EP2631897B1 - Stretched-fabric display device - Google Patents

Stretched-fabric display device Download PDF

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Publication number
EP2631897B1
EP2631897B1 EP20130155669 EP13155669A EP2631897B1 EP 2631897 B1 EP2631897 B1 EP 2631897B1 EP 20130155669 EP20130155669 EP 20130155669 EP 13155669 A EP13155669 A EP 13155669A EP 2631897 B1 EP2631897 B1 EP 2631897B1
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EP
European Patent Office
Prior art keywords
canvas
hooking
length
profile
flanks
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.)
Not-in-force
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EP20130155669
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German (de)
French (fr)
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EP2631897A1 (en
Inventor
Laurent Willerwal
Nicolas Lauzy
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Renco
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Renco
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Publication of EP2631897A1 publication Critical patent/EP2631897A1/en
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Publication of EP2631897B1 publication Critical patent/EP2631897B1/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
    • G09F15/0025—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels display surface tensioning means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
    • G09F15/0018—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels panel clamping or fastening means

Definitions

  • the invention relates to a display device taut canvas and find a particular application in the field of the sign, especially outdoors.
  • Such devices generally take the form of a box, obtained from a support structure, or of several support structures assembled to each other. Each structure is usually a mechanically welded, more or less complex to manufacture.
  • the tensioning of the fabric on the frame of the device is obtained by means of a tensioning system of the fabric.
  • the screw tensioning systems comprise on the periphery of the box a plurality of screw units, for example spaced apart from each other every 20 cm, each connecting the fabric and the structure.
  • the tensioning of the fabric is thus obtained by screwing each of the screwing units with a tool, one after the other, on the periphery of the device.
  • the ring tensioning systems allow the tensioning of the fabric, by pinch effect of the fabric between a peripheral groove of the structure and several profiles ("the rods") forcibly fitted into said peripheral groove.
  • the tension is forced by inserting the rods in the peripheral groove, usually by mallet.
  • the spring tensioning systems comprise springs, distributed over the periphery of the box of the display device, each connecting the fabric to the structure of the box.
  • the document US2009 / 0019749A1 discloses, for example, such a display device whose flexible web is stretched by means of spring elements, distributed on the periphery of the fabric, each connecting the fabric to the structure.
  • Each spring element is a coil spring, helical, terminated at both ends by two hooks, directed in the same direction, one engaging with the structure, the other through an eyelet of the fabric.
  • each spring element also comprises a loop intended to be traversed by a tool (ie a screwdriver) to facilitate the tensioning of the spring element by lever effect. In such a device the tensioning of the fabric is carried out, for each spring, in a single step of tensioning, which can prove particularly tedious when the fabric is free and undergoes the action of the wind.
  • Another spring tension system known to the inventor comprises spring elements each connecting the fabric to the structure.
  • the attachment of each spring element on the structure is obtained by means of a rack rigidly secured to the sidewall of the support structure and a corresponding notched piece integral with one of the ends of the spring element. notched piece comprising a plurality of teeth adapted to engage in locking with said rack to tension the spring element to the desired tension.
  • This system requires, for each spring element, the presence of a rack, machined metal part, rigidly secured to the structure and a part notched, machined metal part corresponding to one end of the spring element, encumbering the cost of this device. Furthermore, with such a system it is not possible to choose the positioning and distribution of the spring elements on the periphery of the display device because they must imperatively be positioned respectively opposite the racks, local, distributed and discarded spaced apart from one another on the periphery of the display box.
  • the object of the present invention is to overcome the aforementioned drawbacks by providing a display device with stretched fabric, equipped with a tensioning system of the spring type, facilitating the installation and tensioning of the fabric.
  • an object of the present invention is to provide such a display device, the establishment and tensioning of the fabric can be performed without difficulty, even in the case of wind.
  • Another object of the present invention is to provide such a display device whose positioning and the distribution of the spring elements on the periphery of the device can be chosen, according to the wishes of the installer, in particular according to the laying conditions.
  • Another object of the present invention is to provide such a display device of easy construction, and at a lower cost.
  • Another object of the present invention is to provide such a display device facilitating the production of large signs.
  • Another object of the present invention is to provide such a display device facilitating the maintenance operations (i.e. internal lighting change), in particular removal of the fabric.
  • Another object of the present invention is to provide such a device whose structure is of simplified design and can be assembled by means of fasteners such as screws, and in particular without welding.
  • the first step of tensioning the fabric at said first tension value allows the easy and fast installation of the fabric on the structure, to subtract the fabric to the possible influence of wind.
  • this first voltage value may not be sufficient to remove all the folds on the canvas, which may degrade the display.
  • the operator can then stretch more strongly each of the spring elements, and thus stretch the fabric more strongly to said second voltage value, in order to remove the last folds on the fabric.
  • attachment wings which each extend continuously along the length of the sidewall, and to the ring which also extends continuously over this length, it is possible to hook each of the spring elements in different positions along the length of the sidewall.
  • the ring received in the hem also allows a uniform distribution of the tensile force on the periphery of the fabric, and this in contrast to local fasteners (ie eyelets) which distribute the efforts in a discontinuous manner, thus promoting the appearance of folds on the canvas.
  • each spring element is a helical pull spring terminated at both ends by two hooks, the two hooks at the ends of the spring being advantageously directed in two opposite directions.
  • One of the hooks then makes it possible to crochet the fabric towards the outside, the other hook being turned inwards to engage with one of the two fastening wings.
  • each of said support edges, and said two corresponding attachment wings to said support edge may be constituted by a metal section, in one piece.
  • said at least two sidewalls each consist of said section which has an elongate section comprising a first part of length, straight, tubular, and a second part of length, tubular, inclined with respect to said first portion of length, directed towards the outside of the box.
  • Said two attachment wings are then formed on said first length portion of the section, on the outwardly facing side of the box and said bearing edge is materialized by the free end of the second portion of length, at the a section reduction of the profile.
  • said first length portion of the profile comprises at least one C-shaped rail, directed along the length of the profile, projecting towards the inside of the box and intended for the assembly of two sections belonging to two consecutive edges at an angle, in particular at means of corner fittings, such as a metal bracket.
  • One of the branches of the corner fitting i.e. angle
  • the two consecutive profiles can be arranged edge against edge, arranged at an angle relative to each other, in particular at 90 °, thanks to a miter section of said profiles, 45 ° in particular.
  • said box results from the assembly of at least two structures placed end to end, two sides of one of the structures respectively extending two sides of the body. other structure, said four sides formed by said profiles being mutually coupled, two by two, by means of sleeves each fitted to the interlocking play near in the tubular portions of two sections respectively belonging to said at least two structures.
  • the box may consist of a single structure (not shown). Said structure can then comprise four flanks, two to two parallel. The four bearing edges respectively belonging to the four sides forming a support frame on which said canvas is stretched.
  • the box can result from the assembly of at least two structures 3,4.
  • the flanks 5, 6, 7, and their support edge 50, 60, 70 of the structures extend, the bearing edges 50, 60, 70 forming a support frame on which said fabric is stretched.
  • the box, and in particular the or each structure 3,4 can integrate into its interior volume an electric lighting device for lighting the fabric 2, by the back of the fabric 2.
  • said at least two sidewalls 5, 6, 7 of said at least one structure 3, 4 each have two attachment wings 51, 52, 61, 62, 71, 72 of said system for tensioning the fabric. 2, said two gripping wings 51, 52, 61, 62, 71, 72 being parallel to one another, each capable of cooperating with one of the ends of a spring element 8.
  • said two attachment wings 51, 52, 61, 62, 71, 72 are arranged in two distinct positions along the width of the sidewall to allow the tension of each of said spring elements 8 to be adjusted according to two distinct tension values.
  • the first tensioning step allows the installer to quickly and easily place the fabric on the structure of the device, effortlessly, said fabric being supported on said edges 50,60,70 to subtract the fabric to the possible influence of the wind.
  • This first step allows, moreover, the pre-centering of the visual of the canvas on the support frame.
  • the first voltage value is however not necessarily sufficient to remove all the folds on the fabric 2, the display may remain imperfect.
  • each spring element 8 engages with said attachment wing 51; 61; 71 and tends more strongly the spring element 8 to hang on the other 52; 62; 72 wing attachment.
  • the tensioning of the fabric at the second tension value then makes it possible to eliminate the possible final folds of the fabric 2.
  • each attachment wing 51, 52, 61, 62, 71, 72 extends continuously over the length of said corresponding sidewall 5, 6, a ring 9 being received in a hem 2 of said web 2 facing said sidewall 5, 6, 7, adapted to cooperate with the other end of the spring element 8 in such a way as to allow any positioning of said spring element 8 along the length of the sidewall 5; 6, 7.
  • attachment wings 51, 52, 61, 62, 71, 72 which each extend continuously along the length of the sidewall 5; 6; 7, and to the ring 9 which also extends continuously over this length, it is possible to hook each of the spring elements 8 in different positions along the length of the sidewall 5; 6; 7.
  • the ring 9 received in the hem 20 also allows a uniform distribution of the tensile force on the periphery of the fabric 2.
  • each spring member 8 is a coil spring 80 traction terminated at both ends by two hooks 81,82.
  • the two hooks 81, 82 at the ends of the spring 80 are directed in two opposite directions. Also as illustrated in figure 1 one of the hooks is turned towards the box for engaging with one of the two hooking wings, while the hook at the other end of the spring 80 hooks the fabric 2 and the ring 9 to the outside. According to the findings of the inventor such an arrangement of the hooks, in opposite directions facilitates the pose.
  • the box takes the form of a rectangular parallelepiped and comprises four flanks (see figure 6 ), two by two parallel to each other.
  • the support edges then form a rectangular frame on which is tensioned the fabric 2, stretched on all four sides.
  • each of said support edges 50, 60, 70, as well as said two attachment wings 51, 52; 61.62; 71,72 corresponding to said support edge 50; 60; 70 are constituted by a metal section 10, in one piece.
  • Such a metal profile is obtained by extrusion techniques and is illustrated, by way of nonlimiting examples, in Figures 1 to 5 .
  • said at least two sidewalls 5, 6, 7 may each be constituted by said profile 10, said profile 10 having an elongate section comprising a first part of length 11, straight, tubular, and a second part of length 12, tubular, inclined by relative to said first portion of length 11, directed towards the outside of the box.
  • the first length portion 11 of the section extends at right angles to the bottom wall of the box.
  • Said second portion of length 12 extends the first portion of length 11 and is inclined relative to the first portion 11 of an angle ⁇ between 10 ° and 45 ° (see figure 3 ), in particular to create a concave portion for housing the spring elements 8 of said tensioning system.
  • said two hooking wings 51,52; 61.62; 71,72 are formed on said first portion of length 11, on the outside of the box and said support edge 50; 60; 70 is materialized by the free end of the second portion of length 12, at a reduction of section of said profile 10.
  • said profile 10 comprises a hinge portion 17, longitudinal, within which is hinged a cover 18, in particular extruded aluminum.
  • This cover 18 is able to pass from an open position (see figure 5 ) allowing access to said spring elements 8 to a closed position (see figure 1 or 2 ) in which said cover 18 covers said spring elements 8 which are then housed in an intermediate volume between said profile 10 and said cover 18.
  • this hinge 17 is located at the base of the first portion of length 11 of the profile section, on the outside of the box.
  • the cover 18 is itself a profile that includes a hinge portion intended to engage with said hinge portion 17 of the profile 10.
  • the profile of the cover 18 may have, according to an embodiment, particularly illustrated in FIGS. Figures 7 to 10 , a groove 21.
  • the bottom of this groove 21 is intended to be traversed by a fixing screw 22 provided to lock the cover 18 on the section 10, in the closed position of the cover.
  • This groove 21 makes it possible to conceal the head of the screw which is then housed in said groove 21.
  • This groove 21 is arranged on the cover 18 in such a way that the screw does not come through the fabric 2, and thus leave free the automatic tensioning movement of the fabric 2.
  • the fixing screw 22 can be located between two successive spring elements, as suggested to the Figures 8 and 9 .
  • said structure 3; 4 comprises a bottom wall 30; 40 and the base of said first length portion 11 of the section of the profile 10 is fixed to said bottom wall 30; 40 by any suitable means, for example by means of fasteners such as screws or rivets or the like, and in particular without welding.
  • said bottom wall 30, 40 takes the form of a plate and said base of said first portion of length 11 of the section of the section comprises a shoulder 15 of dimension equal to the thickness of said bottom wall 30, 40, said bottom wall 30; 40 being received in said shoulder 15, to the interlocking play near.
  • said first length portion 11 of the profile section 10 comprises at least one C-shaped rail 13, longitudinally of the profile 10, projecting towards the inside of the box and intended for the assembly of two sections 10 belonging to one another. with two consecutive sides 5.7, 6.7, in angle, by means of angle connectors 14, such as in particular a metal bracket.
  • One of the branches of the angle connector 14 (ie bracket) is received in the C-rail 13 of one of the profiles 10, the other branch of the corner connector 14 received in the C-rail 13 of the profile consecutive.
  • the two consecutive profiles 10 may be arranged edge against edge, arranged at an angle relative to each other, in particular at 90 ° by miter cutting said profiles 10, for example at 45 °.
  • said box results from the assembly of at least two structures 3.4 placed end to end, two sidewalls 5,6 of one of the structures 3 extending respectively two sidewalls 5,6 other structure 4.
  • said four flanks, constituted by said profiles 10, are mutually coupled, two by two, by means of sleeves 19 each fitted to the interlocking play in the tubular portions of two sections 10 respectively belonging to said at least two structures 3,4 .
  • the sleeves 19 may be rectangular section tubes that are fitted to the interlocking play near in a tubular, rectangular, corresponding portion of the profile 10, in particular at the first length portion 11 of the section of the section 10.
  • device may comprise at least one reinforcing blade 16, bent, joining said bottom wall 30; 40, inside the structure to said section 10 of the structure 3; 4, said reinforcing blade 16 being arranged to oppose efforts that tend to constrain the profiles towards the inside of the box.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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Description

L'invention concerne un dispositif d'affichage à toile tendue et trouvera une application particulière dans le domaine de l'enseigne, en particulier en extérieur.The invention relates to a display device taut canvas and find a particular application in the field of the sign, especially outdoors.

L'homme de l'art du domaine de l'enseigne connaît les dispositifs d'affichage à toile tendue. L'information à afficher y est présentée sur une toile, souple, qui est tendue fortement sur un cadre pour obtenir un affichage parfait, sans pli. Le moindre pli disgracieux est accentué par l'éclairage, interne au dispositif, lorsque le dispositif en est équipé.Those skilled in the art of the field of the sign knows the display devices stretched canvas. The information to display is presented on a canvas, flexible, which is stretched strongly on a frame to obtain a perfect display, without crease. The least unsightly fold is accentuated by the illumination, internal to the device, when the device is equipped.

De tels dispositifs prennent généralement la forme d'un caisson, obtenu à partir d'une structure support, ou encore de plusieurs structures supports assemblées les unes aux autres. Chaque structure est généralement un mécano-soudée, plus ou moins complexe à fabriquer.Such devices generally take the form of a box, obtained from a support structure, or of several support structures assembled to each other. Each structure is usually a mechanically welded, more or less complex to manufacture.

La mise en tension de la toile sur le cadre du dispositif est obtenue au moyen d'un système de mise en tension de la toile.The tensioning of the fabric on the frame of the device is obtained by means of a tensioning system of the fabric.

Bien souvent ces dispositifs d'affichage sont installés, en extérieur, et en hauteur, nécessitant pour le poseur l'utilisation d'une nacelle élévatrice. Dans le cas de grandes enseignes, le caisson résulte bien souvent de l'assemblage de plusieurs structures mécano soudée, assemblées les unes aux autres, en hauteur. La mise en place de la toile et sa mise en tension sur le dispositif sont effectuées également en extérieur, en hauteur, dans des conditions plus ou moins aisées en fonction des conditions météorologiques. Ces opérations peuvent ainsi être particulièrement difficiles lors de vents plus ou moins forts, la toile réagissant alors comme une voile.Often these display devices are installed outdoors and at height, requiring the installer to use an aerial platform. In the case of large signs, the box often results from the assembly of several welded structures, assembled to each other, in height. The setting up of the fabric and its tensioning on the device are also performed outdoors, in height, in more or less easy conditions depending on the weather conditions. These operations can be particularly difficult during more or less strong winds, the web then reacting like a sail.

Les systèmes de mise en tension de la toile, connus de l'homme de l'art, exploités aujourd'hui, sont essentiellement de trois types, à savoir :

  • les systèmes de mise en tension à vis,
  • les systèmes de mise en tension à jonc,
  • les systèmes de mise en tension à ressorts.
The tensioning systems of the fabric, known to those skilled in the art, exploited today, are essentially of three types, namely:
  • screw tensioning systems,
  • tensioning systems with rushes,
  • tensioning systems with springs.

Les systèmes de mise en tension à vis comprennent sur le pourtour du caisson une pluralité d'unités de vissage, par exemple écartées entre elles tous les 20 cm, reliant chacune la toile et la structure. La mise en tension de la toile est donc obtenue par vissage de chacune des unités de vissage, avec un outil, les unes après les autres, sur la périphérie du dispositif. Ces opérations de vissage successives s'avèrent particulièrement fastidieuses et chronophages pour de grandes enseignes.The screw tensioning systems comprise on the periphery of the box a plurality of screw units, for example spaced apart from each other every 20 cm, each connecting the fabric and the structure. The tensioning of the fabric is thus obtained by screwing each of the screwing units with a tool, one after the other, on the periphery of the device. These successive screwing operations are particularly tedious and time-consuming for large brands.

Un autre défaut important de ce type de système est que la toile est tendue à une tension fixe. En fonction des conditions de l'environnement extérieure, et en particulier des variations d'humidité, la toile peut se contracter puis se détendre, engendrant l'apparition de plis disgracieux sur la zone d'affichage.Another important defect of this type of system is that the fabric is stretched at a fixed tension. Depending on the conditions of the outdoor environment, and in particular moisture variations, the fabric can contract and relax, causing unsightly folds on the display area.

Les systèmes de mise en tension à jonc permettent la mise en tension de la toile, par effet de pincement de la toile entre une rainure périphérique de la structure et plusieurs profilés (« les joncs ») emboités à force dans ladite rainure périphérique. La mise en tension s'effectue à force en insérant les joncs dans la rainure périphérique, usuellement à coup de maillet.The ring tensioning systems allow the tensioning of the fabric, by pinch effect of the fabric between a peripheral groove of the structure and several profiles ("the rods") forcibly fitted into said peripheral groove. The tension is forced by inserting the rods in the peripheral groove, usually by mallet.

Les documents FR 2-877-701 et FR2-840-964 en sont des exemples. De tels systèmes exigent pour le poseur une très bonne technicité de pose afin d'éviter les plis disgracieux. Bien souvent, une fois la toile tendue, pincée à sa périphérie, le surplus de toile dépassant du jonc est arasé, puis éliminé pour des raisons esthétiques. La mise en tension de la toile par un poseur inexpérimenté résulte souvent en l'apparition de plis, nécessitant une nouvelle intervention du poseur. Dans ce cas, le poseur n'a pas d'autre solution que de retirer un ou plusieurs joncs pour éliminer les plis et retendre la toile à nouveau. Cette opération peut être particulièrement fastidieuse, voire impossible si la toile a été trop arasée. Un autre inconvénient des systèmes de mise en tension à jonc est qu'ils ne conviennent pas pour des toiles trop épaisses.The documents FR 2-877-701 and FR2-840-964 are examples. Such systems require for the installer a very good installation technique to avoid unsightly folds. Often, once the canvas stretched, pinched at its periphery, the surplus of canvas protruding from the ring is leveled, then eliminated for aesthetic reasons. The tensioning of the canvas by an inexperienced installer often results in the appearance of folds, requiring a new intervention of the installer. In this case, the installer has no alternative but to remove one or more rods to eliminate the folds and retension the canvas again. This operation can be particularly tedious, if not impossible if the canvas has been too flattened. Another disadvantage of the ring tensioning systems is that they are not suitable for too thick fabrics.

Les systèmes de mise en tension à ressorts comprennent des ressorts, répartis sur la périphérie du caisson du dispositif d'affichage, reliant chacun la toile à la structure du caisson. Le document US2009/0019749A1 divulgue, par exemple, un tel dispositif d'affichage dont la toile, souple, est tendue au moyen d'éléments ressorts, répartis sur la périphérie de la toile, reliant chacun la toile à la structure. Chaque élément ressort est un ressort en traction, hélicoïdal, terminé à ces deux extrémités par deux crochets, dirigés suivant un même sens, l'un engageant avec la structure, l'autre traversant un oeillet de la toile. Selon le document US2009/0019749A1 chaque élément ressort comprend également une boucle destinée à être traversée par un outil (i.e. un tournevis) pour faciliter la mise en tension de l'élément ressort par effet de levier. Dans un tel dispositif la mise en tension de la toile est réalisée, pour chaque ressort, en une seule étape de mise en tension, ce qui peut s'avérer particulièrement fastidieux lorsque la toile est libre et subit l'action du vent.The spring tensioning systems comprise springs, distributed over the periphery of the box of the display device, each connecting the fabric to the structure of the box. The document US2009 / 0019749A1 discloses, for example, such a display device whose flexible web is stretched by means of spring elements, distributed on the periphery of the fabric, each connecting the fabric to the structure. Each spring element is a coil spring, helical, terminated at both ends by two hooks, directed in the same direction, one engaging with the structure, the other through an eyelet of the fabric. According to the document US2009 / 0019749A1 each spring element also comprises a loop intended to be traversed by a tool (ie a screwdriver) to facilitate the tensioning of the spring element by lever effect. In such a device the tensioning of the fabric is carried out, for each spring, in a single step of tensioning, which can prove particularly tedious when the fabric is free and undergoes the action of the wind.

Un autre système de tension, à ressorts, connu de l'inventeur, comprend des éléments ressorts reliant chacun la toile à la structure. L'accrochage de chaque élément ressort sur la structure est obtenu au moyen d'une crémaillère, rigidement solidaire du flanc de la structure support et d'une pièce crantée, correspondante, solidaire de l'une des extrémités de l'élément ressort, ladite pièce crantée comprenant plusieurs dents apte à engager au blocage avec ladite crémaillère pour tendre l'élément ressort à la tension voulue.Another spring tension system known to the inventor comprises spring elements each connecting the fabric to the structure. The attachment of each spring element on the structure is obtained by means of a rack rigidly secured to the sidewall of the support structure and a corresponding notched piece integral with one of the ends of the spring element. notched piece comprising a plurality of teeth adapted to engage in locking with said rack to tension the spring element to the desired tension.

Ce Système nécessite, pour chaque élément ressort, la présence d'une crémaillère, pièce métallique usinée, rigidement solidaire de la structure et d'une pièce crantée, pièce métallique usinée, correspondante à l'une des extrémités de l'élément ressort, grevant le coût de ce dispositif. Par ailleurs, avec un tel système il n'est pas possible de choisir le positionnement et la distribution des éléments ressorts sur la périphérie du dispositif d'affichage car ceux-ci doivent impérativement être positionnés respectivement en regard des crémaillères, locales, réparties et écartées distantes, les unes des autres, sur la périphérie du caisson du dispositif d'affichage.This system requires, for each spring element, the presence of a rack, machined metal part, rigidly secured to the structure and a part notched, machined metal part corresponding to one end of the spring element, encumbering the cost of this device. Furthermore, with such a system it is not possible to choose the positioning and distribution of the spring elements on the periphery of the display device because they must imperatively be positioned respectively opposite the racks, local, distributed and discarded spaced apart from one another on the periphery of the display box.

Le but de la présente invention est de pallier les inconvénients précités en proposant un dispositif d'affichage à toile tendue, équipé d'un système de mise en tension du type à ressort, facilitant la pose et la mise en tension de la toile.The object of the present invention is to overcome the aforementioned drawbacks by providing a display device with stretched fabric, equipped with a tensioning system of the spring type, facilitating the installation and tensioning of the fabric.

Plus particulièrement, un but de la présente invention est de proposer un tel dispositif d'affichage dont la mise en place et la mise en tension de la toile peuvent être réalisées sans difficulté, même dans le cas de vent.More particularly, an object of the present invention is to provide such a display device, the establishment and tensioning of the fabric can be performed without difficulty, even in the case of wind.

Un autre but de la présente invention est de proposer un tel dispositif d'affichage dont les positionnements et la distribution des éléments ressorts sur la périphérie du dispositif peuvent être choisis, selon les souhaits du poseur, notamment en fonction des conditions de pose.Another object of the present invention is to provide such a display device whose positioning and the distribution of the spring elements on the periphery of the device can be chosen, according to the wishes of the installer, in particular according to the laying conditions.

Un autre but de la présente invention est de proposer un tel dispositif d'affichage de construction aisée, et à moindre coût.Another object of the present invention is to provide such a display device of easy construction, and at a lower cost.

Un autre but de la présente invention est de proposer un tel dispositif d'affichage facilitant la réalisation de grandes enseignes.Another object of the present invention is to provide such a display device facilitating the production of large signs.

Un autre but de la présente invention est de proposer un tel dispositif d'affichage facilitant les opérations de maintenance (i.e. changement éclairage interne), en particulier de retrait de la toile.Another object of the present invention is to provide such a display device facilitating the maintenance operations (i.e. internal lighting change), in particular removal of the fabric.

Un autre but de la présente invention est de proposer un tel dispositif dont la structure est de conception simplifiée et peut être assemblée au moyen d'organes de fixations telles que des vis, et notamment sans soudure.Another object of the present invention is to provide such a device whose structure is of simplified design and can be assembled by means of fasteners such as screws, and in particular without welding.

D'autre buts et avantages de l'invention apparaîtront au cours de la description qui va suivre qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the invention will become apparent from the following description which is given for information only and which is not intended to limit it.

Aussi l'invention concerne un dispositif d'affichage à toile tendue, comprenant :

  • une toile destinée pour l'affichage,
  • au moins une structure formant un caisson, ladite structure comprenant au moins deux flancs, ainsi qu'au moins deux bords d'appui appartenant respectivement auxdits au moins deux flancs, entre lesquels est destinée à être tendue ladite toile,
  • un système de mise en tension de ladite toile comprenant des éléments ressorts destinés à relier chacun, en tension, la toile et ladite structure, l'une des extrémités dudit élément ressort crochetant la toile, l'autre extrémité dudit élément ressort crochetant la structure.
Also the invention relates to a display device with stretched canvas, comprising:
  • a canvas intended for display,
  • at least one structure forming a box, said structure comprising at least two sidewalls, and at least two support edges respectively belonging to said at least two sidewalls, between which said fabric is intended to be stretched,
  • a tensioning system of said fabric comprising spring elements intended to each connect, in tension, the fabric and said structure, one end of said spring element hooking the fabric, the other end of said spring element hooking the structure.

Selon le dispositif conforme à l'invention :

  • lesdits au moins deux flancs de la structure présentent chacun deux ailes d'accrochage dudit système de mise en tension de la toile, lesdites deux ailes d'accrochage étant parallèles entre elles, apte à coopérer chacune à l'accrochage avec l'une des extrémités d'un élément ressort, lesdites deux ailes d'accrochage étant agencées en deux positions distincts sur la largeur du flanc pour autoriser le réglage de la tension de chacun desdits éléments ressorts suivant deux valeurs de tension distinctes,
et dans lequel chaque aile d'accrochage s'étend continûment sur la longueur dudit flanc correspondant, un jonc étant reçu dans un ourlet de ladite toile en regard dudit flanc, apte à coopérer à l'accrochage avec l'autre extrémité de l'élément ressort de telle façon à autoriser le positionnement quelconque dudit élément ressort sur la longueur du flanc.According to the device according to the invention:
  • said at least two flanks of the structure each have two attachment wings of said tensioning system of the fabric, said two gripping wings being parallel to each other, each capable of cooperating with one of the ends a spring element, said two attachment wings being arranged in two distinct positions on the width of the sidewall to allow the adjustment of the tension of each of said spring elements according to two distinct tension values,
and in which each attachment wing extends continuously over the length of said corresponding sidewall, a rod being received in a hem of said web facing said sidewall, adapted to cooperate with the other end of the element hooking spring so as to allow any positioning of said spring element on the length of the sidewall.

Le dispositif conforme à l'invention permet avantageusement la mise en oeuvre d'un procédé pour la mise en tension de la toile dans lequel :

  • on tend la toile à une première valeur de tension en crochetant chaque élément ressort à l'une des ses extrémités à ladite toile et à l'autre extrémité à l'une des deux ailes d'accrochage,
  • on tend la toile à une deuxième valeur de tension, supérieure à ladite première valeur, en crochetant l'autre extrémité de chacun des éléments ressorts sur l'autre des deux ailes d'accrochage.
The device according to the invention advantageously allows the implementation of a method for the tensioning of the fabric in which:
  • the fabric is stretched at a first tension value by hooking each spring element at one of its ends to said fabric and at the other end to one of the two attachment wings,
  • the fabric is stretched to a second tension value, greater than said first value, by hooking the other end of each of the spring elements on the other of the two attachment wings.

La première étape de mise en tension de la toile à ladite première valeur de tension permet la mise en place aisée et rapide de la toile sur la structure, permettant de soustraire la toile à l'éventuelle influence du vent.The first step of tensioning the fabric at said first tension value allows the easy and fast installation of the fabric on the structure, to subtract the fabric to the possible influence of wind.

Toutefois cette première valeur de tension peut ne pas être suffisante pour supprimer l'ensemble des plis sur la toile, susceptibles de dégrader l'affichage.However, this first voltage value may not be sufficient to remove all the folds on the canvas, which may degrade the display.

Dans un deuxième temps l'opérateur peut alors étirer plus fortement chacun des éléments ressorts, et ainsi tendre plus fortement la toile à ladite deuxième valeur de tension, afin de supprimer les derniers plis sur la toile.In a second step the operator can then stretch more strongly each of the spring elements, and thus stretch the fabric more strongly to said second voltage value, in order to remove the last folds on the fabric.

Grâce auxdites ailes d'accrochage qui s'étendent chacune continûment sur la longueur du flanc, ainsi qu'au jonc qui s'étend également continûment sur cette longueur, il est possible de crocheter chacun des éléments ressorts en différentes positions sur la longueur du flanc.Thanks to said attachment wings which each extend continuously along the length of the sidewall, and to the ring which also extends continuously over this length, it is possible to hook each of the spring elements in different positions along the length of the sidewall. .

Le jonc reçu dans l'ourlet permet par ailleurs une répartition uniforme de l'effort de traction sur la périphérie de la toile, et ce contrairement à des fixations locales, (i.e. des oeillets) qui répartiraient les efforts de manière discontinue, favorisant ainsi l'apparition de plis sur la toile.The ring received in the hem also allows a uniform distribution of the tensile force on the periphery of the fabric, and this in contrast to local fasteners (ie eyelets) which distribute the efforts in a discontinuous manner, thus promoting the appearance of folds on the canvas.

Selon un mode de réalisation facilitant les opérations d'accrochage, chaque élément ressort est un ressort hélicoïdale de traction terminé à ses deux extrémités par deux crochets, les deux crochets aux extrémités du ressort étant avantageusement dirigés suivant deux sens opposés. L'un des crochets permet alors de crocheter la toile vers l'extérieur, l'autre crochet étant tourné vers l'intérieur pour engager avec l'une des deux ailes d'accrochage.According to an embodiment facilitating the attachment operations, each spring element is a helical pull spring terminated at both ends by two hooks, the two hooks at the ends of the spring being advantageously directed in two opposite directions. One of the hooks then makes it possible to crochet the fabric towards the outside, the other hook being turned inwards to engage with one of the two fastening wings.

Selon un mode de réalisation simplifiant la construction du dispositif chacun desdits bords d'appui, ainsi que lesdites deux ailes d'accrochage correspondantes audit bord d'appui peuvent être constitués par un profilé métallique, d'un seul tenant.According to an embodiment simplifying the construction of the device each of said support edges, and said two corresponding attachment wings to said support edge may be constituted by a metal section, in one piece.

Plus particulièrement, lesdits au moins deux flancs sont constitués chacun par ledit profilé qui présente une section allongée comprenant une première partie de longueur, droite, tubulaire, et une seconde partie de longueur, tubulaire, inclinée par rapport à ladite première partie de longueur, dirigée vers l'extérieure du caisson. Lesdites deux ailes d'accrochage sont alors constituées sur ladite première partie de longueur de la section, du côté tourné vers l'extérieur du caisson et ledit bord d'appui est matérialisé par l'extrémité libre de la seconde partie de longueur, au niveau d'une réduction de section du profilé.More particularly, said at least two sidewalls each consist of said section which has an elongate section comprising a first part of length, straight, tubular, and a second part of length, tubular, inclined with respect to said first portion of length, directed towards the outside of the box. Said two attachment wings are then formed on said first length portion of the section, on the outwardly facing side of the box and said bearing edge is materialized by the free end of the second portion of length, at the a section reduction of the profile.

Eventuellement ladite première partie de longueur du profilé comprend au moins un rail en C, dirigé suivant la longueur du profilé, en saillie vers l'intérieur du caisson et destiné pour l'assemblage de deux profilés appartenant à deux flancs consécutifs en angle, notamment au moyen de raccords d'angle, telle notamment une équerre métallique. L'une des branches du raccord d'angle (i.e. équerre) est reçue dans le rail en C de l'un des profilés, l'autre branche du raccord étant reçue dans le rail en C du profilé consécutif. Les deux profilés consécutifs peuvent être disposés chant contre chant, disposés en angle l'un par rapport à l'autre, notamment à 90°, grâce à une coupe en onglet desdits profilés, à 45° notamment.Possibly said first length portion of the profile comprises at least one C-shaped rail, directed along the length of the profile, projecting towards the inside of the box and intended for the assembly of two sections belonging to two consecutive edges at an angle, in particular at means of corner fittings, such as a metal bracket. One of the branches of the corner fitting (i.e. angle) is received in the C-rail of one of the profiles, the other branch of the connector being received in the C-rail of the consecutive profile. The two consecutive profiles can be arranged edge against edge, arranged at an angle relative to each other, in particular at 90 °, thanks to a miter section of said profiles, 45 ° in particular.

Selon des caractéristiques optionnelles de l'invention, prises seules ou en combinaison :

  • ladite au moins une structure comprend une paroi de fond et la base de ladite première partie de longueur de la section du profilé est fixée à ladite paroi de fond;
  • la paroi de fond prend la forme d'une plaque et ladite base de ladite première partie de longueur de la section du profilé comprend un épaulement de dimension égal à l'épaisseur de ladite paroi de fond, ladite paroi de fond étant reçue dans ledit épaulement, au jeu d'emboitement près ;
  • le dispositif comprend au moins une lame de renfort, coudée, joignant ladite paroi de fond, à l'intérieur de la structure, audit profilé de la structure ;
  • ledit profilé comprend une charnière, longitudinale, à l'intérieure de laquelle est articulé un capot, notamment en aluminium extrudé, ledit capot étant apte à passer d'une position d'ouverture autorisant l'accès auxdits éléments ressorts vers une position de fermeture dans laquelle ledit capot recouvre lesdits éléments ressorts qui sont alors logés dans un volume intermédiaire entre ledit profilé et ledit capot.
According to optional features of the invention, taken alone or in combination:
  • said at least one structure comprises a bottom wall and the base of said first length portion of the profile section is attached to said bottom wall;
  • the bottom wall takes the form of a plate and said base of said first length portion of the section of the profile comprises a shoulder of dimension equal to the thickness of said bottom wall, said bottom wall being received in said shoulder , at the interlocking game near;
  • the device comprises at least one reinforcing blade, bent, joining said bottom wall, inside the structure, to said profile of the structure;
  • said profile comprises a hinge, longitudinal, inside which is articulated a cover, in particular extruded aluminum, said cover being able to pass from an open position allowing access to said spring elements to a closed position in which cover covers said spring elements which are then housed in an intermediate volume between said profile and said cover.

Selon un mode de réalisation permettant l'obtention de dispositif d'affichage de grande taille, ledit caisson résulte de l'assemblage d'au moins deux structures mises bout à bout, deux flancs de l'une des structures prolongeant respectivement deux flancs de l'autre structure, lesdits quatre flancs constitués par lesdits profilés étant couplés mutuellement, deux à deux, au moyen de manchons emmanchés chacun au jeu d'emboitement près dans les partie tubulaires de deux profilés appartenant respectivement auxdites au moins deux structures.According to one embodiment for obtaining a large display device, said box results from the assembly of at least two structures placed end to end, two sides of one of the structures respectively extending two sides of the body. other structure, said four sides formed by said profiles being mutually coupled, two by two, by means of sleeves each fitted to the interlocking play near in the tubular portions of two sections respectively belonging to said at least two structures.

L'invention sera mieux comprise à la lecture de la description suivante accompagnée des figures en annexe parmi lesquelles :

  • La figure 1 est une vue, selon un coupe transversale, d'un dispositif conforme à l'invention selon un mode de réalisation, la toile étant tendue à ladite première valeur de tension.
  • La figure 2 est une vue du dispositif tel qu'illustré à la figure 1, la toile tendue à la seconde valeur de tension.
  • La figure 3 et la figure 4 sont respectivement des vues de profilés de dispositifs conformes à l'invention selon un deuxième et un troisième mode de réalisation.
  • La figure 5 est une vue de détail d'un profilé du dispositif tel qu'illustré à la figure 1, capot ouvert.
  • La figure 6 est une vue de face du dispositif, tel qu'illustré à figure 1, ladite toile retirée.
  • La figure 7 est une vue d'un profilé d'un dispositif conforme à l'invention selon un quatrième mode de réalisation.
  • La figure 8 est vue selon une coupe transversale, d'un dispositif conforme à l'invention selon ledit quatrième mode de réalisation, la toile étant tendue à ladite première valeur de tension.
  • La figure 9 est vue selon une coupe transversale, d'un dispositif conforme à l'invention selon ledit quatrième mode de réalisation, la toile étant tendue à ladite deuxième valeur de tension.
The invention will be better understood on reading the following description accompanied by the appended figures, among which:
  • The figure 1 is a view, in cross section, of a device according to the invention according to one embodiment, the fabric being tensioned at said first tension value.
  • The figure 2 is a view of the device as illustrated in figure 1 , the canvas stretched to the second tension value.
  • The figure 3 and the figure 4 are respectively views of profiles of devices according to the invention according to a second and a third embodiment.
  • The figure 5 is a detailed view of a profile of the device as illustrated in FIG. figure 1 , open hood.
  • The figure 6 is a front view of the device, as shown in figure 1 , said canvas removed.
  • The figure 7 is a view of a profile of a device according to the invention according to a fourth embodiment.
  • The figure 8 is seen in cross section, a device according to the invention according to said fourth embodiment, the fabric being tensioned at said first voltage value.
  • The figure 9 is viewed in cross section, a device according to the invention according to said fourth embodiment, the fabric being tensioned at said second voltage value.

Aussi l'invention concerne un dispositif d'affichage 1 à toile tendue, comprenant :

  • une toile 2 destinée pour l'affichage,
  • au moins une structure 3,4 formant un caisson, ladite structure 3,4 comprenant au moins deux flancs 5,6,7, ainsi qu'au moins deux bords d'appui 50,60,70 appartenant respectivement auxdits au moins deux flancs 5,6,7, entre lesquels est destinée à être tendue ladite toile 2,
  • un système de mise en tension de ladite toile 2 comprenant des éléments ressorts 8 destinés à relier chacun, en tension, la toile 2 et ladite structure 3;4, l'une des extrémités dudit élément ressort 8 crochetant la toile 2, l'autre extrémité dudit élément ressort 8 crochetant la structure 3;4.
Also, the invention relates to a display device 1 with stretched fabric, comprising:
  • a canvas 2 intended for display,
  • at least one structure 3,4 forming a box, said structure 3,4 comprising at least two sidewalls 5,6,7, and at least two bearing edges 50,60,70 respectively belonging to said at least two sidewalls 5 , 6.7, between which is intended to be stretched said web 2,
  • a system for tensioning said fabric 2 comprising spring elements 8 intended to each connect, in tension, the fabric 2 and said structure 3; 4, one end of said spring element 8 hooking the fabric 2, the other end of said spring member 8 hooking the structure 3; 4.

Dans le cas de dispositif de taille modeste notamment, le caisson peut être constitué d'une unique structure (non illustrée). Ladite structure peut alors comporter quatre flancs, deux à deux parallèles. Les quatre bords d'appui appartenant respectivement aux quatre flancs formant un cadre d'appui sur lequel est tendue ladite toile.In the case of modest size device in particular, the box may consist of a single structure (not shown). Said structure can then comprise four flanks, two to two parallel. The four bearing edges respectively belonging to the four sides forming a support frame on which said canvas is stretched.

Alternativement, selon un autre mode de réalisation illustré non limitativement à la figure 6, et plus particulièrement dans le cas de dispositif 1 de taille plus conséquente, le caisson peut résulter de l'assemblage d'au moins deux structures 3,4. Les flancs 5,6,7, et leur bord d'appui 50,60,70 des structures se prolongent, les bords d'appui 50,60,70 formant un cadre d'appui sur lequel est tendue ladite toile.Alternatively, according to another embodiment shown in a non-limiting manner to the figure 6 , and more particularly in the case of device 1 of larger size, the box can result from the assembly of at least two structures 3,4. The flanks 5, 6, 7, and their support edge 50, 60, 70 of the structures extend, the bearing edges 50, 60, 70 forming a support frame on which said fabric is stretched.

Eventuellement le caisson, et en particulier la ou chaque structure 3,4 peut intégrer dans son volume intérieur un dispositif d'éclairage électrique permettant l'éclairage de la toile 2, par l'arrière de la toile 2.Optionally the box, and in particular the or each structure 3,4 can integrate into its interior volume an electric lighting device for lighting the fabric 2, by the back of the fabric 2.

Selon l'invention lesdits au moins deux flancs 5,6,7 de ladite au moins une structure 3,4 présentent chacun deux ailes d'accrochage 51,52 ;61,62 ;71,72 dudit système de mise en tension de la toile 2, lesdites deux ailes d'accrochage 51,52 ;61,62 ;71,72 étant parallèles entre elles, apte à coopérer chacune à l'accrochage avec l'une des extrémités d'un élément ressort 8.According to the invention, said at least two sidewalls 5, 6, 7 of said at least one structure 3, 4 each have two attachment wings 51, 52, 61, 62, 71, 72 of said system for tensioning the fabric. 2, said two gripping wings 51, 52, 61, 62, 71, 72 being parallel to one another, each capable of cooperating with one of the ends of a spring element 8.

Avantageusement lesdites deux ailes d'accrochage 51,52 ;61,62 ;71,72 sont agencées en deux positions distincts sur la largeur du flanc pour autoriser le réglage de la tension de chacun desdits éléments ressort 8 suivant deux valeurs de tension distinctes.Advantageously, said two attachment wings 51, 52, 61, 62, 71, 72 are arranged in two distinct positions along the width of the sidewall to allow the tension of each of said spring elements 8 to be adjusted according to two distinct tension values.

Le dispositif 1 conforme à l'invention permet avantageusement la mise en oeuvre d'un procédé pour la mise en tension de la toile dans lequel :

  • on tend la toile 2 à une première valeur de tension en crochetant chaque élément ressort 8 à l'une des ses extrémités à ladite toile 2 et à l'autre extrémité à l'une 51 ; 61 ; 71 des deux ailes d'accrochage,
  • on tend la toile à une deuxième valeur de tension, supérieure à ladite première valeur, en crochetant l'autre extrémité de chacun des éléments ressorts sur l'autre 52 ; 62 ; 72 des deux ailes d'accrochage.
The device 1 according to the invention advantageously allows the implementation of a method for the tensioning of the fabric in which:
  • the fabric 2 is stretched at a first tension value by hooking each spring element 8 at one of its ends to said fabric 2 and at the other end to the one 51; 61; 71 of the two hooking wings,
  • the fabric is stretched to a second voltage value, greater than said first value, by hooking the other end of each of the spring elements on the other one 52; 62; 72 of the two wings of attachment.

La première étape de mise en tension permet au poseur la mise en place rapide et aisée de la toile sur la structure du dispositif, sans effort, ladite toile étant en appui sur lesdits bords 50,60,70 afin de soustraire la toile à l'éventuelle influence du vent. Cette première étape permet, par ailleurs, le pré-centrage du visuel de la toile sur le cadre d'appui.
La première valeur de tension n'est toutefois pas forcément suffisante pour supprimer l'ensemble des plis sur la toile 2, l'affichage pouvant rester imparfait.The first tensioning step allows the installer to quickly and easily place the fabric on the structure of the device, effortlessly, said fabric being supported on said edges 50,60,70 to subtract the fabric to the possible influence of the wind. This first step allows, moreover, the pre-centering of the visual of the canvas on the support frame.
The first voltage value is however not necessarily sufficient to remove all the folds on the fabric 2, the display may remain imperfect.

Lors de la seconde étape, le poseur décroche l'extrémité de chaque élément ressort 8 engageant avec ladite aile d'accrochage 51 ; 61 ; 71 et tend plus fortement l'élément ressort 8 pour l'accrocher sur l'autre 52 ; 62 ; 72 aile d'accrochage. La mise en tension de la toile à la seconde valeur de tension permet alors de supprimer les éventuels derniers plis de la toile 2.During the second step, the installer picks up the end of each spring element 8 engaging with said attachment wing 51; 61; 71 and tends more strongly the spring element 8 to hang on the other 52; 62; 72 wing attachment. The tensioning of the fabric at the second tension value then makes it possible to eliminate the possible final folds of the fabric 2.

Selon une caractéristique essentielle de l'invention chaque aile d'accrochage 51,52 ;61,62 ;71,72 s'étend continûment sur la longueur dudit flanc 5,6,7 correspondant, un jonc 9 étant reçu dans un ourlet 2 de ladite toile 2 en regard dudit flanc 5,6,7, apte à coopérer à l'accrochage avec l'autre extrémité de l'élément ressort 8 de telle façon à autoriser le positionnement quelconque dudit élément ressort 8 sur la longueur du flanc 5 ;6 ;7.According to an essential characteristic of the invention, each attachment wing 51, 52, 61, 62, 71, 72 extends continuously over the length of said corresponding sidewall 5, 6, a ring 9 being received in a hem 2 of said web 2 facing said sidewall 5, 6, 7, adapted to cooperate with the other end of the spring element 8 in such a way as to allow any positioning of said spring element 8 along the length of the sidewall 5; 6, 7.

Grâce auxdites ailes d'accrochage 51,52 ;61,62 ;71,72 qui s'étendent chacune continûment sur la longueur du flanc 5 ;6 ;7, ainsi qu'au jonc 9 qui s'étend également continûment sur cette longueur, il est possible de crocheter chacun des éléments ressorts 8 en différentes positions sur la longueur du flanc 5 ;6 ;7.With said attachment wings 51, 52, 61, 62, 71, 72 which each extend continuously along the length of the sidewall 5; 6; 7, and to the ring 9 which also extends continuously over this length, it is possible to hook each of the spring elements 8 in different positions along the length of the sidewall 5; 6; 7.

La distribution et la répartition des éléments ressorts 8 sont laissées au choix du poseur et sont quasiment illimitées.The distribution and distribution of the spring elements 8 are left to the choice of the installer and are almost unlimited.

Le jonc 9 reçu dans l'ourlet 20 permet par ailleurs une répartition uniforme de l'effort de traction sur la périphérie de la toile 2.The ring 9 received in the hem 20 also allows a uniform distribution of the tensile force on the periphery of the fabric 2.

De préférence chaque élément ressort 8 est un ressort 80 hélicoïdale de traction terminé à ses deux extrémités par deux crochets 81,82.Preferably each spring member 8 is a coil spring 80 traction terminated at both ends by two hooks 81,82.

Avantageusement les deux crochets 81,82 aux extrémités du ressort 80 sont dirigés suivant deux sens opposés. Aussi tel qu'illustré à la figure 1 l'un des crochets est tourné vers le caisson permettant d'engager avec l'une des deux ailes d'accrochage, tandis que le crochet à l'autre extrémité du ressort 80 crochète la toile 2 et le jonc 9 vers l'extérieur. D'après les constations de l'inventeur une telle disposition des crochets, suivant des sens opposés facilite la pose.Advantageously, the two hooks 81, 82 at the ends of the spring 80 are directed in two opposite directions. Also as illustrated in figure 1 one of the hooks is turned towards the box for engaging with one of the two hooking wings, while the hook at the other end of the spring 80 hooks the fabric 2 and the ring 9 to the outside. According to the findings of the inventor such an arrangement of the hooks, in opposite directions facilitates the pose.

De préférence, le caisson adopte la forme d'un parallélépipède rectangle et comprend quatre flancs (voir figure 6), deux à deux parallèles entre eux. Les bords d'appui forment alors un cadre rectangulaire sur lequel est mis en tension la toile 2, tendue sur ses quatre côtés.Preferably, the box takes the form of a rectangular parallelepiped and comprises four flanks (see figure 6 ), two by two parallel to each other. The support edges then form a rectangular frame on which is tensioned the fabric 2, stretched on all four sides.

Selon un mode de réalisation chacun desdits bords d'appui 50, 60, 70, ainsi que lesdites deux ailes d'accrochage 51,52 ; 61,62 ; 71,72 correspondantes audit bord d'appui 50; 60; 70 sont constitués par un profilé métallique 10, d'un seul tenant.According to one embodiment each of said support edges 50, 60, 70, as well as said two attachment wings 51, 52; 61.62; 71,72 corresponding to said support edge 50; 60; 70 are constituted by a metal section 10, in one piece.

Un tel profilé 10 métallique est obtenu par les techniques d'extrusion et est illustré, à titre d'exemples non limitatifs, aux figures 1 à 5.Such a metal profile is obtained by extrusion techniques and is illustrated, by way of nonlimiting examples, in Figures 1 to 5 .

Plus particulièrement, selon un mode de réalisation illustré non limitativement à la figure 1 lesdits au moins deux flancs 5,6,7 peuvent être constitués chacun par ledit profilé 10, ledit profilé 10 présentant une section allongée comprenant une première partie de longueur 11, droite, tubulaire, et une seconde partie de longueur 12, tubulaire, inclinée par rapport à ladite première partie de longueur 11, dirigée vers l'extérieure du caisson.
De préférence, la première partie de longueur 11 de la section s'étend à angle droit de la paroi de fond du caisson. Ladite seconde partie de longueur 12 prolonge la première partie de longueur 11 et est inclinée par rapport à la première partie 11 d'un angle α compris entre 10° et 45° (voir figure 3), permettant notamment de créer une partie concave destinée pour le logement des éléments ressorts 8 dudit système de mise en tension.
De préférence lesdites deux ailes d'accrochage 51,52 ; 61,62 ; 71,72 sont constituées sur ladite première partie de longueur 11, du côté de l'extérieur du caisson et ledit bord d'appui 50 ; 60 ; 70 est matérialisé par l'extrémité libre de la seconde partie de longueur 12, au niveau d'une réduction de section dudit profilé 10.
Avantageusement ledit profilé 10 comprend une partie de charnière 17, longitudinale, à l'intérieure de laquelle est articulé un capot 18, notamment en aluminium extrudé. Ce capot 18 est apte à passer d'une position d'ouverture (voir figure 5) autorisant l'accès auxdits éléments ressorts 8 vers une position de fermeture (voir figure 1 ou 2) dans laquelle ledit capot 18 recouvre lesdits éléments ressorts 8 qui sont alors logées dans un volume intermédiaire entre ledit profilé 10 et ledit capot 18. Selon un mode de réalisation cette charnière 17 est située au niveau de la base de la première partie de longueur 11 de la section du profilé, du côté de l'extérieure du caisson.More particularly, according to an embodiment illustrated in a non-limiting manner to the figure 1 said at least two sidewalls 5, 6, 7 may each be constituted by said profile 10, said profile 10 having an elongate section comprising a first part of length 11, straight, tubular, and a second part of length 12, tubular, inclined by relative to said first portion of length 11, directed towards the outside of the box.
Preferably, the first length portion 11 of the section extends at right angles to the bottom wall of the box. Said second portion of length 12 extends the first portion of length 11 and is inclined relative to the first portion 11 of an angle α between 10 ° and 45 ° (see figure 3 ), in particular to create a concave portion for housing the spring elements 8 of said tensioning system.
Preferably said two hooking wings 51,52; 61.62; 71,72 are formed on said first portion of length 11, on the outside of the box and said support edge 50; 60; 70 is materialized by the free end of the second portion of length 12, at a reduction of section of said profile 10.
Advantageously said profile 10 comprises a hinge portion 17, longitudinal, within which is hinged a cover 18, in particular extruded aluminum. This cover 18 is able to pass from an open position (see figure 5 ) allowing access to said spring elements 8 to a closed position (see figure 1 or 2 ) in which said cover 18 covers said spring elements 8 which are then housed in an intermediate volume between said profile 10 and said cover 18. According to one embodiment this hinge 17 is located at the base of the first portion of length 11 of the profile section, on the outside of the box.

Selon un mode de réalisation le capot 18 est lui-même un profilé qui comprend une partie de charnière destinée à engager avec ladite partie de charnière 17 du profilé 10. Le profilé du capot 18 peut présenter, selon un mode de réalisation notamment illustré aux figures 7 à 10, une rainure 21. Le fond de cette rainure 21 est destinée à être traversée par une vis de fixation 22 prévue pour verrouiller le capot 18 sur le profilé 10, en position de fermeture du capot. Cette rainure 21 permet de cacher la tête de la vis qui est alors logée dans ladite rainure 21.
Cette rainure 21 est agencée sur le capot 18 de telle façon à ce que la vis ne vienne pas traverser la toile 2, et donc de laisser libre le mouvement automatique de tension de la toile 2.
Eventuellement, la vis de fixation 22 peut être située, entre deux éléments ressorts successifs, tel que suggéré aux figures 8 et 9.
Selon un mode de réalisation, ladite structure 3 ;4 comprend une paroi de fond 30 ;40 et la base de ladite première partie de longueur 11 de la section du profilé 10 est fixée à ladite paroi de fond 30 ;40 par tout moyen adapté, par exemple par l'intermédiaire d'organe de fixation tels que vis ou rivets ou similaire, et notamment sans soudure.According to one embodiment, the cover 18 is itself a profile that includes a hinge portion intended to engage with said hinge portion 17 of the profile 10. The profile of the cover 18 may have, according to an embodiment, particularly illustrated in FIGS. Figures 7 to 10 , a groove 21. The bottom of this groove 21 is intended to be traversed by a fixing screw 22 provided to lock the cover 18 on the section 10, in the closed position of the cover. This groove 21 makes it possible to conceal the head of the screw which is then housed in said groove 21.
This groove 21 is arranged on the cover 18 in such a way that the screw does not come through the fabric 2, and thus leave free the automatic tensioning movement of the fabric 2.
Optionally, the fixing screw 22 can be located between two successive spring elements, as suggested to the Figures 8 and 9 .
According to one embodiment, said structure 3; 4 comprises a bottom wall 30; 40 and the base of said first length portion 11 of the section of the profile 10 is fixed to said bottom wall 30; 40 by any suitable means, for example by means of fasteners such as screws or rivets or the like, and in particular without welding.

Selon un mode de réalisation illustré non limitativement aux figures, ladite paroi de fond 30 ;40 prend la forme d'une plaque et ladite base de ladite première partie de longueur 11 de la section du profilé comprend un épaulement 15 de dimension égal à l'épaisseur de ladite paroi de fond 30 ;40, ladite paroi de fond 30 ;40 étant reçue dans ledit épaulement 15, au jeu d'emboitement près.According to an embodiment illustrated without limitation to the figures, said bottom wall 30, 40 takes the form of a plate and said base of said first portion of length 11 of the section of the section comprises a shoulder 15 of dimension equal to the thickness of said bottom wall 30, 40, said bottom wall 30; 40 being received in said shoulder 15, to the interlocking play near.

Selon un mode de réalisation ladite première partie de longueur 11 de la section du profilé 10 comprend au moins un rail 13 en C, longitudinalement au profilé 10, en saillie vers l'intérieur du caisson et destiné pour l'assemblage de deux profilés 10 appartenant à deux flancs consécutifs 5,7 ;6,7, en angle, au moyen de raccords d'angle 14, telle notamment une équerre métallique.According to one embodiment, said first length portion 11 of the profile section 10 comprises at least one C-shaped rail 13, longitudinally of the profile 10, projecting towards the inside of the box and intended for the assembly of two sections 10 belonging to one another. with two consecutive sides 5.7, 6.7, in angle, by means of angle connectors 14, such as in particular a metal bracket.

L'une des branches du raccord d'angle 14 (i.e. équerre) est reçue dans le rail 13 en C de l'un des profilés 10, l'autre branche du raccord d'angle 14 reçue dans le rail 13 en C du profilé consécutif. Les deux profilés consécutifs 10 peuvent être disposés chant contre chant, disposés en angle l'un par rapport à l'autre, notamment à 90° grâce à une coupe en onglet desdits profilés 10, par exemple à 45°.
Selon un mode de réalisation, ledit caisson résulte de l'assemblage d'au moins deux structures 3,4 mises bout-à-bout, deux flancs 5,6 de l'une des structures 3 prolongeant respectivement deux flancs 5,6 de l'autre structure 4.
Avantageusement lesdits quatre flancs, constitués par lesdits profilés 10, sont couplés mutuellement, deux à deux, au moyen de manchons 19 emmanchés chacun au jeu d'emboitement près dans les parties tubulaires de deux profilés 10 appartenant respectivement auxdites au moins deux structures 3,4.
Les manchons 19 peuvent être des tubes de section en rectangle qui sont emmanchés au jeu d'emboitement près dans une partie tubulaire, rectangulaire, correspondante du profilé 10, notamment au niveau de la première partie de longueur 11 de la section du profilé 10. Le dispositif peut comprendre au moins une lame de renfort 16, coudée, joignant ladite paroi de fond 30 ; 40, à l'intérieure de la structure audit profilé 10 de la structure 3 ; 4, ladite lame de renfort 16 étant agencée pour s'opposer aux efforts qui tendent à contraindre les profilés vers l'intérieur du caisson.One of the branches of the angle connector 14 (ie bracket) is received in the C-rail 13 of one of the profiles 10, the other branch of the corner connector 14 received in the C-rail 13 of the profile consecutive. The two consecutive profiles 10 may be arranged edge against edge, arranged at an angle relative to each other, in particular at 90 ° by miter cutting said profiles 10, for example at 45 °.
According to one embodiment, said box results from the assembly of at least two structures 3.4 placed end to end, two sidewalls 5,6 of one of the structures 3 extending respectively two sidewalls 5,6 other structure 4.
Advantageously, said four flanks, constituted by said profiles 10, are mutually coupled, two by two, by means of sleeves 19 each fitted to the interlocking play in the tubular portions of two sections 10 respectively belonging to said at least two structures 3,4 .
The sleeves 19 may be rectangular section tubes that are fitted to the interlocking play near in a tubular, rectangular, corresponding portion of the profile 10, in particular at the first length portion 11 of the section of the section 10. device may comprise at least one reinforcing blade 16, bent, joining said bottom wall 30; 40, inside the structure to said section 10 of the structure 3; 4, said reinforcing blade 16 being arranged to oppose efforts that tend to constrain the profiles towards the inside of the box.

Naturellement d'autres modes de réalisation auraient pu être envisagés sans pour autant sortir du cadre de l'invention telle que définie par les revendications ci-après.Naturally other embodiments could have been envisaged without departing from the scope of the invention as defined by the claims below.

NOMENCLATURENOMENCLATURE

  • 1 Dispositif d'affichage,1 display device,
  • 2 Toile,2 Canvas,
  • 3,4 Structure,3.4 Structure,
  • 5, 6, 7 Flancs structure,5, 6, 7 Flanks structure,
  • 8 Eléments ressorts,8 Spring elements,
  • 9 Jonc,9 Rush,
  • 10 Profilé métallique,10 Metal profile,
  • 11 Première partie de longueur (Profilé 10),11 first part of length (section 10),
  • 12 Seconde partie de longueur (Profilé 10),12 second part of length (section 10),
  • 13 Rail en C (Profilé 10),13 C-Rail (Profile 10),
  • 14 Raccords d'angle,14 Corner Fittings,
  • 15 Epaulement (Profilé 10),15 Shoulder (Profile 10),
  • 16 Lame de renfort,16 Reinforcement blade,
  • 17 Charnière (Profilé 10/Capot 18),17 Hinge (Profile 10 / Hood 18),
  • 18 Capot,18 Hood,
  • 19 Manchons,19 Sleeves,
  • 20 Ourlet (Toile 2),20 Hem (Canvas 2),
  • 21 Rainure (Capot 18),21 Groove (Hood 18),
  • 22 Vis de fixation (Capot 18) 30 Paroi de fond (Structure 3),22 Fastening screw (Cover 18) 30 Bottom wall (Structure 3),
  • 40 Paroi de fond (Structure 4),40 Bottom wall (Structure 4),
  • 50 Bord d'appui (Flanc 5),50 Supporting edge (sidewall 5),
  • 51,52 Ailes d'accrochage (Flanc 5),51,52 Hanging wings (side 5),
  • 60 Bord d'appui (Flanc 6),60 Supporting edge (sidewall 6),
  • 61,62 Ailes d'accrochage (Flanc 6),61,62 Hanging wings (Flank 6),
  • 70 Bord d'appui (Flanc 7),70 Supporting edge (sidewall 7),
  • 71,72 Ailes d'accrochage (Flanc 7),71,72 Hanging wings (side 7),
  • 80 Ressort hélicoïdale de traction,80 Helical spring for traction,
  • 81,82 Crochets (Ressort 80).81,82 Hooks (Spring 80).

Claims (11)

  1. Stretched-canvas display device (1), comprising:
    - a canvas (2) intended for the display,
    - at least one structure (3, 4) forming a housing, said structure (3, 4) comprising at least two flanks (5, 6, 7) as well as at least two support edges (50, 60, 70) belonging respectively to said at least two flanks (5, 6, 7), between which said canvas (2) is intended to be tensioned,
    - a system for tensioning said canvas (2) comprising spring elements (8) intended to connect each of, in tension, the canvas (2) and said structure (3;4), with one of the ends of said spring element (8) hooking the canvas (2), the other end of said spring element (8) hooking the structure (3;4),
    characterised in that said at least two flanks (5, 6, 7) of said at least one structure (3, 4) each have two hooking wings (51, 52; 61, 62; 71, 72) of said system for tensioning the canvas (2), with said two hooking wings (51, 52; 61, 62; 71, 72) being parallel to one another, able to each cooperate with the hooking with one of the ends of a spring element (8), said two hooking wings (51, 52; 61, 62; 71, 72) being arranged in two separate positions over the width of the flank in order to authorise the adjusting of the tensioning of each of said spring elements according to two separate tension values,
    and wherein each hooking wing (51, 52; 61, 62; 71, 72) extends continuously over the length of said corresponding flank (5, 6, 7), with a snap ring (9) being received in a hem (20) of said canvas (2) facing said flank (5, 6, 7), able to cooperate with the hooking with the other end of the spring element (8) in such a way as to authorise any positioning of said spring element (8) over the length of the flank (5, 6, 7).
  2. Device according to claim 1, wherein each of said support edges (50; 60; 70), as well as said two hooking wings (51, 52; 61, 62; 71, 72) corresponding to said support edge (50; 60; 70) are comprised of a metal profile (10), of a single piece.
  3. Device according to claim 1 or 2, wherein said at least two flanks (5, 6, 7) are each comprised by said profile (10), said profile (10) having a prolonged section comprising a first portion of length (11), straight, tubular, and a second portion of length (12), tubular, inclined with regards to said first portion of length (11), directed towards the outside of the housing and wherein:
    - said two hooking wings (51, 52; 61, 62; 71, 72) are constituted over said first portion of length (11), on the outside side of the housing,
    - said support edge (50; 60; 70) is materialised by the free end of the second portion of length (12).
  4. Device according to claim 3, wherein said first portion of length (11) comprises at least one rail (13) as a C, protruding towards the inside of the housing and intended for the assembly of two profiles (10) belonging to two consecutive flanks (5, 7; 6, 7), at an angle, by means of corner connectors (14), such as in particular a metal square.
  5. Device according to one of claims 3 or 4 wherein said structure (3; 4) comprises a bottom wall (30; 40) and wherein the base of said first portion of length (11) is fastened to said bottom wall (30; 40).
  6. Device according to claim 5, wherein said bottom wall (30; 40) takes the form of a plate and wherein said base of said first portion of length (11) of the section of the profile comprises a shoulder (15) with a dimension equal to the thickness of said bottom wall (30; 40), said bottom wall (30; 40) being received in said shoulder (15), in the nearest interlocking point.
  7. Device according to claim 5 or 6 comprising at least one reinforcement blade (16), elbowed, connecting said bottom wall (30; 40) to said profile (10) of the structure (3; 4).
  8. Device according to one of claims 2 to 7, wherein said profile (10) comprises a hinged portion (17), longitudinal, inside of which is articulated a cover (18), in particular made of extruded aluminium, said cover (18) being able to pass from an open position authorising access to said spring elements (8) to a closed position wherein said cover (18) covers said spring elements (8) which are then housed in an intermediate volume between said profile (10) and said cover (18).
  9. Device according to one of claims 3 to 8 wherein said housing results from the assembly of at least two structures (3, 4) placed end to end, with two flanks (5, 6) of one of the structures (3) respectively extending two flanks (5, 6) of the other structure (4), said four flanks comprised by said profiles (10) being mutually coupled, two by two, by means of sleeves (19) each fitted into the nearest interlocking point in the tubular portions of two profiles (10) belonging respectively to said at least two structures (3, 4).
  10. Device according to one of claims 1 to 9, wherein each spring element (8) is a helicoidal traction spring (80) terminated at its two ends by two hooks (81, 82), with the two hooks (81, 82) at the ends of the spring (80) being directed according to two opposite directions.
  11. Method for the tensioning of a canvas of a display device (1) according to one of claims 1 to 10, wherein:
    - the canvas (2) is tensioned to a first tension value by hooking each spring element (8) at one of its ends to said canvas (2) and at the other end to one (51; 61; 71) of the two hooking wings,
    - the canvas (2) is tensioned to a second tension value, greater that said first value, by hooking the other end onto the other (52; 62; 72) of the two hooking wings.
EP20130155669 2012-02-21 2013-02-18 Stretched-fabric display device Not-in-force EP2631897B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1251563A FR2987159B1 (en) 2012-02-21 2012-02-21 TENDUABLE CANVAS DISPLAY DEVICE

Publications (2)

Publication Number Publication Date
EP2631897A1 EP2631897A1 (en) 2013-08-28
EP2631897B1 true EP2631897B1 (en) 2014-07-16

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ID=47710053

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Application Number Title Priority Date Filing Date
EP20130155669 Not-in-force EP2631897B1 (en) 2012-02-21 2013-02-18 Stretched-fabric display device

Country Status (2)

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EP (1) EP2631897B1 (en)
FR (1) FR2987159B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114642310A (en) * 2020-12-18 2022-06-21 湖南登科材料科技有限公司 Anti-skid tabletop made of straw and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840964B1 (en) * 2002-06-14 2005-09-23 Isermatic Systemes PROFILE FOR FIXING A TENDUED CANVAS
US20090019749A1 (en) * 2007-07-18 2009-01-22 Fowler Tully W Tension device for attaching a flexible covering to a sign frame

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Publication number Publication date
EP2631897A1 (en) 2013-08-28
FR2987159B1 (en) 2014-03-07
FR2987159A1 (en) 2013-08-23

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