EP0730857A2 - Suction nozzle for hydromassage - Google Patents
Suction nozzle for hydromassage Download PDFInfo
- Publication number
- EP0730857A2 EP0730857A2 EP96200602A EP96200602A EP0730857A2 EP 0730857 A2 EP0730857 A2 EP 0730857A2 EP 96200602 A EP96200602 A EP 96200602A EP 96200602 A EP96200602 A EP 96200602A EP 0730857 A2 EP0730857 A2 EP 0730857A2
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- EP
- European Patent Office
- Prior art keywords
- nozzle
- obturator
- nozzle according
- water
- valve
- 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.)
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- 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
Abstract
Description
- The present invention relates to a suction nozzle for hydromassage baths.
- In 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. For this purpose 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 according to the known art 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.
- More precisely, 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.
- Finally the nozzle is provided at the bottom with the conventional valve for discharging the water which is contained inside the suction duct. 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. In this way, when the bath and hence also the nozzle are filled with water, the float is raised and the obturator closes off the discharge hole, whereas, when there is no water, the float and hence the obturator are lowered, opening the discharge hole and thus allowing the water contained inside the hydromassage system to be discharged.
- According to a particular embodiment of the known art, 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. When the pump is activated, the pressure produced inside the delivery duct displaces the membrane and the obturator and, consequently, causes the obturator of the closing member to open.
- However, 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.
- This aim is achieved by 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 provided with a valve designed to connect up the interior of the nozzle with said duct, said valve comprising a lever element, freely oscillating in a vertical plane, hinged at one end with the body of the nozzle and provided at the other end with a float displaceable between a lowered position, with simultaneous opening of the valve when the nozzle is empty, and a raised position, with simultaneous closing of the valve when the nozzle is full of water, said suction duct being provided at its inner end with a closing member designed to intercept the flow of water which flows from the nozzle into the suction duct, said closing member comprising an obturator retained in the closed position by resilient means and further comprising a membrane located between the obturator and the wall of the nozzle facing the obturator so that said obturator, said wall and said membrane define a chamber, characterized in that said nozzle is provided with at least one passage designed to connect up the interior of said chamber with the suction duct such that, via said passage, the vacuum generated by the pump is transmitted inside said chamber in order to open said closing member.
- In order to start the hydromassage system it is therefore necessary to fill the bath first and then start operation of the pump such that the vacuum produced upstream thereof opens the closing member, thus allowing water contained inside the suction nozzle to be removed and conveyed to the delivery nozzles.
- In a particular application of the invention, 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.
- Obviously in this latter embodiment, 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.
- In a further embodiment, the nozzle comprises controlled-opening means for connecting up the interior of the nozzle with the suction duct.
- In this way, after filling the bath, in order to start-up the circulation pump, 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.
- Moreover the vacuum which is required of the pump is of a magnitude such that low-power pumps may be used, thus resulting in substantial savings.
- In a further application of the invention the 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.
- In this way, by employing 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.
- These and further characteristic features and advantages of the invention will emerge more clearly from the following detailed description, provided solely by way of a non-limiting example, with reference to the following accompanying figures, in which:
- Figure 1 is a longitudinally sectioned plan view of the nozzle according to the present invention, in which the closing member is shown in the closed position;
- Figure 2 is an enlarged detail of Figure 1, in which the closing member is shown in the open position;
- Figure 3 is a longitudinally sectioned plan view of a nozzle according to a first variant of the invention, in which both the closing member and the shut-off valve are shown in the closed position;
- Figure 4 is an enlarged detail of Figure 3, in which both the closing member and the shut-off valve are shown in the open position;
- Figure 5 is a longitudinally sectioned plan view of a nozzle according to a second variant of the invention, in which the closing member is shown in the closed position;
- Figure 6 is a partial cross-section, in elevation, through the nozzle according to Figure 5;
- Figure 7 is a partial longitudinal section, in elevation, through the nozzle according to Figure 5, in which the discharge valve is shown in the open position;
- Figure 8 is a figure similar to Figure 7, in which the discharge valve is shown in the closed position;
- Figure 9 is a longitudinally sectioned plan view of a nozzle according to a third variant of the invention, in which both the closing member and the through-hole are shown in the closed position;
- Figure 10 is an enlarged detail of Figure 9, in which both the closing member and the through-hole are shown in the open position;
- Figure 11 is a longitudinal section, in elevation, through a nozzle according to a fourth variant of the invention, in which a consent device for start-up of the circulation pump is provided;
- Figure 12 is a section along the line XII-XII of Figure 11;
- Figure 13 is a section along the line XIII-XIII of Figure 12.
- In Figures 1 and 2, 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 thecircular edge 16 of an opening formed in thewall 18 of a hydromassage bath tub (not shown in the Figures). - It can be noted, in particular from Figure 1, that the box-
shaped body 12 comprises a horizontally arrangedsleeve 20 which extends from the body itself towards the inside thereof into the vicinity of aside wall 12a of thebody 12; thesleeve 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. Theclosing member 22 consists in anobturator 24 in the form of circular shaped disc, the peripheral edge of which presses against theend 20a of thesleeve 20 by means of the action of ahelical spring 26 located between theobturator 24 and acover 27 arranged inside an opening 29 formed in theside wall 12a. - The peripheral edge of the
obturator 24 is sealingly fixed inside thecircular opening 28 of anannular membrane 28, the external peripheral edge of which is sealingly fixed between the edge of the opening 29 of theside wall 12a and the edge of thecover 27, thus defining achamber 30 between thecover 27, theobturator 24 and themembrane 28. Themembrane 28 is made of deformable material and allows a displacement of theobturator 24 from a position in which it is engaged with theend 20a of the sleeve 20 (see Figure 1) into a position in which it is located at a distance therefrom (see Figure 2). - Moreover, the
obturator 24 has formed in it twoholes 32 which connect up thechamber 30 with thesleeve 20 and hence with the suction duct. - The operational features of the
closing member 22 are as follows: In the rest condition shown in Figure 1, theobturator 24 of theclosing member 22, owing to the resilient action of thespring 26, is engaged with theend 20a of thesleeve 20. - In this initial situation, if a person wishes to take an ordinary bath without using the technique of hydromassage, the circulation pump is not started and the
obturator 24 remains closed, preventing the water contained inside the bath from entering the piping of the hydromassage system. - If, on the other hand, a person wishes to use the hydromassage system, the circulation pump is started, creating a vacuum upstream thereof, i.e. inside the
sleeve 20 and hence inside thechamber 30. The result is that the respective negative pressures acting on the two faces of theobturator 24 are equal and hence counter-balance each other, while the negative pressure acting on the face of themembrane 28 directed towards the inside of thechamber 30 is less than the value of the pressure acting on the opposite face. Consequently, themembrane 28 subjects theobturator 24 of theclosing member 22 to a force acting in the direction of thecover 27 against the action of thespring 26. The elastic constant of thespring 26 is such that the force exerted by the spring itself on theobturator 24 is less than the resultant of the positive and negative pressures acting on themembrane 28, so that theobturator 24 is separated from theend 20a of thesleeve 20, as shown in Figure 2, and the pump is thus able to suck in water from the bath through the sleeve itself. Once the hydromassage bath has been completed, operation of the pump is stopped so that theobturator 24 of theclosing member 22, owing to the elastic recovery of thespring 26, comes into engagement again with theend 20a of thesleeve 20, definitively interrupting the flow of water entering thesleeve 20. - Figures 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.
- In particular, Figures 3 and 4 show a
nozzle 50 similar to the preceding nozzle, in which communication between thechamber 30 and thesleeve 20 is established not by means of the holes provided in the obturator, but by means of acommunication duct 52 provided in thebody 12 of thenozzle 50. More precisely, thecommunication duct 52 has afirst end 52a communicating with thechamber 30 and asecond end 52b communicating with thesleeve 20. - The
communication duct 52 has inside it, in the vicinity of theend 52b, a shut-off valve, denoted in its entirety by 54, which is provided with anobturator 56 and actuated by anelectromagnetic device 58. - The
electromagnetic device 58 comprises anelectric winding 60 with housed inside it amovable core 62 rigid with theobturator 56 of the shut-offvalve 54. Moreover, theobturator 56 is retained in the closed position (see Figure 3) by means of aspring 64 arranged around themovable core 62 and located between the obturator itself and theelectric winding 60. - By supplying an electric current of predetermined intensity to the
electric winding 60, themovable core 62 is drawn inside theelectric winding 60 and theobturator 56 of the shut-offvalve 54 is displaced against the action exerted by thespring 64, thereby opening up thecommunication duct 52, as illustrated in Figure 4. - 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 theelectromagnetic device 58 can only be interrupted when the vacuum generated by the pump has caused opening of theclosing member 22 in the manner already indicated above, said condition being illustrated in Figure 4. - Obviously, it will be possible to keep the
electromagnetic device 58 energized for the entire duration of operation of the circulation pump such that the water contained inside thenozzle 50 is sucked both through theclosing member 22 and through thecommunication duct 52. - Figures 5, 6, 7 and 8 show a further embodiment which consists in a
nozzle 100 similar to thenozzle 11 of Figures 1 and 2. Thenozzle 100 is provided with adischarge 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 anobturator 106 associated with adischarge hole 108 formed in the bottom portion of thesleeve 20. Theobturator 106 is fixed to alever element 110 having oneend 110a hinged to thesleeve 20, while theopposite end 110b is provided with afloat 112. - When there is no water inside the bath and hence also inside the
suction nozzle 100, thelever element 110 lies on the bottom of thebody 12 of thenozzle 100 and theobturator 106 is located at distance from thedischarge hole 108 of the sleeve 20 (see Figure 7), thus allowing the water contained inside the suction duct to flow out. Vice versa, during filling of the bath, thenozzle 100 is filled with water and thefloat 112 rises, raising thelever 110 so that theobturator 106 closes off thedischarge 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. - It can be noted, moreover, that the
discharge valve 104 has associated with it anelectromagnetic device 114 having the function of lowering, when activated, thelever element 110 with the nozzle full of water. - More precisely, the
electromagnetic device 114 comprises an element in the form of aferromagnetic plate 116 fixed onto thelever element 110, in an intermediate position between thefloat 112 and theobturator 106 and anelectromagnet 118 arranged outside the underneath part of thebody 12 of thenozzle 100 and facing theferromagnetic plate 116. - By supplying the
electromagnet 118 with a predetermined excitation current, theferromagnetic plate 116 is attracted downwards by it, thus causing lowering of thelever element 110 against the hydrostatic thrust acting on thefloat 112, when the bath and hence thenozzle 100 are filled with water, which would tend to keep thelever element 110 raised. - Excitation of the electromagnetic 118 is maintained for a predetermined period of time substantially corresponding to the triggering time of the suction pump.
- Finally, 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 mode of operation of the
nozzle 100 is now described below. - In the condition where there is no water inside the bath, the
obturator 24 of the closingmember 22, owing to the resilient action of thespring 26, is engaged with theend 20a of thesleeve 20, and thefloat 112 of thedischarge valve 104 lies on the bottom of thebody 12 of thenozzle 100 so that itsobturator 106 is in the open position (see Figure 7). This condition occurs as soon as the bath has been emptied and opening of theobturator 106 allows emptying of the hydromassage system. - During filling of the bath, as soon as the water contained in the bath reaches the nozzle, it enters inside the latter so that the
float 112 is raised, causing theobturator 106 of thedischarge valve 104 to close, thus preventing the water entering into the suction duct. - At this point, two choices are possible:
- 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 thedischarge valve 104 comes to rest on the bottom of thebody 12 of thenozzle 100 and theobturator 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 theferromagnetic plate 116, causing theobturator 106 to be lowered and hence allowing the water contained in thebody 12 of thenozzle 100 to enter into thesleeve 20 and hence fill the suction duct. At this point the pump is started, creating a vacuum upstream thereof, i.e. inside thesleeve 20 and inside thechamber 30. - Consequently, as described above, the
obturator 24 moves away from theend 20a of thesleeve 20 and the pump is thus able to suck up water from the bath through the sleeve itself. At this point, the flow of the excitation current inside theelectromagnet 118 is interrupted so that theferromagnetic plate 116 is no longer attracted by the electromagnet itself and hence thefloat 112 is raised, closing theobturator 106 of thedischarge valve 104. - Once the hydromassage bath has been completed, operation of the pump is stopped, so that the
obturator 24 of the closingmember 22, owing to the elastic recovery of thespring 26, comes back into engagement with theend 20a of thesleeve 20, definitively interrupting the flow of water entering into thesleeve 20. The bath is then emptied and when the level of the water falls below thenozzle 100, thefloat 112 will come to rest on the bottom of thebody 12 so that theobturator 106 opens, allowing emptying of the hydromassage system. - Alternatively, the flow of the excitation current of the
electromagnet 158 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 theobturator 24 of the closingmember 22 and through theobturator 106 of thedischarge valve 104. - Figures 9 and 10 illustrate a variant of the
nozzle 100 according to Figures 5 to 7 and more precisely anozzle 150 in which communication between the interior of thebody 12 of thenozzle 150 and thesleeve 20 is established by means of a through-hole 152 formed in thesleeve 20; the through-hole 152 has, moreover, associated with it a closingvalve 154 provided with anobturator 156 and actuated by anelectromagnetic device 158. - The
electromagnetic device 158 comprises an electric winding 160 which has housed inside it amovable core 162 rigid with theobturator 156 of the closingvalve 154. Moreover theobturator 156 is retained in the closed position (see Figure 9) by means of anannular spring washer 164 which is provided with a central and circular opening inside which theobturator 156 is fixed and which has an external peripheral edge rigid with the electric winding 160. - 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 theobturator 156 of the closingvalve 154 is displaced against the action exerted by thespring washer 164, thus opening the through-hole 152, as illustrated in Figure 10. - 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 closingmember 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. - By way of an alternative, the
electromagnetic device 158 can be kept energized for the entire duration of operation of the circulation pump such that the water contained in thenozzle 150 is sucked both through the closingmember 22 and across the through-hole 152. - Finally, Figures 11 to 13 show a further variant of the invention which consists in a
nozzle 200, similar to thenozzle 100 of Figures 5 to 7, provided with a control device, denoted in its entirety by thereference number 202, which is designed to give consent for activation of the circulation pump. - From Figure 12 it can be noted that the
device 202 comprises aduct 204 arranged inside thebody 12 of thenozzle 200 and formed by two horizontalrectilinear sections rectilinear section 206 extends perpendicularly and centrally from a grille-type cover 210 located in the vicinity of thewall 18 of the bath by way of a protection for the nozzle. Thefirst section 206 penetrates inside thesleeve 20 and joins the secondrectilinear section 208 which extends coaxially with respect to the sleeve itself, passing through theobturator 24 of the closingmember 22 and terminating in the region of thecover 27. - The
obturator 24 is provided with atubular element 206 inside which thesecond section 208 passes, theobturator 24 sliding on the latter when it moves from the closed position to the open position and vice versa, ensuring at the same the water-tightness of thechamber 30. - From Figure 13 it can be noted that the
second section 208 is connected, by means of aduct 212 located outside thebody 12 of the nozzle, to apneumatic member 214 designed to detect when the water inside the bath has reached and exceeded a predetermined level, certainly higher than that of theduct 204. Themember 214 comprises acasing 216 which has arranged inside it an elasticallydeformable membrane 218, the edge of which is sealingly fixed to the internal wall of thecasing 216, thus defining achamber 220 connected to theduct 212 and a sealedchamber 222. Thecentral part 223 of themembrane 218 is substantially flat and made of rigid material, for example plastic material. - The
second chamber 222 has aspring 224 arranged inside it, between thecentral part 223 of themembrane 218 and thewall 216a of thecasing 216 facing themembrane 218, said spring defining a rest position for themembrane 218 when there is no water in the bath. When the water level inside the bath reaches the aforementioned predetermined level, theducts chamber 220, so that the air contained in this chamber is compressed and themembrane 218 moves towards thewall 216a against the opposing action of thespring 224. - The
membrane 218 has associated with it amagnet 226, while thewall 216a is provided externally with a sensor 228 (for example a proximity switch) for detecting the presence of magnet means and designed to allow activation of the circulation pump only when the bath is filled with a predetermined quantity of water, as explained in detail hereinbelow. - In the example of embodiment considered, this sensor is of the dry-reed type, known per se and hence not illustrated in detail, and is suitably connected to a consent control unit (not shown) which is in turn connected to the motor operating the circulation pump.
- When the
sensor 228 is in the condition shown in Figure 13, i.e. where there is no water present both in the bath and hence in thenozzle 200, it is inactive and, by means of the control unit, prevents electric power being supplied to the pump. - When, on the other hand, the water level in the bath reaches a predetermined level, the
membrane 218 and hence themagnet 226 move towards thewall 216a such that thesensor 228 detects the presence of themagnet 226 and sends a suitable signal to the consent control unit in order to supply the pump with electric power. - In this way it is possible to start the hydromassage cycle without having to check whether there is water present in the bath and moreover preventing possible damage to the pump even if it is operated under dry conditions.
- It is understood, however, that the
device 202 may also be used for the nozzles described in relation to Figures 1 to 4 and 8 to 10. - Finally it is obvious that any conceptually or functionally equivalent variation and/or modification falls within the protective scope of the invention.
Claims (20)
- Suction nozzle for hydromassage baths, designed to be connected to a circulation pump via a suction duct (20), which is provided with a valve (104) designed to connect up the interior of the nozzle (11,50,100,150) with said duct (20), said valve (104) comprising a lever element (110), freely oscillating in a vertical plane, hinged at one end (110a) with the body (12) of the nozzle and provided at the other end (110b) with a float (112) displaceable between a lowered position, with simultaneous opening of the valve (104) when the nozzle is empty, and a raised position, with simultaneous closing of the valve (104) when the nozzle is full of water, said suction duct (20) being provided at its inner end (20a) with a closing member (22) designed to intercept the flow of water which flows from the nozzle (11, 50) into the suction duct (20), said closing member (22) comprising an obturator (24) retained in the closed position by resilient means (26) and further comprising a membrane (28) located between the obturator (24) and the wall (12a) of the nozzle (11, 50) facing the obturator (24) so that said obturator (24), said wall (12) and said membrane (28) define a chamber, characterized in that said nozzle (11, 50) is provided with at least one passage (32, 52) designed to connect up the interior of said chamber (30) with the suction duct (20) such that, via said passage (32, 52), the vacuum generated by the pump is transmitted inside said chamber (30) in order to open said closing member (22).
- Nozzle according to Claim 1, characterized in that said membrane (28) has an opening inside which the obturator (24) is sealingly fixed and a peripheral edge sealingly fixed to the wall (12a) of the body (12) of the nozzle (11, 50).
- Nozzle according to Claim 2, characterized in that the peripheral edge of the membrane (28) is sealingly fixed between the edge of an opening (29) formed in the wall (12a) of the body (12) and the edge of a cover (27) designed to cover the opening itself.
- Nozzle according to Claim 3, characterized in that said resilient means (26) are located between the obturator (26) and the cover (27).
- Nozzle according to any one of the preceding claims, characterized in that said at least one passage consists in at least one hole (32) formed in the obturator (24).
- Nozzle according to any one of Claims 1 to 4, characterized in that said passage (52) is provided with a shut-off valve (54).
- Nozzle according to Claim 6, characterized in that said shut-off valve (54) is operated by an electromagnetic device (58) in opposition to the action of resilient means (64).
- Nozzle according to any one of the preceding claims, characterized in that it comprises controlled-opening means (104,154) for connecting up the interior of the nozzle (100,150) with the suction duct (20).
- Nozzle according to Claim 8, characterized in that it comprises an electromagnetic device (114) for the displacement of the float (112) into said lowered position when the nozzle (100) is full of water with controlled opening of the valve (104) and consequent introduction of water into said suction duct (20) in order to favour triggering of the circulation pump.
- Nozzle according to Claim 9, characterized in that said electromagnetic device (114) comprises a ferromagnetic element (116) mounted on the lever element (110) and facing an electromagnet (118) located outside the body (12) of the nozzle (100), excitation of said electromagnet (118) with the nozzle (100) full of water, causing attraction of said ferromagnetic element (116) with consequent displacement of the float (112) into the lowered position in opposition to the action of the hydrostatic thrust exerted by the water thereon.
- Nozzle according to Claim 10, characterized in that said valve (104) comprises an obturator (106) and said ferromagnetic element (116) is mounted in an intermediate position between the flaot (112) and the obturator (106) of the valve (104).
- Nozzle according to any one of Claims 9 to 11, characterized in that the electric power supply line of the circulation pump contains a delay component designed to allow energization of the said pump only after a predetermined period of time from the start of excitation of the electromagnet (118).
- Nozzle according to any one of Claims 9 to 12, characterized in that the electromagnet (118) is excited for a period of time of predetermined duration corresponding substantially to the triggering time of the circulation pump.
- Nozzle according to any one of Claims 9 to 12, characterized in that the electromagnet (118) is kept excited for the entire period of operation of the circulation pump.
- Nozzle according to Claim 8, characterized in that said means for connecting up the interior of the nozzle (150) with the suction duct (20) consist in a through-hole (152) formed in the sleeve (20) and associated with a closing valve (154).
- Nozzle according to Claim 15, characterized in that said closing valve (154) is operated by an electromagnetic device (158) opposing the action of resilient means (164).
- Nozzle according to any one of the preceding claims, characterized in that it comprises a control device (202) comprising an elastically deformable means (218) subject to the pressure generated by the water contained in the bath when it reaches a predetermined level and to an opposing counter-pressure exerted by resilient means (224), said elastically deformable means (218) being provided with magnetic means (226) interacting with sensor means (228) designed to detect the presence of said magnetic means (226) and contained in the electric circuit controlling operation of the circulation pump.
- Nozzle according to the preceding claim, characterized in that said control device (202) comprises a casing (216) which has arranged inside it said elastically deformable means which consist in a membrane (218), the edge of which is sealingly fixed to the internal wall of the casing (216) thus defining a chamber (220) communicating with the bath by means of ducts (204,212) provided inside the nozzle (200) and a sealed chamber (222) inside which said resilient means (224) are located, between the membrane (218) and the wall (216a) of the casing (216) facing it, said membrane (218) having associated with it said magnetic means (226) while the wall (216a) is provided externally with said sensor means (228) which, when there is no water inside the bath tub, remain inactive and do not allow activation of the pump, whereas, when the water level in the bath reaches said predetermined level, thus displacing the membrane (218) and said magnetic means (226) towards the wall (216a), they are activated, thus allowing start-up of the pump.
- Nozzle according to Claim 18, characterized in that said duct (204) is arranged inside the body (12) of the nozzle (200) and is formed by two horizontal rectilinear sections (206) and (208) arranged perpendicularly with respect to one another, the first section (206) extending perpendicularly and centrally from a grille-type cover (210) located in the vicinity of the wall (18) of the bath tub by way of protection for the nozzle, penetrating inside the sleeve (20) and joining the second section (208) which extends coaxially with respect to the sleeve itself, passing through the obturator (24) of the closing member (22) and terminating in the region of the cover (27) where it is connected, by means of a duct (212), to the chamber (220).
- Nozzle according to Claim 19, characterized in that the obturator (24) is provided with a tubular element (206) inside which the second section (208) passes, the obturator (24) sliding on the latter when it moves from the closed position to the open position and vice versa, ensuring at the same time the water-tightness of the chamber (30).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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IT95TV000028A IT1279277B1 (en) | 1995-03-09 | 1995-03-09 | SUCTION NOZZLE FOR WHIRLPOOL |
ITTV950028 | 1995-03-09 |
Publications (3)
Publication Number | Publication Date |
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EP0730857A2 true EP0730857A2 (en) | 1996-09-11 |
EP0730857A3 EP0730857A3 (en) | 1997-02-05 |
EP0730857B1 EP0730857B1 (en) | 2002-01-16 |
Family
ID=11419610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96200602A Expired - Lifetime EP0730857B1 (en) | 1995-03-09 | 1996-03-05 | Suction nozzle for hydromassage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0730857B1 (en) |
DE (1) | DE69618489T2 (en) |
ES (1) | ES2171602T3 (en) |
IT (1) | IT1279277B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3785690A1 (en) * | 2019-08-29 | 2021-03-03 | Fujian Xihe Sanitary Ware Technology Co., Ltd. | Suction assembly for whirlpool bathtub |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526360A (en) * | 1968-10-18 | 1970-09-01 | Itt | Main line valve with pilot regulator |
EP0215514A2 (en) * | 1985-09-17 | 1987-03-25 | TEUCO GUZZINI S.r.l. | Bathtub with improved hydromassage system |
DE3717508A1 (en) * | 1987-05-23 | 1988-12-01 | Schuessler Guenter | Electromagnetic closure |
EP0422305A1 (en) * | 1989-10-11 | 1991-04-17 | Zip Heaters (Aust.) Pty Limited | Float chamber |
US5167041A (en) * | 1990-06-20 | 1992-12-01 | Kdi American Products, Inc. | Suction fitting with pump control device |
-
1995
- 1995-03-09 IT IT95TV000028A patent/IT1279277B1/en active IP Right Grant
-
1996
- 1996-03-05 ES ES96200602T patent/ES2171602T3/en not_active Expired - Lifetime
- 1996-03-05 DE DE69618489T patent/DE69618489T2/en not_active Expired - Lifetime
- 1996-03-05 EP EP96200602A patent/EP0730857B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3526360A (en) * | 1968-10-18 | 1970-09-01 | Itt | Main line valve with pilot regulator |
EP0215514A2 (en) * | 1985-09-17 | 1987-03-25 | TEUCO GUZZINI S.r.l. | Bathtub with improved hydromassage system |
DE3717508A1 (en) * | 1987-05-23 | 1988-12-01 | Schuessler Guenter | Electromagnetic closure |
EP0422305A1 (en) * | 1989-10-11 | 1991-04-17 | Zip Heaters (Aust.) Pty Limited | Float chamber |
US5167041A (en) * | 1990-06-20 | 1992-12-01 | Kdi American Products, Inc. | Suction fitting with pump control device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3785690A1 (en) * | 2019-08-29 | 2021-03-03 | Fujian Xihe Sanitary Ware Technology Co., Ltd. | Suction assembly for whirlpool bathtub |
Also Published As
Publication number | Publication date |
---|---|
EP0730857B1 (en) | 2002-01-16 |
EP0730857A3 (en) | 1997-02-05 |
ITTV950028A1 (en) | 1996-09-09 |
DE69618489D1 (en) | 2002-02-21 |
DE69618489T2 (en) | 2002-08-22 |
IT1279277B1 (en) | 1997-12-09 |
ES2171602T3 (en) | 2002-09-16 |
ITTV950028A0 (en) | 1995-03-09 |
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