WO2010122119A1 - Dispositif d'alimentation en eau à élément de distribution d'eau amélioré, et élément de distribution d'eau amélioré pour ledit dispositif - Google Patents

Dispositif d'alimentation en eau à élément de distribution d'eau amélioré, et élément de distribution d'eau amélioré pour ledit dispositif Download PDF

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Publication number
WO2010122119A1
WO2010122119A1 PCT/EP2010/055380 EP2010055380W WO2010122119A1 WO 2010122119 A1 WO2010122119 A1 WO 2010122119A1 EP 2010055380 W EP2010055380 W EP 2010055380W WO 2010122119 A1 WO2010122119 A1 WO 2010122119A1
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WO
WIPO (PCT)
Prior art keywords
water
supply device
distribution element
water supply
water distribution
Prior art date
Application number
PCT/EP2010/055380
Other languages
English (en)
Inventor
Mario Tonelli
Original Assignee
Flex.Doccia S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IT000705A external-priority patent/ITMI20090705A1/it
Priority claimed from IT001622A external-priority patent/ITMI20091622A1/it
Application filed by Flex.Doccia S.R.L. filed Critical Flex.Doccia S.R.L.
Publication of WO2010122119A1 publication Critical patent/WO2010122119A1/fr

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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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads
    • B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • 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

Definitions

  • the present invention relates to a water supply device with improved water distribution element, and to an improved water distribution element for said water supply device.
  • the water supply device which the present invention refers to is typically a shower head or a water tap, namely a device to control supply of water to showers, bathtubs and sinks.
  • a shower head is a water supply device that comprises an inlet for pressurized water and containment walls, on at least one of which water outlets are provided, so that the stream of pressurized water is forced to flow out of the device through such water outlets.
  • the water stream is thus distributed in the form of multiple jets over a wider area, which allows a user to get effectively and comfortably soaked.
  • shower heads are generally of the following type: shower heads of the type substantially fixed to a wall or the ceiling of the shower stall, usually provided with means to direct and/or adjust the stream of water; shower heads provided with a shower handle, which can be held and moved by the user, said shower handle being hydraulically connected to the water supply pipe fitting, for example via a flexible hose.
  • a shower head comprises a containment wall, or a portion of wall, provided with water outlets consisting of through holes having a cylindrical shape, so that the water is spread in the form of a plurality of even sprays or jets.
  • water taps for bathtubs and sinks comprising, in the end portion thereof, a water distribution element of the aerator type, capable of mixing water and air, thus reducing the amount of water supplied. This helps to save water and reduce splashes. Without an aerator, water flows out of the tap in one big stream. An aerator spreads the water flow into many small droplets.
  • water supply devices can have a fixed or a removable water distribution element.
  • the water distribution element is made en bloc with the remaining part of the water supply device and cannot be separated without breaking the device.
  • the water distribution element is formed in a single piece with the body of the water supply device, or is welded to the remaining part of the water supply device.
  • a particular type of fixed water distribution element is obtained by means of a wall comprising water outlets and fixed rigidly to the body of the water supply device;
  • water supply devices with removable water distribution element this latter is associated to the remaining part of the water supply device by fastening means such as screw means.
  • the water supply devices with removable water distribution element are normally such that it is possible to associate a certain class of removable water distribution elements with a complementary class of water supply devices.
  • EP 1 123 743 Al discloses a shower head comprising outlet holes which can be enlarged and reduced in accordance with changes in water pressure in the shower head. Whether in the enlarged or reduced size, such outlet holes (H) are always open. Moreover, they are in the reduced size when water is not delivered from the shower head.
  • DE 199 19 461 Al discloses a closable nozzle for fluid media which has an outlet opening and a closing element movable relative to each other against a spring force exerted by a membrane which can be biased in the opening direction.
  • the membrane can be formed by the housing wall or a part thereof.
  • the closing element is formed as a ball, cylinder, plate or cone.
  • the nozzle described in said patent document does not allow to distribute water in a plurality of sprays and requires the presence of a separate closing element.
  • DE 1 104 448 discloses a shower head with a filter element mounted against a helical spring.
  • US 4,869,431 discloses a nozzle for a hydraulic or pneumatic system having a hole calibrated to limit or regulate the delivery of the fluid flowing in the system.
  • the nozzle comprises a tongue suitable to be deflected towards the zone of the nozzle where there is low pressure.
  • the nozzle described in said patent document is not designed for use in a shower head and does not allow to distribute water in a plurality of sprays.
  • a drawback of known water supply devices is that when the supply of water is turned off the outlet holes remain wet, which facilitates the formation of scale in case of hard water. Scale forms gradually and tends to clog the outlet holes. Over the time this causes difficulties in the outflow of water and requires periodic cleaning of the holes and/or the need to replace the water supply device after a certain period of use.
  • a first object of the present invention is to provide a water supply device having a water distribution element in which the formation of scale is prevented or reduced to a minimum level.
  • Another object of the invention is to provide a water supply device in which water is supplied according to new and more comfortable spray patterns, in particular in the form of multiple laminar streams and/or cascade sprays, capable of giving the user an enhanced feeling of comfort in contact with the water.
  • a further object of the invention is to provide an improved water distribution element capable of preventing or reducing the formation of scale and/or providing new and more comfortable water spray patterns, which can be removably mounted to a water supply device.
  • a water supply device comprising containment walls and a water distribution element comprising a sheet provided with water outlets, characterized in that said water outlets comprise a plurality of flexible tongues, each of said tongues being defined by a cut in said sheet and being capable to be elastically deflected under the effect of the water pressure operatively acting on said sheet.
  • the invention relates also to an improved water distribution element for a water supply device, said distribution element comprising a sheet provided with water outlets, characterized in that said water outlets comprise a plurality of flexible tongues, each of said tongues being defined by a cut in said sheet and being capable to be elastically deflected under the effect of the water pressure operatively acting on said sheet.
  • all the water outlets of said water distribution element are formed by tongues defined by a cut in said sheet.
  • the water outlets are normally closed when the water supply device is in the closed state.
  • the water outlets are opened when the water supply device is in the open state in which a flow of pressurized water acts on the tongues provided in said sheet and causes the tongues to deflect.
  • the tongues close again, under the effect of elasticity, when the water pressure is no longer sufficient to hold them in the deflected state. In this way, water does not stagnate in correspondence of the water outlets.
  • the number, the shape and the position of the tongues in the water distribution element influence the spray pattern of the outflowing water.
  • the tongues Preferably, the tongues have a narrowed tip or end. More preferably, the tongues have a rounded tip. A "bevelled triangle" configuration of the tongues is particularly preferred.
  • the water supply device with improved water distribution element is a shower head.
  • the shower head has water containment walls and the water distribution element is preferably a containment wall of said water supply device.
  • the tongues have a narrow and rounded tip.
  • the containment walls define a containment chamber capable of being elastically deformed under the water pressure between a rest position in which the containment chamber has a very small volume, or substantially a zero volume, and an operating position, in which the containment chamber has a volume which is greater than in the rest position due to the presence of water.
  • a substantially zero volume of the containment chamber when there is no flow of water minimizes the amount of residues of water in proximity of the water outlets, thereby further reducing the formation of scale in proximity of the water outlets.
  • the containment walls comprise an upper wall and a lower wall which, once installed, is under the upper wall. Therefore, according to a feature of the present invention, the upper and lower containment walls are essentially superimposed and mutually adjacent in the rest position.
  • the water distribution element according to the invention is the sheet with water outlets forming the lower wall.
  • the containment chamber has a very small volume or a substantially zero volume, so as to prevent scale formation.
  • the volume of the chamber increases by elastic deformation of the walls and the pressurized water flowing into the containment chamber thus exerts the force required to deflect the tongues and open the water outlets.
  • the water pressure referred to in the present description is normally the supply pressure of water in a water source fed from an aqueduct, or the supply pressure from a water pressure tank of a building or similar, as is known in the art.
  • the containment walls have edges which are mutually fixed and watertight.
  • this allows passage from rest position to operating position, as the sealed edges delimit the containment chamber and thus allow the increase in volume required to allow passage from the rest position to the operating position.
  • the containment walls are made of steel, preferably they are made from a flexible sheet of steel and are disc shaped.
  • the containment walls on the one hand have the flexibility required to pass from the rest position to the operating position under the effect of pressurized water, and on the other hand they have the elasticity required to allow return to the rest position as soon as there is no longer any pressure; the tongues that provide the water outlets, defined in the sheet forming one of the containment walls, can be simply obtained by cutting the lower wall according to a pattern forming the elastically deflectable tongues.
  • the fact that the tongues are made of steel allows them to open under the effect of water pressure, and to close under the elastic effect of the material used; welding of the edges can be performed without requiring use of additional materials, but only use of the steel of which the walls are made.
  • the inlet to the containment chamber there is an articulated link, so that the user can direct the shower head in a desired direction.
  • the cross section surface of the water inlet is greater than the cross section surfaces of the water outlets. This ensures that there are no areas of vacuum pressure inside the containment chamber.
  • the method of obtaining the embodiment indicated is preferably as follows: providing a steel sheet to obtain the containment walls; obtaining the water distribution element by cutting a containment wall, preferably by laser cutting, so as to obtain the edges of the tongues forming the water outlets; welding the water inlet to the upper wall; mutual welding of the two containments walls, in particular along the edges of the containment walls.
  • Fig. 1 shows a top view of a shower head according to the present invention
  • Fig. 2 shows a side view of the shower head of Fig. 1;
  • Fig. 3 shows a bottom view of the shower head of Fig. 1;
  • Fig. 4 shows an exploded perspective view of the shower head of Fig. 1;
  • Fig. 5 shows a sectional view according to the line V-V of Fig. 3 when the shower head is in rest position
  • Fig. 6 shows a view like that of Fig. 5 but with the shower head in operating position.
  • Fig. 7 shows a top view of a water distribution element according to an embodiment of the present invention.
  • Fig. 8 shows a side view of the water distribution element of Fig 7;
  • Fig. 9 shows a bottom view of a part of a water supply device onto which a water distribution element according to the embodiment of Figs 7 and 8 can be mounted;
  • Fig. 10 shows a side view of the part of the device of Fig. 9;
  • Fig. 11 shows a top view of the part of the device of Fig. 9;
  • Fig. 12 shows an internal view of a component of the water supply device according to
  • Fig. 13 shows a side view of the component of Fig. 9;
  • Figure 14 shows another view of the component of Fig.9
  • Fig. 15 shows an external view of a part of a water supply device according to another embodiment of the present invention.
  • Fig. 16 shows a sectional view according to the line X-X of Fig. 15;
  • a shower head 10 for a shower is illustrated.
  • This shower head 10 has a water path between a water inlet 11 that allows inflow of water from an external water source, and water outlets 12, that allow the supply of water toward the outside.
  • the shower head 10 comprises a pair of containment walls 1, 2.
  • these containment walls 1 , 2 are essentially disc shaped.
  • each containment wall 1 , 2 is circular and has a sheet thickness selected to ensure suitable mechanical strength and flexibility.
  • the containment walls 1, 2 are made of metal, preferably steel. In a particularly preferred embodiment the containment walls are made of a stainless and mirror polished steel.
  • the containment walls 1, 2 are an upper wall 2 and a lower wall 1.
  • the water distribution element is the sheet forming the lower wall 1, which is provided with water outlets 12.
  • the upper wall 2 is positioned above the lower wall 1.
  • the containment walls 1, 2 have edges 17 mutually fixed, in the present case by welding, so as to ensure water-tightness and preventing leakage of water.
  • the containment walls 1, 2 define a containment chamber 13.
  • this containment chamber 13 is capable of being deformed under the water pressure between: a rest position, shown in Figs. 2 and 5, in which the containment chamber 13 has a substantially zero volume, the containment walls 1, 2 being superimposed and mutually adjacent, and an operating position, shown in Fig. 6, in which the containment chamber 13 has a volume which is greater than in the rest position due to the presence of water, the welding at the edges 17 being capable of preventing the outflow of water through such edges 17.
  • the water outlets 12 are defined by tongues 15 which are: closed, when the containment chamber 13 is in the rest position, open under the effect of water pressure inside the containment chamber 13, when this latter is in the operating position. In such latter position the pressurized water pushes the tongues 15 and forces them to deflect to an open position, so that water flows from the shower head 10; closed again, when the containment chamber 13 returns to the rest position due to a drop in the water pressure upon closure of the water line effected by the user.
  • the water pressure inside the containment chamber 13 acts against an elastic return force exerted by the tongues 15 in their deflected position. This ensures that the water outlets 12 close again upon closure of the water line. Consequently, water cannot stagnate in the area of the water outlets 12, and scale is thus prevented from forming on the water outlets 12.
  • each tongue 15 is formed by a relative cut 16 made on the lower wall 1.
  • each cut 16 defines two edge sides 15b with an interposed end or tip 15 a. This is particularly advantageous as it allows the elastic return force to be obtained without the use of further elastic means, but simply as an effect of the elastic properties of the steel of which the lower wall 1 is formed. It is noted that the elastic properties of steel are better than those of brass, which was used in prior art shower heads.
  • the tongues 15 have ends 15a which are narrowed.
  • the shape of the tongues described above allows to distribute the of water according to a new spray pattern, namely a pattern of laminar flow with a star-shaped cross-section. Such pattern is different from the pattern of traditional shower heads, which consists of linear and substantially parallel jets. It has also been seen that with the spray pattern generated by the water distribution element of the present invention the falling water tends to assume the form of a cascade spray, which gives a more pleasant and more natural feeling of contact with respect to the conventional parallel-jets pattern. Furthermore, it has also been seen that the water falls in a substantially uniform manner along the entire edge of each tongue 15. When the tongues 15 have tips or ends 15a which are rounded, it has been found that an increased uniformity of water distribution is achieved, as in this way the tongues 15 do not have sides that open preferentially.
  • the preferred solution is the one shown in particular in Fig. 3, in which the water outlets 12 are arranged in the following way: a first group of water outlets arranged to form an external circumference; this first group is preferably composed of six water outlets, with the ends 15a facing the axis of the shower head 10; a second group of water outlets, radially inside said first group; the second group consisting preferably of four water outlets, more preferably essentially arranged in a cross-like pattern, so that each water outlet with end 15a facing the axis of the shower head 10 is placed in the vicinity of two water outlets with ends 15a radially facing the edges 17.
  • containment walls 1, 2 of diameter greater than 200 mm, in particular 225 mm, containments walls 1, 2 and tongues with height h of around 1 mm. In this way, it was possible to supply water with a pressure below 5 bar.
  • the upper wall once installed, is fixed at the top to a lower connector 3 essentially cylindrical in shape and hollow and having a conical lower protuberance 3a for coupling in an axial cavity 2a provided in the upper wall 2, said coupling being adapted to be made permanent under the effect of welding 2b of watertight type.
  • the lower connector 3 is supported superiorly by an upper connector 5, also hollow, with interposing of an O-ring 4, made of rubber material.
  • the upper connector 5 is capable of being supported by an articulated link 7, also hollow, with a first substantially spherical portion 7a formed in once piece with a second substantially cylindrical portion 7b.
  • the articulated link-upper connector connection is such as to allow the upper connector 5 to rotate about its axis and also movement of the axis of the upper connector 5. In this way, the final user can direct the shower head according to a preferred direction.
  • the second portion 7b of the articulated link 7 is capable of being supported by a cylindrical and hollow cap 8, supported by water pipes and by external support means of known type, with interposing of a third O-ring.
  • the water inlet 11 is substantially obtained through said means 3-
  • the cross section surface of the water inlet 11 is greater than the cross section surfaces that are obtained by opening the water outlets 12. In this way, it is possible to obtain uniform water supply between all the water outlets 12 without creating a vacuum inside the containment chamber 13.
  • the substantially zero volume the containment chamber in the rest position ensures that no water is left in the chamber, thereby preventing scale from forming.
  • the fact that the ends 17 of the containment walls 1, 2 are welded allows, in a simple and inexpensive way, positioning of the containment chamber between the rest position and the operating position.
  • This characteristic combined with the elastic properties of the steel, allows passage from the rest position to the operating position under the effect of water pressure, and return to the rest position from the operating position by an elastic force that tends to return the containment walls 1, 2 to a mutually adjacent position.
  • Welding between the steel containment walls 1, 2 is performed by fusion of the same steel of which the containment walls 1 , 2 are composed and, advantageously, no additional material is therefore used.
  • the method of manufacturing the shower head according to the embodiment described is advantageously as follows: providing a steel tongue to make the containment walls 1, 2; laser cutting to obtain the edges 17 of the containment walls 1, 2 and of the cavity 2a; obtaining the tongues 15 in the containment wall 1 by laser cutting the edges 16 of the tongues 15 to form the water outlets 12; welding of the water inlet 11 to the upper wall 2; mutual welding of the two containment walls 1, 2.
  • the constructional parameters of the shower head according to the invention are, at least in principle, to be sized with reference to the water supply pressure. Therefore, the shower head is constructed according to parameters such that the elastic return force to which the water outlets are subjected is capable of allowing the water outlets to open and close again in relation to the expected water supply pressure. Nonetheless, it was surprisingly noted that the parameters of the present embodiment (thickness of containment walls and tongues of 1 mm, diameter of cylindrical containment walls of 225 mm and made of steel) have excellent functionality at the typical supply pressures of a domestic environment, in particular between 2.5 bar and 4.5 bar.
  • said water distribution element is removable.
  • the removable nature of the water distribution element therefore allows particularly advantageous replacement thereof.
  • the water supply device provides for fastening of the water distribution element so that said water distribution element is housed inside an inner surface of the remaining part of the water supply device, in particular of the body of the water supply device.
  • a ring locking means is provided for said water distribution element.
  • a ring locking means allows fastening of said water distribution element to be completed.
  • the ring has a cavity provided in correspondence of the water outlets.
  • the ring has a central hole for coupling with the water distribution element through a threaded means, such as a screw. It is noted that in this way, it is possible to use a minimum number of threaded means, using only one screw in central position.
  • the ring has an external region, in particular in the shape of an annulus, to reinforce the water supply device.
  • Such external annulus is placed in correspondence of the contact region between the water distribution element and the remaining part of the water supply device, where water infiltrations could occur. This achieves the twofold result of locking the water distribution element and of reinforcing and sealing, through a single component. It has been seen that the presence of said ring is capable of making the water supply device watertight, preventing any accidental leakage of water from the contact region between the water distribution element and the remaining part of the water supply device.
  • gasket in particular of the O-ring type is also particularly advantageous, above all if used together with a ring, in particular of one of the aforesaid types.
  • said shower handle can be held, moved and associated with a known fixed element, for example fixed to a wall.
  • the water supply device is a tap.
  • said tap is provided with a water distribution element according to the present invention.
  • a water distribution element for a water supply device comprising a sheet provided with water outlets, characterized in that said water outlets comprise a plurality of flexible tongues, each of said tongues being defined by a cut in said sheet and being capable to be elastically deflected under the effect of the water pressure operatively acting on said sheet.
  • all the water outlets of said water distribution element are formed by tongues defined by a cut in said sheet water outlets.
  • said water distribution element is of the removable type.
  • the water distribution element can be associated with a conventional water supply device by replacing the conventional water distribution element with the water distribution element according to the invention, provided that it is of the same size of the conventional water distribution element to be replaced.
  • the water distribution element according to the invention can be a component of a particular type of water supply device according to the present invention, or can be designed as separate product, which can be sold as replacement product capable of improving the performances of a conventional water supply device.
  • a water supply device with a fixed water distribution element i.e. obtained by a containment wall fixed rigidly to the remaining part of the water supply device, for example by welding the water distribution element to the body of the water supply device.
  • a water distribution element 101 comprises a sheet provided with water outlets 112.
  • Each of the water outlets 112 is defined by a tongue 115 made on said sheet.
  • Each tongue 115 can be elastically deflected because of the elastic properties of the material used, which is preferably steel.
  • the configuration of the tongues 115 is such that an external force acting on a tongue 115 in a direction perpendicular to the plane of Fig. 7 causes an elastic force that acts against this external force and tends to maintain the tongue 115 essentially adjacent to the remaining part of the water distribution element 101.
  • each tongue 115 is defined by a cut 116 made on the sheet forming the water distribution element 101.
  • each tongue 115 has a narrow end or tip 115a.
  • the shape of each tongue is almost triangular, with bevelled vertex 115a.
  • each tongue 115 has an end 115a which is rounded.
  • the water distribution element 101 is designed to be fixed removably to a water supply device.
  • the water distribution element 101 is of the wall-mounted type, so as to form a first containment wall of a water supply device of the present invention.
  • the water distribution element 101 is a flat element, more preferably a sheet.
  • the water distribution element 101 is essentially disc shaped.
  • Figures 9-11 show a part of a supply device 110 of the shower handle type.
  • This water supply device 110 comprises a water inlet 111 for inflow of pressurized water from an external water sources, for example through a flexible hose.
  • This water supply device 110 also comprises a first containment wall formed of the water distribution element 101.
  • the water distribution element 101 could also be replaced by another type of water distribution element.
  • the water supply device 110 comprises a body 150, preferably made of plastic material, in particular of the type with external chrome finish.
  • the body 150 advantageously comprises a handle portion 151 having the shape of a bent cylinder.
  • a pipe 153 extends inside said handle 151.
  • a second containment wall 102 is present.
  • the second containment wall 102 is essentially in the shape of a cap.
  • the second containment wall 102 is capable of forming a head portion 152, formed in one piece with said handle portion 151.
  • the water supply device 110 comprises a containment chamber 113 suitable to contain pressurized water.
  • the containment chamber 113 is defined by the actual containment wall 102 and is in fluid communication with pipe 153, so that water inflowing from a water source, through the water inlet 111 and through the pipe 153, enters the containment chamber 113.
  • the containment chamber 113 is closed by the first containment wall 101.
  • the water supply device 110 comprises an internal surface 154 capable of receiving the water distribution element 101, which can thus be inserted and, if necessary, subsequently removed.
  • gasket means for example of the O-ring type, are provided to prevent water from leaking in correspondence of the contact area between the first containment wall 101 and the second containment wall 102.
  • the water supply device 110 comprises a ring 155, which is capable of fixing the first containment wall 101 to the remaining part of the water supply device 110.
  • the ring 155 is advantageously made of metal material, in particular brass.
  • the ring 155 is preferably provided with an axial hole 156, preferably internally threaded, capable of receiving a screw (not shown) capable of also being received in an axial hole (not shown but positioned in the position indicated with 180) provided on the first containment wall 101 in a central position.
  • this screw is also inserted in a threaded hole 181, which, preferably, is placed in a projection 182, formed with three wings at 120°, said projection 182 projecting from said second containment wall 102: in this way, the water distribution element 101 is fixed to the remaining part of the water supply device 110.
  • this fixing is removable as, by unscrewing said screw, the containment wall 101 can be removed and if necessary replaced with another containment wall, for example a different type of water distribution element, for example a conventional water distribution element with cylindrical through holes.
  • the containment wall 101 according to the present invention can be replaced with a water distribution element according to the prior art, provided that it has the same size. This allows to achieve high levels of standardization, mainly because a conventional water supply device can be upgraded by applying onto it the water distribution element 101 as a replacement part.
  • the ring 155 has an annulus 157 formed in one piece with radial elements 158, which in the present case are the same in number as the water outlets 112, i.e. four. These radial elements 158 are adapted to be substantially superimposed on the diametrical axes 160, mutually perpendicular, of Fig. 7. This is one way in which to define hollow circular sectors 159, in the present case four in number, which allow the water outlets
  • fixing of the ring 155 to the remaining part of the water supply device 110, in particular to the body 150 is of the removable type, so as to allow removal of the ring 155 in a simple and quick way.
  • the presence of the annulus 157 allows the seal of the water supply device
  • the ring 155 covers both the functions of locking the water distribution element 101 and simultaneously of reinforcing and sealing.
  • the ring 155 covers both the functions of locking the water distribution element 101 and simultaneously of reinforcing and sealing.
  • the ring 155 covers both the functions of locking the water distribution element 101 and simultaneously of reinforcing and sealing.
  • 155 has an axial protuberance 190 in the form of solid of revolution obtained by rotating a trapezium.
  • the first containment wall 101 is mounted below the second containment wall 102, which acts as lateral containment wall for the water sprayed downwards, which thus takes the shape given by the water outlets 112. Therefore, the first containment wall 101, which has the water outlets 112, can be defined as lower containment wall and the second containment wall 102 can be defined as upper containment wall.
  • the containment walls 101, 102 are mutually fixed so as to be watertight and prevent the passage of water from any junctions between them.
  • the tongues 115 of the water outlets 112 are such as to be: closed, when the water pressure inside the shower handle 110 is not sufficient to allow opening of these tongues 115; open under the effect of water pressure inside the containment chamber 113, when the water pressure inside the shower handle 110 is such as to allow opening of these tongues 115: the pressurized water pushes against the tongues 115 until they open, so as to flow from the shower handle 110; closed again, when the water pressure inside the shower 110 is not sufficient to allow opening of the tongues 115, for example following a closing command imparted by the user, when he decides to turn off the supply of water.
  • the water pressure inside the containment chamber 113 acts against an elastic return force acting on the tongues 115, so that closing of the water outlets 112 is ensured. Consequently, in the closed position no water is left in the area of the water outlets 112, except possibly in very small quantities, and the formation of scale on these water outlets 112 is thus prevented.
  • each tongue 115 is defined by the presence of a cut 116 obtained on the first containment wall 101.
  • each cut is obtained by laser cutting, but other processes could be used.
  • the cut 116 defines two edge sides 115b with an end 115a interposed. This is particularly advantageous as it allows the elastic return force to be obtained without the use of further elastic means, but simply due to the elastic properties of the material, for example steel, of which the lower wall 101 is formed. It is noted that the elastic properties of steel are better than those of brass, which is used in prior art devices.
  • the tongues 115 have ends 115a which are narrowed.
  • the tongues 115 are spaced apart and the narrowed ends (115a) of the tongues are directed toward the centre of the water distribution element.
  • the tongues 115 have ends 115a which are rounded. In the tests performed, this led to increased uniformity of water distribution, as in this way the tongues 115 do not have sides that open preferentially, which instead occurs when the tips of the tongues are pointed.
  • a further embodiment of the same invention is a tap 210 represented partially in Figs. 15-16, in which a body 250 of said tap 210 is illustrated.
  • Figs. 7-8 show a water distribution element according to the present invention, suitable to be fixed to the body 250 of said tap 210.
  • the tap 210 comprises a water inlet 211 which receives inflowing water from a known mixing system, either of the cartridge type or with two headworks, of known type and therefore not illustrated.
  • the tap 210 comprises a first containment wall, which in the present case is the water distribution element 101, and a second containment wall, which in the present case is the body 250.
  • the present tap 210 is made of steel.
  • the tap 210 comprises water outlets which in the present case consist of the water outlets of the water distribution element 101. At least one of said water outlets 112 is defined by a tongue 115 capable to be opened under the effect of water pressure acting against an elastic return force acting on said tongue 115.
  • the first containment wall 101 can be defined as lower wall, while the second containment wall 205 can be defined as upper wall.
  • the present embodiment uses the same type of water distribution element 101, of the wall- mounted and removable type, it has the same characteristics as in the previous example, both with regard to the configuration of the water outlets 112 and with regard to operation of the water outlets 112.
  • the water distribution element 101 is in the present case locked by a ring type locking means, comprising a ring 255, which in the present case is of the ring shaped type, which is threaded externally and capable of being screwed to an internal wall of a projecting rim 251 of the body 250.
  • a ring type locking means comprising a ring 255, which in the present case is of the ring shaped type, which is threaded externally and capable of being screwed to an internal wall of a projecting rim 251 of the body 250.
  • the ring could be of the type according to the previous embodiment.
  • Operation of the tap 210 is, for the purposes of the present description, substantially the same as operation of the shower handle 110, in which the water outlets 112 are: closed, when the water pressure inside the tap 210 is not sufficient to allow opening of these tongues 115; open under the effect of water pressure inside the containment chamber 213, when the water pressure inside the tap 210 is such as to allow opening of these tongues 115: the pressurized water pushes against the tongues 215 until they open, so as to flow from the tap 210; closed again, when the water pressure inside the tap 210 is not sufficient to allow opening of the tongues 115, for example following a closing command imparted by the user, when he decides to turn off the supply of water.
  • the cross section surface of the water inlet is greater than the cross section surfaces generated by opening the water outlets. In this way, it is possible to obtain uniform water supply between all the water outlets. This feature applies to both the shower handle and the tap, as well as to other embodiments of the same invention.

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  • Nozzles (AREA)

Abstract

L'invention concerne un dispositif d'alimentation en eau (10; 110; 210), particulièrement une pomme de douche, une poignée de douche ou un robinet (110; 210), comprenant des parois de confinement (1, 2; 101, 102; 101, 250) et des sorties d'eau (12; 112) sur au moins une première paroi de confinement (1; 101). Les sorties d'eau (12; 112) sont définies par une languette (15; 115) capable de s'ouvrir élastiquement sous l'effet de la pression d'eau. L'invention concerne également un élément de distribution d'eau (1; 101) pour un dispositif d'alimentation en eau (10; 110; 210) comprenant des sorties d'eau définies par des languettes élastiquement déformables (115). L'élément de distribution d'eau (101) est du type amovible et peut être adapté à des dispositifs d'alimentation en eau traditionnels.
PCT/EP2010/055380 2009-04-24 2010-04-22 Dispositif d'alimentation en eau à élément de distribution d'eau amélioré, et élément de distribution d'eau amélioré pour ledit dispositif WO2010122119A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITMI2009A000705 2009-04-24
IT000705A ITMI20090705A1 (it) 2009-04-24 2009-04-24 Soffione per doccia o simile
ITMI2009A001622 2009-09-23
IT001622A ITMI20091622A1 (it) 2009-09-23 2009-09-23 Dispositivo di erogazione d acqua e relativo erogatore d acqua

Publications (1)

Publication Number Publication Date
WO2010122119A1 true WO2010122119A1 (fr) 2010-10-28

Family

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Application Number Title Priority Date Filing Date
PCT/EP2010/055380 WO2010122119A1 (fr) 2009-04-24 2010-04-22 Dispositif d'alimentation en eau à élément de distribution d'eau amélioré, et élément de distribution d'eau amélioré pour ledit dispositif

Country Status (1)

Country Link
WO (1) WO2010122119A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059182A (zh) * 2011-01-28 2011-05-18 常优军 淋浴头
ITMI20102109A1 (it) * 2010-11-15 2012-05-16 Garef Di Bacchetta Roger Dispositivo per erogazione di liquido
WO2016165744A1 (fr) * 2015-04-14 2016-10-20 Husqvarna Ab Appareil de pulvérisation et tête de pulvérisation pour un appareil de pulvérisation
CN108311302A (zh) * 2016-07-14 2018-07-24 泉州市汇辰产品设计有限公司 一种顶喷式防堵花洒

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH261778A (fr) * 1947-07-23 1949-05-31 Schneider Hans Dispositif pulvérisateur de liquide sous basse pression.
DE1104448B (de) 1959-03-13 1961-04-06 Hansa Metallwerke Ag Brausekopf
US4869431A (en) 1986-06-17 1989-09-26 Bronzavia-Air Equipement Nozzle and a device for the use of a nozzle of this type
DE4039329A1 (de) * 1989-12-28 1991-07-04 Grohe Armaturen Friedrich Brausekopf
DE19919461A1 (de) 1999-04-29 2000-11-02 Elias Russegger Verschließbare Düse
EP1123743A1 (fr) 1998-10-22 2001-08-16 Yosuke Naito Pomme de douche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH261778A (fr) * 1947-07-23 1949-05-31 Schneider Hans Dispositif pulvérisateur de liquide sous basse pression.
DE1104448B (de) 1959-03-13 1961-04-06 Hansa Metallwerke Ag Brausekopf
US4869431A (en) 1986-06-17 1989-09-26 Bronzavia-Air Equipement Nozzle and a device for the use of a nozzle of this type
DE4039329A1 (de) * 1989-12-28 1991-07-04 Grohe Armaturen Friedrich Brausekopf
EP1123743A1 (fr) 1998-10-22 2001-08-16 Yosuke Naito Pomme de douche
DE19919461A1 (de) 1999-04-29 2000-11-02 Elias Russegger Verschließbare Düse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20102109A1 (it) * 2010-11-15 2012-05-16 Garef Di Bacchetta Roger Dispositivo per erogazione di liquido
CN102059182A (zh) * 2011-01-28 2011-05-18 常优军 淋浴头
WO2016165744A1 (fr) * 2015-04-14 2016-10-20 Husqvarna Ab Appareil de pulvérisation et tête de pulvérisation pour un appareil de pulvérisation
CN108311302A (zh) * 2016-07-14 2018-07-24 泉州市汇辰产品设计有限公司 一种顶喷式防堵花洒

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