FR2722903A1 - DEVICE FOR INDIVIDUAL AND SELECTIVE DISPLAY OF A SET OF POSTERS - Google Patents

Abstract

A series of posters or similar panels (4) are attached to individual support sheets (1,2) of flexible material wound at least partly around a drum (5). A control system allows unwinding of the sheets from the drum such that the poster appears in a selected position, e.g. behind a display aperture or window (9). A series of posters may be mounted in slightly varying positions, such that their display positions are in planes (a-e) slightly differently spaced relative to the window. Movement of the support sheets and posters is controlled by traction cords wound around drive pulleys (7), and the posters are secured by transverse bars and lateral fastening strips of the support sheet.

Description

INDIVIDUAL AND SELECTIVE DISPLAY DEVICE

OF A SET OF POSTERS

  The present invention relates to a device for displaying individual-

  selectively, the different posters of a set of posters by

  positioned successively behind a viewing window.

  This device finds application in particular in the field of advertising

or traffic information.

  It can be provided at a fixed post, for message display panels

  (or other inscriptions) changing.

  It also finds application on vehicles, the viewing windows

  tion of the advertising messages being in this case provided on the side faces and / or on the

  rear wall of a van type vehicle.

  In this type of device, posters are generally placed end to end.

  end on a flexible support to form a strip of great length.

  It can be an endless band, as is provided for example

  in documents FR-A- 1 051 852, FR-A-2 579 810 and US-A-1 530 888.

  According to other possible embodiments, as described for example in FR-A-2 692 395, FR-A-2 152 012 and WO-92/03813, we are dealing with a strip of

  limited length, the ends of which are wound on drums.

  The long strip scrolls past the display window. Means are provided for driving and controlling the position of the strip, which make it possible to bring the selected poster just behind the viewing window, thereby rendering it

  visible to observers, especially the public if we are dealing with an advertising device.

  According to the first four documents cited above, the device

  display equips an advertising vehicle.

  The control of display sequences can be easily controlled by a programmable controller or a microcomputer. Appropriate control means such as opto-electronic detector cells, and / or mechanical detectors are

  associated with the device to ensure correct operation of the assembly.

  In known devices, the posters located at the queue-leu-leu, in a predetermined order, necessarily scroll in front of the viewing window

in this order.

  There is therefore a problem in the case where the display sequence does not

does not match this order.

  Thus, if two non-neighboring posters are to be successively displayed, it is necessary to scroll empty, behind the display window, the intermediate poster (s). It therefore has a momentary untimely display of moving posters, which is not completely satisfactory for observation. In addition, this empty scrolling results in a loss of time which is deducted from the time

total exposure.

  - In this regard, it should be noted that the advertising contract binding the poster to its customers may provide that the exposure cycles of the different posters are not the same for all posters. So each poster will have a frequency and

  well-defined exposure times, which may however be changed over time.

  The order in which certain posters may pass may also be imposed, in particular if there is an intellectual relationship between two or more posters, which

  is particularly the case for so-called progressive advertising campaigns.

  These imperatives linked to the sequencing of successive exposures are

  hardly compatible with the fact that all of the posters are connected end-to-end

  tip, as provided in the prior art.

  The invention therefore aims to solve this difficulty by proposing a display device of the type mentioned above, in which one can have total freedom for the exhibition of the selected poster, as well as regards its frequency as its duration, as well as for the order of their scrolling These objectives are achieved, in accordance with the invention, thanks to the fact that each of the posters is secured to a flexible support capable of being wound, at least partially, on a rotary receiving drum, control means making it possible to selectively bring said poster either in a retracted position in which it does not appear behind the viewing window, or in a deployed position, in which it is opposite said window, the deployed positions of the various posters forming part of separate parallel planes which are slightly spaced from one another. Of course, the arrangement of the device is such that when a poster is in the retracted position, neither the constituent elements of its support, nor itself

  hinders the viewing of other posters, when these are deployed.

  Furthermore, according to a certain number of additional advantageous, non-limiting characteristics of the invention: - the flexible support comprises a flexible strip which is wound on the receiving drum and extended at the viewing window, by a pair of straps lateral; - the two straps are connected by a transverse bar used to fix the poster; - The poster is removably attached on the one hand to this bar, and on the other hand to the transverse edge of the flexible strip; - The device comprises means for tensioning the flexible strip - the bar is attached to a pair of tensioning cables winding on return pulleys with automatic winding; - at the outlet of the receiving drum, the flexible strip passes over a deflection roller;

  - this deflection roller has a biconical wall, of slight diameter-

  larger in its center, which favors the centering of the strip; the viewing window is arranged vertically, while the drums and, where appropriate, the deflection rollers, have horizontal axes parallel to the general plane of the window, and are placed in a box located at the top of this window; in this case, the return pulleys advantageously have a horizontal axis and are

  placed in a box arranged at the base of the window.

  The invention also relates to an advertising vehicle which is equipped

  at least one device as defined above.

  Other characteristics and advantages of the invention will become apparent from the

  description and attached drawings which represent a preferred embodiment.

  In the drawings - Figure 1 is a schematic perspective view of the flexible support receiving a poster (shown partially broken away), as well as guide and drive means, the poster being in the deployed position opposite the window display (not shown); - Figure 2 is a detail of the cross bar for fixing the poster, this bar being shown cut transversely; - Figure 3 is a view similar to Figure 1, corresponding to the retracted position, poster assumed removed; - Figure 4 is a top view of a receiving drum and the guide roller associated therewith; - Figure 5 shows, schematically, the device as a whole, cut by a transverse vertical plane, perpendicular to the posters and the viewing window; - Figure 6 is a view similar to Figure 5, on a larger scale, and showing only two neighboring poster supports, one of which is in the retracted position and the other in the deployed position; - Figure 7 is a side view of a set of return pulleys ensuring the traction of the tensioning cables. located on one side of the device; - Figure 8 is a side view, on a smaller scale, of the lower part delafigure6; - Figure 9 shows, very schematically, an advertising vehicle

  equipped with several devices according to the invention.

  In the embodiment presented below, with reference to the drawings, the viewing window has a vertical arrangement, and the device comprises a set of five posters which can be positioned in turn, selectively, behind this

window.

  It goes without saying that the number five is only one possible example of

  achievement, this number can be arbitrary.

  Figure i shows the flexible support receiving one of the posters.

  This support is formed by a flexible strip 1, such as an oilcloth of

  thin, a pair of side straps 2 and a pair of side cables 3.

  The strip 1, which forms the upper part of the support, is wound on a rotary cylindrical drum 5, with a horizontal axis 50. The latter is parallel to the general plane

  vertical, containing the viewing window, not shown.

  Drive means, which will be described later, make it possible to rotate the drum 5 in one direction or the other, as symbolized by the

double arrow F in Figure 1.

  The strip 1 passes over a return roller 6, with a horizontal axis parallel to that of the drum 5. The return takes place at approximately 45, the part of the strip connecting the roller 6 to the drum therefore being approximately horizontal. The roller 6 has a biconical wall, of small conicity, the largest diameter of which is in its part

  central, as seen more precisely in Figure 4.

  At its ends, which correspond to the small diameters of the wall

  conical, there are provided flanges 60 forming stops for the lateral edges of the strip.

  These flanges 60 also have a conical wall, which converges inwards, so as to prevent the lateral escape of the strip. The slightly biconical shape of the roller 6 ensures automatic alignment, and good centering of the strip 1, as well

  when it is unrolled than when it is rolled up.

  The end of the strip 1 is extended on the unrolled side on the drums 5 by the side straps 2, which are made of a tension-resistant fabric. The straps 2 are fixed to the band 1 by any suitable means, for example by gluing or using rivets. The free ends of the straps 2 are connected

  to each other by a crossbar 20.

  As seen in Figure 2, the bar 24 consists of a set of two plates 21, 22 of small thickness and with rounded edges, which sandwich the two straps 2, the fixing being made by rivets 23 which cross elements 21, 22

and strap 2.

  To the cross-member 20 are attached the cables 3, directed downward, and each winding on a pulley 7. These are pulleys with two lateral flanges

  discoid, delimiting a groove receiving the cable (see Figure 7).

  The pulleys 7 are automatic return pulleys, of known type, containing an internal spiral spring which constantly tends to rotate in the direction of the winding of the cable in the groove, thus permanently exerting a tensile force.

  on the cable, as symbolized by the arrows T in Figure 1.

  This support carries a poster 4 which is fixed therein in an easily removable manner. In the illustrated embodiment, the attachment is done by a hook-and-loop fastening system, of the kind widely distributed under the name

  commercial "VELCRO" (registered trademark).

  To this end, the transverse end edge of the flexible strip 1, referenced, and the transverse bar 20, bear, on the side facing the viewing window,

  one of the two elements of the gripping fabric, for example the hooks.

  The back of the posters 4 is trimmed, in the corresponding location zones.

  dant, of the other element of the fabric - in this case the loops -.

  Thus, the placement of the poster on the support is very easy, by simple pressure. After fixing, the poster occupies the space corresponding to the

  rectangle formed by the two straps 2, the edge 10 and the bar 20.

  The inscriptions 40 carried by the poster are centered on it so as to appear correctly through the viewing window (not shown in the

  figure 1), the dimensions of which are slightly smaller than those of the poster.

  A simple comparison of Figures 1 and 3, it is understood that by rotating the drum 5 in the direction of unwinding of the strip, the poster will deploy and place in a vertical plane; this deployment is done under tension, as a result of the

  traction of the cables 3 stressed by the return pulleys 7.

  If the drum 5 is rotated in the opposite direction, the strip 1 is wound almost completely on the drum, while the bar 20 comes to occupy a high position, above the level of the viewing window. The poster is therefore in a retracted position, folded over the deflection roller 6. It will be noted that in position

  high, the straps 2 are retained laterally by the flanges 60 of the roller 6.

  Figure 5 shows how a set is installed in the device

  of five poster supports such as the one just described.

  In this figure, the reference window 9 has been designated,

  which includes a frame 91 and a transparent panel 90, for example a window.

  The device comprises a frame 8, essentially consisting of a front wall 82, in which the window 9 is mounted, a high box 80 and a low box 81. In the high box 80 are mounted all of the drums 5 and guide rollers 6. In the bottom box 81 are installed all the pulleys of

reminder 7.

  The positioning of these different elements is such that each of the five flexible poster supports has a deployed position which is part of a vertical plane a, b, c, d, e, parallel to the window 90. These different planes are spaced regularly, separated by a small space j. Similarly, plan a from the first poster

  (the poster closest to the window) is located a short distance k from the window 90.

  The locations of the various deflection rollers 6a, 6b, 6c, 6d and 6e,

  and different drums la, lb, lc, ld and le, inside the box 80, are determined

  born in such a way as to occupy the smallest possible space, without any risk

  of contact between poster supports or posters.

  Similarly, the different pulleys 7a, 7b, 7c, 7d and 7e provided in the bottom box 81 have offset positions, avoiding the interference of the different

  cables, with maximum compactness.

  In the embodiment shown, as seen more particularly-

  ment to Figures 5 and 7, the five pulleys provided on each side of the device are

divided into two groups.

  The pulleys 7a, 7b, 7c associated with the first three posters, have axes located in the same horizontal plane, but offset both transversely and from the front

  backwards - to ensure the spacing j mentioned above -.

  The other two pulleys 7d and 7e are arranged in the same way, at a

  level higher than that of pulleys 7a, 7b and 7c.

  Each pulley is mounted idly on a square support 70 fixed to the

chassis 8.

  The offset in the transverse direction of the pulleys is compensated by the fact that the different cables 3 have different attachment points on the crossbar

20.

  This feature is clear from Figure 8, which shows that

  the mutual spacing of the cables 3a is greater than that of the cables 3b.

  Each drum 5 is driven by an electric gear motor 51 fixed to the frame 8, and in the output shaft coaxially drives the shaft 50

of the drum.

  The set of five motors driving the drums 5a to 5d is controlled by a programmable automaton or a microcomputer, not shown, into which the various data linked to the desired display cycle have been introduced, in particular the scrolling order. and exposure, the frequency and exposure time of each poster. Certain posters could of course be displayed longer

  and more often than others, depending on the program.

  In FIG. 6, only the systems associated with the two have been represented.

  first posters, corresponding to indices a and b.

  The first poster 4a is in the retracted position, the strip being wound on its receiving drum 5a, while the poster is in the high position, not visible through the glass 90 by an observer who would be located on the left of the figure. On the contrary, the poster 4b is in the deployed position, and is located opposite

  of the window 90. It is therefore visible to the observer.

  The window 9 is so dimensioned that the various organs of the control system, such as the straps, the cables, and the transverse bars of the assembly

  undeployed systems are not visible through the window.

  In FIG. 8, it will be noted that the poster 4, the outline of which has been shown

  in dashed lines, has dimensions substantially larger than those of the window.

  In Figure 6, there is shown schematically detectors 92 and 93 of the

  good deployment, and, respectively, good retraction of each of the posters.

  The detectors 92a, 92b are placed at the bottom of the window, while

  that the detectors 93a, 93b are arranged in its upper part.

  These are detectors known per se, for example of the type

  optoelectronics, such as photocells.

  These detectors make it possible to check the deployment status of each poster at any time, and to send signals corresponding to this state to the microprocessor or programmable logic controller which controls the engine, in order to ensure correct operation.

of the display.

  As already said, the posters and their support are constantly maintained

  under tension, thanks to the return pulleys which act on the tensioning cables.

  In an alternative embodiment, the tension of the posters and their support could simply be achieved under the effect of the weight of the crossbar 20, the latter

can be ballasted if necessary.

  The substitution of one poster for another can be carried out in an extremely short time, since the retraction of the previous poster and the deployment of

  the new poster can be done simultaneously, in hidden time.

  The device is remarkably suitable for progressive advertising campaigns in which a poster carries a message announcing information to

  find out on one or more of the following poster (s).

  The posters used are made of thin and flexible material, resistant to

  tearing and creasing, for example of paper or plastic film.

  Hanging systems other than gripping fabrics may well

  understood to be provided, for example fixing by clamps, by button-type clipping-

pressure, or by adhesive tapes.

  To make it easier to change the posters, a viewing window can preferably be opened, or having an easily removable window 90,

  which will provide access to the various poster supports.

  It goes without saying that the dimensions of the device will be adapted to the dimensions

of the posters concerned.

  As an indication, the width of the strip 1 will be between 1 m and

  a few meters, the drums 5 and the deflection rollers 6 having a suitable length.

  The drums 5 may be made of aluminum, with a diameter of the order of 60 mm. The rollers 6 will preferably be made of surface-treated aluminum, to

  do not leave marks on the back of posters; their diameter will be of the order of 30 to 40 mm.

  The inter-poster spacing j will be of the order of 15 to 30 mm.

  The return pulleys 7 will have a diameter of the order of 80 to 100 mm.

  This kind of device can be used in a fixed location, for example integrated in the facade of a building, or housed in a panel mounted on a

stand or any other support.

  It can also be mounted on an advertising vehicle, as is

illustrated in figure 9.

  This figure shows a vehicle 100 of the van type, the cockpit of which is referenced 103. The vehicle has lateral faces 101 and a rear wall 102, provided with viewing windows 9 and 9 'respectively of the posters. The display devices according to the invention, three in number, are installed at

  the interior of the vehicle and each associated with one of the windows.

Claims (9)

  1. Device for individually displaying, selectively, the various posters of an assembly by positioning them successively behind a viewing window, characterized in that each of the posters (4) is integral with a flexible support (1, 2 , 3) capable of being wound, at least partially, on a rotary receiving drum (5), control means (51, 7) making it possible to selectively bring said poster (4) either to a retracted position, in which it n 'does not appear behind the viewing window (9), either in a deployed position, in which it is opposite said window (9), and that the deployed positions of the various posters (4) are inscribed in separate parallel planes (a, b, c, d, e) slightly apart the each other.   2. Device according to claim 1, characterized in that said flexible support comprises a flexible strip (1) winding on the receiving drum (5) and extending, at the viewing window (9), by a pair of straps side (2).   3. Device according to claim 2, characterized in that the two straps (9) are connected by a transverse bar (20) used for fixing the poster (4). 4. Device according to claim 3, characterized in that the poster is removably attached on the one hand to said bar (20), on the other hand to the edge   transverse (10) of said strip (1).   5. Device according to one of claims 2 to 4, characterized in that   that it comprises means (7) for tensioning the flexible strip (1).   6. Device according to one of claims 3 or 4, taken in combination   with claim 5, characterized in that the bar (20) is attached to a pair of   tensioning cables winding on return pulleys (7) with automatic winding.   7. Device according to one of claims 2 to 6, characterized in that   that at the outlet of the receiving drum (5), the flexible strip (1) passes over a roll of reference (6).   8. Device according to claim 7, characterized in that the deflection roller (6) has a biconical wall, of slightly larger diameter in sound   center, which favors the centering of the strip.   9. Device according to one of claims 2 to 8, characterized in that   that the viewing window (9) is arranged vertically, while said drums (1) and, where appropriate, said deflection rollers (6) have horizontal axes parallel to the general plane of the window (9), and are placed in a box (80) located at the top of this window (9).   1 0. Device according to claims 6 and 9, taken in combination,   characterized in that said return pulleys (7) have a horizontal axis and are placed in a box (81) disposed at the base of the window (9). 1 1. Advertising vehicle (100) equipped with at least one compliant device   to one of the preceding claims.