Card – picture – or sign exhibiting – Signs – Modular
Patent
1988-10-21
1990-12-18
Dorner, Kenneth J.
Card, picture, or sign exhibiting
Signs
Modular
40611, 160135, G09F 700
Patent
active
049776967
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a display rack, which is built up from frames which enclose disks or plates, on which advertising and other information, prizes or the like can be shown, for example in shops, department stores and in exhibitions. The frames in such display racks are built up from, or composed of , side wall pieces of hollow extruded form consisting of two hollow-beam or tubular portions which are interconnected by means of a bridge portion. Said portions then between themselves forming two longitudinally extending grooves in the side pieces mainly in the plane of the assembled frame. In such frames which the invention relates to, lateral pieces of the frames are held together by corner pieces which are shaped with mutually rectangular pairs of legs or projections which can be inserted into said hollow beam or tubular portions of the side pieces.
Previously known frames are interconnected to larger racks or shields by means of fittings or couplings which are secured by screwing, or by means of other fixing means attached to the frames. This is often effected in a manner costly and complicated for this purpose.
It has now been found that an advantageous and amazingly simple and cheap method can result in a display rack which is highly flexible and has low weight, by developing the construction described in the international printed publication WO No. 84/04366 (patent application PCT/SE No. 84/00087). This is accomplished, according to the invention, thereby that of the mentioned longitudinal grooves, at least one externally located groove of each display frame is recessed, i.e. with an external opening of the groove being narrower than the rest of the groove in order to prevent a dowel member introduced into the groove from passing from the groove transversely to the longitudinal direction thereof. Further, the corner pieces are formed with cavities as extensions of the recessed grooves of the side members of the frames so as to permit the dowel members to pass without any obstacle through the corner piece and into said recessed groove. Each coupling member further comprises at least two dowels members, each of which is adapted for introduction through one of the cavities of a corner piece and further into a corresponding recessed groove in a side member of the frame for the purpose of interconnecting two or more adjacent display frames at nearby situated corners.
In another embodiment of the invention one or more dowels of a coupling member have one or more nibs, which project through the external opening of the recessed groove for the purpose of preventing the dowel member from rotating about its longitudinal axis relative to the groove.
In a third embodiment the dowel has a cross portion shaped so as to force said cross portion to project so far outside the dowel that the cross portion cannot be introduced into the cavity in the corner piece in order thus to limit the distance over which the dowel can be inserted through the corner piece and into the recessed groove of the frame piece.
In a fourth embodiment the cross portion is constituted by a ball applied to the dowel.
In a fifth embodiment the dowel is connect with a transversal sheet or disk functioning as a foot for the purpose of supporting the display frame in upright position at some distance from the base.
In a sixth embodiment the coupling member consists of two dowels arranged in axial alignment to each other for the purpose of interconnecting two display frames located, for example, one above the other.
In a seventh embodiment the coupling member is shaped as a U with two mutually parallel dowels for the purpose of interconnecting display frames located side by side.
In an eighth embodiment the coupling member has four dowel members interconnected in the form of an H for the purpose of interconnecting four display frames at adjacent corners of the frames in both lateral and vertical directions.
In a ninth embodiment the dowel member is dimensioned such that it can be introduced through the cavity of the corner piece and into th
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patent: 4712336 (1987-12-01), Backer
Dorner Kenneth J.
Hakomaki J.
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