EP0829843A2 - Dispositif d'affichage tournant et girouette pour celui-ci - Google Patents

Dispositif d'affichage tournant et girouette pour celui-ci Download PDF

Info

Publication number
EP0829843A2
EP0829843A2 EP97307217A EP97307217A EP0829843A2 EP 0829843 A2 EP0829843 A2 EP 0829843A2 EP 97307217 A EP97307217 A EP 97307217A EP 97307217 A EP97307217 A EP 97307217A EP 0829843 A2 EP0829843 A2 EP 0829843A2
Authority
EP
European Patent Office
Prior art keywords
facet
display
vane
portions
strip
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.)
Withdrawn
Application number
EP97307217A
Other languages
German (de)
English (en)
Other versions
EP0829843A3 (fr
Inventor
Edward Maurice Pierce Butler
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.)
Powergraphic Displays Ltd
Original Assignee
Powergraphic Displays Ltd
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
Application filed by Powergraphic Displays Ltd filed Critical Powergraphic Displays Ltd
Publication of EP0829843A2 publication Critical patent/EP0829843A2/fr
Publication of EP0829843A3 publication Critical patent/EP0829843A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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

  • This invention relates to a rotary display apparatus of the kind employing a plurality of parallelly-mounted, elongate members, each having a plurality of display facets and being rotatable along a lengthwise axis whereby by organized rotation of the elongate members it is possible to provide a plurality of display surfaces for the apparatus.
  • the elongate members are commonly referred to as vanes or louvres and the apparatus may also be referred to as a rotary vane unit.
  • the invention also relates to a vane for a rotary display apparatus.
  • the conventional apparatus of this kind employs like elongate members of triangular cross-section, specifically equilateral triangular section, having three display facets. These members are synchronously rotatable to provide three successively-presented, display surfaces for the overall display apparatus.
  • the synchronous rotation of the vanes, each being rotated through 120°, may be simultaneous or in a succession to achieve a ripple effect.
  • the vanes have a common dwell period for presenting each display surface.
  • cross-sections other than an equilateral triangle can be used, the great majority of rotary vane units use this shape of vane as it provides the nearest approach to continuous display surfaces.
  • the invention will be described in the context of equilateral-triangular cross-section vanes.
  • Rotary vane units are used for various informatior displays.
  • the most usual form of display is poster material for advertising.
  • a poster sheet is sliced into strips, each of which is affixed to a facet of a respective vane.
  • a long-standing problem has been the changing of poster display material which may need to be done quite frequently.
  • the usual practice for affixing the poster strips to the vane facets has been by means of an adhesive, particularly for large display units, e.g. a 4m x 3m display area.
  • each vane As an elongate core structure to which three removable parts are affixed. Each part provides one of the three display facets for the vane and the parts affixed to the core provide the familiar equilateral triangle cross-section. By such measures the parts carrying the display material to be changed can be removed and replaced by parts carrying fresh display material.
  • a vane structure of this kind is described in British patent specification GB-A-2 134 301 (Prismavision).
  • the parts (called screen sides) are mechanically secured to the core structure of a vane by a snap action.
  • An alternative to the mechanical securement of the parts is a magnetic securement.
  • U.S. patent 3,367,049 discloses the parts carrying the display material as being of magnetizable material, e.g. sheet steel, and the core structure includes magnets to which the sheet steel parts are attracted.
  • the detachable parts having the display material adhered thereto may be taken away from the site of the display unit for treatment in a more convenient workshop, the changing of the display material is still laborious and time-consuming and thus expensive.
  • the parts have to be soaked to soften the adhesive and the relevant surfaces scrubbed to remove the poster material and prepare the surface for the adhesion thereto of fresh material. The parts can then be taken to a fresh site to display the new poster material.
  • the present invention enables us to provide a vane structure for a rotary display apparatus and rotary display apparatus incorporating such vanes which allows of easy changing of display material, and avoids the use of adhesive.
  • the vane structure to be described is economical in construction and the changing of display material in rotary vane units in which such vanes are employed can be done economically.
  • the present invention provides a vane for a rotary display apparatus as set forth in Claim 1. In another aspect the invention provides a rotary display apparatus as set forth in Claim 13.
  • the invention also relates to a system and a method for changing display material.
  • the system can be fitted in a vehicle which can be moved from site to site with the new posters and the pre-loading operation be done at a point conveniently near each of the display units to be changed.
  • vanes 10 and 20 are shown in cross-section.
  • vanes 10 and 20 are within a plurality of like vanes mounted in parallel for rotation about their long axes.
  • the general arrangement of such vanes, housing or other support structures, and drive arrangements to intermittently rotate the vanes through 120° are well known in the art and do not form part of this invention.
  • vanes 10 and 20 are taken to be in a dwell position, then their facets 12 and 22 form part of a display surface viewable from the direction of arrow A and provided by the like oriented and aligned facets of all the vanes in the display unit.
  • the vanes 10 and 20 are mounted for rotation about respective central long axes 18 and 28 respectively.
  • the circular paths traced out by the tip extremities of the vanes are indicated as B and C.
  • vane 10 As the vanes 10 and 20 are identical, it suffices to describe vane 10 in detail.
  • Vane 10 provides three display facets 12, 14 and 16 which lie in an equilateral triangle centred on axis 18.
  • the vane 10 comprises a core portion 30, which is conveniently an extruded aluminium section, and three detachable identical facet portions 40, 42, 44.
  • the core portion 30 itself presents three identical sides 32, 34, 36 to each of which a respective facet portion 40, 42, 44 is attached by a releasable snap action fitting.
  • the facet portions 40, 42, 44 may be made of an acrylic material that is impervious to UV. The acrylic material provides the appropriate combination of stiffness with sufficient resilience to provide a snap-on function and a retaining function for display material, as will be described further below.
  • the core portion 30 includes a hollow inner core 50 of equilateral-triangular section centred on axis 18. From each corner of inner core 50 a respective planar portion 52a, 52b, 52c extends radially with respect to axis 18. Also from each corner extends a pair of opposed and symmetrical wing portions 54 and 56, designated 54a, 56a; 54b, 56b; and 54c, 56c at the respective corners. It will be seen each side 32, 34 and 36 of the core portion includes a pair of these wing portions 54a, 56b; 54b, 56c; and 54c, 56a.
  • the wing portions are of like shape to provide projections or lugs having lock-in recesses for receiving the facet portions. To explain how the facet portions snap-fit onto the wing portions only one side 32 need be considered. The others are identical.
  • the wing portions or fastening lugs 54a and 56b are transversely spaced across the side 32 and have active surfaces facing away from one another and symmetrical with respect to a central radial plane 60 through the side 32.
  • Each active surface starting from the free end, outermost with respect to the general plane of the side, comprises a camming surface 58a, 58b sloping away from the central radial plane 60, leading to a projection 62a, 62b and thence into recess 64a, 64b inwardly directed toward the central plane.
  • the cooperating facet portion 40 comprises a central support section 70 of generally arched shape, the arch rising outwardly with respect to the general plane of side 32. From the sides of the arch a pair of legs 72a, 72b depend inward and provide a resilient engagement with the active surfaces of the wing portions 52a, 56b respectively. To this end each leg has an inwardly projecting lug 74a, 74b seating in a respective recess 64a, 64b and a respective recess 76a, 76b that seats on a respective projection 62a, 62b.
  • the transverse spacing between the lugs 74a and 74b is made a little greater than that between the camming surfaces 58a, 58b at the free end of projections 54a, 54b so that the lugs fit onto the camming surfaces and are guided by them.
  • the facet portion 40 has a pair of symmetrical wings 80a, 80b which have portions 82a, 82b extending in the plane of the side 32 to seat against the end of the respective radial planar portions 52a, 52c.
  • the portions 82a, 82b lead to outer tip portions 84a, 84b at 120° to the portions 82a, 82b respectively so each tip portion engages the neighbouring tip portion of an adjacent facet portion along the radial plane of the associated planar portion of the inner core, e.g. 52a.
  • the outer end of each planar portion may be V-chamfered to better seat the wing portions. In this way the radial planar portions of the core locate and support the adjacent portions of the facet members.
  • tips 84a, 84b terminate in reflex lips 86a, 86b that are directed inwardly toward the central plane 60 so that the outer edge portions of the facet portion 40 provide opposed elongate slots 87a, 87b for receiving the edges of a strip of display material.
  • the reflex lips 86a, 86b may be turned in to be directed toward the plane of the strip to be seated on projections 88a, 88b in order to assist in firmly holding the strip in place. This additional reflexing is seen in the facet portion illustrated in Figure 1A.
  • the top of the arch section 70 has a pair of transversely spaced, parallel, guide projections 88a, 88b which provide a rear support for holding a strip of display material flat within the facet portion.
  • a further support projection 88c may be provided if desired.
  • the projections 88a, b, c may project further forwardly with respect to the reflex lips 86a, 86b than is shown so that the strip of display material is held in a slightly sinuous configuration with the portion of it supported by these projections bowed outwardly. This aids in releasing the strip particularly if it has become wet due to ingress of rain or moisture.
  • the acrylic material be both transparent and colourless to allow the top and bottom edges of the display strip to show through the lips 86a, 86b. It is to be understood that the features of the cross-section of the vane structure thus far described all extend along the elongate vane parallel to the axis 18. It is not essential that the various features should necessarily extend in an unbroken line along the length of the vane. For example the legs 72a, 72b and/or the wing portions 54a, 54b etc. could be interrupted in the axial direction while maintaining their retaining function.
  • the dashed line 90 in facet portion 44 providing facet 16 indicates the plane in which a strip of display material is received.
  • the extent of the forward projection of the guide projections 88a, b, c relative to the lips may be such as to slightly bow out the centre portion of the strip from the plane 90.
  • a flat protective strip of clear material e.g. acrylic
  • the clearance allowed between the free ends of the lips and the projections 88a,b,c is chosen accordingly.
  • the unstressed lips may be formed to depend slightly inwardly (Fig. 1A) so that when the display material and the protective strip are in place the lips are in flat engagement with the outer surface of the protective strip.
  • the legs of the facet portion can be pressed onto the wings 54a, 56b so that the legs 72a, 72b are cammed along the surfaces 58a, 56b and over the projections 62a, 62b to have the inwardly directed lugs 74a, 74b seat in recesses 64a, 64b.
  • the facet portion 40 can be detached by pressing the wing tips together at D and D.
  • the outwardly concave shape of the facet portion causes it to bow more concavely, releasing the lugs from the recesses.
  • the hollow triangular shape of the inner core 30 is particularly suitable for receiving at each end a bearing/camming insert of the kind disclosed in EP-A-024 396.
  • Fig. 2 is a diagrammatic representation of a vehicle body 100 into which is fitted a system for pre-loading facet portions such as 40 described above. Furthermore the facet portions are stacked into a cassette for ease of delivery to the rotary display unit in which they are too be mounted.
  • the vehicle thus provides a mobile workshop.
  • the vehicle body provides an enclosed interior working space accessible through the rear 102 of the body in the usual manner.
  • roller assembly 106 located toward the top of the side wall.
  • the roller assembly carries poster material as complete sheets.
  • the poster material is pulled off the roller assembly over a downwardly and inwardly sloping surface 108 to a roller guillotine 110.
  • a roller guillotine 110 is an extended version having a length of 3m.
  • the roller guillotine is set to cut pre-set increments of the poster sheet to provide display strips of a pre-set width. This width is set to match the transverse width of the strip to be accommodated by the facet portions, e.g. 40, in which the poster is to be supported.
  • the strip 112 just cut is taken around guides 114 mounted adjacent the front wall 116 of the vehicle body.
  • the guides 114 lead the strip around 180° so that it moves in the reverse direction on reaching the other side wall 118.
  • Mounted along this side wall spaced inwardly from it is a stack 120 of facet portions, such as 40, with their open (front exterior) sides facing upwards.
  • the top facet portion 122 of the stack is held inclined at an angle, being tilted upwardly in the direction toward the interior, that is toward the plane of the strip 112 as it emerges from guides 114. This assists in the lengthwise movement of the emerging strip into the facet portion 122.
  • the loaded portion 122 is moved outwardly towards the wall 118 of the vehicle to the top of a stack 124 of pre-loaded facet portions.
  • the pre-loaded facet portions are stacked in the sequence that they are to be mounted in the rotary display apparatus.
  • the stacking in this fashion is arranged to provide a "cassette" of pre-loaded facet portions that is movable as a unit to the rotary display apparatus.
  • the system of Figure 2 can be set up and mounted in places other than a vehicle.
  • the preparation of display strips by guillotining as described need not necessarily be followed by loading of the strips in the cassette fashion discussed. They can be transported and used in any way desired once the strips are mounted to the vanes.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
EP97307217A 1996-09-17 1997-09-17 Dispositif d'affichage tournant et girouette pour celui-ci Withdrawn EP0829843A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9619406.3A GB9619406D0 (en) 1996-09-17 1996-09-17 Rotary vane apparatus and vane therefor
GB9619406 1996-09-17

Publications (2)

Publication Number Publication Date
EP0829843A2 true EP0829843A2 (fr) 1998-03-18
EP0829843A3 EP0829843A3 (fr) 1998-12-30

Family

ID=10800064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97307217A Withdrawn EP0829843A3 (fr) 1996-09-17 1997-09-17 Dispositif d'affichage tournant et girouette pour celui-ci

Country Status (2)

Country Link
EP (1) EP0829843A3 (fr)
GB (1) GB9619406D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255237A3 (fr) * 2001-04-30 2003-05-21 Reinhardt Schuler Dispositif pour la réception de moyens publicitaires

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE538170C (de) * 1929-08-28 1931-11-11 Jagenberg Werke Ag Verfahren und Vorrichtung zum Einfuehren von Gegenstaenden in Stapelschaechte
US2728622A (en) * 1952-09-20 1955-12-27 Owen H Griswold Display device
GB2105895B (en) * 1981-09-16 1985-05-30 Ultravision Limited Display apparatus
SE443676B (sv) * 1983-01-27 1986-03-03 Prismavision Ab Stomme for vridbara bildskermar for skyltar
GB2250122A (en) * 1990-10-01 1992-05-27 Powergraphic Displays Ltd Rotary displays
ES2055645T3 (es) * 1992-05-08 1994-08-16 Plakatron Ag Prisma para la presentacion de soportes de informacion.
DE9213435U1 (de) * 1992-10-06 1993-01-28 Hund, Franz, 7570 Baden-Baden Prismenwender für Werbezwecke
FR2723460B3 (fr) * 1994-08-08 1996-10-04 Jurcevic Miodrag Support prismatique de presentation de bandes d'affiche d'un dispositif d'affichage, ainsi que le procede de changement de bandes d'affiche de celui-ci
DE29516260U1 (de) * 1995-10-13 1995-12-21 Benadda, Ahmed, 34125 Kassel Antriebseinrichtung für ein drehbares Präsentationselement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255237A3 (fr) * 2001-04-30 2003-05-21 Reinhardt Schuler Dispositif pour la réception de moyens publicitaires

Also Published As

Publication number Publication date
GB9619406D0 (en) 1996-10-30
EP0829843A3 (fr) 1998-12-30

Similar Documents

Publication Publication Date Title
CA1240838A (fr) Amenagement dans des panneaux publicitaires a ecrans d'affichage trilateraux
CA1058852A (fr) Rasoir de surete
US6386416B1 (en) Tape dispenser
ES2322995T3 (es) Aplicacion de etiquetas adhesivas a productos y a recipientes de productos.
US6470613B1 (en) Label holder for shelf channels
US6276084B1 (en) Sign holders and methods of assembly thereof
CA2361494A1 (fr) Dispositif permettant d'afficher des informations
EP1757549A1 (fr) Dispositif de coupe pour matériau en bande
USRE30913E (en) Safety razor with flexible blade cartridge
EP2442294B1 (fr) Dispositif d'affichage
SE516640C2 (sv) Monteringssystem för etiketthållare
AU4764697A (en) Razor heads having independently flexible blades
EP0829843A2 (fr) Dispositif d'affichage tournant et girouette pour celui-ci
CA2014349C (fr) Devidoir de ruban
US3943646A (en) Display board construction
US20070040408A1 (en) Windshield fastening device
DE19881239D2 (de) Messerhalter für Kreismesser mit Handschutz
CA2430693A1 (fr) Ensemble emballage et dispositif de coupe jetable
US5328729A (en) Cut-to-fit, peel and stick poster frame
EP0785898A1 (fr) Distributeur
WO1997043743A1 (fr) Cadre ameliore avec dispositif de retenue d'image
US4446640A (en) Price ticket and like displays
GB2369051A (en) A display frame assembly
US4729479A (en) Cassette tape holder
DE19880912D2 (de) Messerhalter für Kreismesser

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19990701

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566