Abstract:
The disclosure relates to any improved display system unit for holding display panels, photomurals, banners, signs or the like in a variety of sizes. There is also depicted multi-unit systems consecutively joined by hinged and straight connectors to form any desired display configuration. Interchangeable snap or press fit connectors allow alternate assemblies and wall or floor mounting.

Description:
This application is a continuation-in-part of application Ser. No. 09/767,442, filed Jan. 23, 2001, which is a continuation-in-part of application Ser. No. 09/480,108, filed Jan. 10, 2000, now abandoned itself a continuation-in-part of application Ser. No. 08/878,745, filed Jun. 19, 1997, now U.S. Pat. No. 6,012,688, which, in turn, is a continuation-in-part of application Ser. No. 08/738,876, filed Oct. 28, 1996, now U.S. Pat. No. 5,839,705, issued Nov. 24, 1998. The previous related applications are of common inventorship and assignment and the contents of both are deemed incorporated by reference herein in their entirety for any purpose. 

   BACKGROUND OF THE INVENTION 
   I. Field of the Invention 
   The present invention relates to improved display systems for holding display graphics including panels, photomurals, banners, signs or the like in tension and in a generally upright, but angularly adjustable, position and particularly to a collapsible lightweight system that is easily assembled with the item to be displayed or collapsed for transport or storage. The display system can be used indoors as a stand alone support or outdoors with a stake-down system or stabilizing counter weights. 
   II. Related Art 
   There often exists a need to provide a temporary or portable or even permanent device for displaying one or more photomural or other graphic information carrying banner or sign that is readily deployed to support and display a relatively large sign and yet can be removed and/or collapsed into a lightweight, easily carried compact form for transport and storage. Such a device would find advantageous use in retail sales displays, trade shows, fairs, lawn signs or the like to provide a variety of information to those in view of it. Certain types of signs have been devised that are portable and at least to some extent collapsible. 
   One type of collapsible, multi-faceted, self-supporting systems with opposed displays is shown by Zeigler (U.S. Pat. No. 4,970,841) in which panels are held together in a back-to-back arrangement. Other collapsible systems are depicted in U.S. Pat. No. 4,700,498 to Perutz et al and U.S. Pat. No. 5,203,126 to Sorenson et al. Scissor connectors are used to interconnect a plurality of vertical frame units in Weinrub et al (U.S. Pat. No 5,269,112). 
   While existing devices have certain attributes and provide a degree of flexibility and portability in display signs, there remains a need for a lightweight, durable, fully collapsible system that deploys from a knock-down transport or storage state to accommodate a variety of banners or photo-murals readily. There also exists a need for such a system in which a plurality of different banners or murals can be interchangeably displayed in a variety of combinations of multiple panels using the same frames to form a variety of larger multiple-frame displays of various configurations. There also would be an advantage if the size of the display frame could be varied to accommodate a variety of display sizes. 
   Accordingly, it is a primary object of the present invention to provide a versatile, lightweight, durable, readily deployed, readily collapsible display support system for a banner or photomural display panel that combines in a variety of configurations to accommodate a variety of banners. 
   A further object of the invention is to provide a lightweight, durable, readily deployed, readily collapsible display support system for a plurality of banner or photomural display panel units in which a variety of banners or photomurals can readily be accommodated on panels joined together in a manner that enables at least some individual panels to be pivoted relative to each other to form triangles, winged shapes and any number of other display shapes. 
   Another object of the present invention is to provide such a multi-panel display support system in which the posture of any display panel is variable and easily adjusted. 
   Still another object of the present invention is the provision of a collapsible self-supporting display panel unit of adjustable size. 
   Yet another object of the present invention is to provide such a display panel support system that is relatively rugged and economical. 
   A still further object of the invention is to provide a lightweight, durable, readily deployed, readily collapsible display support system for a plurality of banner or photomural display panels in which the banners or photomurals can be displayed in one or more directions. 
   A yet still further object of the invention is to provide a lightweight, durable, readily deployed, readily collapsible display support system for a plurality of banner or photomural display panels in which the banners or photomurals can be displayed a single direction consecutively in line. 
   Other objects and advantages associated with the display panel support system of the invention will become apparent to those skilled in the art upon further consideration of this specification, drawings and appended claims. 
   SUMMARY OF THE INVENTION 
   The present invention provides compact, lightweight, self-contained support systems that are easily deployed to carry and support one or more photomurals, banners, signs or the like under tension and that readily collapse to rather small sizes for transport and storage. As used herein, the terms “banner” or panel or photomural, etc. are defined to include all possible types of display articles susceptible of mounting using the support system of the invention. 
   The display support systems of the invention may take a variety of forms using relatively few interchangeable parts making them extremely versatile and easy to manufacture. The system may be constructed of segments of strong, light weight aluminum alloy tube connected using slip fittings, connecting hub devices and other unique parts. Other materials including other metals and polymeric materials or fiberglass may also be used for the rod segments. Connectors and hub devices may be machined from metals or made of any dimensionally stable material including cast, molded or otherwise processed polymer materials such as polyamides, for example. Successful parts here been made from various nylons. 
   In some cases, portions of the rods or other parts may be of solid construction. The parts may be snap-fit together using a variety of fittings. However, the panel support systems or individual units are generally made up of a plurality of hollow tube segments connected by one or more internal resilient cord (bungee) systems that allow easy assembly and disassembly (knock down) for transport or storage in a relatively small container. The support units can be sized to carry one or more rectangular banners of any size or shape or a banner of any other configuration capable of being tensioned between such spaced parallel tubes. The system is very light weight and, for example, a single 4′×8′ banner support of aluminum alloy may weigh less than a pound. 
   One single-banner embodiment incorporates a pair of spaced hollow mounting tubes which carry opposite edge loops of the banner threaded over the tubes. In an assembled system, the banner is carried on and between the mounting rods, spaced apart, the banner held in tension by a pair of hollow strut members crossed to form an X-bracing arrangement. The struts are made up from a plurality of slip-fit sections which combine to form elongated flexible tubular members which, when assembled in place, cross behind the banner and hold the mounting tubes in spaced parallel relation the flexible rods being somewhat longer than the transversal distance of the assembled structure and so assuming a bowed shape when connected to the mounting tubes. Both ends of each of the flexible struts of the X-bracing include terminal pins which are designed to be accommodated in openings in corresponding resiliently held hub members slip fitted into the ends of the spaced hollow mounting rod members. The openings in the hubs are elongated toward the surface to accommodate the struts over a range of angles between hub and strut. The X-bracing flexible strut members themselves are adjustably constrained at the intersection where they cross behind the banner by a central strap or loop member which allows relative displacement of the intersection along the X-bracing strut members. 
   Each hub end of one hollow mounting tube member, i.e., the one which carries the lower edge loop of the banner, and becomes the lower hollow mounting rod member in the combined structure, is also resiliently connected to one end of one of a pair of hollow base tube members, the other ends of which converge to intersect and form the legs of an isosceles triangle support base with the lower mounting tube member. The intersection of the base legs is connected by a hollow stabilizing tube member, of one or a plurality of slip fit sections, with the strap surrounding the intersection of the X-bracing strut members to complete and stabilize the mounting structure. Adjustment of the posture of the connecting rod relative to the base triangle correspondingly adjusts the posture of the banner. 
   The X-bracing tubular struts, particularly in larger models, are preferably made up of plurality of sequentially connected slip jointed tube segments tensioned by a resilient internal cord member of the type commonly referred to as “bungee” cords connected between end pins that are fit into the ends of each of the X-bracing struts as assembled. As stated, the converging base tube members and connecting strut member are also connected together utilizing a loop of resilient cord material which passes in a loop around the strap connecting the X-bracing intersection and extends through the stabilizing tube member segments as a pair of resilient cords, each of which is thereafter separately threaded through one of the base tube members to a terminal eyelet larger than the internal diameter of the base tube member and designed to be captured by the corresponding pin of the X-bracing strut tube when it is assembled in the hub opening in the corresponding hub in the lower mounting tube member. 
   In this manner, the system can easily be disassembled and assembled by applying tension to pull the connections apart at the hub or along the resilient connecting cords. As with the pins terminating the strut members of the X-bracing, the hubs at the ends of the upper and lower mounting rods may also be held in place by a common connecting resilient cord member attached to inside eyelets provided therein. The network of cords provides sufficient tension to stabilize the assembled unit and enough resistance to allow easy disassembly. The multiple segments of the X-bracing tubular struts readily fold when pulled apart and the connecting rod member segments readily fold with the base members. The banner or mural may be folded while still on the mounting rods or separately and the whole assembly readily stored in a carrying case or tube. 
   In still other embodiments of single banner units, both the mounting members and the X-bracing struts are constructed to have adjustable lengths. They may be constructed using a co-axial telescoping arrangement so that the lengths of both can be adjusted and banners in a range of sizes can be accommodated on a single mounting device. The telescoping arrangement of the invention also enables mounting tubes and bracing struts to be locked in at any desired length in the range available so that once adjusted the system can be tightened and fixed in place for a particular size banner or mural and, thereafter, changed to accommodate another size as desired. 
   The triangle base may, optionally, be a removable snap-on support base including members which connect to form a triangle with the lower mounting member and a vertical strut (which may also telescope) connected at the top to the intersection of the X-brace as by a snap-on, snap-together hub and at the bottom to the intersection of the base members using a 3-way connector. The snap-on hub may replace a strap member in any embodiment and any telescoping (adjustable) or fixed unit can be provided with a removable triangle base in another embodiment. 
   The triangular base, single banner display embodiments readily convert into a continuous-line multi-banner display by simply changing the hub members in the mounting rods from single ended, single port to double ended, double port hubs that accommodate two strut members. In this manner, as many consecutive banners or photomurals or the like as desired can be aligned and locked together, possibly as elements of a much larger picture or display. Each end mural and if desired each consecutive mural may be supported on a triangular base so that the entire length is self-stabilized. 
   The display system may be arranged using a parallelogram or rectangular construction with banners or panels in spaced back-to-back arrangements as two or four banner rectangular system. Alternatively, in another conceptual aspect, an A-frame arrangement mounts a dual sided looped banner using a single top mounting member and spaced lower mounting members held together with a single X-brace set. This arrangement resembles the conventional “sandwich board” in shape. Units may also form consecutively joined rectangular arrangements with back-to-back banners in which the individual systems join at the ends of the banner rods much in the manner of the triangular base systems. The rectangular configuration is stable in an upright position or on its side as a table or table-top display. Combinations of all types may be constructed to form bridges or other configurations. 
   In still other configurations, individual, single banner units can be joined together using a hinged swivel arrangement in a variety of configurations with or without triangular support bases. In this manner, as many consecutive units as desired can be arranged side by side in self-supporting configurations. 
   The stability of the X-brace configuration further allows mounting as by clamping the X intersection over itself to a mounting pedestal for a variety of uses. One such use is a tripod mount that allows adjustment of a mural to be used as a photo background, reflective screen or the like. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     In the drawings wherein like numerals characteristically identify like parts throughout the same: 
       FIG. 1  is a perspective view of an assembled display system in accordance with the invention; 
       FIG. 2  is a generally blown apart view of the display system of  FIG. 1 ; 
       FIG. 3  is an enlarged perspective view showing a typical mounting tube end and mounting tube hub member; 
       FIG. 4  is an enlarged view of a typical slip fit end utilized in the segmented tube assembly of the system; 
       FIG. 5  is a schematic perspective view from behind an assembled display system in accordance with the invention; 
       FIG. 6  is a schematic view showing the adjustability of the banner display system of  FIG. 5 ; 
       FIG. 7  is a rear schematic perspective view showing a tie-down system in conjunction with the display system of the invention; 
       FIGS. 8A and 8B  are schematic views showing connected back-to-back banner systems used in a more complex display; 
       FIG. 9A  is a plan view of a right triangle shaped water bladder hold-down device for stabilizing the stand base of the invention; 
       FIG. 9B  is a side elevational view of the water bladder of  FIG. 9A ; 
       FIG. 10  is a plan view detail showing connection of a water bladder in accordance with  FIG. 9A  over a base tube member of the stand base of the invention; 
       FIGS. 11 and 12  depict various patterns of water bladders usable with various sized displaced ends in accordance with the invention; and 
       FIGS. 13A and 13C  depict in-line combinations of the embodiment of  FIGS. 1-7 ; 
       FIGS. 14A and 14B  depict details of one single bore connecting hub (A hub) for use in assembling the support systems of the invention; 
       FIGS. 15A and 15B  depict a dual bore connecting hub with the invention; 
       FIGS. 16A and 16B  depict one hub locking system associated with a hub configuration of the invention; 
       FIGS. 17A and 17B  depict two assembled rectangular banner display support systems; 
       FIG. 18  illustrates a consecutive rectangular banner display arrangement; 
       FIG. 19  shows a combination of vertical or tower rectangular banner display arrangements with a horizontal display in an arch or bridge arrangement; 
       FIGS. 20 and 21  illustrate two horizontal rectangular banner display deployments; 
       FIGS. 22A and 22B  illustrate one hub used in the construction of the rectangular banner display support system; 
       FIG. 23  depicts a “baseless” X-braced banner display arrangement used as a tripod mount; 
       FIG. 24  is an enlarged drawing of a clamp usable to attach the banner display of  FIG. 23  to a conventional tripod; 
       FIGS. 25A-25C  depict perspective views of a variety of additional multi-unit arrangements which may employ hinged or swivel connectors between units; 
       FIG. 25D  depicts a perspective view of an alternative linear or in-line multi-unit arrangement; 
       FIGS. 25E and 25F  are perspective views of composite booth-type arrangements; 
       FIGS. 26A-26D  depict consecutively connected units using fittings connecting adjacent mounting members to form a variety of end-to-end polygon shapes seen in perspective. 
       FIGS. 27-27H  and  27 J- 27 M illustrate a variety of additional hub and connecting fittings for use with the systems including several hinged or pivoting connectors; 
       FIGS. 28A and 28B  depict two lengths of crossing or X-brace legs designed featuring a telescoping adjustable length; 
       FIG. 29  depicts one size or length of a mounting tube having an adjustable length; 
       FIGS. 30A-30E  further illustrate a locking mechanism for the adjustable lengths and several bungee or resilient cord attachment alternative arrangements; 
       FIG. 31  depicts a perspective view of an easel having a telescoping construction and illustrating a removable triangular base support; 
       FIGS. 32A-32B  further illustrate an A-frame construction; 
       FIG. 33  is a rear view of a central hub member with fragmentary braces attached and a stabilizer or tripod support leg arrangement for a banner display system in accordance with another embodiment of the invention showing dual leg positions; 
       FIG. 34  is a side view partially in section of the central X-member hub with attached stabilizing leg of  FIG. 33 ; 
       FIG. 35  is a rear view of a banner display system utilizing the central hub member of  FIGS. 33 and 34 ; 
       FIG. 36  is a side view of the banner display system of  FIG. 35 ; 
       FIG. 37  is a fragmentary view showing locking system for a back-to-back arrangement using two central X-members; 
       FIG. 38  is an enlarged perspective view of the double connector of  FIG. 37 ; 
       FIGS. 39A and 39B  illustrate a wall fastening arrangement such as that utilized in  FIG. 40 ; 
       FIG. 40  is a fragmentary exploded view partially in section and with parts cut away illustrating an arrangement in which the display system is fastened in a snap-fit arrangement to a wall; 
       FIG. 41  depicts a schematic view of the wall fastening system of  FIG. 40  as used to connect a multi-faceted conglomerate display to walls and floor; 
       FIG. 42  is a partially blown apart fragmentary view of a central hub member and a connecting stabilizing leg as shown in  FIGS. 34-36 ; and 
       FIGS. 43A-43D  illustrate adaptations of a tripod leg to the system of FIGS.  33 - 36 . 
   

   DETAILED DESCRIPTION 
   It will be appreciated that the present invention provides a compact, light weight, self-contained support system that comes apart quite easily for storage and transport and that readily assembles without tools into a resilient versatile banner display system with many configurations and applications. This system represents an excellent mode for displaying a banner, photomural, sign or other flexible information conveying display device capable of being carried between spaced mounting rods in an adjustably, generally vertical setup. Hubs and connectors are generally quite interchangeable and many structures convert among a variety of arrangements. The embodiments shown in the drawings illustrate the concept of the system but are not intended to be limiting in any way with respect to other variations which might occur to those skilled in the art. The system can be utilized indoors or outdoors and several devices for holding the displays in place are also illustrated below. 
     FIGS. 1-3  show the general concept in assembly of the banner display system of the invention in which a banner, generally at  10 , and having at its ends mounting loop segments  12  and  14 . The loop segments  12  and  14  are designed to slip over respective hollow mounting tubes  16  and  18 . The hollow mounting tube  16  is provided with end hubs  20  and  22  and, likewise, rod  18  is provided with the mounting hubs  24  and  26 . The mounting tubes are held spaced apart by a pair of elongate segmented flexible hollow strut members  28  and  30  with strut member  28  being made up of individual segments  32 ,  34  and  36  and strut member  30  being assembled from segments  38 ,  40  and  42 . The strut members  28  and  32  are assembled using slip joint members as at  44  which fit the inside diameter of the adjacent hollow strut section as at  46  (FIG.  2 ). The hollow flexible strut members  28  and  30  are further provided with terminal pins  48 ,  50 ,  52  and  54 , respectively. The terminal pins are designed to be accommodated in corresponded angled openings in the hub members of the hollow mounting tubes such as  20  which is featured in the enlarged perspective view of FIG.  3 . 
   Hub  20  and the other hubs described herein are typically machined from an aluminum alloy such as 211T3 aluminum. Hub  20  is provided with a necked-down (shank) section  61  designed to fit into the hollow mounting tube  16 . The remaining portion of the hub protrudes out of the tube and is provided with a recess  60  designed to accommodate the pin  48  as illustrated in the blown apart view of FIG.  2 . The opening of the recess  60  is laterally wider than the diameter of the terminal pins so that the terminal pin may be accommodated despite variations in the addressing angle along in the direction of the elongation with respect to the hub member  20 . The hubs  20 ,  22 , and  24 ,  26 , are, in turn, held in the ends of the respective upper and lower mounting tubes  16  and  18  by cords connected through inner openings in section of further reduced diameter  62  the hub such as illustrated in at  63  countersunk at  64  to prevent cord damage. 
   The segmented flexible hollow strut members  28  and  30  are respectively held together by internal resilient cord members  64  and  65  which are connected between the terminal pins as at  48  and  50  in the case of strut  28 . The terminal pins  48  and  50  contain cord connection openings (not shown), but which are similar to opening  61  in the hub member  20  for attachment of the resilient cord. 
   The composite flexible hollow struts or braces  28  and  30  cross behind the banner  10  to cross brace the structure when each of the ends is inserted in the respective proper opening in the hub as at  60  in hub  20  illustrated in FIG.  3 . The crossing position is provided with a retaining strap member as at  66  (as shown in  FIGS. 1 and 2 ) and, as also evident from the figures, the flexible hollow struts become somewhat bowed as they support the banner  10  in tension forcing the upper and lower mounting tubes  16  and  18  apart. 
   The system is further provided with an integral connected triangular-shaped stable support base that includes a pair of hollow tube base members of equal length  70  and  72  which form an isosceles triangle with the lower hollow mounting rod  18  connected by respective eyelets  74  and  76  which are designed to accommodate terminal pins  54  and  50 , respectively, prior to those terminal pins being inserted in the respective hubs  20  and  26  of the lower mounting tube member  18 . In this manner, one end each of the members  70  and  72  are attached to the lower hollow mounting tube  18 . The remaining ends converge and are further connected with a segmented stabilizing tube member  78  having segmented portions  80  and  82  and which connects between the strap  66  and the converging free ends of the members  70  and  72  at  84  assuming thereby a generally vertical posture. As can best be seen in  FIG. 2 , the entire supporting structure including members  70 ,  72  and  78 , together with eyelets  74  and  76 , are interconnected and also connected to the strap  66  via a continuous common resilient cord loop as at  86 . 
   Once assembled, the banner support system can be moved about and picked up by grasping the back in the vicinity of the strap  66  as it remains quite stable. As shown in  FIG. 5 , assembled member  78  becomes a vertical stabilizer between the intersection of the flexible struts  28  and  30  and the corner of the triangular base at  84 . This provides a structure which geometrically includes at the same time many triangles which create a very stable structure. 
     FIG. 6  depicts that the posture of the whole structure can be tilted forward and backward simply by changing the angle between the member  78  and the vertical pull that whole structure back or push it forward and it will remain stable in the extreme positions or in any position therebetween because of the elastic nature of the assembly.  FIG. 6 , though not limiting, illustrates a 30° range which includes tilting the banner forward 15° at  90  and back 15° at  92 . The vertical position being shown at  94 . The elastic nature of the assembly utilizing a plurality of resilient cord members results in a structure which is stable and supportive, yet can be shifted or distorted and one which will remain in the shifted position. 
     FIG. 7  shows the same structure in a staked or outdoor application. Whereas the normal application is indoors where the banner system is not subjected to wind or other disturbances which may cause it to blow down, it can be readily staked outdoors as by cords  100  and  102  as shown in FIG.  7 . In addition, the members of the base triangle may also be staked to the ground as shown at  104 ,  106 ,  108  and  110 . 
   Another outdoor or indoor stabilization system is shown on  FIGS. 9A-12 , triangular sand bags, water bladders or other such shapes, or the like, can be connected to hold down one or more of the lower base members to retain the system in place, if desired.  FIG. 9A  depicts a plan view of a water bladder generally at  120 . A triangular outline depicting the full equivalent right triangle at  122  and a solid line depicting the actual shape at  124 . A hook and loop attaching system may be utilized with the water bladders and hook patches are represented as at  126 ,  128  and  130  with loop patches illustrated at  132 ,  134  and  136 , respectively. The side elevational view of  FIG. 9  illustrates a similar bladder with a filler cap at  138  for the addition of water as the weighting material. 
     FIG. 10  illustrates use of a hook and loop connecting system in which a hold-down connecting member  140  is looped about a base tube member as at  70  and also connected by a second hook and loop connection at  142  to a bladder as at  120 . 
     FIGS. 11 and 12  further illustrate the placement of single and multiple water bladders relative to smaller and larger triangular bases at  156  and  152 . In this manner, a variety of such weighted water bladders can be combined to hold down large or small triangular bases in any configuration and simply hook together utilizing hook and loop connecting systems thereby providing the necessary additional weight to stabilize the base without interfering with the display. 
     FIGS. 8 and 8A  depict the placements of the banner support or display stand systems of the invention back to back to display banners in opposite directions somewhat like the concept of the tradition sandwich board. Thus, two system  160  and  162  mounted back to back can further be connected by top and bottom members as at  164 ,  166 ,  168  and  170  to form a composite box structure for added stability. It will further be appreciated that such a box structure can accommodate 4 individual units at 90° to produce a 4-banner, 4-sided display. 
   To assemble the banner display support system of the invention, the terminal pins of the flexible X-bracing struts  28  and  30  can readily be pulled out of the hubs on the upper and lower mounting rods and thereafter the system simply can be collapsed into its elemental states by tensioning the cords in the members  28 ,  30 ,  78  thereby reducing them to their segmental size. These, along with the two banner mounting tubes, possibly with the banner still attached or with the banner removed and rolled up, can easily be stowed within a rather small container such as a rounded canister for storage and transport. The system, thus, is a knock-down or collapsible, readily assembled banner stand which has flexibility and versatility realizing that the banner can be displayed at any of many angles forward and back of the vertical and can be staked or otherwise held for outdoor applications. The system simple of construction requiring only elastic cord elements and segmentally slip jointed tubing with terminal pins, together with a pair of banner mounting tubes having resiliently connected end hubs designed to adjustably accommodate the terminal pins. It will be appreciated that any flexible fabric can be used for the banner including flag nylon, velvet loop, wall carpet, vinyl, other polymers and even some papers. Graphics can be one or two sided and the banner may be reversible. Many patterns can be described using multiple units and, of course, any number of banners can be interchanged using the same structure. It will further be appreciated that the structure can be made any desirable size and utilize fewer or more interconnected segments at the discretion of those skilled in the art and remain within the confines of the scope of the invention. 
   An important aspect of the invention is the relative simplicity of the concept of the self-contained support system of the invention together with the adaptable versatility that enables the system to expand and be easily modified to accommodate a proliferation of useful forms.  FIGS. 13A-13C  depict the formation of a linear combination of the triangular base embodiment of  FIGS. 1-7  in which any number of banners  10  may be consecutively mounted and aligned to produce a larger photomural or banner or to display different images consecutively. Add-on or consecutive assembly can be achieved by simply replacing the single ended, single bore type hubs, such as shown at A in  FIGS. 14A and 14B , with double ended, dual bore hubs, as shown at B in  FIGS. 15A and 15B , where banners are to be joined. In this manner, the hub will accommodate successive cross brace or strut members as at  30  and  28 A in FIG.  13 B.  FIG. 13C  depicts the attachment of additional units with the last hub being depicted as A or B depicting the option of adding additional units to the display or terminating it at that point. 
   The bore  200  of the A hub of  FIG. 14A  is shown inserted into an end fragment of a tubular member  16  and without the tubular member in  FIG. 14B  with bungee cord eyelet  202 . These eyelets are as previously described in accordance with other embodiments. Likewise, the double ended, dual bore version B is shown inserted into fragmentary tube  16   a  and  16   b  in FIG.  15 A and bungee bores  208  and  210  are shown in  FIG. 15B  without the tube  16   a  and  16   b.    
     FIGS. 16A and 16B  illustrate an alternative self-latching or self-locking hub arrangement which may be utilized with any of the hubs illustrated. In this arrangement, each hub A, B or C ( FIGS. 22A and 22B ) is provided with a bore  200  having a central opening  220  that is smaller than the adjacent recesses  222  and  224  of larger bore on either side thereof thereby forming a narrowed or necked-down passage. Each corresponding strut terminal pin or other terminal pin on the hubs has a corresponding end knob as at  228  of a diameter slightly larger than the remainder or shank of the pin. The knob  228  is just able to slip through the central opening  220  in the bore  200  as shown in FIG.  16 A. In  FIG. 16B , the end knob  228  is beyond the central opening  220  and so is due to resume an angled posture in accordance with the bowing of the strut the knob  228  thereby preventing withdrawal of the pin  226  and locking the strut in position. The rectangular systems also lock in a similar manner as will be described below. 
     FIGS. 17A and 17B  illustrate different rectangular or tower banner display arrangements, generally at  232  and  234 , respectively, suitable for mounting two, three or four banners about the size of the assembly. In this arrangement, four upper tube members as at  236 ,  238 ,  240  and  242  and four corresponding lower tube members as at  236   a ,  238   a ,  240   a  and  242   a  are provided. Back-to-back X-bracing strut configurations similar to those previously described in conjunction with the triangular system are provided which converge centrally as at  244  and are retained as by a strap member  246 . Detail of these need not be repeated. Two X-braced strut configurations suffice to create a sufficient and stable tension balance in the structure to support and expand 2-4 banners. 
   As indicated by the letters in  FIG. 17A , the opposite and parallel cross tube members  238  and  242  carry terminal hubs of a type C ( FIGS. 22A and 22B ) which include a terminal pin having a knob  248  with a smaller shank  250 , a single bore  252  and cord tie opening  254 . The pair of tube members at right angles to these and parallel to each other, tubes  236  and  238 , carry type A hubs (FIGS.  14 A and  14 B), the bores of which accommodate the terminal pins of the type C hubs, with locking knobs  248 . The openings or bores as at  252  in hubs C correspondingly accommodate the terminal pins of the X-braced struts which lock in the manner illustrated in conjunction with  FIGS. 16A and 16B . Upon assembly, the strut braces, of course, are locked into the bores in the hub C and so to the ends of the corresponding tubes  238 ,  242  and  238   a  and  242   a . Consequently, the struts push the quadrilateral end structures apart to tension any banners mounted therebetween and, at the same time, force the knobs  248  of the hubs C off center in the corresponding hubs A, thereby concurrently completing the self-locking of the assembly. 
   These rectangular or “box-kite” banner display embodiments are light, but very stable, as locked into place and, as shown in  FIGS. 19 ,  20  and  21 , can be arranged as arch or bridge structures as at  260  and for uses as horizontal configurations as at  270  and  280 . 
   The quadrilateral or box-kite display systems also readily lend themselves to being joined in multi-unit consecutive arrangements as illustrated in  FIG. 18  at  290 . In that arrangement, as in the consecutive triangular base arrangements of  FIGS. 13B and 13C , joined or can be accomplished by simply replacing the type A hubs with type B hubs ( FIGS. 15A and 15B ) in the intermediate units which will serve to self lock the units together upon assembly. 
   Another embodiment of an X-braced banner display in accordance with the invention is the subject of  FIGS. 23 and 24  in which an X-braced mounted banner, generally  300 , is mounted on a conventional tripod, generally  302 . That embodiment includes X-braced strut members  304  and  306  tensioning a banner  308  between mounting rods located beneath  310  and  312 . The tripod  302  is provided with a mounting clamp, one side of which is shown at  314  in the enlarged detail of  FIG. 24 , which attaches to the tripod  302  in a well-known fashion by means of a threaded connection at  316 . The clamp with its opposite side, not shown, is fixed to the intersection of the X-brace members  304  and  306  as by using a plurality of threaded fasteners at  318  to fix the clamp members together over the X-brace. This arrangement can be used to support and carry a photo background of any color or reflectivity, in a highly maneuverable manner as for photographic background or accent in studio work. In addition, the system may be animated by connection to a mechanized means, if desired. 
   Any of the connected unit multi-banner systems and the single unit rectangular systems may also be tethered or otherwise anchored for outdoor use. The X-bracing construction and banner support assembly and disassembly of those embodiments of  FIGS. 13A-13C ,  17 A- 20  and  23  is as described in relation to the embodiments of  FIGS. 1-7 . The multiple embodiments described serve to illustrate the adaptability and versatility of the banner display system of the invention. 
   Another aspect of the invention is depicted in  FIGS. 25A-25C  which illustrate several multiple unit configurations using in-line and/or hinged unit connectors between adjacent mounting rods. Some individual units as at  340  include top and bottom mounting rods  342  spaced by X-brace poles  344 , the intersection of which may be retained as at  346  by a strap member as above or by other devices such as shown in  FIGS. 27L and 27M  or a snap-together, snap-on hub as disclosed in conjunction with FIG.  27 K. This baseless unit tensions and supports banners or murals retained as indicated by the broken line  345  but is not self-supporting and is usually used in combination with other self-supporting units, which may include an integral cord-retained triangular support base as at  348  and as has been described or a snap-fit removable stand base such as that shown in FIG.  31  and which readily adds to any baseless unit. The consecutive mounting rods of the multi-unit display assembly may be joined by common hinged or swivel fittings as at  350  or linear or in-line connectors  352  which add configuration flexibility. Examples of some fittings are better illustrated in  FIGS. 27A-27E  where they are greatly enlarged. As will be explained, these fittings or parts are designed to interchangeably snap fit together and pull or pop apart to disconnect and allow the user to readily connect and disconnect the units from each other and readily alter arrangements in multiple unit configurations. The parts themselves of more than one piece also come apart in the same manner although fits are tighter. 
   The combination of units with integral supports (self-supporting) and baseless units that may combine with attachable bases, together with the use of interchangeable in-line and hinged pivoting connecting devices allows multiple unit systems to be configured and reconfigured in almost any arrangement imaginable. Several of these are depicted in the  FIGS. 25A-25F . The compact closed triangle structure  354  in  FIG. 25C  is formed by three units without support bases connected by hinged fittings to form a unitary structure. The swept-back structure  356  of  FIG. 25A  may or may not have snap-on or integral bases.  FIG. 25B  shows a linear system that combines units with triangular bases  348  with a connected base-free unit.  FIG. 25D  shows yet another possible in-line combination at  358 .  FIGS. 25E and 25F  depict still another arrangement or structural booth-type concept.  FIGS. 25E and 25F  include an integrally snap connected forward angled top panel unit  361  that provides a closed overhead booth look. This structure will often be adorned by a top horizontal front header banner or other device not shown.  FIG. 25F  is similar to  FIG. 25E  but includes additional flanking units  262  and  263 . 
   The  FIGS. 26A-26D  illustrate a plurality of polygon arrangements at  364 - 367  in which the units are connected end to end. In these arrangements, consecutive mounting rods or members may be connected as by fittings such as shown in  27 E. 
   It will be recognized that the versatility of the system concept enables one to mount and configure multi-banner or mural arrangements in almost any shape. The multiple murals or banners can together depict one large scene or a plurality of smaller graphics. Those extending in multiple directions, of course, can also show the same or different graphics to be viewed from the several directions. 
     FIGS. 27A-27M  depict typical fittings for use with the systems, including but not limited to, hubs and hinged or rotating connecting devices and straight or in-line connecting devices useful for the assembly of many multiple unit system configurations.  FIGS. 27A-27C  depict hinged connectors typically capable of at least 240° of rotation and  FIG. 27E  depicts a rotating connector with full (360°) rotation so that it may be used as a U-connector.  FIG. 27D  depicts an end cap for insertion in the last mounting rod end in any sequence. In these figures, a press fit end hub is shown at  370  having an end  372  adapted to fit into one end of a top or bottom mounting rod (not shown) and which may be attached to another end hub at the opposite end of the mounting rod by a resilient bungee cord device or the like in a manner as previously described. The opposite end of the end hubs  370  includes an enlarged knob  374  designed for snap fitting into sockets of similar shape as illustrated at  376  in the figures to be removably snap fit and held in place by shoulder  378 . The ports  370  also typically include locking hub bores  380  designed to cooperate with the end hubs of X-brace cross members in a manner previously described with reference to  FIGS. 16A and 16B . 
   The  FIGS. 27A-27C  illustrate press-fit, hinged locking sleeves which include mutually relatively rotating, hinged parts  384  or  384 A and  386  which also pop apart if desired. Part  384  includes a hub  385  and hinge pin rivet  388  onto which part  386  is pressed or snaps held by pin hub  389 . In  FIG. 27C , there is depicted several angles of rotation in phantom. These include a 60° (120° from linear) angle necessary for the three unit equilateral triangle set up of  FIG. 25C and  90° useful for rectangular or wing back configurations. Of course, any angle within the allowable pivoting arc is available. Integrally molded stops on one section of the press fit device can be used to limit rotational travel. The end cap of  FIG. 27D  is illustrated at  390 . As previously indicated,  FIG. 27E  depicts another rotating connector which fully rotates and can be configured in the form of a press fit U-connector  420  for joining adjacent parallel mounting members as in the consecutive end-to-end polygon arrangements of  FIGS. 26A-26D . Even this connector is a press fit or snap-together system in which identical parts  422 , each containing an end hub receiving recess and locking recess  424 , themselves include pivots  426  which carry the numbers  422  in common block  428 . This fitting is adapted to connect consecutive mounting members fragments of which are illustrated at  430 . 
     FIGS. 27F and 27G  illustrate one end tip or end hub/bungee arrangement. The end hub  400  includes a bore  402  adapted to receive one end of a bungee cord  404  shown in cut away in FIG.  27 G and which cooperates with opposed wedge slots  406  to wedge-trap and fix or trap the end of the cord  404  when the hub  400  is inserted in a tube member of appropriate size.  FIG. 27H  depicts a press fit end tip or hub  410 , a recessed retainer band  412  and no provision for bungee connection. 
   The  FIG. 27H  depicts yet another composite press-assembled connector at  440  which provides for an additional snap-in recess-containing rotating member  442  connected to provide a modified version of the concept of  FIG. 27E  using a common connector base  444 . The components of these devices also can be separated and re-press fit together as desired. 
     FIG. 27K  depicts a removable snap-together or press fitting, snap-on hub arrangement  450  designed to retain the X-brace members at the intersection thereof in the manner of the strap  66  in  FIG. 1 , or  FIGS. 27L-27M , including snap-together or press fit segments or halves  452  and  454  joined by snap connector  456 . Recesses  458  and  460  are provided to accommodate the X-brace struts of any of the embodiments. Optionally, a further connector  462  may be provided to connect at right angles to a vertical strut (as at  584  in  FIG. 31 ) of a removable base unit discussed below in conjunction with FIG.  31 . Of course, this device, like the others while when press fit or snapped together will remain in place indefinitely, is designed to be popped open and removed in accordance with the knock-down rearrangeable design concept of all of these configurations. 
     FIG. 27J  depicts a flexible 3-way connector  470 , including 3 connecting devices  472 ,  474  and  476  which may be male or female connectors and are illustrated as female connectors for use with bungee cords as at  478 , including recesses as previously shown  424 . The connectors are connected to a central hub  480  and may connect to a vertical and two horizontal or coplaner members via cords or snap fitting to provide a support base. It will be recognized that both the displays and the display fittings that join them together are designed to the extent feasible to snap together and come apart as needed. This device can be used in conjunction with the hub of  FIG. 27K  in the construction of the removable base support unit as discussed below in conjunction with FIG.  31 . 
     FIGS. 27L and 27M  depict an alternative system for retaining the X-brace members in stable configuration in which a flexible strap  484  having bores  486  for receiving an X-brace tube is assembled on the member  492  so as to form a loop  488  to contain the crossing member  490  as shown. 
   The fittings illustrated just above, like those previously described, may be fabricated from lightweight aluminum alloy, formable polymeric materials, fiberglass or any other suitable materials. Those illustrated in  FIGS. 27A-27M  are preferably extruded or cast from any of a variety of polyamide materials, particularly nylons, however, any suitable, dimensionally stable and functional material will do. 
   An important aspect of the present invention is the provision of a light weight knock-down or collapsible display system of the class described, but which itself is capable of assuming a variety of sizes. In embodiments of this system, both the mounting rods and the cross or X-brace legs or rods can be constructed to be extended and collapsed to provide a variety of display system sizes by accommodating a variety of banner and mural sizes. Components of systems illustrating this concept are depicted in  FIGS. 28A-28B ,  29  and  30 A- 30 E.  FIGS. 28A and 28B  show two sizes extendable X-brace rods  500  and  502 , respectively, while  FIG. 29  depicts one size of mounting rod  504  in which the details are enlarged. 
   As seen in  FIGS. 28A and 28B , each of the X-brace legs or rods includes a plurality of rod segments including a pair of telescoping segments  506  and  508  and end segment  510  and one or more intermediate segments  512 . Note that the device of  FIG. 28B  contains one additional segment  412  to enable it to extend beyond the length of the rod in FIG.  28 A. The mounting rod of  FIG. 29  shows only a pair of telescoping rods  514  and  516 . It will be appreciated that these also can be of varying lengths. The rods of  FIGS. 28A and 28B  further include pairs of end hubs  518  and internal bungee cord as at  520 . The system of  FIG. 29  further includes press fit end hubs  370  as previously described including locking hub bores  380  which are designed to accommodate the hubs  518  in the X-brace devices in a locking manner as previously described. Hinged connectors are also shown at  520 . 
   A locking mechanism for the telescoping tubes depicted generally by  522  in mounting tube  520  is best shown in the enlarged views of  FIG. 29 ,  FIG. 30A ,  30 B and  30 D. It includes a press fit hub section  524 ,  526  or  528 , with hubs  526  and  528  showing different configurations at  530  and  532 , respectively, to accommodate resilient bungee cord devices (not shown) in multiple-sectioned models. 
   The locking devices themselves include a pair of relatively movable wedges in the form of a fixed wedge  534  and a movable wedge  536  which has a central bore threadably mounted on a screw device  538 , which extends into the member  534 . Thus, by rotating the members  506 ,  508  or  514 ,  516  relative to each other the wedges slide past each other expanding to lock against the interior of the tubes and reducing the relative size of the configuration of the wedges  534  and  536  to unlock the tubes in any desired telescoped position. The amount of permitted relative elongation of the system is, of course, governed by the relative length of the tube sections  506 ,  508  and  514 ,  516 . This is typically from about 12 inches (25.4 cm) to about 24 inches (50.8 cm), but can be any desired amount. 
   Still other telescoping embodiments, or embodiments which can optionally be made size variable, are depicted in  FIGS. 31 ,  32 A and  32 B.  FIG. 31  depicts an optionally self-supporting structure of variable size  550  there shown configured as a work supporting easel and including top and bottom transverse members  552  and  554  which may also be constructed to be length adjustable and telescoping although not shown so in the drawing and telescoping side members  556  and  558  which join as described hereafter to form a quadrilateral structure. The transverse members  552  and  554  are provided with removable press-fit hub members  560  which of threaded expose shafts  562  and openings for locking end hubs  518 , as has been described. The side members  556  and  558  also are provided with press-fit hubs  564  having bores  566  designed to accommodate the threaded shafts  562  of the hubs  560  and nurled finger-tightenable knobs  568  with threaded bore shafts  570  are provided to complete the four-corner connections. The hubs  564  are also provided with snap-fitting knobs  572 . The easel also has lower supports or work holders  574  which attach as two parts to be secured around the members  556  and  558 . Upper work retainers are depicted at  576  attached to the member  552 . 
   Telescoping X-braces or struts  578  are also provided and held in place at their intersection by a snap-together hub such as that previously described at  450  which also connects to a support base formed by telescoping members  580  and  582  via a telescoping strut member  584 . The three members are preferably joined at  586  by a flexible 3-way connector as previously described with reference to  FIG. 27L  at  470  and members  580  and  582  also snap fit connect to the hubs  564  via rotating connectors  588  which may be the same as or similar to those shown in  FIGS. 27A-27C . The remaining or top end of the strut  584  connects into the snap-on hub  450  using a connector such as that shown at  472  in FIG.  27 M. Once assembled, the easel provides a rigid support structure for carrying fairly heavy work loads but is one which can also be readily disassembled as desired. 
     FIGS. 32A and 32B  depict an A-frame-type system  600  with a mural or banner shown mounted over the A-frame in  FIG. 31B  at  602 . The system itself includes a quadrilateral base having parallel members  604  and  606  spaced by connected cross members  608  and  610 . These are joined together by snap-fit hubs, previously described, which enable the assembly of a stable quadrilateral base structure. Central hubs  612  and  614  are provided with one or more spaced bores  616  to accommodate the end hubs of X-brace cross members  618  and  620  which may be telescoping in nature. The X-brace or strut members also connect, as previously described, to the end hubs  620  and  622  of a top mounting member  624  and the length thereof is adjusted to hold the mural or banner  602  taunt between the members  604 ,  606  and  624 . The inner section of the cross braces or X-braces  618  and  620  may be provided with either a strap or a snap-fit hub as previously described (not shown). 
   It is an important aspect of the invention that the versatility of the systems described be recognized. Thus, the various knock-down structures can be reassembled in the same or other ways to produce a variety of final structures of numerous sizes to accommodate a wide array of graphic materials. Hubs and associated connectors are fully interchangeable. The triangle stand base, for example, is also made to be readily added or detached as necessary from certain of the banner-carrying or mural-carrying single units. 
   Additional embodiments of knock-down lightweight display supports are illustrated in  FIGS. 33-36  in which the triangular base arrangement such as shown in  FIG. 13A-13C  and  25 A- 25 F may be replaced with a stabilizing tripod leg arrangement in snap-fit integral combination with an X-braced banner support configuration characterized by a central hub member which may be in the form of an X-shape which serves to retain both the cross braces and a pivotal tripod leg in an adjustable relation which conveniently allows the banner display system to be self-supporting either in a vertical or horizontal disposition. This simplified system further readily enables snap-fitting, back-to-back and wall mount versions by substituting a double-ended connector for the tripod leg connector device. Side-to-side and other multiple banner arrangements using connector devices previously discussed as in regard to  FIGS. 16A-B ,  22 A-B and  27 A-H and telescoping members such as shown in  FIGS. 28A-B ,  29  and  30 A-E may also be used. 
   The core of this arrangement is a central hub system, one embodiment, generally at  700  (FIG.  33 ), includes a main unitary molded central hub  702  provided with diverging integral leg-receiving recesses  704 ,  706 ,  708  and  710  which combine to form a distinctive “X” pattern shown carrying respective brace members in slip-fit arrangement depicted by fragments  712 ,  714 ,  716  and  718  which represent X-brace members or struts which may be similar to those depicted at  578  in  FIG. 31 , for example. A further snap-fit leg pivoting and rotating, stabilizer attaching member  720  (seen better in  FIG. 34 ) is provided which carries an additional stabilizing or tripod leg  722  that slips into recess  724 . The leg  722  forms a back stabilizing or a rear tripod leg with the two adjacent brace members. The member  720  with leg  722  is capable of swiveling between stops in either direction to achieve any vertical or horizontal disposition so that the “X” form can be used to support a display in any desired disposition. The system provides the tripod base support without the need for horizontal segments such as at  580  and  582  in FIG.  31 . 
   A side view of the system of  FIG. 33  is shown in  FIG. 34  which includes a snap-fitting connector  730  which has a knob  732  to snap fit into a similar recess  734  in the member  702 . The connector member  730  is of a shape similar to that connector depicted at  374  in  FIGS. 27A-27E  and is retained from easy separation but freely pivots or rotates in the recess  734  so that the member  720  with inserted tripod support leg  722  can pivot between stops as desired to display a corresponding mounted banner in different orientations. Stops to maintain the selected position are provided by the interaction between shaped recesses  736  in the member  702  arranged in a pattern such as a cross which coincides with a pattern of raised areas or knobs  738  in the member  720 . These snap into position to support predetermined radial locations such as every 90°. 
   The central hub system  700  in  FIGS. 33 and 34  is shown as part of a self-supporting banner display support system in  FIGS. 35 and 36 . As can be seen in those figures, the X-brace members or struts  712 ,  714 ,  716  and  718  may further be curved as desired. Mounting rods are shown at  742  and  744  carrying a banner shown at  740 . Three point stability is provided by the leg  722  with foot  746 . 
     FIG. 42  depicts an exploded perspective view of the assembly of the snap fitting stabilizing leg pivoting and rotating member  720  into the X-member  702 . This illustrates a 90° rotate/fixed position system with the recesses  736  and raised area  738 . 
     FIG. 37  shows a back-to-back double banner display  750  in which two central hub member connected systems are fastened together using a snap-in double ended connector  752  (see also  FIG. 38 ) to replace the single ended connector system  730  in  FIG. 34  to fasten two display systems together in back-to-back arrangement obviating the need for a stabilizing tripod leg for either. 
   The snap-in double connector  752  can also be used to fasten a display system to a wall or the like as shown in the blown apart view of FIG.  40 . This arrangement uses a wall securing feature shown in greater detail in the exploded views of  FIGS. 39A and 39B .  FIG. 39B  illustrates a plurality of fastening segments  760 , in having a base  761  including holes  762  which may be countersunk for use in securing each segment to a wall or other mounting area. Each segment also features an integral snap-in receptor  764  shown better in FIG.  39 A and the segments are designed to break apart from a larger multi-segment system as at  766 . One segment is shown mounted to a wall fragment  770  using wall fasteners as at  772  in FIG.  40 . 
   As shown in  FIG. 41 , the fastening segments can be used to fasten multiple displays as at  774  both to walls and floors. Any of the compatible snap-fitting knob and shank connectors illustrated in previous figures and embodiments can be used in this manner to fasten units together and to walls, floors or even ceilings. As can be seen, the extent and shapes of such an exhibit have almost endless possibilities. 
   Enlarged view  43 A depicts a foot  746  provided for the tripod leg  722  and the tripod leg itself may be any desirable length as shown as multi segmented in  FIG. 43B  to adjust the height of the vertical or horizontal display. Thus, segments as shown at  722 A and  722 B may be used.  FIGS. 43C and 43D  depict vertical and horizontal arrangements schematically. 
   The arrangements depicted in  FIGS. 33 through 40D  can be any desired size and also use telescoping parts such as shown in  FIGS. 28A ,  28 B and  31  and the struts and mounting rods may be solid or hollow fabricated of metal such as aluminum alloy, formable polymeric materials, fiberglass or other construction materials depending on the design. The connector and hub members are generally of extruded or cast polyamide materials, particularly nylons, however, any suitable, easily formed and dimensionally stable material may be used here as well. 
   This invention has been described herein in considerable detail in order to comply with the Patent Statutes and to provide those skilled in the art with the information needed to apply the novel principles and to construct and use embodiments of the example as required. However, it is to be understood that the invention can be carried out by specifically different devices and that various modifications can be accomplished without departing from the scope of the invention itself.