EP0730857B1 - Buse d'aspiration pour bains d'hydromassage - Google Patents

Buse d'aspiration pour bains d'hydromassage Download PDF

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Publication number
EP0730857B1
EP0730857B1 EP96200602A EP96200602A EP0730857B1 EP 0730857 B1 EP0730857 B1 EP 0730857B1 EP 96200602 A EP96200602 A EP 96200602A EP 96200602 A EP96200602 A EP 96200602A EP 0730857 B1 EP0730857 B1 EP 0730857B1
Authority
EP
European Patent Office
Prior art keywords
obturator
nozzle
sleeve
closing member
suction
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.)
Expired - Lifetime
Application number
EP96200602A
Other languages
German (de)
English (en)
Other versions
EP0730857A3 (fr
EP0730857A2 (fr
Inventor
Livio Furlan
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.)
Jacuzzi Europe SpA
Original Assignee
Jacuzzi Europe 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 Jacuzzi Europe SpA filed Critical Jacuzzi Europe SpA
Publication of EP0730857A2 publication Critical patent/EP0730857A2/fr
Publication of EP0730857A3 publication Critical patent/EP0730857A3/fr
Application granted granted Critical
Publication of EP0730857B1 publication Critical patent/EP0730857B1/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

Definitions

  • the present invention relates to a suction nozzle for hydromassage baths.
  • the suction nozzles which are usually situated at the bottom of the bath, enable the water contained in the bath to be removed in order to supply the delivery nozzles.
  • the suction nozzles are connected by means of suction ducts to one or more pumps which convey, by means of suitable delivery ducts, the water removed from the bath to the delivery nozzles.
  • the suction nozzles comprise a box-shaped body having, connected to it, a suction duct which is in turn connected to a circulation pump.
  • the nozzles comprise, moreover, a closing member designed to intercept the flow of water which flows from the nozzle into the suction duct.
  • the closing member when a person wishes to take a bath with hydromassage, the closing member is in the open position, allowing the water contained in the bath to flow into the pipes of the hydromassage system whereas, when a person wishes to take a bath without hydromassage, the closing member is in the closed position, preventing the water from entering the pipes.
  • the discharge valve includes a lever element provided with an obturator for closing and opening a discharge hole formed in the sleeve, said element being hinged at one end and provided with a float at the other end.
  • the closing member comprises an obturator connected to a membrane displaceable by means of the pressure generated inside the delivery duct of the circulation pump.
  • the pressure produced inside the delivery duct displaces the membrane and the obturator and, consequently, causes the obturator of the closing member to open.
  • this embodiment has various drawbacks, including the fact that the pressure produced by the pump might not be sufficient to displace the membrane and thus open the closing member. Moreover, in the event of the pump not being able to be triggered, i.e. continuing to drying operate, a considerable amount of damage could occur inside the pump itself.
  • the main aim of the present invention is therefore to devise and provide a nozzle in which the drawbacks mentioned with respect to the cited known art can be eliminated.
  • a further aim is to provide a suction nozzle which has a simple constructional design, is low-cost and allows rapid filling of the suction duct.
  • a suction nozzle for hydromassage baths of the type mentioned initially i.e. designed to be connected to a circulation pump via a suction duct, which is charaterized as claimed here below.
  • said at least one passage consists in at least one hole formed in the obturator or in a duct located inside the body of the nozzle provided with a shut-off valve actuated by an electromagnetic device.
  • shut-off valve prior to start-up of the pump, it is necessary to open the shut-off valve by energizing the electromagnetic device, said valve being suitably closed as soon as the hydromassage bath has been completed.
  • the suction nozzle comprises controlled-opening means for connecting its interior the suction duct.
  • the suction ducts of each nozzle are first filled via said controlled-opening means. Only at the end of filling of the suction ducts is the pump activated, so that the risk of the pump drying operating and the obturator remaining closed is eliminated.
  • vacuum which is required of the pump is of a magnitude such that low-power pumps may be used, thus resulting in substantial savings.
  • the suction nozzle comprises an electromagnetic device for displacement of the float into said lowered position when the nozzle is full of water with controlled opening of the valve and consequent introduction of water into said suction duct so as to favour triggering of the circulation pump.
  • the valve used for discharging the suction duct also for performing filling of the latter with water prior to start-up of the circulation pump, the design of the nozzle is simplified and its cost is reduced substantially. Moreover, the dimensions of the discharge hole, which may be increased, enable the suction duct to be rapidly filled with water.
  • a suction nozzle for hydromassage baths is denoted in its entirety by 11.
  • the nozzle 11 comprises a box-shaped body 12 fixed, by means known per se, to the circular edge 16 of an opening formed in the wall 18 of a hydromassage bath tub (not shown in the Figures).
  • the box-shaped body 12 comprises a horizontally arranged sleeve 20 which extends from the body itself towards the inside thereof into the vicinity of a side wall 12a of the body 12; the sleeve 20 has connected to it the suction duct (not shown in the Figures) of the circulation pump.
  • the inner end 20a of the sleeve is provided with a closing member, denoted in its entirety by 22, which has the function, when a person takes a bath without wanting to use the hydromassage technique, of preventing the entry of the water contained in the bath.
  • the closing member 22 consists in an obturator 24 in the form of circular shaped disc, the peripheral edge of which presses against the end 20a of the sleeve 20 by means of the action of a helical spring 26 located between the obturator 24 and a cover 27 arranged inside an opening 29 formed in the side wall 12a.
  • the peripheral edge of the obturator 24 is sealingly fixed inside the circular opening of an annular membrane 28, the external peripheral edge of which is sealingly fixed between the edge of the opening 29 of the side wall 12a and the edge of the cover 27, thus defining a chamber 30 between the cover 27, the obturator 24 and the membrane 28.
  • the membrane 28 is made of deformable material and allows a displacement of the obturator 24 from a position in which it is engaged with the end 20a of the sleeve 20 (see Figure 1) into a position in which it is located at a distance therefrom (see Figure 2).
  • the obturator 24 has formed in it two holes 32 which connect up the chamber 30 with the sleeve 20 and hence with the suction duct.
  • the circulation pump is started, creating a vacuum upstream thereof, i.e. inside the sleeve 20 and hence inside the chamber 30.
  • the respective negative pressures acting on the two faces of the obturator 24 are equal and hence counter-balance each other, while the negative pressure acting on the face of the membrane 28 directed towards the inside of the chamber 30 is less than the value of the pressure acting on the opposite face. Consequently, the membrane 28 subjects the obturator 24 of the closing member 22 to a force acting in the direction of the cover 27 against the action of the spring 26.
  • the elastic constant of the spring 26 is such that the force exerted by the spring itself on the obturator 24 is less than the resultant of the positive and negative pressures acting on the membrane 28, so that the obturator 24 is separated from the end 20a of the sleeve 20.
  • the pump is thus able to suck water from the bath through the sleeve itself through the suction duct of the circulation pump, as indicated by arrow 5 in Figure 2.
  • FIGS. 3 to 10 show nozzles according to a few variants of the invention in which the same reference numbers have been used for components or parts similar to those of the preceding nozzle.
  • Figures 3 and 4 show a nozzle 50 similar to the preceding nozzle, in which communication between the chamber 30 and the sleeve 20 is established not by means of the holes provided in the obturator, but by means of a communication duct 52 provided in the body 12 of the nozzle 50. More precisely, the communication duct 52 has a first end 52a communicating with the chamber 30 and a second end 52b communicating with the sleeve 20.
  • the communication duct 52 has inside it, in the vicinity of the end 52b, a shut-off valve, denoted in its entirety by 54, which is provided with an obturator 56 and actuated by an electromagnetic device 58.
  • the electromagnetic device 58 comprises an electric winding 60 with housed inside it a movable core 62 rigid with the obturator 56 of the shut-off valve 54. Moreover, the obturator 56 is retained in the closed position (see Figure 3) by means of a spring 64 arranged around the movable core 62 and located between the obturator itself and the electric winding 60.
  • the electromagnetic device 58 In the case where a hydromassage bath is required, the electromagnetic device 58 must first be energized and the circulation pump then started. Energization of the electromagnetic device 58 can only be interrupted when the vacuum generated by the pump has caused opening of the closing member 22 to allow water to be sucked into the circulation pump through the gap between the end 20a of sleeve 20 and the obturator, as illustrated in Figure 4 by arrows.
  • Figures 5, 6, 7 and 8 show a further embodiment which consists in a nozzle 100 similar to the nozzle 11 of Figures 1 and 2.
  • the nozzle 100 is provided with a discharge valve 104 of the float type in order to allow emptying of the hydromassage system at the end of the hydromassage operation.
  • the discharge valve 104 comprises an obturator 106 associated with a discharge hole 108 formed in the bottom portion of the sleeve 20.
  • the obturator 106 is fixed to a lever element 110 having one end 110a hinged to the sleeve 20, while the opposite end 110b is provided with a float 112.
  • the lever element 110 lies on the bottom of the body 12 of the nozzle 100 and the obturator 106 is located at distance from the discharge hole 108 of the sleeve 20 (see Figure 7), thus allowing the water contained inside the suction duct to flow out.
  • the nozzle 100 is filled with water and the float 112 rises, raising the lever 110 so that the obturator 106 closes off the discharge hole 108 of the sleeve 20 (see Figure 8). In this way, if a person wishes to take a bath without hydromassage, the water contained in the bath is prevented from passing at all into the suction duct of the hydromassage system.
  • the discharge valve 104 has associated with it an electromagnetic device 114 having the function of lowering, when activated, the lever element 110 with the nozzle full of water.
  • the electromagnetic device 114 comprises an element in the form of a ferromagnetic plate 116 fixed onto the lever element 110, in an intermediate position between the float 112 and the obturator 106 and an electromagnet 118 arranged outside the underneath part of the body 12 of the nozzle 100 and facing the ferromagnetic plate 116.
  • the ferromagnetic plate 116 By supplying the electromagnet 118 with a predetermined excitation current, the ferromagnetic plate 116 is attracted downwards by it, thus causing lowering of the lever element 110 against the hydrostatic thrust acting on the float 112, when the bath and hence the nozzle 100 are filled with water, which would tend to keep the lever element 110 raised.
  • Excitation of the electromagnetic 118 is maintained for a predetermined period of time substantially corresponding to the triggering time of the circulation pump.
  • the electric power supply line of the suction pump contains a component designed to allow activation of the latter only after a predetermined period of time from the start of excitation of the electromagnet 118, thus avoiding operation of the circulation pump under no load, which might otherwise cause problems.
  • the first choice consists in taking an ordinary bath without using the technique of hydromassage so that the circulation pump is not started. As soon as the bath has been completed, the water contained in the bath is emptied, the float 112 of the discharge valve 104 comes to rest on the bottom of the body 12 of the nozzle 100 and the obturator 106 opens, allowing emptying of the pipes.
  • the second choice consists in using the hydromassage system.
  • First of all the predetermined excitation current is supplied to the electromagnet 118 which draws towards it the ferromagnetic plate 116, causing the obturator 106 to be lowered and hence allowing the water contained in the body 12 of the nozzle 100 to enter into the sleeve 20 through the discharge hole 108, and hence fill the suction duct of the circulation pump.
  • the pump is started, creating a vacuum upstream thereof, i.e. inside the sleeve 20 and inside the chamber 30.
  • the obturator 24 moves away from the end 20a of the sleeve 20 and the pump is thus able to suck up water from the bath through the sleeve itself in the manner already indicated above.
  • the flow of the excitation current inside the electromagnet 118 is interrupted so that the ferromagnetic plate 116 is no longer attracted by the electromagnet itself and hence the float 112 is raised, closing the obturator 106 of the discharge valve 104.
  • the flow of the excitation current of the electromagnet 118 can be maintained for the entire period of operation of the pump, so that the water contained in the bath flows into the suction duct both through the obturator 24 of the closing member 22 and through the obturator 106 of the discharge valve 104.
  • Figures 9 and 10 illustrate a variant of the nozzle 100 according to Figures 5 to 7 and more precisely a nozzle 150 in which communication between the interior of the body 12 of the nozzle 150 and the sleeve 20 is established by means of a through-hole 152 formed in the sleeve 20; the through-hole 152 has, moreover, associated with it a closing valve 154 provided with an obturator 156 and actuated by an electromagnetic device 158.
  • the electromagnetic device 158 comprises an electric winding 160 which has housed inside it a movable core 162 rigid with the obturator 156 of the closing valve 154. Moreover the obturator 156 is retained in the closed position (see Figure 9) by means of an annular spring washer 164 which is provided with a central and circular opening inside which the obturator 156 is fixed and which has an external peripheral edge rigid with the electric winding 160.
  • the movable core 162 By supplying the electric winding 160 with an electric current of predetermined intensity, the movable core 162 is attracted inside the electric winding 160 and the obturator 156 of the closing valve 154 is displaced against the action exerted by the spring washer 164, thus opening the through-hole 152, as illustrated in Figure 10.
  • the electromagnetic device 158 In the case where a hydromassage bath is required, the electromagnetic device 158 must first be energized, the suction duct allowed to be filled and the circulation pump then started, the latter causing the closing member 22 to open, as illustrated in Figure 10.
  • Energization of the electromagnetic device 158 will be interrupted when the suction duct has been completely filled with water.
  • the electromagnetic device 158 can be kept energized for the entire duration of operation of the circulation pump such that the water contained in the nozzle 150 is sucked both through the closing member 22 and across the through-hole 152.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)

Claims (5)

  1. Buse d'aspiration pour bains d'hydromassage, consistant en un corps (12) pouvant être raccordé à une baignoire et comportant un manchon (20) pour le raccordement au conduit d'aspiration d'une pompe de circulation et pourvu, à son extrémité intérieure (20a), d'un élément de fermeture (22) destiné à intercepter l'écoulement d'eau depuis la buse (11, 50, 100, 150) vers ledit conduit d'aspiration à travers l'extrémité intérieure (20a) du manchon, ledit élément de fermeture (22) comprenant un obturateur (24) maintenu dans sa position fermée par des moyens élastiques (26) et comprenant, de plus, une membrane (28) située entre l'obturateur (24) et un capot (27) fixé à la paroi latérale (12a) du corps de buse (12) faisant face à l'obturateur (24) de sorte que ledit obturateur, ledit capot (27) et ladite membrane (28) définissent une chambre (30), caractérisée en ce que la buse (11, 50, 100, 150) est pourvue d'au moins un passage (32, 52) destiné à relier l'intérieur de ladite chambre (30) audit manchon (20) de sorte que, par l'intermédiaire dudit passage (32, 52), le vide généré dans le conduit d'aspiration de la pompe de circulation puisse être transmis à l'intérieur de ladite chambre (30) afin d'ouvrir ledit élément de fermeture (22).
  2. Buse d'aspiration selon la revendication 1, caractérisée en ce que ledit passage (52) est pourvu d'une vanne d'arrêt (54).
  3. Buse d'aspiration selon la revendication 2, caractérisée en ce que ladite vanne d'arrêt (54) est actionnée par un dispositif électromagnétique (58) contre l'action de moyens élastiques (64).
  4. Buse d'aspiration selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend une ouverture (152), qui consiste, de préférence, en un trou traversant formé dans ledit manchon (20) et est associée à des moyens formant vanne (154), pour relier l'intérieur de la buse (150) au manchon (20).
  5. Buse d'aspiration selon la revendication 4, caractérisée en ce que lesdits moyens formant vanne (154) sont actionnés par un dispositif électromagnétique (158) contre l'action de moyens élastiques (164).
EP96200602A 1995-03-09 1996-03-05 Buse d'aspiration pour bains d'hydromassage Expired - Lifetime EP0730857B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95TV000028A IT1279277B1 (it) 1995-03-09 1995-03-09 Bocchetta di aspirazione per idromassaggio
ITTV950028 1995-03-09

Publications (3)

Publication Number Publication Date
EP0730857A2 EP0730857A2 (fr) 1996-09-11
EP0730857A3 EP0730857A3 (fr) 1997-02-05
EP0730857B1 true EP0730857B1 (fr) 2002-01-16

Family

ID=11419610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96200602A Expired - Lifetime EP0730857B1 (fr) 1995-03-09 1996-03-05 Buse d'aspiration pour bains d'hydromassage

Country Status (4)

Country Link
EP (1) EP0730857B1 (fr)
DE (1) DE69618489T2 (fr)
ES (1) ES2171602T3 (fr)
IT (1) IT1279277B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210857399U (zh) * 2019-08-29 2020-06-26 福建西河卫浴科技有限公司 一种无积水的回水器及浴缸

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526360A (en) * 1968-10-18 1970-09-01 Itt Main line valve with pilot regulator
IT1200742B (it) * 1985-09-17 1989-01-27 Teuco Guzzini Srl Vasca da bagno con impianto per idromassagio perfezionato
DE3717508A1 (de) * 1987-05-23 1988-12-01 Schuessler Guenter Elektromagnetischer verschluss
ES2052023T3 (es) * 1989-10-11 1994-07-01 Zip Heaters Aust Pty Ltd Camara de flotacion.
US5167041A (en) * 1990-06-20 1992-12-01 Kdi American Products, Inc. Suction fitting with pump control device

Also Published As

Publication number Publication date
ITTV950028A0 (it) 1995-03-09
EP0730857A3 (fr) 1997-02-05
ITTV950028A1 (it) 1996-09-09
DE69618489T2 (de) 2002-08-22
EP0730857A2 (fr) 1996-09-11
ES2171602T3 (es) 2002-09-16
DE69618489D1 (de) 2002-02-21
IT1279277B1 (it) 1997-12-09

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