EP0253033A1 - Display of the curtain type - Google Patents

Display of the curtain type Download PDF

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Publication number
EP0253033A1
EP0253033A1 EP86401571A EP86401571A EP0253033A1 EP 0253033 A1 EP0253033 A1 EP 0253033A1 EP 86401571 A EP86401571 A EP 86401571A EP 86401571 A EP86401571 A EP 86401571A EP 0253033 A1 EP0253033 A1 EP 0253033A1
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EP
European Patent Office
Prior art keywords
strip
roller
rollers
display
visual information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86401571A
Other languages
German (de)
French (fr)
Other versions
EP0253033B1 (en
Inventor
Fabrice Grehan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WORLD ACRILUX SA
Original Assignee
WORLD ACRILUX SA
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
Priority to FR8500594A priority Critical patent/FR2576128B1/en
Application filed by WORLD ACRILUX SA filed Critical WORLD ACRILUX SA
Priority to DE8686401571T priority patent/DE3683771D1/en
Priority to AT86401571T priority patent/ATE72353T1/en
Priority to EP86401571A priority patent/EP0253033B1/en
Publication of EP0253033A1 publication Critical patent/EP0253033A1/en
Application granted granted Critical
Publication of EP0253033B1 publication Critical patent/EP0253033B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F11/24—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies
    • G09F11/29—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F2011/0009—Roller-band displays
    • G09F2011/0072—Methods of keeping tensioned a roller-band

Definitions

  • the present invention relates to a strip display comprising a strip carrying a series of visual information and stretched between two rolls on which it is wound and driven synchronously, and a display device comprising several strip displays, in particular for the automatic display of oil prices.
  • Displays are known carrying only a single visual information carried by a removable fixed plate in a housing in which are arranged lighting means. With such a display, the change of information must be done manually.
  • strip displays comprising a strip wound on two rollers driven by a double clutch device cooperating either with one or with the other of the rollers.
  • Such a display requires the presence of moving parts and therefore a large footprint and cost.
  • the tension of the strip is not guaranteed whatever the position of the strip.
  • the invention therefore relates to a strip display comprising a strip carrying a series of visual information and stretched between two rollers on which it is wound, the rollers being mounted parallel to rotate in a chassis, and spaced at least the length of strip occupied by visual information, and a synchronous drive mechanism for the two rollers, characterized in that the drive mechanism comprises a toothed belt or chain driven by a motor and cooperating with a first toothed pulley locked in rotation on the first roller and a second toothed pulley mounted idly on the second roller and connected to the latter by elastic means of compensating for the tension of the strip as a function of the variation of the diameters of the rollers resulting from the winding of the strip.
  • the elastic means consist of a spiral spring coaxial with the second roller.
  • the invention relates to a strip display as defined above and the positioning of which is automatic by remote control.
  • the strip carries indications each corresponding to visual information carried by the strip are intended for controlling the position of the strip.
  • the strip carries as many marks as there are indications and intended, by comparison of the indication corresponding to the image to be displayed with the indication corresponding to the displayed image and by counting marks, for positioning the strip.
  • the invention also relates to a display device characterized in that it comprises a series of strip displays according to the invention, arranged in a common housing.
  • Figure 1 shows a strip display comprising a frame consisting of a first and second side plates 2 connected together by two rear plates 3a for fixing the display on a support or in a housing (not shown) and a front plate 3b (partially shown).
  • the first roller 5 is arranged in the vicinity of the upper end of the chassis, the shaft 4 projecting outwards from the second side plate.
  • the second roller 9 is arranged in the vicinity of the lower end of the chassis, the two shafts 4, 8 being parallel.
  • the strip is stretched in the vicinity of the front edges of the side plates 2 by means of two positioning rollers 13 mounted idly on shafts 14 fixed on the frame above the first roller and at the below the second roll respectively.
  • lighting means are arranged inside the chassis 1 behind the strip 12, the strip sections carrying the information being transparent, translucent or fluorescent for the purpose of night-time operation.
  • the strip carries marks 15, the counting of which by one of the detection means 16, intended to be connected to a data processing circuit (not shown) and carried by an angled rim of the plate 3b, during the movement of the strip, allows the positioning of the strip for particular visual information to be displayed.
  • the strip also carries indications 17 intended for monitoring the state of the strip and for its positioning and detected by the other detection means 16.
  • these detection means 16 can be constituted by infrared cells arranged above the first roll, the marks and indications being located on the strip above each visual information.
  • a drive mechanism 18 for the rollers comprises an electric motor 19 fixed inside the chassis on the second side plate 2.
  • the axis of rotation of the motor is parallel to the shafts of the rollers 5 and 9 and projects outwards from this side plate.
  • a toothed drive wheel 20 is wedged on the part of the projecting shaft and cooperates with a toothed belt 21.
  • This toothed belt also cooperates with a first toothed pulley 22 wedged on the shaft 4 of the first roller, a second pulley toothed 23 mounted madly on the shaft 8 of the second roller and two idler rollers 24 rotatably mounted on this side plate and located on either side of the first toothed pulley so as to maintain a sufficient grip of the belt on this pulley.
  • the second pulley 23 is connected to the shaft 8 by means of elastic means and in the present example by a spiral spring 25 housed in a housing 26 formed in the pulley.
  • the spiral spring 25 is fixed by one of its ends to the peripheral wall 27 of the housing 26 and by its other end in a notch 28 of the shaft 8.
  • This spiral spring 25 is intended to compensate for the tension of the strip 12 as a function of the variation in the diameters of the rollers driven synchronously, resulting from the winding of the strip.
  • FIG. 4 represents a curve of variation of the length of strip to be compensated (or of the resistance opposed by the spiral spring which is there proportional) as a function of the position of the strip or of the difference in the winding diameters of the two rollers, these rollers having the same diameter when empty.
  • the curve describes a parabola and goes through a minimum when displaying the middle of the strip, the two rollers then having the same winding diameter.
  • the length of strip to be compensated increases on either side of this midpoint due to the variation of the difference between the diameters of the rollers as shown in Figure 4 below the position of the strip shown as d 'example by numbers from zero to nine symbolizing visual information regularly spaced on the tape.
  • the spiral spring has a minimum reserve tension at the midpoint.
  • the number of revolutions of the roller 5 progressively goes from 2, 8 (information 0) to 3.2 (information 9); at the same time, that of the roll 9 passes from 3, 2 to 2, 8, the compensation between the two rollers being ensured by the action of the spiral spring which also maintains a substantially constant tension of the strip 12.
  • FIG. 5 represents a block diagram of a device for controlling a strip display according to the invention which can be adjusted from coding wheels 30 intended to be placed at a distance from the display.
  • the encoder wheels 30 are connected to a reading and validation circuit 31 itself connected to a conventional data processing circuit 32, for example a programmable controller.
  • the detection means 16 for example infrared cells, which detect, during their passage, the marks 15 or studs and the indications 17 of the position of the strip, are also connected to the circuit 32 of the data processing.
  • the marks and indications are located above each item of information so that they are located opposite the detection means when the corresponding image is displayed.
  • An output of the circuit 32 is connected to the electric motor 19 via an adaptation interface (not shown).
  • the reading and validation circuit When the reading and validation circuit is commanded, it sends to the data processing circuit the value X of the coding wheels corresponding to the information to be displayed.
  • the circuit 32 then receives detection means, the value Y corresponding to the information displayed and given by the indications 17, for example in BCD code.
  • the circuit 32 performs the comparison of the two values and controls the motor to advance the strip of X-Y information, by counting the marks by means of the detection means, or to make it move back according to the sign of X-Y.
  • the circuit 32 can then carry out a second verification comparison.
  • displays of reduced cost and low bulk it is possible to produce a display panel comprising a series of displays and control the display remotely.
  • a particular application of these displays is the display of petroleum prices, the order of which can be carried out in parallel with that of the display of the price at the pump.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

A display (12) comprises a curtain carrying a series of visual messages, stretched between two rollers (5, 9) around which it is wound, the rollers being rotatably mounted in parallel in a frame (1), and a synchronous drive mechanism (18) for the two rollers. The drive mechanism comprises a toothed belt or chain (21) driven by a motor (19) and interacting with a first toothed pulley (22) which is keyed in rotation on the first roller (5) and a second toothed pulley (23) mounted idly on the second roller (9) to which it is connected by elastic means (25) which compensate the curtain tension as a function of the varying diameter of the roller caused by the winding of the curtain. <IMAGE>

Description

La présente invention concerne un afficheur à bande comprenant une bande portant une série d'in­formations visuelles et tendue entre deux rouleaux sur lesquels elle s'enroule et entraînés de manière syn­chrone, et un dispositif d'affichage comportant plu­sieurs afficheurs à bandes, notamment pour l'affichage automatique de prix pétroliers.The present invention relates to a strip display comprising a strip carrying a series of visual information and stretched between two rolls on which it is wound and driven synchronously, and a display device comprising several strip displays, in particular for the automatic display of oil prices.

On connait des afficheurs ne portant qu'une seule information visuelle portée par une plaque fixée amovible dans un boîtier dans lequel sont disposés des moyens d'éclairage. Avec un tel afficheur le change­ment d'information doit être effectué manuellement.Displays are known carrying only a single visual information carried by a removable fixed plate in a housing in which are arranged lighting means. With such a display, the change of information must be done manually.

On connait également des afficheurs compor­tant une série de diodes électroluminescentes permet­tant un certain nombre de combinaisons correspondant à autant d'informations visuelles. Ces afficheurs ont un coût élevé.There are also known displays comprising a series of light-emitting diodes allowing a certain number of combinations corresponding to as much visual information. These displays have a high cost.

On connait enfin des afficheurs à bande com­prenant une bande enroulée sur deux rouleaux entraînés par un dispositif à double embrayage coopérant soit avec l'un soit avec l'autre des rouleaux. Un tel affi­cheur nécessite la présence de pièces en mouvement et donc un encombrement et un coût importants. De plus la tension de la bande n'est pas assurée quelle que soit la position de la bande.Finally, strip displays are known comprising a strip wound on two rollers driven by a double clutch device cooperating either with one or with the other of the rollers. Such a display requires the presence of moving parts and therefore a large footprint and cost. In addition, the tension of the strip is not guaranteed whatever the position of the strip.

L'invention a donc pour objet un afficheur à bande comprenant une bande portant une série d'infor­mations visuelles et tendue entre deux rouleaux sur lesquels elle s'enroule, les rouleaux étant montés pa­rallèles à rotation dans un châssis, et espacés d'au moins la longueur de bande occupée par une information visuelle, et un mécanisme d'entraînement synchrone des deux rouleaux, caractérisé en ce que le mécanisme d'entraînement comprend une courroie crantée ou chaîne entrainée par un moteur et coopérant avec une première poulie dentée calée en rotation sur le premier rouleau et une deuxième poulie dentée montée folle sur le second rouleau et reliée à celui-ci par des moyens élastiques de compensation de la tension de la bande en fonction de la variation des diamètres des rouleaux résultant de l'enroulement de la bande.The invention therefore relates to a strip display comprising a strip carrying a series of visual information and stretched between two rollers on which it is wound, the rollers being mounted parallel to rotate in a chassis, and spaced at least the length of strip occupied by visual information, and a synchronous drive mechanism for the two rollers, characterized in that the drive mechanism comprises a toothed belt or chain driven by a motor and cooperating with a first toothed pulley locked in rotation on the first roller and a second toothed pulley mounted idly on the second roller and connected to the latter by elastic means of compensating for the tension of the strip as a function of the variation of the diameters of the rollers resulting from the winding of the strip.

Avantageusement les moyens élastiques sont constitués par un ressort spiral coaxial au deuxième rouleau.Advantageously, the elastic means consist of a spiral spring coaxial with the second roller.

En particulier, l'invention a pour objet un afficheur à bande tel que défini ci-dessus et dont le positionnement est automatique par commande à distan­ce.In particular, the invention relates to a strip display as defined above and the positioning of which is automatic by remote control.

Avantageusement la bande porte des indica­tions correspondant chacune à une information visuelle portée par la bande est destinées au contrôle de position de la bande.Advantageously, the strip carries indications each corresponding to visual information carried by the strip are intended for controlling the position of the strip.

Avantageusement la bande porte autant de re­pères que d'indications et destinés, par comparaison de l'indication correspondant à l'image à afficher avec l'indication correspondant à l'image affichée et par comptage des repères, au positionnement de la ban­de.Advantageously, the strip carries as many marks as there are indications and intended, by comparison of the indication corresponding to the image to be displayed with the indication corresponding to the displayed image and by counting marks, for positioning the strip.

L'invention a également pour objet un dispo­sitif d'affichage caractérisé en ce qu'il comporte une série d'afficheurs à bande selon l'invention, disposés dans un boîtier commun.The invention also relates to a display device characterized in that it comprises a series of strip displays according to the invention, arranged in a common housing.

L'invention sera mieux comprise à l'aide de la description qui va suivre, donnée uniquement à ti­tre d'exemple et faite en se référant aux dessins annexés sur lesquels :

  • - la Figure 1 est une vue de face partiel­lement en coupe d'un afficheur à bande selon l'inven­ tion;
  • - la Figure 2 est une vue de côté de l'af­ficheur de la Figure 1 montrant en détail le mécanisme d'entraînement de la bande;
  • - la Figure 3 est une vue en coupe de l'af­ficheur suivant la ligne III-III de la Figure 1;
  • - la Figure 4 est une courbe représentant la compensation de la tension en fonction des variations des diamètres d'enroulement pour un afficheur particu­lier;
  • - la Figure 5 est un synoptique du disposi­tif de commande de l'afficheur selon l'invention.
The invention will be better understood with the aid of the description which follows, given solely by way of example and made with reference to the appended drawings in which:
  • - Figure 1 is a partially sectioned front view of a strip display according to the invention tion;
  • - Figure 2 is a side view of the display of Figure 1 showing in detail the belt drive mechanism;
  • - Figure 3 is a sectional view of the display along line III-III of Figure 1;
  • - Figure 4 is a curve representing the voltage compensation as a function of variations in winding diameters for a particular display;
  • - Figure 5 is a block diagram of the display control device according to the invention.

La Figure 1 représente un afficheur à bande comportant un châssis composé d'une première et deu­xième plaques latérales 2 reliées entre elles par deux plaques arrières 3a de fixation de l'afficheur sur un support ou dans un boîtier (non représenté) et une plaque avant 3b (partiellement représentée).Figure 1 shows a strip display comprising a frame consisting of a first and second side plates 2 connected together by two rear plates 3a for fixing the display on a support or in a housing (not shown) and a front plate 3b (partially shown).

Un premier arbre 4, sur lequel est câlé un premier rouleau 5, est monté à rotation, à une de ses extrémités, dans un palier 6 monté sur la première plaque latérale 2 et, au voisinage de son extrémité opposée, dans un autre palier 7 monté sur la deuxième plaque latérale. Le premier rouleau 5 est disposé au voisinage de l'extrémité supérieure du châssis, l'ar­bre 4 faisant saillie vers l'extérieur de la deuxième plaque latérale.A first shaft 4, on which a first roller 5 is wired, is mounted to rotate, at one of its ends, in a bearing 6 mounted on the first side plate 2 and, in the vicinity of its opposite end, in another bearing 7 mounted on the second side plate. The first roller 5 is arranged in the vicinity of the upper end of the chassis, the shaft 4 projecting outwards from the second side plate.

Un deuxième arbre 8, sur lequel est câlé un deuxième rouleau 9, est monté à rotation dans deux pa­liers 10, 11 de la même manière que le premier arbre 4 et fait saillie vers l'extérieur de la deuxième plaque latérale.A second shaft 8, on which a second roller 9 is wired, is rotatably mounted in two bearings 10, 11 in the same manner as the first shaft 4 and projects outwards from the second side plate.

Le deuxième rouleau 9 est disposé au voisi­nage de l'extrémité inférieure du châssis, les deux arbres 4, 8 étant parallèles.The second roller 9 is arranged in the vicinity of the lower end of the chassis, the two shafts 4, 8 being parallel.

Une bande 12, portant une série d'informa­tions visuelles (non representées) sur toute sa lon­gueur L, est tendue entre les deux rouleaux 5, 9 sur lesquels elle s'enroule de manière que la partie de bande située entre les deux rouleaux soit située vers l'avant du châssis. Comme on peut mieux le voir sur la Figure 3, la bande est tendue au voisinage des bords avants des plaques latérales 2 au moyen de deux galets de positionnement 13 montés fous sur des arbres 14 fixés sur le châssis au-dessus du premier rouleau et au-dessous du deuxième rouleau respectivement.A strip 12, carrying a series of visual information (not shown) over its entire length L, is stretched between the two rollers 5, 9 on which it is wound so that the strip portion located between the two rollers is located towards the front of the chassis. As can best be seen in Figure 3, the strip is stretched in the vicinity of the front edges of the side plates 2 by means of two positioning rollers 13 mounted idly on shafts 14 fixed on the frame above the first roller and at the below the second roll respectively.

Avantageusement, des moyens d'éclairage (non representés) sont disposés à l'intérieur du châssis 1 derrière la bande 12, les sections de bande portant les informations étant transparentes, translucides ou fluorescentes dans le but d'un fonctionnement de nuit.Advantageously, lighting means (not shown) are arranged inside the chassis 1 behind the strip 12, the strip sections carrying the information being transparent, translucent or fluorescent for the purpose of night-time operation.

Comme on peut le voir sur la Figure 1, la bande porte des repères 15 dont le comptage par un des moyens de détection 16, destinés à être reliés à un circuit de traitement de données (non représenté) et portés par un rebord en équerre de la plaque 3b, lors du déplacement de la bande, permet le positionnement de la bande pour une information visuelle particulière à afficher. La bande porte également des indications 17 destinées au contrôle d'état de la bande et à son positionnement et détectées par les autres moyens de détection 16.As can be seen in FIG. 1, the strip carries marks 15, the counting of which by one of the detection means 16, intended to be connected to a data processing circuit (not shown) and carried by an angled rim of the plate 3b, during the movement of the strip, allows the positioning of the strip for particular visual information to be displayed. The strip also carries indications 17 intended for monitoring the state of the strip and for its positioning and detected by the other detection means 16.

Dans ce mode de réalisation particulier, ces moyens de détection 16 peuvent être constitués par des cellules à infra-rouge disposés au-dessus du premier rouleau, les repères et indications étant situés sur la bande au-dessus de chaque information visuelle.In this particular embodiment, these detection means 16 can be constituted by infrared cells arranged above the first roll, the marks and indications being located on the strip above each visual information.

Le fonctionnement du dispositif de commande de l'afficheur sera décrit plus en détail en référence à la Figure 5.Operation of the control device of the display will be described in more detail with reference to Figure 5.

Comme représenté sur les Figures 1 et 2, un mécanisme d'entrainement 18 des rouleaux comprend un moteur électrique 19 fixé à l'intérieur du châssis sur la deuxième plaque latérale 2.As shown in FIGS. 1 and 2, a drive mechanism 18 for the rollers comprises an electric motor 19 fixed inside the chassis on the second side plate 2.

L'axe de rotation du moteur est parallèle aux arbres des rouleaux 5 et 9 et fait saillie vers l'extérieur de cette plaque latérale. Une roue dentée d'entraînement 20 est calée sur la partie de l'arbre en saillie et coopère avec une courroie crantée 21. Cette courroie crantée coopère également avec une première poulie dentée 22 calée sur l'arbre 4 du premier rouleau, une deuxième poulie dentée 23 montée folle sur l'arbre 8 du deuxième rouleau et deux galets de renvoi 24 montés à rotation sur cette plaque laté­rale et situés de part et d'autre de la première poulie dentée de manière à maintenir une prise suffisante de la courroie sur cette poulie.The axis of rotation of the motor is parallel to the shafts of the rollers 5 and 9 and projects outwards from this side plate. A toothed drive wheel 20 is wedged on the part of the projecting shaft and cooperates with a toothed belt 21. This toothed belt also cooperates with a first toothed pulley 22 wedged on the shaft 4 of the first roller, a second pulley toothed 23 mounted madly on the shaft 8 of the second roller and two idler rollers 24 rotatably mounted on this side plate and located on either side of the first toothed pulley so as to maintain a sufficient grip of the belt on this pulley.

La deuxième poulie 23 est reliée à l'arbre 8 par l'intermédiaire de moyens élastiques et dans le présent exemple par un ressort spirale 25 logé dans un logement 26 ménagé dans la poulie. Le ressort spiral 25 est fixé par une de ses extrémités à la paroi péri­phérique 27 du logement 26 et par son autre extrémité dans une encoche 28 de l'arbre 8.The second pulley 23 is connected to the shaft 8 by means of elastic means and in the present example by a spiral spring 25 housed in a housing 26 formed in the pulley. The spiral spring 25 is fixed by one of its ends to the peripheral wall 27 of the housing 26 and by its other end in a notch 28 of the shaft 8.

Ce ressort spiral 25 est destiné à la com­pensation de la tension de la bande 12 en fonction de la variation des diamètres des rouleaux entraînés de manière synchrone, résultant de l'enroulement de la bande.This spiral spring 25 is intended to compensate for the tension of the strip 12 as a function of the variation in the diameters of the rollers driven synchronously, resulting from the winding of the strip.

La Figure 4 représente une courbe de va­riation de la longueur de bande à compenser (ou de la résistance opposée par le ressort spiral qui y est proportionnelle) en fonction de la position de la bande ou de l'écart des diamètres d'enroulement des deux rouleaux, ces rouleaux ayant le même diamètre à vide.FIG. 4 represents a curve of variation of the length of strip to be compensated (or of the resistance opposed by the spiral spring which is there proportional) as a function of the position of the strip or of the difference in the winding diameters of the two rollers, these rollers having the same diameter when empty.

Comme on peut le voir sur la Figure 4, la courbe décrit une parabole et passe par un minimum lorsque l'on affiche le milieu de la bande, les deux rouleaux ayant alors le même diamètre d'enroulement. La longueur de bande à compenser augmente de part et d'autre de ce point milieu en raison de la variation de l'écart entre les diamètres des rouleaux comme indiqué sur la Figure 4 au-dessous de la position de la bande représentée à titre d'exemple par des chif­fres de zéro à neuf symbolisant des informations visuelles espacées régulièrement sur la bande.As can be seen in Figure 4, the curve describes a parabola and goes through a minimum when displaying the middle of the strip, the two rollers then having the same winding diameter. The length of strip to be compensated increases on either side of this midpoint due to the variation of the difference between the diameters of the rollers as shown in Figure 4 below the position of the strip shown as d 'example by numbers from zero to nine symbolizing visual information regularly spaced on the tape.

Pour réaliser cette courbe, on a pris à tit­tre d'exemple une bande de 6 m avec un pas des in­formations d'environ 50 cm. Le diamètre de chaque rouleau varie de 41 mm à 46 mm et inversement à celui de l'autre rouleau.To achieve this curve, we took as an example a 6 m strip with an information pitch of about 50 cm. The diameter of each roller varies from 41 mm to 46 mm and vice versa to that of the other roller.

Le ressort spiral a une tension minimale de réserve au point milieu. Lorsque l'on passe de chaque information à la suivante, le nombre de tours du rou­leau 5 passe progressivement de 2, 8 (information 0) à 3,2 (information 9); dans le même temps , celui du rou­leau 9 passe de 3, 2 à 2, 8, la compensation entre les deux rouleaux étant assurée par l'action du ressort spiral qui maintient en plus une tension sensiblement constante de la bande 12.The spiral spring has a minimum reserve tension at the midpoint. When going from each information to the next, the number of revolutions of the roller 5 progressively goes from 2, 8 (information 0) to 3.2 (information 9); at the same time, that of the roll 9 passes from 3, 2 to 2, 8, the compensation between the two rollers being ensured by the action of the spiral spring which also maintains a substantially constant tension of the strip 12.

La Figure 5 représente un synoptique d'un dispositif de commande d'un afficheur à bande selon l'invention pouvant être réglé à partir de roues codeuses 30 destinées à être placées à distance de l'afficheur.FIG. 5 represents a block diagram of a device for controlling a strip display according to the invention which can be adjusted from coding wheels 30 intended to be placed at a distance from the display.

Les roues codeuses 30 sont reliées à un cir­cuit de lecture et de validation 31 lui-même connecté à un circuit de traitement de données 32 classiques, par exemple un automate programmable. Les moyens de détection 16, par exemple des cellules à infra-rouge, qui détectent, lors de leur passage, les repères 15 ou plots et les indications 17 de la position de la bande, sont également connectés au circuit 32 du traitement de données. Les repères et indications sont situés au-dessus de chaque information de sorte qu'ils se trouvent en regard des moyens de détection lorsque l'image correspondante est affichée.The encoder wheels 30 are connected to a reading and validation circuit 31 itself connected to a conventional data processing circuit 32, for example a programmable controller. The detection means 16, for example infrared cells, which detect, during their passage, the marks 15 or studs and the indications 17 of the position of the strip, are also connected to the circuit 32 of the data processing. The marks and indications are located above each item of information so that they are located opposite the detection means when the corresponding image is displayed.

Une sortie du circuit 32 est reliée au mo­teur électrique 19 par l'intermédiaire d'une interface d'adaptation (non representée). Lorsque le circuit de lecture et de validation est commandé, il envoie au circuit de traitement de données la valeur X des roues codeuses correspondant à l'information à afficher. Le circuit 32 reçoit ensuite des moyens de détection, la valeur Y correspondant à l'information affichée et donnée par les indications 17, par exemple en code BCD.An output of the circuit 32 is connected to the electric motor 19 via an adaptation interface (not shown). When the reading and validation circuit is commanded, it sends to the data processing circuit the value X of the coding wheels corresponding to the information to be displayed. The circuit 32 then receives detection means, the value Y corresponding to the information displayed and given by the indications 17, for example in BCD code.

Le circuit 32 effectue la comparaison des deux valeurs et commande le moteur pour faire avancer la bande de X-Y informations, par comptage des repères par l'intermédiaire des moyens de détection, ou la faire reculer selon le signe de X-Y. Le circuit 32 peut effectuer ensuite une seconde comparaison de vérification. Avec de tels afficheurs de coût réduit et d'encombrement faible, on peut réaliser un panneau d'affichage comportant une série d'afficheurs et com­mander l'affichage à distance. Une application par­ticulière de ces afficheurs est l'affichage des prix pétroliers dont la commande peut être effectuée en parallèle avec celle de l'affichage du prix à la pom­pe.The circuit 32 performs the comparison of the two values and controls the motor to advance the strip of X-Y information, by counting the marks by means of the detection means, or to make it move back according to the sign of X-Y. The circuit 32 can then carry out a second verification comparison. With such displays of reduced cost and low bulk, it is possible to produce a display panel comprising a series of displays and control the display remotely. A particular application of these displays is the display of petroleum prices, the order of which can be carried out in parallel with that of the display of the price at the pump.

Claims (5)

1 - Afficheur à bande (12) comprenant une bande portant une série d'informations visuelles et tendue entre deux rouleaux (5, 9) sur lesquels elle s'enroule, les rouleaux étant montés parallèles à rotation dans un châssis (1), et espacés d'au moins la longeur de bande occupée par une information visuel­le, et un mécanisme d'entraînement synchrone (18) des deux rouleaux, le mécanisme d'entraînement comprenant une courroie crantée ou chaîne (21) entraînée par un moteur (19) et coopérant avec une première poulie dentée (22) calée en rotation sur le premier rouleau (5) et une deuxième poulie dentée (23) montée folle sur le second rouleau (9) et reliée à celui-ci par des moyens élastiques (25) de compensation de la tension de la bande en fonction de la variation du diamètre du rouleau résultant de l'enroulement de la bande, les moyens élastiques étant constitués par un ressort spiral (25) coaxial au deuxième rouleau, caractérisé en ce que ledit ressort spiral est disposé dans un logement (26) ménagé dans la deuxième poulie et fixé d'une part à l'arbre du deuxième rouleau (9) et d'autre part, à la surface périphérique du logement.1 - Strip display (12) comprising a strip carrying a series of visual information and stretched between two rollers (5, 9) on which it is wound, the rollers being mounted for rotation in parallel in a chassis (1), and spaced at least the strip length occupied by visual information, and a synchronous drive mechanism (18) of the two rollers, the drive mechanism comprising a toothed belt or chain (21) driven by a motor (19) and cooperating with a first toothed pulley (22) locked in rotation on the first roller (5) and a second toothed pulley (23) mounted idly on the second roller (9) and connected to the latter by elastic means (25) for compensating the tension of the strip as a function of the variation in the diameter of the roller resulting from the winding of the strip, the elastic means being constituted by a spiral spring (25) coaxial with the second roller, characterized in that said spiral spring is arranged in a housing (26 ) formed in the second pulley and fixed on the one hand to the shaft of the second roller (9) and on the other hand, to the peripheral surface of the housing. 2 - Afficheur selon la revendication 1, caractérisé en ce que le mécanisme d'entraînement (18) est placé sur une des plaques latérales (2) du châssis et en ce que des moyens d'éclairage sont disposés à l'intérieur du châssis en regard de la face de la bande ne portant pas les informations visuelles.2 - Display according to claim 1, characterized in that the drive mechanism (18) is placed on one of the side plates (2) of the frame and in that lighting means are arranged inside the frame in look of the face of the strip not carrying the visual information. 3 - Afficheur selon l'une quelconque des revendications précédentes, caractérisé en ce que la bande porte des indications (17) correspondant chacune à une information visuelle portée par la bande et destinées au contrôle de position de la bande par l'intermédiaire des moyens de détection (16).3 - Display according to any one of the preceding claims, characterized in that the strip carries indications (17) each corresponding to visual information carried by the strip and intended for controlling the position of the strip by through the detection means (16). 4 - Afficheur selon la revendication 3, ca­ractérisé en ce que la bande porte autant de repères (15) que d'indications, destinés, par l'intermédiaire des moyens de détection (16) et de moyens (32) de comptage des repères et de comparaison de l'indication correspondant à l'image à afficher avec l'indication correspondant à l'image affichée, au positionnement de la bande.4 - Display according to claim 3, characterized in that the strip carries as many marks (15) as indications, intended, by means of detection means (16) and means (32) of counting marks and for comparing the indication corresponding to the image to be displayed with the indication corresponding to the image displayed, in positioning the strip. 5 - Dispositif d'affichage caractérisé en ce qu'il comporte une série d'afficheurs à bande selon l'une quelconque des revendications précédentes, dis­posés dans un boîtier commun.5 - Display device characterized in that it comprises a series of strip displays according to any one of the preceding claims, arranged in a common housing.
EP86401571A 1985-01-16 1986-07-15 Display of the curtain type Expired - Lifetime EP0253033B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8500594A FR2576128B1 (en) 1985-01-16 1985-01-16 STRIP DISPLAY
DE8686401571T DE3683771D1 (en) 1986-07-15 1986-07-15 TAPE DISPLAY DEVICE.
AT86401571T ATE72353T1 (en) 1986-07-15 1986-07-15 TAPE DISPLAY DEVICE.
EP86401571A EP0253033B1 (en) 1986-07-15 1986-07-15 Display of the curtain type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86401571A EP0253033B1 (en) 1986-07-15 1986-07-15 Display of the curtain type

Publications (2)

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EP0253033A1 true EP0253033A1 (en) 1988-01-20
EP0253033B1 EP0253033B1 (en) 1992-01-29

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EP86401571A Expired - Lifetime EP0253033B1 (en) 1985-01-16 1986-07-15 Display of the curtain type

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EP (1) EP0253033B1 (en)
AT (1) ATE72353T1 (en)
DE (1) DE3683771D1 (en)
FR (1) FR2576128B1 (en)

Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP0402494A1 (en) * 1989-06-12 1990-12-19 Innovative Technologies Advertising device
FR2700218A1 (en) * 1993-01-06 1994-07-08 Girosport Advertising hoarding with moving band inside housing
FR2712719A1 (en) * 1993-11-19 1995-05-24 Berri Pub Electronically controlled advertising display panel with rolled display banner
ES2094075A1 (en) * 1993-02-01 1997-01-01 Fabrecor S A Dynamic display of interchangeable signs.
FR2756403A1 (en) * 1996-11-22 1998-05-29 Rba Sarl RIBBON DISPLAY DEVICE
WO1998048399A1 (en) * 1995-10-24 1998-10-29 Itracon Trading & Consulting Gmbh Display device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634900A1 (en) * 1986-10-14 1988-04-21 Andre Kulbach ADVERTISING DRUM
MY111411A (en) * 1993-05-25 2000-04-29 Coates Signco Pty Ltd Display device

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Publication number Priority date Publication date Assignee Title
FR334671A (en) * 1902-09-27 1903-12-29 John Dawson Smith Announcement device
FR688696A (en) * 1930-01-22 1930-08-27 Generare Des Plans Indicateurs Winding and unwinding device
US3803582A (en) * 1972-08-10 1974-04-09 Teleweld Inc Remote-controlled message display system with improved sign positioning means
US4110925A (en) * 1977-03-28 1978-09-05 Minnesota Mining And Manufacturing Company Automatic scroll sign
GB2114355A (en) * 1982-02-03 1983-08-17 Forecourt Support Ltd Adjustable display indicator

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Publication number Priority date Publication date Assignee Title
FR2269761A1 (en) * 1974-05-02 1975-11-28 Sud Ouest Signalisation Adjustable road signalling panel - has screen which is unrolled over panel during sign changing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR334671A (en) * 1902-09-27 1903-12-29 John Dawson Smith Announcement device
FR688696A (en) * 1930-01-22 1930-08-27 Generare Des Plans Indicateurs Winding and unwinding device
US3803582A (en) * 1972-08-10 1974-04-09 Teleweld Inc Remote-controlled message display system with improved sign positioning means
US4110925A (en) * 1977-03-28 1978-09-05 Minnesota Mining And Manufacturing Company Automatic scroll sign
GB2114355A (en) * 1982-02-03 1983-08-17 Forecourt Support Ltd Adjustable display indicator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402494A1 (en) * 1989-06-12 1990-12-19 Innovative Technologies Advertising device
WO1990016055A1 (en) * 1989-06-12 1990-12-27 Innovative Technologies Advertising support
FR2700218A1 (en) * 1993-01-06 1994-07-08 Girosport Advertising hoarding with moving band inside housing
ES2094075A1 (en) * 1993-02-01 1997-01-01 Fabrecor S A Dynamic display of interchangeable signs.
FR2712719A1 (en) * 1993-11-19 1995-05-24 Berri Pub Electronically controlled advertising display panel with rolled display banner
WO1998048399A1 (en) * 1995-10-24 1998-10-29 Itracon Trading & Consulting Gmbh Display device
FR2756403A1 (en) * 1996-11-22 1998-05-29 Rba Sarl RIBBON DISPLAY DEVICE
EP0848367A1 (en) * 1996-11-22 1998-06-17 Roscal S.C.P. Moving band display

Also Published As

Publication number Publication date
EP0253033B1 (en) 1992-01-29
ATE72353T1 (en) 1992-02-15
FR2576128A1 (en) 1986-07-18
FR2576128B1 (en) 1987-07-03
DE3683771D1 (en) 1992-03-12

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