EP2914788B1 - Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection - Google Patents

Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection Download PDF

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Publication number
EP2914788B1
EP2914788B1 EP13789241.0A EP13789241A EP2914788B1 EP 2914788 B1 EP2914788 B1 EP 2914788B1 EP 13789241 A EP13789241 A EP 13789241A EP 2914788 B1 EP2914788 B1 EP 2914788B1
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EP
European Patent Office
Prior art keywords
cover
carriage
drum
covered
transverse
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.)
Active
Application number
EP13789241.0A
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German (de)
English (en)
French (fr)
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EP2914788A1 (fr
Inventor
Benoit Coenraets
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becoflex SA
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Becoflex SA
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Publication of EP2914788A1 publication Critical patent/EP2914788A1/fr
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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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/12—Removable protective covers for courts, rinks, or game pitches or the like

Definitions

  • the invention relates to a device for covering a surface, easy to implement and best meets the requirements of the application concerned.
  • the present invention relates to a cover device of the mobile drum type, comprising a particularly effective protective box.
  • Covers are applied to surfaces for reasons that depend on the nature of these surfaces.
  • a pool such as a pool the cover can prevent pollution by leaves or animals, can save energy, water and reagents and can or should ensure the safety of people especially children.
  • a blanket prevents dilution of liquid due to rain or excessive evaporation due to heat.
  • a blanket When it comes to a sports field such as an outdoor clay or turf tennis court, a blanket protects it from the elements, especially intermittent rain.
  • a vehicle body is covered in particular to ensure the stability of the load to the depression caused by the movement of the vehicle and protect it against the weather. Blankets are also used as blinds for greenhouses, conservatories or vehicle windows to prevent overheating indoors, and as sun protection for awnings.
  • a moving drum cover device the motorized drum is mounted on a longitudinal translation mechanism. This moves the drum over the surface to be covered, which literally allows the blanket to be "laid” on the surface when deployment, while simultaneously unrolling the drum during its longitudinal movement, and then lift, during its withdrawal, by winding simultaneously on the drum.
  • the cover does not slip on the surface either during its deployment or during its withdrawal.
  • the cover device also includes a cover attachment system at a first transverse end of the surface to be covered so that translation and rotation of the drum causes the cover to unwind or roll up over the surface to be covered.
  • the movable drum cover devices illustrated above only provide for attachment of a transverse edge of the cover to a transverse end of the surface to be covered, the opposite edge remaining integral with the drum. No system for fixing the longitudinal edges of the roof is provided. Especially in the case of a pool, people engaging on the cover would not be retained by its longitudinal edges and could be precipitated into the water. In addition, the lack of tightness of the cover on its longitudinal edges can promote the introduction into the pool of dirt, dead leaves and twigs as well as small animals such as mice or snakes.
  • FIG. WO2010 / 010152 and in WO2010 / 054960 Another advantageous system simultaneously making it possible to fix the longitudinal edges of the cover during its deployment and to exert a transverse traction force on it to stretch it perfectly has been disclosed in FIG. WO2010 / 010152 and in WO2010 / 054960 .
  • the longitudinal edges of the cover are provided with a ring or bead which is introduced into the upwardly oriented opening of a rail section-shaped section "U", with one or two wings closing partially said opening.
  • the cover Even in mobile drum devices including longitudinal edge attachment means, at most three of the four edges of the cover may provide a relatively tight contact with the surface forming the perimeter of the surface to be covered: the two longitudinal edges, as well as the first transverse edge of the cover which is attached to a first end of the surface to be covered.
  • the second transverse end where the drum is parked, can not be sealed because it is simply placed on the surface of said side edge, falling from the drum.
  • a stream of air or wind snaking under the drum can open a space between the second lateral end of the surface and the cover, thus allowing contamination of the covered surface. For example, in the case of swimming pools, this results in contamination by leaves, twigs, gravel, and even animals, which can enter the pond, despite the presence of the cover.
  • a protective box mounted on a carriage supporting the drum.
  • Said box is open on its face facing the surface to be covered forming a skirt defining a cavity containing the carriage and the drum.
  • the box comprises a rim defining the perimeter of its open face.
  • Such a carriage has a first aesthetic function, because it hides the longitudinal translation mechanism of the carriage and the drum .. It has mainly a protective function of said translation mechanism and the drum.
  • the box can also serve as a bench when parked at one or other of the transverse ends of the pool. It is clear that such a box reduces the penetration of the wind under the cover, when it is deployed.
  • the rim of the box in order to allow the movement of the carriage, the rim of the box must be in all points above the obstacles lying over the entire width of the surface when moving in the longitudinal direction of the carriage. For this reason, it is essential to leave a minimum space, d m , between the rim of the box and a plane defining the contour of the surface, such that the space, d m , is greater than the height, h o , by report to said plane of any obstacle lying on the path of the carriage and its caisson.
  • Such obstacles may be a projecting lip, pebbles, reinforcement profiles, etc.
  • This space, d m between the rim of the box and the plane defining the edge of the surface does not therefore satisfactorily seal the last side of the surface.
  • the risk of lifting the cover can be minimized by attaching a slat of metal or other high density material, extending in the transverse direction of the cover, at a position corresponding to the second end of the surface to be covered.
  • the weight of the lath makes it more difficult to open a space between the edge of the surface and the cover by wind or animal.
  • This solution is however not optimal because, on the one hand, in strong winds, the weight of the batten becomes insufficient to maintain the contact of the cover with the lateral edge of the surface and, on the other hand, the batten adds drum thickness when the blanket is rolled up.
  • the present invention provides a special protective box, sealing the two transverse sides of the surface when a cover is deployed.
  • the distance between the surface plane and a point of the rim of the box is defined as the length of the normal segment to the plane having said end of the rim end.
  • the distance, d is therefore the value of the distance from the surface plane to the point of the edge of the box being the closest. If the rim defines a plane substantially parallel to the surface plane, then all the points of the rim of the box will be at the same distance, d, from the surface plane. But the rim of the box does not necessarily define a plane and may, on the contrary, include curvatures, openings, notches or protuberances.
  • the distance, d, to the surface plane is then defined as the distance to the point of the flange closest to said surface plane.
  • the surface plane is defined by the surface directly surrounding the surface to be covered and on which the carriage is resting and moving.
  • the height variation means comprise at least one electric jack at each end of the carriage. It is advantageous if the device comprises a means of preventing the movement of the carriage until the carriage has reached its position of movement, d m .
  • the longitudinal translation mechanism of the carriage comprises an electric motor activatable by engagement of an activation system of the electric motor which, when the carriage is in the parking position, d p , to one or the other of the transverse ends of the surface, would firstly electrically activate the means of height variations, preferably cylinders, to bring the box to its position of movement, d m ; before activating the cart motor.
  • the bead is formed by a core of substantially prismatic geometry, preferably substantially cylindrical contained in a tubular sheath provided along its entire length with a band attached to at least one face of the cover and in which the core is preferably attached to the tubular sheath so as to prevent it from sliding along the sheath, while maintaining a flexibility of the bead sufficient for the operations of unwinding / winding the cover over the surface to be covered.
  • the covering device preferably comprises means for modifying the relative speed of rotation between the winding drum / unfolding of the cover and the axis of rotation of the drive wheels.
  • such means may include a spiral spring placed inside the drum and making it possible to compensate for the difference between the speed of rotation of the drive wheels, which must remain substantially constant, and the speed of rotation of the drum, which varies with the outer diameter of the drum as the cover is rolled up / unwound. If the spiral spring is taut during the course of the cover, this has the advantage that, when rewinding the cover, it is not necessary to motorize the rotation of the drum to pick up the cover.
  • the longitudinal translation mechanism preferably comprises a carriage mounted on the rails.
  • the engagement means of the continuous locking system preferably comprise application means for covering a tensile stress in the transverse direction during its unwinding, said constraint being maintained during the locking of the cover in the at at least one of said rails.
  • the means for applying a transverse stress may comprise a substantially cylindrical return bearing rotatably mounted along an axis parallel to the transverse direction of the cover. This return bearing has a distal end, remote from the surface to be covered, and a proximal end adjacent to said surface. The cover partially envelops said return bearing to change orientation, so that the bead protrudes beyond the distal end of the bearing and thus maintains the transverse tension when engaging the bead in the rail.
  • the means for applying a transversal stress may also comprise two tensioning bearings positioned between the drum and the return bearing, the two tensor bearings being separated by a distance greater than the thickness of the cover and smaller than the thickness of the bead, in order to apply a transverse tension to the cover and guide the bead in addition to the distal end of the return bearing.
  • the automatic covering device (1) of a surface (3) comprises a cover (10) for protecting said surface (3).
  • the device (1) makes it possible to cover in particular surfaces defined by the contour of a water basin such as a swimming pool, water treatment pond, sewage treatment plant, retention basin, water treatment station, desalinization etc.
  • a water basin such as a swimming pool, water treatment pond, sewage treatment plant, retention basin, water treatment station, desalinization etc.
  • the invention can be implemented in any field requiring the coverage of a surface, such as a clay tennis court or sod, a vehicle body, a greenhouse glass surface, vehicle window such as train or bus, or winter garden, etc.
  • the term "surface” is understood to mean any zone delimited by a perimeter.
  • the device (1) comprises a drum (2) having a length at least equal to the width of the cover (10), the width of which must be of sufficient width and length to cover the entire surface to be protected (3) when it is deployed.
  • the drum (2) is mounted on a longitudinal translation mechanism comprising a carriage supporting the drum.
  • the longitudinal translation mechanism also comprises rails (6) placed on either side of said surface (3) to guide the carriage on its path.
  • the drum (2) has two directions of rotation: the first direction of rotation allowing it to unroll the cover (10) to deploy it and cover the surface to be protected (3), and the second direction of rotation allowing it to wind the cover (10) to remove it and give access to said surface (3).
  • a protective box (20) is mounted on said carriage.
  • the box has the shape of a box open on one side, containing the trolley and drum.
  • the open face of the box is that facing the surface (3) to be covered.
  • the box thus forms a skirt defining a cavity containing the carriage and the drum, the box comprising a rim defining the perimeter of its open face.
  • the deviation, d m must be at least greater than the greatest height, h o , obstacles in the trajectory of the box.
  • Such obstacles may be of different natures.
  • a swimming pool it may be a raised rim of the coping, as schematically shown in FIG. Figure 2 or a filter cover or drainage channel.
  • the disadvantage of such a gap, d m is that in its extended position, the cover is not pressed against the transverse end of the surface to be covered on the side of the drum. This can be particularly disadvantageous for applications such as vehicle bodies or swimming pools, because the wind can rush under the cover passing through the gap, d m , between the box and the surface to be covered thus spreading the cover and allowing the introduction under the cover of undesirable foreign bodies.
  • the present invention solves this problem by mounting the protective box (20) on the carriage by means (22) of variation of height, to vary the distance, d, the shortest separating the surface plane of the rim of the box between a first position, d p , parking, when the carriage is at the end of travel at one or other of the transverse ends of the surface, and a second position, d m , of movement, when the carriage moves the drum over the surface (3).
  • d m > d p .
  • the surface plane is defined by the surface directly surrounding the surface to be covered and on which the carriage is resting and moving. It is parallel to the plane that would define the deployed cover in the absence of sagging arrow.
  • the surface plane is defined as the plane supporting the two rails.
  • the height, h o of any obstacle projecting from the surface plane lying on the trajectory of the caisson is thus measured with respect to this same surface plane. If the rim around the perimeter of the box defines a plane (that is to say that the rim is rectilinear over all its perimeter) it is preferable that this plane is parallel to the surface plane.
  • This variant becomes particularly advantageous if the parking position, d p , is less than 15 mm, or even substantially equal to zero, which corresponds to a contact of the entire perimeter of the rim of the box with the surface plane, thus ensuring a closure on the transverse side of the covered area where find the drum. It is also advantageous when the surface is uncovered and the drum is on the other transverse side of said surface because, in the case of a swimming pool, such a box can advantageously serve as a bench, whose stability will be increased if the its rim rests on the surface plane, rather than being removed from a distance, d m , as is the case in the prior art.
  • the rim of the box makes contact with the surface plane in its parking position, d p .
  • the seal between the transverse edge of the cover and the corresponding transverse side of the covered surface is ensured.
  • the transverse rim of the box rests on the cover which can thus be kept taut. It is also possible to obtain a seal by ensuring for example that all the sides of the rim of the box, except the transverse side adjacent to the covered surface when the cover is deployed are parallel to the surface plane.
  • the rim of the box will advantageously rest on the surface of the rails and will thus be separated from the plane surface by the thickness of the rails, which is generally less than 15 mm .
  • the rim of the box may include slots of appropriate shape and position to surround the rails projecting from the surface plane when the box is in the parking position, d p . If a perfect seal is advantageous in the case for example of vehicle body covers, some ventilation may be desirable in applications such as swimming pools, where the excess moisture accumulated in the cavity of the box can be harmful to the body. mechanical and electrical system of the device. Ventilation can be obtained, for example, by resting the box on the projecting rails, as discussed above.
  • the rim of the box may not be rectilinear and include merlons and crenels forming with the surface of the curb openings allowing the circulation of air in the box. Otherwise, ventilation holes can be arranged anywhere on the surfaces, preferably side, of the box.
  • the means (22) for varying the height of the box preferably comprise at least one electric, mechanical or pneumatic jack. If the longitudinal translation of the carriage (21) is provided by an electric motor (advantageously powered by a solar panel, then we can take advantage of the available power supply to activate the cylinder. Alternatively, a pneumatic jack, for example powered by a hand pump, or a mechanical jack can operate without power supply.
  • Other means (22) for varying the height of the box may include a lever system, to move from one position to another, for example by rotating a cam, or may comprise a worm. For reasons of comfort of use, it is preferred to use at least one jack, in particular an electric jack, fixed at each end, of the carriage (21).
  • the parking position, d p of the box, which is less than the position of movement, d m , is generally less than the maximum height, h o , of an obstacle lying on the trajectory of the box, d p ⁇ h o ⁇ d m , it is necessary to prevent the carriage (21) from moving and leaves one of its parking positions at one or the other transverse end of the surface while the box is still in the parking position, d p . For this reason, it is advantageous to provide the device of the present invention with a means preventing the movement of the carriage as the box has not reached its position of movement, d m .
  • the longitudinal translation of the carriage is provided by an electric motor equipped with an activation system for its start, simply prevent the start of the electric motor until the box is not in position of movement, d m .
  • This can be done using a switch not engaging once the strut in its position of movement, m, or using a sensor indicating the engine activating the system position of the box.
  • the engine activation system can be programmed, in the case where the box is in the parking position, d p , to first electrically activate the cylinders (22) to lift the box to its position of movement, d m , before activating the longitudinal translation electric motor of the carriage (21).
  • the device (1) further comprises a system for fixing a first transverse edge of the cover located at a transverse end of the surface to be covered and for driving tension on the thus fixed cover the rotation of the drum (2). for unwinding the cover (10) above the surface to be covered (3) when the carriage (21) moves away from said first transverse edge.
  • a fastening system known and suitable for the requirements of constraints and security according to the application can be used for this purpose.
  • the fastening system may comprise a plurality of straps secured to the apparent transverse end of the cover (10), said straps being for example provided with anchoring hooks which are fixed on the transverse portion of the contour delimiting the surface to cover (3).
  • the end is fixed with the cover of eyelets which are fixed to the transverse edge of the surface via a series of studs, screws, a cable or any other means.
  • These anchoring means keep immobilized the apparent transverse end of the cover (10) which allows to generate on it longitudinal traction and unwind without having to motorize the rotation of the drum (2) as it moves to cover the surface (3).
  • the cover can be in any material suitable for the application in question: synthetic or natural textile materials, polymeric films, polymer slats, metal or wood, etc. It can be transparent, opaque or translucent and can form a barrier to fluids or on the contrary be porous, or even include meshes such as in a net. For example, for pool or water treatment pond applications or the like, it is advantageous if the cover includes drainage holes thereby allowing rainwater not to accumulate on the cover and thus avoiding the formation of pockets of water on the surface of the cover.
  • Longitudinal tension can be applied to the cover during deployment simply by ensuring that the unwinding speed of the cover by the rotation of the drum is less than the longitudinal translation speed of the drum, or via a brake or spring in the drum rotation system, either by a differentiated motorized control of the movements of rotation and translation of the drum. If these two speeds are synchronous, the cover will be deployed without other tensions than those generated by its own weight in the case of the cover of a surface comprising a cavity such as a swimming pool.
  • Such a locking system makes it possible to slide the bead (12) into the opening (14) of the rail (6) and to jam it therein, thus causing the said longitudinal edge of the cover (25) to be fixed continuously in said rail (6) ( 10) and maintain by it the cover (10) above the surface to cover (3) even in case of very high mechanical stress due for example to depression or gravitation. In the case of swimming pools, it confers security in case of access (authorized or not) on the cover.
  • the strength of the locking system can easily reach a range of 5 to 10 kN / m (500 to 1000 kg / m) which is sufficient for many applications. Depending on the materials used, higher locking resistances can be achieved.
  • the locking system (11) of the covering device (1) comprises means for applying a transverse tension to the cover, which also guide the bead towards the opening of the corresponding rail.
  • such means preferably comprise two tensor bearings (15a, 15b) separated from one another by a distance greater than the thickness of the cover and less than the thickness of the bead (12), in order to apply a transverse tension to the cover.
  • the means also preferably comprise at least one substantially cylindrical return bearing (13) rotatably mounted along an axis parallel to the transverse direction of the cover, said return bearing having a distal end, remote from the surface to be covered, and a proximal end, adjacent to said surface, the cover partially enveloping said bearing (13) to change orientation, so that the bead (12) protrudes beyond the distal end of the bearing.
  • the system comprises two tensor bearings (15a, 15b), these are placed between the return bearing (13) and the drum, in order to position the bead of the cover when it reaches the return bearing (13). the edge of its distal end.
  • Such a system is very advantageous because it fulfills multiple functions. It allows first of all to move the carriage along the rails. As the angular segment of the drive wheel (9) capped by a flexible belt (31) as described above is much greater than that covered by a rack right, for example placed at the bottom of the rail, the risk of slippage of a drive wheel are greatly reduced. Such slippage of a drive wheel would cause the carriage to skew and block the system.
  • a second advantage of such a system is that between the carriage and the corners (35) of the surface to be covered, the opening (14) is closed by the belt (31) which is inserted into the rail in its portions (31a). ).
  • the belts make it possible to fix the bead (12) under the wing (6a) of a rail as the bead is introduced under the wing (6A) of the rail.
  • the drive wheels (9) must therefore rotate at a substantially constant speed of rotation.
  • the outer diameter of the drum can vary considerably depending on whether the cover is extended or removed. Since the speed of deployment / removal of the cover depends on the speed of rotation of the drive wheels (which remains generally constant) and as the outer diameter of the drum varies with the portion of the cover which is wound therein, it follows that the drum and the drive wheels (9) can not rotate at the same speed during the translation of the carriage. For small covers, it is possible to compensate for differences in speed by pulling on the cover.
  • the protective casing (22) in variable positions according to whether the carriage (21) is in motion, to m, or it is parked, d p, at one end of the surface to be covered can add to a protective carriage additional function of fixing the transverse edge of the cover on the side of the drum (2), when the latter is deployed.
  • Such a fastening is very advantageous, even essential, in applications of pools or semi-trailer tarpaulins, where the cover can be exposed to large air currents which can easily lift its transverse edge lying on the side of the drum and thus create an unwanted opening.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Handcart (AREA)
EP13789241.0A 2012-11-05 2013-11-05 Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection Active EP2914788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2012/0749A BE1021653B1 (fr) 2012-11-05 2012-11-05 Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection.
PCT/EP2013/073008 WO2014068131A1 (fr) 2012-11-05 2013-11-05 Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection

Publications (2)

Publication Number Publication Date
EP2914788A1 EP2914788A1 (fr) 2015-09-09
EP2914788B1 true EP2914788B1 (fr) 2016-04-20

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EP13789241.0A Active EP2914788B1 (fr) 2012-11-05 2013-11-05 Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection

Country Status (6)

Country Link
US (1) US9546492B2 (es)
EP (1) EP2914788B1 (es)
BE (1) BE1021653B1 (es)
ES (1) ES2582855T3 (es)
PT (1) PT2914788E (es)
WO (1) WO2014068131A1 (es)

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Publication number Priority date Publication date Assignee Title
BE1021653B1 (fr) * 2012-11-05 2015-12-22 Becoflex S.A. Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection.
BE1023457B1 (fr) * 2016-01-25 2017-03-27 Becoflex S.A. Dispositif de couverture d'une surface comprenant des moyens d'enclenchement
BE1023993B1 (fr) 2016-03-23 2017-10-26 Becoflex S.A. Dispositif de couverture d'une surface comprenant des bavettes de protection
IT201800007106A1 (it) 2018-07-11 2020-01-11 Sistema automatico di manutenzione di un campo da tennis
FR3088357B1 (fr) 2018-11-13 2021-01-08 Fluidra Ind France Banc modulaire protecteur de couvertures de piscine
BE1026976B1 (fr) * 2018-12-19 2020-08-21 Becoflex Sa Dispositif de couverture gonflable d'une surface
FR3095432B1 (fr) * 2019-04-26 2021-04-16 Groupe Waterair Dispositif enrouleur-dérouleur d’une bâche de protection
CN111439651A (zh) * 2020-05-08 2020-07-24 龚慧挺 一种楼道电梯及其封闭结构

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FR2803769B1 (fr) 2000-01-14 2002-04-12 Jean Luc Gaudon Dispositif pour proteger une surface au moyen d'une bache
FR2859716B1 (fr) 2003-09-12 2006-12-01 Michel Mahaut Dispositif et procede pour recouvrir et decouvrir une surface par un element de couverture enroulable
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BE1021653B1 (fr) * 2012-11-05 2015-12-22 Becoflex S.A. Dispositif de couverture d'une surface comprenant un tambour mobile couvert d'un caisson de protection.

Also Published As

Publication number Publication date
BE1021653B1 (fr) 2015-12-22
US9546492B2 (en) 2017-01-17
EP2914788A1 (fr) 2015-09-09
US20160047134A1 (en) 2016-02-18
PT2914788E (pt) 2016-06-08
WO2014068131A1 (fr) 2014-05-08
ES2582855T3 (es) 2016-09-15

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