EP0567432B1 - Display device for advertisement pannel and other graphic informations - Google Patents

Display device for advertisement pannel and other graphic informations Download PDF

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Publication number
EP0567432B1
EP0567432B1 EP93810275A EP93810275A EP0567432B1 EP 0567432 B1 EP0567432 B1 EP 0567432B1 EP 93810275 A EP93810275 A EP 93810275A EP 93810275 A EP93810275 A EP 93810275A EP 0567432 B1 EP0567432 B1 EP 0567432B1
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EP
European Patent Office
Prior art keywords
prisms
prism
bearings
display device
rotatable
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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.)
Expired - Lifetime
Application number
EP93810275A
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German (de)
French (fr)
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EP0567432A1 (en
Inventor
Robert Meyer
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Plakatron AG
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Plakatron AG
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Publication of EP0567432A1 publication Critical patent/EP0567432A1/en
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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
    • G09F11/02—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 display elements being secured to rotating members, e.g. drums, spindles
    • G09F11/025—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 display elements being secured to rotating members, e.g. drums, spindles the members being rotated simultaneously, each face of the member carrying a part of the sign

Definitions

  • the invention relates to a display device for posters or other image information with alternating displays, the device consisting of a plurality of triangular prisms arranged parallel to one another and rotatable about their longitudinal axis, these prisms mounted at both ends in a frame, connected on one side to a drive and with interior lighting are equipped and have translucent lateral surfaces, when the information is displayed one of the lateral surfaces of all prisms lies in a common plane and the longitudinal edges of these lateral surfaces abut one another, and each lateral surface of each prism bears a partial area of the image information to be displayed.
  • DE-27 36 866-A1 shows such a device in which a number of triangular prisms are arranged parallel to one another and are supported and supported in a frame.
  • One of the sides of each prism carries part of an overall image, so that a complete image is presented if the prism sides are correctly assigned to one another.
  • the prisms used here are made of aluminum profile, and the information to be displayed in the form of pictures, posters or other picture information is glued to the outer surfaces of these aluminum prisms or applied in a known manner.
  • the prisms are journaled at both ends gerzapfen provided, which are stored in the context of the device.
  • the lower journals are equipped with pinions, which are driven by toothed belts.
  • All prisms are connected to each other via a plurality of toothed belts in such a way that they can all be rotated simultaneously and synchronously around their longitudinal axes with a central drive.
  • Corresponding known devices ensure that the drive is stopped in the desired positions, and then the mating surfaces of all prisms that belong to one another lie in a common plane.
  • Display devices of this type can only be used in daylight or must be illuminated from the outside with light spots. In view of the relatively high cost of such image presentation devices, additional lighting is often desired so that the information can be recognized even in poor daylight or at night.
  • Illuminating the image area from the front is relatively complex, and in many cases the image is unevenly or even incompletely illuminated.
  • image information presented over the entire surface it is already known to mount posters or the like on translucent plates and to backlight them.
  • mount posters or the like on translucent plates and to backlight them.
  • additional optical devices such as mirror surfaces or the like are often necessary.
  • a further display device with rotatable prisms in which the lighting fixtures are arranged inside the prisms. Since the fixtures for the lighting fixtures are also arranged in the prisms, there are considerable difficulties in achieving uniform illumination. To install and remove the lighting fixtures, the prisms have to be disassembled, which results in considerable effort and a complicated mechanical design.
  • Another device with interior lighting is known from FR-A-2 624 293. Here is a fluorescent tube arranged as a lighting element inside a translucent bearing sleeve. This bearing sleeve can significantly disrupt the lighting effect. The installation and removal of the fluorescent tube is only possible in the direction of the longitudinal axis and requires a corresponding additional space next to the device.
  • the invention has for its object to provide a display device for posters or other image information with rotatable prisms, in which the prisms are illuminated from the inside and the illumination is uniform over the entire length of the prism, while the prisms are still easy to install and remove , and the storage of the prisms at both ends enable a fine adjustment of the prism position with respect to the longitudinal axis and the bearings have a great smoothness and long life. Furthermore, it should be possible to arrange the inside of the prisms Lighting fixtures and prisms can be easily replaced.
  • the fluorescent tube is dimensioned so long that it passes through the bearings at both ends and the two ends of the fluorescent tube protrude from the bearings.
  • the ends of the fluorescent tubes which are provided with the contact connections, and the two end regions, which are normally darker than the other regions of the tube, are in the region of the bearings and not in the region of the prism lateral surfaces to be illuminated. This has the great advantage that the prism surfaces are completely and evenly illuminated over the entire length, resulting in an excellent brilliance and quality of the image presentation.
  • the support of the prisms on the lower bearing and the displaceability of the rotatable bearing part connected to the upper end of the prisms relative to the fixed bearing part enables the inclusion and compensation of changes in length of the prisms due to temperature changes.
  • the prisms are driven in a known manner with a toothed belt drive and a central drive element. However, this drive can be replaced by other known drive means without slippage.
  • the prisms are adjusted to the desired position by the adjusting devices on the bearing at one end of the prisms, the means for the rough adjustment being formed by bringing the gear wheel connected to the bearing into engagement with the toothed belt in a first rough positioning.
  • the means for the fine adjustment consist of mutually rotatable clamping and adjusting rings, which enable a continuous adjustment of the position of the prisms with respect to the longitudinal axis at least in the area of a tooth pitch of the toothed belt drive.
  • This arrangement has the advantage that the associated lateral surfaces of all prisms can be aligned precisely on one plane in a predetermined holding position and the image information to be presented is thereby presented as a flat surface.
  • the setting can be carried out quickly and easily without the need for complicated installation and removal of drive elements.
  • Another advantage of the device is that by arranging the bearings with the adjusting devices, the drive devices and the fixed plug-in couplings for the fluorescent tubes on a removable support, these elements can be installed or removed as a complete unit from the display device. As a result, the entire drive can be set, maintained and adjusted outside the display device, or in the event of defects, the display device can be made functional again within a very short time by exchanging this carrier.
  • a single prism can also be expediently removed from the device, since the electrical connections of the interior lighting are easily detachable and the fluorescent tube arranged as interior lighting in the prism is removed together with the prism.
  • the passages in the bearings of the prisms are formed so far that the fluorescent tube in the The prism is withdrawn from a bearing and tilted within the prism, and then the prism is released from the positive connection with the driven bearings and lifted out of the device.
  • the display device according to the invention shown in FIG. 1 consists of a housing 45, a front cover 46 and a multiplicity of triangular prisms 1 arranged in parallel to one another foremost prism and associated interior lighting omitted.
  • the display device shown has fifteen prisms arranged parallel to one another over the entire length, not shown, which can all be rotated together and synchronously about their longitudinal axes 2.
  • the prisms 1 are mounted at the upper end 3 and at the lower end 4 in a frame 5, or carrier 6.
  • bearings 13 are arranged at the upper end 3 of the prisms 13 and bearings 14 at the lower end 4 of the prisms.
  • the upper bearings 13 are supported and attached to the frame 5, and the lower bearings 14 on the carrier 6.
  • Both the upper bearing 13 and the lower bearing 14 have central passages 15 and 16, respectively, through which a fluorescent tube 8 is guided.
  • the carrier 6 is detachably attached to a holding plate 27 of the housing 45 and can be removed from the housing 45.
  • At the lower part of the carrier 6 there are holding brackets 28, on which electrical plug-in couplings 23 are fastened for receiving one end of the fluorescent tubes 8.
  • These plug-in couplings 23 are connected to electrical supply lines 24 for the energy supply of the fluorescent tubes 8.
  • a flexible electrical supply line 26 is provided on the frame 5 for each prism 1, at the end of which there is also a plug-in coupling 25 for connection to the end of the fluorescent tube 8.
  • the prisms 1 have a cross section which corresponds to an equilateral triangle and consist of translucent acrylic glass.
  • the lateral surfaces 9 and 10 as well as the invisible third lateral surface carry image information which, for example, is excerpts from an overall image, this image information being arranged on paper or another suitable carrier.
  • the individual image strips are fastened to the lateral surfaces 9, 10 with the aid of appropriate holders or other known fastening means.
  • the image strips located on the lateral surface 9 of all prisms 1 in the illustrated example combine to form an overall image as soon as all lateral surfaces 9 lie in a common plane.
  • the longitudinal edges 11, 12 of adjacent lateral surfaces 9 are as close as possible to one another in order to produce a closed image. All prisms 1 are connected to the drive 7 via the bearings 14 and a toothed belt drive and can be rotated through 120 ° about the longitudinal axes 2 by means of a corresponding control, not shown. A different image can be presented with each rotation.
  • the front cover 46 of the housing 45 can be pivoted upwards or swung open about the pivot axis 49. This makes the prisms 1 and the corresponding drive and bearing devices accessible.
  • An optically transparent plate 47 for example made of reflection-free glass, is installed in the front cover 46 and releases the area of the lateral surfaces 9 of all prisms 1.
  • the front cover 46 is opened up about the pivot axis 49, only the upper part being shown and the rest being cut away in the illustration.
  • the fluorescent tube 8 arranged in the interior of the cut prism 1 extends through the central passages in the bearings 13 and 14.
  • the lower end 22 of the fluorescent tube 8 is coupled to the plug-in coupling 23 and is thus firmly supported on the holding bracket 28.
  • the upper end 21 of the fluorescent tube 8 also protrudes from the upper bearing 13, but is not held firmly here, but is freely movable within the central passage of the bearing 13.
  • the plug connector 25 connected to the flexible electrical lead 26 is attached.
  • the fluorescent tube 8 is thus not influenced in the event of any length changes of the prisms 1 or in the case of deformations of the housing 45, since it is only supported on the holding bracket 28 and is otherwise freely movable.
  • the prism 1 rests on the bearing 14 at the lower end 4 and is coupled to the rotatable part 20 of the bearing 14 via driver pins 36.
  • the rotatable part 20, which is connected to the prism 1 is mounted on a fixed part 19, this fixed part 19 being fastened to the carrier 6.
  • the upper end 3 of the prism 1 is movable in the direction of the longitudinal axis 2, so that changes in the length of the prism have no effect on its mounting.
  • the upper bearing 13 has a part 17 which is detachably attached to the frame 5.
  • this part 17 to the frame 5 can either by fixed connections such as screws or by detachable connections such as spring clips or a bayonet lock or other suitable means.
  • the rotatable part 18 of the bearing 13 is fastened to the upper end 3 of the prism 1 and rotatable about the lower region of the part 17 of the bearing 13.
  • a prism 1 or a fluorescent tube 8 is installed or removed in such a way that the front cover 46 is first opened in the direction of the arrows 48 and then the electrical plug-in coupling 25 is released. Then the part 17 of the bearing 13 is released and pulled out of the upper end 3 of the prism 1 and out of the frame 5.
  • the prism 1 can be moved out of the carrier pin 36 by slight shifting upwards and lifted out of the carrier 6 by swiveling forwards and then moving downwards.
  • the prism 1 By moving the prism 1 further down, the upper end 21 of the fluorescent tube 8 is also pulled out of the frame 5, and the entire prism is detached from the device. The installation process takes place in the reverse way.
  • a bearing 14 of the prisms 1 is shown with an adjusting device.
  • This bearing 14 consists of a fixed part 19 which is attached to the base plate of the carrier 6.
  • a gear 30 is mounted via two bearings 32, 33, which meshes with a toothed belt 31.
  • the upper end 39 of the gear 30 is designed as a clamping ring 34, which has an annular groove 40 in which an adjusting ring 35 is rotatably mounted.
  • This adjusting ring 35 forms the rotatable part 20 of the bearing 14.
  • Clamping screws 38 are arranged on the clamping ring 34, by means of which the adjusting ring 35 is clamped in the groove 40 can be.
  • the central passage 16 for the fluorescent tube 8 extends through the entire bearing 14. The diameter of this central passage 16 is dimensioned such that all the intended movements of the fluorescent tube 8 are possible.
  • the toothed belt 31 is connected to the drive unit 7 shown in Figures 1 and 2, and there are additional tensioning devices, not shown.
  • the position of the teeth on the toothed belt is predetermined by the engagement in the drive wheel on the drive 7.
  • the rough adjustment of the prisms 1 now takes place in such a way that the toothed wheel 30 is brought into engagement with the toothed belt 31 in the position closest to the desired position.
  • Gear 30 and toothed belt 31 form the first means for adjusting the prism position.
  • the fine adjustment is now carried out in such a way that the clamping screws 38 are loosened and the adjusting rings 35 are rotated about the axis 2 with respect to the clamping rings 34 until the lateral surfaces 9 of the prisms 1 are exactly aligned in one plane.
  • the adjusting rings 35 are fixed and thus the position of all the prisms 1 with reference to the common drive is precisely recorded via the toothed belt 31.
  • the clamping ring 34 and the adjusting ring 35 form the second means for adjusting the prism position. At an exchange of a single prism 1 can be easily aligned and adjusted exactly to the common level.
  • Figure 4 shows the configuration of the upper end 39 of the gear 30 with the clamping ring 34.
  • This clamping ring 34 is part of the gear 30 and is formed by a radial groove 42 extending transversely to the axis 2.
  • the ring 34 is equipped with a gap 43.
  • the clamping screw 31 is arranged, with which the annular groove 40 can be clamped together.
  • Characterized the adjusting ring 35 is clamped with the three driver pins 36.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Digital Computer Display Output (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The display apparatus has a plurality of prisms (1), which can be rotated about their longitudinal axes (2). The prisms (1) are light-permeable and bear parts of images or information items on their outer surfaces (9, 10). Each prism (1) has internal illumination in the form of a fluorescent tube (8), which does not rotate with the prism (1). The fluorescent tubes (8) are longer than the prisms and are passed through the bearings (13, 14) and supported at only one end, in order to be able to compensate for dimensional differences. The lower bearings (14) of the prisms (1) comprise first and second means for, respectively, the coarse and fine adjustment of the position of the prisms (1) and have a releasable, positive-fitting connection (36, 37) to the prisms (1). The upper bearings (13) of the prisms (1) are detachable and allow movements of the prisms (1) towards their longitudinal axis (2). The prisms (1) and the fluorescent tubes (8) are easy to remove from the housing (45) and also easy to replace. <IMAGE>

Description

Die Erfindung betrifft eine Anzeigevorrichtung für Plakate oder andere Bildinformationen mit in Intervallen wechselnden Darstellungen, wobei die Vorrichtung aus mehreren parallel zueinander angeordneten um ihre Längsachse drehbaren Dreiecksprismen besteht, diese Prismen an beiden Enden in einem Rahmen gelagert, einseitig mit einem Antrieb verbunden und mit einer Innenbeleuchtung ausgestattet sind und lichtdurchlässige Mantelflächen aufweisen, bei der Anzeige der Information jeweils eine der Mantelflächen aller Prismen in einer gemeinsamen Ebene liegt und die Längskanten dieser Mantelflächen aneinander anliegen, und dabei jede Mantelfläche jedes Prismas einen Teilbereich der anzuzeigenden Bildinformation trägt.The invention relates to a display device for posters or other image information with alternating displays, the device consisting of a plurality of triangular prisms arranged parallel to one another and rotatable about their longitudinal axis, these prisms mounted at both ends in a frame, connected on one side to a drive and with interior lighting are equipped and have translucent lateral surfaces, when the information is displayed one of the lateral surfaces of all prisms lies in a common plane and the longitudinal edges of these lateral surfaces abut one another, and each lateral surface of each prism bears a partial area of the image information to be displayed.

Anzeigevorrichtungen dieser Art, in der Praxis auch Wechselbildflächen oder Prismenwender genannt, sind in verschiedenen Ausführungen bereits bekannt. DE-27 36 866-A1 zeigt eine derartige Vorrichtung, bei welcher eine Anzahl von Dreiecksprismen parallel zueinander angeordnet und in einem Rahmen abgestützt und gelagert sind. Jeweils eine der Seiten eines jeden Prismas trägt einen Teil eines Gesamtbildes, so dass sich bei richtiger Zuordnung der Prismenseiten zueinander ein vollständiges Bild präsentiert. Die hier verwendeten Prismen sind aus Aluminiumprofil hergestellt, und die darzustellenden Informationen in der Form von Bildern, Plakaten oder anderer Bildinformationen sind auf die Mantelflächen dieser Aluminiumprismen aufgeklebt oder in anderer bekannter Weise aufgebracht. Die Prismen sind an beiden Enden mit Lagerzapfen gerzapfen versehen, welche im Rahmen der Vorrichtung gelagert sind. Die unteren Lagerzapfen sind mit Zahnritzeln ausgestattet, welche über Zahnriemen angetrieben werden. Dabei sind alle Prismen über eine Mehrzahl von Zahnriemen so miteinander verbunden, dass alle mit einem zentralen Antrieb gleichzeitig und synchron um ihre Längsachsen gedreht werden können. Entsprechende bekannte Einrichtungen sorgen dafür, dass der Antrieb in den gewünschten Positionen gestoppt, und dann die zueinander gehörenden Mantelflächen aller Prismen in einer gemeinsamen Ebene liegen. Anzeigevorrichtungen dieser Art können nur bei Tageslicht eingesetzt werden oder müssen mit Lichtstrahlern von aussen beleuchtet werden. In Anbetracht der relativ hohen Kosten derartiger Bildpräsentationsvorrichtungen wird häufig eine zusätzliche Beleuchtung gewünscht, damit die Informationen auch bei schwachem Tageslicht oder in der Nacht erkennbar sind. Die Beleuchtung der Bildfläche von vorn ist relativ aufwendig, und in vielen Fällen ist das Bild ungleichmässig oder sogar unvollständig ausgeleuchtet. Bei Schaukästen mit vollflächig präsentierten Bildinformationen ist es bereits bekannt, Plakate oder dergleichen auf lichtdurchlässige Platten aufzuziehen und zu hinterleuchten. Auch hier besteht jedoch die Schwierigkeit, das ganze Bild gleichmässig auszuleuchten, wozu oft zusätzliche optische Einrichtungen wie zum Beispiel Spiegelflächen oder dergleichen notwendig sind.Various types of display devices of this type, also known in practice as alternating image areas or prism turners, are already known. DE-27 36 866-A1 shows such a device in which a number of triangular prisms are arranged parallel to one another and are supported and supported in a frame. One of the sides of each prism carries part of an overall image, so that a complete image is presented if the prism sides are correctly assigned to one another. The prisms used here are made of aluminum profile, and the information to be displayed in the form of pictures, posters or other picture information is glued to the outer surfaces of these aluminum prisms or applied in a known manner. The prisms are journaled at both ends gerzapfen provided, which are stored in the context of the device. The lower journals are equipped with pinions, which are driven by toothed belts. All prisms are connected to each other via a plurality of toothed belts in such a way that they can all be rotated simultaneously and synchronously around their longitudinal axes with a central drive. Corresponding known devices ensure that the drive is stopped in the desired positions, and then the mating surfaces of all prisms that belong to one another lie in a common plane. Display devices of this type can only be used in daylight or must be illuminated from the outside with light spots. In view of the relatively high cost of such image presentation devices, additional lighting is often desired so that the information can be recognized even in poor daylight or at night. Illuminating the image area from the front is relatively complex, and in many cases the image is unevenly or even incompletely illuminated. In display cases with image information presented over the entire surface, it is already known to mount posters or the like on translucent plates and to backlight them. However, here too there is the difficulty of illuminating the entire image uniformly, for which purpose additional optical devices such as mirror surfaces or the like are often necessary.

Aus US-A-3 383 785 ist eine weitere Anzeigevorrichtung mit drehbaren Prismen bekannt, bei welcher die Beleuchtungskörper im Inneren der Prismen angeordnet sind. Da die Halterungen der Beleuchtungskörper ebenfalls in den Prismen angeordnet sind, ergeben sich erhebliche Schwierigkeiten, eine gleichmässige Ausleuchtung zu erreichen. Zum Ein- und Ausbau der Beleuchtungskörper müssen die Prismen zerlegt werden, was einen erheblichen Aufwand und eine komplizierte mechanische Gestaltung zur Folge hat. Eine weitere Einrichtung mit Innenbeleuchtung ist aus FR-A-2 624 293 bekannt. Hier ist als Beleuchtungskörper eine Leuchtstoffröhre im Inneren einer lichtdurchlässigen Lagerhülse angeordnet. Diese Lagerhülse kann den Beleuchtungseffekt erheblich stören. Der Ein- und Ausbau der Leuchtstoffröhre ist nur in Richtung der Längsachse möglich und erfordert einen entsprechenden zusätzlichen Freiraum neben der Einrichtung. Oft ist dieser Freiraum nicht vorhanden, und bei Defekten am Beleuchtungskörper muss dann die ganze Einrichtung abgebaut und zerlegt werden. Diese Probleme behindern den Einsatz und die Wartung der bekannten Einrichtungen. Zudem lassen sich die einzelnen Anzeigeflächen nur mit grossem Aufwand oder nur ungenügend gegenseitig und in einer Ebene ausrichten.From US-A-3 383 785 a further display device with rotatable prisms is known, in which the lighting fixtures are arranged inside the prisms. Since the fixtures for the lighting fixtures are also arranged in the prisms, there are considerable difficulties in achieving uniform illumination. To install and remove the lighting fixtures, the prisms have to be disassembled, which results in considerable effort and a complicated mechanical design. Another device with interior lighting is known from FR-A-2 624 293. Here is a fluorescent tube arranged as a lighting element inside a translucent bearing sleeve. This bearing sleeve can significantly disrupt the lighting effect. The installation and removal of the fluorescent tube is only possible in the direction of the longitudinal axis and requires a corresponding additional space next to the device. Often this free space is not available, and in the event of defects in the lighting fixture, the entire facility must then be dismantled and dismantled. These problems hinder the use and maintenance of the known devices. In addition, the individual display areas can only be aligned with one another with great effort or only insufficiently and on one level.

Der Erfindung liegt die Aufgabe zugrunde, eine Anzeigevorrichtung für Plakate oder andere Bildinformationen mit drehbaren Prismen zu schaffen, bei welcher die Prismen von innen beleuchtet sind und die Ausleuchtung über die ganze Länge des Prismas gleichmässig ist, dabei die Prismen trotzdem leicht ein- und ausbaubar sind, und die Lagerung der Prismen an beiden Enden eine Feineinstellung der Prismenposition in Bezug auf die Längsachse ermöglichen und die Lager eine grosse Laufruhe und lange Lebensdauer aufweisen. Im weiteren soll es möglich sein, die im Innern der Prismen angeordneten Beleuchtungskörper und die Prismen in einfacher Weise auszuwechseln.The invention has for its object to provide a display device for posters or other image information with rotatable prisms, in which the prisms are illuminated from the inside and the illumination is uniform over the entire length of the prism, while the prisms are still easy to install and remove , and the storage of the prisms at both ends enable a fine adjustment of the prism position with respect to the longitudinal axis and the bearings have a great smoothness and long life. Furthermore, it should be possible to arrange the inside of the prisms Lighting fixtures and prisms can be easily replaced.

Diese Aufgabe wird bei einer Anzeigevorrichtung für Plakate oder andere Bildinformationen nach dem Oberbegriff des Patentanspruches 1 erfindungsgemäss durch die kennzeichnenden Merkmale dieses Patentanspruches gelöst. Vorteilhafte Weiterbildungen der Erfindung ergeben sich nach den Merkmalen der abhängigen Patentansprüche.This object is achieved according to the invention in a display device for posters or other image information according to the preamble of patent claim 1 by the characterizing features of this patent claim. Advantageous developments of the invention result from the features of the dependent claims.

Durch den zentralen Durchlass, welcher in beiden Lagern an den Enden aller Prismen angeordnet ist, kann eine Innenbeleuchtung in der Form einer Leuchtstoffröhre in die Prismen eingeschoben werden. Die Leuchtstoffröhre ist dabei so lang bemessen, dass sie an beiden Enden durch die Lager hindurchgeht und die beiden Enden der Leuchtstoffröhre aus den Lagern vorstehen. Dadurch befinden sich die Enden der Leuchtstoffröhren, welche mit den Kontaktanschlüssen versehen sind, und die beiden Endbereiche, welche normalerweise dunkler sind als die übrigen Bereiche der Röhre, im Bereiche der Lager und nicht im Bereiche der zu beleuchtenden Prismenmantelflächen. Dadurch wird der grosse Vorteil erreicht, dass die Prismenmantelflächen über die ganze Länge vollständig und gleichmässig ausgeleuchtet sind und sich dadurch eine hervorragende Brillanz und Qualität der Bildpräsentation ergibt. Da die Leuchtstoffröhre feststeht und sich nicht mit dem Prisma mitdreht und auch nicht mit bewegten Lagerteilen in Kontakt kommt, wird die Gefahr der Beschädigung der Röhre selbst, aber auch der elektrischen Anschlüsse, erheblich reduziert. Die Abstützung der Prismen auf dem unteren Lager und die Verschiebbarkeit des mit dem oberen Ende der Prismen verbundenen drehbaren Lagerteiles gegenüber dem festen Lagerteil ermöglicht die Aufnahme und den Ausgleich von Längenänderungen der Prismen infolge Temperaturänderungen.Through the central passage, which is arranged in both bearings at the ends of all prisms, interior lighting in the form of a fluorescent tube can be inserted into the prisms. The fluorescent tube is dimensioned so long that it passes through the bearings at both ends and the two ends of the fluorescent tube protrude from the bearings. As a result, the ends of the fluorescent tubes, which are provided with the contact connections, and the two end regions, which are normally darker than the other regions of the tube, are in the region of the bearings and not in the region of the prism lateral surfaces to be illuminated. This has the great advantage that the prism surfaces are completely and evenly illuminated over the entire length, resulting in an excellent brilliance and quality of the image presentation. Since the fluorescent tube is fixed and does not rotate with the prism and does not come into contact with moving bearing parts, the risk of damage to the tube itself, but also to the electrical connections, is considerably reduced. The support of the prisms on the lower bearing and the displaceability of the rotatable bearing part connected to the upper end of the prisms relative to the fixed bearing part enables the inclusion and compensation of changes in length of the prisms due to temperature changes.

Der Antrieb der Prismen erfolgt in bekannter Weise mit einem Zahnriementrieb und einem zentralen Antriebselement. Dieser Antrieb kann jedoch durch andere bekannte Antriebsmittel ohne Schlupf ersetzt werden. Die Einstellung der Prismen auf die gewünschte Position erfolgt durch die Einstellvorrichtungen am Lager an einem Ende der Prismen, wobei die Mittel zur groben Einstellung dadurch gebildet werden, dass das mit dem Lager verbundene Zahnrad in einer ersten Grobpositionierung in Eingriff mit dem Zahnriemen gebracht wird. Die Mittel für die Feineinstellung bestehen aus gegeneinander verdrehbaren Klemm- und Stellringen, welche eine stufenlose Einstellung der Position der Prismen gegenüber der Längsachse mindestens im Bereiche einer Zahnteilung des Zahnriementriebes ermöglichen. Diese Anordnung hat den Vorteil, dass die zusammengehörenden Mantelflächen aller Prismen in einer vorbestimmten Halteposition genau auf eine Ebene ausgerichtet werden können und sich dadurch die darzubietende Bildinformation als ebene Fläche präsentiert. Die Einstellung kann rasch und einfach erfolgen, ohne dass komplizierte Ein- und Ausbauten von Antriebselementen notwendig sind.The prisms are driven in a known manner with a toothed belt drive and a central drive element. However, this drive can be replaced by other known drive means without slippage. The prisms are adjusted to the desired position by the adjusting devices on the bearing at one end of the prisms, the means for the rough adjustment being formed by bringing the gear wheel connected to the bearing into engagement with the toothed belt in a first rough positioning. The means for the fine adjustment consist of mutually rotatable clamping and adjusting rings, which enable a continuous adjustment of the position of the prisms with respect to the longitudinal axis at least in the area of a tooth pitch of the toothed belt drive. This arrangement has the advantage that the associated lateral surfaces of all prisms can be aligned precisely on one plane in a predetermined holding position and the image information to be presented is thereby presented as a flat surface. The setting can be carried out quickly and easily without the need for complicated installation and removal of drive elements.

Ein weiterer Vorteil der Vorrichtung besteht darin, dass durch die Anordnung der Lager mit den Einstellvorrichtungen, der Antriebseinrichtungen und der festen Steckkupplungen für die Leuchtstoffröhren an einem ausbaubaren Träger diese Elemente als ganze Baueinheit aus der Anzeigevorrichtung ein-, bzw. ausbaubar sind. Dadurch kann der ganze Antrieb ausserhalb der Anzeigevorrichtung eingestellt, gewartet und justiert werden, oder bei Defekten kann die Anzeigevorrichtung innert sehr kurzer Zeit durch Austausch dieses Trägers wieder funktionsfähig gemacht werden. Besonders zweckmässig lässt sich auch ein einzelnes Prisma aus der Vorrichtung ausbauen, da die elektrischen Verbindungen der Innenbeleuchtung leicht lösbar sind und die als Innenbeleuchtung im Prisma angeordnete Leuchtstoffröhre mit dem Prisma gemeinsam ausgebaut wird. Dazu werden die Durchlässe in den Lagern der Prismen so weit ausgebildet, dass die Leuchtstoffröhre im Prisma aus einem Lager zurückgezogen und innerhalb des Prismas schräggestellt, und dann das Prisma von der formschlüssigen Verbindung mit den angetriebenen Lagern gelöst und aus der Vorrichtung herausgehoben wird. Diese erfindungsgemässe Ausgestaltung der Vorrichtung ermöglicht ein einfaches und schnelles Austauschen von Prismen oder das Ein- und Ausbauen von Prismen.Another advantage of the device is that by arranging the bearings with the adjusting devices, the drive devices and the fixed plug-in couplings for the fluorescent tubes on a removable support, these elements can be installed or removed as a complete unit from the display device. As a result, the entire drive can be set, maintained and adjusted outside the display device, or in the event of defects, the display device can be made functional again within a very short time by exchanging this carrier. A single prism can also be expediently removed from the device, since the electrical connections of the interior lighting are easily detachable and the fluorescent tube arranged as interior lighting in the prism is removed together with the prism. For this purpose, the passages in the bearings of the prisms are formed so far that the fluorescent tube in the The prism is withdrawn from a bearing and tilted within the prism, and then the prism is released from the positive connection with the driven bearings and lifted out of the device. This configuration of the device according to the invention enables simple and quick replacement of prisms or the installation and removal of prisms.

Im folgenden wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher erläutert. Es zeigen:

Fig. 1
die Ansicht eines Teiles einer erfindungsgemässen Anzeigevorrichtung in vereinfachter Darstellung und mit einem Teilschnitt
Fig. 2
einen Längsschnitt entlang der Drehachse eines Prismas durch die Anzeigevorrichtung gemäss Figur 1
Fig. 3
ein Schnittbild durch ein Lager mit Einstellvorrichtungen am unteren Ende eines Prismas
Fig. 4
eine Aufsicht auf das Lager gemäss Figur 3.
The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying drawings. Show it:
Fig. 1
the view of part of an inventive display device in a simplified representation and with a partial section
Fig. 2
2 shows a longitudinal section along the axis of rotation of a prism through the display device according to FIG. 1
Fig. 3
a sectional view through a bearing with adjusting devices at the lower end of a prism
Fig. 4
a supervision of the camp according to Figure 3.

Die in Figur 1 dargestellte erfindungsgemässe Anzeigevorrichtung besteht aus einem Gehäuse 45, einer vorderen Abdeckung 46 und einer Vielzahl von parallel zueinander angeordneten Dreiecksprismen 1. In der Figur ist nur der rechte Teil einer Anzeigevorrichtung dargestellt, der Rest ist weggeschnitten, und zur Vereinfachung sind auch das vorderste Prisma und die zugehörige Innenbeleuchtung weggelassen. Die dargestellte Anzeigevorrichtung weist über die gesamte nicht dargestellte Länge fünfzehn parallel zueinander angeordnete Prismen auf, welche alle gemeinsam und synchron um ihre Längsachsen 2 drehbar sind. Die Prismen 1 sind am oberen Ende 3 und am unteren Ende 4 in einem Rahmen 5, bzw. Träger 6, gelagert. Dazu sind am oberen Ende 3 der Prismen Lager 13 und am unteren Ende 4 der Prismen Lager 14 angeordnet. Die oberen Lager 13 sind am Rahmen 5 abgestützt und befestigt, und die unteren Lager 14 am Träger 6. Sowohl am oberen Lager 13 wie auch am unteren Lager 14 sind zentrale Durchlässe 15, bzw. 16 vorhanden, durch welche eine Leuchtstoffröhre 8 geführt ist. Der Träger 6 ist lösbar an einer Halteplatte 27 des Gehäuses 45 befestigt und kann aus dem Gehäuse 45 ausgebaut werden. Am unteren Teil des Trägers 6 sind Haltebügel 28 vorhanden, auf welchen elektrische Steckkupplungen 23 für die Aufnahme eines Endes der Leuchtstoffröhren 8 befestigt sind. Diese Steckkupplungen 23 sind mit elektrischen Zuleitungen 24 für die Energieversorgung der Leuchtstoffröhren 8 verbunden. Am Rahmen 5 ist für jedes Prisma 1 eine flexible elektrische Zuleitung 26 vorhanden, an deren Ende sich ebenfalls eine Steckkupplung 25 für die Verbindung mit dem Ende der Leuchtstoffröhre 8 befindet. Die Prismen 1 weisen einen Querschnitt auf, welcher einem gleichseitigen Dreieck entspricht und bestehen aus lichtdurchlässigem Acrylglas. Die Mantelflächen 9 und 10 sowie die nicht sichtbare dritte Mantelfläche tragen Bildinformationen, welche zum Beispiel Ausschnitte aus einem Gesamtbild sind, wobei diese Bildinformationen auf einem Papier oder einem anderen geeigneten Träger angeordnet sind. Die Befestigung der einzelnen Bildstreifen auf den Mantelflächen 9, 10 erfolgt mit Hilfe von entsprechenden Halterungen oder anderen bekannten Befestigungsmitteln. Die im dargestellten Beispiel auf der Mantelfläche 9 aller Prismen 1 befindlichen Bildstreifen fügen sich zu einem Gesamtbild zusammen, sobald alle Mantelflächen 9 in einer gemeinsamen Ebene liegen. Dabei liegen die Längskanten 11, 12 von benachbarten Mantelflächen 9 so nahe als möglich nebeneinander, um ein geschlossenes Bild zu erzeugen. Alle Prismen 1 sind über die Lagerungen 14 und einen Zahnriementrieb mit dem Antrieb 7 verbunden und können über eine entsprechende nicht dargestellte Steuerung jeweils um 120° um die Längsachsen 2 verdreht werden. Bei jeder Drehung kann ein anderes Bild präsentiert werden.The display device according to the invention shown in FIG. 1 consists of a housing 45, a front cover 46 and a multiplicity of triangular prisms 1 arranged in parallel to one another foremost prism and associated interior lighting omitted. The display device shown has fifteen prisms arranged parallel to one another over the entire length, not shown, which can all be rotated together and synchronously about their longitudinal axes 2. The prisms 1 are mounted at the upper end 3 and at the lower end 4 in a frame 5, or carrier 6. For this purpose, bearings 13 are arranged at the upper end 3 of the prisms 13 and bearings 14 at the lower end 4 of the prisms. The upper bearings 13 are supported and attached to the frame 5, and the lower bearings 14 on the carrier 6. Both the upper bearing 13 and the lower bearing 14 have central passages 15 and 16, respectively, through which a fluorescent tube 8 is guided. The carrier 6 is detachably attached to a holding plate 27 of the housing 45 and can be removed from the housing 45. At the lower part of the carrier 6 there are holding brackets 28, on which electrical plug-in couplings 23 are fastened for receiving one end of the fluorescent tubes 8. These plug-in couplings 23 are connected to electrical supply lines 24 for the energy supply of the fluorescent tubes 8. A flexible electrical supply line 26 is provided on the frame 5 for each prism 1, at the end of which there is also a plug-in coupling 25 for connection to the end of the fluorescent tube 8. The prisms 1 have a cross section which corresponds to an equilateral triangle and consist of translucent acrylic glass. The lateral surfaces 9 and 10 as well as the invisible third lateral surface carry image information which, for example, is excerpts from an overall image, this image information being arranged on paper or another suitable carrier. The individual image strips are fastened to the lateral surfaces 9, 10 with the aid of appropriate holders or other known fastening means. The image strips located on the lateral surface 9 of all prisms 1 in the illustrated example combine to form an overall image as soon as all lateral surfaces 9 lie in a common plane. The longitudinal edges 11, 12 of adjacent lateral surfaces 9 are as close as possible to one another in order to produce a closed image. All prisms 1 are connected to the drive 7 via the bearings 14 and a toothed belt drive and can be rotated through 120 ° about the longitudinal axes 2 by means of a corresponding control, not shown. A different image can be presented with each rotation.

Die vordere Abdeckung 46 des Gehäuses 45 ist um die Schwenkachse 49 nach oben schwenkbar, bzw. aufklappbar. Dadurch werden die Prismen 1 und die entsprechenden Antriebs- und Lagereinrichtungen zugängIich. In der vorderen Abdeckung 46 ist eine optisch durchlässige Platte 47, zum Beispiel aus reflexfreiem Glas, eingebaut, welche den Bereich der Mantelflächen 9 aller Prismen 1 freigibt.The front cover 46 of the housing 45 can be pivoted upwards or swung open about the pivot axis 49. This makes the prisms 1 and the corresponding drive and bearing devices accessible. An optically transparent plate 47, for example made of reflection-free glass, is installed in the front cover 46 and releases the area of the lateral surfaces 9 of all prisms 1.

In Figur 2 ist die vordere Abdeckung 46 um die Schwenkachse 49 aufgeklappt, wobei nur der obere Teil dargestellt ist und der Rest in der Darstellung weggeschnitten wurde. Die im Innern des geschnittenen Prismas 1 angeordnete Leuchtstoffröhre 8 erstreckt sich durch die zentralen Durchlasse in den Lagern 13 und 14. Das untere Ende 22 der Leuchtstoffröhre 8 ist mit der Steckkupplung 23 gekoppelt und stützt sich damit fest auf dem Haltebügel 28 ab. Das obere Ende 21 der Leuchtstoffröhre 8 ragt ebenfalls aus dem oberen Lager 13 heraus, ist hier jedoch nicht fest gehalten, sondern innerhalb des zentralen Durchlasses des Lagers 13 frei beweglich. Auf das obere Ende 21 der Leuchtstoffröhre 8 ist die mit der flexiblen elektrischen Zuleitung 26 verbundene Steckkupplung 25 aufgesteckt. Die Leuchtstoffröhre 8 wird somit bei allfälligen Längenänderungen der Prismen 1 oder bei Deformationen des Gehäuses 45 nicht beeinflusst, da sie nur auf dem Haltebügel 28 abgestützt und sonst frei beweglich ist. Das Prisma 1 liegt am unteren Ende 4 auf dem Lager 14 auf und ist über Mitnehmerzapfen 36 mit dem drehbaren Teil 20 des Lagers 14 gekoppelt. Der drehbare Teil 20, welcher mit dem Prisma 1 verbunden ist, ist auf einem festen Teil 19 gelagert, wobei dieser feste Teil 19 am Träger 6 befestigt ist. Das obere Ende 3 des Prismas 1 ist in Richtung der Längsachse 2 beweglich, so dass sich Längenänderungen des Prismas nicht auf dessen Lagerung auswirken. Dazu verfügt das obere Lager 13 über einen Teil 17, welcher am Rahmen 5 lösbar befestigt ist. Die Befestigung dieses Teiles 17 am Rahmen 5 kann entweder durch feste Verbindungen wie zum Beispiel Schrauben oder durch lösbare Verbindungen wie Federspannbügel oder einen Bajonettverschluss oder andere geeignete Mittel erfolgen. Der drehbare Teil 18 des Lagers 13 ist am oberen Ende 3 des Prismas 1 befestigt und um den unteren Bereich des Teiles 17 des Lagers 13 drehbar.In FIG. 2, the front cover 46 is opened up about the pivot axis 49, only the upper part being shown and the rest being cut away in the illustration. The fluorescent tube 8 arranged in the interior of the cut prism 1 extends through the central passages in the bearings 13 and 14. The lower end 22 of the fluorescent tube 8 is coupled to the plug-in coupling 23 and is thus firmly supported on the holding bracket 28. The upper end 21 of the fluorescent tube 8 also protrudes from the upper bearing 13, but is not held firmly here, but is freely movable within the central passage of the bearing 13. On the upper end 21 of the fluorescent tube 8, the plug connector 25 connected to the flexible electrical lead 26 is attached. The fluorescent tube 8 is thus not influenced in the event of any length changes of the prisms 1 or in the case of deformations of the housing 45, since it is only supported on the holding bracket 28 and is otherwise freely movable. The prism 1 rests on the bearing 14 at the lower end 4 and is coupled to the rotatable part 20 of the bearing 14 via driver pins 36. The rotatable part 20, which is connected to the prism 1, is mounted on a fixed part 19, this fixed part 19 being fastened to the carrier 6. The upper end 3 of the prism 1 is movable in the direction of the longitudinal axis 2, so that changes in the length of the prism have no effect on its mounting. For this purpose, the upper bearing 13 has a part 17 which is detachably attached to the frame 5. The attachment of this part 17 to the frame 5 can either by fixed connections such as screws or by detachable connections such as spring clips or a bayonet lock or other suitable means. The rotatable part 18 of the bearing 13 is fastened to the upper end 3 of the prism 1 and rotatable about the lower region of the part 17 of the bearing 13.

Der Ein-, bzw. Ausbau eines Prismas 1, bzw. einer Leuchtstoffröhre 8 erfolgt in der Weise, dass vorerst die vordere Abdeckung 46 in Richtung der Pfeile 48 aufgeklappt und dann die elektrische Steckkupplung 25 gelöst wird. Daraufhin wird der Teil 17 des Lagers 13 gelöst und aus dem oberen Ende 3 des Prismas 1 und aus dem Rahmen 5 nach oben herausgezogen. Durch nach oben ziehen der Leuchtstoffröhre 8 wird diese aus der unteren Steckkupplung 23 ausgefahren und so weit nach oben gezogen, bis sich das untere Ende 22 der Leuchtstoffröhre 8 innerhalb des Prismas 1 befindet und in einer Ecke am unteren Ende 4 des Prismas 1 abgestellt werden kann. Nun kann das Prisma 1 durch geringfügiges Verschieben nach oben aus den Mitnehmerzapfen 36 ausgefahren und durch Verschwenken nach vorn und anschliessendem nach unten Bewegen aus dem Träger 6 herausgehoben werden. Durch weiteres nach unten Bewegen des Prismas 1 wird auch das obere Ende 21 der Leuchtstoffröhre 8 aus dem Rahmen 5 herausgezogen, und das ganze Prisma ist von der Einrichtung gelöst. Der Einbauvorgang erfolgt in umgekehrter Weise.A prism 1 or a fluorescent tube 8 is installed or removed in such a way that the front cover 46 is first opened in the direction of the arrows 48 and then the electrical plug-in coupling 25 is released. Then the part 17 of the bearing 13 is released and pulled out of the upper end 3 of the prism 1 and out of the frame 5. By pulling up the fluorescent tube 8, it is extended out of the lower plug-in coupling 23 and pulled upwards until the lower end 22 of the fluorescent tube 8 is inside the prism 1 and can be parked in a corner at the lower end 4 of the prism 1 . Now the prism 1 can be moved out of the carrier pin 36 by slight shifting upwards and lifted out of the carrier 6 by swiveling forwards and then moving downwards. By moving the prism 1 further down, the upper end 21 of the fluorescent tube 8 is also pulled out of the frame 5, and the entire prism is detached from the device. The installation process takes place in the reverse way.

In Figur 3 ist ein Lager 14 der Prismen 1 mit einer Einstellvorrichtung dargestellt. Dieses Lager 14 besteht aus einem festen Teil 19, welcher an der Grundplatte des Trägers 6 befestigt ist. Auf diesem festen Teil 19 ist über zwei Lager 32, 33 ein Zahnrad 30 gelagert, welches mit einem Zahnriemen 31 in Eingriff steht. Das obere Ende 39 des Zahnrades 30 ist als Klemmring 34 ausgebildet, welcher eine Ringnute 40 aufweist, in welcher ein Stellring 35 drehbar gelagert ist. Dieser Stellring 35 bildet das drehbare Teil 20 des Lagers 14. Am Klemmring 34 sind Klemmschrauben 38 angeordnet, mittels welchen der Stellring 35 in der Nute 40 festgeklemmt werden kann. An der oberen Fläche 41 des Stellringes 35 sind drei Mitnehmerzapfen 36 vorhanden, welche in Bohrungen 37 am unteren Ende 4 der Prismen 1 eingreifen. Einer der drei Mitnehmerzapfen 36 ist etwas höher. Das untere Ende 4 der Prismen 1 ist mit einer Nute versehen, die vom Zentrum zu einer Ecke verläuft und in die der höhere der drei Mitnehmerzapfen 36 eingreift wenn das Prisma 1 auf dem Stellring 35 positioniert werden soll. Die Nute dient dem höheren der drei Mitnehmerzapfen 36 als Führung, mittels der die Bohrungen 37 am unteren Ende 4 der Prismen 1 zu den drei Mitnehmerzapfen 36 bewegt und diese eingerastet werden. Durch das ganze Lager 14 erstreckt sich der zentrale Durchlass 16 für die Leuchtstoffröhre 8. Der Durchmesser dieses zentralen Durchlasses 16 ist so bemessen, dass alle vorgesehenen Bewegungen der Leuchtstoffröhre 8 möglich sind.In Figure 3, a bearing 14 of the prisms 1 is shown with an adjusting device. This bearing 14 consists of a fixed part 19 which is attached to the base plate of the carrier 6. On this fixed part 19, a gear 30 is mounted via two bearings 32, 33, which meshes with a toothed belt 31. The upper end 39 of the gear 30 is designed as a clamping ring 34, which has an annular groove 40 in which an adjusting ring 35 is rotatably mounted. This adjusting ring 35 forms the rotatable part 20 of the bearing 14. Clamping screws 38 are arranged on the clamping ring 34, by means of which the adjusting ring 35 is clamped in the groove 40 can be. On the upper surface 41 of the adjusting ring 35 there are three driver pins 36 which engage in bores 37 at the lower end 4 of the prisms 1. One of the three driver pins 36 is somewhat higher. The lower end 4 of the prisms 1 is provided with a groove which runs from the center to a corner and into which the higher of the three driver pins 36 engages when the prism 1 is to be positioned on the adjusting ring 35. The groove serves the higher of the three driver pins 36 as a guide, by means of which the bores 37 at the lower end 4 of the prisms 1 are moved to the three driver pins 36 and these are latched into place. The central passage 16 for the fluorescent tube 8 extends through the entire bearing 14. The diameter of this central passage 16 is dimensioned such that all the intended movements of the fluorescent tube 8 are possible.

Der Zahnriemen 31 ist mit der in den Figuren 1 und 2 dargestellten Antriebseinheit 7 verbunden, und es sind zusätzliche nicht dargestellte Spanneinrichtungen vorhanden. Die Position der am Zahnriemen vorhandenen Zähne ist durch den Eingriff in das Antriebsrad am Antrieb 7 vorbestimmt. Die Grobeinstellung der Prismen 1 erfolgt nun in der Weise, dass das Zahnrad 30 in der, der gewünschten Position am naheliegendsten Stellung in Eingriff mit dem Zahnriemen 31 gebracht wird. Dadurch ist bereits eine grobe Ausrichtung der Mantelflächen 9 aller Prismen 1 in eine gemeinsame Ebene möglich. Zahnrad 30 und Zahnriemen 31 bilden die ersten Mittel zur Einstellung der Prismenposition. Die Feineinstellung erfolgt nun in der Weise, dass die Klemmschrauben 38 gelöst werden und die Stellringe 35 gegenüber den Klemmringen 34 so weit um die Achse 2 verdreht werden, bis die Mantelflächen 9 der Prismen 1 genau in eine Ebene ausgerichtet sind. Durch Festschrauben der Klemmschrauben 38 werden die Stellringe 35 festgestellt und damit die Position aller Prismen 1 mit Bezug auf den gemeinsamen Antrieb über den Zahnriemen 31 genau festgehalten. Der Klemmring 34 und der Stellring 35 bilden die zweiten Mittel zur Einstellung der Prismenposition. Bei einem Austausch eines einzelnen Prismas 1 lässt sich dieses in einfacher Weise wieder genau auf die gemeinsame Ebene ausrichten und justieren.The toothed belt 31 is connected to the drive unit 7 shown in Figures 1 and 2, and there are additional tensioning devices, not shown. The position of the teeth on the toothed belt is predetermined by the engagement in the drive wheel on the drive 7. The rough adjustment of the prisms 1 now takes place in such a way that the toothed wheel 30 is brought into engagement with the toothed belt 31 in the position closest to the desired position. As a result, a rough alignment of the lateral surfaces 9 of all prisms 1 in a common plane is already possible. Gear 30 and toothed belt 31 form the first means for adjusting the prism position. The fine adjustment is now carried out in such a way that the clamping screws 38 are loosened and the adjusting rings 35 are rotated about the axis 2 with respect to the clamping rings 34 until the lateral surfaces 9 of the prisms 1 are exactly aligned in one plane. By screwing the clamping screws 38, the adjusting rings 35 are fixed and thus the position of all the prisms 1 with reference to the common drive is precisely recorded via the toothed belt 31. The clamping ring 34 and the adjusting ring 35 form the second means for adjusting the prism position. At an exchange of a single prism 1 can be easily aligned and adjusted exactly to the common level.

Figur 4 zeigt die Ausgestaltung des oberen Endes 39 des Zahnrades 30 mit dem Klemmring 34. Dieser Klemmring 34 ist Bestandteil des Zahnrades 30 und entsteht durch eine quer zur Achse 2 verlaufende Radialnute 42. Zusätzlich ist der Ring 34 mit einem Spalt 43 ausgestattet. Im Bereiche des Spaltes 43 ist die Klemmschraube 31 angeordnet, mit welcher die Ringnute 40 zusammengespannt werden kann. Dadurch wird der Stellring 35 mit den drei Mitnehmerzapfen 36 festgeklemmt.Figure 4 shows the configuration of the upper end 39 of the gear 30 with the clamping ring 34. This clamping ring 34 is part of the gear 30 and is formed by a radial groove 42 extending transversely to the axis 2. In addition, the ring 34 is equipped with a gap 43. In the area of the gap 43, the clamping screw 31 is arranged, with which the annular groove 40 can be clamped together. Characterized the adjusting ring 35 is clamped with the three driver pins 36.

Claims (6)

  1. Display device for posters or other visual information with intermittently changing images, the device comprising a plurality of triangular prisms (1) disposed parallel to one another and rotatable about their longitudinal axis (2), said prisms (1) being supported at both ends (3, 4) in a frame (5, 6), being connected at one end to a drive (7), being equipped with internal lighting (8) and having translucent lateral surfaces (9, 10), during the display of information in each case one of the lateral surfaces (9) of all of the prisms (1) lying in a common plane and the longitudinal edges (11, 12) of said lateral surfaces (9) lying adjacent to one another and each lateral surface (9) of each prism (1) carrying a portion of the visual information to be displayed, characterized in that each of the prisms (1) is connected at each of the two ends (3, 4) to a separate bearing (13, 14) having a central opening (15, 16), the bearings (13, 14) comprise a non-rotatable part (17, 19) connected to the frame (5, 6) and a part (18, 20) rotatable with the prism (1), the bearings (14) at the end of the prisms (1) connected to the drive (7) having two means of aligning the prisms (1) about the axes of rotation (2), the first means being formed by the toothing of the drive elements (30, 31) and the second means being formed by an additional structural part (35), which is rotatable relative to the bearing part (20), and a locking device (34) on the bearing part (20) rotatable with the prism (1), and the internal lighting of each prism (1) is formed by a fluorescent tube (8) which is longer than the prism (1) and whose ends (21, 22) are passed through the openings (15, 16) of the bearings (13, 14) at both ends (3, 4) of the prism (1).
  2. Display device according to claim 1, characterized in that each of the fluorescent tubes (8) is supported at least at one end (22) outside of the bearing (14) of the prism (1) in a plug-in connector fastened to the frame (5) and is connected by said plug-in connector (23) to an incoming electric cable (24), and a plug-in connector (25) fastened to a flexible incoming electric cable (26) is disposed at the other end (21) of the fluorescent tube (8).
  3. Display device according to claim 1 or 2, characterized in that the longitudinal axes (2) of the prisms (1) are vertically disposed and the bottom ends (4) of the prisms (1) are coupled by a releasable keyed connection (36, 37) to the rotatable parts (20) of the bearings (14) having the adjusting means.
  4. Display device according to one of claims 1 to 3, characterized in that the parts (18) of the bearings (13) firmly connected to the top ends (3) of the prisms (1) and rotatable with said prisms are displaceable on the fixed part (17) in the direction of the longitudinal axis (2) and compensate variations in the length of the prisms (1).
  5. Display device according to one of claims 1 to 4, characterized in that the prisms (1) are disposed in a housing (45), a removable carrier (6) for supporting the prisms (1) is detachably fastened in said housing (45) and all of the bearings (14) having the adjusting devices, the drive devices (7, 31) for the prisms (1) and the fixed plug-in connectors (23) for the fluorescent tubes (8) are disposed on said carrier (6).
  6. Display device according to claim 5, characterized in that the housing (45) is provided with a front cover (46) which is capable of swivelling and said cover (46) in the region of the lateral surfaces (9) of the prisms comprises a transparent, weatherproof panel (46).
EP93810275A 1992-04-21 1993-04-15 Display device for advertisement pannel and other graphic informations Expired - Lifetime EP0567432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1288/92 1992-04-21
CH128892 1992-04-21

Publications (2)

Publication Number Publication Date
EP0567432A1 EP0567432A1 (en) 1993-10-27
EP0567432B1 true EP0567432B1 (en) 1995-06-28

Family

ID=4206930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810275A Expired - Lifetime EP0567432B1 (en) 1992-04-21 1993-04-15 Display device for advertisement pannel and other graphic informations

Country Status (4)

Country Link
EP (1) EP0567432B1 (en)
AT (1) ATE124559T1 (en)
DE (1) DE59300303D1 (en)
ES (1) ES2073952T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323200C2 (en) * 1993-07-12 1996-02-15 M & V Reklametechnik Schoening Advertising device with prism turner
AP426A (en) * 1993-10-25 1995-11-08 Michael Smith An electronic device that gives information display.
DE4337255A1 (en) * 1993-11-02 1995-05-04 Herbert Hille Display wall
FR2739961A1 (en) * 1995-10-13 1997-04-18 Saez Ignace Advertising display panel with rotating triangular-section members
DE102008005858A1 (en) * 2008-01-14 2009-07-16 Leurocom Electronic Displays Gmbh light display
CN113470550B (en) * 2021-08-02 2022-07-15 上海恩咨科技有限公司 Novel advertisement display device for catering management

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1392167A (en) * 1964-04-15 1965-03-12 G E P Advertising device
US3383785A (en) * 1965-10-04 1968-05-21 Willy T. Werner Louvered sign
FR2624293B1 (en) * 1987-12-02 1992-07-31 Rousseau Pierre REMOTE VIEWING DEVICE OF A CHARACTER
DE8806539U1 (en) * 1988-05-19 1988-06-30 Brack, Hermann Günter, 6242 Kronberg Device for reproducing advertising texts, images, motifs, etc.

Also Published As

Publication number Publication date
ATE124559T1 (en) 1995-07-15
ES2073952T3 (en) 1995-08-16
DE59300303D1 (en) 1995-08-03
EP0567432A1 (en) 1993-10-27

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