in connection with the air supply duct standing gap its width cannot be changed.
  • the object of the invention based, the nozzle of the type mentioned with little To further educate effort that the Allows air or water to flow in reliably being, the inflow amount without difficulty changeable and the construction volume should be small. Flow losses, pressure drop due to deflection or The like should remain as small as possible so that a good inflow into the tub interior guaranteed is without a high printing performance of the Air duct system pump or the like is required is.
  • the nozzle should have compact dimensions and a low manufacturing and Require assembly effort. After all, cleaning is supposed to the nozzle easily and special tools or aids can be carried out.
  • the nozzle according to the invention stands out due to a simple and reliable construction and can be done without any special manufacturing effort getting produced.
  • the Nozzle body has one for inside the tub conically opening inner surface.
  • the insert element also has a conical outer surface, but is the opening angle is larger by a predetermined amount than the opening angle of the inner surface of the nozzle body.
  • the conical inner surface of the nozzle body on the one hand and the conical outer surface of the insert element on the other hand are coordinated in the way that according to the screw depth of the insert element the width of the gap through which the Medium flows out, can be specified.
  • the conical outer surface the insert element ends in the area of a Ring groove.
  • the insert element has one larger outer diameter compared to the bottom of the ring groove on, where there on the outer surface External thread for screwing into the nozzle body is provided.
  • the insert element an axial blind bore beginning at its lower end in which outgoing from said ring groove essentially radially aligned Holes open.
  • the area of the ring groove is one Number of such radially directed bores provided, between which only comparatively there are small bridges. The one that flowed in from below Air can therefore be used without significant redirection from the blind hole through the above Radial bores in the annular gap and finally in flow inside the tub.
  • the nozzle body screwed insert element can if necessary for the purpose of cleaning easily from the Nozzle body to be removed. After unscrewing of the insert element is the inside of the Nozzle body easily accessible and also the insert element can then be done without any particular difficulty getting cleaned. There are none to make the nozzle complex machines or tools required, and overall there are only a few processing steps for the production of the nozzle body on the one hand and the Insert element required on the other hand.
  • FIG. 1 shows a longitudinal section through the nozzle, which has a nozzle body 2 and an insert element 4 contains.
  • the nozzle body essentially faces it cylindrical outer surface an external thread 6 and a flange 8 at its upper end.
  • the Nozzle body 2 can be in a recess in a known manner or drilling a trough base 10 which is indicated here by dash-dotted lines is.
  • a seal not shown and one on the external thread 6 from the bottom screwed on the bottom of the tub the nozzle body is fixed in a known manner 2 on the tub floor.
  • the invention Floor nozzle only protrudes at height 12, which in corresponds essentially to the height of the flange the inner surface 14 of the tub.
  • the surface 16 of the flange 8 is conveniently such conical that the height at the outer edge lower than on the radially inner edge 18 of the outlet opening 20. From said edge 18 runs an inner surface 22 of the outlet opening conical inwards with a first opening angle 24.
  • the nozzle body contains one inside Through hole 26 through which the Medium to be pumped, in particular air or Water that can be supplied. At the lower end 28 of the nozzle body 2 suitable connection means for Connection of the floor nozzle to a pipe system for the mentioned medium are provided.
  • the through hole 26 contains an internal thread 30 in which the insert element 4 with its external thread 32 can be screwed in.
  • the first opening angle 24 lies expediently in the range between 40 and 100 degrees, preferably between 60 and 80 degrees.
  • the conical inner surface 22 extends from the internal thread 30 to the edge 18.
  • the insert element 2 has on its upper End one lying inside the tub and essentially flat surface 34.
  • the insert element 4 has an outer diameter 36, which is at most the same or a predetermined Amount is smaller than the inner diameter 38 of the nozzle body 2 or the conical inner surface 22 on said edge 18.
  • the insert element at its upper End has an outer surface 40 which likewise conical with a second opening angle 42 is trained. This second opening angle 42 is larger than the first opening angle 24 of the nozzle body 2.
  • the two opening angles 24 and 42 are in the Matched to each other that according to the Screw-in depth of the insert element 4 in the nozzle body 2 the gap width of the outlet opening 20 can be predetermined is.
  • the second opening angle 42 is in the Order of magnitude between 60 and 120, preferably between 80 and 100 degrees.
  • the second opening angle 42 of the Insert element 4 substantially 90 degrees while the first opening angle of the nozzle body 2 in is essentially 70 degrees. So there is an angle difference of around 20 degrees.
  • an annular gap 44 which towards the edge 18 or the outlet opening 20 tapers, creating particularly favorable flow conditions arise and the supplied medium under pressure according to arrows 46 from the annular Outlet opening 20 flows into the tub interior.
  • the gap width of the outlet opening 20 is variable and for this only the insert element 4 must be in the nozzle body 2 are screwed in more or less deeply.
  • the Inner surface 22 and the opposite outer surface 40 designed as conical surfaces. It is crucial in all embodiments that the Gap width of the outlet opening 20 by moving the Insert element 4 can be changed with respect to the nozzle body 2 is. If the insert element 4 is completely in screwed the nozzle body 2 such that the gap width the outlet opening 20 approaches zero, so is the Nozzle practically closed and the supplied Medium is prevented from flowing out. However, will the insert element 4, based on the illustrated Position, in the direction of the longitudinal axis 48 upwards screwed a little further out of the nozzle body 2, so the gap width of the outlet opening 20th larger and the medium can flow out more easily.
  • FIG. 2 shows the insert element in an axial section 4, which inside one with the longitudinal axis 48 has aligned blind bore 50.
  • the Blind drilling begins at the lower end 52 of the insert element and ends at a predetermined distance in front of the surface 34.
  • essentially a recess or an annular groove coaxial to the longitudinal axis 48 54 provided, which seen in the axial direction between the conical outer surface 40 and the External thread 32 is arranged.
  • recesses which in particular as radial bores 56 are formed, the connection between the Blind bore 54 and the outer region of the insert element 4 manufactured.
  • the conical one Outer surface 40 ends in the annular groove 54. How can be seen, the outer diameter 36 in the area the surface 34 much larger than the outer diameter 58 of the external thread 32.
  • Fig. 1 it can be seen that due to this configuration the medium from the blind bore 50 in essentially unimpeded radially outwards in the direction can flow to the outlet opening 20. basics Flow deflections, eddies or the like, which lead to a noticeable drop in pressure could be avoided.
  • the depth of the ring groove 54 measured from the outer diameter 58, is expediently larger than the wall thickness 60 of the insert element 4 in the area of the external thread 58. It is thus achieved that the insert element 4 in Area of the annular groove 54 or the existing there radial recesses a much smaller thickness 62 has said wall thickness 60. expedient the thickness 62 is at most only half as large as that Wall thickness 60.
  • This dimensioning ensures that the inner nozzle in the area of the recesses or radial bores 56 a favorable Has flow pattern for the medium that largely unhindered from the blind bore 50 Outlet opening can flow. From the above Reasons is the diameter of the holes 56 in essentially the same size as the axial length 64 of the Bottom of the ring groove 54.
  • Fig. 3 shows a section along line A. 2, the one behind the plane of the drawing Part of the insert element with the external thread is not shown for the sake of simplicity. It there are a total of six radial bores 56, between which comparatively narrow webs 66 stand. In this respect, there is minimal influence on the Flow conditions guaranteed.
  • FIG. 4 shows the insert element 4 in Direction B according to FIG. 2 on the flat surface 34.
  • Three additional holes 68 are provided, which is a direct connection from the inside of the Insert element 4 existing blind hole in the Form the inside of the tub.

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

Abstract

The nozzle body and inserting element have opposite faces (22,40), between which the outlet aperture is formed. The inserting element has an outer thread engaging the inner thread (30) of the nozzle body. This enables an axial motion of the inserting element in the direction of the longitudinal axis (48) of the nozzle body to change the gap width of the aperture. Pref. the inner thread lies in an axial through bore (26) of the nozzle body.

Description

Die Erfindung bezieht sich auf eine Düse für eine Wanne, insbesondere Whirlpool-Wanne, gemäß den im Oberbegriff des Patentanspruchs 1 angegebenen Merkmalen.The invention relates to a nozzle for a tub, especially whirlpool tub, according to the specified in the preamble of claim 1 Features.

Aus DE-U-89 01 137 ist eine derartige Düse mit einem Einsatzkörper bekannt, dessen Querbohrungen und Ausströmöffnungen in einen Ringraum münden. Die Ausströmöffnungen sind von einem Membranschlauch abgedeckt, welcher einen im wesentlichen zylindrischen Teil des Einsatzkörpers umgibt, wobei durch Dichtungsrillen im Einsatzkörper die Abdichtung mittels des Membranschlauchs verbessert werden soll. Ein Abdeckteil des Einsatzkörpers übergreift einen Flansch des Düsenkörpers, wobei mittels Nocken radial gerichtete Ausströmkanäle begrenzt werden. Die sich hierbei ergebende, radiale Abströmung der Luft ist insoweit nachteilig, als eine unmittelbare Anströmung eines in der Wanne liegenden Benutzers nur bedingt möglich ist und zur Erzielung einer guten Massagewirkung eine leistungsstarke Pumpe mit hohem Luftdurchsatz benötigt wird. Der gesamte Querschnitt der genannten Ausströmkanäle ist vergleichsweise groß und eine axiale Bewegung des Einsatzelements aus dem Düsenkörper heraus führt kaum zu einer merklichen Veränderung der Ausströmgeschwindigkeit oder gar zu einer Erhöhung derselben. Desweiteren bedingen die an der Oberseite des Flansches vorhandenen Nocken sowie das darüber angeordnete Abdeckteil eine nicht unerhebliche Bauhöhe über die Wanneninnenfläche hinaus, so daß die Anordnung einer derartigen Düse insbesondere im Bereich des Wannenbodens, für einen Benutzer recht hinderlich ist.
Ferner ist aus der EP 0 503 239 A1 eine die Merkmale der Oberbegriffs des Patentanspruchs 1 aufweisende Düse bekannt mit einem Ringspalt zwischen der Innenfläche des Düsenkörpers und der gegenüberliegenden Außenfläche des Einsatzelements dessen Breite in Richtung zur ringförmigen Austrittsöffnung kleiner wird, wobei die Innenfläche, welche von der Austrittsöffnung nach innen zur Längsachse verjüngt ausgebildet ist, an das Innengewinde anschließt und wobei das Einsatzelement an seiner Außenseite im Bereich der radialen Durchbrechungen einen Einstich aufweist, in welchem die gennante Außenfläche des Einsatzelements endet.Such a nozzle with an insert body is known from DE-U-89 01 137, the transverse bores and outflow openings of which open into an annular space. The outflow openings are covered by a membrane tube which surrounds an essentially cylindrical part of the insert body, the sealing by means of the membrane tube being intended to be improved by sealing grooves in the insert body. A cover part of the insert body overlaps a flange of the nozzle body, radially directed outflow channels being limited by cams. The resulting radial outflow of air is disadvantageous insofar as a direct flow to a user lying in the tub is only possible to a limited extent and a powerful pump with high air throughput is required to achieve a good massage effect. The entire cross section of the outflow channels mentioned is comparatively large and an axial movement of the insert element out of the nozzle body hardly leads to a noticeable change in the outflow speed or even to an increase in the same. Furthermore, the cams on the upper side of the flange and the cover part arranged above cause a not inconsiderable overall height beyond the inner surface of the tub, so that the arrangement of such a nozzle, particularly in the area of the tub floor, is quite a hindrance for a user.
Furthermore, from EP 0 503 239 A1 a nozzle having the features of the preamble of claim 1 is known, with an annular gap between the inner surface of the nozzle body and the opposite outer surface of the insert element, the width of which is smaller in the direction of the annular outlet opening, the inner surface, which of the outlet opening is tapered inwards to the longitudinal axis, adjoins the internal thread and the insert element has a recess on its outside in the region of the radial openings, in which the named outer surface of the insert element ends.

Eine Düse zum Einbau in eine Bohrung einer Badewanne ist aus der DE-C-37 20 637 bekannt. Der Einsatzkörper enthält einen den Flansch des Düsenkörpers wiederum übergreifenden Abdeckteil und aufgrund der insgesamt hohen Bauhöhe ist diese Düse in einer Vertiefung der Wanneninnenfläche angeordnet, wodurch der Fertigungsaufwand erhöht wird. Das Einsatzelement enthält radiale Durchbrechungen, und das aus diesen ausströmende Medium wird im wesentlichen um 90° nach oben umgelenkt wird, um nach nochmaliger Umlenkung radial nach außen zu Austrittsöffnungen zwischen dem Abdeckteil und dem Flansch des Düsenkörpers radial nach außen zu strömen. Der derart vorgegebene Strömungsweg bedingt Turbulenzen und Druckverluste, so daß eine entsprechend hohe Pumpenleistung für das ausströmende Medium erforderlich ist.A nozzle for installation in a bore in a Bathtub is known from DE-C-37 20 637. The Insert body contains the flange of the nozzle body again overlapping cover part and due the overall high height, this nozzle is in one Arranged deepening of the inner tub surface, which increases the manufacturing effort. The insert element contains radial breakthroughs, and that the medium flowing out essentially becomes is diverted upwards by 90 ° and afterwards again Deflection radially outwards Outlet openings between the cover and the Flange the nozzle body to flow radially outward. The flow path specified in this way is conditional Turbulence and pressure drops, so that a corresponding high pump output for the outflowing Medium is required.

Desweiteren ist aus GB-A-311 161 eine Düse zum Ausbringen von Flüssigkeit bekannt, um diese als einen fein verteilten Film oder Spray, beispielsweise als Farbauftrag, auf eine Unterlage aufzubringen. Diese für einen anderen Einsatzzweck als für Wannen vorgesehene Düse enthält einen zylindrischen Block mit einer Anzahl von spiralförmig angeordneten Ausnehmungen zur Verwirbelung der Flüssigkeit, wobei die Austrittsöffnungen der genannten Ausnehmungen in einer axialen Stirnfläche des genannten Blocks angeordnet sind. Die Fertigung der zur Verwirbelung der Flüssigkeit vorgesehenen spiralförmig angeordneten Ausnehmungen erfordert einen recht hohen Aufwand. Die Verwirbelungen bedingen einen beachtlichen Druckverlust und die Anordnung von radialen Durchbrechungen im Einsatzkörper und ein radiales Ausströmen des Mediums aus dem Einsatzkörper ist nicht möglich.Furthermore, GB-A-311 161 is a nozzle known for applying liquid to this as a finely divided film or spray, for example as Paint application to apply on a base. This for a different purpose than intended for tubs Nozzle contains a cylindrical block with a Number of recesses arranged in a spiral for swirling the liquid, the outlet openings of said recesses in an axial End face of said block are arranged. The Manufacture of the fluid intended for swirling Requires spirally arranged recesses quite a bit of effort. The swirls cause a considerable pressure loss and the Arrangement of radial openings in the insert body and a radial outflow of the medium the insert body is not possible.

Zum Zuführen von Luft oder Wasser in eine Wanne ist ferner aus der EP-A-284 661 eine Düse bekannt, deren Düsenkörper einen an der Wanneninnenfläche, zweckmäßig über eine Dichtung, aufliegenden Flansch aufweist. Ist der Düsenkörper in die entsprechende Bohrung, insbesondere des Wannenbodens, eingesetzt, so ragt ein Außengewinde des Düsenkörpers an der Unterseite des Wannenbodens heraus und dort erfolgt mittels einer Überwurfmutter die Befestigung. Ferner weist der Düsenkörper einen Anschluß für Luft auf, welche somit aus einem angeschlossenen Leitungssystem in das Innere der Wanne gepumpt werden kann. Ferner ist ein Einsatzelement vorhanden, welches von der Innenseite der Wanne her in den Düsenkörper eingesetzt und über eine Gewindeverbindung in den Düsenkörper eingeschraubt ist. Das Einsatzelement ist im wesentlichen zylindrisch ausgebildet und besitzt in seiner Außenfläche ein Außengewinde für die genannte Gewindeverbindung. Ferner weist dieses Einsatzelement an seiner Außenfläche über seine gesamte Länge durchgehende Längsnuten auf. Wird durch das Leitungssystem Luft zugeführt, so strömt diese durch die genannten Langsnuten in das Wanneninnere. Durch den Querschnitt der genannten Längsnuten ist die einströmende Luftmenge vorgegeben und eine Veränderung oder Regulierung der Luftmenge nicht ohne weiteres möglich.For feeding air or water into a Pan is also a nozzle from EP-A-284 661 known, the nozzle body one on the inner surface of the tub, expediently over a seal Has flange. Is the nozzle body in the appropriate hole, in particular the tub bottom, inserted, so an external thread of the nozzle body protrudes at the bottom of the tub bottom and there is attached by means of a union nut. Furthermore, the nozzle body has a connection for air, which thus comes from a connected Pipe system to be pumped into the interior of the tub can. There is also an insert element which from the inside of the tub in the Nozzle body inserted and via a threaded connection is screwed into the nozzle body. The insert element is essentially cylindrical and has an external thread for the thread connection mentioned. Furthermore, this points Insert element on its outer surface over its full length of continuous longitudinal grooves. Becomes supplied through the duct system air, so flows this through the mentioned longitudinal grooves into the tub interior. Through the cross section of the mentioned longitudinal grooves the inflowing air quantity is predetermined and a change or regulation of the air volume not easily possible.

Ferner ist aus der DE-A-3 939 665 eine Badenwannendüse bekannt, deren zylindrischer Düsenkörper wiederum einen Flansch aufweist, welcher im eingebauten Zustand auf der Innenfläche des Wannenbodens aufliegt. Mittels einer Dichtung und einer im Bereich der Unterseite des Wannenbodens auf ein Außengewinde des Düsenkörpers aufgeschraubte Mutter ist der Düsenkörper am Wannenboden befestigt. Der Düsenkörper weist innen eine axial durchgehende Bohrung auf, durch welche aus dem angeschlossenen Leitungssystem Luft in die Wanne gepumpt werden kann. Der von der Innenseite der Wanne her in den Düsenkörper einsetzbare Düsenkopf besitzt auf der Innenseite einen ringförmigen Rand, welcher den Flansch des Düsenkörpers übergreift. Der Flansch und ebenso der Düsenkopf mit dem genannten Rand weisen aus Gründen der Festigkeit und Stabilität jeweils eine entsprechende Wandstärke auf, mit der Folge, daß die Oberfläche des Düsenkopfes in einem recht erheblichen Maß über die Innenfläche der Wanne vorsteht. In der Praxis stehen derartige Düsenkörper regelmäßig etwa 5-8 mm über die Innenfläche des Wannenbodens vor und sind damit ein Hindernis für einen Benutzer.Furthermore, DE-A-3 939 665 is a bath tub nozzle known whose cylindrical nozzle body again has a flange which is installed Condition on the inside surface of the tub floor rests. By means of a seal and an im Area of the underside of the tub bottom on a Male thread of the nozzle body screwed on the nozzle body is attached to the tub floor. The inside of the nozzle body is axially continuous Bore on, through which from the connected Air line system to be pumped into the tub can. The one from the inside of the tub in the Nozzle body insertable has on the Inside an annular rim, which the Grips over the flange of the nozzle body. The flange and also point the nozzle head with the mentioned edge for reasons of strength and stability, respectively a corresponding wall thickness, with the result that the surface of the nozzle head in a fairly substantial Protrudes beyond the inner surface of the tub. In In practice, such nozzle bodies are regular about 5-8 mm above the inner surface of the tub floor before and are therefore an obstacle for a user.

Weiterhin ist aus DE-U-92 14 298 eine sanitäre Luftsprudeldüse bekannt, deren Einsatzelement gleichfalls im wesentlichen zylindrisch ausgebildet ist, wobei jedoch Teile des Gewindes über die gesamte Länge abgetragen sind. Zwischen den abgetragenen flachen Bereichen sowie dem Innengewinde des Düsenkörpers ist ein zur Längsachse paralleler, vergleichsweise enger Spalt vorhanden, durch welchen die dem Düsenkörper zugeführte Luft in das Wanneninnere abströmen kann. Die Spaltbreite und damit der Durchtrittsquerschnitt ist vergleichsweise klein und kann zudem nicht verändert werden.Furthermore, from DE-U-92 14 298 is a sanitary Air jet nozzle known, the insert element also is essentially cylindrical, wherein however parts of the thread over the entire length are worn out. Between the worn flat Areas as well as the internal thread of the nozzle body is a comparatively narrow one parallel to the longitudinal axis Gap present through which the nozzle body supplied air can flow into the tub interior. The gap width and thus the passage cross section is comparatively small and can also not be changed become.

Schließlich ist aus der EP-A-270 858 eine Austrittsdüse für das Austrittsventil einer Whirlpool-Wan mit einem Kanal für die Wasserzufuhr sowie einem Kanal für die Luftzufuhr bekannt. Zwischen einem äußeren tellerförmigen Verteilungskörper und einem inneren Verteilungskörper, welche mittels Rippen miteinander verbunden sind, ist ein kreisförmiger Austrittskanal vorhanden, wobei im Inneren der genannten Verteilungskörper der Austrittskanal in einzelne radiale Austrittskanäle unterteilt ist. Der Abstand der beiden Verteilungskörper ist definiert vorgegeben und eine Veränderung der durch den Austrittskanal in radialer Richtung abströmenden Wassermenge ist nicht möglich. Ferner ist zwischen dem inneren Verteilungskörper und dem Wannenboden ein mit dem Luftzufuhrkanal in Verbindung stehender Spalt vorhanden, dessen Breite nicht veränderbar ist.Finally, EP-A-270 858 is an outlet nozzle for the outlet valve of a whirlpool tub with a channel for water supply and one Air supply channel known. Between one outer plate-shaped distribution body and one inner distribution body, which is interconnected by means of ribs are connected is a circular outlet channel present, being inside the above Distribution body of the outlet channel into individual radial Outlet channels is divided. The distance between the two Distribution body is predefined and a change through the outlet channel in the radial direction outflowing amount of water is not possible. Furthermore, between the inner distribution body and the tub floor in connection with the air supply duct standing gap, its width cannot be changed.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, die Düse der genannten Art mit geringem Aufwand dahingehend weiter zu bilden, daß das Einströmen von Luft oder Wasser zuverlässig ermöglicht wird, wobei die Einströmmenge ohne Schwierigkeiten veränderbar und das Bauvolumen gering sein soll. Strömungsverluste, Druckabfall durch Umlenkung oder dergleichen sollen möglichst gering bleiben, damit eine gute Einströmung in das Wanneninnere gewährleistet ist, ohne daß hierfür eine hohe Druckleistung der Pumpe des Luftleitsystems oder dergleichen erforderlich ist. Die Düse soll kompakte Abmessungen aufweisen und einen geringen Fertigungs- und Montageaufwand erfordern. Schließlich soll die Reinigung der Düse ohne weiteres und besondere Werkzeuge oder Hilfsmittel durchführbar sein.Proceeding from this, the object of the invention based, the nozzle of the type mentioned with little To further educate effort that the Allows air or water to flow in reliably being, the inflow amount without difficulty changeable and the construction volume should be small. Flow losses, pressure drop due to deflection or The like should remain as small as possible so that a good inflow into the tub interior guaranteed is without a high printing performance of the Air duct system pump or the like is required is. The nozzle should have compact dimensions and a low manufacturing and Require assembly effort. After all, cleaning is supposed to the nozzle easily and special tools or aids can be carried out.

Die Lösung dieser Aufgabe erfolgt gemäß den kennzeichnenden Merkmalen des Patentanspruchs 1.This task is solved according to the characterizing features of claim 1.

Die erfindungsgemäße Düse zeichnet sich durch eine einfache und funktionssichere Konstruktion aus und kann ohne besonderen Fertigungsaufwand hergestellt werden. Im Bereich der Wanneninnenfläche weist die Düse nur eine sehr kleine Höhe auf. Der Düsenkörper weist eine zum Wanneninnern sich konisch öffnende Innenfläche auf. Das Einsatzelement weist gleichfalls eine konische Außenfläche auf, doch ist der Öffnungswinkel in einem vorgegebenen Maße größer als der Öffnungswinkel der Innenfläche des Düsenkörpers. Die konische Innenfläche des Düsenkörpers einerseits und die konische Außenfläche des Einsatzelements andererseits sind in der Weise abgestimmt, daß entsprechend der Einschraubtiefe des Einsatzelements die Breite des Spaltes, durch welchen das Medium ausströmt, vorgebbar ist. Die konische Außenfläche des Einsatzelements endet im Bereich einer Ringnut. An die Ringnut zum unteren Ende des Einsatzelements anschließend weist das Einsatzelement einen gegenüber dem Boden der Ringnut größeren Außendurchmesser auf, wobei dort an der Außenfläche das Außengewinde zum Einschrauben in den Düsenkörper vorgesehen ist. Schließlich weist das Einsatzelement eine an seinem unteren Ende beginnende axiale Sackbohrung auf, in welche von der genannten Ringnut ausgehende im wesentlichen radial ausgerichtete Bohrungen münden. Im Bereich der Ringnut ist eine Anzahl derartiger radial gerichteter Bohrungen vorgesehen, zwischen welchen lediglich vergleichsweise kleine Stege vorhanden sind. Die von unten her eingeströmte Luft kann somit ohne wesentliche Umlenkungen aus der Sackbohrung durch die genannten Radialbohrungen in den Ringspalt und schließlich in das Wanneninnere strömen. Das in den Düsenkörper eingeschraubte Einsatzelement kann bedarfsweise zum Zwecke der Reinigung problemlos aus dem Düsenkörper entfernt werden. Nach dem Herausschrauben des Einsatzelements ist das Innere des Düsenkörpers leicht zugänglich und auch das Einsatzelement kann dann ohne besondere Schwierigkeiten gereinigt werden. Zur Herstellung der Düse sind keine aufwendigen Maschinen oder Werkzeuge erforderlich, und insgesamt sind nur wenige Bearbeitungsschritte zur Herstellung des Düsenkörpers einerseits und des Einsatzelements andererseits erforderlich.The nozzle according to the invention stands out due to a simple and reliable construction and can be done without any special manufacturing effort getting produced. In the area of the tub interior the nozzle is only a very small height. The Nozzle body has one for inside the tub conically opening inner surface. The insert element also has a conical outer surface, but is the opening angle is larger by a predetermined amount than the opening angle of the inner surface of the nozzle body. The conical inner surface of the nozzle body on the one hand and the conical outer surface of the insert element on the other hand are coordinated in the way that according to the screw depth of the insert element the width of the gap through which the Medium flows out, can be specified. The conical outer surface the insert element ends in the area of a Ring groove. At the ring groove to the lower end of the insert element then the insert element has one larger outer diameter compared to the bottom of the ring groove on, where there on the outer surface External thread for screwing into the nozzle body is provided. Finally, the insert element an axial blind bore beginning at its lower end in which outgoing from said ring groove essentially radially aligned Holes open. In the area of the ring groove is one Number of such radially directed bores provided, between which only comparatively there are small bridges. The one that flowed in from below Air can therefore be used without significant redirection from the blind hole through the above Radial bores in the annular gap and finally in flow inside the tub. That in the nozzle body screwed insert element can if necessary for the purpose of cleaning easily from the Nozzle body to be removed. After unscrewing of the insert element is the inside of the Nozzle body easily accessible and also the insert element can then be done without any particular difficulty getting cleaned. There are none to make the nozzle complex machines or tools required, and overall there are only a few processing steps for the production of the nozzle body on the one hand and the Insert element required on the other hand.

Weiterbildungen und besondere Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Further training and special designs the invention are specified in the subclaims.

Die Erfindung wird nachfolgend anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch die Düse,
Fig. 2
einen Schnitt nur durch das Einsatzelement,
Fig. 3
ein Schnitt entlang Schnittlinie A - A gemäß Fig. 2,
Fig.4
eine Aufsicht auf das Einsatzelement in Blickrichtung B gemäß Fig. 2
The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawing. Show it:
Fig. 1
a longitudinal section through the nozzle,
Fig. 2
a cut only through the insert element,
Fig. 3
3 shows a section along section line A - A according to FIG. 2,
Figure 4
a top view of the insert element in viewing direction B according to FIG. 2

Fig. 1 zeigt einen Längsschnitt durch die Düse, welcher einen Düsenkörper 2 sowie ein Einsatzelement 4 enthält. Der Düsenkörper weist an seiner im wesentlichen zylindrischen Außenfläche ein Außengewinde 6 und an seinem oberen Ende einen Flansch 8 auf. Der Düsenkörper 2 kann in bekannter Weise in eine Ausnehmung oder Bohrung eines Wannenbodens 10 angesetzt werden, welcher hier strichpunktiert angedeutet ist. Mittels einer nicht weiter dargestellten Dichtung sowie eines auf das Außengewinde 6 von der Unterseite des Wannenbodens her aufgeschraubten Mutter erfolgt in bekannter Weise die Festlegung des Düsenkörpers 2 am Wannenboden. Die erfindungsgemäße Bodendüse ragt lediglich in der Höhe 12, welche im wesentlichen der Höhe des Flansches entspricht, über die Innenfläche 14 der Wanne vor. Die Oberfläche 16 des Flansches 8 ist in zweckmäßiger Weise derart konisch ausgebildet, daß die Höhe am Außenrand niedriger ist als an der radial weiter innenliegenden Kante 18 der Austrittsöffnung 20. Von der genannten Kante 18 verläuft eine Innenfläche 22 der Austrittsöffnung konisch nach innen, und zwar mit einem ersten Öffnungswinkel 24. Der Düsenkörper enthält innen eine Durchgangsbohrung 26, durch welche das in die Wanne zu fördernde Medium, insbesondere Luft oder Wasser, zuführbar ist. Am unteren Ende 28 des Düsenkörpers 2 können geeignete Verbindungsmittel zum Anschluß der Bodendüse an ein Leitungssystem für das genannte Medium vorgesehen werden. Die Durchgangsbohrung 26 enthält ein Innengewinde 30, in welches das Einsatzelement 4 mit seinem Außengewinde 32 einschraubbar ist. Der erste Öffnungswinkel 24 liegt in zweckmäßiger Weise im Bereich zwischen 40 und 100 Grad, bevorzugt zwischen 60 und 80 Grad. Die konische Innenfläche 22 erstreckt sich vom Innengewinde 30 bis zur Kante 18.1 shows a longitudinal section through the nozzle, which has a nozzle body 2 and an insert element 4 contains. The nozzle body essentially faces it cylindrical outer surface an external thread 6 and a flange 8 at its upper end. The Nozzle body 2 can be in a recess in a known manner or drilling a trough base 10 which is indicated here by dash-dotted lines is. By means of a seal, not shown and one on the external thread 6 from the bottom screwed on the bottom of the tub the nozzle body is fixed in a known manner 2 on the tub floor. The invention Floor nozzle only protrudes at height 12, which in corresponds essentially to the height of the flange the inner surface 14 of the tub. The surface 16 of the flange 8 is conveniently such conical that the height at the outer edge lower than on the radially inner edge 18 of the outlet opening 20. From said edge 18 runs an inner surface 22 of the outlet opening conical inwards with a first opening angle 24. The nozzle body contains one inside Through hole 26 through which the Medium to be pumped, in particular air or Water that can be supplied. At the lower end 28 of the nozzle body 2 suitable connection means for Connection of the floor nozzle to a pipe system for the mentioned medium are provided. The through hole 26 contains an internal thread 30 in which the insert element 4 with its external thread 32 can be screwed in. The first opening angle 24 lies expediently in the range between 40 and 100 degrees, preferably between 60 and 80 degrees. The conical inner surface 22 extends from the internal thread 30 to the edge 18.

Das Einsatzelement 2 weist an seinem oberen Ende eine im Wanneninneren liegende und im wesentlichen plane Oberfläche 34 auf. An der Oberfläche 34 besitzt das Einsatzelement 4 einen Außendurchmesser 36, welcher höchstens gleich oder um einen vorgegebenen Betrag kleiner ist als der Innendurchmesser 38 des Düsenkörpers 2 bzw. der konischen Innenfläche 22 an der genannten Kante 18. Von maßgebender Bedeutung ist ferner, daß das Einsatzelement an seinem oberen Ende eine Außenfläche 40 aufweist, welche gleichfalls konisch mit einem zweiten Öffnungswinkel 42 ausgebildet ist. Dieser zweite Öffnungswinkel 42 ist größer als der erste Öffnungswinkel 24 des Düsenkörpers 2. Die beiden Öffnungswinkel 24 und 42 sind in der Weise aufeinander abgestimmt, daß entsprechend der Einschraubtiefe des Einsatzelements 4 in den Düsenkörper 2 die Spaltbreite der Austrittsöffnung 20 vorgebbar ist. Der zweite Öffnungswinkel 42 liegt in der Größenordnung zwischen 60 und 120, bevorzugt zwischen 80 und 100 Winkelgraden. In der bevorzugten Ausführungsform ist der zweite Öffnungswinkel 42 des Einsatzelements 4 im wesentlichen 90 Grad groß, während der erste Öffnungswinkel des Düsenkörpers 2 im wesentlichen 70 Grad beträgt. Somit ist eine Winkeldifferenz von ca. 20 Grad vorhanden. Zwischen der Innenfläche 22 des Düsenkörpers 2 und der gegenüberliegenden Außenfläche 40 des Einsatzelements 4 ist somit ein Ringspalt 44 vorhanden, welcher in Richtung zur Kante 18 bzw. der Austrittsöffnung 20 sich verjüngt, wodurch besonders günstige Strömungsverhältnisse sich ergeben und das zugeführte Medium unter Druck gemäß den Pfeilen 46 aus der ringförmigen Austrittsöffnung 20 in das Wanneninnere strömt. Die Spaltbreite der Austrittsöffnung 20 ist variabel und hierfür muß lediglich das Einsatzelement 4 in den Düsenkörper 2 mehr oder weniger tief eingeschraubt werden.The insert element 2 has on its upper End one lying inside the tub and essentially flat surface 34. On the surface 34 the insert element 4 has an outer diameter 36, which is at most the same or a predetermined Amount is smaller than the inner diameter 38 of the nozzle body 2 or the conical inner surface 22 on said edge 18. Of decisive importance is further that the insert element at its upper End has an outer surface 40 which likewise conical with a second opening angle 42 is trained. This second opening angle 42 is larger than the first opening angle 24 of the nozzle body 2. The two opening angles 24 and 42 are in the Matched to each other that according to the Screw-in depth of the insert element 4 in the nozzle body 2 the gap width of the outlet opening 20 can be predetermined is. The second opening angle 42 is in the Order of magnitude between 60 and 120, preferably between 80 and 100 degrees. In the preferred Embodiment is the second opening angle 42 of the Insert element 4 substantially 90 degrees while the first opening angle of the nozzle body 2 in is essentially 70 degrees. So there is an angle difference of around 20 degrees. Between the inner surface 22 of the nozzle body 2 and the opposite outer surface 40 of the insert element 4 there is thus an annular gap 44 which towards the edge 18 or the outlet opening 20 tapers, creating particularly favorable flow conditions arise and the supplied medium under pressure according to arrows 46 from the annular Outlet opening 20 flows into the tub interior. The The gap width of the outlet opening 20 is variable and for this only the insert element 4 must be in the nozzle body 2 are screwed in more or less deeply.

Bei der dargestellten Ausführungsform sind die Innenfläche 22 und die gegenüberliegende Außenfläche 40 als konische Flächen ausgebildet. Entscheidend ist bei allen Ausführungsformen, daß die Spaltbreite der Austrittsöffnung 20 durch Bewegen des Einsatzelements 4 bezüglich des Düsenkörpers 2 veränderbar ist. Wird das Einsatzelement 4 vollständig in den Düsenkörper 2 derart eingeschraubt, daß die Spaltbreite der Austrittsöffnung 20 gegen Null geht, so ist die Düse praktisch geschlossen und das zugeführte Medium wird am Ausströmen gehindert. Wird hingegen das Einsatzelement 4, bezogen auf die dargestellte Position, in Richtung der Längsachse 48 nach oben etwas weiter aus dem Düsenkörper 2 herausgeschraubt, so wird die Spaltbreite der Austrittsöffnung 20 größer und das Medium kann leichter ausströmen.In the illustrated embodiment, the Inner surface 22 and the opposite outer surface 40 designed as conical surfaces. It is crucial in all embodiments that the Gap width of the outlet opening 20 by moving the Insert element 4 can be changed with respect to the nozzle body 2 is. If the insert element 4 is completely in screwed the nozzle body 2 such that the gap width the outlet opening 20 approaches zero, so is the Nozzle practically closed and the supplied Medium is prevented from flowing out. However, will the insert element 4, based on the illustrated Position, in the direction of the longitudinal axis 48 upwards screwed a little further out of the nozzle body 2, so the gap width of the outlet opening 20th larger and the medium can flow out more easily.

Fig. 2 zeigt in einem axialen Schnitt das Einsatzelement 4, welches im Inneren eine mit der Längsachse 48 fluchtende Sackbohrung 50 aufweist. Die Sackbohrung beginnt am unteren Ende 52 des Einsatzelements und endet in einem vorgegebenen Abstand vor der Oberfläche 34. Ferner ist im wesentlichen koaxial zur Längsachse 48 ein Einstich oder eine Ringnut 54 vorgesehen, welche in axialer Richtung gesehen zwischen der konischen Außenfläche 40 und dem Außengewinde 32 angeordnet ist. Mittels Ausnehmungen, welche insbesondere als radiale Bohrungen 56 ausgebildet sind, wird die Verbindung zwischen der Sackbohrung 54 und dem Außenbereich des Einsatzelements 4 hergestellt. Die konisch ausgebildete Außenfläche 40 endet in der Ringnut 54. Wie ersichtlich, ist der Außendurchmesser 36 im Bereich der Oberfläche 34 wesentlich größer als der Außendurchmesser 58 des Außengewindes 32. In Verbindung mit Fig. 1 wird ersichtlich, daß aufgrund dieser Ausgestaltung das Medium aus der Sackbohrung 50 im wesentlichen ungehindert radial nach außen in Richtung zur Austrittsöffnung 20 strömen kann. Wesentliche Strömungsumlenkungen, Verwirbelungen oder dergleichen, welche zu einem merklichen Druckabfall führen könnten, werden vermieden. Die Tiefe der Ringnut 54, und zwar gemessen von dem Außendurchmesser 58, ist in zweckmäßiger Weise größer als die Wanddicke 60 des Einsatzelements 4 im Bereich des Außengewindes 58. Es wird also erreicht, daß das Einsatzelement 4 im Bereich der Ringnut 54 bzw. der dort vorhandenen radialen Ausnehmungen eine wesentlich kleinere Dicke 62 als die genannte Wanddicke 60 besitzt. Zweckmäßig ist die Dicke 62 höchstens nur halb so groß wie die Wanddicke 60. Durch diese Dimensionierung wird sichergestellt, daß die Innendüse im Bereich der Ausnehmungen bzw. radialen Bohrungen 56 einen günstigen Strömungsverlauf für das Medium besitzt, welches weitgehend ungehindert aus der Sackbohrung 50 zur Austrittsöffnung strömen kann. Aus den genannten Gründen ist der Durchmesser der Bohrungen 56 im wesentlichen gleich groß wie die axiale Länge 64 des Bodens der Ringnut 54.2 shows the insert element in an axial section 4, which inside one with the longitudinal axis 48 has aligned blind bore 50. The Blind drilling begins at the lower end 52 of the insert element and ends at a predetermined distance in front of the surface 34. Furthermore, essentially a recess or an annular groove coaxial to the longitudinal axis 48 54 provided, which seen in the axial direction between the conical outer surface 40 and the External thread 32 is arranged. By means of recesses, which in particular as radial bores 56 are formed, the connection between the Blind bore 54 and the outer region of the insert element 4 manufactured. The conical one Outer surface 40 ends in the annular groove 54. How can be seen, the outer diameter 36 in the area the surface 34 much larger than the outer diameter 58 of the external thread 32. In connection with Fig. 1 it can be seen that due to this configuration the medium from the blind bore 50 in essentially unimpeded radially outwards in the direction can flow to the outlet opening 20. basics Flow deflections, eddies or the like, which lead to a noticeable drop in pressure could be avoided. The depth of the ring groove 54, measured from the outer diameter 58, is expediently larger than the wall thickness 60 of the insert element 4 in the area of the external thread 58. It is thus achieved that the insert element 4 in Area of the annular groove 54 or the existing there radial recesses a much smaller thickness 62 has said wall thickness 60. expedient the thickness 62 is at most only half as large as that Wall thickness 60. This dimensioning ensures that the inner nozzle in the area of the recesses or radial bores 56 a favorable Has flow pattern for the medium that largely unhindered from the blind bore 50 Outlet opening can flow. From the above Reasons is the diameter of the holes 56 in essentially the same size as the axial length 64 of the Bottom of the ring groove 54.

Fig. 3 zeigt einen Schnitt entlang Linie A gemäß Fig. 2, wobei der hinter der Zeichenebene liegende Teil des Einsatzelements mit dem Außengewinde der Einfachheit halber nicht dargestellt ist. Es sind insgesamt sechs radiale Bohrungen 56 vorhanden, zwischen welchen vergleichsweise schmale Stege 66 stehen. Insoweit wird eine minimale Beeinflussung der Strömungsverhältnisse gewährleistet.Fig. 3 shows a section along line A. 2, the one behind the plane of the drawing Part of the insert element with the external thread is not shown for the sake of simplicity. It there are a total of six radial bores 56, between which comparatively narrow webs 66 stand. In this respect, there is minimal influence on the Flow conditions guaranteed.

Schließlich zeigt Fig. 4 das Einsatzelement 4 in Blickrichtung B gemäß Fig. 2 auf die plane Oberfläche 34. Es sind drei zusätzliche Bohrungen 68 vorgesehen, welche eine direkte Verbindung aus der im Inneren des Einsatzelements 4 vorhandenen Sackbohrung in das Innere der Wanne bilden. Mittels diesen zusätzlichen Bohrungen wird eine verbesserte Regulierung der Menge des zugeführten Mediums, insbesondere Luft gewährleistet.Finally, FIG. 4 shows the insert element 4 in Direction B according to FIG. 2 on the flat surface 34. Three additional holes 68 are provided, which is a direct connection from the inside of the Insert element 4 existing blind hole in the Form the inside of the tub. By means of this additional Drilling will improve regulation of the Amount of medium supplied, especially air guaranteed.

Bezugszeichenreference numeral

22
Düsenkörpernozzle body
44
EinsatzelemenetEinsatzelemenet
66
Außengewinde von 2Male thread from 2
88th
Flanschflange
1010
WannenbodenWannenboden
1212
Höhe von 8,Height of 8,
1414
Innenfläche der WanneInner surface of the tub
1616
Oberflache von 8Surface of 8
1818
Kante von 20Edge of 20
2020
Austrittsöffnungoutlet opening
2222
Innenfläche von 2Inner surface of 2
2424
erster Öffnungswinkel von 22first opening angle of 22
2626
Durchgangsbohrung in 2Through hole in 2nd
2828
unteres Ende von 2lower end of 2
3030
Innengewinde von 2Internal thread from 2
3232
Außengewinde von 4Male thread from 4
3434
plane Oberfläche von 4flat surface of 4
3636
Außendurchmesser von 34Outside diameter of 34
3838
Innendurchmesser von 22Inner diameter of 22
4040
Außenflache von 4Outer surface of 4
4242
zweiter Öffnungswinkel von 32second opening angle of 32
4444
Ringspaltannular gap
4646
Pfeilarrow
4848
Längsachselongitudinal axis
5050
Sackbohrungblind hole
5252
Ende von 4End of 4
5454
Einstich, RingnutPuncture, ring groove
5656
Ausnehmung, radiale BohrungRecess, radial bore
5858
Außendurchmesser von 32Outside diameter of 32
6060
Wanddicke im Bereich von 32Wall thickness in the range of 32
6262
Dicke im Bereich von 54Thickness in the range of 54
6464
axiale Länge von 54axial length of 54
6666
Stegweb
6868
Bohrungdrilling

Claims (9)

  1. Nozzle for a tub (10), in particular a whirlpool tub, including a nozzle body (2) insertable into a cutout in the tub (10) and connectable thereto, and an insert element (4) which is screwable by an external thread (32) into an internal thread (30) of the nozzle body (2) and arranged to be axially moveable in the direction of the longitudinal axis (48) of the nozzle body (2) and further includes a blind hole (50) with radial apertures (56), the nozzle body (2) and the insert element (4) having mutually opposite surfaces (22, 40) between which an outlet opening (20) for a medium, in particular air, capable of flowing into the tub (10) is provided, and the gap width of the outlet opening (20) being variable by axial movement of the insert element (4),
    characterized in that an annular gap (44), the width of which decreases in the direction of the annular outlet opening (20), is present between the inner surface (22) of the nozzle body (2) and the substantially conical opposite outer surface (40) of the insert element (4),
    in that the inner surface (22), which is of a design which tapers from the outlet opening (20) inwards towards the longitudinal axis (48), adjoins the internal thread (30),
    in that the insert element (4) has at its outer side, in the region of the radial apertures, a recess (54) in which the said outer surface (40) of the insert element (4) ends, with the substantially conical outer surface (40) having an opening angle (42) which is between 60° and 120°,
    and in that the insert element (4) has, in the region of its upper surface (34) assigned to the interior space of the tub, a diameter (36) which is equal to or less than the diameter of the outlet edge (18) of the outlet opening (20).
  2. Nozzle according to Claim 1, characterized in that the internal thread (30) is arranged in a through hole (26) of the nozzle body (2), the through hole (26) being adjoined by the inner surface (22) opening into the interior of the tub.
  3. Nozzle according to Claim 1 or 2, characterized in that the thickness (62) of the insert element (4) in the region of the radial apertures (56) is substantially smaller than the wall thickness (60) in the region of the external thread (32) of the insert element (4).
  4. Nozzle according to Claim 3, characterized in that the thickness (62) in the region of the radial apertures (56) is less than half the wall thickness (60) in the region of the external thread (32).
  5. Nozzle according to one of Claims 1 to 4, characterized in that the recess (54) is designed as an annular groove.
  6. Nozzle according to one of Claims 1 to 5, characterized in that the inner surface (22) of the nozzle body (2) is of substantially conical design, to be precise with a first opening angle (24) which is preferably between 40° and 100°, expediently between 60° and 80°.
  7. Nozzle according to one of Claims 1 to 6, characterized in that the opening angle (42) of the outer surface (40) of the insert element (4) is between 80° and 100°.
  8. Nozzle according to one of Claims 1 to 7, characterized in that the in particular plane upper surface (34) of the insert element (4) lies substantially in the same radial plane as the outlet edge (18) of the outlet opening (20) and/or of the inner surface (22).
  9. Nozzle according to one of Claims 1 to 8, characterized in that the insert element (4) has through holes (68) which run from its upper surface (34), assigned to the interior space of the tub, as far as the said blind hole (50) and the diameter of which is substantially smaller than the diameter of the blind hole (50).
EP94108431A 1993-07-08 1994-06-01 Nozzle for a bathtub Expired - Lifetime EP0633012B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4322812A DE4322812C1 (en) 1993-07-08 1993-07-08 Nozzle for a tub
DE4322812 1993-07-08

Publications (3)

Publication Number Publication Date
EP0633012A1 EP0633012A1 (en) 1995-01-11
EP0633012B1 EP0633012B1 (en) 1999-12-01
EP0633012B2 true EP0633012B2 (en) 2003-07-09

Family

ID=6492294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94108431A Expired - Lifetime EP0633012B2 (en) 1993-07-08 1994-06-01 Nozzle for a bathtub

Country Status (4)

Country Link
EP (1) EP0633012B2 (en)
AT (1) ATE187060T1 (en)
DE (2) DE4322812C1 (en)
ES (1) ES2140478T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408518B (en) * 2000-03-28 2001-12-27 Koller Rudolf Massage nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB311161A (en) * 1928-08-31 1929-05-09 George Edward Kevin Blythe Improvements in or relating to liquid spraying nozzles
US2447123A (en) * 1944-08-09 1948-08-17 Jones Harry Sloper Therapeutic device
IT8422589V0 (en) * 1984-07-17 1984-07-17 Jacuzzi Europ PERFECTED JET FOR WHIRLPOOL.
DE8624247U1 (en) * 1986-09-10 1987-05-21 Schuessler, Guenter, 6074 Roedermark Hydro massage jet
DE8631764U1 (en) * 1986-11-27 1987-06-25 Ucosan B.V., Roden Outlet nozzle for the outlet valve of a whirlpool tub
DE3720637C1 (en) * 1987-03-12 1988-06-01 Kaldewei Franz Gmbh & Co Nozzle for installation in a borehole in a bath tub
DE8901137U1 (en) * 1989-02-02 1989-03-16 Fa. Franz Viegener Ii, 5952 Attendorn Air jet for a whirlpool tub
DE9214298U1 (en) * 1992-10-22 1992-12-17 Bönisch, Josef, 8450 Amberg Sanitary air bubble nozzle in extremely flat design for air pool and whirlpool (bathtubs)

Also Published As

Publication number Publication date
ATE187060T1 (en) 1999-12-15
EP0633012A1 (en) 1995-01-11
ES2140478T3 (en) 2000-03-01
DE59408958D1 (en) 2000-01-05
DE4322812C1 (en) 1994-09-01
EP0633012B1 (en) 1999-12-01

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