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Publication numberUS3685666 A
Publication typeGrant
Publication dateAug 22, 1972
Filing dateNov 2, 1970
Priority dateNov 2, 1970
Publication numberUS 3685666 A, US 3685666A, US-A-3685666, US3685666 A, US3685666A
InventorsRose Sidney
Original AssigneeRose Sidney
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable display device
US 3685666 A
A portable display device comprising collapsible frame members which open into a series of rectangles for receiving rectangular panels and extendible legs. Refinements to permit collapsing into a small compact form for easy transportation and with aids to quick and easy set up into a strong and stable display device. Additional features turn the device into a compact still picture or movie theatre.
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Description  (OCR text may contain errors)

United States Patent 151 3,685,666 Rose {451 Aug. 22,1972

[54] PORTABLE DISPLAY DEVICE 3,559,814 2/1971 Downing ..2l1/l78 R X [72] Inventor: Sidney Rose, 92 Laurel St., Little Silver, Monmouth, NJ. 08852 Primary Examiner-Ramon Britts Att0mey-Alfred W. Barber [22] Filed: Nov. 2, 1970 21 Appl. No.: 85,893 [57] ABSTRACT V A portable display device comprising collapsible frame members which open into a series of rectangles [g2] ..2 ll/l78,:2;;255l% for receiving rectangular panels and extendible legs I.- o e e u v u e I I a i s a e e e e I e e e I e u Q a e u on a Fleld 0f Search "211/178 R, 177, 2}], 38, 85, form for y transportation and with aids to quick 21 H104 1 167; and easy set up into a strong and stable display device. 40/125 1; 248/166 1885 Additional features turn the device into a compact still 157; 312/257 R picture or movie theatre.

[ 5 References Cited Portable display devices have been available in the past but they leave much to be desired when it comes UNITED STATES PATENTS to true portability, versatility and ease of setting up. They have not folded as compactly as is possible with l ghugchlll the present invention; they have not been as versatile on e l in the configurations possible when set up; nor have 2,746,822 5/1956 Copenhaver ..248/l88.5 they been so easy to Set up on location 2,748,955 6/1956 Anselmo ..21 1/178 R 3,415,5l9 12/1968 Hand ..40/125 H X 9 Claims, 11 Drawing Figures F 25- 12 o 16 27 50 T, 26 (1 4 10 4b 4b [E 46 47 H 52 7 13 9 F 51 1 i 1 l7 18 l 19 20 J l PATENTEDAUBZZ 1972 3,685,666

SHEET 1 BF 3 49 7 U 25 12 7 1e H 8 2e 14 1O 45 g I 46 21 I I 1 f I '1 22 23 I 47 48 l H I I 52 7 13 I 9 I 17 18 I 19 2o 1 1 UL FIG. 1 11 1.\'1'1;.\"1' 1 SIDNEY ROSE WWW ATTORNEY PATENTEDwszz m2 SHEET 2 OF 3 FIG. 6





SIDNEY ROSE WORNEY PORTABLE DISPLAY DEVICE SUMMARY In accordance with the present invention a portable folded these horizontal frame members spring into straightened members. The horizontal frame member hinges have tongue and groove parts so that when in a straight line, the horizontal frame members become laterally rigid.

The extendible legs are formed of rectangular extruded aluminum tubing and fit snugly into the vertical frame members. The vertical frame members are also rectangular extruded aluminum tubing and are provided with internal ribs. These internal ribs form tracks for the legs and they allow air to enter as the legs are moved in or out preventing a vacuum or compression effect which would slow the operation. The legs carry spring loaded buttons which mate with holes in the vertical members providing locking of the legs in extended position. With the legs withdrawn the display device is adapted to sit on a desk or table.

Various adaptors and accessories are provided. A main shelf is provided to span the display at the bottom edge of the main frame. A sign holder mounts along the top of the main frame. An auxiliary shelf fits in the rear of the open display for holding a movie or still picture projector and a screen for the projection is available. Many configurations are possible employing two, three, four or more of the rectangular panels. A floor pad permits use on soft or yielding surfaces. Lamp brackets provide an illuminated display. Various accessories provide means for turning the display into a permanent display of fixed configuration.

The hollow rectangular vertical members permit ready and stable mounting of signs, lights and other accessories. Once mounted, the rectangular section prevents turning so that once located in the desired position, movement is prevented.

In the drawing:

FIG. 1 is a general view of an assembled three panel display device in accordance with the present invention.

FIG. 2 is an assembled two panel display including a shelf and a sign holder.

FIG. 3 is the two panel display at the start of the folding operation.

FIG. 4 is the two panel display in a further stage of folding.

FIG. 5 is the two panel display nearly completely folded for carrying.

FIG. 6 is a crosssection taken through an upright frame member carrying a leg.

FIG. 7 is a side view of a horizontal member partly collapsed to show the spring loading.

FIG. 8 is a top view of the hinge used in the horizontal member to show its interlocking parts.

FIG. 9 is a cross-sectional view through an upright and a leg showing the button which locks the leg in position.

FIG. 10 is a foot pad for receiving a leg to provide a good support on a soft surface such as on a thick rug.

FIG. 1 1 is a view of accessory lamps mounted on the vertical members.

FIG. 1 shows a three panel display in accordance with the present invention. The main frame comprises the rectangular tubular vertical or upright members 1, 2, 3, 4, 5 and 6 joined together by six horizontal mem bers 45, 46, 47, 48 and so on. These horizontal members are hinged to fold inwardly toward the centers of the rectangles at ll, 12, 13,14, and 16 (see FIGS. 3

. and 5). The three rectangular areas defined by the vertical and horizontal members are provided with rectangular panels 25, 26 and 27 (see also FIG. 4). A shelf may be attached in the rear as suggested by the dash lines 21, 22, 23 supported by leg 24. The horizontal members are hinged at each end 49, 50, 51, 52 and so on to permit the inward folding at the centers. Legs 17, 18, 19 and 20 are provided formed of rectangular tubular extrusions so that they slide within the upright mem bers and are locked in place by a spring loaded button (see also FIGS. 6 and 9). The horizontal members are spring loaded so that they tend to straighten (see also FIG. 7) and the center and end hinges are tongue and groove for lateral rigidity when in place (see FIG. 8).

The display folds into a compact and solid rectangular package when knocked-down (see FIG. 5). The legs slide back into the uprights; the horizontal members fold inwardly and the whole knocked-down package is compacted, solid and easy to transport. Also, setting up the display from the knocked-down form is very quick and easy. When released, the horizontal members straighten themselves to form the rectangles, the legs are pulled out and locked and the display is set in a vertical position with its several folds in the desired configuration. The rectangles formed by the vertical and horizontal members are channelled to receive and hold rectangular flat back-boards (see FIG. 4).

The flexibility of configuration is substantially enhanced by double-jointed hinges between adjacent uprights which permit 360 degree rotation of one back panel with respect to the next adjacent back panel. Thus, the two, three or more upright panels may be arranged in any desired geometrical configuration from completely folded in one direction around to completely folded in the reverse direction.

FIGS. 3, 4 and 5 show various stages through which a two panel display is programmed to disassemble and fold into a compact configuration for carrying. As shown in FIG. 3, leg members 33, 34 and 35 are pushed into upright members 28, 29 and 30 respectively. The horizontal members 40, 41 and 43 hinge at centers and ends (suggested by the dotted lines and two arrows). With the legs pushed in, the rectangular panels, as 31 in FIG. 4, may be withdrawn. With these panels removed, the upright and vertical members can be folded into a compact rectangular package by completing the folding shown in progress in FIG. 5.

FIG. 6 is a cross-sectional view of an upright frame member and leg. The upright frame member 1 is of a rectangular (preferably square) cross-section and is hollow with internal ribs such as 51 and 52 in pairs along all four inside surfaces. Leg member 17 fits inside lock as the legs are moved in or out. Along one face of 5 frame member 1 a channel 73-74 is formed to serve as a guide for holding panel 31. Adjacent to this channel the end of the hinge 75 (see also FIG. 7) is fastened as by bolt 77 and the body 46 of the horizontal member is pivoted on bolt 76. Both legs and vertical frame members may be formed by extruding aluminum through a properly formed extrusion die.

FIG. 7 is a side view of one of the hinged horizontal members. The horizontal member comprises two substantially equal members 45 and 46 hinged at 12 and also adapted to hinge with the vertical members as described above in connection with FIG. 6. In order to cause the horizontal members to be self-aligning during the set-up process, tension is provided between opposite ends of members 45 and 46 by spring loaded wires passing over a channel in the tops of interlocking hinge members 53 and 54. Wires 56 and 57 tensioned by spring 56 is located inside member 46 and a similar wire and spring completes the path inside member 45.

FIG. 8 shows how hinge members 53 and 54 interlock when the horizontal member is fully extended. This view also shows channels 58 and 59 for carrying the tensioning wires.

F IG. 9 is a detail of the leg 17 and frame member 1 in cross-section showing how the leg is locked at a predetermined extended position by means of button 62 secured to spring 60 as by nut 63. Spring 60 is mounted on leg 17 as by rivet 61 and serves to force position locating button 62 through hole 65 in leg 17 into hole 64 in frame 1. To unlock button 62 is merely pushed in until it clears hole 64.

FIG. shows four leg pads each comprising a flat base 66 and a socket 67 for receiving a leg. These leg pads provide a firm base for the display when it is erected on a yielding surface such as a deep pile rug or in sand or the like.

FIG. 11 shows how accessories such as lamps 71 and 72 may be readily mounted on the display as by frame 68, 69 and 70 which includes downwardly projecting arms 68 and 69 which fit into the tops of the hollow upright members.


1. In a folding display device, the combination of;

a plurality of rectangular frames;

each of said frames comprising two straight side members and top and bottom hinged members; wherein abutting side members are hinged to each other;

wherein said top and bottom members are hinged to said side members and have center hinges to permit the inward folding of said top and bottom members of each of said frames toward one another;

wherein said side members are hollow;

wherein said side members are provided with longitudinal channel means at the inner edges thereof for receiving rectangular display panels;

leg means retractable into said side members; and

means for maintaining said leg means in an exii'l filiiiilis glli device as set forth in claim 1, and including;

longitudinal spring means within said top and bottom members adopted to force said members into a straight relationship.

3. A folding display device as set forth in claim 1, and


rib means for guiding said leg means and allowing movement of air within the side members to prevent air-locking of said legs within said side members.

4. A folding display device as set forth inc claim 1,

and including;

wherein said hinges on said abutting members are double-jointed to permit any angular relationship between adjacent frames.

5. A folding display device as set forth in claim 1, and


a spring loaded stop means attached to each of said legs for mating with openings in said side members to position said legs at predetermined extended positions.

6. A folding display device as set forth in claim 1, and


lamp bracket means mountable in the upper ends of said side members.

7. A folding display device as set forth in claim 1, and


foot pad means for receiving the lower ends of said legs.

8. A folding display device as set forth in claim 1, and


rectangular display panels for mounting in said channel means of said side members.

9. A folding display device as set forth in claim 1, and


shelf means for mounting across extended bottom members.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US742394 *Jul 13, 1903Oct 27, 1903Mary Susan ChurchillClothes-rack.
US1578633 *May 29, 1924Mar 30, 1926Joseph Edward DaileyExercising apparatus
US2746822 *Feb 21, 1955May 22, 1956Copenhaver Roy TAdjustable table legs
US2748955 *Aug 2, 1951Jun 5, 1956Charles AnselmoCollapsible rack
US3415519 *Jun 16, 1965Dec 10, 1968William Hand GenePortable target holder
US3559814 *Feb 3, 1969Feb 2, 1971Downing John GFolding table-top display
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3813064 *Apr 21, 1972May 28, 1974Heyworth EVisual runway distance marker
US3817396 *Jun 9, 1972Jun 18, 1974Package Exhibit Programs IncPortable display apparatus
US3975850 *Apr 10, 1975Aug 24, 1976Giaume Antoine S BPortable display device
US4071969 *Jun 17, 1975Feb 7, 1978Tonhauser Harry LCollapsible display elements
US4288937 *Oct 25, 1979Sep 15, 1981Virsen Gary RDisplay structure
US4711046 *Feb 27, 1985Dec 8, 1987Herrgord Donald ELightweight multi-panel display
US4949490 *Sep 17, 1986Aug 21, 1990Channel-Kor Systems, Inc.Reinforced panel device
US5347737 *Aug 7, 1992Sep 20, 1994Theobald Iii Clarence JPortable sign
US6036289 *Nov 6, 1998Mar 14, 2000Marcoux; YolandeFoldable artist easel
US6250039Feb 22, 2000Jun 26, 2001Abex Display SystemsChannel bar assembly for modular display systems
US7874090Jan 25, 2011Rodger H. FlaggFree standing modular display
US20100293828 *May 11, 2010Nov 25, 2010Flagg Rodger HFree standing modular display
DE2912815A1 *Mar 30, 1979Oct 16, 1980Staeger Kg RaumtechnikDisplay stand for upright flat surface displays panels - has enclosed rigid frames, with uprights for panel suspension and with frame connectors
DE19526025A1 *Jul 17, 1995Jan 23, 1997Raumtechnik Ges Fuer MessebauWall exhibition etc panel
EP0279753A1 *Jan 29, 1988Aug 24, 1988Solyfob Fonctions (Societe Lyonnaise De Fournitures De Bureau)Conference easel
U.S. Classification211/199, 40/610, 40/605
International ClassificationG09F15/00
Cooperative ClassificationG09F15/0068
European ClassificationG09F15/00C