EP0418204A2 - Dispositif autonettoyant pour appareil d'hydromassage - Google Patents

Dispositif autonettoyant pour appareil d'hydromassage Download PDF

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Publication number
EP0418204A2
EP0418204A2 EP90830401A EP90830401A EP0418204A2 EP 0418204 A2 EP0418204 A2 EP 0418204A2 EP 90830401 A EP90830401 A EP 90830401A EP 90830401 A EP90830401 A EP 90830401A EP 0418204 A2 EP0418204 A2 EP 0418204A2
Authority
EP
European Patent Office
Prior art keywords
pump
hydro
bath
tub
massage
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
EP90830401A
Other languages
German (de)
English (en)
Other versions
EP0418204A3 (en
EP0418204B1 (fr
Inventor
Walter Sforza
Giuseppe Calearo
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.)
Merloni Termosanitari SpA
Original Assignee
Merloni Termosanitari SpA
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
Application filed by Merloni Termosanitari SpA filed Critical Merloni Termosanitari SpA
Publication of EP0418204A2 publication Critical patent/EP0418204A2/fr
Publication of EP0418204A3 publication Critical patent/EP0418204A3/en
Application granted granted Critical
Publication of EP0418204B1 publication Critical patent/EP0418204B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/6068—Outlet from the bath
    • A61H33/6073—Intake mouths for recirculation of fluid in whirlpool baths
    • A61H33/6078—Combined with waste outlets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H2033/0008—Arrangement for cleaning the installation before or after use
    • A61H2033/0012—Arrangement for cleaning the installation before or after use by rinsing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H2033/0008—Arrangement for cleaning the installation before or after use
    • A61H2033/0033—Arrangement for cleaning the installation before or after use by draining-off pumps, nozzles, waterlines by gravity

Definitions

  • This invention relates to a device for self-cleaning of a hydro-massage appliance. More particularly, this invention relates to an accessory device provided in a hydro-massage appliance in order to perform an automatic washing cycle for cleaning of the bath-tub as well as of all conduits of the appliance.
  • the hydro-massage appliance manufacturers generally suggest that, for cleaning purposes, the appliance operation be started with clean water, but it is apparent that, with such a solution, a noticeable water amount is wasted without a suitable disinfection effect being achieved.
  • the conduits through which air is supplied to the outlet nozzles are not cleaned, even if they are amenable to be contaminated as well, due to the fact that they can also be flooded by the bath-tub water,
  • the hydro-massage pump draws up the water from the bottom of the bath-tub and drives it into the supply conduit and through the outlet nozzles provided in the bath-tub wherefrom a mixture of water and air is supplied into the bath-tub.
  • the drainage hole is independent and conventionally connected to the conduits of the mains.
  • the pump is usually arranged laterally of the bath-tub, with an upwardly oriented delivery port, which unavoidably inhibits the scroll to be completely emptied.
  • an upwardly oriented delivery port which unavoidably inhibits the scroll to be completely emptied.
  • Such a discharge port can be easily occluded, since water (and the residuals contained in it) pass therethrough by simple drainage effect.
  • a more rational arrangement of a hydro-massage is the one shown in Figure 2: the pump is arranged between the drainage hole of the bath-tub and the connection joint with the drainage mains, so that the water is drawn through the drainage hole of the bath-tub.
  • the pump drives the water in a loop passing through the hydro-massage appliance, but, when the valve is open, the water is drained through the pump.
  • the pump is arranged with its delivery conduit at the bottom and horizontally extended, it can be completely emptied upon drainage of the bath-tub. No problem exists in priming the pump when the bath-tub contains water, because the pump is connected to the drainage port of the bath-tub and, therefore, it is immediately filled with water. By this reason, the pump is conveni­ently arranged below the minimum level in the bath-tub, so that it is completely filled-up.
  • a further rational choice from a hygienic point of view consist in minimizing the surfaces exposed to being wet, in particu­lar by arranging the hydro-massage nozzles in more closely spaced positions and where they are more effective from a view point of the hydro-massage effects.
  • the device should be incorporated with the appliance and the operation thereof should be started, as soon as the hydro-massage treatment is over and the bath-tub is emptied, by means of a simple manual control.
  • this invention provides for equipping a hydro-massage appliance having its drainage hole connect­ed with the delivery port of the pump with a set of additional components that enable a cleaning cycle to be performed by means of forced circulation of water in all water as well as air conduits, and with a noticeably smaller water amount with respect to the amount which should be needed to completely fill-up the bath-tub.
  • a device for self-cleaning has been set-up, wherein the washing or cleaning water is forcedly circulated in the appliance by means of the pump, but wherein the water flow­rate is reduced (partialized) with respect to the standard hydro-mas­sage water flow-rate, in order that the jets ejected by the nozzles be less violent and the appliance be operated with a water level in the bath-tub lower than the nozzle level, i.e. with a strongly reduced water amount.
  • the device according to the invention controls the aperture of the discharge valve, so that the cleaning water is little by little disposed by forced drainage under the action of the pump, rather than merely by gravity.
  • the device according to this invention is provided with a junction for indepen­dent connection to the mains, including a valve for controlling the inlet of cleaning water into the appliance and connected to the air distribution networks. When the valve is open, the inlet of cleaning water is caused to reach the bath-tub both through the small air tubes and the delivery nozzles and through the over-flow hole.
  • the pump is preferably arranged under the bottom level of the bath-tub with horizontally extended downwardly depending delivery conduit.
  • the above-mentioned partial interception device when all water has been drained, is preferably operated so as to be reset to its open position, while the above-mentioned discharge valve operating device is also adapted to control its partial opening at the begin of the cleaning step.
  • said operating device for the cleaning water inlet valve consists of a stem connected to the shutter and cooperating with a cam spindle, said operating device for the discharge valve is formed by lever means pivotally connected to the shutter and cooperating with said cam spindle, as well as by a flexible cable connected to the shutter for manual control, and said partial interception device acting upon the delivery flow of the pump is a throttle valve, hinged on the same axis of the cam spindle and controlled, therefore, either by the rotative movements of the cam spindle or by the pressure of the water flow intercepted by the throttle valve.
  • An eccentric counterweight connected to a flexible cable for manual control is integral with the cam spindle.
  • said device for sensing the water level in the bath-tub and for con­trolling the pump is a pressure switch wherein the sensed water level in the bath-tub is converted into a gas pressure signal and whereby the pump operation is started upon the pressure exceeding a predeter­mined limit, while the pump operation is stopped upon the pressure falling under a predetermined limit.
  • the flexible cables for manual control are preferably connected to a control knob arranged upon the overflow hole of the bath-tub and selectively switchable over three positions of hydro-­massage, discharge and cleaning, respectively.
  • a self-cleaning device accord­ing to the broadest embodiment of this invention can also be manufac­tured by using components other than the heretofore mentioned ones, provided that they perform the same functions.
  • components other than the heretofore mentioned ones for instance, in stead of the throttle valve as well as of the other two mentioned valves solenoid operated valves can be used and suitable circuitry can be substituted for the mentioned mechanical operation system based upon a cam spindle.
  • reference numeral 1 designates the bath-tub
  • 2 designates the centrifugal pump
  • 3 designates the water supply conduits
  • 4 designates the nozzles
  • 5 designates the drainage hole of the bath-tub
  • 6 designates the drainage conduit.
  • the drainage route is completely independent of the hydro-massage circulation system
  • the drainage conduit con­trolled by valve 7 is connected to the delivery port of the pump and the re-cycled hydro-massage water is intaken by the pump through the drainage hole of the bath-tub.
  • FIG 3 wherein a hydro-massage appliance as proposed according to this invention is shown, components corresponding to Figures 1 and 2 are designated by the same reference numerals. Furthermore, it is possible to identify the pump motor 8, the intake conduit 9 of the pump, connected to the drainage hole 5 of the bath-tub, the downwardly arranged horizontally extended delivery conduit 10, the water distributor 11, by which the water coming from the pump is distributed to the various water supply conduits 3, the air distributor 12 by which the air sucked through the overflow hole 13 is supplied to the air conduits 14 connected to the nozzles 4.
  • Numeral 15 designates the overflow conduit by which the excess water is discharged into the drainage conduit 6 through valve 16.
  • FIG 4 The components of the self-cleaning device can be better identified in Figure 4, wherein reference numeral 17 designates the connection to the delivery conduit of the pump; along the route of the water, within block 18, a throttle valve (designated by 19 in Figures 5 to 7) is arranged to shut the water flow during the cleaning cycle.
  • Numeral 20 designates the connection for the inlet of the cleaning water, while the related valve (designated by 21 in Figures 5 to 7) is housed in block 22; the route of the inlet conduit of the cleaning water includes, downstream of the valve, the elbow fitting 23 that is connected to a small tube (designated by 24 in Figure 3) by which the cleaning water is supplied to the air dis­tributor 12.
  • a discharge valve 7 (shown in cross-section view in Figures 5 to 7) is arranged under the return spring 25; screw 26 is part of the clamp by which the flexible cable (27 in Figure 3) for manual control of the drainage aperture is gripped.
  • the manual control can be operated by means of a knob that is located upon the overflow hole 13 within the bath-tub.
  • a control knob is shown (reference numeral 28) in a corner of each of Figures 5-7, positioned according to the respective cycles shown in the Figures.
  • Counterweight 29 is furthermore identifiable in Figure 4, in phantom, connected to the end of a cam spindle 30 (partially shown). Said spindle, (as it can be more clearly seen in subsequent Figures) is coaxial and integral with the hinge of the throttle valve and it controls by its rotative movements either the aperture of the cleaning water inlet valve 21 or the aperture of the discharge valve 7.
  • FIG. 5 illustrating the device in the hydro-massage cycle (knob 28 in corresponding posi­tion).
  • the throttle valve 19 is completely open and the discharge valve 7 is completely closed.
  • the contact element 31 pivotally connected to the stem 32 of the cleaning water inlet valve 21 is in a such position that valve 21 is maintained in closed condition (due to the action of the return spring 33) and, therefore, no water can be admitted into the appliance (or emitted therefrom, because valve 7 is closed).
  • the water merely circulates as shown by the arrows, thereby exploiting the hydro-massage action.
  • knob 28 When a cleaning cycle is to be effected (Figure 6), knob 28 is rotated to the corresponding related position: this causes the flexible cable 34 to be stretched ( Figure 3), said cable being connected to counterweight 29 by means of a clamp arranged in hole 35; the cam spindle 30 rotates and this rotation causes the contact element 31 and the stem 32 to be lifted up and the cleaning water inlet valve 21 to be opened.
  • the water is admitted through connection 20 and by passing through valve 21, the elbow fitting 23 and the small tube 24 it runs through the air distribution network according to the schematic arrows of Figure 6, thereby cleaning all internal surfaces.
  • the rotation of the spindle also causes the throttle valve 19 to be positioned in the sloping position shown in Figure 6, as well as the discharge valve 7 to be slightly opened, due to the fact that the shutter controlled by lever 37 pivotally connected thereto has been slightly lifted up.
  • Lever 37 structurally formed with two parallel wings, has a bracket 38 positioned between its two wings at its end opposed to the one at which it is pivoted to the shutter of the valve 7; the bracket 38 runs uppon eccentric wheel (not shown) mounted upon spindle 30 and in view of this a rotation of said spindle to the position shown in Figure 6 causes the discharge valve 7 to be partially opened.
  • the second cleaning step shown in Figure 7 is started by operation of the pressure switch designated by 39 in Figure 3.
  • This device is connected to conduit 40 communicating with the drainage hole 5 of the bath-tub.
  • the pressure switch 39 When the water level in conduit 40 rises (as it rises in the bath-tub 1) the air trapped in the small tube 41 of the pressure switch 39 is compressed.
  • the pressure switch triggers the control action.
  • Such control action causes the pump 2 to be started ( Figure 7); the pressure of the water driven by the pump causes the throttle valve 19 to be closed and only a small port is left between the internal walls of the conduit and the edge of the shutter, so that the flow rate of the water running through said port is very small.
  • the water running through the distributor 11 and the conduits 3 cleans them and enters into the bath-tub through nozzles 4 in the form of a not-submersed jet with a much reduced power with respect to the standard jet of a hydro-massage treatment.
  • the pump causes the cleaning water to be recirculated, the water inlet into the appliance is stopped and the drainage step is started; the water level in the bath-tub gradually lowers and the head of the pump decreases, while the throttle valve 19 is slowly lifted up under action of the counterweight 29.
  • the spindle 30 gradually rotates backwardly, but this neither causes the water inlet valve 21 to be re-opened, nor the discharge valve 7 to be re-closed.
  • the profile of element 31 pivoted on the stem is such that, when the spindle rotates back­wardly, element 31 rotates about its pivot without lifting the stem 32 and the shape of the lever 37 is such that, upon being completely lifted up, it is restrained in this position and it can no more return back.
  • the pressure switch 39 senses that the water level has lowered beyond a predetermined minimum value (for inst. 1 cm from bottom) and switches the pump off. The residual water flows under gravity action through the still open drainage hole.
  • the control knob 7 be rotated to its "drainage” position because this action causes the lever 37 to be disengaged.
  • the valve 37 can freely be closed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Massaging Devices (AREA)
EP90830401A 1989-09-15 1990-09-12 Dispositif autonettoyant pour appareil d'hydromassage Expired - Lifetime EP0418204B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4837689 1989-09-15
IT8948376A IT1232232B (it) 1989-09-15 1989-09-15 Dispositivo di autolavaggio in un impianto di idromassaggio

Publications (3)

Publication Number Publication Date
EP0418204A2 true EP0418204A2 (fr) 1991-03-20
EP0418204A3 EP0418204A3 (en) 1991-05-22
EP0418204B1 EP0418204B1 (fr) 1994-08-31

Family

ID=11266191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90830401A Expired - Lifetime EP0418204B1 (fr) 1989-09-15 1990-09-12 Dispositif autonettoyant pour appareil d'hydromassage

Country Status (4)

Country Link
EP (1) EP0418204B1 (fr)
AT (1) ATE110561T1 (fr)
DE (2) DE418204T1 (fr)
IT (1) IT1232232B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888767A2 (fr) * 1997-07-03 1999-01-07 IDEAL STANDARD S.p.A. Unité de fermeture et de connexion pour buses d'hydromassage
FR2924135A1 (fr) * 2007-11-28 2009-05-29 Victor Jean Ballestra Dispositif de vidage pour appareil sanitaire equipe de moyens d'hydrotherapie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263678A (en) * 1965-05-19 1966-08-02 Joseph H Everston Therapeutic bathtub having plural aspirating fittings
DE1491293A1 (de) * 1963-03-15 1969-04-03 Jacuzzi Bros Inc Hydrotherapeutisches Geraet bei Badewannen
EP0164068A2 (fr) * 1984-06-02 1985-12-11 HOESCH Metall + Kunststoffwerk GmbH & Co. Système, avec prérinçage, de bain tourbillonnant
EP0252435A2 (fr) * 1986-07-07 1988-01-13 Thomas Kurt Fränninge Méthode et appareil pour nettoyer les conduits d'une installation de bain

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1491293A1 (de) * 1963-03-15 1969-04-03 Jacuzzi Bros Inc Hydrotherapeutisches Geraet bei Badewannen
US3263678A (en) * 1965-05-19 1966-08-02 Joseph H Everston Therapeutic bathtub having plural aspirating fittings
EP0164068A2 (fr) * 1984-06-02 1985-12-11 HOESCH Metall + Kunststoffwerk GmbH & Co. Système, avec prérinçage, de bain tourbillonnant
EP0252435A2 (fr) * 1986-07-07 1988-01-13 Thomas Kurt Fränninge Méthode et appareil pour nettoyer les conduits d'une installation de bain

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888767A2 (fr) * 1997-07-03 1999-01-07 IDEAL STANDARD S.p.A. Unité de fermeture et de connexion pour buses d'hydromassage
EP0888767A3 (fr) * 1997-07-03 1999-06-30 IDEAL STANDARD S.p.A. Unité de fermeture et de connexion pour buses d'hydromassage
US6085791A (en) * 1997-07-03 2000-07-11 American Standard Inc. Close-off and connecting unit for hydromassage orifices
FR2924135A1 (fr) * 2007-11-28 2009-05-29 Victor Jean Ballestra Dispositif de vidage pour appareil sanitaire equipe de moyens d'hydrotherapie

Also Published As

Publication number Publication date
EP0418204A3 (en) 1991-05-22
DE69012027D1 (de) 1994-10-06
IT8948376A0 (it) 1989-09-15
IT1232232B (it) 1992-01-28
DE418204T1 (de) 1991-08-14
ATE110561T1 (de) 1994-09-15
EP0418204B1 (fr) 1994-08-31

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