FR2703496A1 - Multimedia message board. - Google Patents

Abstract

The present invention relates to a multi-message display panel in which the messages to be displayed are carried by a canvas (8a) transparent to the light rays emitted by a light source (11) arranged behind the canvas (8a), characterized in that: - it comprises at least one display sector (3a, 3b, 3c, 3d, 3e) provided with at least one canvas storage cylinder (5a) on which the canvas (8a) is wound, - at each storage cylinder (5a) is associated a return roller (7a) disposed at the upper part of the display sector (3a), - the canvas (8a) covers the return roller (7a) to extend beyond that - here, vertically under the action of a tension bar (9a), so that the canvas (8a) is able to occupy two positions of use, namely a display position, in which it is deployed in the display sector (3a), and a retracted position, in which it is wound on the storage cylinder (5a).

Description

The present invention relates to a multi-message display panel

  particularly intended to bring to the attention of motorists traffic instructions The present invention is of course also applicable in any field other than road traffic. In the field of road traffic, there are known billboards usually consisting of matrices of light points that are activated according to a given combination so as to constitute a sign or a message Because of their "digital" character, the information transmitted by these panels is more difficult for the user to perceive than the information provided by billboards with

classic type.

  Also known are billboards used mainly in the cities to display information messages or commercials In these panels several messages are presented on a canvas, illuminated by transparency, which is rolled up and unrolled by a roller to a lower roll, and vice versa, marking down time on each message to

  allow reading by users.

  Display panels of this type have significant disadvantages Firstly it is not possible to pass, directly, a given message to a new message, except of course if it is two messages successive, which increases the access time from one message to another, this access time being a function of the number and order of the messages carried by the canvas Moreover, if the fact of being obliged to pass by a series of intermediate messages to access the desired message is not a major drawback in the field of advertising display, it is not the same when it comes to the field of road traffic Indeed, in the latter case, the user sometimes has very little time to "pick up" a message it can take as effective a message that is only transient, resulting in serious

  disadvantages in terms of security.

  Secondly, if one wishes to use this type of billboard to transmit simultaneously several messages, that is to say several signs relating to different parameters concerning for example the road traffic, it may be interesting to can, according to the needs, modify on the billboard the position of these messages Or, the display devices used in the billboards allow such changes only on the condition of changing the entire canvas

  display, which is a long and expensive operation.

  The object of the present invention is to overcome these drawbacks by proposing a multi-message display panel allowing direct access to a given display, which is of a low cost and easy to maintain, and which also allows, if the user wishes, to hide a message displayed during the time required to change it, which, in the case of a traffic sign

  road safety is a factor in improving safety.

  The present invention relates to a multi-message display panel in which the messages to be displayed are carried by a transparent fabric to the light rays emitted by a light source disposed behind the fabric, characterized in that:

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  it comprises at least one display sector, this display sector being provided with at least one canvas storage cylinder, extending over the width of the display sector, on each of which is rolled up the fabric, at each storage cylinder is associated with a return roller which is parallel thereto and which is arranged at the upper part of the display sector, the fabric issuing from the storage cylinder covers the return roller to extend beyond it vertically under the action of the weight of a tension bar, so that the fabric is able to occupy two positions of use, namely a first position, or display position, in which it is deployed in the display area, and a second position, or retracted position,

  in which it is wound on the storage cylinder.

  In one embodiment of the invention, the tension bar comprises vertical guiding means. These vertical guiding means may consist of vertical orifices provided at the ends of the tension bars, intended to receive, slidingly, elements vertical guide rods, constituted for example by vertical rigid rods In a variant of this embodiment of the invention, when superposed display sectors of different widths are used, it is possible to use transparent rigid elements or transparent cables stretched between the upper and lower parts of the display area. In another embodiment of the invention,

  uses two detectors, for example consisting of micro-

  switches, which are respectively arranged on and under each voltage bar, for each of the desired end of its travel, namely in the upper part and in the lower part of the display sector, these detectors being connected to means of enslavement controlling the winding and unwinding of the canvases. An embodiment of the present invention will be described hereinafter by way of nonlimiting example, with reference to the appended drawing, in which: FIG. 1 is a schematic sectional view along the line II of FIG. , a billboard

multimessages according to the invention.

  FIG. 2 is a schematic vertical sectional view of the display panel shown in FIG.

line II-II thereof.

  Figures 3 and 4 are schematic views of different types of display obtained with the panel

  display of multimedia messages according to the invention.

  FIG. 5 is a partial view on a larger scale of a tension bar and guide means according to a mode

implementation of the invention.

  FIG. 6 is a partial view of one end of a tension bar, constituting a variant of implementation

of the invention.

  In FIG. 1, the display panel consists of a box 1 of parallelepipedal shape provided on its front part with five openings 2a, 2b, 2c, 2d, 2e, delimiting five respective display sectors 3 a, 3b, 3c, 3d, 3e In the embodiment shown by way of non-limiting example, the two upper sectors namely the left sector 3a and the right sector 3b and the two sectors

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  lower, namely the left sector 3 d and the right sector 3 e are square The median display area 3 c is rectangular in shape and extends over the entire width of the

box 1.

  The arrangement of the upper left part of the box 1 corresponding to the display sector 3a will be described below. The device associated with this display sector thus comprises three fabric storage cylinders 5a, 5a and 5a, respectively. "which are held horizontally by supports connected to caisson 1, not shown in the drawing, and

  extend over a little less than half a width of the box 1.

  Each of these cylinders is provided with an electric drive motor, preferably a tubular motor-geared type motor integrated into the cylinder. This motor is controlled in rotation, in both directions, by servo-control means of any known type. Represented in the drawing of the return rollers, respectively 7a, 7a ', 7a "are associated with each of the storage cylinders and are arranged parallel thereto Canvas 8a, 8a', 8a", by vinyl example, each having the sign or the message that is desired to be displayed in the display sector 3a, are respectively wound on each of the cylinders 5a, a ', 5a "Each canvas passes on the roll of recall 7a, 7a ', 7a "associated with it, to then be maintained in vertical tension by the roller under the action of a respective tension bar 9a, 9a', 9a" Three lamps to discharge 11 ensure the illumination of the transparent fabric

  found tense in the display area 3 a.

  Under these conditions, when one rotates one of the three storage cylinders 5a, 5a ', 5a "in the direction

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  the unwinding of the fabric 8a, 8a ', 8a "that it supports, (the counterclockwise direction in Figure 2), this fabric, maintained in vertical tension by the tension bar 9a 9a ', 9a "goes down to fill the display sector 3a, and the message carried on it (for example a green arrow as shown in Figure 1), illuminated by the lamps 11 becomes transparent visible users. If the fabric closest to the window 2a of the sector 3a (the fabric 8a "in FIGS. 1 and 2) bears no indication, the user will have the possibility, if he considers it desirable, before exchange the webs 8a and 8a ', hide the display area 3a with the help of the cloth 8a ", so that the user will not risk being disturbed by the abrupt passage from one sign to another, which improves security. The other display sectors are of identical structure and are provided with a number of storage cylinders and voltage rollers associated with the number of different signs that are to be used in a given display sector, and their arrangement. and their operation is in all respects identical to that corresponding to the sector

  display 3 has previously described.

  FIGS. 3 and 4 show, in a purely indicative and nonlimiting manner, examples of combinations of displays that can be obtained using the

  billboard according to the invention.

  As shown in FIG. 5, it is possible to improve the guiding of the various tension bars 9 during their ascending and descending movements, by using rods

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  12 of the guide bars 12 are fixed vertically to the upper and lower portions of the corresponding display sectors. The ends of the tension bars 9 are provided with orifices 13 in which the guide rods 12 engage. These guide rods 12 may be common to all tension bars 9 which are arranged in the same vertical plane It is also possible, particularly when the guide rods 12 pass through a wider display sector (such as, for example, the median display sector 3c), to replace the rods 12 by means of transparent wires or cables, stretched between the upper parts and

  bottom of display sectors or box 1.

  As shown in FIG. 6, the orifice 13 is in communication with the end of the tension bar 9 by an outwardly flaring V-shaped lumen 20, whose walls are slightly curved so as to allow the force introduction of the guide rod 12 into the orifice

13 through the light 20.

  Stopping of the driving motor of the storage rolls 5 can be obtained, both in the wound position (upper position of the tension bars 9) and in the deployed position (lower position of the tension bars 9) by detectors, constituted here by microswitches 19 (FIG. 5) which are arranged under the respective tension bars 9 to stop the movement of the fabric downwards and above the tension bars 9 to stop the

upward movement of it.

  In a simplified embodiment of the invention, the display panel may of course consist of a single display sector comprising a number

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  given storage cylinders each equipped with a fabric, the latter then comprising a particular series of messages, distributed in zones determined so as to

constitute a multimedia message.

Claims (7)

  1. Multi-message display panel in which the messages to be displayed are carried by a web (8a, 8a ', 8a ") transparent to the light rays emitted by a light source (11) disposed behind the fabric (8a, 8 a ', 8 a "), characterized in that it comprises at least one display sector (3 a, 3 b, 3 c, 3 d, 3 e), each display sector (3 a, 3 b, 3c, 3d, 3e) being provided with at least one fabric storage cylinder (5a, 5a ', 5a "), extending across the width of the display sector (3a , 3b, 3c, 3d, 3e)), on which is wound the fabric (8a, 8a ', 8a "), to each storage cylinder (5a, 5a', 5a") ) is associated with a return roller (7a, 7a ', 7a ") which is parallel to it and which is arranged at the upper part of the display sector (3a, 3b, 3c, 3d, 3 e), the fabric (8a, 8a ', 8a ") issuing from the storage cylinder (5a, 5a', 5a") covers the return roller (7a, 7a ', 7a "). ) to extend beyond it, vertically under the action of the weight of a tension bar (9a, 9a ', 9a "), so that the fabric (8a, 8a', 8a") is able to occupy two positions of use, namely a first position, or display position, in which it is deployed in the display sector (3a, 3b, 3c, 3d, 3e), and a second position, or retracted position, in which she is   wound on the storage cylinder (5a, 5a ', 5a ").   2. Display panel according to claim 1 characterized in that the tension bar (9a, 9a ', 9a ")   comprises vertical guiding means (12, 13).   3. Display panel according to claim 2 characterized in that the tension bar (9a, 9a ', 9a ") has at its respective ends vertical orifices (13) intended to receive, sliding, the elements vertical guide means (12). 4. Billboard according to claim 3 characterized in that the guide elements are constituted rigid rods (12).   5. Billboard according to claim 3 characterized in that the guide elements are constituted   cables or transparent wires stretched.   6. Panel according to claim 4 or 5 characterized in that the end of the tension bar (9) comprises an outwardly flaring V-shaped lumen (20) whose walls are slightly convexly curved. to allow force introduction of the guide rod (12) into   the orifice (13) through the lumen (20).   7. Billboard following any of the   preceding claims characterized in that it comprises   detectors (19) of high and low end of stroke   triggerable by the voltage bars (9a, 9a ', 9a ").