EP0443538A1 - Pomme de douche - Google Patents

Pomme de douche Download PDF

Info

Publication number
EP0443538A1
EP0443538A1 EP91102387A EP91102387A EP0443538A1 EP 0443538 A1 EP0443538 A1 EP 0443538A1 EP 91102387 A EP91102387 A EP 91102387A EP 91102387 A EP91102387 A EP 91102387A EP 0443538 A1 EP0443538 A1 EP 0443538A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
support plate
shower
shower head
projections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91102387A
Other languages
German (de)
English (en)
Other versions
EP0443538B1 (fr
Inventor
Roland Dipl.-Ing. Grassberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Masco GmbH
Original Assignee
Masco GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6400720&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0443538(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Masco GmbH filed Critical Masco GmbH
Publication of EP0443538A1 publication Critical patent/EP0443538A1/fr
Application granted granted Critical
Publication of EP0443538B1 publication Critical patent/EP0443538B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 invention relates to a shower head, comprising a shower head with an inlet and an outlet, a shower base releasably attached to the shower body and closing the outlet, and a rubber-elastic nozzle plate resting on a solid support plate of the shower base with a plurality of molded-on elastic nozzle projections, which extend into corresponding receiving bores Intervene support plate, have a greater axial length than the associated receiving bores of the support plate and protrude beyond the outer surface of the support plate even when not subjected to liquid pressure with elastically deformable ends.
  • the liquid fluid in the nozzle projections which automatically and elastically adjusts to the dimensions of the liquid channels, ensures that even at low liquid pressures the emerging jet remains spread out and the individual streams do not unite to form a single coarse jet shortly after emerging from the shower head.
  • the elastically expanding or contracting liquid channels in the nozzle projections are also intended to achieve a self-cleaning effect for the shower head, so that solids are discharged and limescale deposits are broken up and rinsed out through the nozzle openings.
  • the self-cleaning effect of this known shower head is not sufficient, in particular in the case of hard to very hard tap water, in order to remove the rapidly and massively forming limescale deposits or to reduce the extent to which the jet formation does not interfere.
  • the deposits which form directly on the outside of the nozzle openings are not or only inadequately removed by the self-cleaning action of the known shower head.
  • a self-cleaning effect is also to be achieved for the nozzle projections referred to there as tubes.
  • the nozzle projections are designed as relatively thin-walled tubes, the downstream part of which collapses or collapses in the depressurized state and closes the respective jet outlet opening.
  • the passage openings should be largely sealed off from the atmosphere, so that the water present in the shower head cannot dry out with the formation of limescale deposits.
  • the thin-walled tubes are to be elastically widened, so that any possible incrustation flakes off at the initial stage and should be washed out with the shower water.
  • this known shower head may have the desired self-cleaning effect
  • the use of thin-walled tubular nozzle projections is disadvantageous for the spray pattern generated with the shower head.
  • the thin-walled nozzle projections experience different elastic expansions depending on the water pressure. At low pressures, the emerging jet is restricted by the thin-walled nozzle projections, while at higher pressures the expansion of the nozzle projections can go so far that the water jet is no longer adequately guided through the nozzle projections. It is therefore obvious that in the face of that usually within acceptable limits such as 0.5 and 5 bar changing water pressures, an acceptable spray pattern cannot be achieved with this known shower head.
  • the invention has for its object to provide an improved shower head, in which the nozzle projections at the usual water pressures do not experience any deformation impairing the spray pattern and in which a complete, but at least extensive removal of the outer scale deposits at the nozzle openings is still possible.
  • the stated object is achieved on the basis of the type of shower head specified at the outset in that the nozzle projections at their jet-forming outlet ends are thick-walled and dimensionally stable compared to the usual water pressures, but are deformable from the outside by mechanical action, the nozzle plate having the integrally molded nozzle projections from one is rubber-elastic material of a Shore hardness of about 40 to 50, and wherein the elastically deformable ends of the nozzle projections protrude about 1 to 2 times the outer diameter of the nozzle projections on the outer surface of the support plate.
  • the nozzle projections are not widened by the water pressure on the one hand because of their thick walls and the specified material selection at their jet-forming outlet ends, so that they deliver a well-guided water jet with a defined jet pattern under all operating conditions.
  • the nozzle projections always protrude so far beyond the outer surface of the support plate of the shower base that the protruding ends are exposed, for example, to the hand or fingers of the user, even when the shower head is not used, ie when the shower head is not flowed through by water can be compressed and / or bent by hand under elastic deformation, whereby they resist the mechanical external deformation action due to their design and their material with an eraser-like resistance.
  • the nozzle plate can be easily made from a suitable, relatively soft rubber material. Correspondingly soft elastomeric plastics are also suitable.
  • the thick-walledness is preferably achieved in such a way that at the outlet end of the nozzle projections the cross-sectional area formed from the outside diameter is approximately 7 to 10 times as large as the exit cross-sectional area formed from the clear width of the jet outlet opening.
  • the liquid channels in the nozzle projections are advantageously designed as stepped bores, with a larger inlet cross section and a smaller outlet cross section. If the axial length range of the larger inlet cross-section of the liquid channels protrudes beyond the outer surface of the support plate, the elastic deformability of the ends of the nozzle projections projecting beyond the outer surface of the support plate is further increased, which further removes any deposits from the liquid channels and / or at the outlet openings facilitated.
  • the nozzle projections are appropriately rounded at their ends.
  • the support plate can be flat and provided with receiving bores aligned parallel to one another.
  • the support plate is preferably curved outwards at least on its support surface for the rubber-elastic nozzle plate, the receiving bores being arranged to diverge from one another in the flow direction starting from the support surface.
  • the nozzle plate is clamped at its peripheral edge between an annular surface of the shower body and the support plate with the shower base attached to the shower body.
  • a pressure ring is inserted between the annular surfaces of the shower body and the peripheral edge of the nozzle plate. If the shower base is screwed to the shower body using a circumferential thread engagement, the pressure ring ensures that the circumferential edge of the rubber-elastic nozzle plate is not dragged along in the circumferential direction by friction, as a result of which shear stresses on the nozzle projections engaging in the receiving bores of the support plate are avoided.
  • the shower head can also be designed in such a way that it does not generate a geometrically defined spray pattern, but rather that the spray pattern can be adjusted for different propagation.
  • the support plate of the shower base is designed to be elastically deflectable and engages with a threaded part concentrically attached to it with a complementary threaded part attached to the shower body to achieve different curvatures of the support plate.
  • the curvature of the support plate is more or less large, corresponding to a larger or smaller beam spread.
  • the simple shower head shown in FIG. 1 in a first embodiment is essentially composed of a shower body 1 with inlet 2 and outlet 3 and a shower base 4.
  • the shower base 4 has a cylindrical peripheral edge 5 with an internal thread, with which it is screwed onto a cylindrical ring projection 6 of the shower body 1 provided with a corresponding external thread.
  • the annular projection 6 surrounds the outlet 3 of the shower body 1.
  • the inlet 2 is located in a lateral projection 7 of the shower body 1, which is intended for connecting a feed line (not shown) and possibly a handle (not shown) which communicates with the inlet 2 .
  • a fixed support plate 8 closing the outlet 3 is connected in one piece.
  • the support plate 8 is curved in the example shown for beam expansion outwards and has two concentric circular rows of receiving bores 9, which are arranged slightly diverging from each other according to the curvature of the support plate 8 in the flow direction.
  • the receiving bores 9 can also be arranged in a different geometric configuration depending on the desired properties of the shower jet.
  • the central area of the support plate 8 is shown as a closed wall.
  • receiving bores can also be provided in this area.
  • the support plate 8 is overall with provided with a curvature. For the intended purpose of expanding the jet, it would, however, be sufficient if only its inner surface, which serves as a support surface 10 for the nozzle plate 11, which will be described in more detail below, has a curvature.
  • the nozzle plate 11 made of a relatively soft rubber or a corresponding elastomeric plastic has a number of molded-on elastic nozzle projections 12 corresponding to the number of receiving bores 9 in the support plate 8, the mutual distances and the diameter of which are dimensioned such that the nozzle projections 12 into the assigned receiving holes 9 can be inserted.
  • the nozzle plate 11 can be manufactured as a flat component because, due to its material elasticity, it can easily adapt to the curvature of the support plate 8.
  • the liquid channels 13 in the nozzle projections 12, the orientation of which is predetermined by the axial direction of the receiving bores 9 when the nozzle plate 11 is attached to the support plate 8, are designed as simple stepped bores in the example shown, the larger diameter area of the stepped bore facing the interior of the shower body 1 is, while the smaller diameter areas of the stepped bore form the nozzle outlet cross-section.
  • the axial length of the elastic nozzle projections 12 is substantially greater than that of the associated receiving bores 9, as a result of which the outer ends of the nozzle projections 12 protrude clearly beyond the outer surface 14 of the support plate 8.
  • the outer ends of the nozzle projections 12 can therefore be easily deformed elastically by a slight external force, which means that they can be easily freed of any scale deposits. For this it may be sufficient if the shower head with the outer surface 14 is pulled past a suitable edge of the shower device, the outer ends of the nozzle projections are successively deformed and elastically returned to their starting position. It is therefore not absolutely necessary to deform the nozzle projections directly by hand or fingers.
  • the nozzle plate 11 is firmly clamped with its peripheral edge between the ring surface 15 of the ring projection 6 and the support plate 8, the clamping resulting when the shower base 4 is screwed onto the shower body 1.
  • a pressure ring 16 is inserted between the ring surface 15 and the nozzle plate 11, with the aid of which it is prevented that relative movements between the ring projection 6 and the support plate 8 are transmitted to the elastic nozzle plate 11 during screwing movements of the shower base 4.
  • the pressure ring 16 rests on the nozzle plate 11 and takes part in the screwing movements of the shower base 4, whereby it slides on the ring surface 15 when it reaches it when screwing it on, or when it separates from it when unscrewing it.
  • the nozzle plate 11 is provided on its peripheral edge with an annular rib 17 which engages in a corresponding annular groove 18 in the support plate 8. This engagement ensures that the nozzle plate 11 is also positively connected in its edge region to the support plate 8, this form fit not being lost even when the peripheral edge of the nozzle plate 11 is clamped in.
  • a shower head in which the angle of propagation of the emerging shower jet can be set within certain limits.
  • a corresponding cylindrical projection 20 of a cup-shaped housing part 21 is inserted in a cylindrical opening 19 of the shower body 1 'in a sealed manner by means of an O-ring seal 22.
  • the cylinder projection 20 is the End face of an inner and cylindrical fastening projection 23 of the shower body 1 'arranged coaxially to the housing part 21.
  • the fastening projection 23 is provided with a central threaded bore 24, into which a stepped bolt 26 with a threaded pin 25 for fastening the housing part 21 to the shower body 1 'is screwed.
  • the stepped bolt 26 is passed through a correspondingly stepped inner bore 27 of the housing part 21 and, with an annular surface 28, rests against an annular projection 29 of the housing part 21 protruding radially inward from the inner bore 27.
  • the fastening projection 23 is arranged such that it does not hinder the flow through the shower head emanating from the inlet 2 '.
  • the inlet 2 ' communicates with an annular interior 30 of the housing part 21 via a plurality of flow channels 31.
  • An annular wall 32 which delimits the interior 30 and which corresponds in function to the annular projection 6 of the first embodiment described with reference to FIG. 1 an external thread onto which the peripheral edge 5 'of the shower base 4' provided with a corresponding internal thread is screwed.
  • the ring wall 32 defines at its downwardly open end the outlet 3 'of the shower body 1' supplemented by the housing part 21. The sealing between the ring wall 32 and the peripheral edge 5 'of the shower base 4' takes over a further O-ring seal 33.
  • the support plate 8 ' which in this second embodiment is also integrally connected to the peripheral edge 5', is designed such that it can be bent more or less elastically in the axial direction.
  • an inwardly coaxially projecting threaded projection 34 is non-rotatably fastened in its center and is screwed into a corresponding threaded hole 35 of the stepped bolt 26.
  • the shower base 4 'and the housing part 21 are rotated together, depending on the direction of rotation of the threaded projection 34 being further screwed into or unscrewed from the threaded bore 35 of the stepped bolt 26 firmly screwed to the shower head 1'.
  • suitable additional constructive measures can be taken to prevent a relative screwing movement between the ring wall 32 and the peripheral edge 5 'of the shower base 4' from occurring during the screwing movement.
  • a nozzle plate 11 ' is provided with molded-on elastic nozzle projections 12', which is provided with a central through-opening 36 for the passage of the threaded projection 34 and which closely rests on the bearing surface 10 'of the support plate 8'. Due to its elasticity, the nozzle plate 11 'adapts to the different curvatures of the support plate 8'.
  • the nozzle projections 12 ' have a substantially greater axial length than that of the receiving bores 9' provided in the support plate 8 '.
  • the ends of the nozzle projections 12 ′ which in this case are also slightly elastically deformable due to the slight external force, are rounded in a cap-like manner, as is already shown in FIGS. 1 and 2 relating to the first embodiment.
  • the liquid channels 13 ' are stepped within the nozzle projections 12', the smallest opening cross section being provided at the outlet opening.
  • additional constructive measures can be taken on the shower base 4 'which prevent water from escaping past the nozzle plate 11' directly through the receiving bores 9 'along the outside of the nozzle projections 12 from the shower head.
  • the individual nozzle projection 12 (12 ') shown in FIGS. 4 and 5 essentially corresponds to the second embodiment according to FIG. 3, but the nozzle projections can also 12 of the first embodiment can be designed as shown in FIGS. 4 and 5.
  • the elastically deformable end of the nozzle projection 12 (12 ') projects in the example shown by approximately twice the outer diameter of the cylindrical nozzle projection beyond the outer surface 14 (14') of the support plate 8 (8 '), ie with an outer diameter of approximately 3 mm by about 6 mm.
  • the stepped liquid channel 13 (13 ') is composed of an axial length region 37 of larger cross section and an axial length region 38 of smaller cross section, the latter forming the jet-shaping outlet cross section. In the example shown, this has a square cross section, as illustrated in FIG. 5.
  • the cap-shaped rounding of the end of the nozzle projection 12 (12 ') has approximately the shape of a spherical cap.
  • the cross-sectional area of the nozzle projections formed from the outer diameter was approximately 12.5 mm2, i.e. approximately 8, with an outlet cross-sectional area of approximately 1.44 mm2 , Was 7 times as large as the outlet cross-sectional area.
  • the input cross-sectional area of the liquid channels was in each case approximately 3.14 mm2, i.e. the cross-sectional area of approximately 12.5 mm 2 formed from the outer diameter was approximately 4 times as large as the input cross-sectional area.

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  • Nozzles (AREA)
EP91102387A 1990-02-22 1991-02-20 Pomme de douche Expired - Lifetime EP0443538B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005569 1990-02-22
DE4005569 1990-02-22

Publications (2)

Publication Number Publication Date
EP0443538A1 true EP0443538A1 (fr) 1991-08-28
EP0443538B1 EP0443538B1 (fr) 1993-06-16

Family

ID=6400720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102387A Expired - Lifetime EP0443538B1 (fr) 1990-02-22 1991-02-20 Pomme de douche

Country Status (6)

Country Link
US (1) US5228625A (fr)
EP (1) EP0443538B1 (fr)
CA (1) CA2053228C (fr)
DE (1) DE4105183C5 (fr)
DK (1) DK0443538T3 (fr)
WO (1) WO1991012894A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994009910A1 (fr) * 1992-11-04 1994-05-11 Ideal-Standard Gmbh Pomme de douche
EP0597344A1 (fr) * 1992-11-04 1994-05-18 Friedrich Grohe Aktiengesellschaft Tête de douche
WO1995022407A1 (fr) * 1994-02-17 1995-08-24 Ideal-Standard Gmbh Fond pour pomme de douche et pomme de douche
DE4404966A1 (de) * 1994-02-17 1995-08-31 Ideal Standard Bodenteil für einen Brausekopf
DE4419696A1 (de) * 1994-06-04 1995-12-07 Ideal Standard Brausekopf
EP0700729A1 (fr) * 1994-09-10 1996-03-13 FRANZ SCHEFFER oHG Pomme de douche facile à nettoyer
US5699964A (en) * 1996-08-13 1997-12-23 Ideal-Standard Gmbh Showerhead and bottom portion thereof
EP1001095A2 (fr) 1998-11-13 2000-05-17 Hansgrohe AG Aérateur d'eau
WO2012024810A1 (fr) * 2011-07-21 2012-03-01 Pi-Design Ag Tête de distribution d'un préparateur de boissons
RU2575001C2 (ru) * 2011-07-21 2016-02-10 ПиАй-ДИЗАЙН АГ Распределительная головка для аппарата для приготовления напитков

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DE4447112C2 (de) * 1994-12-29 1998-11-12 Hansa Metallwerke Ag Brausekopf
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USD970684S1 (en) 2016-04-15 2022-11-22 Water Pik, Inc. Showerhead
US10441960B2 (en) 2016-09-08 2019-10-15 Water Pik, Inc. Pause assembly for showerheads
DE102016219551B4 (de) 2016-10-07 2022-01-05 Hansgrohe Se Brausestrahlerzeugungsvorrichtung
DE102016225987A1 (de) * 2016-12-22 2018-06-28 Hansgrohe Se Brausestrahlaustrittsvorrichtung und damit ausgerüstete Brause
CN206382134U (zh) * 2017-01-05 2017-08-08 温州万康宠物用品有限公司 一种淋浴头结构
USD843549S1 (en) 2017-07-19 2019-03-19 Water Pik, Inc. Handheld spray nozzle
USD872227S1 (en) 2018-04-20 2020-01-07 Water Pik, Inc. Handheld spray device
US11192125B2 (en) * 2018-09-11 2021-12-07 Kohler Co. Showerhead with pin plate
GB2578593B (en) * 2018-10-31 2020-11-25 Kohler Mira Ltd Spray head
DE102019105974A1 (de) * 2019-03-08 2020-09-10 Grohe Ag Sanitärbrause aufweisend einen Strahlbildner mit mindestens einem Entenschnabelventil
CN110370121A (zh) * 2019-07-31 2019-10-25 徐春霞 一种low-e玻璃生产加工设备
USD1003859S1 (en) 2020-01-02 2023-11-07 Kohler Co. Speaker system for bath and shower environments
DE102020105462A1 (de) 2020-03-02 2021-09-02 Neoperl Gmbh Sanitäre Auslaufeinheit
CN113492079A (zh) * 2020-04-03 2021-10-12 路达(厦门)工业有限公司 自清洁装置及花洒、喷枪、龙头
CN113318872B (zh) * 2021-06-22 2023-01-10 佛山市通海卫浴设备有限公司 一种防堵淋浴喷头

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Cited By (18)

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EP0597344A1 (fr) * 1992-11-04 1994-05-18 Friedrich Grohe Aktiengesellschaft Tête de douche
US5405089A (en) * 1992-11-04 1995-04-11 Friedrich Grohe Aktiengesellschaft Shower head with elastomeric nozzles
AT402164B (de) * 1992-11-04 1997-02-25 Ideal Standard Brausekopf
WO1994009910A1 (fr) * 1992-11-04 1994-05-11 Ideal-Standard Gmbh Pomme de douche
US5730361A (en) * 1992-11-04 1998-03-24 Ideal-Standard Gmbh Shower head with decalcification by deflecting elastic nozzles
EP0878237A2 (fr) 1994-02-17 1998-11-18 Ideal-Standard Gmbh Fond pour pomme de douche et pomme de douche
WO1995022407A1 (fr) * 1994-02-17 1995-08-24 Ideal-Standard Gmbh Fond pour pomme de douche et pomme de douche
DE4404966A1 (de) * 1994-02-17 1995-08-31 Ideal Standard Bodenteil für einen Brausekopf
DE4419696A1 (de) * 1994-06-04 1995-12-07 Ideal Standard Brausekopf
DE4419696C2 (de) * 1994-06-04 1998-01-29 Ideal Standard Brausekopf
EP0700729A1 (fr) * 1994-09-10 1996-03-13 FRANZ SCHEFFER oHG Pomme de douche facile à nettoyer
US5699964A (en) * 1996-08-13 1997-12-23 Ideal-Standard Gmbh Showerhead and bottom portion thereof
EP1001095A2 (fr) 1998-11-13 2000-05-17 Hansgrohe AG Aérateur d'eau
EP2280126A3 (fr) * 1998-11-13 2012-10-17 Hansgrohe AG Aérateur d'eau
EP1001095B1 (fr) * 1998-11-13 2014-01-08 Hansgrohe SE Aérateur d'eau
WO2012024810A1 (fr) * 2011-07-21 2012-03-01 Pi-Design Ag Tête de distribution d'un préparateur de boissons
RU2575001C2 (ru) * 2011-07-21 2016-02-10 ПиАй-ДИЗАЙН АГ Распределительная головка для аппарата для приготовления напитков
US9370274B2 (en) 2011-07-21 2016-06-21 Pi-Design Ag Distributing head for a beverage maker

Also Published As

Publication number Publication date
DE4105183C2 (de) 1996-07-11
US5228625A (en) 1993-07-20
CA2053228A1 (fr) 1991-08-23
EP0443538B1 (fr) 1993-06-16
DE4105183A1 (de) 1991-08-29
WO1991012894A1 (fr) 1991-09-05
DK0443538T3 (da) 1993-11-22
DE4105183C5 (de) 2004-03-04
CA2053228C (fr) 1999-09-28

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