WO2003083812A2 - Display device comprising a piece of fabric stretched over a frame - Google Patents

Display device comprising a piece of fabric stretched over a frame Download PDF

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Publication number
WO2003083812A2
WO2003083812A2 PCT/FR2003/000890 FR0300890W WO03083812A2 WO 2003083812 A2 WO2003083812 A2 WO 2003083812A2 FR 0300890 W FR0300890 W FR 0300890W WO 03083812 A2 WO03083812 A2 WO 03083812A2
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WO
WIPO (PCT)
Prior art keywords
fabric
profile
tensioning
cooperating
display device
Prior art date
Application number
PCT/FR2003/000890
Other languages
French (fr)
Other versions
WO2003083812A3 (en
Inventor
Eric Bihr
Anders Janson
Original Assignee
Prismaflex International
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 Prismaflex International filed Critical Prismaflex International
Priority to AU2003244699A priority Critical patent/AU2003244699A1/en
Publication of WO2003083812A2 publication Critical patent/WO2003083812A2/en
Publication of WO2003083812A3 publication Critical patent/WO2003083812A3/en

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • 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
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • G09F21/048—Advertisement panels on sides, front or back of vehicles

Definitions

  • the invention relates to the field of display, and more specifically to display using supports made of stretched canvas, made for example of fabric coated with a plastic material such as PNC, or with a plastic film. .
  • the invention relates more particularly to a display system whose mechanism for tensioning the fabric is easy to implement in multiple applications, while being particularly adaptable to the geometric tolerances of the fabric and of the structure receiving the mechanism hanging the canvas.
  • the invention finds very particular applications in the field of advertising packaging for trucks having rigid walls.
  • the invention can also be declined in various types of applications requiring a display of a stretched canvas, whether on fixed or mobile structures, exposed or not to outside weathering.
  • the invention will be described more particularly in the application to the advertising cladding of truck walls, without this constituting a limitation of the scope of the invention.
  • the walls of trucks constitute relatively large spaces, and which therefore form predestined surfaces to accommodate advertising display media, more generally informative.
  • truck walls as advertising space remains limited, since it is subject to various constraints or obligations. Thus, it is frequently admitted that for an advertising message to have all its attractive force, it must be replaced frequently, at the rate of advertising campaigns. There is therefore a need to be able to interchange the display supports that can be placed on the walls of a truck, and this in contrast to solutions in which the advertising messages are directly painted, and therefore almost - definitive on the walls of a truck.
  • Another problem which the invention seeks to solve is that of providing a system which is easy to implement, while being particularly resistant to the stresses which can be observed when the display media are subjected to external conditions, and especially the forces exerted by the wind.
  • the invention therefore relates to a display device which comprises on the one hand a stretched fabric fitted on at least two of its opposite sides with a lateral rod, and on the other hand a setting mechanism under tension of the fabric relative to a fixed structure, this tensioning mechanism cooperating with the rods on opposite sides of the fabric.
  • the tensioning mechanism comprises a plurality of sections cooperating with each other as well as with the fixed structure or the fabric.
  • the mechanism is characterized in that it also comprises a plurality of separate tensioning members of short length.
  • the tensioning members cooperate on the one hand with one of the sections secured to the fabric and on the other hand with one of the sections secured to the fixed structure. They are distributed over the entire length of the fabric so as to allow the appropriate fabric to be tensioned at each of their locations.
  • the tensioning members of the fabric make it possible to carry out a suitable tensioning, that is to say a tensioning of the cloth substantially equal over its entire length in the case where the support and / or the cloth have geometric irregularities. In this way, it is ensured that the canvas does not have an area where the tension is insufficient and this avoids any floating of the canvas which would be detrimental to the smooth running of the advertising campaign.
  • the profiles cooperating with the rod of the fabric can be the same on both sides of the fabric, both to cooperate with the profile ensuring the attachment of the first side, and the element ensuring the tensioning of the opposite side.
  • the use of the same profile naturally limits the number of different parts in the mechanism, thus simplifying its installation and production.
  • the profiles cooperating with the rods of the fabric are advantageously produced in the form of successive segments, of unit length less than the length of the side of the fabric on which they are placed. Thanks to this arrangement, it is relatively easy to set up these different profiles on the rod of the canvas by threading the groove of the profile on the rod, and by sliding this profile along the length of the side of the canvas.
  • the mechanism according to the invention can be used on all four sides of a display fabric, when it is necessary to keep the fabric under transverse tension in these two directions.
  • the canvas can have a rectangular or four-sided shape, but the device can also be declined for other shapes of polygonal type fabrics, preferably with an even number of sides, and opposite sides opposite from each other and parallel.
  • the tensioning members In practice, it will be preferable for the tensioning members to be placed at the junctions between the different segments of the profiles cooperating with the rods of the fabric. In other words, by this arrangement, the forces exerted on the profile receiving the rod of the fabric are exerted at each end of the segments, which ensures good stability of the assembly.
  • the tensioning members have several offset ribs allowing different hooking of the profile cooperating with the rod, so as to allow different intensities of tensioning.
  • the attachment of the profile associated with the fabric can be done at different levels from the tensioning members.
  • the tension exerted on the fabric can be adjusted by choosing the appropriate rib.
  • This system also makes it possible to compensate for variations in geometry due either to the making of the canvas or to the installation of the profiles on the fixed structure. It is thus possible to ensure an almost uniform tensioning over the entire length of the fabric, despite this type of defect.
  • the profile fixed to the structure may include several inclined ribs making it possible to arrange the first side of the fabric at different levels of the structure, so as to compensate for geometric deviations of the fabric and / or structure.
  • this plurality of hooking positions of the end for example upper of the fabric, makes it possible to correct production faults which go beyond the possibilities of compensation offered by the adjustment situated on the opposite side.
  • the mechanism may include means for locking the engagement of the profiles cooperating with the rod, with respect to the ribs located on the fixed profiles and / or on the tensioning members.
  • the attachment of the profile associated with the fabric is obtained effectively, by limiting the risks of unexpected detachment, by defining the shapes of zones cooperating with each other to ensure this attachment.
  • the mechanism may include means for locking the attachment of the pivoting ensuring the function of the tensioning member relative to the profiles fixed to the structure. This makes it possible in particular to prevent the tensioning member from becoming detached from its pivot point during manipulations for tensioning the fabric.
  • the mechanism on a first side of the fabric, can comprise a first profile, which is integral with the structure, and which can comprise at least one rib inclined towards the outside of the structure.
  • the mechanism may also comprise on this side of the fabric, a second profile, one end of which has a groove which is capable of trapping the rod located on the side of the fabric, and the other end of which cooperates by hooking with the rib located on the first profile.
  • the tensioning mechanism may include two additional profiles and the plurality of tensioning members.
  • the third profile is integral with the structure, and it includes a stop which is oriented towards the outside of the structure, so as to form a housing for a pivot point.
  • the system can also include a fourth profile, one end of which can have a groove capable of trapping the rod located on the opposite side of the fabric, and the other end of which has a zone forming a hook.
  • the mechanism also comprises a plurality of tensioning members.
  • Each tensioning member may have an end which cooperates with the stop of the third profile to allow the pivoting of each tensioning member relative to the structure.
  • Each tensioning member may also include at least one rib cooperating with the hook zone of the fourth profile.
  • each tensioning member may include locking means relative to the third profile in the position where the fabric is tensioned.
  • the tensioning mechanism combines the use of various profiles.
  • the fabric On one side of the fabric, which may for example be the upper side, the fabric is held in a profile comprising a drop tube. This profile is hung on the first profile integral with the structure to allow the maintenance of, for example, the upper end of the fabric.
  • the rod present on the fabric is also placed in a drop tube which cooperates with the tensioning members acting as a lever.
  • This fourth section can be hung on each tensioning member which can itself be pivoted relative to the third section fixed to the structure.
  • the pivoting of each tensioning member causes the displacement of the integral section of the edge of the fabric, and therefore the tensioning of the latter.
  • this tensioning mechanism is particularly advantageous, since it is produced only on the basis of profiled elements which can be obtained at competitive cost prices.
  • the use of separate tensioning members ensures tensioning of the fabric over the entire length of one side, which ensures excellent homogeneity of the tension applied to the fabric. , and therefore optimal flatness.
  • Figures 1 and 2 are two side views of a truck equipped with the display device according to the invention.
  • Figure 1 shows the wall of the truck fitted with different characteristic profiles, before fitting the fabric.
  • Figure 2 shows the wall of the truck when the canvas is in place.
  • Figures 3 to 6 are sections of the characteristic sections.
  • Figures 7 and 8 are detail side views showing the cooperation between the first and the second section on which the fabric is mounted, and this respectively at two stages of mounting operations.
  • Figures 9 and 10 are also detailed views of the cooperation of the third and fourth sections with a tensioning member, respectively before and after the tensioning of the fabric.
  • Figure 11 is a front view of a tensioning member.
  • FIG. 12 is a detail view of the lower part of the display device, illustrating the capacity for adjusting the tension of the poster.
  • the invention relates to a display device which can, for example but not limited to, be used to equip rigid walls of trucks.
  • the wall (1) of the truck is equipped with four lengths of profiles.
  • the wall (1) receives a profile element (2).
  • An element (3) made from the same profile is also arranged on a vertical side of the wall (1).
  • These elements (2, 3) are produced from the profile of a first type (also called first profile in the rest of the description).
  • the wall (1) is equipped with two elements (4, 5). These elements (4, 5) are made from another profile (also called third profile in the rest of the description).
  • These sections are of slightly different widths, since the elements (2 and 3) are intended to receive the attachment of the fabric, while the elements (4, 5) are intended to receive the tensioning and locking members.
  • the wall (1) is intended to receive the fabric (6) by means of different segments (7) produced from the same profile
  • FIGS. 3 to 6 The forms of an exemplary embodiment of the different profiles are illustrated in FIGS. 3 to 6.
  • This profile (10) comprises at its ends a flat zone (11, 12) by which it can be fixed on the wall (1) of the truck, more generally on the fixed structure.
  • the profile (10) has three identical curved ribs (13, 14, 15). Each of these ribs (13-15) therefore defines a housing (16) oriented upwards in the example illustrated, and therefore more generally towards the outside of the support structure.
  • This housing (16) has a bottom which is substantially cylindrical, to allow pivoting movements by rotation.
  • this profile (10) has a length of the order of ten centimeters.
  • This profile (10) is intended to receive the profile (20) as illustrated in FIG. 4.
  • This profile (20) has at one of its ends a groove (21) forming a drop tube, and having a slot ( 22) intended to receive the connecting portion (18) connecting the rod (8) to the fabric (6), as illustrated in FIG. 7.
  • the shape of the groove (21) and that of the rod (8) are determined to ensure good resistance to tearing, while facilitating the sliding of the rod (8) inside the groove (21) during the positioning operations.
  • the profile (20) comprises a zone (23) forming a hook, and comprising at its end a bulged zone (24), having a radius of curvature substantially identical to that of the housing (16) of the profile (10 ).
  • the curved area (23) is connected to the groove (21) by a substantially inclined connecting portion (25).
  • This portion (25) has on its face oriented on the side of the hook (23) a rib (26) defining between itself and the bulged part (24) a housing (27), of dimension substantially equivalent to that of the rib ( 14) of the profile (10).
  • the length of the rib (26), thus defining the depth of the housing (27) is chosen to prevent the risk of the profile (20) detaching from the profile (10).
  • the profile (20) illustrated in Figure 4 is that which equips the upper part of the fabric (6), but also the lower end of the fabric, on the opposite side. This profile (20) is therefore intended to cooperate with the tensioning members (9).
  • Each tensioning member (9) cooperates with the profile (30) (also called the third profile) illustrated in FIG. 5.
  • the profile (30) has a generally flat shape, and has an end (31) by which it can be fixed to the support structure. Another portion (32) of the flat area can also be used to form a second attachment point relative to the fixed structure.
  • this profile (30) comprises a rib (33) forming a stop, oriented towards the outside of the structure, and that is to say in the embodiment, downwards .
  • This rib forms a stop, and therefore defines a housing (34), also cylindrical in shape which can serve as a rotation zone by pivoting a part of each tensioning member (9).
  • the length of the rib (33), and more precisely the arc of a circle which it defines, is chosen to ensure a satisfactory abutment effect, and to avoid any risk of slipping of each tensioning member (9).
  • the profile (30) also comprises in its lower part, a zone (35) defining a slide inside which can be moved hooking means, and typically a cleat (36) associated with a screw (37).
  • the profile (30) is intended to receive in the housing (34) one end of each tensioning member (9) produced by cutting from the profile (50) illustrated in FIG. 6. More precisely, this portion of profile ( 50) comprises at one of its ends a bulged portion (51) typically of cylindrical shape, and of a diameter substantially equal to that of the housing (34) of the profile (30). Near the bulged area (51), the profile portion (50) has a rib (52), also in an arc, which defines a housing (53) around a portion from the periphery of the bulge (51). This housing (53) is intended to receive the rib (33) of the profile (30) when the pivoting movement is engaged. The width of the housing (53) is therefore defined to be substantially equal and slightly less than the thickness of the width (33).
  • the profile portion (50) has three ribs
  • Each of its ribs defines a housing (57) capable of accommodating the bulge (24) of the profile (20) illustrated in FIG. 4, and therefore having compatible diameters.
  • the profile portion (50) has a zone (58) offset from the central zone (59). This area (58) is intended to come to bear on the groove (35) of the profile (30). On its internal face, oriented towards the structure, this zone (58) has a rib (60) intended to serve as a stop against the upper face (38) of the groove (35).
  • the area (58) of the profile portion (50) can be pierced with different housings, and preferably with housings opening laterally, so as to receive the screws (37) arranged on the profile (30).
  • FIGS. 7 to 10 The positioning of the different profile elements with respect to each other with the tensioning members (9) is illustrated in FIGS. 7 to 10.
  • the fabric is placed by its upper end on the element (2) of the tensioning mechanism.
  • the fabric is first equipped with different profile elements (20) which are threaded through their groove (21) on the rod (8).
  • the profile segments (20) have a length of the order of 80 cm to 1 meter, so as to allow their easy handling and their sliding without difficulty around the rod (8).
  • the upper end of the fabric is equipped with profiles (20)
  • the latter are placed on the profile (10).
  • the bulge (24) is placed in the housing (16) of the profile (10).
  • the profile (20) is inclined at a sufficient angle, and typically greater than 60 ° relative to its final position. This is necessary so that the rib (14) penetrates inside the housing (27) formed in the profile (20).
  • the fabric (6) is therefore hooked by its upper end and can hang vertically, in the configuration illustrated in FIG. 8.
  • the second section (20) is hooked relative to the first section (10) at the intermediate rib (14), but this attachment could take place at the other ribs (13, 15) depending on the tolerances on the dimensions of the fabric and the positioning of the profile (10) relative to the structure.
  • each tensioning member (9) is carried out with an inclination of the latter relatively close to the vertical. Thereafter, each tensioning member (9) can be lifted to pivot relative to the bulge (51).
  • the profile (20) is therefore located near the ribs (54-56) of each tensioning member (9), and the bulge (24) can then be inserted into the housing (57) defined by one of the ribs (54-56).
  • the choice of the rib in which the profile (20) is to be placed is made according to the tension which it is desired to obtain on the canvas, or else to compensate for variations in the length of the latter, or else still positioning the profile (30) relative to the fixed structure. This situation is illustrated in FIG. 12, in which it is observed that the ends of the sections (20a), (20b) and (20c) are hung at different levels from the tensioning members (50a, 50b).
  • each tensioning member (9) is sufficiently raised and pivoted so that the rib (55) can penetrate inside the housing ( 27) defined between the bulge (24) and the rib (26) of the profile (20). Thereafter, it suffices for the operator to exert pressure on the zone (58) of each tensioning member (9) so that a force is exerted on the fabric by means of the profile (20) . This then leads to the situation illustrated in FIG. 10, in which the fabric (6) is under tension. The profile (20) is then locked in position relative to each tensioning member (9) thanks to the penetration of the rib (55) inside the housing (27).
  • each tensioning member (9) is of limited size, typically of the order of ten centimeters, it is possible to slide the screw (37) and the associated cleat (36) inside of the slide to engage it in the housing (63) provided for this purpose in the zone (58) of each tensioning member (9), as illustrated in FIG. 11.
  • other locking modes than those illustrated in the figures can be used, as long as they ensure firm and effective maintenance of the various sections with respect to each other, in particular in the case where the fabric is subjected to relatively large efforts, for example when exposed to wind.
  • the display device has multiple advantages, and in particular the fact that it can very easily adapt to variations in dimensions consecutive to the operations of making the canvas, since 'it allows adjustment of the tension of the fabric at different points distinct from the length of the fabric.
  • the fixing mechanism can adapt to different types of load-bearing structures, by being able to compensate for certain geometric defects, and in particular the phenomena of bending of load-bearing beams, or even variations in the dimensions of the load-bearing structure or in angles formed by the different sides of such a support structure.

Abstract

The invention relates to a display device comprising a stretched piece of fabric (6), at least two opposing sides thereof being provided with a lateral rod (8), and a mechanism for tensioning the fabric in relation to a fixed structure, said tensioning mechanism comprising several sections (10, 20, 30, 40) which co-operate with one another and with the fixed structure or the fabric (6). The invention is characterised in that it comprises several different short tensioning elements (9) which co-operate with one of the sections which is solidly connected to the fabric and one of the sections which is solidly connected to the fixed structure. Moreover, said tensioning elements (9) are distributed along the length of the fabric (6) in such a way as to enable the tensioning of the fabric (6) to be adapted to each of the locations thereof.

Description

DISPOSITIF DAFFICHAGE COMPORTANT UNE TOILE TENDUE SUR UN CADREDISPLAY DEVICE COMPRISING A FABRIC TENSIONED ON A FRAME
Domaine techniqueTechnical area
L'invention se rapporte au domaine de l'affichage, et plus précisément de l'affichage utilisant des supports réalisés en toile tendue, réalisée par exemple en tissu enduit d'un matériau plastique tel que du PNC, ou par un film en matière plastique.The invention relates to the field of display, and more specifically to display using supports made of stretched canvas, made for example of fabric coated with a plastic material such as PNC, or with a plastic film. .
L'invention concerne plus particulièrement un système d'affichage dont le mécanisme de mise sous tension de la toile est facile à mettre en œuvre dans de multiples applications, tout en étant particulièrement adaptable aux tolérances géométriques de la toile et de la structure recevant le mécanisme d'accrochage de la toile.The invention relates more particularly to a display system whose mechanism for tensioning the fabric is easy to implement in multiple applications, while being particularly adaptable to the geometric tolerances of the fabric and of the structure receiving the mechanism hanging the canvas.
L'invention trouve des applications toutes particulières dans le domaine de l'habillage publicitaire des camions comportant des parois rigides. L'invention peut également être déclinée dans divers types d'applications nécessitant un affichage d'une toile tendue, que ce soit sur des structures fixes ou mobiles, exposées ou non aux intempéries extérieures. Dans la suite de la description, l'invention sera décrite de façon plus particulière dans l'application à l'habillage publicitaire de parois de camions, sans que cela constitue une limitation de la portée de l'invention.The invention finds very particular applications in the field of advertising packaging for trucks having rigid walls. The invention can also be declined in various types of applications requiring a display of a stretched canvas, whether on fixed or mobile structures, exposed or not to outside weathering. In the following description, the invention will be described more particularly in the application to the advertising cladding of truck walls, without this constituting a limitation of the scope of the invention.
Techniques antérieuresPrevious techniques
De façon générale, les parois de camions constituent des espaces de relativement grandes dimensions, et qui forment donc des surfaces prédestinées pour accueillir des supports d'affichage publicitaire, plus généralement informatifs.In general, the walls of trucks constitute relatively large spaces, and which therefore form predestined surfaces to accommodate advertising display media, more generally informative.
Néanmoins, l'emploi des parois de camions en tant qu'espaces publicitaires reste limité, puisqu'il est soumis à différentes contraintes ou obligations. Ainsi, il est fréquemment admis que pour qu'un message publicitaire présente toute sa force attractive, il est nécessaire qu'il soit fréquemment remplacé, et ce au rythme des campagnes publicitaires. Le besoin se fait donc sentir de pouvoir interchanger les supports d'affichage susceptibles d'être mis en place sur les parois d'un camion, et ce par opposition aux solutions dans lesquelles les messages publicitaires sont directement peints, et ce donc de façon quasi-définitive sur les parois d'un camion.However, the use of truck walls as advertising space remains limited, since it is subject to various constraints or obligations. Thus, it is frequently admitted that for an advertising message to have all its attractive force, it must be replaced frequently, at the rate of advertising campaigns. There is therefore a need to be able to interchange the display supports that can be placed on the walls of a truck, and this in contrast to solutions in which the advertising messages are directly painted, and therefore almost - definitive on the walls of a truck.
Parmi les solutions permettant d'équiper les bâches de camion d'une toile susceptible de comporter un message publicitaire, le Demandeur exploite une solution technique décrite dans le document EP 0 294 301. Cette solution utilise un support d'affichage, qui peut par exemple être un tissu enduit qui est équipé sur deux ou quatre de ses côtés d'un jonc latéral formant un bourrelet. Ce bourrelet est mis en place à l'intérieur d'un mécanisme de mise sous tension formé de différents profilés emprisonnant le jonc périphérique de la toile. Bien qu'elle présente de multiples avantages, et qu'elle soit largement exploitée, cette solution présente des désavantages pour certaines applications, notamment dans l'application d'habillages publicitaires de parois de camions. En effet, les profilés utilisés dans cette solution antérieure sont de tailles relativement importantes, ce qui se traduit par un décalage entre la toile d'affichage et le support sur lequel sont mis en place les profilés. En outre, cette solution n'est pas parfaitement adaptée dans les cas de figure où le support recevant les profilés présentent des irrégularités géométriques.Among the solutions making it possible to equip the tarpaulins of a truck with a canvas capable of comprising an advertising message, the Applicant exploits a technical solution described in the document EP 0 294 301. This solution uses a display medium, which can for example be a coated fabric which is fitted on two or four of its sides with a lateral rod forming a bead. This bead is placed inside a tensioning mechanism formed by different profiles trapping the peripheral ring of the fabric. Although it has multiple advantages, and it is widely exploited, this solution has disadvantages for certain applications, in particular in the application of advertising cladding for truck walls. Indeed, the profiles used in this prior solution are of relatively large sizes, which results in a shift between the display fabric and the support on which the profiles are placed. In addition, this solution is not perfectly suited in cases where the support receiving the profiles have geometric irregularities.
On connaît également des dispositifs permettant de réaliser une mise sous tension uniforme sur toute la longueur de la toile. Un tel dispositif est en effet décrit dans le document WO 01 35382, et présente un intérêt en terme de rapidité de mise sous tension de la toile. Cependant, cette solution comporte un désavantage majeur car elle ne permet pas également de réaliser une mise sous tension adaptée dans le cas où, par exemple, le support recevant les profilés présentent des irrégularités géométriques Un problème que cherche à résoudre l'invention est de permettre la mise en place d'une toile tendue avec la possibilité de s'adapter à des configurations dans lesquelles le support sur lequel est mis en place le dispositif d'affichage présente des irrégularités géométriques. Un autre problème que cherche à résoudre l'invention est celui de permettre un affichage d'une excellente planéité, et ce malgré certaines tolérances existant sur les dimensions de la toile, ou encore sur sa capacité d'allongement lorsqu'elle est mise sous tension.Devices are also known which make it possible to produce uniform tensioning over the entire length of the fabric. Such a device is in fact described in document WO 01 35382, and is of interest in terms of speed of tensioning of the fabric. However, this solution has a major disadvantage because it does not also make it possible to carry out a suitable tensioning in the case where, for example, the support receiving the profiles has geometric irregularities. A problem that the invention seeks to solve is to allow the establishment of a stretched fabric with the possibility of adapting to configurations in which the support on which the display device is installed has geometric irregularities . Another problem that the invention seeks to solve is that of allowing display of excellent flatness, despite certain tolerances existing on the dimensions of the fabric, or even on its elongation capacity when it is under tension. .
Un autre problème que cherche à résoudre l'invention est celui de fournir un système qui soit facile à mettre en œuvre, tout en étant particulièrement résistant aux contraintes que l'on peut observer lorsque les supports d'affichage sont soumis aux conditions extérieures, et notamment aux forces exercées par le vent.Another problem which the invention seeks to solve is that of providing a system which is easy to implement, while being particularly resistant to the stresses which can be observed when the display media are subjected to external conditions, and especially the forces exerted by the wind.
Exposé de l'invention L'invention concerne donc un dispositif d'affichage qui comporte d'une part une toile tendue équipée sur au moins deux de ses côtés opposés d'un jonc latéral, et d'autre part d'un mécanisme de mise sous tension de la toile par rapport à une structure fixe, ce mécanisme de mise sous tension coopérant avec les joncs des côtés opposés de la toile.SUMMARY OF THE INVENTION The invention therefore relates to a display device which comprises on the one hand a stretched fabric fitted on at least two of its opposite sides with a lateral rod, and on the other hand a setting mechanism under tension of the fabric relative to a fixed structure, this tensioning mechanism cooperating with the rods on opposite sides of the fabric.
De façon connue, le mécanisme de mise sous tension comporte une pluralité de profilés coopérant entre eux ainsi qu'avec la structure fixe ou la toile.In known manner, the tensioning mechanism comprises a plurality of sections cooperating with each other as well as with the fixed structure or the fabric.
Conformément à l'invention, le mécanisme se caractérise en ce qu'il comporte également une pluralité d'organes de mise sous tension distincts de faible longueur.According to the invention, the mechanism is characterized in that it also comprises a plurality of separate tensioning members of short length.
Les organes de mise sous tension coopèrent d'une part avec un des profilés solidaires de la toile et d'autre part avec un des profilés solidaire de la structure fixe. Ils sont répartis sur toute la longueur de la toile de manière à permettre une mise sous tension de la toile adaptée au niveau de chacun de leurs emplacements. Autrement dit, les organes de mise sous tension de la toile permettent de réaliser une mise sous tension adaptée, c'est à dire une mise sous tension de la toile sensiblement égale sur toute sa longueur dans le cas où le support et/ou la toile présentent des irrégularités géométriques. De cette manière, on s'assure que la toile ne présente pas de zone ou la tension est insuffisante et l'on évite ainsi tout flottement de la toile qui serait néfaste au bon déroulement de la campagne publicitaire.The tensioning members cooperate on the one hand with one of the sections secured to the fabric and on the other hand with one of the sections secured to the fixed structure. They are distributed over the entire length of the fabric so as to allow the appropriate fabric to be tensioned at each of their locations. In other words, the tensioning members of the fabric make it possible to carry out a suitable tensioning, that is to say a tensioning of the cloth substantially equal over its entire length in the case where the support and / or the cloth have geometric irregularities. In this way, it is ensured that the canvas does not have an area where the tension is insufficient and this avoids any floating of the canvas which would be detrimental to the smooth running of the advertising campaign.
Avantageusement en pratique, les profilés coopérant avec le jonc de la toile peuvent être les mêmes des deux côtés de la toile, à la fois pour coopérer avec le profilé assurant l'accrochage du premier côté, et l'élément assurant la mise sous tension du côté opposé. L'emploi d'un même profilé limite bien entendu le nombre de pièces différentes dans le mécanisme en simplifiant donc sa mise en place et sa réalisation.Advantageously in practice, the profiles cooperating with the rod of the fabric can be the same on both sides of the fabric, both to cooperate with the profile ensuring the attachment of the first side, and the element ensuring the tensioning of the opposite side. The use of the same profile naturally limits the number of different parts in the mechanism, thus simplifying its installation and production.
En pratique, les profilés coopérant avec les joncs de la toile sont avantageusement réalisés sous forme de segments successifs, de longueur unitaire inférieure à la longueur du côté de la toile sur laquelle ils sont mis en place. Grâce à cette disposition, il est relativement aisé de mettre en place ces différents profilés sur le jonc de la toile en enfilant la gorge du profilé sur le jonc, et en faisant coulisser ce profilé sur la longueur du côté de la toile.In practice, the profiles cooperating with the rods of the fabric are advantageously produced in the form of successive segments, of unit length less than the length of the side of the fabric on which they are placed. Thanks to this arrangement, it is relatively easy to set up these different profiles on the rod of the canvas by threading the groove of the profile on the rod, and by sliding this profile along the length of the side of the canvas.
Toutefois, dans certaines applications dans lesquelles la toile est de relativement faible longueur, un unique segment de profilé peut être utilisé pour couvrir la longueur de la toile. Dans le même ordre d'idée, le mécanisme conformément à l'invention peut être utilisé sur les quatre côtés d'une toile d'affichage, lorsqu'il est nécessaire de maintenir la toile sous tension transversale dans ces deux directions. Néanmoins, lorsque les dimensions et les applications le permettent, il peut être suffisant de ne maintenir que deux côtés opposés de la toile. De la même manière, la toile peut présenter une forme rectangulaire ou à quatre côtés, mais le dispositif peut également se décliner pour d'autres formes de toiles de type polygonales, avec de préférence un nombre de côtés pairs, et des côtés opposés en regard les uns des autres et parallèles.However, in certain applications in which the fabric is relatively short, a single section segment can be used to cover the length of the fabric. Similarly, the mechanism according to the invention can be used on all four sides of a display fabric, when it is necessary to keep the fabric under transverse tension in these two directions. However, when the dimensions and the applications allow it, it may be sufficient to maintain only two opposite sides of the fabric. In the same way, the canvas can have a rectangular or four-sided shape, but the device can also be declined for other shapes of polygonal type fabrics, preferably with an even number of sides, and opposite sides opposite from each other and parallel.
En pratique, on préférera que les organes de mise sous tension soient mis en place au niveau des jonctions entre les différents segments des profilés coopérant avec les joncs de la toile. Autrement dit, par cette disposition, les efforts exercés sur le profilé recevant le jonc de la toile sont exercés au niveau de chaque extrémité des segments, ce qui assure une bonne stabilité de l'ensemble.In practice, it will be preferable for the tensioning members to be placed at the junctions between the different segments of the profiles cooperating with the rods of the fabric. In other words, by this arrangement, the forces exerted on the profile receiving the rod of the fabric are exerted at each end of the segments, which ensures good stability of the assembly.
Conformément à une caractéristique de l'invention, les organes de mise sous tension, possèdent plusieurs nervures décalées permettant des accrochages différents du profilé coopérant avec le jonc, de manière à autoriser différentes intensités de mise sous tension. Autrement dit, l'accrochage du profilé associé à la toile peut se faire à des niveaux différents de des organes de mise sous tension. De la sorte, la tension exercée sur la toile peut être réglée en choisissant la nervure appropriée. Ce système permet également de compenser les variations de géométrie dues soit à la confection de la toile, soit à la pose des profilés sur la structure fixe. Il est ainsi possible d'assurer une mise sous tension quasi uniforme sur toute la longueur de la toile, malgré ce type de défaut. Par ailleurs, selon une autre caractéristique de l'invention, le profilé fixé à la structure peut comporter plusieurs nervures inclinées permettant de disposer le premier côté de la toile à des niveaux différents de la structure, de manière à compenser des écarts géométriques de la toile et/ou de la structure. De la même manière, cette pluralité de positions d'accrochage de l'extrémité, par exemple supérieure de la toile, permet de corriger des défauts de réalisation qui vont au-delà des possibilités de compensation offertes par le réglage situé sur le côté opposé.According to a characteristic of the invention, the tensioning members have several offset ribs allowing different hooking of the profile cooperating with the rod, so as to allow different intensities of tensioning. In other words, the attachment of the profile associated with the fabric can be done at different levels from the tensioning members. In this way, the tension exerted on the fabric can be adjusted by choosing the appropriate rib. This system also makes it possible to compensate for variations in geometry due either to the making of the canvas or to the installation of the profiles on the fixed structure. It is thus possible to ensure an almost uniform tensioning over the entire length of the fabric, despite this type of defect. Furthermore, according to another characteristic of the invention, the profile fixed to the structure may include several inclined ribs making it possible to arrange the first side of the fabric at different levels of the structure, so as to compensate for geometric deviations of the fabric and / or structure. In the same way, this plurality of hooking positions of the end, for example upper of the fabric, makes it possible to correct production faults which go beyond the possibilities of compensation offered by the adjustment situated on the opposite side.
Avantageusement en pratique, le mécanisme peut comporter des moyens de verrouillage de l'enclenchement des profilés coopérant avec le jonc, vis-à-vis des nervures situées sur les profilés fixes et/ou sur les organes de mise sous tension. Autrement dit, l'accrochage du profilé associé à la toile est obtenu de manière efficace, en limitant les risques de détachement inopinés, en définissant les formes de zones coopérant entre elles pour assurer cet accrochage.Advantageously in practice, the mechanism may include means for locking the engagement of the profiles cooperating with the rod, with respect to the ribs located on the fixed profiles and / or on the tensioning members. In other words, the attachment of the profile associated with the fabric is obtained effectively, by limiting the risks of unexpected detachment, by defining the shapes of zones cooperating with each other to ensure this attachment.
Dans le même esprit, le mécanisme peut comporter des moyens de verrouillage de l'accrochage du pivotement assurant la fonction de l'organe de mise sous tension par rapport aux profilés fixés sur la structure. Cela permet notamment d'éviter que l'organe de mise sous tension ne se désolidarise de son point de pivotement lors des manipulations de mise sous tension de la toile.In the same spirit, the mechanism may include means for locking the attachment of the pivoting ensuring the function of the tensioning member relative to the profiles fixed to the structure. This makes it possible in particular to prevent the tensioning member from becoming detached from its pivot point during manipulations for tensioning the fabric.
Selon un mode de réalisation, sur un premier côté de la toile, le mécanisme peut comporter un premier profilé, qui est solidaire de la structure, et qui peut comporter au moins une nervure inclinée vers l'extérieur de la structure. Le mécanisme peut comprendre également de ce côté de la toile, un second profilé, dont une extrémité comporte une gorge qui est apte à emprisonner le jonc situé sur le côté de la toile, et dont l'autre extrémité coopère par accrochage avec la nervure située sur le premier profilé. Sur le côté opposé de la toile, le mécanisme de mise sous tension peut comprendre deux profilés supplémentaires et la pluralité d'organes de mise sous tension. Le troisième profilé est solidaire de la structure, et il comporte une butée qui est orientée vers l'extérieur de la structure, de manière à former un logement pour un point de pivotement. Le système peut comprendre également un quatrième profilé dont une extrémité peut comporter une gorge apte à emprisonner le jonc situé sur le côté opposé de la toile, et dont l'autre extrémité comporte une zone formant crochet.According to one embodiment, on a first side of the fabric, the mechanism can comprise a first profile, which is integral with the structure, and which can comprise at least one rib inclined towards the outside of the structure. The mechanism may also comprise on this side of the fabric, a second profile, one end of which has a groove which is capable of trapping the rod located on the side of the fabric, and the other end of which cooperates by hooking with the rib located on the first profile. On the opposite side of the fabric, the tensioning mechanism may include two additional profiles and the plurality of tensioning members. The third profile is integral with the structure, and it includes a stop which is oriented towards the outside of the structure, so as to form a housing for a pivot point. The system can also include a fourth profile, one end of which can have a groove capable of trapping the rod located on the opposite side of the fabric, and the other end of which has a zone forming a hook.
, Conformément à l'invention, le mécanisme comprend également une pluralité d'organes de mise sous tension. Chaque organe de mise sous tension peut présenter une extrémité qui Coopère avec la butée du troisième profilé pour autoriser le pivotement de chaque organe de mise sous tension par rapport à la structure. Chaque organe de mise sous tension peut comporter également au moins une nervure coopérant avec la zone formant crochet du quatrième profilé. Enfin, chaque organe de mise sous tension peut comporter des moyens de verrouillage par rapport au troisième profilé dans la position où la toile est mise sous tension.According to the invention, the mechanism also comprises a plurality of tensioning members. Each tensioning member may have an end which cooperates with the stop of the third profile to allow the pivoting of each tensioning member relative to the structure. Each tensioning member may also include at least one rib cooperating with the hook zone of the fourth profile. Finally, each tensioning member may include locking means relative to the third profile in the position where the fabric is tensioned.
Autrement dit, le mécanisme de mise sous tension combine l'utilisation de divers profilés. Sur un côté de la toile, qui peut être par exemple le côté supérieur, la toile est maintenue dans un profilé comportant un tube à goutte. Ce profilé est accroché sur le premier profilé solidaire de la structure pour permettre le maintien de, par exemple, l'extrémité haute de la toile.In other words, the tensioning mechanism combines the use of various profiles. On one side of the fabric, which may for example be the upper side, the fabric is held in a profile comprising a drop tube. This profile is hung on the first profile integral with the structure to allow the maintenance of, for example, the upper end of the fabric.
Du côté opposé, et par exemple au niveau de l'extrémité basse de la toile, le jonc présent sur la toile est également mis en place dans un tube à goutte qui coopère avec les organes de mise sous tension jouant le rôle de levier. Ce quatrième profilé peut être accroché sur chaque organe de mise sous tension qui peut lui-même être pivoté par rapport au troisième profilé fixé sur la structure. Le pivotement de chaque organe de mise sous tension entraîne le déplacement du profilé solidaire de la lisière de la toile, et donc la mise sous tension de cette dernière. On conçoit que ce mécanisme de mise sous tension est particulièrement avantageux, puisqu'il n'est réalisé qu'à base d'éléments profilés qui peuvent être obtenus à des prix de revient compétitifs. En outre, l'emploi d'organes de mise sous tension distincts permet d'assurer une mise sous tension de la toile sur l'intégralité de la longueur d'un côté, ce qui assure une excellente homogénéité de la tension appliquée à la toile, et donc une planéité optimale.On the opposite side, and for example at the lower end of the fabric, the rod present on the fabric is also placed in a drop tube which cooperates with the tensioning members acting as a lever. This fourth section can be hung on each tensioning member which can itself be pivoted relative to the third section fixed to the structure. The pivoting of each tensioning member causes the displacement of the integral section of the edge of the fabric, and therefore the tensioning of the latter. It is understood that this tensioning mechanism is particularly advantageous, since it is produced only on the basis of profiled elements which can be obtained at competitive cost prices. In addition, the use of separate tensioning members ensures tensioning of the fabric over the entire length of one side, which ensures excellent homogeneity of the tension applied to the fabric. , and therefore optimal flatness.
Description sommaire des figures La manière de réaliser l'invention ainsi que les avantages qui en découlent ressortiront bien de la description du mode de réalisation qui suit, à l'appui des figures annexées dans lesquelles :Brief description of the figures The manner of carrying out the invention as well as the advantages which result therefrom will emerge clearly from the description of the embodiment which follows, in support of the appended figures in which:
Les figures 1 et 2 sont deux vues de côté d'un camion équipé du dispositif d'affichage conformément à l'invention. La figure 1 montre la paroi du camion équipée de différents profilés caractéristiques, avant mise en place de la toile.Figures 1 and 2 are two side views of a truck equipped with the display device according to the invention. Figure 1 shows the wall of the truck fitted with different characteristic profiles, before fitting the fabric.
La figure 2 montre la paroi du camion lorsque la toile est mise en place. Les figures 3 à 6 sont des sections des profilés caractéristiques. Les figures 7 et 8 sont des vues de côté de détail montrant la coopération entre le premier et le second profilé sur lequel est montée la toile, et ce respectivement à deux stades des opérations de montage.Figure 2 shows the wall of the truck when the canvas is in place. Figures 3 to 6 are sections of the characteristic sections. Figures 7 and 8 are detail side views showing the cooperation between the first and the second section on which the fabric is mounted, and this respectively at two stages of mounting operations.
Les figures 9 et 10 sont également des vues de détail de la coopération des troisième, et quatrième profilés avec un organe de mise sous tension, respectivement avant et après la mise sous tension de la toile. La figure 11 est une vue de face d'un organe de mise sous tension.Figures 9 and 10 are also detailed views of the cooperation of the third and fourth sections with a tensioning member, respectively before and after the tensioning of the fabric. Figure 11 is a front view of a tensioning member.
La figure 12 est une vue de détail de la partie basse du dispositif d'affichage, illustrant la capacité de réglage de la tension de l'affiche.FIG. 12 is a detail view of the lower part of the display device, illustrating the capacity for adjusting the tension of the poster.
Manière de réaliser l'invention Comme déjà évoqué, l'invention concerne un dispositif d'affichage qui peut, par exemple mais non limitativement, être utilisé pour équiper des parois rigides de camions. Ainsi, comme illustré à la figure 1, la paroi (1) du camion est équipée de quatre longueurs de profilés. Sur le côté supérieur, la paroi (1) reçoit un élément de profilé (2). Un élément (3) réalisé à partir du même profilé est également disposé sur un côté vertical de la paroi (1). Ces éléments (2, 3) sont réalisés à partir du profilé d'un premier type (également appelé premier profilé dans le reste de la description). Sur les côtés opposés, la paroi (1) est équipée de deux éléments (4, 5). Ces éléments (4, 5) sont réalisés à partir d'un autre profilé (également appelé troisième profilé dans le reste de la description). Ces profilés sont de largeurs légèrement différentes, puisque les éléments (2 et 3) sont destinés à recevoir l'accrochage de la toile, tandis que les éléments (4, 5) sont destinés à recevoir les organes de mise sous tension et de verrouillage.Way of realizing the invention As already mentioned, the invention relates to a display device which can, for example but not limited to, be used to equip rigid walls of trucks. Thus, as illustrated in FIG. 1, the wall (1) of the truck is equipped with four lengths of profiles. On the upper side, the wall (1) receives a profile element (2). An element (3) made from the same profile is also arranged on a vertical side of the wall (1). These elements (2, 3) are produced from the profile of a first type (also called first profile in the rest of the description). On the opposite sides, the wall (1) is equipped with two elements (4, 5). These elements (4, 5) are made from another profile (also called third profile in the rest of the description). These sections are of slightly different widths, since the elements (2 and 3) are intended to receive the attachment of the fabric, while the elements (4, 5) are intended to receive the tensioning and locking members.
Comme illustré à la figure 2, la paroi (1) est destinée à recevoir la toile (6) par l'intemiédiaire de différents segments (7) réalisés à partir d'un même profiléAs illustrated in FIG. 2, the wall (1) is intended to receive the fabric (6) by means of different segments (7) produced from the same profile
(également appelé deuxième ou quatrième profilé dans le reste de la description), et qui coopère avec le jonc (8) présent sur la périphérie de la toile (6). Ces segments (7) du second profilé sont accrochés sur des nervures présentent sur les éléments (2 et 3) du premier profilé. Sur les côtés opposés, les éléments (7) sont maintenus par rapport aux éléments (4 et 5) du troisième profilé par l'intermédiaire d'organes de mise sous tension (8), répartis sur la longueur de la toile, et eux-mêmes fixés sur les éléments (4, 5) du troisième profilé. Des organe de mise sous tension (9) régulièrement espacés peuvent être réalisés à partir de portions d'un profilé (50) tel que décrit en coupe en figure 6.(also called second or fourth profile in the rest of the description), and which cooperates with the rod (8) present on the periphery of the fabric (6). These segments (7) of the second profile are hung on ribs present on the elements (2 and 3) of the first profile. On the opposite sides, the elements (7) are held relative to the elements (4 and 5) of the third profile by means of tensioning members (8), distributed over the length of the fabric, and them- same fixed on the elements (4, 5) of the third profile. Evenly spaced tensioning members (9) can be produced from portions of a profile (50) as described in section in FIG. 6.
Les formes d'un exemple de réalisation des différents profilés sont illustrées aux figures 3 à 6. Le premier profilé (10), permettant 'de réaliser les éléments (2 et 3) de la figure, est illustré à la figure 3. Ce profilé (10) comporte à ses extrémités une zone plate (11, 12) par laquelle il peut être fixé sur la paroi (1) du camion, plus généralement sur la structure fixe. Dans sa zone centrale, le profilé (10) comporte trois nervures incurvées identiques (13, 14, 15). Chacune de ces nervures (13-15) définit donc un logement (16) orienté vers le haut dans l'exemple illustré, et donc plus généralement vers l'extérieur de la structure porteuse. Ce logement (16) présente un fond qui est sensiblement cylindrique, pour autoriser des mouvements de pivotement par rotation. Typiquement, ce profilé (10) possède une longueur de l'ordre de la dizaine de centimètres. Ce profilé (10) est destiné à recevoir le profilé (20) tel qu'illustré à la figure 4. Ce profilé (20) comporte à une de ses extrémités une gorge (21) formant un tube à goutte, et présentant une fente (22) destinée à recevoir la portion de liaison (18) reliant le jonc (8) à la toile (6), tel qu'illustré à la figure 7. La forme de la gorge (21) et celle du jonc (8) sont déterminées pour assurer une bonne résistance à l'arrachement, tout en facilitant le coulissement du jonc (8) à l'intérieur de la gorge (21) lors des opérations de mise en place.The forms of an exemplary embodiment of the different profiles are illustrated in FIGS. 3 to 6. The first section (10), allowing 'to carry the elements (2 and 3) of the figure, is illustrated in Figure 3. This profile (10) comprises at its ends a flat zone (11, 12) by which it can be fixed on the wall (1) of the truck, more generally on the fixed structure. In its central area, the profile (10) has three identical curved ribs (13, 14, 15). Each of these ribs (13-15) therefore defines a housing (16) oriented upwards in the example illustrated, and therefore more generally towards the outside of the support structure. This housing (16) has a bottom which is substantially cylindrical, to allow pivoting movements by rotation. Typically, this profile (10) has a length of the order of ten centimeters. This profile (10) is intended to receive the profile (20) as illustrated in FIG. 4. This profile (20) has at one of its ends a groove (21) forming a drop tube, and having a slot ( 22) intended to receive the connecting portion (18) connecting the rod (8) to the fabric (6), as illustrated in FIG. 7. The shape of the groove (21) and that of the rod (8) are determined to ensure good resistance to tearing, while facilitating the sliding of the rod (8) inside the groove (21) during the positioning operations.
A l'extrémité opposée, le profilé (20) comporte une zone (23) formant crochet, et comportant à son extrémité une zone renflée (24), possédant un rayon de courbure sensiblement identique à celui du logement (16) du profilé (10). La zone recourbée (23) est reliée à la gorge (21) par une portion de liaison sensiblement inclinée (25). Cette portion (25) comporte sur sa face orientée du côté du crochet (23) une nervure (26) définissant entre elle-même et la partie renflée (24) un logement (27), de dimension sensiblement équivalente à celle de la nervure (14) du profilé (10).At the opposite end, the profile (20) comprises a zone (23) forming a hook, and comprising at its end a bulged zone (24), having a radius of curvature substantially identical to that of the housing (16) of the profile (10 ). The curved area (23) is connected to the groove (21) by a substantially inclined connecting portion (25). This portion (25) has on its face oriented on the side of the hook (23) a rib (26) defining between itself and the bulged part (24) a housing (27), of dimension substantially equivalent to that of the rib ( 14) of the profile (10).
La longueur de la nervure (26), définissant donc la profondeur du logement (27) est choisie pour empêcher les risques de décrochement du profilé (20) par rapport au profilé (10). Le profilé (20) illustrée à la figure 4, est celui qui équipe la partie supérieure de la toile (6), mais également l'extrémité inférieure de la toile, du côté opposé. Ce profilé (20) est donc destiné à coopérer avec les organes de mise sous tension (9).The length of the rib (26), thus defining the depth of the housing (27) is chosen to prevent the risk of the profile (20) detaching from the profile (10). The profile (20) illustrated in Figure 4, is that which equips the upper part of the fabric (6), but also the lower end of the fabric, on the opposite side. This profile (20) is therefore intended to cooperate with the tensioning members (9).
Chaque organe de mise sous tension (9) coopère quant à lui avec le profilé (30) (également appelé troisième profilé) illustré à la figure 5.Each tensioning member (9) cooperates with the profile (30) (also called the third profile) illustrated in FIG. 5.
Plus précisément, le profilé (30) présente une forme générale plate, et comporte une extrémité (31) par laquelle il peut être fixé sur la structure porteuse. Une autre portion (32) de la zone plate peut également être utilisée pour former un deuxième point de fixation par rapport à la structure fixe.More specifically, the profile (30) has a generally flat shape, and has an end (31) by which it can be fixed to the support structure. Another portion (32) of the flat area can also be used to form a second attachment point relative to the fixed structure.
Selon une autre caractéristique de l'invention, ce profilé (30) comporte une nervure (33) formant butée, orientée vers l'extérieur de la structure, et c'est-à-dire dans l'exemple de réalisation, vers le bas. Cette nervure forme une butée, et définit donc un logement (34), de forme également cylindrique pouvant servir de zone de rotation par pivotement d'une partie de chaque organe de mise sous tension (9). La longueur de la nervure (33), et plus précisément l'arc de cercle qu'elle définit est choisi pour assurer un effet de butée satisfaisant, et pour éviter tout risque de ripage de chaque organe de mise sous tension (9).According to another characteristic of the invention, this profile (30) comprises a rib (33) forming a stop, oriented towards the outside of the structure, and that is to say in the embodiment, downwards . This rib forms a stop, and therefore defines a housing (34), also cylindrical in shape which can serve as a rotation zone by pivoting a part of each tensioning member (9). The length of the rib (33), and more precisely the arc of a circle which it defines, is chosen to ensure a satisfactory abutment effect, and to avoid any risk of slipping of each tensioning member (9).
Dans la forme illustrée, le profilé (30) comporte également dans sa partie basse, une zone (35) définissant une glissière à l'intérieur de laquelle peuvent être déplacés des moyens d'accrochage, et typiquement un taquet (36) associé à une vis (37).In the illustrated form, the profile (30) also comprises in its lower part, a zone (35) defining a slide inside which can be moved hooking means, and typically a cleat (36) associated with a screw (37).
Le profilé (30) est destiné à recevoir dans le logement (34) une extrémité de chaque organe de mise sous tension (9) réalisé par découpe dans le profilé (50) illustré à la figure 6. Plus précisément, cette portion de profilé (50) comporte à une de ses extrémités une portion renflée (51) typiquement de forme cylindrique, et d'un diamètre sensiblement égal à celui du logement (34) du profilé (30). A proximité de la zone renflée (51), la portion de profilé (50) comporte une nervure (52), également en arc de cercle, qui définit un logement (53) autour d'une portion de la périphérie du renflement (51). Ce logement (53) est destiné à accueillir la nervure (33) du profilé (30) lorsque le mouvement de pivotement est enclenché. La largeur du logement (53) est donc définie pour être sensiblement égale et légèrement inférieure à l'épaisseur de la largeur (33).The profile (30) is intended to receive in the housing (34) one end of each tensioning member (9) produced by cutting from the profile (50) illustrated in FIG. 6. More precisely, this portion of profile ( 50) comprises at one of its ends a bulged portion (51) typically of cylindrical shape, and of a diameter substantially equal to that of the housing (34) of the profile (30). Near the bulged area (51), the profile portion (50) has a rib (52), also in an arc, which defines a housing (53) around a portion from the periphery of the bulge (51). This housing (53) is intended to receive the rib (33) of the profile (30) when the pivoting movement is engaged. The width of the housing (53) is therefore defined to be substantially equal and slightly less than the thickness of the width (33).
Dans sa portion médiane, la portion de profilé (50) comporte trois nervuresIn its middle portion, the profile portion (50) has three ribs
(54, 55, 56) orientées vers l'extérieur de la structure, et épousant une forme générale cylindrique. Chacune de ses nervures définit un logement (57) apte à accueillir le renflement (24) du profilé (20) illustré à la figure 4, et possédant donc des diamètres compatibles.(54, 55, 56) oriented towards the outside of the structure, and having a generally cylindrical shape. Each of its ribs defines a housing (57) capable of accommodating the bulge (24) of the profile (20) illustrated in FIG. 4, and therefore having compatible diameters.
A son extrémité opposée au renflement (51), la portion de profilé (50) possède une zone (58) décalée par rapport à la zone centrale (59). Cette zone (58) est destinée à venir en appui sur la gorge (35) du profilé (30). Sur sa face interne, orientée vers la stmcture, cette zone (58) possède une nervure (60) destinée à servir de butée contre la face supérieure (38) de la gorge (35). La zone (58) de la portion de profilé (50) peut être percée de différents logements, et préférentiellement de logements débouchant latéralement, de manière à accueillir les vis (37) disposées sur le profilé (30).At its end opposite the bulge (51), the profile portion (50) has a zone (58) offset from the central zone (59). This area (58) is intended to come to bear on the groove (35) of the profile (30). On its internal face, oriented towards the structure, this zone (58) has a rib (60) intended to serve as a stop against the upper face (38) of the groove (35). The area (58) of the profile portion (50) can be pierced with different housings, and preferably with housings opening laterally, so as to receive the screws (37) arranged on the profile (30).
La mise en place des différents éléments de profilés les uns par rapport aux autres avec les organes de mise sous tension (9) est illustrée aux figures 7 à 10.The positioning of the different profile elements with respect to each other with the tensioning members (9) is illustrated in FIGS. 7 to 10.
Ainsi, dans une première étape, la toile est mise en place par son extrémité supérieure sur l'élément (2) du mécanisme de mise sous tension.Thus, in a first step, the fabric is placed by its upper end on the element (2) of the tensioning mechanism.
Comme illustré à la figure 7, la toile est tout d'abord équipée de différents éléments de profilé (20) qui sont enfilés par leur gorge (21) sur le jonc (8). Typiquement, les segments de profilé (20) ont une longueur de l'ordre de 80 cm à 1 mètre, de manière à permettre leur manipulation aisée et leur coulissement sans difficulté autour du jonc (8). Lorsque l'extrémité haute de la toile est équipée des profilés (20), ces derniers sont mis en place sur le profilé (10). Plus précisément, le renflement (24) est mis en place dans le logement (16) du profilé (10). Pour ce faire, il est nécessaire que le profilé (20) soit incliné d'un angle suffisant, et typiquement supérieur à 60° par rapport à sa position finale. Ceci est nécessaire pour que la nervure (14) pénètre à l'intérieur du logement (27) formé dans le profilé (20). Ceci permet notamment d'éviter tout risque d'arrachement lorsque la toile est mise en place, ou lors des manœuvres d'installation. Lorsque l'ensemble des profilés (20) est mis en place par rapport au profilé (10), la toile (6) est donc accrochée par son extrémité haute et peut pendre verticalement, dans la configuration illustrée à la figure 8. Dans l'exemple illustré, le second profilé (20) est accroché par rapport au premier profilé (10) au niveau de la nervure intermédiaire (14), mais cet accrochage pourrait avoir lieu au niveau des autres nervures (13, 15) en fonction des tolérances sur les dimensions de la toile et sur le positionnement du profilé (10) par rapport à la stmcture.As illustrated in Figure 7, the fabric is first equipped with different profile elements (20) which are threaded through their groove (21) on the rod (8). Typically, the profile segments (20) have a length of the order of 80 cm to 1 meter, so as to allow their easy handling and their sliding without difficulty around the rod (8). When the upper end of the fabric is equipped with profiles (20), the latter are placed on the profile (10). More specifically, the bulge (24) is placed in the housing (16) of the profile (10). To do this, it is necessary that the profile (20) is inclined at a sufficient angle, and typically greater than 60 ° relative to its final position. This is necessary so that the rib (14) penetrates inside the housing (27) formed in the profile (20). This notably makes it possible to avoid any risk of tearing off when the fabric is put in place, or during installation maneuvers. When the set of profiles (20) is put in place with respect to the profile (10), the fabric (6) is therefore hooked by its upper end and can hang vertically, in the configuration illustrated in FIG. 8. In the illustrated example, the second section (20) is hooked relative to the first section (10) at the intermediate rib (14), but this attachment could take place at the other ribs (13, 15) depending on the tolerances on the dimensions of the fabric and the positioning of the profile (10) relative to the structure.
Par la suite, l'opérateur effectue l'accrochage des extrémités . libres et leur mise sous tension, comme illustré aux figures 9 et 10.Subsequently, the operator hooks the ends. free and energizing them, as illustrated in Figures 9 and 10.
Ainsi, il est nécessaire d'équiper l'extrémité basse de la toile (6) de segments de profilé (20), en les faisant coulisser sur le jonc (8), de la même manière que cela a été réalisé pour l'extrémité haute. L'opérateur met ensuite en place les organes de mise sous tension (9) en position par rapport au profilé (30). Pour ce faire, il engage le renflement (51) de chaque organe de mise sous tension (9) à l'intérieur du logement (34) défini par la nervure (33). Compte-tenu de la présence de la nervure (52) de verrouillage, la mise en place de chaque organe de mise sous tension (9) s'effectue avec une inclinaison de ce dernier relativement proche de la verticale. Par la suite, chaque organe de mise sous tension (9) peut être soulevé pour pivoter par rapport au renflement (51). Le profilé (20) se trouve donc à proximité des nervures (54-56) de chaque organe de mise sous tension (9), et le renflement (24) peut alors être inséré dans le logement (57) défini par l'une des nervures (54-56). Le choix de la nervure dans laquelle doit être mis en place le profilé (20) s'effectue en fonction de la tension que l'on souhaite obtenir sur la toile, ou bien alors pour compenser des variations de longueur de cette dernière, ou bien encore de positionnement du profilé (30) par rapport à la structure fixe. Cette situation est illustrée à la figure 12, sur laquelle on observe que les extrémités des profilés (20a), (20b) et (20c) sont accrochées à des niveaux différents des organes de mise sous tension (50a, 50b).Thus, it is necessary to equip the lower end of the fabric (6) with profile segments (20), by sliding them on the rod (8), in the same way as that was done for the end. high. The operator then sets up the tensioning members (9) in position relative to the profile (30). To do this, it engages the bulge (51) of each tensioning member (9) inside the housing (34) defined by the rib (33). Given the presence of the locking rib (52), the positioning of each tensioning member (9) is carried out with an inclination of the latter relatively close to the vertical. Thereafter, each tensioning member (9) can be lifted to pivot relative to the bulge (51). The profile (20) is therefore located near the ribs (54-56) of each tensioning member (9), and the bulge (24) can then be inserted into the housing (57) defined by one of the ribs (54-56). The choice of the rib in which the profile (20) is to be placed is made according to the tension which it is desired to obtain on the canvas, or else to compensate for variations in the length of the latter, or else still positioning the profile (30) relative to the fixed structure. This situation is illustrated in FIG. 12, in which it is observed that the ends of the sections (20a), (20b) and (20c) are hung at different levels from the tensioning members (50a, 50b).
Pour que cet accrochage ait lieu, il est nécessaire, comme illustré à la figure 9, que chaque organe de mise sous tension (9), soit suffisamment relevé et pivoté pour que la nervure (55) puisse pénétrer à l'intérieur du logement (27) défini entre le renflement (24) et la nervure (26) du profilé (20). Par la suite, il suffit à l'opérateur d'exercer une pression sur la zone (58) de chaque organe de mise sous tension (9) pour qu'un effort soit exercé sur la toile par l'intermédiaire du profilé (20). On aboutit alors à la situation illustrée à la figure 10, dans laquelle la toile (6) est sous tension. Le profilé (20) est alors verrouillé en position par rapport à chaque organe de mise sous tension (9) grâce à la pénétration de la nervure (55) à l'intérieur du logement (27).For this attachment to take place, it is necessary, as illustrated in FIG. 9, that each tensioning member (9) is sufficiently raised and pivoted so that the rib (55) can penetrate inside the housing ( 27) defined between the bulge (24) and the rib (26) of the profile (20). Thereafter, it suffices for the operator to exert pressure on the zone (58) of each tensioning member (9) so that a force is exerted on the fabric by means of the profile (20) . This then leads to the situation illustrated in FIG. 10, in which the fabric (6) is under tension. The profile (20) is then locked in position relative to each tensioning member (9) thanks to the penetration of the rib (55) inside the housing (27).
Il convient alors de réaliser le blocage en position de chaque organe de mise sous tension (9) par rapport au profilé (30), par l'intermédiaire de la vis (37). Du fait que les organes de mise sous tension (9) sont de taille limitée, typiquement de l'ordre de la dizaine de centimètres, il est possible de faire coulisser la vis (37) et le taquet associé (36) à l'intérieur de la glissière pour l'engager dans le logement (63) prévu à cet effet dans la zone (58) de chaque organe de mise sous tension (9), tel qu'illustré à la figure 11. Bien entendu, d'autres modes de verrouillage que ceux illustrés aux figures peuvent être employés, dès lors qu'ils assurent un maintien ferme et efficace des différents profilés les uns par rapport aux autres, notamment dans le cas où la toile est soumise à des efforts relativement importants, par exemple lorsqu'elle est exposée au vent.It is then necessary to carry out the locking in position of each tensioning member (9) relative to the profile (30), by means of the screw (37). Because the tensioning members (9) are of limited size, typically of the order of ten centimeters, it is possible to slide the screw (37) and the associated cleat (36) inside of the slide to engage it in the housing (63) provided for this purpose in the zone (58) of each tensioning member (9), as illustrated in FIG. 11. Of course, other locking modes than those illustrated in the figures can be used, as long as they ensure firm and effective maintenance of the various sections with respect to each other, in particular in the case where the fabric is subjected to relatively large efforts, for example when exposed to wind.
Il ressort de ce qui précède que le dispositif d'affichage conformément à l'invention présente de multiples avantages, et notamment le fait qu'il puisse s'adapter très facilement à des variations de dimensions consécutives aux opérations de confection de la toile, puisqu'il permet un réglage de la tension de la toile à différents points distincts de la longueur de la toile. En outre, le mécanisme de fixation peut s'adapter à différents types de structures porteuses, en pouvant compenser certains défauts géométriques, et notamment les phénomènes de cintrage de poutres porteuses, ou bien encore des variations dans les dimensions de la stmcture porteuse ou dans les angles que forment les différents côtés d'une telle structure porteuse. It appears from the above that the display device according to the invention has multiple advantages, and in particular the fact that it can very easily adapt to variations in dimensions consecutive to the operations of making the canvas, since 'it allows adjustment of the tension of the fabric at different points distinct from the length of the fabric. In addition, the fixing mechanism can adapt to different types of load-bearing structures, by being able to compensate for certain geometric defects, and in particular the phenomena of bending of load-bearing beams, or even variations in the dimensions of the load-bearing structure or in angles formed by the different sides of such a support structure.

Claims

REVENDICATIONS
1/ Dispositif d'affichage comportant une toile tendue (6) équipée sur au moins deux de ses côtés opposés d'un jonc latéral (8), et un mécanisme de mise sous tension de la toile par rapport à une stmcture fixe, ledit mécanisme de mise sous tension comportant une pluralité de profilés (10, 20, 30, 40) coopérant entre eux ainsi qu'avec la stmcture fixe ou la toile (6), caractérisé en ce qu'il comporte une pluralité d'organes de mise sous tension (9) distincts de faible longueur coopérant avec un des profilés solidaire de la toile et un des profilés solidaire de la stmcture fixe, lesdits organes de mise sous tension (9) étant répartis sur la longueur de la toile, de manière à permettre une mise sous tension de la toile adaptée au niveau de chacun de leurs emplacements.1 / Display device comprising a stretched canvas (6) fitted on at least two of its opposite sides with a lateral rod (8), and a mechanism for tensioning the canvas relative to a fixed structure, said mechanism tensioning device comprising a plurality of sections (10, 20, 30, 40) cooperating with each other as well as with the fixed structure or the fabric (6), characterized in that it comprises a plurality of placing members separate tension (9) of short length cooperating with one of the sections integral with the fabric and one of the sections integral with the fixed structure, said tensioning members (9) being distributed over the length of the fabric, so as to allow tensioning of the canvas adapted to the level of each of their locations.
2/ Dispositif d'affichage selon la revendication 1, caractérisé en ce que les profilés (20, 40) coopérant avec le jonc de la toile sont identiques.2 / display device according to claim 1, characterized in that the profiles (20, 40) cooperating with the rod of the canvas are identical.
3/ Dispositif d'affichage selon' la revendication 1, caractérisé en ce que les profilés (20, 40) coopérant avec le jonc de la toile sont réalisés sous forme de segments successifs (7) de longueur unitaire inférieure à la longueur du côté de la toile (6) sur laquelle ils sont mis en place, leur mise en place s'effectuant par coulissement de la gorge (21) du profilé (20) sur le jonc (8).3 / display device according to ' claim 1, characterized in that the profiles (20, 40) cooperating with the rod of the fabric are produced in the form of successive segments (7) of unit length less than the length of the side of the fabric (6) on which they are placed, their establishment being effected by sliding the groove (21) of the profile (20) on the rod (8).
4/ Dispositif d'affichage selon la revendication 3 caractérisé en ce que les organes de mise sous tension (9) sont mis en place au niveau des jonctions entre les segments successifs (7) des profilés coopérant avec le jonc de la toile.4 / Display device according to claim 3 characterized in that the tensioning members (9) are placed at the junctions between the successive segments (7) of the profiles cooperating with the rod of the fabric.
5/ Dispositif d'affichage selon la revendication 1, caractérisé en ce que les organes de mise sous tension (9) sont identiques et possèdent plusieurs nervures décalées (54-56), permettant des accrochages différents du profilé (20) coopérant avec le jonc, de manière à autoriser différentes intensités de mise sous tension. 6/ Dispositif d'affichage selon la revendication 1, caractérisé en ce qu'un des profilés (10) coopérant avec la stmcture fixe comporte plusieurs nervures inclinées5 / display device according to claim 1, characterized in that the tensioning members (9) are identical and have several offset ribs (54-56), allowing different hooking of the profile (20) cooperating with the rod , so as to allow different power-up intensities. 6 / display device according to claim 1, characterized in that one of the profiles (10) cooperating with the fixed structure comprises several inclined ribs
(13-15) pennettant de disposer le premier côté de la toile (6) à des niveaux différents de la stmcture, de manière à compenser notamment des écarts géométriques de la toile et/ou de la structure.(13-15) permitting to arrange the first side of the fabric (6) at different levels of the structure, so as to compensate in particular for geometric deviations of the fabric and / or of the structure.
7/ Dispositif d'affichage selon la revendication 1, caractérisé en ce qu'il comporte des moyens de verrouillage (26) de l'accrochage du profilé (20) coopérant avec le jonc sur les nervures (13-15; 54-56) du profilé (10) coopérant avec la stmcture fixe et des organes de mise sous tension (9).7 / display device according to claim 1, characterized in that it comprises locking means (26) of the attachment of the profile (20) cooperating with the rod on the ribs (13-15; 54-56) profile (10) cooperating with the fixed structure and tensioning members (9).
8/ Dispositif d'affichage selon la revendication 1,, caractérisé en ce qu'il comporte des moyens de verrouillage (35-38) de l'enclenchement du pivotement de l'organe de mise sous tension sur le profilé (30) coopérant avec la stmcture fixe. 8 / display device according to claim 1, characterized in that it comprises locking means (35-38) of the engagement of the pivoting of the tensioning member on the profile (30) cooperating with the fixed structure.
PCT/FR2003/000890 2002-04-02 2003-03-20 Display device comprising a piece of fabric stretched over a frame WO2003083812A2 (en)

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FR02/04059 2002-04-02

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WO2004047056A1 (en) * 2002-11-19 2004-06-03 Marc Jurgen Gerrits An improved display surface
DE102005005443B4 (en) * 2004-03-31 2012-08-09 Piotr Lukasz Walczak Method for fixing an elastic visible surface for advertising and device for fixing the elastic visible surface for advertising
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DE102005016942A1 (en) * 2005-04-12 2006-10-19 Udo Blaschczok Gmbh Fastening device e.g. for advertisements placards, has framework rack at which tarpaulins can be fitted and having two parallel running mounting rails for admission and fastening of tarpaulin to framework
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Also Published As

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AU2003244699A8 (en) 2003-10-13
FR2837968B1 (en) 2005-05-20
AU2003244699A1 (en) 2003-10-13
FR2837968A1 (en) 2003-10-03
WO2003083812A3 (en) 2004-04-01

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