EP0169589A1 - Automatic cleaning apparatus for an under-water surface - Google Patents

Automatic cleaning apparatus for an under-water surface Download PDF

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Publication number
EP0169589A1
EP0169589A1 EP85200932A EP85200932A EP0169589A1 EP 0169589 A1 EP0169589 A1 EP 0169589A1 EP 85200932 A EP85200932 A EP 85200932A EP 85200932 A EP85200932 A EP 85200932A EP 0169589 A1 EP0169589 A1 EP 0169589A1
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EP
European Patent Office
Prior art keywords
cleaning device
finger
pump
motor
filtration chamber
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EP85200932A
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German (de)
French (fr)
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EP0169589B1 (en
Inventor
Frédéric Puech
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Individual
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Individual
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Priority to AT85200932T priority Critical patent/ATE52563T1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners

Definitions

  • the invention relates to an apparatus for automatically cleaning a surface immersed in a liquid, in particular the walls and bottom of a swimming pool. It relates to a device of the type comprising an electric motor for driving the device along the submerged surface and a filtration chamber associated with an electric pump integrated in the device to generate a circulation of liquid in said filtration chamber.
  • Such an apparatus has several qualities, in particular that of having its own filter which can be removed and cleaned easily (which avoids clogging the filter of the technical installation of the swimming pool).
  • the random reversals of the direction of progression of the device were unable to allow a complete scan of the submerged surface.
  • the device tends to remain at the level of the water line or to stop in angles and its effectiveness is significantly affected; on the contrary, during sequences where this duration between two inversions is reduced, the device does not make complete runs of the length or width of the pool and tends to remain at the bottom of it in a limited area.
  • the random program can, if necessary, be designed to reduce the influence of the above-mentioned faults in the case of a pool of given dimensions and shape, but the device is then ill-suited to other types. swimming pools, for which these defects remain and can even be accentuated.
  • a random generator is a relatively expensive organ which strikes the cost price of the device.
  • the present invention proposes to remedy the aforementioned faults of cleaning devices of the type mentioned above comprising an electric drive motor and an on-board electric pump.
  • An object of the invention is in particular to provide an improved cleaning device which is capable of sweeping, almost uniformly and over all their surfaces, the walls and the bottom of a swimming pool with a view to ensuring complete cleaning of this one.
  • Another objective of the invention is to allow the user to make adjustments as a function of the swimming pool aimed at in order to obtain the desired optimum cleaning; the invention aims in particular to provide an apparatus giving great flexibility, either to be adapted to the dimensions of a swimming pool with a view to ensuring uniform cleaning thereof, or to be temporarily specialized for carrying out cleaning according to need (cleaning of the water line or cleaning the bottom of the pit).
  • Another objective is to authorize, if necessary, precise and easy control of the trajectory followed by the aircraft.
  • Another objective of the invention is to eliminate the need to provide a random generator, in order to reduce the cost of the electronic circuits equipping the device.
  • the automatic cleaning apparatus targeted by the invention comprises a hollow body, members for driving said body on the surface to be cleaned, a reversible electric motor arranged in the body to transmit a rotational movement to said members. drive, electrical supply means of said motor comprising means for sequentially reversing the direction of the electric current, a filtration chamber located inside the body, a liquid inlet to the filtration chamber located at the base of the body, a pump driven by an electric motor to bring the liquid to circulate in the filtration chamber, and an outlet for the liquid discharged by the pump, arranged opposite the base of the body;
  • the electric motor of the pump is associated with electrical supply means comprising sequential interruption means, capable of generating cuts of said electrical supply at predetermined or random frequency for predetermined or random cut-off times.
  • the abovementioned sequential interrupting means are adjustable delay means adapted to generate a predetermined cutoff frequency, in particular in a range from 10 to 360 cuts / hour, and a predetermined duration for each cut, included in especially in a range from 1 to 60 seconds.
  • the reversing means of the drive motor are preferably adapted to generate a predetermined reversing frequency of said motor, adjustable in particular between 5 and 360 reversals / hour.
  • the combination of periodic stops of the pump and periodic reversals of the drive motor makes it possible, as will be understood better below, to eliminate the presence of random generator: the setting of the pump cut-off frequencies and the setting inversion frequencies of the drive motor give each user the ability to adapt the trajectory of the device to the dimensions and shape of its pool to obtain either a roughly uniform cleaning thereof, or specialized work such as cleaning the water line or cleaning the bottom.
  • the apparatus comprises at least one movable finger arranged on one side of the body in order to be able to have two positions, a passive position or said finger is set back relative to the plane of contact of the organs training with the submerged surface, and an active position where said finger comes to or exceeds this plane, said finger being associated with remote control means adapted to cause its displacement from one position to the other.
  • two movable fingers will be arranged symmetrically with respect to the longitudinal axial plane of the body; these independently controlled fingers allow the user to rotate the device in one direction or the other, acting, when they come in the active position, as a pivoting and braking member around which the device rotates naturally through the effect of his training.
  • the device shown by way of example in the figures is composed of two parts, one 1 immersed, constituting the device itself ( Figures 1, 2, 3) the other formed by means of power supply to said device which are housed in a box 3 located outside the liquid at the edge of the swimming pool ( Figures 4, 5 and 6).
  • the device 1 and its supply means are connected by sheathed electrical conductors which form a waterproof cable that the 'can be seen in 4 in Figures 1 and 6; the cable 4 has an appropriate length to allow the device 1 to access all the areas of the immersed surface of the pool.
  • the device 1 (FIGS. 1, 2 and 3) consists of a body 5 open at its base, the latter being equipped with a closure plate 6 provided with inlets 6a for sucking the liquid in the vicinity of the surface to clean ; these inlets are preferably provided with valves preventing the exit of impurities or residues, when the device is no longer under suction.
  • the body 5 is provided at its upper part with a discharge outlet 7, located opposite the base of said body so as to discharge the liquid in a direction orthogonal thereto.
  • the body 5 is internally equipped with a sealed casing 8 which is housed therein along its transverse axis as shown in the figures.
  • This casing comprises externally, on its transverse walls and under its bottom, ribs such as 9.
  • the body 5 forms around the casing 8 a filtration chamber 5a equipped with a flexible filtration pocket 10 which is fixed to the base of the body around the periphery of the plate 6.
  • This pocket is formed by a membrane in one ma flexible mesh or knitted material of a type known per se; under the effect of the suction it rests against the ribs 9 of the casing 8 which keep it at a distance from the latter, so that the filtration takes place through almost the entire surface of the pocket 10 .
  • the casing 8 contains, on the one hand, an electric pump motor 11 disposed in a central zone thereof, on the other hand, a reversible drive motor 12 disposed in the eccentric position transversely to this central area.
  • the pump motor 11 drives a propeller or axial impeller 14 through a shaft 13, which is disposed in a sleeve 15 for guiding the flow, inserted in the outlet 7.
  • the drive motor 12 drives by a shaft 16 a transmission wheel 17 which is connected by rubberized belts 18 to two wheels such as 19, arranged at the two longitudinal ends of the body. Each of these wheels drives a transverse cylindrical roller 20 covered by a flexible sleeve of cellular polyurethane foam 21.
  • the two sleeves 21 are arranged to come into contact with the immersed surface and fulfill the double function of generating a progression of the device in one direction or the other depending on the direction of rotation of the motor 12, and to ensure a brushing of the surface tending to detach the impurities or deposits therefrom, which are then sucked into the filtration chamber 5a.
  • the windings of the pump motor 11 and those of the drive motor 12 are supplied with low voltage (in particular 12 or 24 volts) by two pairs of sheathed conductors grouped in the waterproof cable 4 already mentioned.
  • a float 22 formed by a hollow cylinder is articulated above the body 5 on the sides of the latter in a transverse plane.
  • This float that can. contain a moving weight such as a lead ball, cooperates with the off-center of the motor 12 to unbalance the device when it is at the level of the water line; it thus conditions a lateral movement of the device along this line.
  • the float 22 also serves to grip the apparatus when manipulations.
  • the body 5 carries on either side two electromagnets 23 and 24 which are fixed externally in the vicinity of the base thereof; these electromagnets are arranged in the transverse plane of symmetry so that the one which is located on the side of the transmission means (17, 18, 19), comes to be housed below the transmission wheel 17.
  • Flanges such that 25 are fixed on either side of the body to protect these electro-magnets and the means of transmission.
  • Each electromagnet 23 or 24, the winding of which is sealed in a block of resin, is provided with a magnetic core which is in the form of a vertical direction finger 26 provided at the top with an enlarged head 26a and in the lower part of a non-slip heel 26b; a spring 27 biases the finger 26 upwards and, in the absence of excitation, maintains it in a passive high position, in which its .standard 26b is located set back relative to the plane passing through the low generatrices of the sleeves 21 (contact plane with the submerged surface).
  • Each electromagnet is arranged so that, when its winding is excited, the finger undergoes a downward movement which brings it into an active low position in which its lower heel 26b is located projecting from the contact plane cited above.
  • the apparatus pivots around the finger and the user can cause said apparatus to veer from a precise determined angle by adjusting the excitation time of the elec . - three-magnet considered.
  • the windings of the electromagnets 23 and 24 are electrically supplied with low voltage by four sheathed conductors which are either integrated into the cable 4 (device. Originally comprising said electromagnets), / or combined in another cable attached to the first by conventional attachment means (optional guidance, added later).
  • FIG. 4 is a block diagram of the electrical connections of the device.
  • This figure at 28 shows the two conductors by which the motor pump 11 is supplied, at 29 the two conductors by which the drive motor 12 is supplied, at 30 the two conductors by which the electromagnet 23 is excited and at 31 the two conductors by which the electromagnet 24 is excited.
  • the conductors 28 and 29 which supply the pump motor 11 and the drive motor 12 are connected to a power supply unit 33 which receives the low voltage and an example of which will be described later with reference to FIG. 5.
  • the conductors 30 and 31 of the electromagnets excitation are connected to the low voltage through, on the one hand, a voltage adapter 34 of conventional type, on the other hand, a mobile control box 35 that the user can take in hand to guide the device by appropriately exciting said electromagnets.
  • This control unit 35 is connected to the box 3 by a cable 36 which, in addition to the excitation control conductors, contains conductors for manual reversal of the direction of the drive motor 12; these conductors are connected to the power supply 33 and, as will be seen below, the action of the manual inversion button of the housing 35 is validated when the block 33 is placed in the state corresponding to manual operation.
  • the supply circuit attached to the pump motor 11 includes two comparators 41 and 42 which re çen the one hand, the reference voltage differences generated by a voltage divider 43, on the other hand, the adjustable voltages from the potentiometers 38 and 39. These p o - tentioperson allow charging and discharging a capacitor polarized 44 and are themselves polarized by diodes 45.
  • the negative voltage from the potentiometer 39 and from the discharge of the capacitor 44 is compared in the comparator 42 to the reference voltage and causes a flip-flop 46 toggled when it reaches this reference voltage.
  • the pump motor which was stopped during the discharge of the capacitor 44 is supplied by the effect of the control signal from the flip-flop 46: this signal is amplified in an output stage 47 and is delivered to an interface 48 voltage adaptation when the switch 37 is in the automatic position; the interface 48 delivers a control signal adapted to the power stage 49 (relay or other) which supplies the pump 11.
  • the capacitor 44 is recharged through the potentiometer 38; when the charging voltage becomes equal to the reference voltage of the comparator 41, the rocker is again switched and delivers a signal causing the pump motor 11 to stop and the cycle can be repeated.
  • the supply circuit attached to the drive motor 12 is similar to the previous one, with the following differences:
  • the signal is divided by 2 in a divider 52 and is sent with the initial signal to logic gates 53 and 54 which operate in alternation, with a delay time between two opposite alternations.
  • these alternations generate positive or negative power for the motor 12.
  • the resistor 50 can be adjusted according to the parameters of the other components so that the successive edges of two successive opposite half-waves are offset by a time of the order of 3 "; this delay allows the motor to stop naturally at each inversion and start again in the opposite direction without risk of deterioration.
  • the potentiometer 40 can be chosen as a function of the parameters of the other components to obtain a range of adjustment of the inversion frequency of between 5 and 360 inversions / hours.
  • the device When the pump motor 11 is switched off, the device is no longer applied against the submerged surface by reaction of the outgoing flow through the outlet 7; if it is on a flat surface (pool bottom), the slightest external action changes its trajectory and in particular the slight pull of cable 4 causes it to deviate (this cut with deviation from trajectory is shown diagrammatically in P 1 at figure 7). If, on the contrary, the appliance is on a vertical or very inclined surface (pool walls); it slides along it until it comes into contact with the bottom (point P 2 in Figure 7).
  • the parameter settings are as follows:
  • the pump cut-off time is expected to be longer in the case of a large pool, to give the device time to slide completely along the vertical walls if it is at the water line (this pool being assumed to be deeper than the small pool).
  • the cut-off time setting determines the amplitude of the angular deviation made at each cut.
  • the inversion frequency is expected to be low enough so that the device has time to cover the greatest length without retracing its steps.
  • the pump cut-off frequency is expected to be higher so that the device slides along the vertical walls shortly after reaching the water line. If the device traverses the pool in the direction of the length, an intermediate cut (P 1 ) causes a deviation of its trajectory.
  • P 1 is the symbol of a cut in the pump and I that of a reversal of the direction of progression).
  • FIG. 8 we have diagrammed in Figure 8 the trajectory of a device set to clean the bottom of a swimming pool pit.
  • the inversions are adjusted at a frequency such that the path of the device between two inversions is of the order of the length of the pit.
  • the pump cutoff frequency is set to a higher value so as to cause deviations from frequent trajectories; in addition, the duration of the cuts is also provided for at a higher value to generate greater deviations.
  • Figure 9 illustrates the opposite case where the user wishes to clean more particularly the vertical walls and the water line.
  • the inversion frequency is provided at a very low value (5 to 10 / hour), the inversion being essentially intended to avoid any possible jamming of the device in a corner.
  • the cut-off frequency of the pump is on the contrary adjusted to a much higher value depending on the height of the vertical walls to be cleaned, in order to lead to a trajectory of the type of that of FIG. 9. After the device has fallen, -this goes up along the wall, arrives at the water line, moves transversely under the effect of the imbalance already mentioned, until a new cut of pump makes it fall.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pinball Game Machines (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Cleaning In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1. Automatic cleaning apparatus for an under-water surface, comprising a hollow body (5), devices for driving said body on the surface to be cleaned (21), a reversible electric motor (12) provided within the body with a view to transmitting a rotary motion to said driving devices, means for feeding electric current to said motor comprising means for sequentially reversing the direction of the electric current, a filtration chamber (5a) situated within the body, an inlet (6a) for liquid leading into the filtration chamber situated at the bottom of the body, a pump (14) driven by an electric motor (11) so as to cause the liquid to circulate within the filtration chamber, and an outlet (7) for the liquid delivered by the pump, situated opposite the base of the body, said cleaning apparatus being characterised in that the electric motor of the pump (11) is associated with means for electric feeding (33) comprising means for sequential interruption, capable of giving rise to a predetermined or random cut-out frequency of said electric feed for the duration of predetermined or random cut-out periods.

Description

L'invention concerne un appareil de nettoyage automatique d'une surface immergée dans un liquide, en particulier parois et fond d'une piscine. Elle vise un appareil du type comprenant un moteur électrique pour entrainer l'appareil le long de la surface immergée et une chambre de filtration associée à une pompe électrique intégrée dans l'appareil pour engendrer une circulation de liquide dans ladite chambre de filtration.The invention relates to an apparatus for automatically cleaning a surface immersed in a liquid, in particular the walls and bottom of a swimming pool. It relates to a device of the type comprising an electric motor for driving the device along the submerged surface and a filtration chamber associated with an electric pump integrated in the device to generate a circulation of liquid in said filtration chamber.

Un appareil de ce type est en particulier décrit dans le brevet US n° 4168557 ; pour tenter d'assurer un balayage complet du fond et des parois de la piscine, le moteur électrique d'entrainement est réversible et commandé par un générateur d'impulsions aléatoires qui engendre à fréquence aléatoire des inversions du sens du courant d'alimentation de ce moteur électrique.An apparatus of this type is in particular described in US Patent No. 4,168,557; to try to ensure a complete sweep of the bottom and the walls of the swimming pool, the electric drive motor is reversible and controlled by a generator of random pulses which generates at random frequency reversals of the direction of the supply current of this electric motor.

Un tel appareil possède plusieurs qualités, en particulier celle de disposer de son propre filtre qui peut être retiré et nettoyé aisément (ce qui évite de colmater le filtre de l'installation technique de la piscine). Toutefois il a été constaté que les inversions aléatoires du sens de progression de l'appareil étaient inaptes à permettre un balayage complet de la surface immergée. Pendant les séquences où la durée entre deux inversions est longue par rapport au temps de parcours de la longueur ou de la largeur de la piscine, l'appareil a tendance à se maintenir au niveau de la ligne d'eau ou à s'immobiliser dans les angles et son efficacité en est notablement affectée ; au contraire pendant les séquences où cette durée entre deux inversions est réduire, l'appareil n'effectue pas des parcours complets de la longueur ou de la largeur de la piscine et a tendance à demeurer au fond de celle-ci dans une zone limitée. Il est à noter que le programme aléatoire peut le cas échéant être conçu pour réduire l'influence des défauts sus-évoqués dans le cas d'une piscine de dimensions et de forme données mais l'appareil est alors mal adapté à d'autres types de piscines, pour lesquels ces défauts subsistent et peuvent même être accentués. En outre un générateur de hasard est un organe relativement onéreux qui grève le prix de revient de l'appareil.Such an apparatus has several qualities, in particular that of having its own filter which can be removed and cleaned easily (which avoids clogging the filter of the technical installation of the swimming pool). However, it was found that the random reversals of the direction of progression of the device were unable to allow a complete scan of the submerged surface. During the sequences where the duration between two inversions is long compared to the travel time of the length or the width of the swimming pool, the device tends to remain at the level of the water line or to stop in angles and its effectiveness is significantly affected; on the contrary, during sequences where this duration between two inversions is reduced, the device does not make complete runs of the length or width of the pool and tends to remain at the bottom of it in a limited area. It should be noted that the random program can, if necessary, be designed to reduce the influence of the above-mentioned faults in the case of a pool of given dimensions and shape, but the device is then ill-suited to other types. swimming pools, for which these defects remain and can even be accentuated. In addition, a random generator is a relatively expensive organ which strikes the cost price of the device.

Il est à remarquer, par ailleurs, que dans ce type d'appareils,l'utilisateur n'a aucune possibilité d'agir sur la trajectoire de l'appareil eten pratique,les utilisateurs tentent d'amener les appareils vers les zones non nettoyées par des tractions sur le cable électrique ce qui est très incommode et très imprécis.It should be noted, moreover, that in this type of device, the user has no possibility of acting on the trajectory of the device and in practice, the users try to bring the devices to the uncleaned areas. by pulling on the power cable which is very inconvenient and very imprecise.

La présente invention se propose de remédier aux défauts sus-évoqués des appareils de nettoyage du type évoqué précédemment comprenant un moteur électrique d'en- trainement et une pompe électrique embarqués.The present invention proposes to remedy the aforementioned faults of cleaning devices of the type mentioned above comprising an electric drive motor and an on-board electric pump.

Un objectif de l'invention est en particulier de fournir un appareil de nettoyage perfectionné, qui soit apte à balayer à peu près uniformément et sur toutes leurs surfaces, les parois et le fond d'une piscine en vue d'assurer un nettoyage complet de celle-ci.An object of the invention is in particular to provide an improved cleaning device which is capable of sweeping, almost uniformly and over all their surfaces, the walls and the bottom of a swimming pool with a view to ensuring complete cleaning of this one.

Un autre objectif de l'invention est de permettre à l'utilisateur d'effectuer des réglages en fonction de la piscine visée en vue d'obtenir le nettoyage optimum désiré ; l'invention vise en particulier à fournir un appareil donnant une grande souplesse,soit pour être adapté aux dimensions d'une piscine en vue d'en assurer un nettoyage uniforme, soit pour être temporairement spécialisé pour effectuer un nettoyage en fonction du besoin (nettoyage de la ligne d'eau ou nettoyage du fond de la fosse).Another objective of the invention is to allow the user to make adjustments as a function of the swimming pool aimed at in order to obtain the desired optimum cleaning; the invention aims in particular to provide an apparatus giving great flexibility, either to be adapted to the dimensions of a swimming pool with a view to ensuring uniform cleaning thereof, or to be temporarily specialized for carrying out cleaning according to need (cleaning of the water line or cleaning the bottom of the pit).

Un autre objectif est d'autoriser en cas de besoin une commande précise et facile de la trajectoire suivie par l'appareil.Another objective is to authorize, if necessary, precise and easy control of the trajectory followed by the aircraft.

Un autre objectif de l'invention est de supprimer la nécessité de prévoir un générateur de hasard, en vue de réduire le coût des circuits électroniques équipant l'appareil.Another objective of the invention is to eliminate the need to provide a random generator, in order to reduce the cost of the electronic circuits equipping the device.

A cet effet, l'appareil de nettoyage automatique visé par l'invention comprend un corps creux, des organes d'entrainement dudit corps sur la surface à nettoyer, un moteur électrique réversible agencé dans le corps pour transmettre un mouvement de rotation auxdits organes d'entrainement, des moyens d'alimentation électrique dudit moteur comportant des moyens d'inversion séquentielle du sens du courant électrique, une chambre de pfiltration située à l'intérieur du corps, une entrée de liquide vers la chambre de filtration située à la base du corps, une pompe entrainée par un moteur électrique pour amener le liquide à circuler dans la chambre de filtration, et une sortie du liquide refoulé par la pompe, disposée à l'opposé de la base du corps ; selon la présente invention, le moteur électrique de la pompe est associé à des moyens d'alimentation électrique comprenant des moyens d'interruption séquentielle, aptes à engendrer à fréquence prédéterminée ou aléatoire des coupures de ladite alimentation électrique pour des durées de coupure prédéterminées ou aléatoires.To this end, the automatic cleaning apparatus targeted by the invention comprises a hollow body, members for driving said body on the surface to be cleaned, a reversible electric motor arranged in the body to transmit a rotational movement to said members. drive, electrical supply means of said motor comprising means for sequentially reversing the direction of the electric current, a filtration chamber located inside the body, a liquid inlet to the filtration chamber located at the base of the body, a pump driven by an electric motor to bring the liquid to circulate in the filtration chamber, and an outlet for the liquid discharged by the pump, arranged opposite the base of the body; according to the present invention, the electric motor of the pump is associated with electrical supply means comprising sequential interruption means, capable of generating cuts of said electrical supply at predetermined or random frequency for predetermined or random cut-off times. .

De préférence, les moyens d'interruption séquentielle précités sont des moyens de temporisation réglables adaptés pour engendrer une fréquence de coupure prédéterminée, comprise en particulier dans une plage allant de 10 à 360 coupures/heure, et une durée prédéterminée pour chaque coupure, comprise en particulier dans une plage allant de 1 à 60 secondes.Preferably, the abovementioned sequential interrupting means are adjustable delay means adapted to generate a predetermined cutoff frequency, in particular in a range from 10 to 360 cuts / hour, and a predetermined duration for each cut, included in especially in a range from 1 to 60 seconds.

De façon analogue, les moyens d'inversion du moteur d'entrainement sont de préférence adaptés pour engendrer une fréquence d'inversion prédéterminée dudit moteur, réglable en particulier entre 5 et 360 inversions/heure.Similarly, the reversing means of the drive motor are preferably adapted to generate a predetermined reversing frequency of said motor, adjustable in particular between 5 and 360 reversals / hour.

La combinaison des arrêts périodiques de la pompe et des inversions périodiques du moteur d'entrai- nement permet, comme on le comprendra mieux plus loin, de supprimer la présence de générateur de hasard : le réglage des fréquences de coupure de la pompe et le réglage des fréquences d'inversion du moteur d'entrainement donnent à chaque utilisateur la faculté d'adapter la trajectoire de l'appareil aux dimensions et forme de sa piscine pour obtenir soit un nettoyage à peu près uniforme de celle-ci, soit un travail spécialisé tel que nettoyage de la ligne d'eau ou nettoyage du fond.The combination of periodic stops of the pump and periodic reversals of the drive motor makes it possible, as will be understood better below, to eliminate the presence of random generator: the setting of the pump cut-off frequencies and the setting inversion frequencies of the drive motor give each user the ability to adapt the trajectory of the device to the dimensions and shape of its pool to obtain either a roughly uniform cleaning thereof, or specialized work such as cleaning the water line or cleaning the bottom.

Par ailleurs selon une autre caractéristique de l'invention, l'appareil comprend au moins un doigt mobile agencé sur un côté du corps pour pouvoir présenter deux positions, une position passive ou ledit doigt se trouve en retrait par rapport au plan de contact des organes d'entrainement avec la surface immergée, et une position active où ledit doigt vient au niveau de ce plan ou dépasse de celui-ci, ledit doigt étant associé à des moyens de tétécommande adaptés pour engendrer son déplacement d'une position vers l'autre.Furthermore according to another characteristic of the invention, the apparatus comprises at least one movable finger arranged on one side of the body in order to be able to have two positions, a passive position or said finger is set back relative to the plane of contact of the organs training with the submerged surface, and an active position where said finger comes to or exceeds this plane, said finger being associated with remote control means adapted to cause its displacement from one position to the other.

De préférence deux doigts mobiles seront disposés symétriquement par rapport au plan axial longitudinal du corps ; ces doigts commandés indépendant permettent à l'utilisateur de faire tourner l'appareil dans un sens ou dans l'autre, en faisant office, lorsqu'ils viennent en position active, d'organe de pivotement et de freinage autour duquel l'appareil tourne de façon naturelle par l'effet de son entrai- nement.Preferably two movable fingers will be arranged symmetrically with respect to the longitudinal axial plane of the body; these independently controlled fingers allow the user to rotate the device in one direction or the other, acting, when they come in the active position, as a pivoting and braking member around which the device rotates naturally through the effect of his training.

Selon un mode de réalisation particulier, les moyens de télécommande de chaque doigt comprennent :

  • . un électro-aimant pourvu d'un noyau constitué par ledit doigt, lequel est agencé de façon à se trouver dans sa position active lorsque ledit électro-aimant est excité,
  • . des:moyens d'excitation électrique dudit électro-aimant,
  • . et des moyens de rappel du doigt : vers sa position passive en l'absence d'excitation.
According to a particular embodiment, the remote control means of each finger comprise:
  • . an electromagnet provided with a core constituted by said finger, which is arranged so as to be in its active position when said electromagnet is excited,
  • . means: electrical excitation of said electromagnet,
  • . and means for recalling the finger: towards its passive position in the absence of excitation.

D'autres caractéristiques, buts et avantages de l'invention se dégageront de la description qui suit en référence aux dessins annexés lesquels présentent à titre d'exemple non limitatif un appareil conforme à l'invention et illustrent son fonctionnement ; sur ces dessins qui font partie intégrante de la présente description :

  • - la figure 1 est une vue schématique en perspective de l'appareil,
  • - la figure 2 en est une coupe par un plan longitudinal axial AA',
  • - la figure 3 en est une coupe par un plan transversal BB',
  • - la figure 4 est un schéma de principe des liaisons électriques de l'appareil,
  • - la figure 5 est un schéma bloc des moyens d'alimentation électrique du moteur de pompe et du moteur d'entrainement,
  • - la figure 6 est un schéma en perpec- pective illustrant l'appareil en fonctionnement dans une piscine,
  • - la figure 7 est un schéma illustrant le fonctionnement de l'appareil dans le cas de deux piscines de dimensions différentes,
  • - les figures 8 et 9 sont des schémas illustrant deux types de travail différents correspondant à deux réglages différents de l'appareil.
Other characteristics, aims and advantages of the invention will emerge from the description which follows with reference to the appended drawings which present by way of nonlimiting example an apparatus according to the invention and illustrate its operation; on these drawings which form an integral part of this description:
  • FIG. 1 is a schematic perspective view of the device,
  • FIG. 2 is a section through a longitudinal axial plane AA ′,
  • - Figure 3 is a section through a transverse plane BB ',
  • FIG. 4 is a block diagram of the electrical connections of the device,
  • FIG. 5 is a block diagram of the electrical supply means for the pump motor and the drive motor,
  • - Figure 6 is a perpetual diagram pective illustrating the device in operation in a swimming pool,
  • FIG. 7 is a diagram illustrating the operation of the apparatus in the case of two swimming pools of different dimensions,
  • - Figures 8 and 9 are diagrams illustrating two different types of work corresponding to two different settings of the device.

L'appareil représenté à titre d'exemple aux figures est composé de deux parties, l'une 1 immergée, constituant l'appareil proprement dit, (figures 1, 2, 3) l'autre formée par des moyens d'alimentation électrique dudit appareil qui sont logés dans un coffret 3 situé en dehors du liquide en bordure de piscine (figures 4, 5 et 6).L'appareil 1 et ses moyens d'alimentation sont reliés par des conducteurs électriques gainés qui forment un cable étanche que l'on peut apercevoir en 4 aux figures 1 et 6 ; le cable 4 présente une longueur appropriée pour permettre à l'appareil 1 d'accéder à toutes les zones de la surface immergée de la piscine.The device shown by way of example in the figures is composed of two parts, one 1 immersed, constituting the device itself (Figures 1, 2, 3) the other formed by means of power supply to said device which are housed in a box 3 located outside the liquid at the edge of the swimming pool (Figures 4, 5 and 6). The device 1 and its supply means are connected by sheathed electrical conductors which form a waterproof cable that the 'can be seen in 4 in Figures 1 and 6; the cable 4 has an appropriate length to allow the device 1 to access all the areas of the immersed surface of the pool.

L'appareil 1 (figures 1, 2 et 3) est constitué par un corps 5 ouvert à sa base, cette dernière étant équipée d'une plaque d'obturation 6 dotée d'entrées 6a d'aspiration du liquide au voisinage de la surface à nettoyer ; ces entrées sont de préférence munies de soupapes évitant la sortie des impuretés ou résidus, lorsque l'appareil n'est plus sous aspiration.The device 1 (FIGS. 1, 2 and 3) consists of a body 5 open at its base, the latter being equipped with a closure plate 6 provided with inlets 6a for sucking the liquid in the vicinity of the surface to clean ; these inlets are preferably provided with valves preventing the exit of impurities or residues, when the device is no longer under suction.

Le corps 5 est doté à sa partie supérieure d'une sortie 7 de refoulement, située à l'opposé de la base dudit corps de façon à refouler le liquide selon une direction orthogonale à celle-ci.The body 5 is provided at its upper part with a discharge outlet 7, located opposite the base of said body so as to discharge the liquid in a direction orthogonal thereto.

Le corps 5 est intérieurement équipé d'un carter étanche 8 qui est logé dans celui-ci le long de son axe transversal comme le montrent les figures. Ce carter comprend extérieurement, sur ses parois transversales et sous son fond, des nervures telles que 9.The body 5 is internally equipped with a sealed casing 8 which is housed therein along its transverse axis as shown in the figures. This casing comprises externally, on its transverse walls and under its bottom, ribs such as 9.

Le corps 5 forme autour du carter 8 une chambre de filtration 5a équipée d'une poche souple de filtration 10 qui est fixée à la base du corps sur le pourtour de la plaque 6. Cette poche est formée par une membrane en un matériau souple maillé ou tricoté de type connu en soi ; sous l'effet de l'aspiration elle s'appuie contre les nervures 9 du carter 8 qui la maintiennent à distance de ce dernier, de sorte que la filtration s'opère au travers de la quasi-totalité de la surface de la poche 10.The body 5 forms around the casing 8 a filtration chamber 5a equipped with a flexible filtration pocket 10 which is fixed to the base of the body around the periphery of the plate 6. This pocket is formed by a membrane in one ma flexible mesh or knitted material of a type known per se; under the effect of the suction it rests against the ribs 9 of the casing 8 which keep it at a distance from the latter, so that the filtration takes place through almost the entire surface of the pocket 10 .

Par ailleurs le carter 8 contient, d'une part, un moteur électrique de pompe 11 disposé dans une zone centrale de celui-ci, d'autre part, un moteur d'entraine- ment réversible 12 disposé en position excentrée transversalement par rapport à cette zone centrale.Furthermore, the casing 8 contains, on the one hand, an electric pump motor 11 disposed in a central zone thereof, on the other hand, a reversible drive motor 12 disposed in the eccentric position transversely to this central area.

Le moteur de pompe 11 entraine par un arbre 13 une hélice ou roue axiale de turbine 14, qui est disposée dans un manchon 15 de guidage du flux, inséré dans la sortie 7.The pump motor 11 drives a propeller or axial impeller 14 through a shaft 13, which is disposed in a sleeve 15 for guiding the flow, inserted in the outlet 7.

Le moteur d'entraînement 12 entraine par un arbre 16 une roue de transmission 17 qui est reliée par des courroies caoutchoutées 18 à deux roues telles que 19, disposées aux deux extrémités longitudinales du corps. Chacune de ces roues entraine un rouleau cylindrique transversal 20 habillé par un manchon souple en mousse de polyuréthane alvéolée 21. Les deux manchons 21 sont agencés pour venir en contact avec la surface immergée et remplissent la double fonction consistant à engendrer une progression de l'appareil dans un sens ou dans l'autre selon le sens de rotation du moteur 12, et à assurer un brossage de la surface tendant à décoller les impuretés ou dépôts de celle-ci, qui sont ensuite aspirées dans la chambre de filtration 5a.The drive motor 12 drives by a shaft 16 a transmission wheel 17 which is connected by rubberized belts 18 to two wheels such as 19, arranged at the two longitudinal ends of the body. Each of these wheels drives a transverse cylindrical roller 20 covered by a flexible sleeve of cellular polyurethane foam 21. The two sleeves 21 are arranged to come into contact with the immersed surface and fulfill the double function of generating a progression of the device in one direction or the other depending on the direction of rotation of the motor 12, and to ensure a brushing of the surface tending to detach the impurities or deposits therefrom, which are then sucked into the filtration chamber 5a.

Les enroulements du moteur de pompe 11 et ceux du moteur d'entrainement 12 sont alimentés en basse tension (en particulier 12 ou 24 volts) par deux paires de conducteurs gainés regroupés dans le câble étanche 4 déjà cité.The windings of the pump motor 11 and those of the drive motor 12 are supplied with low voltage (in particular 12 or 24 volts) by two pairs of sheathed conductors grouped in the waterproof cable 4 already mentioned.

En outre un flotteur 22 formé par un cylindre creux est articulé au-dessus du corps 5 sur les côtés de celui-ci dans un plan transversal. Ce flotteur qui peut. contenir un poids mobile tel qu'une bille de plomb, coopère avec le décentrage du moteur 12 pour déséquilibrer l'appareil lorsqu'il se trouve au niveau de la ligne d'eau ; il conditionne ainsi un déplacement latéral de l'appareil le long de cette ligne. Le flotteur 22 sert également à saisir l'appareil lors des manipulations.In addition, a float 22 formed by a hollow cylinder is articulated above the body 5 on the sides of the latter in a transverse plane. This float that can. contain a moving weight such as a lead ball, cooperates with the off-center of the motor 12 to unbalance the device when it is at the level of the water line; it thus conditions a lateral movement of the device along this line. The float 22 also serves to grip the apparatus when manipulations.

Par ailleurs le corps 5 porte de part et d'autre deux électro-aimants 23 et 24 qui sont fixés extérieurement au voisinage de la base de celui-ci ; ces électro-aimants sont disposés dans le plan transversal de symétrie de façon que celui qui se trouve situé du côté des moyens de transmission (17, 18, 19), vienne se loger au-dessous de la roue de transmission 17. Des flasques tels que 25 sont fixés de part et d'autre du corps pour protéger ces élect,ro-aimants et les moyens de transmission.Furthermore, the body 5 carries on either side two electromagnets 23 and 24 which are fixed externally in the vicinity of the base thereof; these electromagnets are arranged in the transverse plane of symmetry so that the one which is located on the side of the transmission means (17, 18, 19), comes to be housed below the transmission wheel 17. Flanges such that 25 are fixed on either side of the body to protect these electro-magnets and the means of transmission.

Chaque électro-aimant 23 ou 24, dont l'enroulement est noyé de façon étanche dans un bloc de résine, est doté d'un noyau magnétique qui se présente sous la forme d'un doigt de direction verticale 26 pourvu en partie haute d'une tête élargie 26a et en partie basse d'un talon anti-dérapant 26b ; un ressort 27 sollicite le doigt 26 vers le haut et,en l'absence d'excitation, le maintient dans une position haute passive, dans laquelle son .talon 26b se trouve situé en retrait par rapport au plan passant par les génératrices basses des manchons 21 (plan de contact avec la surface immergée).Each electromagnet 23 or 24, the winding of which is sealed in a block of resin, is provided with a magnetic core which is in the form of a vertical direction finger 26 provided at the top with an enlarged head 26a and in the lower part of a non-slip heel 26b; a spring 27 biases the finger 26 upwards and, in the absence of excitation, maintains it in a passive high position, in which its .standard 26b is located set back relative to the plane passing through the low generatrices of the sleeves 21 (contact plane with the submerged surface).

Chaque électro-aimant est agencé de sorte que, lorsque son enroulement est excité, le doigt subisse un déplacement vers le bas qui l'amène dans une position basse active dans laquelle son talon inférieur 26b se trouve situé en saillie par rapport au plan de contact précité. Ainsi, dans cette position, l'appareil pivote autour du doigt et l'utilisateur peut amener ledit appareil à virer d'un angle précis déterminé en ajustant le temps d'excitation de l'élec.- tro-aimant considéré.Each electromagnet is arranged so that, when its winding is excited, the finger undergoes a downward movement which brings it into an active low position in which its lower heel 26b is located projecting from the contact plane cited above. Thus, in this position, the apparatus pivots around the finger and the user can cause said apparatus to veer from a precise determined angle by adjusting the excitation time of the elec . - three-magnet considered.

Les enroulements des électro-aimants 23 et 24 sont électriquement alimentés en basse tension par quatre conducteurs gainés qui sont soit intégrés au cable 4 (appareil . comportant à l'origine lesdits électro-aimants), des/ soit réunis dans un autre cable rattache au premier par/moyens d'attache classiques (guidage en option, ajouté ultérieurement).The windings of the electromagnets 23 and 24 are electrically supplied with low voltage by four sheathed conductors which are either integrated into the cable 4 (device. Originally comprising said electromagnets), / or combined in another cable attached to the first by conventional attachment means (optional guidance, added later).

La figure 4 est un schéma de principe des liaisons électriques de l'appareil. On retrouve sur cette figure en 28 les deux conducteurs par lesquels le moteur de pompe 11 est alimenté, en 29 les deux conducteurs par lesquels le moteur d'entrainement 12 est alimenté, en 30 les deux conducteurs par lesquels l'électro-aimant 23 est excité et en 31 les deux conducteurs par lesquels l'électro-aimant 24 est excité.Figure 4 is a block diagram of the electrical connections of the device. This figure at 28 shows the two conductors by which the motor pump 11 is supplied, at 29 the two conductors by which the drive motor 12 is supplied, at 30 the two conductors by which the electromagnet 23 is excited and at 31 the two conductors by which the electromagnet 24 is excited.

Ces quatre paires de conducteurs sont connectées au coffret 3 déjà évoqué, situé en bordure de piscine ; ce coffret étanche est relié par des conducteurs d'arrivée 32 à une source électrique de basse tension.These four pairs of conductors are connected to the box 3 already mentioned, located at the edge of the swimming pool; this sealed box is connected by incoming conductors 32 to a low voltage electrical source.

Les conducteurs 28 et 29 quialimentent le moteur de pompe 11 et le moteur d'entrainement 12 sont raccordés à un bloc d'alimentation 33 qui reçoit la basse tension et dont un exemple sera décrit plus loin en référence à la fi- gure 5. Les conducteurs 30 et 31 d'excitation des électro-aimants sont reliés à la basse tension à travers, d'une part, un adap- teur de tension 34 de type classique, d'autre part, un boitier mobile de pilotage 35 que l'utilisateur peut prendre en main pour guider l'appareil en excitant de façon appropriée lesdits électro-aimants.The conductors 28 and 29 which supply the pump motor 11 and the drive motor 12 are connected to a power supply unit 33 which receives the low voltage and an example of which will be described later with reference to FIG. 5. The conductors 30 and 31 of the electromagnets excitation are connected to the low voltage through, on the one hand, a voltage adapter 34 of conventional type, on the other hand, a mobile control box 35 that the user can take in hand to guide the device by appropriately exciting said electromagnets.

Ce boitier de pilotage 35 est relié au coffret 3 par un cable 36 qui, outre les conducteurs de commande d'excitation, contient des conducteurs d'inversion manuelle du sens du moteur d'entrainement 12 ; ces conducteurs sont raccordés au bloc d'alimentation 33 et, comme on le verra ci-après, l'action du bouton d'inversion manuelle du boitier 35 est validée lorsque le bloc 33 est disposé dans l'état correspondant au fonctionnement manuel.This control unit 35 is connected to the box 3 by a cable 36 which, in addition to the excitation control conductors, contains conductors for manual reversal of the direction of the drive motor 12; these conductors are connected to the power supply 33 and, as will be seen below, the action of the manual inversion button of the housing 35 is validated when the block 33 is placed in the state corresponding to manual operation.

Comme l'illustre la figure 5, le bloc 33 ci-dessus évoqué comprend :

  • . un commutateur 37 MANUEL/AUTOMATIQUE permettant soit un fonctionnement manuel soit un fonctionnement automatique de l'appareil,
  • . un potentiomètre 38 de réglage de la fréquence de coupure de la pompe,
  • . un potentiomètre 39 de réglage de la durée de coupure de la pompe,
  • . et un potentiomètre de réglage de la fréquence d'inversions du moteur d'entrainement 12.
As illustrated in FIG. 5, the block 33 mentioned above comprises:
  • . a MANUAL / AUTOMATIC switch 37 allowing either manual or automatic operation of the device,
  • . a potentiometer 38 for adjusting the pump cut-off frequency,
  • . a potentiometer 39 for adjusting the pump cut-off time,
  • . and a potentiometer for adjusting the frequency of reversals of the drive motor 12.

Le circuit d'alimentation rattaché au moteur de pompe 11 comprend deux comparateurs 41 et 42 qui reçoivent, d'une part, des tensions de référence differences engendrées par un diviseur de tension 43, d'autre part, les tensions réglables issues des potentiomètres 38 et 39. Ces po- tentiomètres permettent la charge et la décharge d'une capacité polarisée 44 et sont eux-même polarisés par des diodes 45.The supply circuit attached to the pump motor 11 includes two comparators 41 and 42 which re çoivent the one hand, the reference voltage differences generated by a voltage divider 43, on the other hand, the adjustable voltages from the potentiometers 38 and 39. These p o - tentiomètres allow charging and discharging a capacitor polarized 44 and are themselves polarized by diodes 45.

La tension négative issue du potentiomètre 39 et provenant de la décharge du condensateur 44 est comparée dans le comparateur 42 à la tension de référence et fait basculé une bascule bistable 46 lorsqu'elle atteint cette tension de référence.The negative voltage from the potentiometer 39 and from the discharge of the capacitor 44 is compared in the comparator 42 to the reference voltage and causes a flip-flop 46 toggled when it reaches this reference voltage.

A partir de cet instant le moteur de pompe qui était arrêté pendant la décharge du condensateur 44 est alimenté par l'effet du signal de commande issu de la bascule 46 : ce signal est amplifié dans un étage de sortie 47 et est délivré à une interface 48 d'adaptation de tension lorsque le commutateur 37 est sur le position automatique ; l'interface 48 délivre un signal de commande adapté à l'étage de puissance 49 (relais ou autre) qui alimente la pompe 11.From this instant the pump motor which was stopped during the discharge of the capacitor 44 is supplied by the effect of the control signal from the flip-flop 46: this signal is amplified in an output stage 47 and is delivered to an interface 48 voltage adaptation when the switch 37 is in the automatic position; the interface 48 delivers a control signal adapted to the power stage 49 (relay or other) which supplies the pump 11.

A partir de l'instant de commutation de la bascule 46, le condensateur 44 se recharge à travers le potentiomètre 38 ; lorsque la tension de charge devient égale à la tension de référence du comparateur 41, la bascule est à nouveau commutée et délivre un signal engendrant l'arrêt du moteur de pompe 11 et le cycle peut se reproduire.From the moment of switching of the flip-flop 46, the capacitor 44 is recharged through the potentiometer 38; when the charging voltage becomes equal to the reference voltage of the comparator 41, the rocker is again switched and delivers a signal causing the pump motor 11 to stop and the cycle can be repeated.

Les paramètres des composants sont ajustés de façon à obtenir les plages de réglage suivantes :

  • - durée d'une coupure de la pompe comprise entre 1" et 60",
  • - fréquence de coupure comprise entre 10 et 360 coupure/heure.
The parameters of the components are adjusted so as to obtain the following adjustment ranges:
  • - duration of a pump cut-off between 1 "and 60",
  • - cutoff frequency between 10 and 360 cutoff / hour.

Le circuit d'alimentation rattaché au moteur d'entrainement 12 est similaire au précédent, aux différences près suivantes :The supply circuit attached to the drive motor 12 is similar to the previous one, with the following differences:

Il ne comprend qu'un potentiomètre de réglage 40, l'autre étant remplacé par une résistance prédéterminée 50 qui a pour fonction de produire à chaque inversion un court retard pour la mise sous tension de signe opposé.It includes only one adjustment potentiometer 40, the other being replaced by a predetermined resistor 50 which has the function of producing, on each reversal, a short delay for energizing of opposite sign.

En outre à la sortie de l'étage d'amplification 51, le signal est divisé par 2 dans un diviseur 52 et est envoyé avec le signal initial dans des portes logiques 53 et 54 qui fonctionnent en alternance, avec un temps de retard entre deux alternances opposées. Lorsque le commutateur 37 est dans la position automatique, ces alternances engendrent l'alimentation positive ou négative du moteur 12.In addition at the output of the amplification stage 51, the signal is divided by 2 in a divider 52 and is sent with the initial signal to logic gates 53 and 54 which operate in alternation, with a delay time between two opposite alternations. When the switch 37 is in the automatic position, these alternations generate positive or negative power for the motor 12.

La résistance 50 peut être ajustée en fonction des paramètres des autres composants de sorte que les fronts successifs de deux alternances opposées successives soient décalées d'un temps de l'ordre de 3" ; ce retard permet au moteur de s'arrêter naturellement à chaque inversion et de repartir en sens inverse sans risque de détérioration.The resistor 50 can be adjusted according to the parameters of the other components so that the successive edges of two successive opposite half-waves are offset by a time of the order of 3 "; this delay allows the motor to stop naturally at each inversion and start again in the opposite direction without risk of deterioration.

Le potentiomètre 40 peut être choisi en fonction des paramètres des autres composants pour obtenir une plage de réglage de la fréquence d'inversion comprise entre 5 et 360 inversions/heures.The potentiometer 40 can be chosen as a function of the parameters of the other components to obtain a range of adjustment of the inversion frequency of between 5 and 360 inversions / hours.

Bien entendu les circuits sus-évoqués ne sont qu'un exemple de réalisation et d'autres types de commande peuvent être prévus.Of course the above-mentioned circuits are only an example of an embodiment and other types of control can be provided.

Le fonctionnement de l'appareil est expliqué ci-après aux figures 7, 8 et 9.The operation of the device is explained below in Figures 7, 8 and 9.

Lorsque le moteur de pompe 11 est coupé, l'appareil n'est plus appliqué contre la surface immergée par réaction du flux sortant par la sortie 7 ; s'il se trouve sur une surface plane (fond de piscine), la moindre action extérieure modifie sa trajectoire et en particulier la légère traction du cable 4 l'amène à dévier (cette coupure avec déviation de trajectoire est schématisée en P1 à la figure 7). Si au contraire, l'appareil se trouve sur une surface verticale ou très inclinée (murs de la piscine); il glisse le long de celle-ci jusqu'à venir au contact du fond (point P2 à la figure 7).When the pump motor 11 is switched off, the device is no longer applied against the submerged surface by reaction of the outgoing flow through the outlet 7; if it is on a flat surface (pool bottom), the slightest external action changes its trajectory and in particular the slight pull of cable 4 causes it to deviate (this cut with deviation from trajectory is shown diagrammatically in P 1 at figure 7). If, on the contrary, the appliance is on a vertical or very inclined surface (pool walls); it slides along it until it comes into contact with the bottom (point P 2 in Figure 7).

Ainsi la combinaison de coupures séquentielles de la pompe et d'inversions séquentielles non simultanées du moteur d'entrainement conduit à une trajectoire, ayant un caractère aléatoire au niveau de chaque modification, mais qui globalement peut être adpatée à un travail donné.Thus the combination of sequential cuts of the pump and non-simultaneous sequential reversals of the drive motor leads to a trajectory, having a random character at the level of each modification, but which overall can be adapted to a given job.

Par exemple il est possible d'adapter cette trajectoire de façon à réaliser un balayage uniforme d'une piscine donnée. Pour illustrer cette faculté on a schématisé à la figure 7 deux piscines de dimensions différentes superposées l'une sur l'autre.For example, it is possible to adapt this trajectory so as to carry out a uniform scanning of a given swimming pool. To illustrate this faculty we have diagram shown in Figure 7 two swimming pools of different dimensions superimposed on each other.

On suppose dans les deux cas que la vitesse de progression de l'appareil est de 0,2 m/s.It is assumed in both cases that the speed of progression of the device is 0.2 m / s.

Les réglages des paramètres sont les suivants :

Figure imgb0001
The parameter settings are as follows:
Figure imgb0001

La durée de coupure de la pompe est prévue plus longue'dans le cas de la piscine de grandes dimensions, pour donner le temps à l'appareil de glisser complètement le long des murs verticaux s'il se trouve à la ligne d'eau (cette piscine étant supposée plus profonde que la piscine de petites dimensions).Le réglage de la durée de coupure détermine l'amplitude de la déviation angulaire effectuée à chaque coupure.The pump cut-off time is expected to be longer in the case of a large pool, to give the device time to slide completely along the vertical walls if it is at the water line ( this pool being assumed to be deeper than the small pool). The cut-off time setting determines the amplitude of the angular deviation made at each cut.

Dans chacune des piscines, la fréquence d'inversion est prévu assez faible pour que l'appareil ait le temps de parcourir la plus grande longueur sans revenir sur ses pas. La fréquence de coupure de la pompe est prévue plus importante de sorte que l'appareil glisse le long des murs verticaux peu de temps après avoir atteint la ligne d'eau. Si l'appareil parcourt la piscine dans le sens de la longeur, une coupure intermédiaire (P1) entraine une déviation de sa trajectoire. Comme permet de le comprendre le schéma de la figure 7, des réglages convenables des paramètre sus-évoqués permettent d'obtenir dans les deux cas de piscines un balayage uniforme de celle-ci sans retour prématuré de l'appareil au cours des trajets et sans que celui-ci demeure trop longtemps le long de la ligne d'eau (sur les figures, P est le symbole d'une coupure de la pompe et I celui d'une inversion du sens de progression).In each of the swimming pools, the inversion frequency is expected to be low enough so that the device has time to cover the greatest length without retracing its steps. The pump cut-off frequency is expected to be higher so that the device slides along the vertical walls shortly after reaching the water line. If the device traverses the pool in the direction of the length, an intermediate cut (P 1 ) causes a deviation of its trajectory. As can be understood from the diagram in FIG. 7, suitable adjustments of the above-mentioned parameters make it possible in both cases of swimming pools to obtain a uniform scanning thereof without premature return of the device during the journeys and without that it remains too long along the water line (in the figures, P is the symbol of a cut in the pump and I that of a reversal of the direction of progression).

Par ailleurs on a schématisé à la figure 8 la trajectoire d'un appareil réglé pour nettoyer le fond d'une fosse de piscine. Les inversions sont réglées à une fréquence telle que le parcours de l'appareil entre deux inversions soit de l'ordre de la longueur de la fosse. La fréquence de coupure de pompe est réglée à une valeur plus élevée de façon à engendrer des déviations de trajectoires fréquentes ; en outre la durée des coupures est également prévue de valeur plus élevée pour engendrer des déviations plus importantes.In addition, we have diagrammed in Figure 8 the trajectory of a device set to clean the bottom of a swimming pool pit. The inversions are adjusted at a frequency such that the path of the device between two inversions is of the order of the length of the pit. The pump cutoff frequency is set to a higher value so as to cause deviations from frequent trajectories; in addition, the duration of the cuts is also provided for at a higher value to generate greater deviations.

La figure 9 illustre le cas contraire où l'utilisateur désire nettoyer plus spécialement les murs verticaux et la ligne d'eau. La fréquence d'inversion est prévue à une valeur très faible (5 à 10/heure), l'inversion étant essentiellement destinée à éviter un éventuel coincement de l'appareil dans un angle. La fréquence de coupure de la pompe est au contraire ajustée à une valeur beaucoup plus élevée dépendant de la hauteur des murs verticaux à nettoyer, afin de conduire à une trajectoire du type de celle de la figure 9. Après retombée de l'appareil, celui-ci remonte le long du mur, arrive à la ligne d'eau, se déplace transversalement sous l'effet du déséquilibre déjà évoqué, jusqu'à ce qu'une nouvelle coupure de pompe le fasse retomber.Figure 9 illustrates the opposite case where the user wishes to clean more particularly the vertical walls and the water line. The inversion frequency is provided at a very low value (5 to 10 / hour), the inversion being essentially intended to avoid any possible jamming of the device in a corner. The cut-off frequency of the pump is on the contrary adjusted to a much higher value depending on the height of the vertical walls to be cleaned, in order to lead to a trajectory of the type of that of FIG. 9. After the device has fallen, -this goes up along the wall, arrives at the water line, moves transversely under the effect of the imbalance already mentioned, until a new cut of pump makes it fall.

Les expérimentations dans des bassins de formes différentes ont montré qu'il était facile après quelques tâtonnements de trouver les valeurs optimales des paramètres de l'appareil en fonction du travail de nettoyage désiré.Experiments in tanks of different shapes have shown that it is easy after some trial and error to find the optimal values of the parameters of the device according to the desired cleaning work.

On conçoit la souplesse d'utilisation que permet un tel appareil en l'absence de tout générateur de hasard.We understand the flexibility of use that allows such a device in the absence of any random generator.

Claims (12)

1/ - Appareil de nettoyage automatique d'une surface immergée dans un liquide, comprenant un corps creux (5), des organes d'entrainement dudit corps sur la surface à nettoyer (21), un moteur électrique réversible (12) agencé dans le corps pour transmettre un mouvement de rotation auxdits organes d'entrainement, des moyens d'alimentation électrique dudit moteur comportant des moyens d'inversion séquentielle du sens du courant électrique, une chambre de filtration (5a) située à l'intérieur du corps, une entrée (6a) de liquide vers la chambre de filtration située à la base du corps,: une pompe (14) entrainée par un moteur électrique (11) pour amener le liquide à circuler dans la chambre de filtration, et une sortie (7) du liquide refoulé par la pompe, disposée à l'opposé de la base du corps, ledit appareil de nettoyage étant caractérisé en ce que le moteur électrique de la pompe (11) est associé à des moyens d'alimentation électrique (33) comprenant des moyens d'interruption séquentielle, aptes à engendrer à fréquence pré- déterminée ou aléatoire des corpures ladite alimentation électrique pour des durées de coupure prédéterminées ou aléatoires.1 / - Apparatus for automatically cleaning a surface immersed in a liquid, comprising a hollow body (5), members for driving said body on the surface to be cleaned (21), a reversible electric motor (12) arranged in the body for transmitting a rotational movement to said drive members, means for supplying power to said motor comprising means for sequentially reversing the direction of the electric current, a filtration chamber (5a) situated inside the body, a liquid inlet (6a) to the filtration chamber located at the base of the body: a pump (14) driven by an electric motor (11) to bring the liquid to circulate in the filtration chamber, and an outlet (7) liquid discharged by the pump, disposed opposite the base of the body, said cleaning device being characterized in that the electric motor of the pump (11) is associated with electrical supply means (33) comprising means of sequential interruption, able to generate said power supply at a predetermined or random frequency at said predetermined or random cut-off times. 2/ - Appareil de nettoyage selon la revendication 1, caractérisé en ce que les moyens d'interruption séquentielle -sont adaptés pour engendrer une fréquence de coupure prédéterminée comprise entre 10 et 360 coupures/heure et une durée prédéterminée pour chaque coupure comprise entre 1 et 60 secondes.2 / - Cleaning device according to claim 1, characterized in that the sequential interruption means -are adapted to generate a predetermined cutoff frequency between 10 and 360 cuts / hour and a predetermined duration for each cut between 1 and 60 seconds. 3/ - Appareil de nettoyage selon la revendication 2, caractérisé en ce que les moyens d'interruption séquentielle sont réglables pour permettre d'ajuster la fréquence de coupure et la durée de chaque coupure dans les plages précitées.3 / - A cleaning device according to claim 2, characterized in that the sequential interruption means are adjustable to allow the cut-off frequency and the duration of each cut to be adjusted within the above-mentioned ranges. 4/ - Appareil de nettoyage selon l'une des revendications 1, 2 ou 3, caractérisé en ce que les moyens d'inversion séquentielle sont réglables et adaptés pour engendrer une fréquence d'inversion du moteur d'entrainement ajustable entre 5 et 360 inversions/heure.4 / - Cleaning device according to one of claims 1, 2 or 3, characterized in that the sequential reversing means are adjustable and adapted to generate an inversion frequency of the drive motor adjustable between 5 and 360 inversions /hour. 5/ - Appareil de nettoyage selon l'une des revendications 1, 2, 3 ou 4, caractérisé en ce qu'il comprend au moins un doigt mobile (26) agencé sur un côté du corps pour pouvoir présenter deux positions, une position passive où ledit doigt se trouve en retrait par rapport au plan de contact des organes d'entrainement avec la surface immergée, et une position active où ledit doigt vient au niveau de ce plan ou dépasse de celui-ci, ledit doigt étant associé à des moyens de télécommande (23,24, 35) adaptés pour engendrer son déplacement d'une position vers l'autre.5 / - Cleaning device according to one of claims 1, 2, 3 or 4, characterized in that it comprises at least one movable finger (26) arranged on one side of the body in order to be able to present two positions, a passive position where said finger is set back with respect to the plane of contact of the drive members with the submerged surface, and an active position where said finger comes to or exceeds this plane ci, said finger being associated with remote control means (23, 24, 35) adapted to generate its displacement from one position to the other. 6/ - Appareil de nettoyage selon la revendication 5, caractérisé en ce qu'il comprend deux doigts mobiles (26) disposés symétriquement par rapport au plan axial longitudinal du corps, chaque doigt étant associé à des moyens de télécommande (23, 24, 35) permettant de le commander indépendamment de l'autre doigt.6 / - Cleaning device according to claim 5, characterized in that it comprises two movable fingers (26) arranged symmetrically with respect to the longitudinal axial plane of the body, each finger being associated with remote control means (23, 24, 35 ) to control it independently of the other finger. 7/ - Appareil de nettoyage selon l'une des revendications 5 ou 6, caractérisé en ce que les moyens de télécommande de chaque doigt comprennent : .. un électro-aimant (23, 24) pourvu d'un noyau constitué par ledit doigt, lequel est associé de façon à se trouver dans sa positon active lorsque ledit électro-aimant est excité, . des moyens d'excitation électrique dudit électro-aimant, . et des moyens (27) de rappel du doigt vers sa position passive en l'absence d'excitation. 7 / - Cleaning apparatus according to one of claims 5 or 6, characterized in that the remote control means of each finger comprise: .. an electromagnet (23, 24) provided with a core constituted by said finger, which is associated so as to be in its active position when said electromagnet is excited, . means for electrically exciting said electromagnet, . and means (27) for returning the finger to its passive position in the absence of excitation. 8/ - Appareil de nettoyage selon l'une des revendications 1, 2, 3, 4, 5, 6 ou 7, caractérisé en ce que le moteur électrique d'entrainement (12), et le moteur de la pompe (11) sont reliés à leurs moyens d'alimentation électrique (33) par des conducteurs électriques (28, 29) formant un cable étanche (4), de longeur appropriée pour disposer lesdits moyens d'alimentation avec leurs moyens d'interruption séquentielle ou leurs moyens d'inversion séquentielle dans un coffret (3) situé en dehors du liquide.8 / - Cleaning device according to one of claims 1, 2, 3, 4, 5, 6 or 7, characterized in that the electric drive motor (12), and the pump motor (11) are connected to their electrical supply means (33) by electrical conductors (28, 29) forming a sealed cable (4), of suitable length for disposing said supply means with their sequential interruption means or their means of sequential reversal in a box (3) located outside the liquid. 9/ - Appareil de nettoyage selon les revendications 7 et 8 prises ensemble, caractérisé en ce que le ou les électro-aimants (23, 24) sont réunis à leurs moyens d'excitation électrique (34, 35) par des conducteurs gainés (30, 31) liés au cable (4) précité.9 / - Cleaning device according to claims 7 and 8 taken together, characterized in that the electromagnet (s) (23, 24) are joined to their electrical excitation means (34, 35) by sheathed conductors (30 , 31) linked to the aforementioned cable (4). 10/ - Appareil de nettoyage selon l'une des revendications précédentes, comprenant un flotteur (22) articulé sur le corps (5) dans un plan transversal, le moteur de la pompe (11) étant disposé dans le corps dans une zone centrale de celui-ci, cependant que le moteur d'entrairement (12) est disposé en position excentrée transversalement par rapport à cette zone centrale.10 / - Cleaning device according to one of the preceding claims, comprising a float (22) articulated on the body (5) in a transverse plane, the pump motor (11) being arranged in the body in a central zone thereof, while the entrainement motor (12) is arranged in an eccentric position transversely to this central area. 11/ - Appareil de nettoyage selon l'une des revendications précédentes, caractérisé en ce qu'il comprend deux organes d'entrainement constitués par deux rouleaux cylindriques transversaux (20) disposés aux deux extrémités du corps, chacun habillé par un manchon souple alvéolé (21).11 / - Cleaning device according to one of the preceding claims, characterized in that it comprises two drive members constituted by two transverse cylindrical rollers (20) arranged at the two ends of the body, each covered by a flexible honeycomb sleeve ( 21). 12/ - Appareil de nettoyage selon l'une des revendications précédentes, caractérisé en ce que le moteur de la pompe (11) et le moteur d'entrainement (12) sont logés dans un carter étanche (8) doté extérieurement de nervures (9) contre lesquelles viennent en appui une poche de filtration (10) disposée dans la chambre de filtration (5a).12 / - Cleaning device according to one of the preceding claims, characterized in that the pump motor (11) and the drive motor (12) are housed in a sealed casing (8) externally provided with ribs (9) ) against which abut a filtration bag (10) disposed in the filtration chamber (5a).
EP85200932A 1984-07-11 1985-06-13 Automatic cleaning apparatus for an under-water surface Expired - Lifetime EP0169589B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85200932T ATE52563T1 (en) 1984-07-11 1985-06-13 AUTOMATIC CLEANING DEVICE OF A RECESSED AREA.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8411609 1984-07-11
FR8411609A FR2567552B1 (en) 1984-07-11 1984-07-11 APPARATUS FOR AUTOMATIC CLEANING OF AN UNDERWATER SURFACE

Related Child Applications (1)

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EP88202702.2 Division-Into 1985-06-13

Publications (2)

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EP0169589A1 true EP0169589A1 (en) 1986-01-29
EP0169589B1 EP0169589B1 (en) 1990-05-09

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EP85200932A Expired - Lifetime EP0169589B1 (en) 1984-07-11 1985-06-13 Automatic cleaning apparatus for an under-water surface

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EP (1) EP0169589B1 (en)
AT (1) ATE52563T1 (en)
DE (2) DE3577585D1 (en)
ES (1) ES287971Y (en)
FR (1) FR2567552B1 (en)

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Publication number Priority date Publication date Assignee Title
EP1122382A1 (en) * 2000-02-04 2001-08-08 International Caratti S.r.l. Robotised pool cleaner
WO2005045162A1 (en) 2003-11-04 2005-05-19 Aqua Products, Inc. Directional control for dual brush robotic pool cleaners
FR2929310A1 (en) * 2008-03-27 2009-10-02 Zodiac Pool Care Europ Soc Par IMMERSE SURFACE CLEANING APPARATUS WITH PROTUBERANCE ACCELERATOR OF INPUT FLOW
FR2990032A1 (en) * 2012-04-27 2013-11-01 Zodiac Pool Care Europe METHOD AND DEVICE FOR MODIFYING A DEVICE FOR CLEANING AN IMMERED SURFACE AND ASSOCIATED CLEANING DEVICE

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FR2729995B1 (en) * 1995-02-01 1997-04-18 Sarl Vbv DEVICE FOR CLEANING WATER BASIN WALLS AND PARTICULARLY POOLS
FR2864129B1 (en) 2003-12-19 2006-12-29 Zodiac Pool Care Europe METHOD FOR CONTROLLING AN APPARATUS FOR AUTOMATIC CLEANING OF AN IMMERSION SURFACE IN A LIQUID, AND CORRESPONDING CLEANING APPARATUS
FR2864130B1 (en) 2003-12-19 2006-12-29 Zodiac Pool Care Europe METHOD FOR CONTROLLING AN APPARATUS FOR AUTOMATIC CLEANING OF AN IMMERSION SURFACE IN A LIQUID, AND CORRESPONDING CLEANING APPARATUS
FR2925550B1 (en) 2007-12-21 2012-10-19 Zodiac Pool Care Europe IMMERSE SURFACE CLEANING APPARATUS WITH INCLINED FILTRATION
FR2925553B1 (en) 2007-12-21 2010-03-12 Zodiac Pool Care Europe IMMERSE SURFACE CLEANING APPARATUS WITH INCLINED PUMPING PROPELLER
FR2925549B1 (en) 2007-12-21 2012-08-10 Zodiac Pool Care Europe IMMERSION SURFACE CLEANING APPARATUS WITH TURBULENT FILTRATION
FR2925554B1 (en) 2007-12-21 2010-03-12 Zodiac Pool Care Europe IMMERED SURFACE CLEANER APPARATUS WITH PUMPING MOTOR OUT OF HYDRAULIC CIRCUIT
FR2954380B1 (en) 2009-12-18 2015-03-20 Zodiac Pool Care Europe IMMERGE SURFACE CLEANING APPARATUS WITH CABINAGE GIRATION
FR2954379B1 (en) 2009-12-18 2012-04-13 Zodiac Pool Care Europe SUBMERSIBLE SURFACE CLEANING APPARATUS WITH AT LEAST ONE NON-MOTOR ROLLING MEMBER OFFSET LATERALLY
FR2954378B1 (en) 2009-12-18 2013-08-30 Zodiac Pool Care Europe IMMERSE SURFACE CLEANING APPARATUS WITH HYDRAULIC CABRAGE
FR2954377B1 (en) 2009-12-18 2015-03-13 Zodiac Pool Care Europe SUBMERSIBLE SURFACE CLEANING APPARATUS WITH UNIQUE ELECTRIC REVERSIBLE DRIVING AND PUMPING MOTOR
FR2961838B1 (en) 2010-06-25 2012-07-27 Zodiac Pool Care Europe AUTOMOTIVE APPARATUS IMMERED SURFACE CLEANER
FR2981970B1 (en) * 2011-10-27 2013-11-29 Zodiac Pool Care Europe IMMEREDE SURFACE CLEANER APPARATUS WITH SEMI-AUTOMATIC RETURN CONTROL
FR3019573B1 (en) 2014-04-04 2016-03-25 Zodiac Pool Care Europe ROBOT POOL CLEANER WITH ADJUSTABLE PUMPING POWER

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122382A1 (en) * 2000-02-04 2001-08-08 International Caratti S.r.l. Robotised pool cleaner
WO2005045162A1 (en) 2003-11-04 2005-05-19 Aqua Products, Inc. Directional control for dual brush robotic pool cleaners
EP1689956A1 (en) * 2003-11-04 2006-08-16 Aqua Products Inc. Directional control for dual brush robotic pool cleaners
EP1689956A4 (en) * 2003-11-04 2007-01-03 Aqua Products Inc Directional control for dual brush robotic pool cleaners
FR2929310A1 (en) * 2008-03-27 2009-10-02 Zodiac Pool Care Europ Soc Par IMMERSE SURFACE CLEANING APPARATUS WITH PROTUBERANCE ACCELERATOR OF INPUT FLOW
WO2009125130A2 (en) * 2008-03-27 2009-10-15 Zodiac Pool Care Europe Cleaner apparatus for a submerged surface with a protuberance which accelerates the inlet flow
WO2009125130A3 (en) * 2008-03-27 2009-12-23 Zodiac Pool Care Europe Cleaner apparatus for a submerged surface with a protuberance which accelerates the inlet flow
US8397331B2 (en) 2008-03-27 2013-03-19 Zodiac Pool Care Europe Cleaner apparatus for a submerged surface with a protuberance which accelerates the inlet flow
FR2990032A1 (en) * 2012-04-27 2013-11-01 Zodiac Pool Care Europe METHOD AND DEVICE FOR MODIFYING A DEVICE FOR CLEANING AN IMMERED SURFACE AND ASSOCIATED CLEANING DEVICE
US9791840B2 (en) 2012-04-27 2017-10-17 Zodiac Pool Care Europe Method and device for modifying a device for cleaning a submerged surface
US10191483B2 (en) 2012-04-27 2019-01-29 Zodiac Pool Care Europe Method and device for modifying a device for cleaning a submerged surface

Also Published As

Publication number Publication date
DE3585288D1 (en) 1992-03-05
ES287971Y (en) 1987-06-16
EP0169589B1 (en) 1990-05-09
ES287971U (en) 1986-05-01
ATE52563T1 (en) 1990-05-15
FR2567552A1 (en) 1986-01-17
DE3577585D1 (en) 1990-06-13
FR2567552B1 (en) 1986-12-05

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