EP1376517A1 - Non-polluting display device, poster and panel for said device - Google Patents

Abstract

The notice (4) has a sheet with a back and a front, where information in text or image form is applied to the front by printing, and a loop material disposed on the back of the sheet. The loop material comprises of a warp and weft knitted fabric in which the loops are knitted and fixed. The weft knitted fabric weighs between 20 and 100 gram per meter square. Independent claims are also included for the following: (a) a notice board (b) a display device.

Description

The present invention relates to a device display comprising a display panel; a poster consisting of a sheet having a back and a front, information in the form of text or image which can be affixed, for example by printing, on the front; and means of fixing the poster to the panel. The current invention also relates to a poster consisting of a sheet having a back and a front, information under form of text or image that can be or be affixed to the front, for example by printing. Furthermore this The invention also relates to a display panel.

Displays of this kind have particularly developed in recent decades, especially in the form of billboards or information that can be found all over the cities, metro, roadside, etc.

Increasingly, these posters are produced with very expensive reproduction processes and on increasingly expensive sheets themselves, the need mark the spirits with an ever higher quality implying this parallel increase in costs of these posters. In addition, especially when they are large dimensions, these posters require, for their installation, special skills, regarding glue use, how to apply the glue to the panel, the how to stick the poster on the panel, etc.

The glues used, which must often have particular bonding properties, for example being liquid enough to be easily brushed on posters, but dry quickly after installation of the poster, therefore contain many compounds chemicals you don't want to allow to spread in the atmosphere for reasons of protection of the environment.

Finally, the removal of these posters is not simple, requiring either a lifting which takes a lot of time and which is often not carried out in a very net, a new product with chemical compounds to dissolve the glue, the dissolving product itself a pollutant that we do not want to let disseminate in the atmosphere.

Obviously, not to use products polluting tights, and to obtain a simple removal and clean without leaving a trace (except for the holes in posters), we can bring ourselves to use push pins or nails. It goes without saying, however, that this technique is particularly slow and difficult to implement, in especially when the posters are large height and are large. In the case of panels of great heights, we wish to be able to use a kind of broom on which we put the poster soaked with sticky product, and put the poster on the panel by vertical scan. This technique cannot be used with fixing means with nails or tacks.

The present invention aims to overcome the disadvantages of the prior art by proposing a device display in which posters can be attached to the panel with the same techniques as in the case of collage, or in any case similar and as simple, without however having to use glue and products associated with takeoff which are harmful to the environment.

According to the invention, the display device, with a panel, a poster made of a sheet having a front and back, information in the form of text or image being affixed, for example by printing, on the front, and means of fixing the poster to the panel, the fixing means consisting of hooks and loops, characterized in that the hooks come from of the main face of the panel on which must be affixed the poster and the loops come from the back of poster.

Preferably, substantially the entire face main panel has hooks, especially more 75% of the main face.

Preferably, the entire surface of the back has curls.

In the present application, by hooks is meant any element having a hooking function with a loop for mutual fixation, for example a harpoon, a mushroom, an enlarged head stud, etc., as it is classic in the field of Velcro fasteners.

In the present application, the term “surface having hooks” is understood to mean a surface having no part without hook, a part without hook being a part not comprising a hook over a distance in width greater than a usual spacing between two hooks. Thus, the space between two consecutive hooks in a hook region cannot be considered as a region without a hook within the meaning of the present application. For example, a hook region is a region with hooks at a density greater than 1 / cm ² .

According to a preferred embodiment a tablecloth with hooks on one of its faces is fixed by gluing, welding or in any other way, by its other face on the main face of the panel, the face to tablecloth hooks preferably having hooks on substantially its entire surface.

According to a particularly embodiment simple to implement, a material with loops, by example a loop knit or a looped nonwoven is fixed, by gluing, laminating, welding or any other way on the back of the poster, preferably on substantially the entire surface of the back.

Preferably, the loop material consists of a warp and weft knit in which loops are knitted, fixed for example by rolling, on the back surface of the poster. The knitted fabric preferably has a weight of between 20 and 100 g / m ² , preferably between 25 and 50 g / m ² and even more preferably between 30 and 40 g / m ² .

The density of the loops (number of loop feet / cm ² ) is from 10 to 50 / cm ² , preferably from 20 to 30 / cm ² .

By thus providing a hook-and-loop connection by with a light knit with loops on one side and a hook sheet on the other side to be fixed, we obtain a particularly simple connection of the poster to the panel and which can be carried out by the same techniques as in the case of adhesives while allowing a simple removal and non-use of polluting glue.

According to a preferred embodiment of the invention, the hook sheet is made of a material flexible especially in polypropylene, polyethylene, polyamide and their mixtures and the hooks come from the tablecloth the same material, having a height between 0.3 mm and 1 mm.

According to another preferred embodiment of the invention, the hooks are mushroom-shaped knitted in polypropylene thread with a height of 1.3 mm (including the base), with a density of the order of 40 to 50 / cm ² .

According to another preferred embodiment of the invention the loop material is made of a non loop woven.

The present invention also relates to a poster consisting of a sheet having a back and a front, information in the form of text or image being affixed for example by printing on the front and a material to loops being fixed on the back, preferably on substantially the entire surface of the back.

The present invention also relates to a poster consisting of a sheet having a back and a front, information in the form of text or image which can be affixed, for example by printing on the front, and a loop material being attached to the back, preferably over substantially the entire surface of the back.

According to an improvement, the loop material consists of a knitted fabric, in which loops are knitted, or of a looped nonwoven, the knitted fabric or the nonwoven having a weight of between 20 g / m ² and 100 g / m ² , preferably between 25 g / m ² and 50 g / m ² , and even more preferably between 30 g / m ² and 40 g / m ² . A very flexible poster is thus obtained and therefore easy to print and / or install. In particular, the poster can be printed by passing it through a simple office printer. In particular, the sheet may be a sheet of conventional office paper weighing between 60 g / m ² and 150 g / m ² .

The present invention also relates to a panel display intended to receive a poster in the form of a sheet, hook means being attached to the face main panel to receive the poster, preferably over substantially the entire surface.

La figure 1 est une vue en perspective d'un dispositif d'affichage suivant l'invention ;

La figure 2 est une vue de côté de l'affiche du dispositif d'affichage de la figure 1 ; et

La figure 3 représente une nappe à crochet du panneau d'affichage de la figure 1.

An embodiment is now described only by way of example, with reference to the drawings in which:

Figure 1 is a perspective view of a display device according to the invention;

Figure 2 is a side view of the poster of the display device of Figure 1; and

FIG. 3 represents a hook ply of the display panel of FIG. 1.

In Figure 1, there is shown a device display consisting of a panel 1 of substantially shaped rectangular and delimited by a cornice 2 on all its periphery. Cornice 2 defines a front face 3 or main of the panel on which a poster 4 must be disposed. A hook 5 tablecloth 6 is glued on this face 3. The hook tablecloth is made of polyethylene, polypropylene, polyamide and / or polyester and has a thickness between 0.1 mm and 0.5 mm.

The sheet 5 is glued to the panel 1, which is in wood or other weather resistant material.

The gripping ply 5 is arranged so continues so that there is no irregularity of surface or difficulty in joining the different elements of the poster. Poster 4 has on its face front 8 information or advertising or images etc. This information is intended to be read by the public when poster 4 is placed on panel 1 which can be for example at the edge of a road, at the entrance from a village, on the metro, etc.

On the reverse side 9 of the poster 4 in the form of a sheet, it is joined by rolling a knitted fabric 10 with a loop. The knitting weight is 40 g / m ² . It can be between 20 g / m ² and 100 g / m ² . The height of the loops, that is to say the dimension of the loops in their greatest extension, is for example between 1.6 mm and 2.5 mm. The glue used for the lamination is an adhesive which has a good affinity both with the material of the knitted fabric 10 and that of the poster 4. The poster 4 is made of paper. The knit 10 is for example made up of a base and loops made of a polyamide thread of 44/10 decitex, or else made up of a base made of a polyamide thread of 22/1 decitex and loops made of a polyamide thread of 44/10 decitex or loops in polyester thread of 76/24 decitex. Knitting is achieved by interlacing warp threads, weft threads and loop threads, for example by forming them on a three-bar loom.

According to another embodiment, the loop material consists of a loop nonwoven obtained for example from curly filament cables, with a thickness between 0.1 and 3 mm and a weight between 15 and 100 g / m ² .

In particular, the filaments can be polyolefins, polyamides, cellulose acetates, etc.

In Figure 3 there is shown a web 5 to hook having hooks 6. This sheet 5 having hooks 6 directly from its upper surface can be made for example according to the lamella process described in French patent application N ° 9904331 published October 13, 1999 and in the name of the plaintiff. Other processes, for example the Velcro drum process is obviously also possible.

The extruded hooks have a density of 50 to 250 / cm ² , preferably 100 to 200 / cm ² .

Claims (11)

Poster (4) consisting of a sheet having a back (9) and a front (8), information in the form of text or image which can be or be affixed to the front, for example by printing, characterized by a material with loops arranged on the back of the sheet. Poster according to claim 1, characterized in that the loop material is arranged over substantially the entire surface of the back. Poster according to claim 1 or 2, characterized in that the loop material is laminated, glued or welded on the back. Poster according to claim 1, 2 or 3, characterized in that the loop material consists of a knitted fabric, in which loops are knitted, or of a looped nonwoven, the knitted fabric or nonwoven having a weight between 20g / m ² and 100 g / m ² , preferably between 25 g / m ² and 50 g / m ² , and even more preferably between 30 g / m ² and 40 g / m ² . Poster according to one or more of Claims 1 to 4, characterized in that the sheet is made of paper, with a grammage between 50 g / m ² and 150 g / m ² . Poster according to claim 5, characterized in that the sheet is of A3 or A4 format. Display panel (1) intended to receive a poster (4) according to one of claims 1 to 6, characterized in that hooks come from the main face of the panel on which the poster is to be affixed. Display panel (1) according to claim 7, characterized in that substantially the entire main face of the panel has hooks, in particular more than 75% of the main face. Display panel (1) according to claim 7 or 8, characterized in that a sheet (5), comprising a substrate and hooks (6) from one of the faces of the substrate, is fixed by gluing, welding or in any other way, by its other face on the main face of the panel. Display panel (1) according to claim 9, characterized in that the substrate has a thickness of between 0.1 mm and 0.5 mm and the hooks (6) have a height of between 0.3 mm and 1 mm . Display device comprising a panel according to one of claims 1 to 6 and a panel (1) display according to one of claims 7 to 10.

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