EP4033053A1 - Automatic winder-unwinder of a tarpaulin over the surface of a swimming pool - Google Patents

Automatic winder-unwinder of a tarpaulin over the surface of a swimming pool Download PDF

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Publication number
EP4033053A1
EP4033053A1 EP22151318.7A EP22151318A EP4033053A1 EP 4033053 A1 EP4033053 A1 EP 4033053A1 EP 22151318 A EP22151318 A EP 22151318A EP 4033053 A1 EP4033053 A1 EP 4033053A1
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EP
European Patent Office
Prior art keywords
winder
unwinder
pulley
tarpaulin
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22151318.7A
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German (de)
French (fr)
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EP4033053C0 (en
EP4033053B1 (en
Inventor
Clément Chapaton
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Annonay Productions France SAS
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Annonay Productions France SAS
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Publication of EP4033053A1 publication Critical patent/EP4033053A1/en
Application granted granted Critical
Publication of EP4033053C0 publication Critical patent/EP4033053C0/en
Publication of EP4033053B1 publication Critical patent/EP4033053B1/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
    • E04H4/06—Safety devices; Coverings for baths
    • E04H4/10—Coverings of flexible material
    • E04H4/101—Coverings of flexible material wound-up on a fixed axis

Definitions

  • the present invention relates to the field of systems for covering surfaces to be protected.
  • the invention relates to an automatic tarpaulin winder-unwinder above the surface of a swimming pool.
  • the invention advantageously makes it possible to unroll and roll up the swimming pool cover without requiring the intervention of a user.
  • the invention also makes it possible to secure the swimming pool and to protect it against bad weather and dirt.
  • tarpaulin made of impermeable, flexible or rigid material or even formed of slats interconnected by a flexible junction allowing the tarpaulin to be rolled up on itself.
  • Bar covers are also known, consisting of a flexible cover crossed by rigid bars allowing them to rest on the copings bordering the swimming pool.
  • the tarpaulins include means for attaching to the ground making it possible to fix a first end of the tarpaulin to the coping of an extreme edge of the swimming pool.
  • a cover is generally unrolled manually, either by unrolling the cover on the side edges of the pool, or by pulling a strap attached to the other end of the cover, above the pool.
  • this method was considered restrictive because it requires great physical strength and sometimes requires several people to unroll the tarpaulin.
  • this method often leads to premature wear of the tarpaulin due to friction against the copings.
  • tarpaulin reels-unwinders positioned at one end of the swimming pool, comprising a fixed frame provided with a motorized rotating tube, on which it is possible to roll up the tarpaulin.
  • the tube begins to rotate to roll up/unroll the cover in the swimming pool.
  • this type of winder-unwinder does not make it possible to fully control the direction in which the cover unwinds or its positioning on the swimming pool. Therefore, even if this system makes it possible to limit the physical efforts and to simplify the maneuver, it lacks control and can cause folds on the tarpaulin as well as friction against the edges which tend to degrade the tarpaulin.
  • reels-unwinders include drive wheels allowing the reel-unwinder to move along the pool.
  • a motor and coupling means such as for example a chain, make it possible to couple the rotation of the tube with that of the driving wheels.
  • winder-unwinders generally present problems with the unwinding of the cover. Indeed, the motor is driven at a constant rotational speed.
  • the unwinding speed of the tarpaulin is variable depending on the diameter of the cover rolled up on the winding tube.
  • the document FR3084095 describes an assembly kit for a winder-unwinder comprising synchronization means in the form of a wheel including a core, housed in the wheel and capable of pivoting within the wheel.
  • synchronization means in the form of a wheel including a core, housed in the wheel and capable of pivoting within the wheel.
  • the technical problem that the invention sets out to solve is to develop a tarpaulin winder-unwinder whose sliding system is mechanically simpler, less expensive to install and easier to replace.
  • Such a winder-unwinder is characterized in that the transmission means further include a freewheel mechanism interposed between the upper pulley and the motor, said freewheel mechanism allowing, on the one hand, the driving of the upper pulley by the motor during the unwinding phase and on the other hand, the separation of the upper pulley and the motor during the winding phase.
  • Such a winder-unwinder is also characterized in that throughout the unwinding phase, the reduction ratio between the upper pulley and the lower pulley is less than the ratio between the maximum winding radius of the tarpaulin around the winding tube and the radius of the drive wheel so that the transmission member slips on the low pulley.
  • the reduction ratio between the high pulley and the low pulley is equal to the ratio between the radius of the high pulley and that of the low pulley.
  • the maximum rolling radius of the tarpaulin is defined as the radius of the circle passing through the point belonging to the tarpaulin furthest from the center of the rolling tube.
  • the tarpaulin includes bars, it does not have a strictly cylindrical shape when rolled up.
  • the circle defined previously is virtual and passes through the point of the bar furthest from the center of the winding tube.
  • the winder-unwinder comprises a mechanically simpler sliding system compared to existing mechanisms. Indeed, slippage takes place between the low pulley, mounted on the central axis of the driving wheel, and the belt connecting the high pulley and the low pulley.
  • the reduction ratio between the high pulley and the low pulley is calculated so that the speed of rotation of the drive wheel is always greater over time than the unwinding speed of the cover. This is how the transmission member slips on the low pulley.
  • the transmission member is a belt because it has superior performance, namely a better drive/power ratio, and requires less maintenance than a chain, for example, which requires regular lubrication of its links.
  • the winder-unwinder further comprises a tensioning device capable of tensioning the belt.
  • a tensioner has several advantages. It allows precise control of the degree of belt tension to optimize drive through the upper and lower pulleys, so that slippage only occurs when necessary. Furthermore, the presence of a tensioning device also makes it possible to absorb the vibrations inherent to the system as well as those linked to the presence of obstacles in the path of the winder-unwinder. Thus, the longevity of the belt is generally increased.
  • the belt is a belt with a trapezoidal section.
  • the belt may also include a planar drive surface.
  • the flat surface of the belt allows high speed transmission for low effort.
  • V-belts offer the best combination of tensile performance, speed and life.
  • the V-section of the V-belt most often follows a groove in the upper and lower pulleys, so that the belt cannot slip and the transmission of torque is generally improved.
  • the trapezoidal shape of the belt therefore allows self-centering of the belt during the rotational movement around the upper and lower pulleys.
  • the transmission means include a transmission shaft between the drive wheels of the two movement modules.
  • the driving wheels are connected by an axis in order to allow their synchronization.
  • the winder-unwinder would adopt a crab-like gait due to the desynchronization of the wheels.
  • the presence of a transmission axis also makes it possible to reinforce the structure of the reel-unwinder and to prevent parts from twisting or deforming during the movement of the reel-unwinder or even that the tarpaulin s rolled up forming folds.
  • the non-drive wheels of the two modules are also connected by an axle. This makes it possible to provide additional reinforcement to the structure.
  • the displacement modules further comprise brushes capable of coming into contact at least in part with the periphery of the basin.
  • the brushes thus allow the debris present on the periphery of the swimming pool to be chased away, debris which could represent an obstacle to the advance of the reel-unwinder.
  • the winder-unwinder further comprises a rechargeable battery arranged to power the motor.
  • a battery makes it possible to free oneself from the disadvantages of the presence of a power cable.
  • the power cables have a fixed length, which limits the movement of the winder-unwinder.
  • the thread often tends to tangle and can sometimes obstruct the progress of the winder-unwinder.
  • the winder-unwinder comprises a photovoltaic panel, said photovoltaic panel being capable of recharging the battery.
  • a photovoltaic panel makes it possible to increase the operating autonomy of the winder-unwinder. Indeed, it is preferably used during the sunny season, during which the photovoltaic panel is most useful. Thus, it is not necessary to recharge the battery by connecting it to the mains.
  • the photovoltaic panel is fixed on the axle connecting the two non-drive wheels.
  • the photovoltaic panel is optimally exposed to the sun's rays.
  • the two modules comprise an identical chassis.
  • the skeleton of the two modules is identical even if the final modules are not. This characteristic makes it possible to limit the number of different parts to be produced. It also makes it possible to make the winder-unwinder reversible and to be able to mount the transmission means on one or the other of the modules, according to the needs of the user and according to the geometry of the swimming pool.
  • the winder-unwinder 100 of the invention comprises a winding tube 11 framed by two modules 20, 30 of movement.
  • the winding tube 11 has fixed dimensions such as a diameter of between 12 and 20 cm and a length slightly greater than the width of the swimming pool, typically between 4.4 and 4.7 m for a standard size swimming pool of 8x4m or between 5.4 and 5.7m for a standard size pool of 10x5m etc...
  • the winding tube 11 is preferably a hollow tube in order to lighten the structure of the winder-unwinder 100 and whose outer material is between 0.5 and 2 cm thick.
  • the winding tube 11 is made of a material resistant to deformation and corrosion, typically aluminum or stainless steel.
  • the winding tube 11 also includes means for attaching the tarpaulin to the winding tube 11. These attachment means are, for example, loops making it possible to insert straps connected to the tarpaulin.
  • the tarpaulin is typically a reinforced PVC cover with a width greater than the width of the swimming pool, for example exceeding 25 to 30 cm on each side of the swimming pool.
  • the PVC cover is pierced with first openings along its width, allowing the insertion of anodized aluminum bars, as well as other openings allowing the evacuation of rainwater.
  • the bars also have a width greater than the width of the pool, so that they come to rest on the copings bordering the pool.
  • the width of the winding tube 11 is greater than the width of the tarpaulin and the bars in order to allow them to wrap correctly around the winding tube 11.
  • the displacement modules 20, 30 are formed of an identical metal frame 42 , illustrated in the figure 2 , typically made of aluminum or stainless steel.
  • the metal frames 42 are preferably covered with a protective casing, not shown in the figures, having aesthetic properties as well as the purpose of protecting the mechanical and electronic parts against shocks and bad weather.
  • the metal frame 42 is composed of a plate 421, for example in the shape of a semicircle, coming into contact with the ends of the winding tube 11, of a support plate 425, perpendicular to the plate 421 and of two parts 426, 427, allowing the plate 421 to be joined to the support plate 425.
  • the support plate 425 and the perpendicular plate 421 can constitute two separate parts joined together by fastening means or even be formed from a single piece obtained by folding.
  • the plate 421 is pierced with a hole 422 at the level of which the winding tube 11 is fixed, rotatable relative to the plate 421.
  • the fixing is carried out by means of a part 51, visible on the picture 3 , formed of a cylindrical shaft 52 with a diameter of between 1 and 5 cm and a length of between 25 and 50 cm, comprising, at a first end, a disc with a diameter of between 10 and 15 cm, i.e. a diameter slightly smaller than the diameter of the winding tube, and with a thickness of between 2 and 5 cm.
  • Cylindrical shaft 52 also includes a second disc 53, identical to the first, positioned at a distance of between 10 and 15 cm from its other end.
  • This part 51 is inserted on each side of the winding tube 11, so that the free portion 56 of the cylindrical axis 52 protrudes from the winding tube 11 and that the disc 53 makes it possible to make the winding tube 11 waterproof. to the penetration of water or dirt which could weigh it down and/or damage it.
  • Part 51 is secured to winding tube 11 by means of screws 57 passing through winding tube 11 and being inserted into discs 54 and 53.
  • the assembly formed by the winding tube 11 and the parts 51 fixed to the ends of the winding tube 11 is then mounted, free to rotate, on the metal frames 42 by housing the cylindrical axes 52 in the holes 422, provided at the level of the plates 421 of the metal frames 42.
  • the cylindrical rods 52 are held to the metal frames 42 by the combination of two holding pieces 58, 59, positioned on either side of the plate 421 and secured to one another. the other by the presence of screws passing through the plate 421 of the metal frame 42.
  • the support plate 425 also has two openings 428, 429 allowing the wheels 25, 35, 27, 37 to be accommodated.
  • the winder-unwinder 100 comprises for this purpose two drive wheels 25, 35 with a diameter of between 25 and 40 cm.
  • the drive wheels 25, 35 are made up of a coating 251, preferably made of rubber, mounted on a rim 252, preferably made of plastic, through which an axis of rotation 253 passes through its center, as illustrated in the figure 5 .
  • the lower part of the drive wheel 25, 35 is inserted into the opening 428 of the metal frame 42 and the axle 253 is housed in the circular openings 254 and 255, visible on the picture 2 .
  • Shaft 253 is held by holding pieces similar to piece 58.
  • the winder unwinder also comprises two non-drive wheels 27, 37 with a diameter of between 10 and 15 cm.
  • the non-drive wheels 27, 37 are made up of a coating 271, preferably made of rubber, mounted on a rim 272, preferably made of plastic, through which an axis of rotation 273 passes through its center, as illustrated in the figure 5 .
  • the lower part of the non-drive wheel 27, 37 is inserted into the opening 429 of the metal frame 42 and the axle 253 is housed in the circular openings 274 and 275, visible on the picture 2 .
  • the axle 273 is held by retaining parts such as a pin and a retaining clip 276.
  • the drive wheel 35 of the movement module 30 is connected to the second drive wheel 25 of the second movement module 20 by a transmission shaft 41.
  • the non-drive wheels 27, 37 are also connected by a shaft 43, visible on the figure 6 . These wheels 27, 37 are driven during the movements of the winder-unwinder 100.
  • the shaft 43 may have a section in the shape of a circle or a polygon without changing the invention.
  • the rotation of the drive wheels 25, 35 and the winding tube 11 is made possible by the presence of a motor 33, located on the module 30 of movement.
  • the motor 33 is controlled via the control box 41.
  • the latter comprises for example means for receiving a radio signal, such as a Bluetooth signal, or an infrared signal from a remote control, a smartphone or a tablet and allowing to initiate rolling up and/or unrolling of the tarpaulin.
  • the winder-unwinder can be controlled via an application, installed on the smartphone or tablet.
  • Control means can also be present directly on the control box 41, such as buttons and/or switches, for example.
  • the winder-unwinder 100 can be powered by connection to the mains via a wired connection or even by a battery 40, the charge of which can be carried out by connecting it to the mains and/or by means of a photovoltaic panel 44.
  • the photovoltaic panel 44 is fixed on the axis 43 connecting the non-drive wheels 27, 37, as illustrated in the figure 6 .
  • the transmission between the motor 33 and the winding tube 11 is carried out by means of two toothed wheels 61, 62.
  • the first toothed wheel 62 is integral with the axis of rotation of the motor 33 and the second toothed wheel 61 is connected to the free portion 56 of the cylindrical shaft 52.
  • the first toothed wheel 62 is driven in rotation by the motor 33, the latter drives the second toothed wheel 61 by gear effect. In this way, the winding tube 11 is also driven in rotation by the motor 33.
  • the free portion 56 of the cylindrical shaft 52 also includes a freewheel mechanism 34, surmounted by a high pulley 32, not shown on the figure 7 , but visible on figure 1 and 4 .
  • the freewheel mechanism 34 is configured to transmit the torque from the motor 33 to the upper pulley 32 during the unwinding phase.
  • the freewheel mechanism 34 is also configured to prevent the transmission of torque from the motor 33 to the upper pulley 32 during the winding phase, so that the drive wheels 25, 35 enter into rotation freely under the effect of the pulling force exerted by the cover, connected to one end of the swimming pool, during the advancement of the winder-unwinder 100.
  • the driving wheel 35 is equipped with a low pulley 39, fixed on its axis of rotation 273.
  • the high pulley 32 and the low pulley 39 are, for their part, connected by a transmission member, typically a belt 36.
  • the belt 36 is, for example, a flat belt or even a toothed belt positioned on the flat periphery of a pulley.
  • the belt 36 has a trapezoidal section and a flat surface allowing it to be inserted into the notch, also trapezoidal in shape, of the upper and lower pulleys 32, 39.
  • the belt 36 is kept in tension at the level of its upper arm.
  • a tensioning device 38 comprising a fixed portion 381, connected to the metal frame 42 by means of a screw for example.
  • the tensioning device 38 also comprises a movable portion 482 including a spring system making it possible to bear against the belt 36.
  • the spring system makes it possible to continue to exert the same force on the belt 36 as the latter relaxes.
  • this mechanical arrangement allows motor 33 to rotate upper pulley 32, then lower pulley 39, via belt 36. As drive wheel 35 is integral with the lower pulley 39, this is also driven in rotation by motor 33. Similarly, the torque of motor 33 is also transmitted to second drive wheel 25 via transmission shaft 41.
  • the modules 20, 30 include brushes 45 located under the support plate 425, making it possible to clean the surface on which the winder-unwinder 100 moves in order to avoid deflecting and/or stop its trajectory.
  • the winder-unwinder has two different phases: a winding phase and an unwinding phase of the tarpaulin.
  • the freewheel mechanism 34 blocks the transmission between the motor 33 and the upper pulley 32.
  • the motor 33 therefore drives only the rolling tube 11.
  • the driving wheels 25, 35 are for their part left free to rotate.
  • the winding tube 11 is rotated by the motor 33 and winds up the cover, held at one end.
  • the traction exerted by the stretched tarpaulin thus makes it possible to set the driving wheels 25, 35 in rotation.
  • the freewheel mechanism 34 does not block the transmission between the motor 33 and the upper pulley 32.
  • the motor 33 therefore drives both the driving wheels 25, 35, via the two pulleys 32, 39 and the belt 36, and the winding tube 11, via the two toothed wheels 61, 62.
  • the reduction ratio between the two pulleys 32, 39 makes it possible to rotate the drive wheels 25, 35 at higher speed. Adjusting the slip condition allows the belt 36 to slip on the low pulley 39 when the speed of the driving wheels 25, 35 exceeds a certain threshold.
  • the figure 8 makes it possible to translate the slipping condition of the belt 36 on the low pulley 39.
  • R T (t) the radius of the tarp. This radius R T (t) decreases over time, as the tarpaulin 12 is unrolled.
  • R h is the radius of the high pulley 32 and R b is the radius of the low pulley 39.
  • R R is the radius of the drive wheel 35.
  • the winding speed V E of a point of the rolled end of the tarpaulin is equal to the radius of the tarpaulin R T (t) multiplied by the angular speed W H of the winding tube 11, i.e. R T (t)* W H .
  • the forward speed V E of a point at the end of the drive wheel 25, 35 is also equal to the radius R R of the drive wheel 25, 35 multiplied by the angular speed W R of the drive wheel 25, 35, ie R R *W R .
  • the reduction ratio between the upper pulley 32 and the lower pulley 39 is preferably lower than the ratio between the radius of winding of the tarpaulin R T (t) around the winding tube 11 and the radius of the driving wheel R R .
  • R Tmax is defined as the maximum rolling radius of the tarpaulin 12 around the rolling tube 11.
  • R T (t)/R R ⁇ R Tmax /R R Therefore R H /R B ⁇ R Tmax /R R at any instant of the progress.
  • the slip condition is obtained when the reduction ratio between the upper pulley 32 and the lower pulley 39 is less than the ratio between the maximum winding radius R Tmax of the tarpaulin 12 around the winding tube 11 and the radius of the driving wheel R R .
  • the invention therefore proposes a tarpaulin winder-unwinder whose sliding system is mechanically simpler, less expensive to install and easier to replace.

Abstract

L'invention concerne un enrouleur-dérouleur (100) de bâche comprenant un tube d'enroulement (11), une bâche, un moteur (33), deux modules (20, 30) de déplacement comportant chacun une roue motrice (35), une roue non-motrice (37) et des moyens de transmission du couple du moteur aux roues motrices. Ces moyens incluent une poulie haute (32), entrainée par le moteur, une poulie basse (39), fixée à une roue motrice, une organe de transmission (36) reliant les deux poulies et un mécanisme de roue libre (34) interposé entre la poulie haute et le moteur et durant toute la phase de déroulement, le rapport de réduction entre la poulie haute et la poulie basse est inférieur au rapport entre le rayon d'enroulement maximal (RTmax) de la bâche autour du tube d'enroulement et le rayon (RR) de la roue motrice de sorte que l'organe de transmission patine sur la poulie basse.

Figure imgaf001
The invention relates to a tarpaulin winder-unwinder (100) comprising a winding tube (11), a tarpaulin, a motor (33), two displacement modules (20, 30) each comprising a drive wheel (35), a non-drive wheel (37) and means for transmitting torque from the engine to the drive wheels. These means include a high pulley (32), driven by the motor, a low pulley (39), fixed to a drive wheel, a transmission member (36) connecting the two pulleys and a freewheel mechanism (34) interposed between the upper pulley and the motor and throughout the unwinding phase, the reduction ratio between the upper pulley and the lower pulley is less than the ratio between the maximum rolling radius (R Tmax ) of the tarpaulin around the rolling tube and the radius (R R ) of the drive wheel so that the transmission member slips on the low pulley.
Figure imgaf001

Description

Domaine techniqueTechnical area

La présente invention concerne le domaine des systèmes de couverture de surfaces à protéger. En particulier, l'invention concerne un enrouleur-dérouleur automatique de bâche au-dessus de la surface d'une piscine.The present invention relates to the field of systems for covering surfaces to be protected. In particular, the invention relates to an automatic tarpaulin winder-unwinder above the surface of a swimming pool.

L'invention permet avantageusement de dérouler et enrouler la bâche de piscine sans requérir l'intervention d'un utilisateur. L'invention permet en outre de sécuriser la piscine et de la protéger contre les intempéries et la saleté.The invention advantageously makes it possible to unroll and roll up the swimming pool cover without requiring the intervention of a user. The invention also makes it possible to secure the swimming pool and to protect it against bad weather and dirt.

Art antérieurPrior art

Il existe de nombreuses solutions permettant de couvrir une piscine. Par exemple, il est possible d'utiliser une bâche en matière imperméable, souple ou rigide ou encore formée de lattes reliées entre elles par une jonction flexible permettant d'enrouler la bâche sur elle-même. On connait encore les bâches à barres, formées d'une couverture souple traversée par des barres rigides permettant de reposer sur les margelles bordant la piscine.There are many solutions for covering a swimming pool. For example, it is possible to use a tarpaulin made of impermeable, flexible or rigid material or even formed of slats interconnected by a flexible junction allowing the tarpaulin to be rolled up on itself. Bar covers are also known, consisting of a flexible cover crossed by rigid bars allowing them to rest on the copings bordering the swimming pool.

De manière conventionnelle, les bâches comportent des moyens d'attache au sol permettant de fixer une première extrémité de la bâche sur la margelle d'un bord extrême de la piscine. Dans les installations les plus basiques, le déroulement d'une telle bâche est généralement effectué manuellement, soit par déroulement de la bâche sur les margelles latérales de la piscine, soit par traction d'une sangle fixée à l'autre extrémité de la bâche, au-dessus de la piscine. Cependant cette méthode a été jugée contraignante car elle demande une grande force physique et requiert parfois plusieurs personnes pour dérouler la bâche. Par ailleurs, cette méthode entraine souvent une usure prématurée la bâche du fait du frottement contre les margelles. Pour pallier ces inconvénients, il existe des enrouleurs-dérouleurs de bâches positionnés à une extrémité de la piscine, comportant un châssis fixe munis d'un tube rotatif motorisé, sur lequel il est possible d'enrouler la bâche. Ainsi, lors des phases d'enroulement et de déroulement, le tube entre en rotation pour enrouler/dérouler la bâche dans la piscine. Toutefois, ce type d'enrouleurs-dérouleurs ne permet pas de maitriser totalement la direction de déroulement de la bâche ni son positionnement sur la piscine. Par conséquent, même si ce système permet de limiter les efforts physiques et de simplifier la manœuvre, il manque de contrôle et peut entrainer des plis sur la bâche ainsi que des frottements contre les bordures qui tendent à dégrader la bâche.Conventionally, the tarpaulins include means for attaching to the ground making it possible to fix a first end of the tarpaulin to the coping of an extreme edge of the swimming pool. In the most basic installations, such a cover is generally unrolled manually, either by unrolling the cover on the side edges of the pool, or by pulling a strap attached to the other end of the cover, above the pool. However, this method was considered restrictive because it requires great physical strength and sometimes requires several people to unroll the tarpaulin. Moreover, this method often leads to premature wear of the tarpaulin due to friction against the copings. To overcome these drawbacks, there are tarpaulin reels-unwinders positioned at one end of the swimming pool, comprising a fixed frame provided with a motorized rotating tube, on which it is possible to roll up the tarpaulin. Thus, during the rolling and unrolling phases, the tube begins to rotate to roll up/unroll the cover in the swimming pool. However, this type of winder-unwinder does not make it possible to fully control the direction in which the cover unwinds or its positioning on the swimming pool. Therefore, even if this system makes it possible to limit the physical efforts and to simplify the maneuver, it lacks control and can cause folds on the tarpaulin as well as friction against the edges which tend to degrade the tarpaulin.

Pour pallier ce manque de contrôle, certains enrouleurs-dérouleurs comprennent des roues motrices permettant de mouvoir l'enrouleur-dérouleur le long de la piscine. Un moteur et des moyens de couplage, comme par exemple une chaine, permettent de coupler la rotation du tube avec celle des roues motrices. Néanmoins, de tels enrouleur-dérouleurs présentent généralement des problèmes de déroulement de la couverture. En effet, le moteur est entrainé à une vitesse de rotation constante. Or la vitesse de déroulement de la bâche est variable en fonction du diamètre de la couverture enroulée sur le tube d'enroulement. Ainsi, à mesure que le diamètre de la couverture enroulée diminue avec le déploiement de la couverture, cela entraine également une diminution de la vitesse des roues et donc du déroulement de la bâche. Pour pallier cet inconvénient, il a été proposé d'employer de moyens de synchronisation de la vitesse d'avancement de l'enrouleur-dérouleur à la vitesse de déroulement de la couverture. La synchronisation est obtenue par des moyens de patinage, localisés au niveau des roues motrices de l'enrouleur-dérouleur.To overcome this lack of control, some reels-unwinders include drive wheels allowing the reel-unwinder to move along the pool. A motor and coupling means, such as for example a chain, make it possible to couple the rotation of the tube with that of the driving wheels. Nevertheless, such winder-unwinders generally present problems with the unwinding of the cover. Indeed, the motor is driven at a constant rotational speed. However, the unwinding speed of the tarpaulin is variable depending on the diameter of the cover rolled up on the winding tube. Thus, as the diameter of the rolled up cover decreases with the deployment of the cover, this also leads to a decrease in the speed of the wheels and therefore the unrolling of the tarp. To overcome this drawback, it has been proposed to use means for synchronizing the forward speed of the winder-unwinder to the unwinding speed of the cover. Synchronization is obtained by slip means, located at the drive wheels of the winder-unwinder.

Selon un premier exemple, ce sont les roues motrices qui patinent directement sur le sol. Selon un second exemple, le document FR3084095 décrit un kit d'assemblage pour enrouleur-dérouleur comprenant des moyens de synchronisation se présentant sous la forme d'une roue incluant une âme, logée dans la roue et apte à pivoter au sein de la roue. Ainsi, lors de la phase d'enroulement, lorsque la vitesse imposée à la roue dépasse un certain seuil, l'âme se découple de la jante et se met à patiner de sorte que la roue n'est plus entrainée.According to a first example, it is the driving wheels which skid directly on the ground. According to a second example, the document FR3084095 describes an assembly kit for a winder-unwinder comprising synchronization means in the form of a wheel including a core, housed in the wheel and capable of pivoting within the wheel. Thus, during the winding phase, when the speed imposed on the wheel exceeds a certain threshold, the core decouples from the rim and begins to slip so that the wheel is no longer driven.

Cependant, ces systèmes provoquent une usure prématurée des roues motrices, pièce coûteuse et difficile à remplacer.However, these systems cause premature wear of the drive wheels, which are expensive and difficult to replace.

Ainsi, le problème technique que se propose de résoudre l'invention est de mettre au point un enrouleur-dérouleur de bâche dont le système de patinage est plus simple mécaniquement, moins coûteux à mettre en place et plus facile à remplacer.Thus, the technical problem that the invention sets out to solve is to develop a tarpaulin winder-unwinder whose sliding system is mechanically simpler, less expensive to install and easier to replace.

Résumé de l'inventionSummary of the invention

Pour répondre à ce problème technique, le Demandeur a mis au point un enrouleur-dérouleur automatique de bâche au-dessus de la surface du bassin d'une piscine, ledit enrouleur-dérouleur comprenant :

  • un tube d'enroulement,
  • une bâche apte à être enroulée autour du tube d'enroulement,
  • un moteur apte à mettre en rotation dans les deux sens ledit tube d'enroulement pour dérouler la bâche au cours d'une phase de déroulement et enrouler la bâche au cours d'une phase d'enroulement, et
  • deux modules de déplacement agencés pour prendre appui sur la périphérie dudit bassin, les modules étant disposés aux extrémités du tube d'enroulement, les modules comportant chacun une roue motrice, une roue non-motrice et des moyens de transmission du couple du moteur aux roues motrices,
lesdits moyens de transmission incluant :
  • une poulie haute, entrainée par le moteur,
  • une poulie basse, fixée à au moins une roue motrice, et
  • un organe de transmission reliant les deux poulies,
To respond to this technical problem, the Applicant has developed an automatic tarpaulin reel-unwinder above the surface of a swimming pool basin, said reel-unwinder comprising:
  • a winding tube,
  • a tarpaulin capable of being rolled up around the rolling tube,
  • a motor capable of rotating said winding tube in both directions to unroll the tarpaulin during an unwinding phase and roll up the tarpaulin during a winding phase, and
  • two displacement modules arranged to rest on the periphery of said basin, the modules being arranged at the ends of the winding tube, the modules each comprising a drive wheel, a non-drive wheel and means for transmitting the torque of the motor to the wheels driving,
said means of transmission including:
  • a high pulley, driven by the motor,
  • a low pulley, fixed to at least one driving wheel, and
  • a transmission member connecting the two pulleys,

Un tel enrouleur-dérouleur est caractérisé en ce que les moyens de transmission incluent en outre un mécanisme de roue libre interposé entre la poulie haute et le moteur, ledit mécanisme de roue libre permettant, d'une part, l'entrainement de la poulie haute par le moteur lors de la phase de déroulement et d'autre part, la désolidarisation de la poulie haute et du moteur lors de la phase d'enroulement.Such a winder-unwinder is characterized in that the transmission means further include a freewheel mechanism interposed between the upper pulley and the motor, said freewheel mechanism allowing, on the one hand, the driving of the upper pulley by the motor during the unwinding phase and on the other hand, the separation of the upper pulley and the motor during the winding phase.

Un tel enrouleur-dérouleur est également caractérisé en ce que durant toute la phase de déroulement, le rapport de réduction entre la poulie haute et la poulie basse est inférieur au rapport entre le rayon d'enroulement maximal de la bâche autour du tube d'enroulement et le rayon de la roue motrice de sorte que l'organe de transmission patine sur la poulie basse.Such a winder-unwinder is also characterized in that throughout the unwinding phase, the reduction ratio between the upper pulley and the lower pulley is less than the ratio between the maximum winding radius of the tarpaulin around the winding tube and the radius of the drive wheel so that the transmission member slips on the low pulley.

Au sens de l'invention, le rapport de réduction entre la poulie haute et la poulie basse est égal au rapport entre le rayon de la poulie haute et celui de la poulie basse.Within the meaning of the invention, the reduction ratio between the high pulley and the low pulley is equal to the ratio between the radius of the high pulley and that of the low pulley.

De plus, le rayon d'enroulement maximal de la bâche est défini comme le rayon du cercle passant par le point appartenant à la bâche le plus éloigné du centre du tube d'enroulement. A titre d'exemple, si la bâche inclut des barres, celle-ci n'a pas une forme strictement cylindrique une fois enroulée. Dans ce cas, le cercle défini précédemment est virtuel et passe par le point de la barre le plus éloigné du centre du tube d'enroulement.In addition, the maximum rolling radius of the tarpaulin is defined as the radius of the circle passing through the point belonging to the tarpaulin furthest from the center of the rolling tube. By way of example, if the tarpaulin includes bars, it does not have a strictly cylindrical shape when rolled up. In this case, the circle defined previously is virtual and passes through the point of the bar furthest from the center of the winding tube.

En d'autres termes, l'enrouleur-dérouleur selon l'invention comprend un système de patinage mécaniquement plus simple par rapport aux mécanismes existants. En effet, le patinage a lieu entre la poulie basse, montée sur l'axe central de la roue motrice, et la courroie reliant poulie haute et poulie basse. Le rapport de réduction entre la poulie haute et la poulie basse est calculé de telle sorte que la vitesse de rotation de la roue motrice soit toujours supérieure au cours du temps à la vitesse de déroulement de la couverture. C'est ainsi que l'organe de transmission patine sur la poulie basse.In other words, the winder-unwinder according to the invention comprises a mechanically simpler sliding system compared to existing mechanisms. Indeed, slippage takes place between the low pulley, mounted on the central axis of the driving wheel, and the belt connecting the high pulley and the low pulley. The reduction ratio between the high pulley and the low pulley is calculated so that the speed of rotation of the drive wheel is always greater over time than the unwinding speed of the cover. This is how the transmission member slips on the low pulley.

Ces pièces mécaniques sont courantes et faciles d'approvisionnement, contrairement aux moyens employés dans l'art antérieur. Par ailleurs, les frottements de l'organe de transmission sur la poulie basse peuvent entrainer une usure de l'organe de transmission. L'arrangement des pièces de l'enrouleur-dérouleur de l'invention permet de remplacer facilement la pièce usée à moindre coût.These mechanical parts are commonplace and easy to obtain, unlike the means employed in the prior art. Furthermore, the friction of the transmission member on the lower pulley can cause wear of the transmission member. The arrangement of the parts of the winder-unwinder of the invention makes it possible to easily replace the worn part at a lower cost.

Avantageusement, l'organe de transmission est une courroie car elle présente des performances supérieures, à savoir, un meilleur rapport entrainement/puissance, et demande moins d'entretien qu'une chaîne, par exemple, qui nécessite un graissage régulier de ses maillons.Advantageously, the transmission member is a belt because it has superior performance, namely a better drive/power ratio, and requires less maintenance than a chain, for example, which requires regular lubrication of its links.

Selon une caractéristique de l'invention, l'enrouleur-dérouleur comporte en outre un dispositif tendeur apte à tendre la courroie. Un tendeur a plusieurs avantages. Il permet de contrôler précisément le degré de tension de la courroie pour en optimiser l'entrainement par les poulies hautes et basses, de sorte à ce que le patinage n'ait lieu que lorsqu'il est nécessaire. Par ailleurs, la présence d'un dispositif tendeur permet également d'absorber les vibrations inhérentes au système ainsi que celles liées à la présence d'obstacles sur le trajet de l'enrouleur-dérouleur. Ainsi, la longévité de la courroie est globalement augmentée.According to one characteristic of the invention, the winder-unwinder further comprises a tensioning device capable of tensioning the belt. A tensioner has several advantages. It allows precise control of the degree of belt tension to optimize drive through the upper and lower pulleys, so that slippage only occurs when necessary. Furthermore, the presence of a tensioning device also makes it possible to absorb the vibrations inherent to the system as well as those linked to the presence of obstacles in the path of the winder-unwinder. Thus, the longevity of the belt is generally increased.

Avantageusement, la courroie est une courroie à section trapézoïdale. La courroie peut également comprendre une surface d'entraînement plane. La surface plane de la courroie permet une transmission à forte vitesse pour des efforts faibles. Les courroies trapézoïdales offrent les meilleures combinaisons de performances en traction, vitesse et durée de vie. La section en V de la courroie trapézoïdale suit le plus souvent une rainure ménagée dans les poulies haute et basse, ce qui fait que la courroie ne peut pas glisser et la transmission du couple est globalement améliorée. La forme trapézoïdale de la courroie permet donc un auto-centrage de la courroie lors du mouvement de rotation autour des poulies haute et basse.Advantageously, the belt is a belt with a trapezoidal section. The belt may also include a planar drive surface. The flat surface of the belt allows high speed transmission for low effort. V-belts offer the best combination of tensile performance, speed and life. The V-section of the V-belt most often follows a groove in the upper and lower pulleys, so that the belt cannot slip and the transmission of torque is generally improved. The trapezoidal shape of the belt therefore allows self-centering of the belt during the rotational movement around the upper and lower pulleys.

Selon un mode de réalisation préférentiel, les moyens de transmission incluent un axe de transmission entre les roues motrice des deux modules de déplacement. Autrement dit, les roues motrices sont reliées par un axe afin de permettre leur synchronisation. En effet, si chaque roue motrice était mue par un moteur indépendant, l'enrouleur-dérouleur adopterait une démarche en crabe due à la désynchronisation des roues. Par ailleurs, la présence d'un axe de transmission permet également de renforcer la structure de l'enrouleur-dérouleur et d'empêcher que des pièces se tordent ou se déforment pendant le déplacement de l'enrouleur-dérouleur ou encore que la bâche s'enroule en formant des plis.According to a preferred embodiment, the transmission means include a transmission shaft between the drive wheels of the two movement modules. In other words, the driving wheels are connected by an axis in order to allow their synchronization. Indeed, if each driving wheel were driven by an independent motor, the winder-unwinder would adopt a crab-like gait due to the desynchronization of the wheels. In addition, the presence of a transmission axis also makes it possible to reinforce the structure of the reel-unwinder and to prevent parts from twisting or deforming during the movement of the reel-unwinder or even that the tarpaulin s rolled up forming folds.

Avantageusement, les roues non-motrices des deux modules sont également reliées par un axe. Ceci permet d'apporter un renfort supplémentaire à la structure.Advantageously, the non-drive wheels of the two modules are also connected by an axle. This makes it possible to provide additional reinforcement to the structure.

Selon une autre caractéristique, les modules de déplacement comportent en outre des balais aptes à venir au contact au moins en partie de la périphérie du bassin. Les balais permettent ainsi de chasser les débris présents sur la périphérie de la piscine, débris qui pourraient représenter un obstacle à l'avancée de l'enrouleur-dérouleur.According to another feature, the displacement modules further comprise brushes capable of coming into contact at least in part with the periphery of the basin. The brushes thus allow the debris present on the periphery of the swimming pool to be chased away, debris which could represent an obstacle to the advance of the reel-unwinder.

Par ailleurs, dans une forme préférée, l'enrouleur-dérouleur comporte en outre une batterie rechargeable agencée pour alimenter le moteur. La présence d'une batterie permet de se libérer des inconvénients de la présence d'un câble d'alimentation. En effet, les câbles d'alimentation ont une longueur fixe, qui limite les déplacements de l'enrouleur-dérouleur. De plus, le fil tend souvent à s'emmêler et peut parfois faire obstacle à l'avancée de l'enrouleur-dérouleur.Furthermore, in a preferred form, the winder-unwinder further comprises a rechargeable battery arranged to power the motor. The presence of a battery makes it possible to free oneself from the disadvantages of the presence of a power cable. Indeed, the power cables have a fixed length, which limits the movement of the winder-unwinder. In addition, the thread often tends to tangle and can sometimes obstruct the progress of the winder-unwinder.

En outre, selon un mode de réalisation de l'invention, l'enrouleur-dérouleur comporte un panneau photovoltaïque, ledit panneau photovoltaïque étant apte à recharger la batterie. La présence d'un panneau photovoltaïque permet d'augmenter l'autonomie de fonctionnement de l'enrouleur-dérouleur. En effet, celui-ci est utilisé de préférence pendant la saison ensoleillée, au cours de laquelle le panneau photovoltaïque est le plus utile. Ainsi, il n'est pas nécessaire de recharger la batterie en la branchant sur le secteur.Furthermore, according to one embodiment of the invention, the winder-unwinder comprises a photovoltaic panel, said photovoltaic panel being capable of recharging the battery. The presence of a photovoltaic panel makes it possible to increase the operating autonomy of the winder-unwinder. Indeed, it is preferably used during the sunny season, during which the photovoltaic panel is most useful. Thus, it is not necessary to recharge the battery by connecting it to the mains.

Avantageusement, le panneau photovoltaïque est fixé sur l'axe reliant les deux roues non-motrices. Ainsi, le panneau photovoltaïque est exposé de manière optimale aux rayons du soleil. Selon une autre caractéristique de l'invention, les deux modules comportent un châssis identique. En d'autres termes, le squelette des deux modules est identique même si les modules finaux ne le sont pas. Cette caractéristique permet de limiter le nombre de pièces différentes à produire. Elle permet également de rendre l'enrouleur-dérouleur réversible et de pouvoir monter les moyens de transmission sur l'un ou l'autre des modules, selon les besoins de l'utilisateur et selon la géométrie de la piscine.Advantageously, the photovoltaic panel is fixed on the axle connecting the two non-drive wheels. Thus, the photovoltaic panel is optimally exposed to the sun's rays. According to another characteristic of the invention, the two modules comprise an identical chassis. In other words, the skeleton of the two modules is identical even if the final modules are not. This characteristic makes it possible to limit the number of different parts to be produced. It also makes it possible to make the winder-unwinder reversible and to be able to mount the transmission means on one or the other of the modules, according to the needs of the user and according to the geometry of the swimming pool.

Brève description des figuresBrief description of figures

La manière de réaliser l'invention, ainsi que les avantages qui en découlent, ressortiront bien de la description des modes de réalisation qui suivent, à l'appui des figures annexées dans lesquelles :

  • La figure 1 est une représentation en perspective vue de face de l'enrouleur-dérouleur selon un mode de réalisation de l'invention ;
  • La figure 2 est une représentation en perspective vue de face d'un châssis métallique de la figure 1 ;
  • La figure 3 est une représentation en perspective éclatée de la pièce de fixation du tube d'enroulement sur le châssis métallique de la figure 2 ;
  • La figure 4 est une représentation vue de face du premier module de déplacement de la figure 1;
  • La figure 5 est une représentation vue de face du second module de déplacement de la figure 1;
  • La figure 6 est une représentation en perspective vue de derrière de l'enrouleur-dérouleur de la figure 1 ;
  • La figure 7 est une représentation en perspective vue de dessus des moyens de transmission entre le moteur et le tube d'enroulement de la figure 1 ; et
  • La figure 8 est représentation partielle vue de face du premier module de la figure 4, incluant le tube d'enroulement et la bâche.
The manner of carrying out the invention, as well as the advantages which result therefrom, will clearly emerge from the description of the embodiments which follow, with the support of the appended figures in which:
  • The figure 1 is a front view perspective representation of the winder-unwinder according to one embodiment of the invention;
  • The picture 2 is a front view perspective representation of a metal chassis of the figure 1 ;
  • The picture 3 is an exploded perspective representation of the roller tube fixing part on the metal frame of the picture 2 ;
  • The figure 4 is a front view representation of the first movement module of the figure 1 ;
  • The figure 5 is a front view representation of the second movement module of the figure 1 ;
  • The figure 6 is a perspective representation seen from behind of the winder-unwinder of the figure 1 ;
  • The figure 7 is a perspective representation seen from above of the means of transmission between the motor and the winding tube of the figure 1 ; and
  • The figure 8 is a partial front view representation of the first module of the figure 4 , including roller tube and tarpaulin.

Description des modes de réalisation de l'inventionDescription of embodiments of the invention

Tel qu'illustré sur la figure 1, l'enrouleur-dérouleur 100 de l'invention comporte un tube d'enroulement 11 encadré par deux modules 20, 30 de déplacement.As shown on the figure 1 , the winder-unwinder 100 of the invention comprises a winding tube 11 framed by two modules 20, 30 of movement.

Le tube d'enroulement 11 présente des dimensions fixes telles qu'un diamètre compris entre 12 et 20 cm et une longueur un peu supérieure à la largeur de la piscine, typiquement entre 4,4 et 4,7m pour une piscine de taille standard de 8x4m ou encore entre 5,4 et 5,7m pour une piscine de taille standard de 10x5m etc...The winding tube 11 has fixed dimensions such as a diameter of between 12 and 20 cm and a length slightly greater than the width of the swimming pool, typically between 4.4 and 4.7 m for a standard size swimming pool of 8x4m or between 5.4 and 5.7m for a standard size pool of 10x5m etc...

Le tube d'enroulement 11 est de préférence un tube creux afin d'alléger la structure de l'enrouleur-dérouleur 100 et dont le matériau externe est d'une épaisseur comprise entre 0,5 et 2 cm. De plus, le tube d'enroulement 11 est réalisé dans un matériau résistant à la déformation et à la corrosion, typiquement en aluminium ou en acier inoxydable.The winding tube 11 is preferably a hollow tube in order to lighten the structure of the winder-unwinder 100 and whose outer material is between 0.5 and 2 cm thick. In addition, the winding tube 11 is made of a material resistant to deformation and corrosion, typically aluminum or stainless steel.

Le tube d'enroulement 11 comporte également des moyens d'attache de la bâche sur le tube d'enroulement 11. Ces moyens d'attache sont par exemple des boucles permettant d'insérer des sangles reliées à la bâche.The winding tube 11 also includes means for attaching the tarpaulin to the winding tube 11. These attachment means are, for example, loops making it possible to insert straps connected to the tarpaulin.

La bâche est typiquement une couverture en PVC renforcé d'une largeur supérieur à la largeur de la piscine, par exemple dépassant de 25 à 30 cm de chaque côté de la piscine. La couverture PVC est percée de premières ouvertures sur sa largeur, permettant d'insérer des barres en aluminium anodisé, ainsi que d'autres ouvertures permettant l'évacuation des eaux pluvieuses. Les barres ont également une largeur supérieure à la largeur de la piscine, de sorte à venir reposer sur les margelles bordant la piscine. De ce fait, la largeur du tube d'enroulement 11 est supérieure à la largeur de la bâche et des barres afin de permettre à celles-ci de s'enrouler correctement autour du tube d'enroulement 11. The tarpaulin is typically a reinforced PVC cover with a width greater than the width of the swimming pool, for example exceeding 25 to 30 cm on each side of the swimming pool. The PVC cover is pierced with first openings along its width, allowing the insertion of anodized aluminum bars, as well as other openings allowing the evacuation of rainwater. The bars also have a width greater than the width of the pool, so that they come to rest on the copings bordering the pool. As a result, the width of the winding tube 11 is greater than the width of the tarpaulin and the bars in order to allow them to wrap correctly around the winding tube 11.

Les modules 20, 30 de déplacement sont formés d'un châssis métallique 42 identique, illustré sur la figure 2, typiquement réalisé en aluminium ou en acier inoxydable. Les châssis métallique 42 sont de préférence recouverts d'un boitier de protection, non représenté sur les figures, ayant des propriétés esthétiques ainsi qu'un but de protection des pièces mécaniques et électroniques contre les chocs et les intempéries.The displacement modules 20, 30 are formed of an identical metal frame 42 , illustrated in the figure 2 , typically made of aluminum or stainless steel. The metal frames 42 are preferably covered with a protective casing, not shown in the figures, having aesthetic properties as well as the purpose of protecting the mechanical and electronic parts against shocks and bad weather.

Le châssis métallique 42 est composé d'une plaque 421, par exemple en forme de demi-cercle, venant au contact des extrémités du tube d'enroulement 11, d'une plaque de support 425, perpendiculaire à la plaque 421 et de deux pièces de maintien 426, 427, permettant de solidariser la plaque 421 de la plaque de support 425. La plaque de support 425 et la plaque perpendiculaire 421 peuvent constituer deux pièces distinctes solidarisées entre-elles par des moyens de fixation ou encore être formées à partir d'une unique pièce obtenue par pliage.The metal frame 42 is composed of a plate 421, for example in the shape of a semicircle, coming into contact with the ends of the winding tube 11, of a support plate 425, perpendicular to the plate 421 and of two parts 426, 427, allowing the plate 421 to be joined to the support plate 425. The support plate 425 and the perpendicular plate 421 can constitute two separate parts joined together by fastening means or even be formed from a single piece obtained by folding.

La plaque 421 est percée d'un trou 422 au niveau duquel le tube d'enroulement 11 est fixé, rotatif par rapport à la plaque 421. La fixation est réalisée par le biais d'une pièce 51, visible sur la figure 3, formée d'un axe cylindrique 52 d'un diamètre compris entre 1 et 5 cm et d'une longueur comprise entre 25 et 50cm, comprenant, en une première extrémité, un disque de diamètre compris entre 10 et 15 cm, soit un diamètre légèrement inférieur au diamètre du tube d'enroulement, et d'une épaisseur comprise entre 2 et 5 cm. L'axe cylindrique 52 comporte également un second disque 53, identique au premier, positionné à une distance comprise entre 10 et 15 cm de son autre extrémité.The plate 421 is pierced with a hole 422 at the level of which the winding tube 11 is fixed, rotatable relative to the plate 421. The fixing is carried out by means of a part 51, visible on the picture 3 , formed of a cylindrical shaft 52 with a diameter of between 1 and 5 cm and a length of between 25 and 50 cm, comprising, at a first end, a disc with a diameter of between 10 and 15 cm, i.e. a diameter slightly smaller than the diameter of the winding tube, and with a thickness of between 2 and 5 cm. Cylindrical shaft 52 also includes a second disc 53, identical to the first, positioned at a distance of between 10 and 15 cm from its other end.

Cette pièce 51 est insérée de chaque côté du tube d'enroulement 11, de sorte que la portion libre 56 de l'axe cylindrique 52 dépasse du tube d'enroulement 11 et que le disque 53 permette de rendre le tube d'enroulement 11 imperméable à la pénétration d'eau ou de saleté qui pourraient l'alourdir et/ou l'endommager.This part 51 is inserted on each side of the winding tube 11, so that the free portion 56 of the cylindrical axis 52 protrudes from the winding tube 11 and that the disc 53 makes it possible to make the winding tube 11 waterproof. to the penetration of water or dirt which could weigh it down and/or damage it.

La pièce 51 est rendue solidaire du tube d'enroulement 11 par le biais de vis 57 traversant le tube d'enroulement 11 et venant se ficher dans les disques 54 et 53. Part 51 is secured to winding tube 11 by means of screws 57 passing through winding tube 11 and being inserted into discs 54 and 53.

L'ensemble formé par le tube d'enroulement 11 et les pièces 51 fixées aux extrémités du tube d'enroulement 11 est ensuite monté, libre en rotation, sur les châssis métalliques 42 en logeant les axes cylindrique 52 dans les trous 422, ménagés au niveau des plaques 421 des châssis métalliques 42. Les tiges cylindriques 52 sont maintenues aux châssis métalliques 42 par l'association de deux pièces de maintien 58, 59, positionnées de part et d'autre de la plaque 421 et solidarisées l'une à l'autre par la présence de vis traversant la plaque 421 du châssis métallique 42. The assembly formed by the winding tube 11 and the parts 51 fixed to the ends of the winding tube 11 is then mounted, free to rotate, on the metal frames 42 by housing the cylindrical axes 52 in the holes 422, provided at the level of the plates 421 of the metal frames 42. The cylindrical rods 52 are held to the metal frames 42 by the combination of two holding pieces 58, 59, positioned on either side of the plate 421 and secured to one another. the other by the presence of screws passing through the plate 421 of the metal frame 42.

Tel qu'illustré sur la figure 2, la plaque de support 425 comporte également deux ouvertures 428, 429 permettant de loger les roues 25, 35, 27, 37. As shown on the figure 2 , the support plate 425 also has two openings 428, 429 allowing the wheels 25, 35, 27, 37 to be accommodated.

Tel qu'illustré sur la figure 1, l'enrouleur-dérouleur 100 comporte à cet effet deux roues motrices 25, 35 d'un diamètre compris entre 25 et 40 cm. Les roues motrices 25, 35 sont composées d'un revêtement 251, de préférence en caoutchouc, monté sur une jante 252, de préférence réalisée en plastique, traversée en son centre par un axe de rotation 253, tel qu'illustré sur la figure 5. La partie inférieure de la roue motrice 25, 35 est insérée dans l'ouverture 428 du châssis métallique 42 et l'axe 253 est logé dans les ouvertures circulaires 254 et 255, visibles sur la figure 2. L'axe 253 est maintenu par des pièces de maintien similaires à la pièce 58. As shown on the figure 1 , the winder-unwinder 100 comprises for this purpose two drive wheels 25, 35 with a diameter of between 25 and 40 cm. The drive wheels 25, 35 are made up of a coating 251, preferably made of rubber, mounted on a rim 252, preferably made of plastic, through which an axis of rotation 253 passes through its center, as illustrated in the figure 5 . The lower part of the drive wheel 25, 35 is inserted into the opening 428 of the metal frame 42 and the axle 253 is housed in the circular openings 254 and 255, visible on the picture 2 . Shaft 253 is held by holding pieces similar to piece 58.

L'enrouleur dérouleur comporte également deux roues non-motrices 27, 37 d'un diamètre compris entre 10 et 15 cm. Les roues non-motrices 27, 37 sont composées d'un revêtement 271, de préférence en caoutchouc, monté sur une jante 272, préférence réalisée en plastique, traversée en son centre par un axe de rotation 273, tel qu'illustré sur la figure 5. La partie inférieure de la roue non-motrices 27, 37 est insérée dans l'ouverture 429 du châssis métallique 42 et l'axe 253 est logé dans les ouvertures circulaires 274 et 275, visibles sur la figure 2. L'axe 273 est maintenu par des pièces de maintien telles qu'une goupille et un clip de retenue 276. The winder unwinder also comprises two non-drive wheels 27, 37 with a diameter of between 10 and 15 cm. The non-drive wheels 27, 37 are made up of a coating 271, preferably made of rubber, mounted on a rim 272, preferably made of plastic, through which an axis of rotation 273 passes through its center, as illustrated in the figure 5 . The lower part of the non-drive wheel 27, 37 is inserted into the opening 429 of the metal frame 42 and the axle 253 is housed in the circular openings 274 and 275, visible on the picture 2 . The axle 273 is held by retaining parts such as a pin and a retaining clip 276.

Tel qu'illustré sur la figure 1, la roue motrice 35 du module 30 de déplacement est reliée à la seconde roue motrice 25 du second module de déplacement 20 par un axe de transmission 41. Les roues non-motrices 27, 37 sont également reliées par un axe 43, visible sur la figure 6. Ces roues 27, 37 sont entrainées lors des déplacements de l'enrouleur-dérouleur 100. L'axe 43 peut présenter une section en forme de cercle ou de polygone sans changer l'invention.As shown on the figure 1 , the drive wheel 35 of the movement module 30 is connected to the second drive wheel 25 of the second movement module 20 by a transmission shaft 41. The non-drive wheels 27, 37 are also connected by a shaft 43, visible on the figure 6 . These wheels 27, 37 are driven during the movements of the winder-unwinder 100. The shaft 43 may have a section in the shape of a circle or a polygon without changing the invention.

Tel qu'illustré sur la figure 4, la mise en rotation des roues motrices 25, 35 et du tube d'enroulement 11 est rendue possible par la présence d'un moteur 33, localisé sur le module 30 de déplacement. Le moteur 33 est contrôlé via le boitier de commande 41. Ce dernier comporte par exemple des moyens de réception d'un signal radio, tel qu'un signal Bluetooth, ou d'un signal infrarouge provenant d'une télécommande, d'un smartphone ou d'une tablette et permettant d'initier l'enroulement et/ou le déroulement de la bâche. Avantageusement, l'enrouleur-dérouleur peut être commandé via une application, installée sur le smartphone ou la tablette. Des moyens de commande peuvent également être présents directement sur le boitier de commande 41, comme par exemple des boutons et/ou interrupteurs.As shown on the figure 4 , the rotation of the drive wheels 25, 35 and the winding tube 11 is made possible by the presence of a motor 33, located on the module 30 of movement. The motor 33 is controlled via the control box 41. The latter comprises for example means for receiving a radio signal, such as a Bluetooth signal, or an infrared signal from a remote control, a smartphone or a tablet and allowing to initiate rolling up and/or unrolling of the tarpaulin. Advantageously, the winder-unwinder can be controlled via an application, installed on the smartphone or tablet. Control means can also be present directly on the control box 41, such as buttons and/or switches, for example.

L'alimentation de l'enrouleur-dérouleur 100 peut être assurée par branchement sur le secteur via une liaison filaire ou encore par une batterie 40, dont la charge peut être effectuée en la branchant sur le secteur et/ou par le biais d'un panneau photovoltaïque 44. De préférence, le panneau photovoltaïque 44 est fixé sur l'axe 43 reliant les roues non-motrices 27, 37, tel qu'illustré sur la figure 6.The winder-unwinder 100 can be powered by connection to the mains via a wired connection or even by a battery 40, the charge of which can be carried out by connecting it to the mains and/or by means of a photovoltaic panel 44. Preferably, the photovoltaic panel 44 is fixed on the axis 43 connecting the non-drive wheels 27, 37, as illustrated in the figure 6 .

Tel qu'illustré sur la figure 7, la transmission entre le moteur 33 et le tube d'enroulement 11 est réalisée par l'intermédiaire de deux roues dentées 61, 62. La première roue dentée 62 est solidaire de l'axe de rotation du moteur 33 et la seconde roue dentée 61 est reliée à la portion libre 56 de l' axe cylindrique 52. Lorsque la première roue dentée 62 est entrainée en rotation par le moteur 33, celle-ci entraine la seconde roue dentée 61 par effet d'engrenage. De cette manière, le tube d'enroulement 11 est également entraîné en rotation par le moteur 33. As shown on the figure 7 , the transmission between the motor 33 and the winding tube 11 is carried out by means of two toothed wheels 61, 62. The first toothed wheel 62 is integral with the axis of rotation of the motor 33 and the second toothed wheel 61 is connected to the free portion 56 of the cylindrical shaft 52. When the first toothed wheel 62 is driven in rotation by the motor 33, the latter drives the second toothed wheel 61 by gear effect. In this way, the winding tube 11 is also driven in rotation by the motor 33.

La portion libre 56 de l'axe cylindrique 52 comporte également un mécanisme de roue libre 34, surmontée d'une poulie haute 32, non représentée sur la figure 7, mais visible sur les figures 1 et 4.The free portion 56 of the cylindrical shaft 52 also includes a freewheel mechanism 34, surmounted by a high pulley 32, not shown on the figure 7 , but visible on figure 1 and 4 .

Le mécanisme de roue libre 34 est configurée pour transmettre le couple du moteur 33 à la poulie haute 32 lors de la phase de déroulement. Le mécanisme de roue libre 34 est également configurée pour empêcher la transmission du couple du moteur 33 à la poulie haute 32 lors de la phase d'enroulement, de sorte que les roues motrices 25, 35 entrent librement en rotation sous l'effet de la force de traction exercée par la bâche, reliée à une extrémité de la piscine, lors de l'avancement de l'enrouleur-dérouleur 100. The freewheel mechanism 34 is configured to transmit the torque from the motor 33 to the upper pulley 32 during the unwinding phase. The freewheel mechanism 34 is also configured to prevent the transmission of torque from the motor 33 to the upper pulley 32 during the winding phase, so that the drive wheels 25, 35 enter into rotation freely under the effect of the pulling force exerted by the cover, connected to one end of the swimming pool, during the advancement of the winder-unwinder 100.

Tel qu'illustré sur la figure 4, la roue motrice 35 est équipée d'une poulie basse 39, fixée sur son axe de rotation 273. La poulie haute 32 et la poulie basse 39 sont, quant à elles, reliées par un organe de transmission, typiquement une courroie 36. La courroie 36 est, par exemple, une courroie plate voire une courroie crantée positionnée sur la périphérie plane d'une poulie. Avantageusement, la courroie 36 est de section trapézoïdale et de surface plane permettant de s'insérer dans l'encoche de forme également trapézoïdale des poulies haute et basse 32, 39. Avantageusement, la courroie 36 est maintenue en tension au niveau de son bras supérieur par un dispositif tendeur 38 comportant une portion fixe 381, reliée au châssis métallique 42 par le biais d'une vis par exemple. Le dispositif tendeur 38 comporte également une portion mobile 482 incluant un système de ressort permettant de venir en appui sur la courroie 36. Le système de ressort permet de continuer à exercer le même effort sur la courroie 36 à mesure que celle-ci se détend.As shown on the figure 4 , the driving wheel 35 is equipped with a low pulley 39, fixed on its axis of rotation 273. The high pulley 32 and the low pulley 39 are, for their part, connected by a transmission member, typically a belt 36. The belt 36 is, for example, a flat belt or even a toothed belt positioned on the flat periphery of a pulley. Advantageously, the belt 36 has a trapezoidal section and a flat surface allowing it to be inserted into the notch, also trapezoidal in shape, of the upper and lower pulleys 32, 39. Advantageously, the belt 36 is kept in tension at the level of its upper arm. by a tensioning device 38 comprising a fixed portion 381, connected to the metal frame 42 by means of a screw for example. The tensioning device 38 also comprises a movable portion 482 including a spring system making it possible to bear against the belt 36. The spring system makes it possible to continue to exert the same force on the belt 36 as the latter relaxes.

Durant la phase de déroulement de la bâche, cet agencement mécanique permet au moteur 33 d'entrainer en rotation la poulie haute 32, puis la poulie basse 39, par l'intermédiaire de la courroie 36. Comme la roue motrice 35 est solidaire de la poulie basse 39, celle-ci est également entrainée en rotation par le moteur 33. De même, le couple du moteur 33 est également transmis à la seconde roue motrice 25 via l'axe de transmission 41. During the tarpaulin unrolling phase, this mechanical arrangement allows motor 33 to rotate upper pulley 32, then lower pulley 39, via belt 36. As drive wheel 35 is integral with the lower pulley 39, this is also driven in rotation by motor 33. Similarly, the torque of motor 33 is also transmitted to second drive wheel 25 via transmission shaft 41.

Par ailleurs, de manière optionnelle, les modules 20, 30 comportent des balais 45 localisés sous la plaque de support 425, permettant de nettoyer la surface sur laquelle l'enrouleur-dérouleur 100 se déplace afin d'éviter de dévier et/ou d'enrayer sa trajectoire.Furthermore, optionally, the modules 20, 30 include brushes 45 located under the support plate 425, making it possible to clean the surface on which the winder-unwinder 100 moves in order to avoid deflecting and/or stop its trajectory.

Pour résumer, l'enrouleur-dérouleur présente deux phases différentes : une phase d'enroulement et une phase de déroulement de la bâche.To sum up, the winder-unwinder has two different phases: a winding phase and an unwinding phase of the tarpaulin.

Lors de la phase d'enroulement de la bâche, le mécanisme de roue libre 34 bloque la transmission entre le moteur 33 et la poulie haute 32. Dans cette phase, le moteur 33 entraine donc seulement le tube d'enroulement 11. Les roues motrices 25, 35 sont quant à elles laissées libre en rotation. Ainsi, lorsque l'enrouleur-dérouleur 100 avance le long de la périphérie de la piscine, le tube d'enroulement 11 est mis en rotation par le moteur 33 et enroule la bâche, retenue à une extrémité. La traction exercée par la bâche tendue permet ainsi de mettre en rotation les roues motrices 25, 35. During the tarpaulin rolling phase, the freewheel mechanism 34 blocks the transmission between the motor 33 and the upper pulley 32. In this phase, the motor 33 therefore drives only the rolling tube 11. The driving wheels 25, 35 are for their part left free to rotate. Thus, when the winder-unwinder 100 advances along the periphery of the pool, the winding tube 11 is rotated by the motor 33 and winds up the cover, held at one end. The traction exerted by the stretched tarpaulin thus makes it possible to set the driving wheels 25, 35 in rotation.

Lors de la phase de déroulement de la bâche, le mécanisme de roue libre 34 ne bloque pas la transmission entre le moteur 33 et la poulie haute 32. Dans cette phase, le moteur 33 entraine donc à la fois les roues motrices 25, 35, par l'intermédiaires des deux poulies 32, 39 et de la courroie 36, et le tube d'enroulement 11, par l'intermédiaire des deux roues dentées 61, 62. Pour coordonner l'avancement des roues 25, 35 avec l'enroulement du tube 11, le rapport de réduction entre les deux poulies 32, 39 permet de faire tourner les roues motrices 25, 35 à plus grande vitesse. Le réglage de la condition de patinage permet de faire patiner la courroie 36 sur la poulie basse 39 lorsque la vitesse des roues motrices 25, 35 dépasse un certain seuil.During the tarpaulin unrolling phase, the freewheel mechanism 34 does not block the transmission between the motor 33 and the upper pulley 32. In this phase, the motor 33 therefore drives both the driving wheels 25, 35, via the two pulleys 32, 39 and the belt 36, and the winding tube 11, via the two toothed wheels 61, 62. To coordinate the advancement of the wheels 25, 35 with the winding of the tube 11, the reduction ratio between the two pulleys 32, 39 makes it possible to rotate the drive wheels 25, 35 at higher speed. Adjusting the slip condition allows the belt 36 to slip on the low pulley 39 when the speed of the driving wheels 25, 35 exceeds a certain threshold.

La figure 8 permet de traduire la condition de patinage de la courroie 36 sur la poulie basse 39. Pour ce faire, on définit RT(t), le rayon de la bâche. Ce rayon RT(t) diminue au cours du temps, à mesure que la bâche 12 est déroulée. Rh est le rayon de la poulie haute 32 et Rb est le rayon de la poulie basse 39. Enfin, RR est le rayon de la roue motrice 35. The figure 8 makes it possible to translate the slipping condition of the belt 36 on the low pulley 39. To do this, we define R T (t) , the radius of the tarp. This radius R T (t) decreases over time, as the tarpaulin 12 is unrolled. R h is the radius of the high pulley 32 and R b is the radius of the low pulley 39. Finally, R R is the radius of the drive wheel 35.

Dans les calculs qui suivent, on fait l'approximation d'une bâche 12 se déroulant parallèlement au sol, sans former d'angle avec l'axe horizontal passant par le centre du tube de rotation 11. In the following calculations, the approximation is made of a tarpaulin 12 unrolling parallel to the ground, without forming an angle with the horizontal axis passing through the center of the rotation tube 11.

Ainsi, la vitesse d'enroulement VE d'un point de l'extrémité enroulée de la bâche est égale au rayon de la bâche RT(t) multiplié par la vitesse angulaire WH du tube d'enroulement 11, soit RT(t)* WH. De même, puisque les roues motrices 25, 35 sont idéalement synchronisées avec l'enroulement de la bâche 12, la vitesse d'avancement VE d'un point de l'extrémité de la roue motrice 25, 35 est aussi égale au rayon RR de la roue motrice 25, 35 multiplié par la vitesse angulaire WR de la roue motrice 25, 35, soit RR*WR. On obtient alors la relation VE = RR*WR=RT(t)* WH (1).Thus, the winding speed V E of a point of the rolled end of the tarpaulin is equal to the radius of the tarpaulin R T (t) multiplied by the angular speed W H of the winding tube 11, i.e. R T (t)* W H . Similarly, since the drive wheels 25, 35 are ideally synchronized with the winding of the tarpaulin 12, the forward speed V E of a point at the end of the drive wheel 25, 35 is also equal to the radius R R of the drive wheel 25, 35 multiplied by the angular speed W R of the drive wheel 25, 35, ie R R *W R . We then obtain the relation V E = R R *W R =R T (t)* W H (1).

Par ailleurs, la courroie étant inextensible, les vitesses de rotation des poulies haute et basse 32, 39 sont reliées par l'équation : RB*WB=RH*WH (2).Furthermore, the belt being inextensible, the speeds of rotation of the upper and lower pulleys 32, 39 are linked by the equation: R B *W B =R H *W H (2).

Pour que la courroie 36 patine sur la poulie basse 39 pendant toute la durée du déroulement, on doit avoir WR < WB, c'est-à-dire que la vitesse angulaire de la roue WR doit être inférieure à la vitesse angulaire de la poulie basse WB, c'est-à-dire : RH/RB < RT(t)/RR. Ainsi, pour que la courroie 36 patine sur la poulie basse 39, le rapport de réduction entre la poulie haute 32 et la poulie basse 39 est de préférence inférieur au rapport entre le rayon d'enroulement de la bâche RT(t) autour du tube d'enroulement 11 et le rayon de la roue motrice RR. For the belt 36 to slip on the lower pulley 39 throughout the duration of the unwinding, we must have W R < W B , that is to say that the angular speed of the wheel W R must be lower than the angular speed of the lower pulley W B , that is to say: R H /R B < R T (t)/R R . Thus, for the belt 36 to slip on the lower pulley 39, the reduction ratio between the upper pulley 32 and the lower pulley 39 is preferably lower than the ratio between the radius of winding of the tarpaulin R T (t) around the winding tube 11 and the radius of the driving wheel R R .

Pour que cette relation soit vraie à tout moment du déroulement, on définit RTmax le rayon d'enroulement maximal de la bâche 12 autour du tube d'enroulement 11. Or, RT(t)/RR < RTmax/RR. Donc RH/RB < RTmax/RR à tout instant du déroulement. Ainsi la condition de patinage est obtenue lorsque le rapport de réduction entre la poulie haute 32 et la poulie basse 39 est inférieur au rapport entre le rayon d'enroulement maximal RTmax de la bâche 12 autour du tube d'enroulement 11 et le rayon de la roue motrice RR. For this relationship to be true at any time during the unwinding, R Tmax is defined as the maximum rolling radius of the tarpaulin 12 around the rolling tube 11. Now, R T (t)/R R < R Tmax /R R . Therefore R H /R B < R Tmax /R R at any instant of the progress. Thus the slip condition is obtained when the reduction ratio between the upper pulley 32 and the lower pulley 39 is less than the ratio between the maximum winding radius R Tmax of the tarpaulin 12 around the winding tube 11 and the radius of the driving wheel R R .

Pour conclure, l'invention propose donc un enrouleur-dérouleur de bâche dont le système de patinage est plus simple mécaniquement, moins coûteux à mettre en place et plus facile à remplacer.To conclude, the invention therefore proposes a tarpaulin winder-unwinder whose sliding system is mechanically simpler, less expensive to install and easier to replace.

Claims (12)

Enrouleur-dérouleur (100) automatique de bâche au-dessus de la surface du bassin d'une piscine, ledit enrouleur-dérouleur comprenant : - un tube d'enroulement (11), - une bâche (12) apte à être enroulée autour du tube d'enroulement (11), - un moteur (33) apte à mettre en rotation dans les deux sens ledit tube d'enroulement (11) pour dérouler la bâche au cours d'une phase de déroulement et enrouler la bâche au cours d'une phase d'enroulement, et - deux modules (20, 30) de déplacement agencés pour prendre appui sur la périphérie dudit bassin, les modules (20, 30) étant disposés aux extrémités du tube d'enroulement (11), les modules (20, 30) comportant chacun une roue motrice (35), une roue non-motrice (37) et des moyens de transmission du couple du moteur (33) aux roues motrices (25, 35), lesdits moyens de transmission incluant : - une poulie haute (32), entrainée par le moteur (33), - une poulie basse (39), fixée à au moins une roue motrice (35), et - un organe de transmission (36) reliant les deux poulies (32, 39), caractérisé en ce que les moyens de transmission incluent en outre un mécanisme de roue libre (34) interposé entre la poulie haute (32) et le moteur (33), ledit mécanisme de roue libre (34) permettant, d'une part, l'entrainement de la poulie haute (32) par le moteur (33) lors de la phase de de déroulement, et d'autre part, la désolidarisation de la poulie haute et du moteur lors de la phase d'enroulement,
et en ce que durant toute la phase de déroulement, le rapport de réduction entre la poulie haute (32) et la poulie basse (39) est inférieur au rapport entre le rayon d'enroulement maximal (RTmax) de la bâche (12) autour du tube d'enroulement (11) et le rayon de la roue motrice (RR) de sorte que l'organe de transmission (36) patine sur la poulie basse (39).Automatic tarpaulin reel-unwinder (100) above the surface of the basin of a swimming pool, said reel-unwinder comprising: - a winding tube (11), - a tarpaulin (12) capable of being rolled up around the rolling tube (11), - a motor (33) capable of rotating said winding tube (11) in both directions to unroll the tarpaulin during an unwinding phase and roll up the tarpaulin during a winding phase, and - two displacement modules (20, 30) arranged to rest on the periphery of said basin, the modules (20, 30) being arranged at the ends of the winding tube (11), the modules (20, 30) each comprising a drive wheel (35), a non-drive wheel (37) and means for transmitting torque from the engine (33) to the drive wheels (25, 35), said means of transmission including: - a high pulley (32), driven by the motor (33), - a low pulley (39), fixed to at least one driving wheel (35), and - a transmission member (36) connecting the two pulleys (32, 39), characterized in that the transmission means further include a freewheel mechanism (34) interposed between the high pulley (32) and the motor (33), said freewheel mechanism (34) allowing, on the one hand, the driving of the upper pulley (32) by the motor (33) during the unwinding phase, and on the other hand, the separation of the upper pulley and the motor during the winding phase,
and in that throughout the unwinding phase, the reduction ratio between the upper pulley (32) and the lower pulley (39) is less than the ratio between the maximum winding radius (RTmax) of the tarpaulin (12) around of the winding tube (11) and the radius of the drive wheel (RR) so that the transmission member (36) slips on the lower pulley (39). Enrouleur-dérouleur selon la revendication 1, caractérisé en ce que l'organe de transmission (36) est une courroie.Winder-unwinder according to Claim 1, characterized in that the transmission member (36) is a belt. Enrouleur-dérouleur selon la revendication 2, caractérisé en ce qu 'il comporte en outre un dispositif tendeur (38) apte à tendre la courroie (36).Winder-unwinder according to Claim 2, characterized in that it further comprises a tensioning device (38) suitable for tensioning the belt (36). Enrouleur-dérouleur selon l'une des revendications 2 ou 3, caractérisé en ce que la courroie (36) est une courroie à section trapézoïdale.Winder-unwinder according to one of Claims 2 or 3, characterized in that the belt (36) is a belt with a trapezoidal section. Enrouleur-dérouleur selon l'une des revendications 2 à 4, caractérisé en ce que la courroie (36) est une courroie dont la surface d'entraînement est plane.Winder-unwinder according to one of Claims 2 to 4, characterized in that the belt (36) is a belt whose drive surface is flat. Enrouleur-dérouleur selon la revendication 1 à 5, caractérisé en ce que les moyens de transmission incluent un axe de transmission (41) entre les roues motrice (35,25) des deux modules (20,30) de déplacement.Winder-unwinder according to Claim 1 to 5, characterized in that the transmission means include a transmission shaft (41) between the drive wheels (35,25) of the two displacement modules (20,30). Enrouleur-dérouleur selon l'une des revendications 1 à 6, caractérisé en ce que les modules (20, 30) de déplacement comportent en outre des balais aptes à venir au contact au moins en partie de la périphérie du bassin.Winder-unwinder according to one of Claims 1 to 6, characterized in that the displacement modules (20, 30) further comprise brushes capable of coming into contact at least in part with the periphery of the basin. Enrouleur-dérouleur selon l'une des revendications 1 à 7, caractérisé en ce qu 'il comporte en outre une batterie rechargeable agencée pour alimenter le moteur (33).Winder-unwinder according to one of Claims 1 to 7, characterized in that it further comprises a rechargeable battery arranged to power the motor (33). Enrouleur-dérouleur selon la revendication 8, caractérisé en ce qu 'il comporte un panneau photovoltaïque, ledit panneau photovoltaïque étant apte à recharger la batterie.Winder-unwinder according to Claim 8, characterized in that it comprises a photovoltaic panel, the said photovoltaic panel being capable of recharging the battery. Enrouleur-dérouleur selon l'une des revendications 1 à 9, caractérisé en ce que les roues non-motrices (37) des deux modules sont reliées par un axe (43).Winder-unwinder according to one of Claims 1 to 9, characterized in that the non-drive wheels (37) of the two modules are connected by a shaft (43). Enrouleur-dérouleur selon les revendications 9 et 10, caractérisé en ce que le panneau photovoltaïque est fixé sur l'axe reliant les roues non-motrices (37).Winder-unwinder according to Claims 9 and 10, characterized in that the photovoltaic panel is fixed on the axle connecting the non-drive wheels (37). Enrouleur-dérouleur selon l'une des revendications 1 à 11, caractérisé en ce que les deux modules (20, 30) comportent un châssis (42) identique.Winder-unwinder according to one of Claims 1 to 11, characterized in that the two modules (20, 30) comprise an identical frame (42).
EP22151318.7A 2021-01-22 2022-01-13 Automatic winder-unwinder of a tarpaulin over the surface of a swimming pool Active EP4033053B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2100634A FR3119185B1 (en) 2021-01-22 2021-01-22 AUTOMATIC COVER REWINDER-UNWINDER ABOVE THE SURFACE OF A SWIMMING POOL BASIN

Publications (3)

Publication Number Publication Date
EP4033053A1 true EP4033053A1 (en) 2022-07-27
EP4033053C0 EP4033053C0 (en) 2023-08-23
EP4033053B1 EP4033053B1 (en) 2023-08-23

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EP22151318.7A Active EP4033053B1 (en) 2021-01-22 2022-01-13 Automatic winder-unwinder of a tarpaulin over the surface of a swimming pool

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EP (1) EP4033053B1 (en)
ES (1) ES2954739T3 (en)
FR (1) FR3119185B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2908402A1 (en) * 2006-11-13 2008-05-16 Hydroline Sa Rolling element e.g. protective cover, handling device for swimming pool, has motor rotating rotative drum that is embarked on carriage, and free wheel placed within transmission between mobile bodies e.g. wheels, and motors
EP3318701A1 (en) * 2016-11-07 2018-05-09 A.S.Pool Pool cover system
FR3084095A1 (en) 2018-07-18 2020-01-24 Waterair KIT FOR A HANDLING DEVICE FOR A FLEXIBLE ROLLABLE ELEMENT
FR3096044A1 (en) * 2019-05-15 2020-11-20 Pbk Enco automatic rewinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2908402A1 (en) * 2006-11-13 2008-05-16 Hydroline Sa Rolling element e.g. protective cover, handling device for swimming pool, has motor rotating rotative drum that is embarked on carriage, and free wheel placed within transmission between mobile bodies e.g. wheels, and motors
EP3318701A1 (en) * 2016-11-07 2018-05-09 A.S.Pool Pool cover system
FR3084095A1 (en) 2018-07-18 2020-01-24 Waterair KIT FOR A HANDLING DEVICE FOR A FLEXIBLE ROLLABLE ELEMENT
FR3096044A1 (en) * 2019-05-15 2020-11-20 Pbk Enco automatic rewinder

Also Published As

Publication number Publication date
EP4033053C0 (en) 2023-08-23
FR3119185A1 (en) 2022-07-29
FR3119185B1 (en) 2023-02-10
ES2954739T3 (en) 2023-11-24
EP4033053B1 (en) 2023-08-23

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