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EP0232351B1 - Apparatus intended for automatic cleaning, particularly of the bottom of a swimming-pool - Google Patents

Apparatus intended for automatic cleaning, particularly of the bottom of a swimming-pool Download PDF

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Publication number
EP0232351B1
EP0232351B1 EP86904846A EP86904846A EP0232351B1 EP 0232351 B1 EP0232351 B1 EP 0232351B1 EP 86904846 A EP86904846 A EP 86904846A EP 86904846 A EP86904846 A EP 86904846A EP 0232351 B1 EP0232351 B1 EP 0232351B1
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EP
European Patent Office
Prior art keywords
case
water
housing
suction
pool
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP86904846A
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German (de)
French (fr)
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EP0232351A1 (en
Inventor
Max Roumagnac
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Individual
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Individual
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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
    • 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
    • E04H4/1672—Connections to the pool water circulation system

Definitions

  • the present invention relates to an automatic displacement device capable of cleaning by suction, in particular the bottom of a swimming pool or the like.
  • the cleaning of a swimming pool consists in removing the deposits which occur mainly on the bottom.
  • This operation is carried out, most often, manually thanks to a broom connected to the general suction of the pool.
  • Agitators are a kind of octopus which is driven by a backflow of pressurized water.
  • Vacuums are automatic displacement devices on the bottom and possibly the walls of the pool, which are either connected to the general suction by a floating hose or to a booster, or electrically controlled by an on-board propulsion unit, possibly programmed.
  • This device comprises a suction casing in the general shape of a flattened cylinder with a vertical axis provided with a bottom defining with it a suction orifice or mouth situated in a plane substantially parallel to the surface to be cleaned and at a short distance. thereof, a means secured to the housing suitable for sending a jet of water into a nozzle carried by the housing and oriented approximately parallel to the plane of the surface to be cleaned and a flap pivotally mounted on the housing.
  • Said nozzle is in fact made up of two diametrically opposite fixed nozzles and defining two opposite thrust axes selectively put into service.
  • the role of the flap is to allow, when the device abuts against a wall, to change the thrust axis.
  • the device can only start substantially in the opposite direction and the complete scanning of the bottom of the pool is more than problematic.
  • the present invention aims to provide a device of the propulsion type by reaction from the water supplied by the water delivery system of the swimming pool, comprising means of propulsion and change of direction simple, effective and suitable for ensuring the machine a random displacement allowing to carry out a total sweep of the surface of the bottom of the swimming pool and therefore to completely clean it.
  • the subject of the invention is an apparatus for automatic cleaning, in particular of the bottom of a swimming pool or the like, comprising a suction casing in the general form of a flattened cylinder with a vertical axis provided with a removable bottom defining with the latter a suction orifice or mouth situated in a plane substantially parallel to the surface to be cleaned and at a short distance from the latter, and from a suction water outlet orifice, a filter disposed in the casing between said suction orifice and said water outlet orifice, a means secured to the casing suitable for sucking water from the casing and sending it into a nozzle carried by the casing and oriented substantially parallel to the plane of the surface to be cleaned and a deflector fin secured to the casing, the axis of the propellant jet of the nozzle being offset laterally relative to the vertical axis of the casing and intersecting the plane of the deflector fin.
  • Such an apparatus is capable of moving over the bottom of a swimming pool by reaction along a straight line determined by the result of the propellant force of the jet of the nozzle and the braking force of the deflector fin, then, at contact with a side wall of the pool, pivot to start again in another direction and repeat the same pivoting against a new wall, the device thus moving in the manner of a billiard ball returned by the bands and eventually passing over the entire surface of the bottom and therefore completely clean it.
  • the water and the various impurities and debris covering the bottom are thus sucked into the casing, the impurities and debris are filtered and the sucked water is discharged through the propellant nozzle.
  • the device rests on the bottom by means of orientable rollers and / or a brush arranged in a cord in the vicinity of said water suction orifice.
  • the propulsion means of the casing can be a device known as a hydro-injector and comprising an injection water inlet orifice connected by a flexible pipe to a discharge opening or the like of the swimming pool, an orifice of water suction connected to the water outlet orifice of the casing and a delivery nozzle constituting said propellant nozzle.
  • This device has the merit of using traditional swimming pool equipment and of consuming practically no energy because the system for recycling the water in the swimming pool is almost always in action.
  • the propulsion means can also be constituted by an electric pump incorporated in the casing and driving a turbine housed in a conduit connecting the water outlet orifice of the casing to said propellant nozzle. Electricity is supplied either from a floating electrical cable connected to a shore power source, or from an on-board accumulator.
  • This second means of propulsion lends itself particularly to the production of an apparatus capable also of moving on the surface of the water, "head” down, and of cleaning the surface by suction of the film of water. area.
  • one or more removable floats are attached to the bottom and the housing of the device.
  • FIG. 1 shows a swimming pool 1 with its water suction pump 2, its filter 3 and a mouth 4 for discharging the filtered water into the swimming pool.
  • a self-propelled machine 5 propelled by reaction and connected by a flexible pipe 6 to the discharge mouth 4.
  • FIGS. 3 and 4 schematically represent an embodiment of the machine 5 shown diagrammatically in FIG. 1.
  • the apparatus shown in FIGS. 3 and 4 consists of a casing 7 in the form of a circular wafer or flattened cylinder with a vertical axis open at its lower part and having at its upper part a circular orifice 8 coaxial with the casing 7, called water outlet port.
  • the lower orifice is almost completely closed off by a removable bottom 9 delimiting only with the lower edge of the casing a so-called orifice 10 of suction in the form of a narrow arched window, extending over approximately 120 ° from the circumference of the casing 7.
  • the bottom 9 On the side opposite to the suction mouth 10, the bottom 9 is provided with orientable rollers 11, however, in line with said mouth, the lower edge of the casing 7 is provided with a brush 12 in the form of a cord of the same shape and length. .
  • the arched brush 12 and the rollers 11 keep the device at a sufficient distance from the bottom of the swimming pool to allow its movement and the suitable suction of the impurities and various debris strewn on the bottom, after prior brushing of the surface to be cleaned.
  • annular filter F of the washable cartridge type for example, interposed between the suction mouth 10 and the water outlet orifice 8.
  • This orifice communicates the casing 7 with a hydraulic propulsion device by reaction 13 commonly called hydro-injector.
  • Such a device is well known and does not need to be described in detail. It comprises a propellant nozzle 14 whose inlet is connected to the water outlet orifice 8 and an injector 15 opening in the axis of the nozzle 14 and connected to an orifice 16 said to be coaxial injection to the orifice 8 and connected by a rotary connector 17 with the flexible pipe 6.
  • the body of the hydro-injector 13 has a general shape of T, the nozzle 14 being arranged horizontally. Furthermore, the outlet 14a of the nozzle (FIG. 3) is directed to the side so that the thrust axis 18 of the ejected water does not cut the vertical axis of the device but is offset so as to cut a vertical plane deflector fin 19 fixedly mounted on the casing-hydro-injector assembly.
  • the angular position ( Figure 3) of the nozzle 14 and the fin 19 relative to the opening of the suction mouth 10 is determined so that in water the combination of the propelling force 18 with the reaction to the advancement operated by the fin 19 generates a resultant force moving the apparatus in a direction 20 in the axis of the suction mouth 10.
  • the apparatus 5 moves in a rectilinear manner. Arrived in abutment (A) against the wall of the pool, the resistance to advancement provided by the fin 19 disappears and the rotational movement that tends to apply the offset propulsive force 18 on the device 5 is not more compensated so that the device 5 will substantially pivot on itself (B) around its vertical axis until the reaction of the wall disappears (C) and the fin 19 resumes its full compensating effect . At this time the device 5 is oriented in the direction 21 and moves practically in a straight line. In FIG. 2, for the sake of clarity, three offset positions A, B, C of the apparatus have been shown during the encounter with the wall. In reality the three positions are approximately superimposed.
  • the apparatus will turn again from edge and set off again in direction 22, to turn again at E and set off again according to direction 23; and so on so as to "sweep" the entire surface of the bottom of the pool after a certain time.
  • the brush 12 stirs the bottom by lifting the deposits. These are then sucked in by the depression created at inside the casing 7 by the hydro-injector 13 and retained by the filter F. The sucked water freed of its various debris then goes to the nozzle 14 and participates in the propulsive force of the machine.
  • connection of the pipe 6 to the pool outlet 4 allows normal operation of the pool water filtration system which eliminates impurities which would not have been stopped by the filter F of the device 5 The latter therefore requires no external installation or additional energy.
  • FIG. 5 illustrates an alternative embodiment in which the deflector fin 19 - hydro-injector 13 assembly is rotatably mounted on the casing 7 'in the manner of a wind vane.
  • the suction mouth 10 ' is therefore completely circular and the removable insert 9' is provided with a brush 12 'in the form of a circular bead fixed to the periphery of the bottom.
  • the latter comprises, like the bottom 9 of the embodiment of FIG. 4, an internal rim 24 over the entire length of the mouth 10 ′, in order to trap the debris and impurities in the device when it leaves the water from the appliance, in particular to empty it and change the filter.
  • the device rests on the bottom of the pool only via the brush cord 12 '.
  • the device does not use the grip on the bottom of the pool to move and, therefore, its movement on an inclined bottom is not a problem because there is no risk of slip.
  • Figures 6 and 7 show another embodiment in which the propellant reaction is constituted by a turbine 25 disposed in a bent conduit 26 serving as a nozzle and rotatably mounted on the water outlet orifice 8 of the casing 7 "on the device.
  • the turbine 25 with an axis coaxial with the axis of the casing 7 ", is driven by an electric motor 27 fixed on the bottom 9" inside the annular filter F.
  • the suction mouth 10 " is circular and provided a brush bead 12 ′ as in the device in FIG. 5.
  • the rotating nozzle 26 has its end also oriented offset from the vertical axis of the device and is also provided with a deflector fin 19 ".
  • the device moves exactly like those of the previous figures.
  • the power supply to the motor 27 is ensured either by a floating cord 28 connected to a grounded electrical source (sector or other), or from an on-board storage battery as symbolically represented at 29.
  • the device can be used to clean the surface of the water 30 (FIG. 7) of the swimming pool by putting it “head” down and making it float thanks to one or more removable floats 31 fixed under the bottom 9 "and on the casing 7 "so that the mouth 10" sucks the film of surface water from the pool.
  • the invention is obviously not limited to the embodiments shown and described above but on the contrary covers all the variants provided for by the claims, in particular as regards the shapes and arrangements of the propellant nozzle and of the deflector fin both relative to each other and with respect to the housing of the device.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The present apparatus intended for automatic cleaning, particularly of the bottom of a swimming-pool, is characterized in that it comprises a suction housing (7) generally configured as a flat cylinder with a vertical axis and provided with a removable bottom (9) defining therewith a suction orifice or mouth (10) situated in a plane substantially parallel to the surface to be cleaned and at a small distance therefrom, and with a sucked water outlet (8), a filter (F) arranged in the housing between said suction orifice and said water outlet, means (13, 26) integral with the housing (7) for sucking water from the housing and for sending it into a pipe carried by the housing and orientated substantially parallel to the plane of the surface to be cleaned and a deflector fin (19) integral with the housing, the axis of the propulsive jet of the pipe being laterally offset with respect to the vertical axis of the housing and cutting the plane of the deflector fin. Application to the cleaning of swimming-pools or the like.

Description

La présente invention a trait à un dispositif à déplacement automatique capable de nettoyer par aspiration en particulier le fond d'une piscine ou analogue.The present invention relates to an automatic displacement device capable of cleaning by suction, in particular the bottom of a swimming pool or the like.

Le nettoyage d'une piscine consiste à enlever les dépôts qui se produisent essentiellement sur le fond.The cleaning of a swimming pool consists in removing the deposits which occur mainly on the bottom.

Cette opération s'effectue, le plus souvent, manuellement grâce à un balai relié à l'aspiration générale de la piscine.This operation is carried out, most often, manually thanks to a broom connected to the general suction of the pool.

Cette opération qui doit être effectuée une fois par semaine devient vite une "corvée" ce qui explique l'intérêt des appareils de nettoyage automatique et leur développement malgré un niveau de prix élevé.This operation, which must be carried out once a week, quickly becomes a "chore" which explains the interest of automatic cleaning devices and their development despite a high price level.

Les appareils automatiques disponibles sur le marché se rangent dans deux grandes catégories: les agitateurs et les aspirateurs.The automatic devices available on the market fall into two main categories: agitators and vacuum cleaners.

Les agitateurs sont des sortes de pieuvres qui sont animées par un refoulement d'eau sous pression.Agitators are a kind of octopus which is driven by a backflow of pressurized water.

Leur rôle est de remettre en suspension dans l'eau les dépôts qui se sont produits. Les matières en suspension sont alors éliminées par le système général de filtration de la piscine.Their role is to resuspend the deposits that have occurred in the water. The suspended matter is then eliminated by the general filtration system of the pool.

Les aspirateurs sont des appareils à déplacement automatique sur le fond et éventuellement les parois de la piscine, qui sont, soit reliés à l'aspiration générale par un tuyau flottant ou à un surpresseur, soit à commande électrique par groupe propulsif embarqué éventuellement programmé.Vacuums are automatic displacement devices on the bottom and possibly the walls of the pool, which are either connected to the general suction by a floating hose or to a booster, or electrically controlled by an on-board propulsion unit, possibly programmed.

La plupart des systèmes de déplacement de ces appareils font appel à un méchanisme sophistiqué (turbines, engrenages, pompe immergée, moto- réducteur, contacts fin de course) d'un coût de fabrication et d'entretien élevé.Most of the movement systems of these devices use a sophisticated mechanism (turbines, gears, submersible pump, gear motor, limit switches) with high manufacturing and maintenance costs.

Dans cette catégorie d'appareils on connaît celi décrit dans le document US-A-4.100.641. Cet appareil comprend un carter d'aspiration en forme générale de cylindre aplati d'axe vertical muni d'un fond définissant avec celui-ci un orifice ou bouche d'aspiration situé dans un plan sensiblement parallèle à la surface à nettoyer et à faible distance de celle-ci, un moyen solidaire du carter propre à envoyer un jet d'eau dans une tuyère portée par le carter et orientée approximativement parallèlement au plan de la surface à nettoyer et un volet monté pivotant sur le carter.In this category of apparatuses we know that described in document US-A-4,100,641. This device comprises a suction casing in the general shape of a flattened cylinder with a vertical axis provided with a bottom defining with it a suction orifice or mouth situated in a plane substantially parallel to the surface to be cleaned and at a short distance. thereof, a means secured to the housing suitable for sending a jet of water into a nozzle carried by the housing and oriented approximately parallel to the plane of the surface to be cleaned and a flap pivotally mounted on the housing.

Ladite tuyère est en fait constituée de deux embouts fixes diamétralement opposés et définissant deux axes de poussée opposés sélectivement mis en service.Said nozzle is in fact made up of two diametrically opposite fixed nozzles and defining two opposite thrust axes selectively put into service.

Le rôle du volet est de permettre, lorsque l'appareil vient en butée contre une paroi, de changer l'axe de poussée.The role of the flap is to allow, when the device abuts against a wall, to change the thrust axis.

Toutefois, avec un tel dispositif, l'appareil ne peut que repartir sensiblement en sens inverse et le balayage complet du fond de la piscine est plus que problématique.However, with such a device, the device can only start substantially in the opposite direction and the complete scanning of the bottom of the pool is more than problematic.

La présente invention vise à proposer un appareil du type à propulsion par réaction à partir de l'eau fournie par le système de refoulement d'eau de la piscine, comportant des moyens de propulsion et changement de direction simples, efficaces et propres à assurer à l'engin un déplacement aléatoire permettant de réaliser un balayage total de la surface du fond de la piscine et donc de nettoyer complètement celui-ci.The present invention aims to provide a device of the propulsion type by reaction from the water supplied by the water delivery system of the swimming pool, comprising means of propulsion and change of direction simple, effective and suitable for ensuring the machine a random displacement allowing to carry out a total sweep of the surface of the bottom of the swimming pool and therefore to completely clean it.

A cet effet, l'invention a pour objet un appareil pour le nettoyage automatique notamment du fond d'une piscine ou analogue, comprenant un carter d'aspiration en forme générale de cylindre aplati d'axe vertical muni d'un fond amovible définissant avec celui-ci un orifice ou bouche d'aspiration situé dans un plan sensiblement parallèle à la surface à nettoyer et à faible distance de celle-ci, et d'un orifice de sortie d'eau aspirée, un filtre disposé dans le carter entre ledit orifice d'aspiration et ledit orifice de sortie d'eau, un moyen solidaire du carter propre à aspirer l'eau du carter et à l'envoyer dans une tuyère portée par le carter et orientée sensiblement parallèlement au plan de la surface à nettoyer et un aileron déflecteur solidaire du carter, l'axe du jet propulsif de la tuyère étant déporté latéralement par rapport à l'axe vertical du carter et coupant le plan de l'aileron déflecteur.To this end, the subject of the invention is an apparatus for automatic cleaning, in particular of the bottom of a swimming pool or the like, comprising a suction casing in the general form of a flattened cylinder with a vertical axis provided with a removable bottom defining with the latter a suction orifice or mouth situated in a plane substantially parallel to the surface to be cleaned and at a short distance from the latter, and from a suction water outlet orifice, a filter disposed in the casing between said suction orifice and said water outlet orifice, a means secured to the casing suitable for sucking water from the casing and sending it into a nozzle carried by the casing and oriented substantially parallel to the plane of the surface to be cleaned and a deflector fin secured to the casing, the axis of the propellant jet of the nozzle being offset laterally relative to the vertical axis of the casing and intersecting the plane of the deflector fin.

Un tel appareil est de nature à se déplacer sur le fond d'une piscine par réaction suivant une ligne droite déterminée par la résultante de la force propulsive du jet de la tuyère et de la force de freinage de l'aileron déflecteur, puis, au contact avec une paroi latérale de la piscine, de pivoter pour repartir suivant une autre direction et répéter le même pivotement contre une nouvelle paroi, l'appareil se déplaçant ainsi à la manière d'une boule de billard renvoyée par les bandes et finissant par passer sur toute la surface du fond et donc nettoyer complètement celui-ci.Such an apparatus is capable of moving over the bottom of a swimming pool by reaction along a straight line determined by the result of the propellant force of the jet of the nozzle and the braking force of the deflector fin, then, at contact with a side wall of the pool, pivot to start again in another direction and repeat the same pivoting against a new wall, the device thus moving in the manner of a billiard ball returned by the bands and eventually passing over the entire surface of the bottom and therefore completely clean it.

L'eau et les impuretés et débris divers recouvrant le fond sont ainsi aspirés dans le carter, les impuretés et débris sont filtrés et l'eau aspirée est rejetée par la tuyère propulsive.The water and the various impurities and debris covering the bottom are thus sucked into the casing, the impurities and debris are filtered and the sucked water is discharged through the propellant nozzle.

L'appareil repose sur le fond par l'intermédiaire de roulettes orientables et/ou d'une brosse disposée en cordon au voisinage dudit orifice d'aspiration d'eau.The device rests on the bottom by means of orientable rollers and / or a brush arranged in a cord in the vicinity of said water suction orifice.

Le moyen de propulsion du carter peut être un dispositif connu sous le nom d'hydro-injecteur et comportant un orifice d'entrée d'eau d'injection relié par une canalisation souple à une bouche de refoulement ou analogue de la piscine, un orifice d'aspiration d'eau relié à l'orifice de sortie d'eau du carter et une tuyère de refoulement constituant ladite tuyère propulsive. Ce dispositif a le mérite d'utiliser l'équipement traditionnel de la piscine et de ne consommer pratiquement aucune énergie du fait que le système de recyclage de l'eau de la piscine est pratiquement toujours en action.The propulsion means of the casing can be a device known as a hydro-injector and comprising an injection water inlet orifice connected by a flexible pipe to a discharge opening or the like of the swimming pool, an orifice of water suction connected to the water outlet orifice of the casing and a delivery nozzle constituting said propellant nozzle. This device has the merit of using traditional swimming pool equipment and of consuming practically no energy because the system for recycling the water in the swimming pool is almost always in action.

Le moyen de propulsion peut également être constitué par une pompe électrique incorporée dans le carter et entraînant une turbine logée dans un conduit reliant l'orifice de sortie d'eau du carter à ladite tuyère propulsive. L'électricité est fournie, soit à partir d'un câble électrique flottant relié à une source électrique à terre, soit à partir d'un accumulateur embarqué.The propulsion means can also be constituted by an electric pump incorporated in the casing and driving a turbine housed in a conduit connecting the water outlet orifice of the casing to said propellant nozzle. Electricity is supplied either from a floating electrical cable connected to a shore power source, or from an on-board accumulator.

Ce second moyen de propulsion se prête tout particulièrement à la réalisation d'un appareil capable également de se déplacer à la surface de l'eau, la "tête" en bas, et de nettoyer la surface par aspiration de la pellicule d'eau de surface. A cet effet, un ou plusieurs flotteurs amovibles sont fixés sur le fond et le carter de l'appareil.This second means of propulsion lends itself particularly to the production of an apparatus capable also of moving on the surface of the water, "head" down, and of cleaning the surface by suction of the film of water. area. For this purpose, one or more removable floats are attached to the bottom and the housing of the device.

D'autres caractéristiques et avantages ressortiront de la description qui va suivre de modes de réalisation du dispositif de l'invention, description donnée à titre d'exemple uniquement et en regard des dessins annexés sur lesquels:

  • Figure 1 représente une coupe verticale d'une piscine avec ses équipements et un appareil selon l'invention en action sur le fond;
  • Figure 2 illustre le déplacement de l'appareil sur le fond de la piscine;
  • Figure 3 est une vue de dessus d'un premier mode de réalisation d'un appareil selon l'invention;
  • Figure 4 est une coupe verticale suivant la ligne IV-IV du dispositif de la figure 3;
  • Figure 5 est une coupe verticale axiale d'une variante de réalisation de l'appareil de la figure 4;
  • Figure 6 est une coupe verticale d'un autre mode de réalisation d'un appareil selon l'invention, et
  • Figure 7 représente l'appareil de la figure 6, la "tête" en bas pour le nettoyage de la surface de l'eau de la piscine.
Other characteristics and advantages will emerge from the following description of embodiments of the device of the invention, description given by way of example only and with reference to the appended drawings in which:
  • Figure 1 shows a vertical section of a swimming pool with its equipment and an apparatus according to the invention in action on the bottom;
  • Figure 2 illustrates the movement of the device on the bottom of the pool;
  • Figure 3 is a top view of a first embodiment of an apparatus according to the invention;
  • Figure 4 is a vertical section along line IV-IV of the device of Figure 3;
  • Figure 5 is an axial vertical section of an alternative embodiment of the apparatus of Figure 4;
  • FIG. 6 is a vertical section of another embodiment of an apparatus according to the invention, and
  • Figure 7 shows the device of Figure 6, the "head" down for cleaning the surface of the pool water.

On a représenté sur la figure 1 une piscine 1 avec sa pompe 2 d'aspiration d'eau, son filtre 3 et une bouche 4 de refoulement de l'eau filtrée dans la piscine. Au fond de la piscine se déplace un engin automoteur 5 propulsé par réaction et relié par une canalisation souple 6 à la bouche de refoulement 4.FIG. 1 shows a swimming pool 1 with its water suction pump 2, its filter 3 and a mouth 4 for discharging the filtered water into the swimming pool. At the bottom of the pool is a self-propelled machine 5 propelled by reaction and connected by a flexible pipe 6 to the discharge mouth 4.

Les figures 3 et 4 représentent schématiquement un mode de réalisation de l'engin 5 schématisé sur la figure 1.FIGS. 3 and 4 schematically represent an embodiment of the machine 5 shown diagrammatically in FIG. 1.

L'appareil représenté sur les figures 3 et 4 est constitué d'un carter 7 en forme de galette circulaire ou cylindre aplati d'axe vertical ouvert à sa partie inférieure et présentant à sa partie supérieure un orifice circulaire 8 coaxial au carter 7, dit orifice de sortie d'eau.The apparatus shown in FIGS. 3 and 4 consists of a casing 7 in the form of a circular wafer or flattened cylinder with a vertical axis open at its lower part and having at its upper part a circular orifice 8 coaxial with the casing 7, called water outlet port.

L'orifice inférieur est presque totalement obturé par un fond 9 amovible délimitant seulement avec le rebord inférieur du carter un orifice 10 dit d'aspiration en forme de fenêtre arquée étroite, s'étendant sur environ 120° de la circonférence du carter 7.The lower orifice is almost completely closed off by a removable bottom 9 delimiting only with the lower edge of the casing a so-called orifice 10 of suction in the form of a narrow arched window, extending over approximately 120 ° from the circumference of the casing 7.

Du côté opposé à la bouche d'aspiration 10 le fond 9 est muni de roulettes orientables 11, cependant qu'au droit de ladite bouche le rebord inférieur du carter 7 est muni d'une brosse 12 en forme de cordon de même forme et longueur. La brosse arquée 12 et les roulettes 11 maintiennent l'appareil à distance suffisante du fond de la piscine pour permettre son déplacement et l'aspiration convenable des impuretés et débris divers jonchant le fond, après un brossage préalable de la surface à nettoyer.On the side opposite to the suction mouth 10, the bottom 9 is provided with orientable rollers 11, however, in line with said mouth, the lower edge of the casing 7 is provided with a brush 12 in the form of a cord of the same shape and length. . The arched brush 12 and the rollers 11 keep the device at a sufficient distance from the bottom of the swimming pool to allow its movement and the suitable suction of the impurities and various debris strewn on the bottom, after prior brushing of the surface to be cleaned.

A l'intérieur du carter 7 est disposé un filtre annulaire F, du type cartouche lavable par exemple, interposé entre la bouche d'aspiration 10 et l'orifice de sortie d'eau 8.Inside the casing 7 is arranged an annular filter F, of the washable cartridge type for example, interposed between the suction mouth 10 and the water outlet orifice 8.

Cet orifice fait communiquer le carter 7 avec un dispositif de propulsion hydraulique par réaction 13 communément appelé hydro-injecteur.This orifice communicates the casing 7 with a hydraulic propulsion device by reaction 13 commonly called hydro-injector.

Un tel dispositif est bien connu et n'a pas besoin d'être décrit en détail. Il comprend une tuyère propulsive 14 dont l'entrée est branchée sur l'orifice de sortie d'eau 8 et un injecteur 15 débouchant dans l'axe de la tuyère 14 et relié à un orifice 16 dit d'injection coaxial à l'orifice 8 et raccordé par un raccord tournant 17 avec la canalisation souple 6.Such a device is well known and does not need to be described in detail. It comprises a propellant nozzle 14 whose inlet is connected to the water outlet orifice 8 and an injector 15 opening in the axis of the nozzle 14 and connected to an orifice 16 said to be coaxial injection to the orifice 8 and connected by a rotary connector 17 with the flexible pipe 6.

Le corps de l'hydro-injecteur 13 a une forme générale de T, la tuyère 14 étant disposée à l'horizontale. Par ailleurs, la sortie 14a de la tuyère (figure 3) est dirigée sur le côté de sorte que l'axe 18 de poussée de l'eau éjectée ne coupe pas l'axe vertical de l'appareil mais soit déporté de façon à couper un aileron déflecteur plan vertical 19 monté fixe sur l'ensemble carter-hydro-injecteur.The body of the hydro-injector 13 has a general shape of T, the nozzle 14 being arranged horizontally. Furthermore, the outlet 14a of the nozzle (FIG. 3) is directed to the side so that the thrust axis 18 of the ejected water does not cut the vertical axis of the device but is offset so as to cut a vertical plane deflector fin 19 fixedly mounted on the casing-hydro-injector assembly.

La position angulaire (figure 3) de la tuyère 14 et de l'aileron 19 par rapport à l'ouverture de la bouche d'aspiration 10 est déterminée de façon que dans l'eau la conjugaison de la force propulsive 18 avec la réaction à l'avancement opérée par l'aileron 19 engendre une force résultante déplaçant l'appareil dans une direction 20 dans l'axe de la bouche d'aspiration 10.The angular position (Figure 3) of the nozzle 14 and the fin 19 relative to the opening of the suction mouth 10 is determined so that in water the combination of the propelling force 18 with the reaction to the advancement operated by the fin 19 generates a resultant force moving the apparatus in a direction 20 in the axis of the suction mouth 10.

La trajectoire de l'appareil en mouvement sur le fond de la piscine est représentée sur la figure 2. Elle est à peu près similaire à celle d'une boule de billard qui heurte successivement les bandes du billard et repart en sorte qu'elle ne repasse pratiquement jamais au même endroit et arrive donc, au bout d'un certain nombre de changements de direction successifs, à "couvrir" la totalité de la surface sur laquelle elle se déplace.The trajectory of the moving device on the bottom of the pool is shown in Figure 2. It is roughly similar to that of a billiard ball which successively strikes the billiard strips and leaves so that it does not almost never goes back to the same place and therefore succeeds, after a certain number of successive changes of direction, in "covering" the entire surface on which it moves.

En l'absence d'obstacle l'appareil 5 se déplace de manière rectiligne. Arrivé en butée (A) contre la paroi de la piscine, la résistance à l'avancement procurée par l'aileron 19 disparaît et le mouvement de rotation qu'a tendance à appliquer la force propulsive désaxée 18 sur l'appareil 5 n'est plus compensée en sorte que l'appareil 5 va sensiblement pivoter sur lui-même (B) autour de son axe vertical jusqu'à ce que la réaction de la paroi disparaisse (C) et que l'aileron 19 reprenne son plein effet de compensation. A ce moment l'appareil 5 se trouve orienté dans la direction 21 et se déplace pratiquement en ligne droite. Sur la figure 2 on a représenté par souci de clarté trois positions décalées A, B, C de l'appareil lors de la rencontre avec la paroi. En réalité les trois positions sont approximativement superposées.In the absence of an obstacle, the apparatus 5 moves in a rectilinear manner. Arrived in abutment (A) against the wall of the pool, the resistance to advancement provided by the fin 19 disappears and the rotational movement that tends to apply the offset propulsive force 18 on the device 5 is not more compensated so that the device 5 will substantially pivot on itself (B) around its vertical axis until the reaction of the wall disappears (C) and the fin 19 resumes its full compensating effect . At this time the device 5 is oriented in the direction 21 and moves practically in a straight line. In FIG. 2, for the sake of clarity, three offset positions A, B, C of the apparatus have been shown during the encounter with the wall. In reality the three positions are approximately superimposed.

A la rencontre en D avec une autre paroi de la piscine l'appareil va virer à nouveau de bord et repartir suivant la direction 22, pour virer à nouveau en E et repartir suivant la direction 23; et ainsi de suite de manière à "balayer" la totalité de la surface du fond de la piscine au bout d'un certain temps.At the meeting at D with another wall of the swimming pool, the apparatus will turn again from edge and set off again in direction 22, to turn again at E and set off again according to direction 23; and so on so as to "sweep" the entire surface of the bottom of the pool after a certain time.

Au cours de ses déplacements la brosse 12 brasse le fond en soulevant les dépôts. Ceux-ci sont alors aspirés par la dépression créée à l'intérieur du carter 7 par l'hydro-injecteur 13 et retenus par le filtre F. L'eau aspirée débarrassée de ses débris divers se dirige alors vers la tuyère 14 et participe à l'effort propulsif de l'engin.During its movements the brush 12 stirs the bottom by lifting the deposits. These are then sucked in by the depression created at inside the casing 7 by the hydro-injector 13 and retained by the filter F. The sucked water freed of its various debris then goes to the nozzle 14 and participates in the propulsive force of the machine.

Le branchement de la canalisation 6 sur le refoulement 4 de la piscine permet un fonctionnement normal de l'installation de filtration de l'eau de la piscine qui élimine les impuretés qui n'auraient pas été arrêtées par le filtre F de l'appareil 5. Ce dernier ne nécessite donc ni installation extérieure, ni énergie supplémentaire.The connection of the pipe 6 to the pool outlet 4 allows normal operation of the pool water filtration system which eliminates impurities which would not have been stopped by the filter F of the device 5 The latter therefore requires no external installation or additional energy.

La figure 5 illustre une variante de réalisation dans laquelle l'ensemble aileron déflecteur 19 - hydro-injecteur 13 est monté rotatif sur le carter 7' à la manière d'une girouette.FIG. 5 illustrates an alternative embodiment in which the deflector fin 19 - hydro-injector 13 assembly is rotatably mounted on the casing 7 'in the manner of a wind vane.

La bouche d'aspiration 10' est, par suite, totalement circulaire et le fond rapporté amovible 9' est muni d'une brosse 12' en forme de cordon circulaire fixé à la périphérie du fond. Ce dernier comporte, comme le fond 9 du mode de réalisation de la figure 4, un rebord interne 24 sur toute la longueur de la bouche 10', afin de retenir prisonniers les débris et impuretés dans l'appareil lors de la sortie hors de l'eau de l'appareil, pour le vider en particulier et changer le filtre. L'appareil repose sur le fond de la piscine uniquement par l'intermédiaire du cordon de brosse 12'.The suction mouth 10 'is therefore completely circular and the removable insert 9' is provided with a brush 12 'in the form of a circular bead fixed to the periphery of the bottom. The latter comprises, like the bottom 9 of the embodiment of FIG. 4, an internal rim 24 over the entire length of the mouth 10 ′, in order to trap the debris and impurities in the device when it leaves the water from the appliance, in particular to empty it and change the filter. The device rests on the bottom of the pool only via the brush cord 12 '.

Il est noter que l'appareil n'utilise pas l'adhérence sur le fond de la piscine pour se déplacer et, de ce fait, son déplacement sur un fond incliné ne pose pas de problème car il n'y a pas de risque de glissement.It should be noted that the device does not use the grip on the bottom of the pool to move and, therefore, its movement on an inclined bottom is not a problem because there is no risk of slip.

Les figures 6 et 7 représentent un autre mode de réalisation dans lequel le moyen propulsif à réaction est constitué par une turbine 25 disposée dans un conduit coudé 26 faisant office de tuyère et montée rotative sur l'orifice de sortie d'eau 8 du carter 7" de l'appareil.Figures 6 and 7 show another embodiment in which the propellant reaction is constituted by a turbine 25 disposed in a bent conduit 26 serving as a nozzle and rotatably mounted on the water outlet orifice 8 of the casing 7 "on the device.

La turbine 25, d'axe coaxial à l'axe du carter 7", est entraînée par un moteur électrique 27 fixé sur le fond 9" à l'intérieur du filtre annulaire F. La bouche d'aspiration 10" est circulaire et munie d'un cordon de brosse 12' comme dans le dispositif de la figure 5.The turbine 25, with an axis coaxial with the axis of the casing 7 ", is driven by an electric motor 27 fixed on the bottom 9" inside the annular filter F. The suction mouth 10 "is circular and provided a brush bead 12 ′ as in the device in FIG. 5.

La tuyère tournante 26 a son extrémité également orientée de manière désaxée par rapport à l'axe vertical de l'appareil et est également munie d'un aileron déflecteur 19". L'appareil se déplace exactement comme ceux des figures précédentes.The rotating nozzle 26 has its end also oriented offset from the vertical axis of the device and is also provided with a deflector fin 19 ". The device moves exactly like those of the previous figures.

L'alimentation électrique du moteur 27 est assurée, soit par un cordon flottant 28 relié à une source électrique à terre (secteur ou autre), soit à partir d'une batterie d'accumulateurs embarquée comme représenté symboliquement en 29. Dans cette dernière version l'appareil peut être utilisé pour nettoyer la surface de l'eau 30 (figure 7) de la piscine en le mettant la "tête" en bas et le faisant flotter grâce à un ou plusieurs flotteurs amovibles 31 fixés sous le fond 9" et sur le carter 7" de manière que la bouche 10" aspire la pellicule d'eau de surface de la piscine.The power supply to the motor 27 is ensured either by a floating cord 28 connected to a grounded electrical source (sector or other), or from an on-board storage battery as symbolically represented at 29. In this latter version the device can be used to clean the surface of the water 30 (FIG. 7) of the swimming pool by putting it "head" down and making it float thanks to one or more removable floats 31 fixed under the bottom 9 "and on the casing 7 "so that the mouth 10" sucks the film of surface water from the pool.

En position renversée l'appareil se déplace tout aussi facilement par réaction et pivotera et repartira dans une autre direction en touchant le bord de la piscine.In the inverted position the device moves just as easily by reaction and will pivot and leave in another direction by touching the edge of the pool.

Enfin, l'invention n'est évidemment pas limitée aux modes de réalisation représentés et décrits ci-dessus mais en couvre au contraire toutes les variantes prévues par les revendications, notamment en ce qui concerne les formes et dispositions de la tuyère propulsive et de l'aileron déflecteur aussi bien l'un par rapport à l'autre que vis à vis du carter de l'appareil.Finally, the invention is obviously not limited to the embodiments shown and described above but on the contrary covers all the variants provided for by the claims, in particular as regards the shapes and arrangements of the propellant nozzle and of the deflector fin both relative to each other and with respect to the housing of the device.

Claims (8)

1. Device for automatic cleaning, in particular for the bottom of a swimming pool (1) or similar, comprising a suction case (7) in the form of a flattened cylinder with a vertical axis, equipped with a removable bottom (9) which forms therewith a suction aperture or mouth (10) situated in a plane roughly parallel to the surface to be cleaned and at a short distance from the latter; an outlet (8) for the water sucked into this; a filter (F) disposed in the case between the said suction mouth and the said outlet; a means (13, 26) joined to the case (7) which can draw up the water from the case and send it along a pipe in the case, which is roughly parallel with the surface to be cleaned; and a deflector flap (19) joined to the case, the axis of the propulsive jet of the pipe being laterally offset in relation to the vertical axis of the case and intersecting the plane of the deflector flap.
2. Device as claimed in claim 1, characterized in that the said means of propulsion is formed from a water jet pump (13) comprising a pump (15) connected to a flexible tube (6), preferably by means of a rotatable coupling (17) the other end of which is attached to a discharge inlet (4) of the swimming pool (1).
3. Device as claimed in claim 2, characterized in that the water jet pump (13) is fixed onto the case (7), the suction mouth (10) being in the form of an arc and disposed in the axis of movement (20) of the device (5) and at the front of this.
4. Device as claimed in claim 3, characterized in that the suction mouth (10) is equipped along one of its edges with a line of brushes (12), with directable rollers (11) being attached under the bottom (9) on the opposite side to the said suction mouth.
5. Device as claimed in claim 2, characterized in that the water jet pump (13) is mounted with the deflector flap (19) on the case (7') in such a way that it can rotate, the suction mouth (10') being circular and equipped with a line of brushes (12') which is also circular.
6. Device as claimed in claim 1, characterized in that the said means of propulsion consists of a turbine (25) driven by a built-in electric motor (27), disposed in the said pipe (26), the latter being mounted and capable of rotation, with the deflector flap (19") on the housing (7") of the device.
7. Device as claimed in claim 6, characterized in that the electricity for the motor (27) incorporated in the case is supplied by storage batteries (29) which are also incorporated in the case and that removable floats (31) may be attached to the bottom (9") and/orthe housing (7") of the device, and allow it to move in an inverted position along the surface of the water.
8. Device as claimed in any one of claims 1 to 7, characterized in that the said water outlet (8) of the case is coaxial to the vertical axis of the device and the filter (F) is an annular filter disposed in the case and coaxial to the said outlet (8).
EP86904846A 1985-08-06 1986-08-05 Apparatus intended for automatic cleaning, particularly of the bottom of a swimming-pool Expired - Lifetime EP0232351B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8512183 1985-08-06
FR8512183A FR2586054B1 (en) 1985-08-06 1985-08-06 APPARATUS FOR AUTOMATIC CLEANING, PARTICULARLY FROM THE BOTTOM OF A POOL

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EP0232351A1 EP0232351A1 (en) 1987-08-19
EP0232351B1 true EP0232351B1 (en) 1990-07-04

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US (1) US4835809A (en)
EP (1) EP0232351B1 (en)
AU (1) AU584736B2 (en)
DE (1) DE3672478D1 (en)
FR (1) FR2586054B1 (en)
WO (1) WO1987000883A1 (en)

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AU584736B2 (en) 1989-06-01
WO1987000883A1 (en) 1987-02-12
EP0232351A1 (en) 1987-08-19
DE3672478D1 (en) 1990-08-09
FR2586054A1 (en) 1987-02-13
US4835809A (en) 1989-06-06
AU6193786A (en) 1987-03-05
FR2586054B1 (en) 1987-12-04

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