WO2005026473A1 - Device and method for covering and uncovering a surface using a rollable cover element - Google Patents

Device and method for covering and uncovering a surface using a rollable cover element Download PDF

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Publication number
WO2005026473A1
WO2005026473A1 PCT/FR2004/002301 FR2004002301W WO2005026473A1 WO 2005026473 A1 WO2005026473 A1 WO 2005026473A1 FR 2004002301 W FR2004002301 W FR 2004002301W WO 2005026473 A1 WO2005026473 A1 WO 2005026473A1
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WO
WIPO (PCT)
Prior art keywords
mandrel
gantry
rotation
width
covering
Prior art date
Application number
PCT/FR2004/002301
Other languages
French (fr)
Inventor
Michel Mahaut
Original Assignee
Ec2M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ec2M filed Critical Ec2M
Priority to EP04787350A priority Critical patent/EP1664462B1/en
Priority to DE602004028741T priority patent/DE602004028741D1/en
Priority to AT04787350T priority patent/ATE478214T1/en
Publication of WO2005026473A1 publication Critical patent/WO2005026473A1/en

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
    • B65H75/403—Carriage with wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4481—Arrangements or adaptations for driving the reel or the material
    • B65H75/4497—Arrangements or adaptations for driving the reel or the material driving by the wheels of the carriage or vehicle

Definitions

  • the present invention relates to the technical field of devices for handling a cover element that can be rolled up over a surface in the general sense.
  • the object of the invention finds application in all areas where a surface delimiting a two or three-dimensional space must be covered by a concealing or protective element of a rollable nature such as, for example, a tarpaulin, a curtain or a shutter with blades.
  • the invention is suitable for covering, for example, a swimming pool or a surface delimiting the volume of a vehicle, a container or a room in particular.
  • there are many solutions allowing the handling of a concealing element above a surface.
  • patent FR 2 789 425 describes a device for covering and uncovering a surface using a rollable covering element, produced in the form of a gantry supported at each end by guide rails arranged along of the surface to be covered.
  • a gantry includes a winding mandrel for the covering element, extending transversely above the surface to be covered.
  • Such a device also includes motor means ensuring simultaneously a rotational movement of the winding mandrel and a translational movement of the gantry along the guide rails.
  • a drawback of this solution lies in the need to equip the edges of the space to be covered with guide rails for the gantry, which hinders access to the space to be covered.
  • a handling device requires implementing synchronization means between the means for driving the mandrel in rotation and the means for moving the gantry so that such a device has a high cost and a complexity of setting up. implemented.
  • a device for covering and uncovering a surface using a rollable covering element is in the form of a gantry comprising a central shaft equipped at each end with a wheel forming part of a remote carriage each other by a measure greater than the width of the surface to be covered.
  • Such a device also comprises a winding and unwinding mandrel for the covering element supported by the two carriages.
  • Such a device also comprises drive means on the one hand of the carriages and on the other hand of the winding mandrel of the covering element.
  • Such a device does not allow the cover element to be wound independently of the movement of the gantry.
  • it should be considered that such a device which has a complex design, does not allow in a simple way, to discover or cover a surface using a covering element.
  • Analysis of the state of the art shows that there appears to be a need for a device for covering and uncovering a surface using a rollable covering element, which does not require installation on the edges of the surface to be covered and having ease of implementation and a reduced manufacturing cost.
  • the present invention therefore aims to achieve such an objective by proposing a device for covering and uncovering a surface using a rollable covering element, the device being produced in the form of a gantry provided with displacement means ensuring its translation in a given direction above the surface substantially perpendicular to the width of said surface, the gantry comprising on the one hand a central shaft equipped at each end with at least one wheel distant from one another a measurement greater than the width of the surface and on the other hand a winding and unwinding mandrel for the cover element, driven in rotation by drive means.
  • the central shaft is provided with means for guiding in rotation for the mandrel which extends around said shaft while being mounted free in rotation relative to the central shaft and in that the displacement means comprise a manual operating member adapted to allow an effort to be exerted on the gantry in its direction of movement.
  • the displacement means partially support the drive means.
  • the displacement means comprises a support body for the on-board rotational drive means, this support body being supported by the central shaft near a wheel.
  • the manual operating member is a suitable grip handle on the support body.
  • the support body is equipped with a rolling member facilitating the movement of the gantry according to its direction of movement.
  • the rotation drive means comprise a reduction gear coupled in rotation with the mandrel and with a drive motor member supported by the support body.
  • the rotation drive means comprise a gear motor coupled in rotation with the mandrel.
  • the rotary drive means comprise control means in opposite directions to ensure the winding or unwinding of the cover element relative to the mandrel.
  • FR 2 789 425 appears when the cover element aims to cover a basin. Indeed, the cover element is intended to be deposited on the surface of the water in the basin so that such a flexible element is not suitable for supporting a person such as a child falling into the basin .
  • Another object of the invention is to remedy this drawback by proposing a new method for covering and uncovering a surface using a roll-up covering element suitable for supporting the weight of a person.
  • the method consists: - in producing, as a rollable cover element, a self-supporting flap of width greater than the width of the surface, - in dimensioning the gantry so as to be supported by at least the edges longitudinal leaving a space for the shutter with each longitudinal edge of the surface, - hanging the shutter at one end at one of the transverse edges of the surface and at the other end at the motorized mandrel , - and to ensure simultaneously, to cover the surface by the shutter wound on the mandrel, the command in unwinding of the mandrel and the displacement of the gantry so as to deposit the flap above the surface, resting on the support space of at least longitudinal edges.
  • Figure 1 is a schematic perspective view of a device according to the invention for covering and discovering a surface.
  • Figure 2 is an elevational sectional view taken substantially along lines 11-11 of FIG. 1.
  • the device 1 according to the invention is intended to cover and uncover, using a rollable covering element 2, a surface 3 delimiting a two or three-dimensional space.
  • the cover element 2 which is shown schematically in FIG. 1, has a rollable character and is capable of assuming a protection and / or concealment function.
  • the rollable cover element 2 is in the form of a tarpaulin, a curtain or a shutter.
  • the device 1 according to the invention thus makes it possible to cover and discover the surface 3 for example of a swimming pool, a container, a vehicle or a meeting room.
  • the device 1 is in the form of a gantry comprising a central shaft 4 equipped at each end with at least one wheel 5 distant from each other by a measurement greater than the width 1 of the surface 3 to cover.
  • each wheel 5 has a diameter greater than 50 cm and preferably of the order of 60 cm so as to facilitate the mobility of the gantry.
  • each wheel 5 is mounted on the shaft 4 using disengageable mounting means 6.
  • the disengagement of a wheel 5 relative to the shaft 4 allows the gantry to pivot around the other wheel 5 linked to the shaft 4.
  • the disengageable mounting means 6 can be produced by a connecting pin crossing the axis 4 and the hub 5 of a wheel 5.
  • the wheels 5 can be motorized to ensure the translational movement of the gantry.
  • the device 1 according to the invention also comprises a mandrel 7 for winding and unwinding for the covering element 2.
  • the mandrel 7 extends around the shaft 4 between the two wheels 5.
  • the mandrel 7 is guided in rotation by guide means 8 mounted on the central shaft 4.
  • the mandrel 7 is mounted free in rotation relative to the central shaft 4. In other words , there is no angular connection between the mandrel 7 and the central shaft 4.
  • the mandrel 7 is supported at each end by a guide bearing 8 mounted on the central shaft 4. The mandrel 7 thus concentrically surrounds the central shaft 4.
  • the device 1 also comprises means for driving in rotation 11 the mandrel 7 so as to ensure the winding or unwinding of the cover element 2 around said mandrel.
  • the rotation drive means 11 are on board the gantry. These rotary drive means 11 are equipped with control means not shown making it possible to control the rotation of the mandrel 7 in the two opposite directions of rotation making it possible to select the winding or the unwinding of the covering element 2 around the mandrel 7.
  • the rotary drive means 11 are made in any suitable manner and can be of fluidic, electrical or manual nature.
  • the rotary drive means 11 comprise a reduction gear 12 coupled in rotation with the mandrel 7 and with a drive motor member (not shown) supported by a body 13.
  • a drive member drive is an on-board electric motor mounted inside the support body 13 located at one end of the gantry.
  • the reduction gear 12 can be connected to a receiving head for a removable motor, or for a manual drive member.
  • the rotational drive means 11 can be produced by a tubular electric motor interposed between the shaft 4 and the mandrel 7.
  • the support body 13 is adapted to take up the torque for tilting the rotation drive means 11.
  • the support body 13 is supported by the central shaft near a wheel 5 and is in contact with the ground S.
  • the gantry is provided with displacement means 14 ensuring its translation in the direction F.
  • the displacement means 14 are of the manual type and include a manual operating member 15 adapted to exert a manual force on the gantry in its direction of movement F, as will be explained in the following description.
  • the displacement means 14 at least partially support the drive means 11 of the mandrel 7.
  • the displacement means 14 are constituted by the support body 13 in the form of 'An arm extending substantially at right angles to the central shaft 4 and ending with the operating member 15 such as a grip handle.
  • the operator when moving the gantry, moves along a longitudinal edge 3i of the surface to be covered 3.
  • the support body 13 is equipped with a bearing 18 facilitating the movement of the gantry in its direction of movement F.
  • the rolling member 18 such as a wheel is capable of rolling thus in a direction parallel to the direction of rolling of the wheels 5.
  • the wheel 18 is mounted at the end of a fork 19 extending from the arm 13 so that when the displacement means 14 rest on the ground S, by the wheel 18, the handle 15 is positioned correctly to allow a user to apply a pushing or pulling force on the gantry to ensure its longitudinal movement.
  • the device 1 To cover a surface 3, the device 1 according to the invention is arranged along a transverse edge 3 2 of the surface 3 to be covered while being placed to span this surface along its width.
  • the rollable cover element 2 is attached by one of its ends to a transverse edge 3 2 delimiting the surface 3 to cover while its other end is attached to the mandrel 7 around which the major part of the cover element 2 is wound.
  • the rotational drive means 11 are then controlled in a direction leading to the unwinding from the mandrel 7, of the cover element 2. Simultaneously, an operator ensures, for example, traction on the gantry, using of the manual operating member 15.
  • the device 1 can be immobilized anywhere covering the surface 3.
  • the covering element 2 can be detached from the mandrel 7 from so as to be fixed on the other transverse edge 3 2 of the surface to be covered 3.
  • the rotational drive means 11 are controlled so as to ensure the winding of the cover element 2 around the mandrel 7.
  • the device 1 according to the invention makes it possible to cover and discover a surface easily, without however providing complex guide arrangements on the edges of the surface to be covered. Furthermore, the handling device 1 according to the invention offers the advantage of being able to cover and discover a surface without requiring the deployment of significant efforts.
  • the handling device 1 is to allow the deployment of a covering element 2 of shape similar to that of the surface 3 either directly on the surface 3 such as on the surface of the water of a basin for example, or at least on the longitudinal edges 3 ⁇ in order to avoid contact between the surface of the water and the covering element 2.
  • the method according to the invention aims to realize as a rollable cover element 2, a self-supporting flap of width greater than the surface 3 so that it can rest on the longitudinal edges 3] of the surface and possibly on the transverse edge 3 2 opposite to that from which the flap is fixed. It should be noted that the self-supporting flap is supported along the transverse edge 3 2 on which it is fixed.
  • the self-supporting flap can therefore be produced in various forms similar to those of the surface 3, with larger dimensions in order to rest on the edges of the surface 3.
  • the self-supporting flap consists of a series of rigid transverse slats hinged together to allow winding of the shutter.
  • Such a flap with articulated rigid strips is adapted to support at least the weight of a person when it is simply supported by the ends of the rigid strips.
  • the handling device which is produced in the form of a gantry displaceable in a direction of translation above the surface 3, comprises a motorized mandrel of width adapted to receive such a self-supporting flap.
  • the gantry is dimensioned so as to be supported by the longitudinal edges 3 ⁇ leaving with each longitudinal edge 3 3 of the surface 3 remaining, a support space 25 for the self-supporting flap.
  • the covering of a surface 3 using a self-supporting flap is carried out as described above. Indeed, during the command in progress of the mandrel 7 and the concomitant movement of the gantry, the self-supporting flap is deposited above the surface 3 resting on the support space 25 adjoining the longitudinal edges 3 ⁇ .
  • the self-supporting flap rests on a surface of the edges large enough to constitute a rigid surface even when a person walks on such a flap.
  • the invention is not limited to the examples described and shown since various modifications can be made without departing from its scope.

Abstract

The invention relates to a device which is used to cover and uncover a surface (3) using a rollable cover element (2). The inventive device takes the form of a portal frame comprising movement means (14) which enable the device to move in translation above the surface along a given direction (F) which is essentially perpendicular to the width of said surface. In addition, the portal frame comprises: (i) a central shaft having at least one wheel (5) at each of the ends thereof, said wheels being separated from one another by a distance greater than the width of the surface; and (ii) a mandrel (7) which is used to roll-up and unroll the cover element (2) and which is rotated by drive means. The aforementioned central shaft is equipped with means for guiding the mandrel (7) in rotation. Moreover, the mandrel extends around the shaft and is mounted to said shaft such as to rotate freely in relation to same. Furthermore, the above-mentioned movement means (14) comprise a manual operating element (15) which is designed such that a force can be exerted on the portal frame in the direction of displacement.

Description

DISPOSITIFETPROCEDE POURRECOUVRIRET DECOUVRIRUNE SURFACE PARUNELEMENT DE COUVERTURE ENROULABLE La présente invention concerne le domaine technique des dispositifs de manutention d'un élément de couverture enroulable au-dessus d'une surface au sens général. L'objet de l'invention trouve une application dans tous les domaines où une surface délimitant un espace bi ou tri-dimensionnel doit être recouvert par un élément d'occultation ou de protection à caractère enroulable comme par exemple, une bâche, un rideau ou un volet à lames. L'invention est adaptée pour permettre de couvrir par exemple, une piscine ou une surface délimitant le volume d'un véhicule, d'un container ou d'une salle en particulier. Dans l'état de la technique, il existe de nombreuses solutions permettant la manutention d'un élément d'occultation au-dessus d'une surface. Par exemple, le brevet FR 2 789 425 décrit un dispositif pour recouvrir et découvrir une surface à l'aide d'un élément de couverture enroulable, réalisé sous la forme d'un portique supporté à chaque extrémité par des rails de guidage aménagés le long de la surface à couvrir. Un tel portique comporte un mandrin d'enroulement pour l'élément de couverture, s'étendant transversalement au-dessus de la surface à recouvrir. Un tel dispositif comporte également des moyens moteurs assurant simultanément un mouvement de rotation du mandrin d'enroulement et un mouvement de translation du portique le long des rails de guidage. Un inconvénient de cette solution réside dans la nécessité d'équiper les bords de l'espace à couvrir, par des rails de guidage pour le portique, ce qui entrave l'accès à l'espace à couvrir. De plus, un tel dispositif de manutention nécessite de mettre en œuvre des moyens de synchronisation entre les moyens d'entraînement en rotation du mandrin et les moyens de déplacement du portique de sorte qu'un tel dispositif présente un coût élevé et une complexité de mise en œuvre. Par ailleurs, il est également connu par le document DE 2 257 231, un dispositif pour recouvrir et découvrir une surface à l'aide d'un élément de couverture enroulable. Un tel dispositif se présente sous la forme d'un portique comportant un arbre central équipé à chaque extrémité d'une roue faisant partie d'un chariot distant l'un de l'autre d'une mesure supérieure à la largeur de la surface à recouvrir. Un tel dispositif comporte également un mandrin d'enroulement et de déroulement pour l'élément de couverture supporté par les deux chariots. Un tel dispositif comporte également des moyens d'entraînement d'une part des chariots et d'autre part du mandrin d'enroulement de l'élément de couverture. Un tel dispositif ne permet pas d'enrouler l'élément de couverture indépendamment du déplacement du portique. D'une manière générale, il doit être considéré qu'un tel dispositif qui présente une conception complexe, ne permet pas d'une manière simple, de découvrir ou de recouvrir une surface à l'aide d'un élément de couverture. L'analyse de l'état de la technique conduit à constater qu'il apparaît le besoin de disposer d'un dispositif pour recouvrir et découvrir une surface à l'aide d'un élément de couverture enroulable, ne nécessitant pas d'aménagement sur les bords de la surface à couvrir et présentant une facilité de mise en œuvre ainsi qu'un coût de fabrication réduit. La présente invention vise donc à atteindre un tel objectif en proposant un dispositif pour recouvrir et découvrir une surface à l'aide d'un élément de couverture enroulable, le dispositif étant réalisé sous la forme d'un portique pourvu de moyens de déplacement assurant sa translation selon une direction donnée au-dessus de la surface sensiblement perpendiculairement à la largeur de ladite surface, le portique comportant d'une part un arbre central équipé à chaque extrémité d'au moins une roue distante l'une de l'autre d'une mesure supérieure à la largeur de la surface et d'autre part un mandrin d'enroulement et de déroulement pour l'élément de couverture, entraîné en rotation par des moyens d'entraînement. Selon l'invention, l'arbre central est pourvu de moyens de guidage en rotation pour le mandrin qui s'étend autour dudit arbre en étant monté libre en rotation par rapport à l'arbre central et en ce que les moyens de déplacement comportent un organe manuel de manœuvre adapté pour permettre d'exercer un effort sur le portique dans sa direction de déplacement. Avantageusement, les moyens de déplacement supportent en partie les moyens d'entraînement. Selon un exemple de réalisation, les moyens de déplacement comporte un corps support pour les moyens d'entraînement en rotation embarqués, ce corps support étant supporté par l'arbre central à proximité d'une roue. De préférence, l'organe manuel de manœuvre est une poignée de préhension adaptée sur le corps support. Avantageusement, le corps support est équipé d'un organe de roulement facilitant le déplacement du portique selon sa direction de déplacement. Selon un mode de réalisation, les moyens d'entraînement en rotation comportent un réducteur accouplé en rotation avec le mandrin et avec un organe moteur d'entraînement supporté par le corps support. Selon un autre mode de réalisation, les moyens d'entraînement en rotation comportent un moto-réducteur accouplé en rotation avec le mandrin. Avantageusement, les moyens d'entraînement en rotation comportent des moyens de commande en sens contraire pour assurer l'enroulement ou le déroulement de l'élément de couverture par rapport au mandrin. Un autre inconvénient du dispositif de manutention décrit par le brevetThe present invention relates to the technical field of devices for handling a cover element that can be rolled up over a surface in the general sense. The object of the invention finds application in all areas where a surface delimiting a two or three-dimensional space must be covered by a concealing or protective element of a rollable nature such as, for example, a tarpaulin, a curtain or a shutter with blades. The invention is suitable for covering, for example, a swimming pool or a surface delimiting the volume of a vehicle, a container or a room in particular. In the state of the art, there are many solutions allowing the handling of a concealing element above a surface. For example, patent FR 2 789 425 describes a device for covering and uncovering a surface using a rollable covering element, produced in the form of a gantry supported at each end by guide rails arranged along of the surface to be covered. Such a gantry includes a winding mandrel for the covering element, extending transversely above the surface to be covered. Such a device also includes motor means ensuring simultaneously a rotational movement of the winding mandrel and a translational movement of the gantry along the guide rails. A drawback of this solution lies in the need to equip the edges of the space to be covered with guide rails for the gantry, which hinders access to the space to be covered. In addition, such a handling device requires implementing synchronization means between the means for driving the mandrel in rotation and the means for moving the gantry so that such a device has a high cost and a complexity of setting up. implemented. Furthermore, it is also known from document DE 2 257 231, a device for covering and uncovering a surface using a rollable covering element. Such a device is in the form of a gantry comprising a central shaft equipped at each end with a wheel forming part of a remote carriage each other by a measure greater than the width of the surface to be covered. Such a device also comprises a winding and unwinding mandrel for the covering element supported by the two carriages. Such a device also comprises drive means on the one hand of the carriages and on the other hand of the winding mandrel of the covering element. Such a device does not allow the cover element to be wound independently of the movement of the gantry. In general, it should be considered that such a device which has a complex design, does not allow in a simple way, to discover or cover a surface using a covering element. Analysis of the state of the art shows that there appears to be a need for a device for covering and uncovering a surface using a rollable covering element, which does not require installation on the edges of the surface to be covered and having ease of implementation and a reduced manufacturing cost. The present invention therefore aims to achieve such an objective by proposing a device for covering and uncovering a surface using a rollable covering element, the device being produced in the form of a gantry provided with displacement means ensuring its translation in a given direction above the surface substantially perpendicular to the width of said surface, the gantry comprising on the one hand a central shaft equipped at each end with at least one wheel distant from one another a measurement greater than the width of the surface and on the other hand a winding and unwinding mandrel for the cover element, driven in rotation by drive means. According to the invention, the central shaft is provided with means for guiding in rotation for the mandrel which extends around said shaft while being mounted free in rotation relative to the central shaft and in that the displacement means comprise a manual operating member adapted to allow an effort to be exerted on the gantry in its direction of movement. Advantageously, the displacement means partially support the drive means. According to an exemplary embodiment, the displacement means comprises a support body for the on-board rotational drive means, this support body being supported by the central shaft near a wheel. Preferably, the manual operating member is a suitable grip handle on the support body. Advantageously, the support body is equipped with a rolling member facilitating the movement of the gantry according to its direction of movement. According to one embodiment, the rotation drive means comprise a reduction gear coupled in rotation with the mandrel and with a drive motor member supported by the support body. According to another embodiment, the rotation drive means comprise a gear motor coupled in rotation with the mandrel. Advantageously, the rotary drive means comprise control means in opposite directions to ensure the winding or unwinding of the cover element relative to the mandrel. Another disadvantage of the handling device described by the patent
FR 2 789 425 apparaît lorsque l'élément de couverture vise à recouvrir un bassin. En effet, l'élément de couverture est destiné à être déposé sur la surface de l'eau du bassin de sorte qu'un tel élément à caractère souple n'est pas adapté pour supporter une personne telle qu'un enfant tombant dans le bassin. Un autre objet de l'invention vise à remédier à cet inconvénient en proposant un nouveau procédé pour recouvrir et découvrir une surface à l'aide d'un élément de couverture enroulable adapté pour supporter le poids d'une personne. Pour atteindre un tel objectif, le procédé consiste : - à réaliser en tant qu'élément de couverture enroulable, un volet autoporteur de largeur supérieure à la largeur de la surface, - à dimensionner le portique de manière à être supporté par au moins les bords longitudinaux en laissant subsister avec chaque rebord longitudinal de la surface, un espace d'appui pour le volet, - à accrocher le volet par une extrémité, à l'un des bords transversaux de la surface et par l'autre extrémité, au mandrin motorisé, - et à assurer simultanément, pour couvrir la surface par le volet enroulé sur le mandrin, la commande en déroulement du mandrin et le déplacement du portique de manière à déposer le volet au-dessus de la surface en reposant sur l'espace d'appui d'au moins des bords longitudinaux. Pour découvrir la surface recouverte par le volet en appui sur les bords longitudinaux, le procédé consiste à assurer simultanément la commande en enroulement du mandrin et le déplacement du portique au-dessus de la surface en vue d'enrouler le volet sur le mandrin. Diverses autres caractéristiques ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemples non limitatifs, des formes de réalisation de l'objet de l'invention. La Figure 1 est une vue en perspective schématique d'un dispositif conforme à l'invention pour recouvrir et découvrir une surface. La Figure 2 est une vue en coupe élévation prise sensiblement selon les lignes 11-11 de la Fig. 1. Dans l'exemple illustré sur les dessins, le dispositif 1 selon l'invention est destiné à recouvrir et découvrir à l'aide d'un élément de couverture enroulable 2, une surface 3 délimitant un espace bi ou tri-dimensionnel. L'élément de couverture 2 qui est représenté de manière schématique à la Fig. 1, présente un caractère enroulable et est à même d'assumer une fonction de protection et/ou d'occultation. A titre d'exemple, l'élément de couverture enroulable 2 se présente sous la forme d'une bâche, d'un rideau ou d'un volet. Le dispositif 1 selon l'invention permet ainsi de recouvrir et découvrir la surface 3 par exemple d'une piscine, d'un container, d'un véhicule ou d'une salle de réunion. Tel que cela apparaît plus précisément à la Fig. 2, le dispositif 1 se présente sous la forme d'un portique comportant un arbre central 4 équipé à chaque extrémité d'au moins une roue 5 distante l'une de l'autre d'une mesure supérieure à la largeur 1 de la surface 3 à couvrir. Le portique est donc destiné à se déplacer au-dessus de la surface 3 selon une direction de translation représentée par la lettre F, sensiblement perpendiculaire à la largeur 1 de ladite surface. Les roues 5 roulent ainsi sur les bords longitudinaux 3χ de la surface 3 à couvrir. De préférence, chaque roue 5 présente un diamètre supérieur à 50 cm et de préférence de l'ordre de 60 cm de manière à faciliter la mobilité du portique. Selon une caractéristique préférée de réalisation, chaque roue 5 est montée sur l'arbre 4 à l'aide de moyens de montage débrayable 6. Ainsi, le débrayage d'une roue 5 par rapport à l'arbre 4 autorise un pivotement du portique autour de l'autre roue 5 liée à l'arbre 4. Par exemple, les moyens de montage débrayable 6 peuvent être réalisés par un axe de liaison traversant l'axe 4 et le moyeu 5 d'une roue 5. Selon un autre exemple de réalisation, les roues 5 peuvent être motorisées pour assurer le déplacement en translation du portique. Le dispositif 1 selon l'invention comporte également un mandrin 7 d'enroulement et de déroulement pour l'élément de couverture 2. Le mandrin 7 s'étend autour de l'arbre 4 entre les deux roues 5. Tel que cela ressort plus précisément de la Fig. 2, le mandrin 7 est guidé en rotation par des moyens de guidage 8 montés sur l'arbre central 4. Il est à noter que le mandrin 7 est monté libre en rotation par rapport à l'arbre central 4. En d'autres termes, il n'existe aucune liaison angulaire entre le mandrin 7 et l'arbre central 4. Dans l'exemple illustré, le mandrin 7 est supporté à chaque extrémité par un palier de guidage 8 monté sur l'arbre central 4. Le mandrin 7 entoure ainsi de manière concentrique l'arbre central 4. Le dispositif 1 selon l'invention comporte également des moyens d'entraînement en rotation 11 du mandrin 7 de manière à assurer l'enroulement ou le déroulement de l'élément de couverture 2 autour dudit mandrin. Selon une caractéristique de l'invention, les moyens d'entraînement en rotation 11 sont embarqués sur le portique. Ces moyens d'entraînement en rotation 11 sont équipés de moyens de commande non représentés permettant de piloter la rotation du mandrin 7 selon les deux sens opposés de rotation permettant de sélectionner l'enroulement ou le déroulement de l'élément de couverture 2 autour du mandrin 7. Les moyens d'entraînement en rotation 11 sont réalisés de toute manière appropriée et peuvent être de nature fluidique, électrique ou manuelle. Dans l'exemple illustré, les moyens d'entraînement en rotation 11 comportent un réducteur 12 accouplé en rotation avec le mandrin 7 et avec un organe moteur d'entraînement non représenté supporté par un corps 13. Par exemple, un tel organe moteur d'entraînement est un moteur électrique embarqué monté à l'intérieur du corps support 13 situé à une extrémité du portique. Selon une autre variante de réalisation, le réducteur 12 peut être relié à une tête de réception pour un moteur amovible, ou pour un organe d'entraînement manuel. Selon encore une autre variante de réalisation, les moyens d'entraînement en rotation 11 peuvent être réalisés par un moteur électrique tubulaire interposé entre l'arbre 4 et le mandrin 7. Tel que cela ressort de la description qui précède, le corps support 13 est adapté pour reprendre le couple de basculement des moyens d'entraînement en rotation 11. Dans l'exemple illustré, le corps support 13 est supporté par l'arbre central à proximité d'une roue 5 et se trouve en contact avec le sol S. Selon une autre caractéristique de l'invention, le portique est pourvu de moyens de déplacement 14 assurant sa translation selon la direction F. Conformément à la variante de réalisation préférée illustrée sur les dessins, les moyens de déplacement 14 sont de type manuel et comportent un organe manuel de manœuvre 15 adapté pour exercer un effort manuel sur le portique dans sa direction de déplacement F, comme cela sera expliqué dans la suite de la description. Dans l'exemple de réalisation illustré, les moyens de déplacement 14 supportent au moins en partie les moyens d'entraînement 11 du mandrin 7. A cet égard, les moyens de déplacement 14 sont constitués par le corps support 13 se présentant sous la forme d'un bras prolongeant sensiblement à l'équerre l'arbre central 4 et se terminant par l'organe de manœuvre 15 tel qu'une poignée de préhension. Selon cet exemple de réalisation, l'opérateur lors du déplacement du portique, se déplace le long d'un bord longitudinal 3i de la surface à couvrir 3. Selon une variante préférée de réalisation, le corps support 13 est équipé d'un organe de roulement 18 facilitant le déplacement du portique selon sa direction de déplacement F. L'organe de roulement 18 tel qu'une roue est apte à rouler ainsi selon une direction parallèle à la direction de roulement des roues 5. La roue 18 est montée à l'extrémité d'une fourche 19 s'étendant à partir du bras 13 de manière que lorsque les moyens de déplacement 14 reposent sur le sol S, par la roue 18, la poignée 15 est positionnée correctement pour permettre à un utilisateur, d'appliquer un effort de poussée ou de traction sur le portique afin d'assurer son déplacement longitudinal. La mise en œuvre du dispositif 1 selon l'invention découle directement de la description qui précède. Pour recouvrir une surface 3, le dispositif 1 selon l'invention est disposé le long d'un bord transversal 32 de la surface 3 à couvrir tout en étant placé pour enjamber cette surface selon sa largeur. L'élément de couverture enroulable 2 est attaché par une de ses extrémités sur un bord transversal 32 délimitant la surface 3 à couvrir tandis que son autre extrémité est attachée au mandrin 7 autour duquel la majeure partie de l'élément de couverture 2 est enroulé. Les moyens d'entraînement en rotation 11 sont alors commandés dans un sens conduisant au déroulement à partir du mandrin 7, de l'élément de couverture 2. Simultanément, un opérateur assure, par exemple, une traction sur le portique, à l'aide de l'organe manuel de manœuvre 15. Cet effort de traction conduit au déplacement du portique au-dessus de la surface 3 selon la direction de déplacement F, ainsi qu'à la tension de l'élément de couverture 2 qui se trouve déroulé à partir du mandrin 7. Le dispositif 1 peut être immobilisé à n'importe quel endroit de recouvrement de la surface 3. Lorsque la surface 3 est totalement recouverte, il est à noter que l'élément de couverture 2 peut être détaché du mandrin 7 de manière à être fixé sur l'autre bord transversal 32 de la surface à couvrir 3. Pour découvrir la surface 3, à l'aide de l'élément de couverture 2 attaché par une de ses extrémités au mandrin d'enroulement 7, les moyens d'entraînement en rotation 11 sont commandés de manière à assurer l'enroulement de l'élément de couverture 2 autour du mandrin 7. Dans la mesure où l'élément de couverture 2 est fixé par son autre extrémité au bord transversal 32 de la surface 3, l'enroulement de l'élément de couverture 2 conduit au déplacement du portique selon sa direction F de sorte que l'opérateur exerce un effort minimum par exemple de poussée sur l'organe de manœuvre 15. Il ressort de ce qui précède que le dispositif 1 selon l'invention permet de recouvrir et découvrir une surface facilement, sans toutefois apporter des aménagements complexes de guidage sur les bords de la surface à recouvrir. Par ailleurs, le dispositif de manutention 1 selon l'invention offre l'avantage de pouvoir recouvrir et découvrir une surface sans nécessiter le déploiement d'efforts importants. Un autre avantage du dispositif de manutention 1 selon l'invention est de permettre le déploiement d'un élément de couverture 2 de forme analogue à celle de la surface 3 soit directement sur la surface 3 telle que sur la surface de l'eau d'un bassin par exemple, soit au moins sur les bords longitudinaux 3ι afin d'éviter un contact entre la surface de l'eau et l'élément de couverture 2. Selon ce dernier exemple d'application, le procédé selon l'invention vise à réaliser en tant qu'élément de couverture enroulable 2, un volet autoporteur de largeur supérieure à la surface 3 de manière qu'il puisse reposer sur les bords longitudinaux 3] de la surface et éventuellement sur le bord transversal 32 opposé de celui à partir duquel le volet est fixé. Il est à noter que le volet autoporteur est en appui selon le bord transversal 32 sur lequel il est fixé. Le volet autoporteur peut donc être réalisé selon diverses formes similaires à celles de la surface 3, en présentant des dimensions supérieures afin de reposer sur les bords de la surface 3. A titre d'exemple, le volet autoporteur est constitué d'une série de lamelles rigides transversales articulées entre elles pour autoriser l'enroulement du volet. Un tel volet à lamelles rigides articulées est adapté pour supporter au moins le poids d'une personne lorsqu'il se trouve en appui simplement par les extrémités des lamelles rigides. Bien entendu, le dispositif de manutention qui est réalisé sous la forme d'un portique déplaçable selon une direction de translation au-dessus de la surface 3, comporte un mandrin motorisé de largeur adapté pour recevoir un tel volet autoporteur. Dans le même sens, le portique est dimensionné de manière à être supporté par les bords longitudinaux 3ι en laissant subsister avec chaque rebord longitudinal 33 de la surface 3, un espace d'appui 25 pour le volet autoporteur. Le recouvrement d'une surface 3 à l'aide d'un volet autoporteur est effectué comme décrit précédemment. En effet, lors de la commande en déroulement du mandrin 7 et du déplacement concomitant du portique, le volet autoporteur est déposé au-dessus de la surface 3 en reposant sur l'espace d'appui 25 jouxtant les bords longitudinaux 3ι. Bien entendu, le volet autoporteur repose sur une surface des bords suffisamment grande pour constituer une surface rigide même lorsqu'une personne marche sur un tel volet. L'invention n'est pas limitée aux exemples décrits et représentés car diverses modifications peuvent y être apportées sans sortir de son cadre. FR 2 789 425 appears when the cover element aims to cover a basin. Indeed, the cover element is intended to be deposited on the surface of the water in the basin so that such a flexible element is not suitable for supporting a person such as a child falling into the basin . Another object of the invention is to remedy this drawback by proposing a new method for covering and uncovering a surface using a roll-up covering element suitable for supporting the weight of a person. To achieve such an objective, the method consists: - in producing, as a rollable cover element, a self-supporting flap of width greater than the width of the surface, - in dimensioning the gantry so as to be supported by at least the edges longitudinal leaving a space for the shutter with each longitudinal edge of the surface, - hanging the shutter at one end at one of the transverse edges of the surface and at the other end at the motorized mandrel , - and to ensure simultaneously, to cover the surface by the shutter wound on the mandrel, the command in unwinding of the mandrel and the displacement of the gantry so as to deposit the flap above the surface, resting on the support space of at least longitudinal edges. To discover the surface covered by the flap bearing on the longitudinal edges, the method consists in simultaneously ensuring the winding command of the mandrel and the displacement of the gantry above the surface in order to wind the flap on the mandrel. Various other characteristics will emerge from the description given below with reference to the appended drawings which show, by way of nonlimiting examples, embodiments of the subject of the invention. Figure 1 is a schematic perspective view of a device according to the invention for covering and discovering a surface. Figure 2 is an elevational sectional view taken substantially along lines 11-11 of FIG. 1. In the example illustrated in the drawings, the device 1 according to the invention is intended to cover and uncover, using a rollable covering element 2, a surface 3 delimiting a two or three-dimensional space. The cover element 2 which is shown schematically in FIG. 1, has a rollable character and is capable of assuming a protection and / or concealment function. For example, the rollable cover element 2 is in the form of a tarpaulin, a curtain or a shutter. The device 1 according to the invention thus makes it possible to cover and discover the surface 3 for example of a swimming pool, a container, a vehicle or a meeting room. As shown more precisely in FIG. 2, the device 1 is in the form of a gantry comprising a central shaft 4 equipped at each end with at least one wheel 5 distant from each other by a measurement greater than the width 1 of the surface 3 to cover. The gantry is therefore intended to move above the surface 3 in a direction of translation represented by the letter F, substantially perpendicular to the width 1 of said surface. The wheels 5 thus roll on the longitudinal edges 3χ of the surface 3 to be covered. Preferably, each wheel 5 has a diameter greater than 50 cm and preferably of the order of 60 cm so as to facilitate the mobility of the gantry. According to a preferred embodiment characteristic, each wheel 5 is mounted on the shaft 4 using disengageable mounting means 6. Thus, the disengagement of a wheel 5 relative to the shaft 4 allows the gantry to pivot around the other wheel 5 linked to the shaft 4. For example, the disengageable mounting means 6 can be produced by a connecting pin crossing the axis 4 and the hub 5 of a wheel 5. According to another exemplary embodiment, the wheels 5 can be motorized to ensure the translational movement of the gantry. The device 1 according to the invention also comprises a mandrel 7 for winding and unwinding for the covering element 2. The mandrel 7 extends around the shaft 4 between the two wheels 5. As can be seen more precisely of Fig. 2, the mandrel 7 is guided in rotation by guide means 8 mounted on the central shaft 4. It should be noted that the mandrel 7 is mounted free in rotation relative to the central shaft 4. In other words , there is no angular connection between the mandrel 7 and the central shaft 4. In the example illustrated, the mandrel 7 is supported at each end by a guide bearing 8 mounted on the central shaft 4. The mandrel 7 thus concentrically surrounds the central shaft 4. The device 1 according to the invention also comprises means for driving in rotation 11 the mandrel 7 so as to ensure the winding or unwinding of the cover element 2 around said mandrel. According to a characteristic of the invention, the rotation drive means 11 are on board the gantry. These rotary drive means 11 are equipped with control means not shown making it possible to control the rotation of the mandrel 7 in the two opposite directions of rotation making it possible to select the winding or the unwinding of the covering element 2 around the mandrel 7. The rotary drive means 11 are made in any suitable manner and can be of fluidic, electrical or manual nature. In the example illustrated, the rotary drive means 11 comprise a reduction gear 12 coupled in rotation with the mandrel 7 and with a drive motor member (not shown) supported by a body 13. For example, such a drive member drive is an on-board electric motor mounted inside the support body 13 located at one end of the gantry. According to another alternative embodiment, the reduction gear 12 can be connected to a receiving head for a removable motor, or for a manual drive member. According to yet another variant embodiment, the rotational drive means 11 can be produced by a tubular electric motor interposed between the shaft 4 and the mandrel 7. As can be seen from the above description, the support body 13 is adapted to take up the torque for tilting the rotation drive means 11. In the example illustrated, the support body 13 is supported by the central shaft near a wheel 5 and is in contact with the ground S. According to another characteristic of the invention, the gantry is provided with displacement means 14 ensuring its translation in the direction F. In accordance with the preferred variant embodiment illustrated in the drawings, the displacement means 14 are of the manual type and include a manual operating member 15 adapted to exert a manual force on the gantry in its direction of movement F, as will be explained in the following description. In the illustrated embodiment, the displacement means 14 at least partially support the drive means 11 of the mandrel 7. In this regard, the displacement means 14 are constituted by the support body 13 in the form of 'An arm extending substantially at right angles to the central shaft 4 and ending with the operating member 15 such as a grip handle. According to this embodiment, the operator when moving the gantry, moves along a longitudinal edge 3i of the surface to be covered 3. According to a preferred embodiment, the support body 13 is equipped with a bearing 18 facilitating the movement of the gantry in its direction of movement F. The rolling member 18 such as a wheel is capable of rolling thus in a direction parallel to the direction of rolling of the wheels 5. The wheel 18 is mounted at the end of a fork 19 extending from the arm 13 so that when the displacement means 14 rest on the ground S, by the wheel 18, the handle 15 is positioned correctly to allow a user to apply a pushing or pulling force on the gantry to ensure its longitudinal movement. The implementation of the device 1 according to the invention follows directly from the above description. To cover a surface 3, the device 1 according to the invention is arranged along a transverse edge 3 2 of the surface 3 to be covered while being placed to span this surface along its width. The rollable cover element 2 is attached by one of its ends to a transverse edge 3 2 delimiting the surface 3 to cover while its other end is attached to the mandrel 7 around which the major part of the cover element 2 is wound. The rotational drive means 11 are then controlled in a direction leading to the unwinding from the mandrel 7, of the cover element 2. Simultaneously, an operator ensures, for example, traction on the gantry, using of the manual operating member 15. This tensile force leads to the displacement of the gantry above the surface 3 in the direction of movement F, as well as to the tension of the cover element 2 which is unwound at from the mandrel 7. The device 1 can be immobilized anywhere covering the surface 3. When the surface 3 is completely covered, it should be noted that the covering element 2 can be detached from the mandrel 7 from so as to be fixed on the other transverse edge 3 2 of the surface to be covered 3. To uncover the surface 3, using the covering element 2 attached by one of its ends to the winding mandrel 7, the rotational drive means 11 are controlled so as to ensure the winding of the cover element 2 around the mandrel 7. Insofar as the cover element 2 is fixed by its other end to the transverse edge 3 2 of the surface 3, l winding of the covering element 2 leads to the displacement of the gantry in its direction F so that the operator exerts a minimum force, for example of thrust on the operating member 15. It emerges from the above that the device 1 according to the invention makes it possible to cover and discover a surface easily, without however providing complex guide arrangements on the edges of the surface to be covered. Furthermore, the handling device 1 according to the invention offers the advantage of being able to cover and discover a surface without requiring the deployment of significant efforts. Another advantage of the handling device 1 according to the invention is to allow the deployment of a covering element 2 of shape similar to that of the surface 3 either directly on the surface 3 such as on the surface of the water of a basin for example, or at least on the longitudinal edges 3ι in order to avoid contact between the surface of the water and the covering element 2. According to this last example of application, the method according to the invention aims to realize as a rollable cover element 2, a self-supporting flap of width greater than the surface 3 so that it can rest on the longitudinal edges 3] of the surface and possibly on the transverse edge 3 2 opposite to that from which the flap is fixed. It should be noted that the self-supporting flap is supported along the transverse edge 3 2 on which it is fixed. The self-supporting flap can therefore be produced in various forms similar to those of the surface 3, with larger dimensions in order to rest on the edges of the surface 3. By way of example, the self-supporting flap consists of a series of rigid transverse slats hinged together to allow winding of the shutter. Such a flap with articulated rigid strips is adapted to support at least the weight of a person when it is simply supported by the ends of the rigid strips. Of course, the handling device which is produced in the form of a gantry displaceable in a direction of translation above the surface 3, comprises a motorized mandrel of width adapted to receive such a self-supporting flap. In the same direction, the gantry is dimensioned so as to be supported by the longitudinal edges 3ι leaving with each longitudinal edge 3 3 of the surface 3 remaining, a support space 25 for the self-supporting flap. The covering of a surface 3 using a self-supporting flap is carried out as described above. Indeed, during the command in progress of the mandrel 7 and the concomitant movement of the gantry, the self-supporting flap is deposited above the surface 3 resting on the support space 25 adjoining the longitudinal edges 3ι. Of course, the self-supporting flap rests on a surface of the edges large enough to constitute a rigid surface even when a person walks on such a flap. The invention is not limited to the examples described and shown since various modifications can be made without departing from its scope.

Claims

REVENDICATIONS 1 - Dispositif pour recouvrir et découvrir une surface (3) à l'aide d'un élément de couverture enroulable (2), le dispositif étant réalisé sous la forme d'un portique pourvu de moyens de déplacement (14) assurant sa translation selon une direction donnée (F) au-dessus de la surface sensiblement perpendiculairement à la largeur de ladite surface, le portique comportant d'une part un arbre central (4) équipé à chaque extrémité d'au moins une roue (5) distante l'une de l'autre d'une mesure supérieure à la largeur de la surface et d'autre part un mandrin (7) d'enroulement et de déroulement pour l'élément de couverture (2), entraîné en rotation par des moyens d'entraînement (11), caractérisé en ce que l'arbre central (4) est pourvu de moyens de guidage en rotation (8) pour le mandrin (7) qui s'étend autour dudit arbre en étant monté libre en rotation par rapport à l'arbre central et en ce que les moyens de déplacement (14) comportent un organe manuel de manœuvre (15) adapté pour permettre d'exercer un effort sur le portique dans sa direction de déplacement. 2 - Dispositif selon la revendication 1 , caractérisé en ce que les moyens de déplacement (14) supportent en partie les moyens d'entraînement (11). 3 - Dispositif selon la revendication 2, caractérisé en ce que les moyens de déplacement (14) comporte un corps support (13) pour les moyens d'entraînement en rotation embarqués (11), ce corps support (13) étant supporté par l'arbre central (4) à proximité d'une roue. 4 - Dispositif selon la revendication 3, caractérisé en ce que l'organe manuel de manœuvre (15) est une poignée de préhension adaptée sur le corps support (13). 5 - Dispositif selon la revendication 3 ou 4, caractérisé en ce que le corps support (13) est équipé d'un organe de roulement (18) facilitant le déplacement du portique selon sa direction de déplacement. 6 - Dispositif selon la revendication 3, caractérisé en ce que les moyens d'entraînement en rotation (11) comportent un réducteur accouplé en rotation avec le mandrin (7) et avec un organe moteur d'entraînement supporté par le corps support (13). 7 - Dispositif selon la revendication 1, caractérisé en ce que les moyens d'entraînement en rotation (11) comportent un moto-réducteur accouplé en rotation avec le mandrin (7). 8 - Dispositif selon la revendication 1 , caractérisé en ce que les moyens d'entraînement en rotation (11) comportent des moyens de commande en sens contraire pour assurer l'enroulement ou le déroulement de l'élément de couverture (2) par rapport au mandrin (7). 9 - Procédé pour recouvrir et découvrir une surface (3) par un élément de couverture enroulable (2) sur un mandrin motorisé (7) faisant partie d'un dispositif de manutention (1) réalisé sous la forme d'un portique supporté par les bords longitudinaux (3χ) de la surface en étant déplaçable selon une direction de translation (F) au-dessus de la surface sensiblement perpendiculairement à la largeur de ladite surface, le procédé consistant : - à réaliser en tant qu'élément de couverture enroulable (2), un volet autoporteur de largeur supérieure à la largeur (1) de la surface (3), - à dimensionner le portique de manière à être supporté par au moins les bords longitudinaux (3ι) en laissant subsister avec chaque rebord longitudinal (33) de la surface, un espace d'appui (25) pour le volet, - à accrocher le volet par une extrémité, à l'un des bords transversaux (3ι) de la surface et par l'autre extrémité, au mandrin motorisé (7), - et à assurer simultanément, pour couvrir la surface par le volet enroulé sur le mandrin, la commande en déroulement du mandrin (7) et le déplacement du portique de manière à déposer le volet au-dessus de la surface (3), en reposant sur l'espace d'appui (25) d'au moins des bords longitudinaux. 10 - Procédé selon la revendication 9, caractérisé en ce qu'il consiste, pour découvrir la surface (3) recouverte par le volet en appui au moins sur les bords longitudinaux (31), à assurer simultanément la commande en enroulement du mandrin (7) et le déplacement du portique au-dessus de la surface en vue d'enrouler le volet (2) sur le mandrin (7). 11 - Procédé selon la revendication 10, caractérisé en ce qu'il consiste à réaliser en tant que volet autoporteur (2), un volet à lamelles rigides articulées, adapté pour supporter au moins le poids d'une personne. 12 - Procédé selon l'une des revendications 9 à 11, caractérisé en ce qu'il consiste à réaliser un volet autoporteur (2) de forme analogue à celle de la surface. CLAIMS 1 - Device for covering and uncovering a surface (3) using a rollable cover element (2), the device being produced in the form of a gantry provided with displacement means (14) ensuring its translation in a given direction (F) above the surface substantially perpendicular to the width of said surface, the gantry comprising on the one hand a central shaft (4) equipped at each end with at least one wheel (5) distant l 'one on the other by a measurement greater than the width of the surface and on the other hand a mandrel (7) for winding and unwinding for the covering element (2), driven in rotation by means d drive (11), characterized in that the central shaft (4) is provided with rotation guiding means (8) for the mandrel (7) which extends around said shaft while being mounted free in rotation relative to the central shaft and in that the displacement means (14) comprise a member ma operating manual (15) adapted to allow exerting a force on the gantry in its direction of movement. 2 - Device according to claim 1, characterized in that the displacement means (14) partially support the drive means (11). 3 - Device according to claim 2, characterized in that the displacement means (14) comprises a support body (13) for the on-board rotational drive means (11), this support body (13) being supported by the central shaft (4) near a wheel. 4 - Device according to claim 3, characterized in that the manual operating member (15) is a grip handle adapted to the support body (13). 5 - Device according to claim 3 or 4, characterized in that the support body (13) is equipped with a rolling member (18) facilitating the movement of the gantry in its direction of movement. 6 - Device according to claim 3, characterized in that the rotation drive means (11) comprise a reduction gear coupled in rotation with the mandrel (7) and with a drive motor member supported by the support body (13) . 7 - Device according to claim 1, characterized in that the rotation drive means (11) comprise a gear motor coupled in rotation with the mandrel (7). 8 - Device according to claim 1, characterized in that the rotary drive means (11) comprise control means in opposite directions to ensure the winding or unwinding of the cover element (2) relative to the mandrel (7). 9 - Method for covering and uncovering a surface (3) by a rollable covering element (2) on a motorized mandrel (7) forming part of a handling device (1) produced in the form of a gantry supported by the longitudinal edges (3χ) of the surface being movable in a direction of translation (F) above the surface substantially perpendicular to the width of said surface, the method consisting in: - performing as a rollable cover element ( 2), a self-supporting flap of width greater than the width (1) of the surface (3), - to size the gantry so as to be supported by at least the longitudinal edges (3ι) leaving to exist with each longitudinal edge (3 3 ) from the surface, a support space (25) for the shutter, - to hang the shutter at one end, at one of the transverse edges (3ι) of the surface and at the other end, to the motorized mandrel (7), - and to ensure simultaneously ent, to cover the surface by the shutter wound on the mandrel, the command in unwinding of the mandrel (7) and the displacement of the gantry so as to deposit the shutter above the surface (3), resting on the space support (25) of at least longitudinal edges. 10 - Method according to claim 9, characterized in that it consists, to discover the surface (3) covered by the flap bearing at least on the longitudinal edges (31), simultaneously ensuring the winding control of the mandrel (7 ) and the displacement of the gantry above the surface in order to wind the flap (2) on the mandrel (7). 11 - Method according to claim 10, characterized in that it consists in producing as a self-supporting flap (2), a flap with articulated rigid strips, adapted to support at least the weight of a person. 12 - Method according to one of claims 9 to 11, characterized in that it consists in producing a self-supporting flap (2) of shape similar to that of the surface.
PCT/FR2004/002301 2003-09-12 2004-09-10 Device and method for covering and uncovering a surface using a rollable cover element WO2005026473A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04787350A EP1664462B1 (en) 2003-09-12 2004-09-10 Device and method for covering and uncovering a surface using a rollable cover element
DE602004028741T DE602004028741D1 (en) 2003-09-12 2004-09-10 DEVICE AND METHOD FOR COVERING AND RELEASING A SURFACE USING A REELABLE COVER ELEMENT
AT04787350T ATE478214T1 (en) 2003-09-12 2004-09-10 APPARATUS AND METHOD FOR COVERING AND EXPOSING A SURFACE USING A ROLL-UP COVERING ELEMENT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0310756A FR2859716B1 (en) 2003-09-12 2003-09-12 DEVICE AND METHOD FOR COVERING AND DISCOVERING A SURFACE BY A ROLL-UP COVERING ELEMENT
FR0310756 2003-09-12

Publications (1)

Publication Number Publication Date
WO2005026473A1 true WO2005026473A1 (en) 2005-03-24

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PCT/FR2004/002301 WO2005026473A1 (en) 2003-09-12 2004-09-10 Device and method for covering and uncovering a surface using a rollable cover element

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EP (1) EP1664462B1 (en)
AT (1) ATE478214T1 (en)
DE (1) DE602004028741D1 (en)
FR (1) FR2859716B1 (en)
WO (1) WO2005026473A1 (en)

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WO2012095264A1 (en) 2011-01-11 2012-07-19 Becoflex S.A. Device for covering a surface with a drum mounted on a spherical bearing
US8708025B2 (en) 2008-11-12 2014-04-29 Becoflex S.A. Device for covering a surface
WO2014068131A1 (en) 2012-11-05 2014-05-08 Becoflex S.A. Device for covering a surface, comprising a mobile drum covered with a protective casing
US9366045B2 (en) 2012-10-24 2016-06-14 Becoflex S.A. Device for covering a surface, comprising attachment rolls along the edges of the cover
WO2017130053A1 (en) 2016-01-25 2017-08-03 Becoflex Device for covering a surface including interlocking means
WO2020126793A1 (en) 2018-12-19 2020-06-25 Becoflex Inflatable surface-covering device
WO2021105053A1 (en) 2019-11-28 2021-06-03 Becoflex Device for covering a surface comprising discreet locking means
WO2021170500A1 (en) 2020-02-26 2021-09-02 Becoflex Device for covering a surface comprising means for locking a cover in a groove
WO2023011789A1 (en) 2021-08-03 2023-02-09 Becoflex Compact device for covering a surface comprising two axles for deploying and removing the cover
WO2023144062A1 (en) 2022-01-27 2023-08-03 Becoflex Compact device for covering a surface comprising a safety system in the event of incorrect locking of the cover

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FR2958311B1 (en) * 2010-04-01 2017-07-14 Diffusion Equipements Loisirs (Del) DEVICE FOR WINDING A COVER FOR A POOL BASIN
FR2997118B1 (en) * 2012-10-19 2014-12-12 Ec2M COMPENSATING DEVICE FOR COVERING AND DISCOVERING A SURFACE BY A ROLL-UP COVERING ELEMENT
FR3084900B1 (en) * 2017-11-23 2020-08-28 Florent Roussel DEVICE AND METHOD FOR WINDING A PROTECTIVE COVER FOR A BASIN
FR3090024A1 (en) * 2018-12-18 2020-06-19 Automatización SUperior de TECnologia SL. Winding device for a swimming pool cover and winding method
FR3106604B1 (en) 2020-01-28 2022-02-25 Groupe Waterair Method of installing a roll-up tarpaulin to cover a surface and corresponding tarpaulin

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FR2789425A1 (en) * 1999-02-05 2000-08-11 Suez Lyonnaise Des Eaux DEVICE FOR HANDLING A TANK OR MEMBRANE OVER THE ENTIRE SURFACE OF A BASIN

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8708025B2 (en) 2008-11-12 2014-04-29 Becoflex S.A. Device for covering a surface
WO2012095264A1 (en) 2011-01-11 2012-07-19 Becoflex S.A. Device for covering a surface with a drum mounted on a spherical bearing
US9366045B2 (en) 2012-10-24 2016-06-14 Becoflex S.A. Device for covering a surface, comprising attachment rolls along the edges of the cover
WO2014068131A1 (en) 2012-11-05 2014-05-08 Becoflex S.A. Device for covering a surface, comprising a mobile drum covered with a protective casing
US9546492B2 (en) 2012-11-05 2017-01-17 Becoflex S.A. Device for covering a surface, comprising a mobile drum covered with a protective casing
US10961773B2 (en) 2016-01-25 2021-03-30 Becoflex Device for covering a surface including interlocking means
WO2017130053A1 (en) 2016-01-25 2017-08-03 Becoflex Device for covering a surface including interlocking means
WO2020126793A1 (en) 2018-12-19 2020-06-25 Becoflex Inflatable surface-covering device
BE1026976A1 (en) 2018-12-19 2020-08-12 Becoflex Sa INFLATABLE SURFACE COVERING DEVICE
WO2021105053A1 (en) 2019-11-28 2021-06-03 Becoflex Device for covering a surface comprising discreet locking means
BE1027806A1 (en) 2019-11-28 2021-06-22 Becoflex SURFACE COVERING DEVICE INCLUDING DISCREET LOCKING MEANS
WO2021170500A1 (en) 2020-02-26 2021-09-02 Becoflex Device for covering a surface comprising means for locking a cover in a groove
BE1028093A1 (en) 2020-02-26 2021-09-17 Becoflex DEVICE FOR COVERING A SURFACE INCLUDING MEANS FOR LOCKING A COVER IN A GROOVE
WO2023011789A1 (en) 2021-08-03 2023-02-09 Becoflex Compact device for covering a surface comprising two axles for deploying and removing the cover
BE1029655A1 (en) 2021-08-03 2023-02-27 Becoflex COMPACT DEVICE FOR COVERING A SURFACE COMPRISING TWO AXLES FOR THE DEPLOYMENT AND REMOVAL OF THE COVER
WO2023144062A1 (en) 2022-01-27 2023-08-03 Becoflex Compact device for covering a surface comprising a safety system in the event of incorrect locking of the cover
BE1030222A1 (en) 2022-01-27 2023-08-22 Becoflex COMPACT DEVICE FOR COVERING A SURFACE COMPRISING A SAFETY SYSTEM IN THE EVENT OF BAD LOCKING OF THE COVER

Also Published As

Publication number Publication date
FR2859716A1 (en) 2005-03-18
FR2859716B1 (en) 2006-12-01
EP1664462B1 (en) 2010-08-18
DE602004028741D1 (en) 2010-09-30
EP1664462A1 (en) 2006-06-07
ATE478214T1 (en) 2010-09-15

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