EP4101546B1 - Topfförmige brausestrahlaustrittsdüse und brause - Google Patents

Topfförmige brausestrahlaustrittsdüse und brause Download PDF

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Publication number
EP4101546B1
EP4101546B1 EP22175482.3A EP22175482A EP4101546B1 EP 4101546 B1 EP4101546 B1 EP 4101546B1 EP 22175482 A EP22175482 A EP 22175482A EP 4101546 B1 EP4101546 B1 EP 4101546B1
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EP
European Patent Office
Prior art keywords
jet outlet
shower
jet
weakening
outlet opening
Prior art date
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Application number
EP22175482.3A
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German (de)
English (en)
French (fr)
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EP4101546A1 (de
Inventor
Marcel Bilger
Ulrich Kinle
Markus WÖHRLE
Pascal Jonat
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Hansgrohe SE
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Hansgrohe SE
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Publication of EP4101546A1 publication Critical patent/EP4101546A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
    • B05B12/088—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve the sensing element being a flexible member, e.g. membrane, diaphragm, bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/528—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles by resilient deformation of the nozzle
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0404—Constructional or functional features of the spout
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed

Definitions

  • the invention relates to a cup-shaped shower jet outlet nozzle, which contains a hollow chamber, a side wall delimiting the hollow chamber transversely to a nozzle longitudinal axis and a bottom delimiting the hollow chamber in the direction of the nozzle longitudinal axis on the outlet side, which is formed from an elastic material and in which one of one or more Jet exit openings existing jet exit opening structure is formed with an open initial configuration, wherein the base is designed to deform elastically with its jet exit opening structure under the influence of an effervescent fluid operating pressure in the hollow chamber and thereby continuously increase an opening cross section of the jet outlet opening structure with effervescent fluid operating pressure increasing within a normal operating pressure range.
  • the invention further relates to a shower with one or more such shower jet outlet nozzles.
  • the jet outlet opening structure consisting of the jet outlet opening(s) has an open initial configuration, which means that even in the unpressurized initial situation in which there is no or at least no significant fluid pressure in the nozzle hollow chamber, the jet outlet opening structure is open, i.e. the passage of fluid enabling configuration.
  • the opening cross section of the jet outlet opening structure i.e. its effective passage cross section, which is relevant for the passage of shower fluid, is already greater than zero in the unpressurized initial state, in contrast to other types of nozzles that are closed in the unpressurized initial configuration and only open when fluid pressure is present.
  • shower fluid operating pressure is, as the name suggests, understood to mean the pressure of the shower fluid during operation of the shower jet outlet nozzle, which refers to refers to intended, normal operation of the nozzle and not to special situations such as overpressure situations in which the pressure of the shower fluid in the nozzle hollow chamber increases beyond a normal operating pressure range, for example due to blockages in the jet outlet opening structure.
  • the shower fluid operating pressure refers to the fluid pressure during normal shower operation of the nozzle that prevails in the hollow chamber of the nozzle, which is why it is also referred to as internal nozzle pressure or internal pressure for short.
  • the normal operating pressure range refers to the pressure range in which the fluid pressure lies during normal operation of the nozzle or can lie depending on the current operating environment.
  • the actual fluid operating pressure can depend on country- or region-specific specifications or conditions of an assigned fluid supply, such as a public water supply, but also on the design of the shower in question and its condition of use.
  • the supply pressure available on the building side is, for example, typically in a range from approximately 0.5 bar to approximately 1.5 bar
  • the shower fluid operating pressure in the nozzle hollow chamber, ie the internal nozzle pressure then in normal operation assumes values in the interval from 0 bar to approx. 0.4 bar, usually between approx. 0.2 bar and 0.4 bar.
  • a shower jet outlet nozzle of this generic type is in the published application US 2003/0062426 A1 disclosed.
  • the bottom is formed by, for example, three or four flap parts, which protrude radially inwards from the side wall at the nozzle outlet and define a single jet outlet opening of the nozzle between them.
  • the flap parts bend radially and axially, ie parallel to the longitudinal axis of the nozzle, in an elastically flexible manner outwards by a degree that depends on the level of the shower fluid operating pressure.
  • the jet outlet opening consists of a relatively small central opening and slot areas radiating from this radially outwards to the side wall, which keep adjacent flap parts separated from one another, ie the jet outlet opening has a star or cruciform basic shape.
  • the opening cross section of the jet outlet opening increases, whereby an automatic adjustment of the flow resistance of the nozzle to different fluid flow rates is to be achieved.
  • the jet exit opening qualitatively changes its cross-sectional shape into a more circular shape.
  • cylindrical nozzles without a bottom are proposed there, which can deform elastically and flexibly with their side wall under the acting fluid operating pressure, for which purpose the side wall is provided with axial slots.
  • cup-shaped shower jet outlet nozzle are formed in a base made of elastic material, which deforms in a curved manner under the action of the shower fluid operating pressure in the hollow chamber, several jet outlet openings in the form of fine jet openings are formed, and in addition to the base, the side wall is preferably also made of elastic material and configured in such a way, that, like the ground, it deforms in a curved manner depending on fluid pressure.
  • the intention with this nozzle configuration is to be able to produce a mist-like, fine shower jet while at the same time being relatively sensitive to the symptoms of clogging caused by dirt particles and limescale deposits.
  • the shower head disclosed are cup-shaped, cylindrical elastic jet formers, the bottom of which is provided with a single circular jet outlet opening of approximately 1.2 mm in diameter, inserted precisely into circular receiving openings of approximately 2 mm to 10 mm in diameter of a rigid jet disc.
  • the floor can bulge outwards, which is intended to allow lime deposits to flake off or detach automatically.
  • shower jet outlet nozzles are also known in a variety of designs, in which a side wall and possibly an optional base made of elastic material are designed to be deformed only by pressure exerted by the user, in particular in order to remove limescale deposits.
  • the nozzles and in particular their jet outlet opening should remain dimensionally stable under the shower fluid operating pressure acting during operation of the shower and therefore should not change deform to ensure a constant spray pattern of the emitted shower jet, for which purpose their side walls and their optional base are designed with appropriate pressure resistance.
  • WO 95/22407 A1 discloses such a cup ring-shaped shower jet outlet nozzle made of elastic material, whereby the possibility is also mentioned that a cup ring base of the nozzle bulges outwards due to the existing shower fluid operating pressure when it is curved inwards or is flat.
  • shower jet outlet nozzles are also known whose jet outlet opening structure is not formed with an open, but rather a closed initial configuration, that is, whose opening cross section in the unpressurized initial configuration is equal to zero, the jet outlet opening structure then only opening under the influence of the shower fluid operating pressure.
  • a shower jet outlet nozzle of this type is in the published application EP 1 700 636 A2 disclosed.
  • the respective jet outlet opening is formed or covered by an elastic closure membrane, which is provided with a slot pattern that is closed in the unpressurized state, through which the closure membrane can open in a deforming manner under the influence of fluid pressure.
  • This type of nozzle is typically used in sanitary showers to prevent the undesirable effect of dripping.
  • Another shower jet outlet nozzle of this type is in the published application DE 31 01 808 A1 disclosed
  • the invention is based on the technical problem of providing a shower jet outlet nozzle of the type mentioned, which is further improved compared to the above-mentioned prior art, in particular with regard to the shower jet characteristics that it can provide at different shower fluid operating pressures and preferably also with regard to the generation of a relatively fine shower jet, lower Tendency to calcify and acceptably low manufacturing effort. Furthermore, the invention aims to provide a corresponding shower head.
  • the invention solves this problem by providing a shower jet outlet nozzle with the features of claim 1 and a shower with the features of claim 15.
  • Advantageous developments of the invention are specified in the subclaims, the wording of which is hereby incorporated by reference into the description is made. This includes in particular all embodiments of the invention that result from the combinations of features that are defined by the references in the subclaims.
  • the jet outlet opening structure is spaced from the side wall, and the floor has a weakening pattern on an inside and / or on an outside with a smaller wall thickness compared to an adjacent area of the floor, the weakening pattern being designed for this , to deform elastically under the influence of the fluid operating pressure in the hollow chamber.
  • a desired jet type or a desired jet pattern of the shower jet in different normal operating situations in which different shower fluid operating pressures are present in the hollow chamber of the nozzle, for example due to different Water pressures in different water supply networks or due to short-term fluctuations in the supply water pressure or due to different shower fluid volume flows, as can be variably specified by the user, for example on an upstream shut-off valve, and the resulting changes in the shower fluid operating pressure in the nozzle hollow chamber.
  • the jet exit orifice structure is spaced from the sidewall of the nozzle, all associated jet exit orifices are located within an area of the floor spaced from the nozzle sidewall, thereby allowing The shape-stabilizing effect of the side wall can be transferred particularly well to the floor.
  • the weakening pattern in the soil enables a specific specification of the type and extent of elastically yielding deformation under the influence of fluid pressure.
  • the floor is more easily deformable in the area of the weakening pattern due to its smaller wall thickness than in the adjacent floor area with a larger wall thickness, so that the fluid pressure-dependent deformation of the floor can be specifically influenced and thus determined by a defined configuration of the weakening pattern in terms of shape and wall thickness.
  • the bottom can be formed, if necessary, by appropriate configuration of the weakening pattern in such a way that, on the one hand, as required, the opening cross section of the jet outlet opening structure increases steadily as the effervescent fluid operating pressure increases within the normal operating pressure range and, on the other hand, the cross-sectional shape of the jet outlet opening structure remains easily controllable as the effervescent fluid operating pressure changes within the normal operating pressure range , e.g. remains largely unchanged or undergoes a specified change in shape.
  • the nozzle has a significantly flatter characteristic curve for the increase in fluid pressure in the nozzle with increasing volume flow of shower fluid passing through the nozzle compared to conventional, rigid nozzles of a design that does not deform depending on fluid pressure and at the same time the cross-sectional shape of the Jet outlet opening structure can be maintained qualitatively depending on needs and application or can also be specified to be variable depending on fluid pressure for certain cases.
  • the weakening pattern can in particular contribute to achieving a desired high degree of stability in the dependence of the ground deformation and the resulting expansion of the respective jet outlet opening on the increase in the internal nozzle pressure, which avoids sudden changes in the cross-sectional shape and the opening cross-section of the jet outlet opening when the internal nozzle pressure changes.
  • the jet outlet opening structure of the shower jet outlet nozzle according to the invention has at least one jet outlet opening with an opening radius that alternately increases and decreases in the circumferential direction to form alternating bulge areas and indentation areas, the bulge areas each having a rounded shape with an associated minimum bulge curvature radius and the indentation areas each have a rounded shape with an associated minimum indentation curvature radius.
  • the minimum bulge curvature radii and the minimum indentation curvature radii are in the range between 0.01mm and 1mm.
  • the minimum bulge radii of curvature have a size ratio of between 0.3 and 2.5 to the minimum bulge radii of curvature. If the jet exit opening structure comprises a plurality of jet exit openings, all of these jet exit openings can have such a shape with bulge areas and indentation areas or only a part of them.
  • the jet outlet opening structure configured in this way enables the achievement of particularly advantageous shower jet characteristics. It turns out, among other things, that the alternating sequence of bulge areas and indentation areas and their respective sufficiently rounded shape with the specified minimum radii of curvature or with their size ratio that does not deviate too much from the value one, specifically between 0.3 and 2.5 lies, contributes to the advantageous shower jet characteristics of the jet outlet opening in question, whereby it is also shown that, through this configuration of the jet outlet opening, a desired, consistently favorable shower jet characteristic can be achieved over a wide range of possible shower fluid operating pressures and not just for a very specific shower fluid operating pressure or a narrow one Sub-range of the effervescent fluid operating pressure within a range of practically occurring, relevant effervescent fluid operating pressures.
  • an unpredictably, surprisingly advantageous jet characteristic can be impressed on the shower jet through the jet outlet opening with its rounded bulge and indentation areas and can also be largely maintained over the wide normal operating pressure range of possible fluid pressures and the resulting, differently expanded cross-sectional shapes of the jet outlet opening.
  • the shower jet emerging from this jet outlet opening is able to largely maintain its jet shape over a relatively long distance after leaving the jet outlet opening, without breaking up into individual jets or droplets after just a short distance.
  • the jet outlet opening structure of the shower jet outlet nozzle according to the invention has at least one jet outlet opening with a non-planar opening edge which runs in a wave shape with an axial direction component pointing in the fluid outlet direction and counter to the fluid outlet direction with respect to a plane of the base.
  • the fluid outlet direction is understood to mean the direction of the nozzle longitudinal axis pointing out of the nozzle, with the shower fluid leaving the nozzle with a directional component pointing in this fluid outlet direction, in most cases with a main directional component pointing in this direction, i.e. parallel to it or below one acute angle of less than 45° to this.
  • the jet exit opening structure comprises several jet exit openings, all of these jet exit openings can have such a non-planar opening edge or only a part of them.
  • this configuration of the jet outlet opening in question also contributes to providing both the desired constant increase in the opening cross section of the jet outlet opening and thus the jet outlet structure as a whole with the effervescent fluid operating pressure increasing within a normal operating pressure range in a favorable manner also to be able to provide a favorable shower jet characteristic for different shower fluid operating pressures within the normal operating pressure range, be it to the extent of keeping the cross-sectional shape of the jet outlet opening structure and a resulting shower jet characteristic largely constant over the normal operating pressure range or to be able to specifically change it in a desired manner, each achieved by a corresponding specific Design of the non-planar opening edge of the relevant jet outlet opening.
  • Each of these aspects of the invention also contributes to keeping the shower jet outlet nozzle's tendency to calcification low, in particular thanks to the fluid pressure-dependent variable elastic deformation of the nozzle base, which prevents limescale deposits and can automatically remove any limescale deposits, and to be able to generate a relatively fine shower jet if necessary, for which purpose respective jet exit opening can be configured with a correspondingly small opening cross section.
  • the shower jet outlet nozzle according to the invention can also be manufactured in each of the three aspects of the invention mentioned with comparatively little effort and is suitable, for example, for sanitary showers, such as shower sprays in the form of overhead, hand and side showers in shower rooms and for kitchen showers, such as those used in kitchen workstations become.
  • the shower jet outlet nozzle according to the invention can optimally adapt its jet generation behavior or its shower jet outlet characteristics to different fluid pressures, such as those that can occur in normal shower operation, for example different predetermined fluid pressures in different water supply networks of different countries or regions as well as operational fluctuations in the fluid pressure of a water supply or another fluid supply and any fluid pressure fluctuations in normal shower operation that can occur in an assigned shower itself.
  • the shower fluid operating pressure ie the internal pressure of the shower fluid in the nozzle hollow chamber and especially in the vicinity of the nozzle outlet, increases significantly less as the volume flow of shower fluid passed through the nozzle increases than with conventional shower jet outlet nozzles
  • the shower jet outlet nozzle according to the invention has a significantly flatter characteristic curve for the internal pressure as a function of the volume flow compared to these conventional nozzles.
  • the shower jet outlet nozzle according to the invention enables comparatively high volume flows of fluid passing through the nozzle while the internal fluid pressure in the nozzle hollow chamber remains comparatively low.
  • the shower jet outlet nozzle according to the invention therefore enables both relatively low and relatively high volume flows, preferably while largely maintaining the shower jet characteristics or the jet pattern of the shower jet emitted by it and without an undesirably strong increase in the fluid pressure in the nozzle hollow chamber.
  • the weakening pattern includes at least one weakening region in the ground, which extends away from an associated jet exit opening of the jet exit opening structure. If the weakening pattern includes several weakening areas, this feature is implemented in all of these weakening areas or only in part of them, as required.
  • the extension of the weakened area, in which the base deforms particularly easily, up to the jet outlet opening proves to be advantageous for many applications with regard to a desired widening deformation of the jet outlet opening with increasing shower fluid operating pressure in the nozzle hollow chamber.
  • the weakening area in the ground is a linear weakening area which, with a radial main direction component, runs in a straight line or is simply curved or is curved several times in the shape of a wavy line.
  • This measure proves to be beneficial for the further optimization of the soil deformation behavior for many applications.
  • the course of the linear weakening area in the radial direction with respect to the base or the jet outlet opening or in the predominantly radial direction contributes to a favorable deformation behavior in the sense of achieving a desired influence on the cross-sectional shape of the jet outlet opening, which expands with higher fluid pressure.
  • a straight line of the weakened area can also simplify production.
  • a single curved course or a wavy, multi-curved course enables, compared to a straight-line course, an even greater deformation of the floor and thus its jet outlet opening structure over a comparatively large range of possible shower jet fluid operating pressures.
  • the deformation of the floor in the area of the jet outlet opening can take place with an additional rotation component about the longitudinal axis of the jet outlet opening.
  • the weakening region can, for example, have a spiral shape with a radial minority direction component, i.e. it then extends radially with a smaller directional component and with a main directional component in a direction perpendicular to the radial direction.
  • the weakened area in the base extends to the side wall and merges there into a weakened area in the side wall.
  • the side wall can contribute to the deformation behavior of the floor, particularly in its area adjacent to the floor, if necessary, since the additional weakening area in the side wall means a certain weakening for the side wall and its shape-stabilizing effect on the floor.
  • the deformation of the floor can also have a supplementary effect Deformation of the side wall can be accompanied.
  • the side wall is implemented without a weakening area.
  • the weakening area in the floor is a linear weakening area which leads from one of the bulge areas or one of the indentation areas of the associated jet outlet opening.
  • This measure can advantageously help to specifically influence the cross-sectional shape of the jet outlet opening when expanding the jet outlet opening through increased deformation of the base as the shower fluid operating pressure increases, e.g. qualitatively maintaining a predetermined cross-sectional shape, and / or expanding the jet outlet opening with higher fluid pressure, especially in the area of its bulge areas or .to specifically influence or promote their indentation areas.
  • the weakening area does not lead away from bulge or indentation areas of the jet exit opening, for example in cases in which the jet exit opening does not have such bulge and indentation areas, or in cases in which the weakening area in a section of the jet exit opening outside of its bulge areas and indentation areas.
  • the base for the beam exit opening, from which the at least one weakening region extends away is formed to adjust the beam angle
  • the weakening region(s) extending away from the beam exit opening on the inside of the base in a beam angle-adjusting manner relative to a longitudinal center plane of the beam exit opening asymmetrical arrangement are formed and / or the floor is inclined on the inside at least in an area containing the beam outlet opening, adjusting the beam angle and / or the jet outlet opening is arranged off-center in the floor so as to adjust the beam angle.
  • the characterization that the base for the jet outlet opening is formed with a jet angle adjustment means in the present case that the base is formed in such a way that a jet angle adjustment results for the jet outlet opening, that is, when the nozzle is in operation, the shower jet emerges from this jet outlet opening a jet angle that is set with respect to the longitudinal axis of the nozzle, ie with this encloses an acute angle.
  • this acute angle or angle of attack for sanitary shower applications is, for example, in the range between 0° and 30°, usually between 0° and 20°, for example between 5° and 15°.
  • this beam angle adjustment is advantageously provided by the appropriate design of the base, in particular by a corresponding asymmetrical arrangement of its inner weakening area(s) and/or by a correspondingly inclined course of the inside of the base and/or by a corresponding off-center arrangement of the jet outlet opening.
  • These measures individually or in combination, contribute to the shower fluid entering the jet outlet opening on one side of the longitudinal center plane of the jet outlet opening with a higher flow speed and also a higher transverse component of the flow speed perpendicular to the longitudinal axis of the nozzle than on the other, opposite side, This results in the effect that the shower jet does not emerge from the jet outlet opening parallel to the longitudinal axis of the nozzle, but at the said angle of attack.
  • the weakened areas on the inside of the base can act as channels for the shower fluid, with their asymmetrical arrangement ensuring that the shower fluid has a higher flow speed on one side than on the opposite side with respect to the longitudinal center plane of the jet outlet opening.
  • the result is that the shower fluid does not emerge from the jet outlet opening parallel to this longitudinal center plane, but rather at an angle to this longitudinal center plane, i.e. at the said angle of attack to the longitudinal axis of the nozzle.
  • the same or a similar effect can be achieved by the inclined formation of the inside of the floor or by the off-center arrangement of the jet outlet opening in the floor.
  • the angle of attack for the shower jet remains largely constant to an extent that is not expected when the shower fluid operating pressure changes and the resulting deformation of the floor and expansion or narrowing of the jet outlet opening occurs.
  • the desired angle of attack remains essentially unchanged both for operating states with relatively small volume flows of fluid passing through the nozzle and for operating states with relatively high volume flows.
  • the nozzle is realized with its base without such a jet angle adjustment, ie in this case the shower jet emerges from the nozzle with the main jet direction parallel to the longitudinal axis of the nozzle.
  • the asymmetrical arrangement of the weakening area(s) extending away from the jet outlet opening on the inside of the base comprises two line-shaped weakening areas of different lengths and/or different widths which are opposite relative to the longitudinal center plane or one which extends away from the jet outlet opening Weakened area on the inside of the floor, which is opposite an unweakened floor area with respect to the longitudinal center plane of the jet outlet opening.
  • the weakening pattern includes at least one weakening area on the inside and on the outside of the floor, the at least one weakening area on the inside being arranged offset in the circumferential direction of the floor relative to the at least one weakening area on the outside.
  • the weakened areas on both sides are offset from one another in the floor circumferential direction, they do not interfere with each other and can therefore be made into the floor as recesses, for example, which have a depth of approximately half the wall thickness of the floor or more.
  • the formation of the weakened areas on both sides of the bottom requires less deformation to achieve a desired level at a given fluid pressure Wall weakening of the soil compared to formation of the weakening pattern only on the inside or only on the outside of the soil. In alternative embodiments where this is sufficient and appropriate, the weakening pattern is formed only on the inside or only on the outside of the floor.
  • the jet exit opening structure has a jet exit opening with a rounded polygonal cross-sectional basic shape, the bulge areas forming rounded corner areas of the polygonal cross-sectional basic shape. If the jet exit opening structure comprises several jet exit openings, all of these jet exit openings can have such a basic cross-sectional shape or only a part of them. It turns out that this choice of the basic cross-sectional shape for the respective jet outlet opening leads to an optimal jet characteristic of the shower jet emerging from the jet outlet opening under the different shower fluid operating pressures within the normal operating pressure range for most applications, especially in sanitary showers. This can in particular be a square or triangular cross-sectional basic shape and for some applications also a polygonal cross-sectional basic shape with more than four rounded corner areas or bulge areas, for example one with five or six rounded corner areas.
  • the jet exit opening structure has a jet exit opening with an equivalent exit diameter in the range of 0.2mm to 1.2mm.
  • the jet exit opening is formed with an opening cross section which corresponds to the opening cross section of a fictitious circular jet exit opening with an opening diameter between 0.2mm and 1.2mm. It is therefore a jet outlet opening with a relatively small opening cross section compared to jet outlet openings of conventional sanitary showers.
  • Such jet outlet openings produce a correspondingly fine shower jet, which is therefore also referred to by those skilled in the art as a needle jet or fine jet.
  • each jet exit opening has an equivalent exit diameter of more than 1.2mm or even less than 0.2mm.
  • a wall thickness of the floor outside the weakening pattern is in the range from 0.1mm to 1mm. This thickness dimensioning of the base proves to be advantageous for most applications, especially in sanitary showers, in terms of sufficient pressure stability of the base on the one hand and its desired fluid pressure-dependent deformability on the other. In alternative embodiments, the thickness of the bottom wall outside the weakening pattern is less than 0.1mm or more than 1mm for special applications.
  • a minimum wall thickness of the floor in the area of the weakening pattern is between a fifth and half of a wall thickness of the floor outside the weakening pattern.
  • the jet exit opening structure has a jet exit opening with a funnel-like, quarter-circle-shaped entry area which has an entry curvature radius between 0.1mm and 0.3mm. If the jet exit opening structure comprises several jet exit openings, all of these jet exit openings can have such an entry area or only a part of them.
  • This configuration and dimensioning of the entry area of the jet outlet opening proves to be advantageous with regard to the jet characteristics of the shower jet emitted by the jet outlet opening.
  • the shower jet emerging from this jet outlet opening proves to be comparatively stable, that is, it largely maintains its jet shape over a relatively long path after leaving the jet outlet opening, without, for example, fraying into several individual jets or breaking up into droplets.
  • the entry curvature radius mentioned is selected to be smaller than 0.1mm or larger than 0.3mm if the associated jet characteristics for the shower jet are acceptable for the given application.
  • a hollow chamber inner diameter is in the range of 1.5mm to 4mm. This dimensioning measure for the nozzle proves to be advantageous for many applications, especially in sanitary showers, with regard to the shower jet it enables.
  • the hollow chamber inner diameter of the nozzle can also be selected to be smaller than 1.5mm or larger than 4mm for certain applications.
  • the hollow chamber length of the nozzle is in the range from 4mm to 8mm. This also represents a dimensioning measure for the nozzle, which proves to be advantageous for numerous applications, particularly in sanitary showers.
  • the hollow chamber length can also be chosen to be smaller than 4mm or larger than 8mm if this appears appropriate for special applications.
  • the wall thickness of the side wall is at least 0.8 mm.
  • This dimensioning measure for the side wall results in the desired sufficient stability of the side wall, which in the shower jet outlet nozzle according to the invention primarily functions as a floor-stabilizing element and, in contrast to the floor, should not deform, or at least not deform significantly, under the fluid operating pressures that occur during normal operation. It is understood that in cases in which the side wall also has a weakened area or a weakening pattern, this wall thickness information refers to the wall thickness of the side wall outside the weakened area. In alternative versions, for certain applications it can be provided that the side wall is designed with a wall thickness of less than 0.8mm.
  • the jet exit opening structure contains a plurality of jet exit openings
  • the floor has a stiffening web pattern with a greater wall thickness than an adjacent region of the floor, the stiffening web pattern dividing the floor into a plurality of floor subregions, in each of which at least one of the jet exit openings is arranged, or extends with a stiffening web end up to a respective one of the jet outlet openings.
  • the stiffening web pattern divides the floor into subareas, in which one or more of the jet outlet openings are located.
  • the base can be deformed accordingly depending on the shower fluid operating pressure in order to bring about the desired change in the opening cross section of the one or more jet outlet openings there, while the stiffening web pattern contributes to providing the base with sufficient rigidity and thus pressure stability overall despite the deformability of its subareas to lend.
  • one web of the stiffening web pattern extends to one of the jet outlet openings.
  • the stiffening web pattern contributes to giving the floor, which deforms under the shower fluid operating pressure and is provided with several jet outlet openings, sufficient inherent stability.
  • the stiffening web pattern is omitted, especially in cases in which the floor only has a single jet exit opening or, despite several jet exit openings made therein and any associated weakening areas, has sufficient inherent stability even without such a stiffening web pattern.
  • the shower according to the invention has one or more shower jet outlet nozzles according to the invention.
  • This shower can in particular be a sanitary head, hand or side shower of a shower device or a kitchen shower at a kitchen workstation. Alternatively, it can also be a non-sanitary shower head, e.g. in chemical plant engineering for the detectable addition of liquid or gaseous media.
  • the shower preferably contains a plurality of shower jet outlet nozzles, which are further preferably all realized by a shower jet outlet nozzle according to the invention
  • the pot-shaped shower jet outlet nozzle comprises a hollow chamber 1, a side wall 2 delimiting the hollow chamber 1 transversely to a nozzle longitudinal axis D L and a floor 3 delimiting the hollow chamber 1 in the direction of the nozzle longitudinal axis D L on the outlet side.
  • the floor 3 is off an elastic material, preferably an elastomeric material, as is known to those skilled in the art for use in shower jet outlet nozzles.
  • the elastomer material can be an elastic silicone material, for example with a Shore A hardness between 20 and 70.
  • a jet outlet opening structure 4s is formed in the base 3, which consists of one or more jet outlet openings 4 and has an open initial configuration, that is to say at least one of the jet outlet openings 4 is already open in the unpressurized initial state, which means that it is available for the passage of shower fluid Opening cross-section, ie its open cross-sectional area, is greater than zero even in the unpressurized initial state.
  • the bottom 3 is designed to deform elastically and flexibly with its jet outlet opening structure 4s under the influence of an effervescent fluid operating pressure in the hollow chamber 1, ie an internal nozzle pressure, and thereby to continuously increase the opening cross section of the jet outlet opening structure 4s with increasing effervescent fluid operating pressure, at least for Values of the shower fluid operating pressure apply which lie within a predetermined normal operating pressure range, ie within a range in which the shower fluid operating pressure or nozzle internal pressure can lie during normal operation of the shower jet outlet nozzle.
  • This normal operating pressure range into an overpressure range which lies above this normal operating pressure range and into which the shower fluid operating pressure only reaches when abnormal overpressure operating states occur.
  • the jet exit opening structure 4s is spaced from the side wall 2, that is, its one or more jet exit openings 4 do not extend radially in the floor to the side wall 2, but maintain a certain radial distance d R from it, as shown in FIG Fig. 1 , 35, 36 and 38 marked, and the bottom 3 has a weakening pattern 5 with a weakening pattern 5 with a smaller wall thickness compared to an adjacent area of the bottom 3 on its inside 3 I facing the hollow chamber 1 and / or on its outside 3 A facing away from the hollow chamber 1.
  • the weakening pattern 5 is designed to deform in an elastically resilient manner under the influence of the effervescent fluid operating pressure in the hollow chamber 1.
  • 6 to 9 , 12 to 19 , 25 to 35 , 38 and 39 show exemplary embodiments in which the weakening pattern 5 is formed exclusively on the inside of the floor.
  • the 10 and 11 show an exemplary embodiment in which the weakening pattern 5 is formed exclusively on the outside of the floor.
  • the Fig. 40 to 42 show an exemplary embodiment in which the weakening pattern 5 is formed on both the inside and outside of the bottom.
  • the single or at least one of the multiple jet exit openings 4 of the jet exit opening structure 4s has an opening radius Ro that alternately increases and decreases in the circumferential direction to form alternating bulge areas 6 and indentation areas 7.
  • the bulge areas 6 each have a rounded shape with an associated minimum bulge curvature radius K A
  • the indentation areas 7 each have a rounded shape with an associated minimum bulge curvature radius K E .
  • the minimum bulge curvature radii K A and the minimum indentation curvature radii K E are each in the range between 0.01mm and 1mm, and/or the minimum bulge curvature radii K A has a size ratio K A /K E between 0.3 and 2.5 to the minimum indentation curvature radii K E.
  • Various such embodiments are in the Fig. 1 to 39 shown, with the bulge areas 6 and the indentation areas 7 in the Fig. 2 , 4 , 7 , 17 , 21 , and 39 are marked representatively, in Fig. 4 The associated minimum radii of curvature K A , K E are also marked.
  • Fig. 1 to 39 shown, with the bulge areas 6 and the indentation areas 7 in the Fig. 2 , 4 , 7 , 17 , 21 , and 39 are marked representatively, in Fig. 4
  • the associated minimum radii of curvature K A , K E are also marked.
  • Fig. 1 to 39 show
  • the radius Ro of an opening edge 8 of the relevant jet exit opening 4 changes depending on the circumferential angle in this case continuously between a minimum value at the reversal point of the respective indentation area 7 and a maximum value at the reversal point of the respective bulge area 6 with a corresponding minimum radii of curvature K A , K E relatively uniform change gradient without sudden changes.
  • the only or at least one of the jet outlet openings 4 of the jet outlet opening structure 4s has a non-planar opening edge 8n, which is wave-shaped with an axial direction component pointing in the fluid outlet direction F A and opposite to the fluid outlet direction F A with respect to a plane Es of the base 3.
  • the fluid outlet direction F A is parallel to the nozzle longitudinal axis D L
  • the floor plane Es is perpendicular to the nozzle longitudinal axis D L .
  • the opening edge 8n bulges inwards into the hollow chamber 1 in the course of its circumferential circumference relative to the remaining area of the base 3, alternating with an axial direction component opposite to the fluid outlet direction F A , and outwards away from the hollow chamber 1 with an axial direction component pointing in the fluid outlet direction F A.
  • the weakening pattern 5 comprises at least one weakening region 5 1 in the base 3, which extends away from an associated beam exit opening 4 of the beam exit opening structure 4s.
  • Corresponding exemplary embodiments are in the Fig. 6 to 19 , 25 to 35 as well as 45 to 48 shown. Extending away from the respective jet outlet opening 4 are the variants of Fig. 6 to 9 , 12 to 17 and 28 to 35 four weakening areas 5 1 to 5 4 on the inside of the bottom, in the variant of 10 and 11 four weakening areas 5 1 to 5 4 on the outside of the floor, in the variant of 18 and 19 five Weakening areas 5 1 to 5 5 on the inside of the bottom, in the variant of Fig. 25 and 26 a single weakening area 5 1 on the inside of the bottom and in the variant of Fig. 27 and 45 to 48 assigned to three weakening areas 5 1 to 5 3 on the inside of the floor.
  • the at least one weakening region 5 1 in the base 3 is a linear weakening region which runs in a straight line or in a single curve or in a wave-like manner with multiple curves with a radial main direction component, ie with a larger directional component in the radial direction of the nozzle than tangential thereto.
  • the Fig. 6 to 13 , 25 to 35 and 38 to 42 show exemplary embodiments in which the respective weakening area runs in a straight line, whereby in the exemplary embodiment it is 12 and 13 has a shape that widens radially outwards in the circumferential direction, while in the other exemplary embodiments the width of the respective weakened region remains essentially constant along its longitudinal extent.
  • the Fig. 14 and 15 show an exemplary embodiment in which the respective linear weakening area is simply curved.
  • the Fig. 16 to 19 show two exemplary embodiments in which the respective linear weakening area is curved several times in a wavy line.
  • the at least one weakening area 5 1 in the base 3 extends to the side wall 2 and there merges into a weakening area 9 in the side wall 2.
  • the Fig. 8, 9 and 40 to 42 show such exemplary embodiments, in the example of 8 and 9 the weakening area 9 extends axially along the entire longitudinal extent of the side wall 2 on the inside, while in the example Fig. 40 to 42 the weakening area 9 only extends over a relatively short length adjacent to the bottom 3 in the axial direction on the inside of the side wall 2.
  • the at least one weakening region 5 1 in the base 3 is a linear weakening region which leads from one of the bulge regions 6 or one of the indentation regions 7 of the associated jet exit opening 4.
  • the Fig. 6 to 11 , 14 to 17 , 25 to 35 , 38 and 39 show exemplary embodiments in which the weakened areas all lead away from one of the bulge areas 6. In the exemplary embodiment of 12 and 13 The weakened areas all lead from one of the indentation areas 7. Both Embodiments of the Fig. 18, 19 and 28 There is no fixed assignment of the weakening areas to the bulge or indentation areas 6, 7.
  • the bottom 3 for the beam exit opening 4, from which the at least one weakening region 5 1 extends away is formed to adjust the beam angle.
  • the weakening region(s) 5 1 extending away from the beam exit opening 4 are formed on the inside 3 I of the base 3 in an arrangement which is asymmetrical in relation to a longitudinal center plane L M of the beam exit opening.
  • Corresponding exemplary embodiments are in the Fig. 25 to 33 shown.
  • the floor 3 is inclined on the inside to adjust the beam angle, at least in an area containing the beam exit opening 4.
  • a relevant exemplary embodiment is in the 30 and 31 illustrated.
  • the jet exit opening 4 is arranged off-center in the base 3 so as to adjust the beam angle.
  • a relevant exemplary embodiment is in Fig. 29 illustrated.
  • the asymmetrical arrangement of the weakening area(s) extending away from the jet outlet opening 4 on the inside 31 of the base 3 includes two line-shaped weakening areas 51a , 51b of different lengths and/or different ones with respect to the longitudinal center plane L M of the jet outlet opening 4 Width or at least one weakening region 5 1c extending away from the jet outlet opening 4 on the inside 3 I of the base 3, which is opposite an unweakened base region 3 u with respect to the longitudinal center plane L M of the beam outlet opening 4.
  • the two opposing weakening areas 5 1a , 5 1b have different widths, namely the weakening area 5 1a has a width B 5 and the weakening area 5 1b has a width In contrast, smaller width b 5 .
  • the two opposing weakening regions 5 1a , 5 1b have different lengths, namely the weakening region 5 1a has a length L 5 and the weakening region 5 1b has a smaller length l 5 .
  • the weakening pattern 5 includes at least one weakening area 5 1d , 5 1e on the inside 3 I and on the outside 3 A of the bottom 3, with the at least one weakening area 5 1d on the inside 3 I opposite the at least one weakening area 5 1e on the outside 3 A is arranged offset in the circumferential direction of the base 3.
  • a corresponding exemplary embodiment is in the Fig. 40 to 42 illustrated, with four linear, straight-line weakening areas 51d offset by 90° from each other on the inside of the bottom 31 and four linear, straight-line weakening areas 51e offset by 45° from each other on the outside of the bottom 3A .
  • the weakening areas 5 1e on the outside of the floor extend radially in the area between two adjacent jet outlet openings 4, while the weakening areas 5 1d on the inside of the floor extend radially from the center area of the floor to one of the jet outlet openings 4.
  • only two or three or more than four linear, rectilinear or curved weakening areas can be provided on the outside and inside of the bottom, preferably with equidistant circumferential distances and preferably centrally offset from one another in the circumferential direction.
  • the single or at least one of the multiple beam exit openings 4 of the beam exit opening structure 4s has a rounded polygonal basic cross-sectional shape, the rounded corner areas of which are formed by the bulge areas 6.
  • the Fig. 1 to 21 and 25 to 37 illustrate relevant exemplary embodiments with a square, ie cross-like, basic cross-sectional shape, while the 38 and 39 show an exemplary embodiment with a basic triangular cross-sectional shape of the jet outlet openings 4.
  • the single or at least one of the multiple beam exit openings 4 of the beam exit opening structure 4s has an equivalent exit diameter in the range from 0.2mm to 1.2mm, as is the case in the exemplary embodiments shown.
  • the relevant jet outlet opening 4 in its unpressurized initial state has a free passage cross section for the shower fluid, which is the same size as that of a fictitious circular jet outlet opening with a diameter in the specified range, ie between 0.2mm and 1.2mm.
  • the jet outlet opening 4 is suitable, for example, for providing a fine/needle jet as a shower jet.
  • a representative in Fig. 26 marked minimum wall thickness W M of the floor 3 in the area of the weakening pattern 5 between a fifth and half of the wall thickness W B of the floor 3 outside the weakening pattern 5. This proves to be an optimal coordination of the weakened and unweakened areas of the floor 3 for many applications on the desired fluid pressure-dependent deformability of the base 3 for the purpose of increasing the opening cross section of the respective jet outlet opening 4 with increasing fluid pressure.
  • the single or at least one of the multiple beam exit openings 4 of the beam exit opening structure 4s has a funnel-like, quarter-circle-shaped entry area 4 E , as shown in Fig. 5 is marked and is preferably provided in all examples shown.
  • This entry area 4 E also has an in Fig. 5 marked entry curvature radius E R between 0.1mm and 0.3mm. It turns out that this measure supports a low-turbulence inflow of the shower fluid from the hollow chamber 1 into the jet outlet opening 4, which helps to stabilize the shower jet emerging from the jet outlet opening 4 in its jet shape.
  • Fig. 3 representatively marked axial length H L of the hollow chamber 1, as in the examples shown, in the range from 4mm to 8mm.
  • the hollow chamber length H L which is usually significantly larger than the hollow chamber inner diameter H D , can promote a desired channeling of the shower fluid entering the nozzle before it passes through the one or more jet outlet openings 4 to the outside.
  • a representative in Fig. 3 Marked wall thickness Ws of the side wall 2 of the nozzle outside the weakening pattern 5 is at least 0.8mm.
  • this dimensioning of the side wall 2 is coordinated with the other dimensions of the nozzle in such a way that under the influence of the shower fluid operating pressure, as long as it remains within the normal operating pressure range, essentially only the base 3 deforms in an elastically flexible manner, while the side wall 2 deforms at these pressure values Shower fluid operating pressure in the hollow chamber 1 is not noticeably deformed, ie remains essentially rigid.
  • the jet exit opening structure ( 4S ) contains a plurality of jet exit openings 4, and the floor 3 has a stiffening web pattern 10 with a wall thickness that is larger than an adjacent region of the floor 3, the stiffening web pattern 10 dividing the floor into a plurality of floor subregions, in each of which at least one of the jet exit openings 4 is arranged, or extends with a stiffening web end up to a respective one of the jet outlet openings 4. Examples of this type are in the Fig. 34 to 39 illustrated.
  • the stiffening web pattern 10 is formed in a star shape with three radial webs through which the base 3 is divided into three base portions 3 1 , 3 2 , 3 3 , in each of which one of the three cross-shaped jet outlet openings 4 is located. Each of these beam exit openings 4 is assigned the weakening pattern 5 with the four linear, rectilinear weakening areas 5 1 to 5 4 .
  • the stiffening web pattern 10 has a stabilizing effect on the floor 3 and limits the deformation of the floor 3 to a predeterminable, desired level.
  • the exemplary embodiment of the 38 and 39 corresponds to that of Fig.
  • the stiffening web pattern 10 has a cross shape made up of stiffening webs which are arranged in a central region of the base 3, with one of in this case four cross-shaped jet outlet openings 4 adjoining each web end.
  • the elastically deformable base 3 only has one, cross-shaped jet outlet opening 4 in the central area of the base 3.
  • the bottom-side weakening pattern 5 with the four bottom-inside, line-shaped, rectilinear weakening areas 5 1 to 5 4 is provided. This facilitates the deformation of the base 3 at a given shower fluid operating pressure or nozzle internal pressure in the hollow chamber 1.
  • Each of the four line-shaped, rectilinear weakening areas 5 1 to 5 4 on the inside of the bottom continues through the additional line-shaped, rectilinear weakening area 9 in the nozzle side wall 2, which extends over the entire hollow chamber length or side wall length.
  • the Weakened areas 9 in the side wall 2 can reduce the stabilizing effect of the side wall 2 on the floor 3 to a desired extent, which, if necessary, allows a greater deformation of the floor 3 at a given pressure.
  • the weakening pattern 5 is formed on the outside of the floor instead of on the inside of the floor.
  • the weakened areas 5 1 to 5 4 on the inside of the bottom open in a wedge shape into the indentation areas 7 instead of as in the exemplary embodiments Fig. 6 to 11 into the bulge areas 6.
  • the weakening areas 5 1 to 5 4 extend in a simple curved or bent manner. As a result, they have a greater length with the same radial extent, which can facilitate the deformation of the base 3 if necessary.
  • the line-shaped weakening areas 5 1 to 5 4 run in a wavy shape, whereby their length can be further increased with the same radial extension, which can further promote the deformation behavior of the floor 3.
  • 18 and 19 contains the weakening pattern 5 instead of the four weakening areas 5 1 to 5 4 extending from the bulge areas 6 of the example Fig. 16 and 17 the five wavy line-shaped weakening areas 5 1 to 5 5 , whereby the bottom 3 can be deformed even more easily if necessary.
  • the jet outlet opening 4 has an elongated, rounded cross shape with an in Fig. 21 a longer cross axis extending from left to right and an in Fig. 21 shorter cross axis extending from bottom to top, while in the other cross-shaped jet outlet openings 4 shown, the two cross axes are of the same length. If necessary, the jet shape of the shower jet emerging from the jet outlet opening 4 can thus be modified accordingly. In addition, the elongated cross shape facilitates the deformation of the floor 3 in this area.
  • the weakening pattern 5 is preferably formed asymmetrically to the mentioned longitudinal center axis L M of the nozzle, be it by asymmetrical distribution of the associated weakening areas, as in the examples of Fig. 25 to 28 or by different dimensions of corresponding weakening areas, as in the examples of 32 and 33 or by a diagonal course of the bottom 3 on its inside 3 I , as in the example 30 and 31 .
  • the oblique course is formed in the manner of an inclined plane, which in the view of Fig. 30 runs diagonally from top left to bottom right. It goes without saying that the measures mentioned can also be combined with one another in any way if necessary.
  • Fig. 26 is the effect of the beam angle adjustment for the example of Fig. 27 illustrated in more detail.
  • the line-shaped weakened area 5 1 or 5 1c can be seen to the left of the jet exit opening 4, which is opposite to the unweakened bottom area 3u on the right.
  • the linear weakening area 5 1 or 5 1c forms a channel-shaped recess on the inside of the bottom 3 I , with the result that the shower fluid under operating pressure along the linear weakening area 5 1c reaches the jet outlet opening 4 at a slightly higher flow speed than in the opposite, unweakened bottom area 3u. This is in Fig.
  • the angle of attack ⁇ can be selected in a relatively wide range, with an angle of attack in the range greater than 0° and less than approximately 20° to 30° usually being preferred, for example often an angle between 5° and 15°.
  • the angle of attack effect is not based on the fact that a weakened area is opposite an unweakened ground area, but rather that weakened areas of unequal strength lie opposite each other, which is the case in the example of 30 and 31 is additionally reinforced by the inclined position of the inside of the floor 3 I.
  • the exemplary embodiments of the Fig. 34 to 42 each have several jet outlet openings 4 in the floor 3, whereby it can be advantageous to provide the stiffening web pattern 10 for floor stabilization, as in the examples of Fig. 34 to 39 .
  • circular jet outlet openings 4 are used, whereby the floor is designed to be comparatively easily deformable, in that the weakening areas of the weakening pattern 5 mentioned are formed both on the outside of the floor and on the inside of the floor.
  • the 43 and 44 illustrate for one in the execution of the Figs. 6 and 7 manufactured nozzle according to the invention the advantageous bottom deformation behavior of the nozzle with considerable increase in the effective opening cross section of the jet outlet opening 4 with increasing shower fluid operating pressure, ie internal nozzle pressure in the hollow chamber 1.
  • Fig. 43 shows the nozzle in its unpressurized initial state with the rounded cross shape of the central jet outlet opening 4, as shown in the Figs. 6 and 7 can be recognized.
  • Fig. 44 shows the nozzle in the same view under an operating pressure load of approx. 1.0 bar, which is generally a pressure value slightly above the normal operating pressure range. It's easy to see how the ground is 3 has deformed to bulge outwards, as a result of which the opening cross section of the jet outlet opening 4 has increased sharply, for example to approximately five to six times its cross section in the unpressurized state Fig. 43 . Can be seen in Fig.
  • the Fig. 45 to 48 illustrate that the nozzle according to the invention further has the advantage that the bottom 3 deforms virtually fully symmetrically along the circumference of the jet outlet opening 4 both in the possible weakened areas and in the unweakened bottom areas.
  • This has the further advantageous effect that the deformation of the base 3, which increases with increasing fluid operating pressure, does not cause any significant change in the jet angle at which the shower jet leaves the jet outlet opening 4 and thus the nozzle, regardless of whether the shower jet exits parallel to the nozzle longitudinal axis D L or at an oblique angle or angle of attack to this.
  • FIG. 45 illustrates the operating situation in the unpressurized state or at very low fluid operating pressure, which does not result in any significant deformation of the base 3.
  • Fig. 46 shows the nozzle at slightly increased fluid pressure.
  • Fig. 45 It can be seen how the bottom 3 has already deformed slightly outwards. In this case, the bottom 3 has essentially bulged outwards to the same extent in the weakened area 51c on the one hand and in the unweakened bottom area 3u on the other hand at the edge of the jet outlet opening 4. This is also the case for the operating states with further increased fluid operating pressure in accordance with 47 and 48 to recognize.
  • Fig. 49 qualitatively illustrates the particularly advantageous behavior of the shower jet outlet nozzle according to the invention at different fluid operating pressures in a characteristic curve diagram of the shower fluid operating pressure, ie the shower fluid pressure prevailing inside the hollow chamber 1 of the nozzle, preferably in the vicinity of the respective jet outlet opening 4, during operation of the nozzle, depending on the volume flow, ie on the volume of shower fluid passing through the jet outlet opening structure 4s of the nozzle per unit of time.
  • a characteristic curve K1 shows the behavior of a conventional shower jet outlet nozzle which does not deform under the influence of the fluid operating pressure and which therefore does not have a noticeably widening deformation of its jet outlet opening structure as the volume flow increases.
  • the internal nozzle pressure which as mentioned is specifically the pressure immediately in front of the respective jet outlet opening, increases essentially squarely in this conventional nozzle, as can be seen from the course of the characteristic curve K1.
  • the internal nozzle pressure in the nozzle according to the invention increases significantly less as the volume flow increases; the associated pressure behavior depending on the volume flow is qualitatively determined by a characteristic curve K2 in Fig. 49 illustrated.
  • This favorable nozzle behavior is based on the property of the nozzle according to the invention that its base deforms with increasing shower fluid operating pressure and as a result the opening cross section of its jet outlet opening structure 4s increases significantly. This enables relatively high volume flows at relatively low internal nozzle pressure.
  • the nozzle according to the invention according to the characteristic curve K2, with appropriate design, enables volume flows of up to approximately 30 liters/min with an internal nozzle pressure of at most approximately 0.4 bar and preferably even only up to approximately 0.2 bar.
  • the nozzle according to the invention enables relatively high volume flows during operation even at relatively low shower fluid operating pressure or internal nozzle pressure.
  • the nozzle according to the invention enables relatively high volume flows even in the normal operating pressure range of up to approximately 0.4 bar or approximately 0.5 bar. This makes the nozzle according to the invention particularly suitable for flexible use in applications with different available Fluid operating pressures.
  • the nozzle according to the invention can thus be used in an identical design for different regions or countries that provide different levels of fluid supply pressures, whereas conventionally, specially adapted nozzles of different designs usually have to be used.
  • the shower according to the invention has at least one shower jet outlet nozzle according to the invention and can in particular be a sanitary shower.
  • Fig. 50 illustrates an example in which the shower is of a flat design known per se, such as is used for sanitary overhead showers.
  • the shower shown has a shower housing 11, which is pivotally held on an inlet connection 13 via a ball joint 12. On the outlet side, the shower housing 11 closes with a jet disk 14, which is provided with jet disk openings 15.
  • a cup-shaped shower jet outlet nozzle 16 according to the invention is arranged as a jet outlet element in each jet disk opening 15.
  • the shower jet outlet nozzles 16 according to the invention are integrally formed on a jet outlet plate 17, which is installed as a single component in the 51 and 52 is shown and with an in Fig. 52 shown front rests against a back or inside of the jet disk 14.
  • the jet exit plate 17 is made of an elastic material, such as a common silicone-based elastomer material, and is therefore also referred to as a jet exit mat.
  • the shower jet outlet nozzles 16 according to the invention are formed on the jet outlet plate 17.
  • Fig. 51 shows the jet outlet plate 17 with its back, from which the shower jet outlet nozzles 16 open out with their entry areas 18.
  • the shower jet outlet nozzles according to the invention are mounted as individual elements, for which purpose they have suitable foot areas.
  • the shower jet outlet nozzles are each formed with an optional foot area 19, as shown in FIG Fig. 1, 3 and 6 marked.
  • the invention provides a shower jet outlet nozzle which has particular advantages with regard to the shower jet characteristics that it can provide at different high shower fluid operating pressures and is preferably used Providing a relatively fine shower jet is suitable.
  • the arching deformation of the soil can reduce the formation of limescale deposits, and any limescale deposits that may have formed can be removed automatically.
  • the nozzle according to the invention is suitable for use in any sanitary and non-sanitary showers.

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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)
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US20220395843A1 (en) 2022-12-15
MX2022007003A (es) 2023-01-04
EP4101546A1 (de) 2022-12-14
JP2022189819A (ja) 2022-12-22
CA3160236A1 (en) 2022-12-10
JP7494250B2 (ja) 2024-06-03
ZA202205841B (en) 2023-03-29
DE102021205915A1 (de) 2022-12-15
ES2972950T3 (es) 2024-06-17
TW202302223A (zh) 2023-01-16
CN115463758A (zh) 2022-12-13
UA128107C2 (uk) 2024-04-03

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