Card – picture – or sign exhibiting – Signs – Sign support
Patent
1996-04-04
1998-07-14
Green, Brian K.
Card, picture, or sign exhibiting
Signs
Sign support
40603, 40650, 4066101, 4066108, 160351, G09F 1500
Patent
active
057785805
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an image or picture display unit, and then more particularly, but not exclusively, to an image display unit which includes a sheet-like image-carrying carrier having an outer shape which includes two mutually spaced edges, wherein the carrier has a stiffness and a flexibility which will enable the carrier, or a section thereof, to be readily bent or curved to a circular cross-section or similar cross-section, in which the aforesaid two edges meeting one another when the unit is erected to an image displaying state.
By picture or image displaying unit and by an image or picture carrier is meant every type of image, such as figures, text, colored surfaces, and also transparent sheets.
DESCRIPTION OF THE PRIOR ART
Several types of image display unit of the aforesaid kind are known to the art. For instance, it is known to use as an image or picture display unit an erectable and collapsible support device which, when erected, is able to support one or more image-carrying, normally flat carriers, by virtue of the coaction of a first part of a two-part coupling unit attached to the support device with a second part of the coupling unit which is attached to the carrier, these coupling parts preferably having the form of mutually coacting permanent magnets, whereby the carrier, which hangs from its upper edgepart, will rest against the support device in either a flat or a curved state.
The carrier can be transported in the form of one or more rolls, and any change in shape caused by rolling-up the carrier is compensated for when the carrier is hung-up against the support device.
U.S. Pat. No. 4,825,930 teaches a hinge system which is adapted for large picture or image display systems, having a frame or a support device onto which an image carrier or a wall part is attached.
Other examples of the known prior art are illustrated and described in U.S. Pat. Nos. 4,147,198 and 4,448,231, and International Patent Publication WO91/12402 (PCT/SE91/00090).
In the case of simpler display arrangements or image display units it is known to fasten an image carrier to a stiffened frame structure, or to fasten the image carrier to a rigid sheet of material or the like.
The present invention also relates to simpler display arrangements and to display arrangements having a display surface of smaller size, for instance measuring 0.5-2.0 m.times.1.0-4.0 m.
SUMMARY OF THE PRESENT INVENTION
Technical Problems
When studying the earlier known prior art as described above it will be seen that a technical problem resides in providing an image display unit which can be erected and collapsed in a simple manner, and which, in principle, is comprised of a highly flexible and preferably thin sheet-like image carrier onto which simple parts of a necessary coupling device have been fitted.
It will also be seen that a technical problem is one of creating conditions such that an image-carrying carrier which is not in itself sufficiently rigid to be able to stand upright, or which has been provided with complicated supporting devices, to enable such an image carrier to be stably erected and to be collapsed to a small and compact state, solely with the aid of a few simple strips and by particularly simple bending of a part-section of the carrier.
It will also be seen that a technical problem is one of realizing that the image carrier of the display unit must have an outer form and a contour such as to present two mutually opposite edges, normally and preferably mutually parallel edges.
It will also be seen that a technical problem is one of realizing the significance of choosing the carrier material and/or the material composition so as to obtain a degree of stiffness and flexibility that will enable the carrier to be readily rolled-up into the form of a cylinder which can be readily transported and which has a predetermined small diameter and which can be easily unrolled into a flat state with no appreciable deformation of the image carrier.
Another technical problem is one of realizing the
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Chop Andrea
Green Brian K.
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