Abstract:
A freestanding display rack used for supporting and displaying product at a point of sale. The display rack is made entirely of fiber recycling chains and can be shipped in a knocked-down flattened condition. The display rack comprises a pair of spaced apart side panels and a plurality of shelves extend between and supported at their opposite ends on the side panels by a plurality of mechanical interlocking engaged between the shelves and the side panels. The plurality of mechanical interlocking means comprise slots in the side panels and tabs integral with the shelves on opposite ends thereof extended through the slots. An opening formed in an end of each of the tabs projecting through the slots in the respective side panel. A locking pin inserted in each the opening to prevent withdrawal of the tabs from the slots. A graphics header extends above the shelves and side panels.

Description:
FIELD OF THE INVENTION 
       [0001]    This invention relates generally to display racks for supporting and displaying product at a point of sale. More particularly, the invention relates to a fully recyclable display rack made of interlocking panels of fiber-based material such as containerboard, wherein the rack may be shipped disassembled in a compact package and quickly and easily assembled at a point of sale without requiring the use of tools. 
       BACKGROUND OF THE INVENTION 
       [0002]    Many products for sale to the general public are commonly supported and displayed at the point of sale on free-standing racks placed in prominent locations for maximum visibility and easy access to the product. Graphics are commonly applied to the racks to enhance visual attraction to the displayed product. These racks must be of sturdy construction to support the weight of the displayed product and to withstand the rigors of prolonged use in a retail environment. Accordingly, conventional racks of this type are typically constructed from permanent display materials such as wood, metal, and plastics. These displays are fairly costly to manufacture and ship, making them expensive to purchase and to deploy through Direct Store Delivery (DSD) systems. If they are shipped unassembled, substantial labor and the use of tools is generally required to erect them at the point of sale. Further, they are not easily recyclable and are never or rarely recycled, ending up instead in landfills. 
         [0003]    It would be desirable to have a stand-alone display rack for displaying product at a point of sale, wherein the rack is fully recyclable, may be shipped disassembled in a compact package, and may be easily and quickly assembled at the point of sale without requiring the use of tools. 
       SUMMARY OF THE INVENTION 
       [0004]    The present invention comprises a stand-alone display rack for displaying product at a point of sale, wherein the rack is fully recyclable, may be shipped disassembled in a compact package, and may be easily and quickly assembled at the point of sale without requiring the use of tools. 
         [0005]    The display rack is constructed from a plurality of mechanically interlocked structural components and graphics panels made of 100% recyclable fiber-based materials such as containerboard, whereby the rack can be recycled very efficiently by utilizing existing fiber recycling supply chains at retailers or by utilizing the vendor&#39;s internal supply chains. The structural components are made of laminated sheets of material and are held in assembled relationship by interfitting tabs, notches and slots. The components are extremely lightweight, particularly relative to their strength, are easy to transport, and are capable of being set-up within the retail environment in less than 6 minutes. The manner in which the various structural components and graphics panels fit together, as described hereinafter, provides a distinct advantage in terms of structural performance and ease of assembly, permitting the display racks of the invention to be efficiently deployed in the retail environment. 
         [0006]    In a first preferred form of the invention the structural components include opposite side panels and shelves supported by the side panels, with the shelves and product supported thereon being visible and accessible both at the front and at the back of the display rack. The side panels comprise laminated sheets of corrugated material, and have spaced slots formed therein. The shelves comprise laminated doublewall sheets wrapped in a singlewall outer layer. This design provides superior strength across the span of the shelf and also provides finished exposed edges. Tabs on the ends of the shelves are inserted through the slots in the side panels, and locking pins are inserted through openings in the ends of the tabs that project through the slots to prevent withdrawal of the tabs from the slots. Graphics panels are held on the side panels by tongues on the graphics panels inserted through the openings in the projecting ends of the tabs on the shelves. 
         [0007]    In a second preferred form of the invention, the structural components include a back panel, opposite side panels, and shelves supported by the back panel and side panels. Interfitting tabs and notches along adjacent side edges of the back and side panels hold the back and side panels in aligned assembled relationship. The side panels comprise laminated sheets of material forming channels extending front-to-back, and the shelves have flanges formed on their opposite side edges that engage in the channels on the side panels. The back panel has spaced slots, and tabs extending from a rearward edge of the shelves extend through the slots. As in the previous form of the invention, a locking pin is inserted through an opening in the end of the tab that project through the slot. Graphics panels are applied to the side panels. 
         [0008]    In a third preferred form of the invention, the structural components include a back panel, opposite side panels, shelves supported by the back panel and side panels, and support rods extending between the shelves near forward edges thereof. Interfitting tabs and notches along adjacent side edges of the back and side panels hold the back and side panels in aligned assembled relationship. The shelves in this form of the invention also comprise laminated doublewall sheets wrapped in a singlewall outer layer. The back panel has spaced slots formed therein, and the side panels have spaced openings in substantially the same plane as the slots in the back panel when the components are assembled. First tabs projecting from the rearward edge of the shelves extend through the slots in the back panel, and second tabs projecting from opposite ends of the shelves extend through the openings in the side panels. A locking pin is inserted through an opening in the end of the tabs that project through the slots. A graphics panel extends across the outside of the back panel and the side panels. Tabs on forward edges of the graphics panel wrap around the forward edges of the side panels and are frictionally engaged between adjacent shelves to hold the graphics panel in place. 
         [0009]    In a variation of the third form of the invention, the structural arrangement is essentially the same, but the graphics panel differs in that it has a first part that extends over a portion of the back panel, a second part extending across one side panel, and a third part extending over a portion of the front of the display rack. The tabs on the shelves that extend through slots in the back panel also extend through slots in the first part of the graphics panel, and the locking pins inserted through the projecting ends of the tabs hold the first part of the graphics panel to the back panel. Adhesive means on the third part secures the third part to the forward edges of the shelves, and together with the tabs and locking pins at the back panel serve to hold the graphics panel to the display rack. 
         [0010]    A graphics panel header is provided in all forms of the invention. 
         [0011]    Composition of the corrugated materials on certain key structural components preferably includes treatment to enhance resistance to moisture and humidity that the display will naturally encounter in the retail environment, therefore extending the useful life of the display. A material suitably treated is Clima-Guard® containerboard by International Paper Company. 
         [0012]    The display rack is packaged in lightweight, easy to transport compact kit form for distribution and set-up by the vendor&#39;s Direct Store Delivery (DSD) supply chain. Assembly of the components at the point of sale is intuitive, does not require any tools, and set-up can be accomplished in a few minutes. 
         [0013]    The display rack possesses the structural strength to support up to 400 pounds of products, can last in the retail environment under a full load of product, and can sustain the rigors of “shopping/store” activity for up to 6 months. This ability provides Consumer Packaged Goods (CPG) companies/retailers with a viable option when faced with having to display heavy products for long periods of time at retail. 
         [0014]    The recyclability of the display racks of the invention is a positive development in meeting market demand for more environmentally responsible display solutions, especially considering that they are a replacement for displays constructed primarily from permanent materials. 
         [0015]    The structural engineering of the laminated corrugated components provides superior strength performance across the span of the shelves and the support of the body components (sides and back). 
         [0016]    The display racks of the invention have the ability to serve as a replacement for existing display vehicles that are constructed from permanent materials such as wood, metal, and plastics. This will lower the cost of the display and dramatically improve the chances that the display will be recycled at the end of its useful life. 
         [0017]    Construction of the display rack from 100% recyclable fiber-based materials helps satisfy the market needs for more environmentally responsible solutions in the display industry. 
         [0018]    Because of these features of the display rack of the invention, it can be advantageously applied across all channels of retail trade, including mass, grocery, drug, club, and specialty stores. 
         [0019]    Accordingly, one aspect of the present invention is directed to a freestanding display rack used for supporting and displaying product at a point of sale. The display rack comprises a pair of spaced apart side panels made of multi-ply sheets of recyclable fiber-based material laminated together. A plurality of shelves extends between and supported at their opposite ends on the side panels by mechanical interlocking means engaged between the shelves and the side panels. The shelves are made of multi-ply sheets of recyclable fiber-based material laminated together. A graphics header extends above the shelves and side panels and graphics on the side panels and the header. The mechanical interlocking means comprises slots in the side panels and tabs integral with the shelves on opposite ends thereof extended through the slots. An opening is formed in an end of each of the tabs projecting through the slots in the respective side panel and a locking pin is inserted in each opening to prevent withdrawal of the tabs from the slots. Center shelf supports extend between adjacent shelves substantially along a longitudinal centerline thereof, the shelf supports having tabs on opposite ends thereof engaged in the openings in the side panels and tabs on top and bottom edges thereof engaged in openings in adjacent the shelves. 
         [0020]    The shelves and the side panels define substantially identical spaces open at both a front and a back of the display rack for display of and access to product at both the front and back of the display rack. The graphics on the side panels comprise separate side graphics panels attached to an outer surface of the side panels and the side graphics panels being made of laminated sheets of fiber-based material. The side graphics panels are attached to the side panels by tongues on a rear surface of the side graphics panels inserted through the openings in the ends of the tabs projecting through the slots. The graphics header comprises a separate header panel supported on upper ends of the side graphics panels by interfitting notches on a bottom edge of the header panel and on the upper ends of the side graphics panels. 
         [0021]    The shelves comprise a core piece and an outer wrap. The core piece comprises multi-ply sheets of fiber-based material laminated together and the outer wrap comprises a single sheet of fiber-based material laminated to the core piece, and the sheets forming the core piece each comprising a center panel and first and second half panels are foldably joined to respective opposite side edges of the center piece and folded inwardly over the center piece wherein confronting edges of the half panels are non-linear and are in abutting relationship with one another along offset lines for improved strength. 
         [0022]    Another aspect of the present invention is directed to a freestanding display rack used for supporting and displaying product at a point of sale. The display rack is made entirely of materials that can be recycled efficiently by utilizing existing fiber recycling chains and can be shipped to the point of sale in a knocked-down flattened condition in a compact package and quickly and easily assembled at the point of sale without using tools. The display rack comprises a pair of spaced apart side panels and a plurality of shelves extend between and supported at their opposite ends on the side panels by a plurality of mechanical interlocking engaged between the shelves and the side panels. The plurality of mechanical interlocking comprise slots in the side panels and tabs integral with the shelves on opposite ends thereof extended through the slots. An opening is formed in an end of each of the tabs projecting through the slots in the respective side panel. A locking pin inserted in each the opening to prevent withdrawal of the tabs from the slots. A graphics header extends above the shelves and side panels. 
         [0023]    A further aspect of the invention is directed to a disassembled kit having components of a display rack for supporting and displaying product at a point of sale. The disassembled kit comprises a pair of side panels and a plurality of shelves of extend between and supported at their opposite ends on the side panels by a plurality of mechanical interlocking engaged between the shelves and the side panels. The plurality of mechanical interlocking comprises slots in the side panels and tabs integral with the shelves on opposite ends thereof extended through the slots. A graphics header extends above the shelves and side panels wherein the pair of side panels, the plurality of shelves, and the graphics header are attached to one another to form the display rack. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0024]    The foregoing, as well as other objects and advantages of the invention, will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, wherein like reference characters designate like parts throughout the several views, and wherein: 
           [0025]      FIG. 1  is a front perspective view of a first preferred form of display rack according to the invention. 
           [0026]      FIG. 2  is a rear perspective view of the display rack of  FIG. 1 . 
           [0027]      FIG. 3  is an exploded plan view of the major components of the display rack of  FIG. 1 . 
           [0028]      FIG. 4  is a plan view of a first side panel blank that is laminated with two additional identical blanks to form a portion of one of the side panels of the display rack of  FIG. 1 . 
           [0029]      FIG. 5  is a plan view of a second side panel blank that is laminated with three of the blanks of  FIG. 4  to form one of the side panels of the display rack of  FIG. 1 . 
           [0030]      FIG. 6  is a slightly exaggerated perspective view of a completed side panel used in the display rack of  FIG. 1 , looking toward the inner surface of the side panel and showing how the flange at the bottom edge of the second blank wraps around the bottom edges of the laminated first blanks. 
           [0031]      FIG. 7  is a plan view of a blank used in making an inner portion or core of a shelf as used in the display rack of  FIG. 1 . 
           [0032]      FIG. 8  is a plan view of a blank used in making an outer wrap for the shelf used in the rack of  FIG. 1 . 
           [0033]      FIG. 9  is a perspective view of two of the blanks of  FIG. 7  folded into operative position and laminated together to form a shelf core. 
           [0034]      FIG. 10  is a perspective view of a completed shelf, wherein the wrap of  FIG. 8  is applied to the core of  FIG. 9 . 
           [0035]      FIG. 11  is a plan view of a blank used in making a center brace for the shelves in the rack of  FIG. 1 . 
           [0036]      FIG. 12  is a perspective view of a completed center brace, shown slightly exaggerated, wherein four of the blanks of  FIG. 11  are laminated together. 
           [0037]      FIG. 13  is a plan view of a blank used in making a center brace for the bottom shelf in the display rack of  FIG. 1 . 
           [0038]      FIG. 14  is a perspective view of a completed bottom center brace, shown slightly exaggerated, wherein four of the blanks of  FIG. 13  are laminated together. 
           [0039]      FIG. 15  is an enlarged plan view of a blank used to make one of the locking pins for securing the tabs on the shelves in place in the slots in the side panels. 
           [0040]      FIG. 16  is a plan view of a graphic for application to the header of  FIG. 17 . 
           [0041]      FIG. 17  is a plan view of a header panel for application to the display rack of  FIG. 1 . 
           [0042]      FIG. 18  is a plan view of a first component of a graphics panel for application to the side panels of the rack of  FIG. 1 . 
           [0043]      FIG. 19  is a plan view of a second component of the graphics panel for application to the side panels of the rack of  FIG. 1 . 
           [0044]      FIG. 20  is an exploded perspective view, on a reduced scale, showing how two of the graphics panel components of  FIG. 18  are laminated with the graphics panel component of  FIG. 19  to form a completed side graphics panel as used in the rack of  FIG. 1 . 
           [0045]      FIG. 21  is a plan view of a blank for making either the top or the bottom of a container for use in shipping the components of the rack of the invention. 
           [0046]      FIG. 22  is a perspective view of a completed package for shipping the disassembled rack of the invention. 
           [0047]      FIG. 23  is a fragmentary perspective view showing one of the shelves of  FIG. 10  in position as the top shelf on a first side panel of  FIG. 6 , with a center brace of  FIG. 12  being moved into operative position. 
           [0048]      FIG. 24  is a fragmentary perspective view showing two additional shelves in position on the first side panel and a subsequent center brace being positioned. 
           [0049]      FIG. 25  is a fragmentary perspective view showing a bottom shelf in position and the bottom center brace being positioned. 
           [0050]      FIG. 26  is a fragmentary perspective view showing the second side panel being positioned on the shelves and center braces previously applied to the first side panel. 
           [0051]      FIGS. 27-29  are fragmentary perspective views depicting the side panels being fully engaged on the tabs projecting from the ends of the shelves. 
           [0052]      FIG. 30  is a fragmentary perspective view showing the locking pins being inserted into the openings in the ends of the tabs projecting through the slots in the side panels. 
           [0053]      FIG. 31  is a perspective view of the rack of  FIG. 1  with all the structural components fully assembled but prior to application of the graphics panels of  FIG. 20 . 
           [0054]      FIG. 32  is an enlarged fragmentary perspective view depicting the locking tongue at the bottom end of one of the graphics panels being inserted into the opening in the projecting tab of the bottom shelf. 
           [0055]      FIG. 33  is an enlarged fragmentary perspective view depicting the locking tongue at the top end of the graphics panel being inserted into the opening in the projecting tab of the top shelf. 
           [0056]      FIG. 34  is an enlarged fragmentary perspective view depicting a locking pin being inserted into the tab opening behind the previously inserted tongue at the bottom end of the graphics panel. 
           [0057]      FIG. 35  is an enlarged fragmentary perspective view depicting a locking pin being inserted into the tab opening behind the previously inserted tongue at the top end of the graphics panel. 
           [0058]      FIG. 36  is a fragmentary perspective view depicting the header being applied to the upper ends of the side graphics panels, thus completing the assembly of the display rack of  FIG. 1 . 
           [0059]      FIG. 37  is a front perspective view of a second preferred form of display rack according to the invention, wherein the rack includes a back panel and opposite side panels, with the shelves supported on the back panel and side panels. 
           [0060]      FIGS. 38 ,  39  and  40  are perspective views of the structural components of the rack of  FIG. 37 , wherein  FIG. 38  shows the back panel and opposite side panels,  FIG. 39  is a top perspective view of one of the shelves, and  FIG. 40  is a bottom perspective view of one of the shelves. 
           [0061]      FIG. 41  is a plan view of a first blank for use in making the back panel of the rack of  FIG. 37 . 
           [0062]      FIG. 42  is a plan view of a second blank for use in making the back panel of the rack of  FIG. 37 . 
           [0063]      FIG. 43  is a perspective view, shown somewhat exaggerated, of three of the blanks of  FIG. 41  laminated with one of the blanks of  FIG. 42  to form a back panel. 
           [0064]      FIG. 44  is a plan view of a first blank for use in making a side panel of the rack of  FIG. 37 . 
           [0065]      FIG. 45  is a plan view of a second blank for use in making a side panel of the rack of  FIG. 37 . 
           [0066]      FIG. 46  is a plan view of a third blank for use in making a side panel of the rack of  FIG. 37 . 
           [0067]      FIG. 47  is an exploded perspective view showing how the blanks of  FIGS. 44-46  are laminated together to make a side panel. 
           [0068]      FIG. 48  is a plan view of a graphic for application to the side panels of the rack of  FIG. 37 . 
           [0069]      FIG. 49  is a perspective view of a side panel with the graphic of  FIG. 48  applied to it. 
           [0070]      FIG. 50  is a plan view of a blank for making an inner component or core of one of the shelves used in the rack of  FIG. 37 . 
           [0071]      FIG. 51  is a perspective view of an inner shelf component folded from the blank of  FIG. 50 . 
           [0072]      FIG. 52  is a plan view of a blank for making an outer wrap component for a shelf used in the rack of  FIG. 37 . 
           [0073]      FIG. 53  is an exploded perspective view depicting how the outer wrap of  FIG. 52  is applied to the inner component of  FIG. 51 . 
           [0074]      FIG. 54  is a plan view of a blank for making a graphic panel for application to the top of the rack of  FIG. 37 . 
           [0075]      FIG. 55  is a plan view of a blank for making a shelf center brace for use in the rack of  FIG. 37 . 
           [0076]      FIG. 56  is a fragmentary perspective view showing how the side panels are attached to the back panel by engaging the notches and tabs along adjacent side edges. 
           [0077]      FIG. 57  is a perspective view of the assembled back panel and side panels, with the partially assembled rack lying on its back. 
           [0078]      FIG. 58  is a greatly enlarged fragmentary view looking toward the front edge of the bottom end of one of the side panels, showing the front-to-back channel formed by the laminated blanks of  FIGS. 44-46 . 
           [0079]      FIG. 59  is a fragmentary bottom perspective view showing how the flange depending from one side edge of a shelf is inserted into a channel in a side panel. 
           [0080]      FIGS. 60 and 61  are fragmentary perspective views depicting a shelf being slid into position between the side panels. 
           [0081]      FIG. 62  is a fragmentary perspective view looking toward the rear of the rack of  FIG. 37 , depicting the back being firmly pressed into place to ensure firm engagement of the tabs and notches along the side edges and full insertion of the tabs into the slots. 
           [0082]      FIG. 63  is a fragmentary rear perspective view showing one of the locking pins being inserted into the opening in one of the shelf tabs. 
           [0083]      FIG. 64  is a fragmentary perspective view showing one of the center braces being placed in operative position. 
           [0084]      FIG. 65  is a front perspective view of the rack of  FIG. 37  prior to the graphics header being applied. 
           [0085]      FIG. 66  is a fragmentary perspective view showing the header graphics panel being readied for installation on top of the rack. 
           [0086]      FIG. 67  is a fragmentary perspective view showing the header graphics being applied to the rack. 
           [0087]      FIG. 68  is a front perspective view of a variation of the rack in  FIG. 37 , wherein the front edges of the side panels are convexly shaped rather than concave as in  FIG. 37 . In all other respects this form of the invention is the same as the  FIG. 37  embodiment. 
           [0088]      FIG. 69  is an exploded perspective view of the components of the  FIG. 68  embodiment. 
           [0089]      FIG. 70  is a front perspective view of alternative variation of the rack in  FIGS. 37 and 38 , wherein the top shelf comprises a tray so that fruits and/or vegetables or in combination with liquid bottle being disposed therein and a base is adhered to underside of the bottom shelf. 
           [0090]      FIG. 71  is an exploded perspective view of the components of the  FIG. 68  embodiment. 
           [0091]      FIG. 72  is a front perspective view of a third preferred form of the invention, wherein the shelves are supported on back and side panels, and support posts extend between adjacent shelves adjacent the outer front corners thereof. 
           [0092]      FIG. 73  is a top perspective view of the components used in the  FIG. 70  embodiment. 
           [0093]      FIG. 74  is a plan view of a first blank used in the manufacture of the back panel of the  FIG. 72  embodiment. 
           [0094]      FIG. 75  is a plan view of a second blank used in the manufacture of the back panel of the  FIG. 72  embodiment. 
           [0095]      FIG. 76  is a plan view of a cover panel for placement on the front of the back panel between the top and bottom shelves. 
           [0096]      FIG. 77  is an exploded perspective view showing how the blanks of  FIGS. 74-76  are laminated together. 
           [0097]      FIG. 78  is a plan view of a first blank used in the manufacture of a side panel of the  FIG. 72  embodiment. 
           [0098]      FIG. 79  is a plan view of a second blank used in the manufacture of a side panel of the  FIG. 72  embodiment. 
           [0099]      FIG. 80  is a perspective view of a side panel, shown slightly exaggerated, made up of the blanks of  FIGS. 78 and 79  laminated together. 
           [0100]      FIG. 81  is a top plan view of a blank used in the manufacture of a shelf as used in the  FIG. 72  embodiment. 
           [0101]      FIG. 82  is a perspective view showing the blank of  FIG. 81  being folded into operative relationship to form an inner shelf component. 
           [0102]      FIG. 83  is a top plan view of a blank for making an outer shelf wrap used in the manufacture of a shelf as used in the  FIG. 72  embodiment. 
           [0103]      FIG. 84  is a perspective view showing the wrap of  FIG. 81  being applied to the inner shelf component of  FIG. 82 . 
           [0104]      FIG. 85  is a top plan view of a stop that is placed between the laminations of the shelf in positions to block movement of the support rods completely through the shelf. 
           [0105]      FIG. 86  is a top plan view of a blank used to make the lock pin. 
           [0106]      FIG. 87  is a perspective view of a first support rod that is placed below the bottom shelf in the rack of  FIG. 72 . 
           [0107]      FIG. 88  is a perspective view of a second support rod that is placed between adjacent shelves. 
           [0108]      FIG. 89  is a plan view of a header graphics panel that is placed on the header. 
           [0109]      FIG. 90  is a plan view of a blank used to make a skirt that is positioned beneath the bottom shelf in the rack of  FIG. 72 . 
           [0110]      FIG. 91  is a plan view of a graphics wrap that is positioned on the outside of the back and side panels. 
           [0111]      FIG. 92  is a perspective view of the graphics wrap of  FIG. 91  in partially folded orientation. 
           [0112]      FIG. 93  is a fragmentary perspective view showing a shelf being attached to the back panel of the rack of  FIG. 72 . 
           [0113]      FIG. 94  is a perspective view showing attachment of a final shelf in a series of four. 
           [0114]      FIGS. 95-98  depict one of the side panels being attached to one end of the shelves and corresponding side edge of the back panel. 
           [0115]      FIGS. 99 and 100  show the support rods being positioned in the openings provided in the shelves for that purpose. 
           [0116]      FIG. 101  shows the rods fully assembled to the shelves, and the locking tongues on the ends of the shelves extended through slots in the side panels and ready to be folded into locked position. 
           [0117]      FIGS. 102-104  show the locking tongues being moved into locked position. 
           [0118]      FIG. 105  shows the rack with all the tongues in folded locked position to secure the side panels to the ends of the shelves and all the rods in operative assembled position. 
           [0119]      FIG. 106  shows the rack flipped over onto its front, and the back panel being pressed into operative position to fully engage the tabs and notches at the adjacent side edges of the side and back panels and to fully extend the tabs on the back edges of the shelves through the slots in the back panel. 
           [0120]      FIG. 107  shows a locking pin being inserted into the opening provided for that purpose in the end of the locking pin that projects through the tab on the shelf. 
           [0121]      FIG. 108  is a fragmentary rear perspective view of the rack of  FIG. 70 , showing the locking pins and locking tongues in operative position to secure the rack components together. 
           [0122]      FIG. 109  is a front perspective view of the rack of  FIG. 70  prior to application of the graphics wrap. 
           [0123]      FIG. 110  is a fragmentary front perspective view showing the graphics wrap being applied to the rack. 
           [0124]      FIG. 111  is a front perspective view of a variation of the rack shown in  FIG. 70 , wherein the graphics wrap extends over only a portion of the back but extends completely over one side of the rack and partially over the front. 
           [0125]      FIG. 112  is a perspective view of the graphics wrap used in the  FIG. 109  embodiment, shown slightly folded. 
           [0126]      FIG. 113  is a fragmentary rear perspective view showing the rear portion of the graphics wrap being applied to the back of the rack, and depicting how the locking pins that hold the shelves to the back panel also serve to hold the back panel of the graphics wrap attached to the back panel of the rack. 
           [0127]      FIG. 114  is a fragmentary perspective view showing the front panel of the graphics wraps being positioned for attachment to the front of the rack. 
           [0128]      FIG. 115  shows the front panel of the graphics wrap being pressed into place. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0129]    A first preferred form of display rack according to the invention is indicated generally at  10  in  FIGS. 1 and 2 . In this form of the invention a plurality of shelves  11  are supported on opposed side panels  12  and  13  so that product P supported on the shelves is displayed and is accessible at both the front and the back of the rack. In the particular embodiment shown, the rack is designed for two-liter bottles but it should be understood that other products could be supported and displayed on the rack. Tabs  14  and  15  on opposite ends of the shelves are received through slots  16  in the side panels, and locking pins  17  are inserted through openings  18  in the projecting end portions of the tabs to secure them in the slots. See  FIG. 30 . 
         [0130]    As seen best in  FIGS. 23-25  and  31 , center shelf supports  19  extend from one side panel to the other and are engaged between the shelves along their longitudinal centerline. A bottom shelf support  19 ′ of reduced height relative to the center supports  19  extends beneath the bottom shelf. First tabs  20  on the ends of the shelf supports engage in slots  21  in the side panels, and second tabs  22  and  23  on the top and bottom edges of the center supports engage in slots  24  in the shelves. The bottom shelf support  19 ′ has tabs  22  only on its top edge. 
         [0131]    Graphics panels  25  and  26  having tongues  27  and  28  on the inner surface thereof adjacent the top and bottom ends are attached to the outside faces of each side panel by engagement of the tongues in the openings  18  in the projecting end portions of the tabs  14  and  15  on the ends of the top and bottom shelves. See  FIGS. 18-20  and  32 - 35 . 
         [0132]    A header  30  with graphics  30 ′ is supported on the top ends of the graphics panels  25  and  26  by engagement of notches  31  in the bottom edge of the header adjacent its opposite ends with notches  32  in the top ends of the graphics panels  25  and  26 . 
         [0133]    As seen best in  FIGS. 4-6 , in the particular construction illustrated and described herein, each side panel  12  and  13  is comprised of three blanks or sheets  12   a ,  12   b  and  12   c  of 51-C-KRAFT/33 laminated together, and a single blank or sheet  12   d  of 51-C-KRAFT/33 laminated to the sheets  12   a - 12   c . In the present invention, 51 C Kraft is the type of paper used to make the combined corrugated board which is a Kraft back liner, 51 refers to the Edge Crush Test (ECT) value, and 33 is the lbs of the paper used in the medium or middle liner to make the combine corrugated board. The sheet  12   d  forms the outer surface of the side panel in an assembled rack and has a flange  35  on its bottom end that is wrapped around the bottom ends of the laminated sheets  12   a - 12   c.    
         [0134]    As seen best in  FIGS. 7-10 , the shelves  11  each comprise an inner piece or shelf core  11   a  made up of two blanks or sheets  11   b  and  11   c  laminated together, and an outer wrap  11   d  formed from a single blank or sheet  11   e  folded around and laminated to the inner piece. 
         [0135]    The sheets  11   b ,  11   c  that are laminated together to form the shelf core each comprise a center panel  40  having length and width dimensions corresponding to the length and width dimensions of a finished shelf, and half panels  41  and  42  foldably joined to the front and back edges thereof, respectively. The outer edges of the half panels have offset cutouts  43  therein so that when the half panels are folded inwardly over the center panel they fit together along a generally zigzag line. This arrangement improves the bending strength of the core  11   a  when the two folded sheets  11   b ,  11   c  are laminated together to form the core as shown in  FIG. 9 . In the particular construction shown and described herein, the sheets  11   b ,  11   c  are formed of 51-BC-KRAFT/33 where BC is defined as flute B and flute C as is known in the packaging industry. 
         [0136]    The sheet  11   e  that forms the wrap  11   d  comprises a center panel  45  having length and width dimensions corresponding to the length and width dimensions of the panel  40  of the core piece, and half panels  46  and  47  foldably joined to the front and back edges of the center panel. The center panel  45  of the wrap is overlaid with the center panel  40  of the core, and the half panels  46  and  47  folded inwardly and laminated to the core to form a finished shelf  11  as seen in  FIG. 10 . In the particular construction shown and described herein, the sheet  11   e  that forms the wrap is formed of 40-C-KRAFT. 
         [0137]    The center shelf supports  19  are each formed of four blanks or sheets  19   a - 19   d  of 51-BC-KRAFT laminated together as shown in  FIG. 12 , and the bottom shelf support  19 ′ is formed of four blanks or sheets  19   a ′- 19   d ′ of 51-BC-KRAFT laminated together as shown in  FIG. 14 . 
         [0138]    The locking pins  17  are each formed of a single sheet  17 A of 40-C-KRAFT, shown in  FIG. 15 , which is folded onto itself to form the generally T-shaped locking pin for insertion into the openings  18  in the tabs  14  and  15  as depicted in  FIG. 30 . 
         [0139]    The header  30  is formed of two sheets of 51-BC-KRAFT laminated together, as depicted in  FIG. 17 . Graphics panels  30 ′, shown in  FIG. 16 , are glued to the front and back surfaces of the header by the manufacturer prior to shipment of the rack to a point of use. In the particular construction described and illustrated herein, the graphics panels  30 ′ are made of 51-BC-MWOS (i.e., Model White Out Side). 
         [0140]    The graphics panels  25  and  26  are identically constructed and only panel  25  will be described in detail. Panel  25  comprises three sheets  25   a ,  25   b  and  25   c  laminated together. Sheet  25   a , which forms an unbroken outer surface of the panel when it is installed, is made of 51-BC-MWOS, and sheets  25   b  and  25   c  are made of 51-BC-KRAFT. Each of sheets  25   b  and  25   c  is formed with the tongues  27  and  28  adjacent its top and bottom ends, but when the graphics panel is installed on the rack only the tongues on the innermost sheet  25   c  are folded into operative position and inserted into the openings  18  in the projecting end portions of the tabs  14  and  15  on the ends of the top and bottom shelves as depicted in  FIGS. 32-35 . It will be noted that the tongues have a first portion  50  foldably connected to the respective panel, and a second portion  51  foldably connected to the first portion. The first portion has a width the same as the width of the tab  14  or  15  between the opening  18  and the outer edge of the tab, thereby permitting the tongue to be folded inwardly and downwardly against the tab with the second portion extended through the opening  18 . After the tongues have been inserted into the openings  18 , locking pins  17  are then inserted through the openings  18  behind the portions  51  of the tongues. 
         [0141]    The display rack  10  is shipped to a point of sale in disassembled kit form in a compact package comprising the components of the rack in a shipping container C as illustrated in  FIG. 22 . The container C comprises a top tray adapted to fit over a bottom tray, both of rectangular construction and in the particular example described herein made of 40-C-KRAFT. A blank for making one of the trays is shown in  FIG. 21 , it being understood that the blank for making the other tray is identical except for having a slightly different size so that one of the trays will fit within the other to form the container shown in  FIG. 22 . 
         [0142]    The steps of assembling the rack  10  are illustrated in sequence in  FIGS. 23-36 , and when considered in conjunction with the remaining disclosures herein are believed to be self-explanatory. Briefly,  FIGS. 23-25  show the steps of assembling the shelves  11  and shelf supports  19  and  19 ′ to each other and to one of the side panels  12 .  FIGS. 26-29  show the steps of assembling the second side panel  13  to the previously assembled shelves and shelf supports.  FIG. 30  shows one of the locking pins  17  being inserted into the opening  18  of the projecting end of a tab  14  or  15 .  FIG. 31  shows an assembled rack ready for attachment of the side and header graphics panels.  FIGS. 32-35  show the steps of attaching a side graphics panel  25  or  26 , and  FIG. 36  shows the step of attaching the graphics header  30  to the previously attached side graphics. 
         [0143]    A second preferred form of display rack according to the invention is indicated generally at  60  in  FIG. 37 . The rack  60  has a back panel  61  mechanically interlocked with side panels  62  and  63 , and shelves  64  are supported by the side panels and the back panel. Generally triangularly shaped shelf supports  65  are engaged between the shelves, and a graphics header  66  is attached to upper ends of the side panels. The side panels also contain graphics. 
         [0144]    The mechanical interlock between the back panel  61  and the side panels  62  and  63  comprises a plurality of generally equally spaced tabs  67  and  68  projecting from opposite side edges of the back panel and engaged in notches  70  along the back edge of the respective side panels. 
         [0145]    Each side panel has a plurality of spaced parallel channels  72  formed on its inner surface, extending at one end through the front edge of the panel but terminating at its opposite end spaced from the back edge of the panel. Depending flanges  73 ,  74  on the opposite side edges of the shelves are received in the channels to support the shelves on the side panels. 
         [0146]    A plurality of spaced parallel slots  75  are formed through the back panel, spaced closer to the bottom end of the panel than to its top end, and a tab  76  projecting from the rearward edge of each shelf  64  is received through a respective slot. The ends of the tabs projecting through the slots each has an opening  18  therethrough, and a locking pin  17  is inserted into the opening  18  to pin the shelves to the back panel in the same manner that the shelves in the first embodiment are pinned to the side panels. 
         [0147]    The back panel  61  is comprised of four blanks or sheets  61   a - 61   d  of 51-BC-KRAFT laminated together, with one of the sheets  61   a  forming an outer surface of the back panel in an assembled rack. The sheet  61   a  has a flange  77  on its bottom end that is folded around the bottom ends of the other three sheets, as shown in  FIG. 63 . 
         [0148]    The side panels  62  and  63  are identically constructed and only one panel  62  will be described in detail. The panel  62  is comprised of four blanks or sheets  62   a - 62   d  of 51-BC-KRAFT laminated together. Sheet  62   a  has a convexly curved forward edge portion and a flange  65  on its bottom end that is folded around the bottom ends of sheets  62   b - 62   d . Sheet  62   a  forms an outer surface of the side panel when it is installed in a rack. Parallel spaced slots  80  extend into sheet  62   b  through the forward edge thereof, terminating short of the rearward edge of the sheet, and parallel spaced slots  81  extend into sheets  62   c  and  62   d  through the forward edges thereof. The slots  80  and  81  are in registry with one another, but slots  81  are narrower than slots  80 , whereby the slots form the channels  72 . See  FIGS. 58 and 59 . The sheets  62   b - 62   d  have concavely curved forward edges. Small tabs  82  extend upwardly from the front corners of each of the sheets. 
         [0149]    A side graphics panel  85  made of 51-BC-MWOS is applied to the outer surface of each of the side panels  62  and  63 . See  FIGS. 37 ,  48  and  49 . 
         [0150]    The shelves  64  comprise an inner piece or core  85  and an outer wrap  86 . As seen in  FIGS. 50 and 51 , the core  85  is formed from a blank or sheet  85   a  having a center panel  90  of substantially the same length and width as a finished shelf, with a first half panel  91  folded to an edge of the center panel that corresponds to the forward edge of the shelf, a second half panel  92  folded to the first half panel, a third half panel  93  folded to the edge of the center panel opposite the first half panel and which forms the rearward edge of the shelf, and a fourth half panel  94  folded to the third half panel. A cut  95  is made in the edge of the center panel adjacent the third half panel and when the panels are folded into the configuration shown in  FIG. 51 , the material separated from the center panel by the cut forms a part of the tab  76  projecting from the rear of the shelf when the sheet is folded to form the shelf. In the particular example disclosed herein, the sheet  85   a  comprises 51-BC-KRAFT. 
         [0151]    As seen in  FIG. 52 , the wrap  86  is formed from a sheet  86   a  having first and second panels  100 ,  101 , which form the top and bottom surfaces, respectively, in a completed shelf. The panels  100  and  101  are foldably joined along adjacent edges and each has substantially the same outline as a shelf  64 . Cutouts  102  in the sides of the sheet at the folded connection between the panels form extensions  76   a ,  76   b  that comprise part of a tab  76  in the completed shelf. First flaps  103  are foldably connected to opposite side edges of panel  100 , and second flaps  104  are foldably connected to the outer edges of the first flaps. A shaped cut  105  extends along most of the length of the fold between the first and second flaps. When the wrap  86  is folded around the core  85  and the flaps  103  and  104  are folded downwardly as depicted in  FIG. 53 , the flaps  103  extend downwardly from opposite side edges of the shelf to form the flanges  73 ,  74 . The second flaps  104  are glued to the bottom of the panel  101 . The outer end edges of the panels  100 ,  101  are outwardly curved, and the curved edge  106  on panel  101  is joined to the panel along a narrow panel  107 , whereby when the wrap is in operatively folded relationship around the core  85 , the panel  107  extends upwardly at an angle and the curved edge  106  is glued to the underside of the curved edge on panel  100  to form an outwardly curved lip on the shelf. See  FIG. 40 . A pair of small slots  108  and  109  is formed in the panel  101  near its rearward and forward edges, and a small slot  110  is formed in panel  100  near its rearward edge, for a purpose described hereinafter. In the particular example disclosed herein, the sheet  86   a  comprises 55-C-KRAFT. 
         [0152]      FIG. 54  shows a blank or sheet  66   a  that is folded to make the header  66 . Adhesive is applied in the shaded areas  111 ,  112  at opposite ends of the sheet, and these areas are adhered together when the sheet is folded to form the generally tubular shape shown in  FIG. 54A . In the particular example disclosed herein, the header  66  is made of 32-E-KRAFT. 
         [0153]    As shown in  FIGS. 55 and 55A , the triangularly shaped shelf supports  65  are made from a blank or sheet  65   a  that is folded on itself along a fold  115  to form a double thickness. A narrow slot  116  is cut out along the fold  115  so that when the sheet is folded in half two small tabs  117  and  118  are formed along the edge. A small tab  119  also is on the narrow edge of the support. When the shelf support is installed, as shown in  FIG. 64 , the tab  119  on the bottom edge of the support is engaged in slot  110  in the top of the subjacent shelf, and the tabs  117 ,  118  are engaged in the slots  108 ,  109 , respectively, in the bottom of the superjacent shelf. In the particular example disclosed herein, the shelf supports are made of 51-BC-KRAFT. 
         [0154]    The steps for assembling the rack  60  are illustrated in  FIGS. 56-67  and are believed to be self-explanatory. Briefly,  FIG. 56  shows the side panels  62  and  63  being assembled to the back panel  61 , and  FIG. 57  shows the side panels installed.  FIG. 58  shows the channel  72  just above the bottom of the rack, and  FIG. 59  is a view looking up under a shelf and showing how a flange  73  or  74  on the edge of the shelf is positioned to be slid into the channel.  FIG. 60  illustrates a shelf in position attached to the side and back panels, and shows the slot  75  in the back panel for receiving the tab  76  on the back of a shelf to be installed.  FIG. 61  shows the subsequent shelf installed.  FIG. 62  shows the back panel being tapped to fully seat the tab  76  in the slot  75 , and  FIG. 63  shows a locking pin  17  being inserted into the opening  18  in the tab end portion that projects through the back panel.  FIG. 64  shows one of the shelf supports  65  being installed with the narrow edge down, and  FIG. 65  shows the assembled rack before the header is installed.  FIG. 66  shows the header  66  being opened up into a generally tubular configuration and  FIG. 67  shows the header being installed on the tabs  82  projecting upwardly from the front corners of the side panels. 
         [0155]    A variation of the rack  60  is shown at  120  in  FIG. 68 . This rack differs from rack  60  in that the front edge of the side panels  62 ′,  63 ′ is convexly curved over its length rather than being convexly curved over its bottom portion as in the rack  60 . In all other respects the rack  120  is constructed identically to rack  60 . Components for constructing the rack  120  are shown in  FIG. 69 , wherein parts corresponding to the parts in rack  60  are given the same reference numbers. 
         [0156]      FIG. 70  is a front perspective view of alternative variation of the rack in  FIGS. 37 and 38 , wherein the top shelf  64  comprises a tray  64 A so that fruits and/or vegetables or in combination with liquid bottle being disposed therein and a base B is adhered to underside of the bottom shelf. The tray  64 A has an interior space  64 B that contains fruits such as, for example, banana or other vegetables therein. A header  66 ′ is installed on the rack as well. It is within the scope of the present invention that a divider may be placed within the tray or the shelf so that varieties of items such as fruits, bottle of water and the likes disposed therein. The rack in  FIG. 70  is assembled from components depicted in  FIG. 71 . 
         [0157]    A third preferred form of display rack according to the invention is shown at  150  in  FIG. 72 . This rack is similar to the rack  60  in that it has opposite side panels  151 ,  152  mechanically locked to a back panel  153  by interengaged tabs  67 ,  68  and slots  70  along the adjacent side edges of the back and side panels, with shelves  154  supported on the back and side panels, but the construction of the side and back panels, the shelves, the shelf supports, and the graphics wrap applied to the side and back panels is different than in the previous embodiments. 
         [0158]    Instead of a single row of slots  75  in the back panel as in the  FIG. 37  embodiment, the back panel  153  in the rack  150  of the  FIG. 72  embodiment has a double row of slots  75 A and  75 B, and the shelves  154  each has two tabs  76 A and  76 B that are engaged in the respective slots when the shelves are in operative assembled position. The tabs each have an opening  18  in the end portion projecting through the back panel, and a locking pin  17  is engaged in the openings to secure the tabs in position, as in the previous embodiments. Further, the upper end of the back panel is extended to form a graphics header  155 . 
         [0159]    Tongues  156 ,  157  project outwardly from opposite side edges of the shelves, and small circular holes  158 ,  159  are formed in the top and bottom surfaces, respectively, spaced inwardly slightly from the front edge of the shelf and closely adjacent the opposite side edges. 
         [0160]    The side panels  151  and  152  are narrower than the side panels in the previous embodiments and are rectangularly shaped. Each side panel has a row of slots  160  arranged along its length and a narrow slit  161  spaced a short distance from each slot  160 . When the shelves and side panels are in operative position, the tongues  156 ,  157  are extended outwardly through the slots  160  and a forward end thereof is folded rearwardly and inserted into a respective slit  161  as seen best in  FIGS. 96-98  and  102 ,  103 . The shelves are thus supported on the back panel by the tabs  76 A,  76 B engaged in slots  75 A,  75 B, and on the side panels by engagement of the tongues  156 ,  157  in the slots  160  and slits  161 . 
         [0161]    The shelf supports in this form of the invention comprise a plurality of rods or poles  165  extended between adjacent shelves and engaged at their opposite ends in the holes  158 ,  159 , respectively. 
         [0162]    A skirt assembly  170  is positioned beneath the bottom shelf and includes a pair of short poles  165 ′ engaged at their upper ends in holes  159 ′ in the underside of the upper panel  171  of the skirt assembly and extending at their lower ends to contact a support surface on which the display rack is resting. The poles  165 ′ are in alignment with the poles  165  extending between the shelves  154 , whereby the front portions of all the shelves are effectively supported from the supporting surface. Depending flanges  172  and  173  extend across the front and sides, respectively, of the skirt assembly to hide the space beneath the bottom shelf. 
         [0163]    A graphics wrap  180  in this form of the invention includes a back panel  181  that extends completely across the back of the display rack, side panels  182  and  183  that extend across the side panels of the rack, and flanges  184  that fold around and cover the front edges of the side panels  151 ,  152  of the rack and are frictionally engaged between adjacent shelves to hold the graphics wrap in place. 
         [0164]    As shown in  FIGS. 74-76 , the back panel  153  is composed of three blanks or sheets  153 A laminated with a sheet  153 B, and a graphics panel  190  applied to the front of the back panel and that spans the distance between the top and bottom shelves. The sheet  153 B forms the outer surface of the back panel in an assembled rack and has a flange  191  on its bottom end that is wrapped around the bottom ends of the laminated sheets  153 A. Shallow recesses  192  are formed in the top and bottom edges of the graphics panel, providing clearance for the tabs  76 A,  76 B on the backs of the shelves, and similar shallow recesses  193  are formed in the side edges to provide clearance for the tabs  67 ,  68  on the side edges of the side panels. In a particular example of the display rack described herein, the sheets  153 A and  153 B are made of 61-BC-KRAFT/40, and the graphics panel is made of 32-B-MWOS. 
         [0165]      FIGS. 78-80  depict the blanks or sheets that are used to make one of the side panels  151  or  152 . Since the side panels are identically constructed, only side panel  151  will be descried. Side panel  151  is composed of three blanks or sheets  151 A laminated with a sheet  151 B. Sheet  151 B forms the outer surface of the side panel when operatively installed in a rack and has a plurality of cutouts  194  shaped like the tongues  156 ,  157 , whereby when the flange is folded into operative locked position it is flush with the outer surface of the side panel. A flange  195  on its bottom end is folded around the bottom ends of the laminated sheets  151 A, as shown in  FIG. 80 . In the particular example described herein, the blanks  151 A and  151 B are made of 61-BC-KRAFT/40. 
         [0166]    The side panels and back panels preferably are made of a moisture resistant material such as ClimaGuard® by International Paper Company. 
         [0167]      FIG. 81  shows a blank  154 A for making an inner part or core  196  of a shelf  154 . The blank comprises two panels  197 ,  198  foldably joined along an edge opposite the edges on which tabs  76 A,  76 B are formed, and  FIG. 82  shows how the blank is folded to make one piece used in making the core. Two of these pieces are laminated together for each shelf. Small tabs  199  project outwardly from the sides of the core adjacent the edge on which the tabs  76 A,  76 B are formed. In the particular example described herein, the blank is made of 61-BC-KRAFT/40. 
         [0168]    A blank or sheet  154 B for making a shelf wrap  200  is shown in  FIG. 83 , and in  FIG. 84  the wrap is shown being applied to the core  196 . The wrap comprises two panels  201 ,  202  foldably joined along an edge opposite the edges on which tabs  76 A,  76 B are formed. Small tabs  203  project from opposite side edges of panel  201  in positions corresponding to the tabs  199  on the core, and the tongues  156 ,  157  project outwardly from opposite side edges of panel  202  in positions corresponding to the positions of the tabs  199  and  203 . In the particular example described herein, the wrap is made of 44-B-KRAFT. 
         [0169]    When a shelf  154  is assembled to the rack, the tabs  199  and  203  on the side edges of the shelves are engaged along with the tongues  156 ,  157  in slots  160  in the rack side panels. 
         [0170]      FIG. 85  shows a pole stop  210  that is placed between the center laminations in each shelf at the locations of the holes  158 ,  159  to limit the extend of insertion of a pole  165  or  165 ′ into the holes so that the poles extend at their ends only about half way through the thickness of a shelf. In the particular example described herein, the pole stops are made of 32-E-KRAFT. 
         [0171]      FIG. 86  shows a blank  17 A for making a pin  17 , as in the previous forms of the invention. 
         [0172]      FIGS. 87 and 88  show the fiber shelf-supporting poles  165  and  165 ′ used in the embodiment of  FIG. 70 . In the specific construction disclosed herein, the longer pole has a length of about 11⅜ inches, the shorter pole has a length of about 3¾ inches, and both have a diameter of about 1¼ inches. 
         [0173]      FIG. 89  shows a header graphics panel  220  that is applied to the front top surface of the back wall. In the particular example disclosed herein, the header graphics panel  220  is made of 32-B-KRAFT, and has notches  221  in its bottom edge for clearance of the tabs  76 A,  76 B on the back edge of the top shelf in an assembled rack. 
         [0174]    The blank for making the skirt assembly  170  is shown in  FIG. 90 . The blank comprises the upper panel  171 , side flanges  173 , first and second front flange parts  172 A,  172 B that are folded to make the front depending flange  172 , and tabs  225 . To erect the skirt assembly, flanges  173  and tabs  225  are folded upwardly and tabs  225  are then folded inwardly. Front flange part  172 A is then folded upwardly against tabs  225 , and second front flange part  172 B is then folded inwardly and downwardly over the tabs  225 , with the narrow tabs  226  on the bottom edge of second flange part engaged in slots  227  to hold the skirt assembly in folded orientation. The shorter shelf support poles  165 ′ are inserted through the holes  159 ′ in the panel  171  and into the holes  159  in the bottom surface of the bottom shelf to form a wrap. 
         [0175]    A blank for making the graphics wrap  180  is shown at  230  in  FIG. 91 . The blank includes a first flange  231  folded to the top of back panel  181 , and a second flange  232  folded to the first flange. When the wrap is applied to a display rack, the flanges  231  and  232  are folded inwardly and downwardly over the top edge of the back wall of the rack. In the particular example disclosed herein, the wrap is made of 32-B-MWOS. 
         [0176]    The steps of assembling the rack  150  are shown in sequence in  FIGS. 93-110 , and are believed to be self-explanatory. Briefly,  FIGS. 93-95  show the shelves  154  being assembled to the back panel  153  by inserting the tabs  76 A,  76 B into the slots  75 A,  75 B. The side panels  151  and  152  are then installed, as shown in  FIGS. 96-98 , by moving them into position and inserting the tongues  156 ,  157  and tabs  199 ,  203  on opposite side edges of the shelves through the slots  160  in the side panels. The shelf support poles  165  are then installed, as shown in  FIGS. 99-101 , followed by folding of the tongues and insertion of the forward end thereof into the slits  161  in the side panels as shown in  FIGS. 102-104 . The assembly is then turned onto its face as seen in  FIG. 106  and pressure exerted against the back panel  153  to ensure that the tabs and notches along adjacent side edges of the back and side panels, and the shelf tabs extended through the slots in the back panel, are all fully seated. The locking pins  17  are then inserted into the openings  18  in the ends of the tabs extended through the back panel as shown in  FIGS. 107 and 108 . Thereafter, as shown in  FIG. 110 , the graphics wrap  180  is wrapped around the back and side panels of the display rack and the flanges  184  are inwardly folded and inserted between adjacent shelves, where the flanges are held by friction to retain the graphics wrap in place. 
         [0177]    A variation of the  FIG. 72  embodiment is shown at  300  in  FIGS. 111-115 . This form of the invention is structurally the same as the  FIG. 72  embodiment, but it has a different graphics wrap  301 . In this form of the invention, the graphics wrap  301  has a back panel  302  adapted to extend across one side edge portion of the back panel of the display rack, a side panel  303  adapted to extend across one side of the rack, and a front panel  304  adapted to extend across one edge portion of the front of the display rack. As seen in  FIG. 113 , the back panel  302  has a plurality of slots  305  therein adapted to receive the tabs  76 A that extend through the set of slots adjacent one side edge of the back panel, and a plurality of pieces of double face tape  306  are placed on the inside surface of the front panel in positions corresponding to the locations of the shelves. To install this wrap, the back panel  302  is first placed over the tabs  76 A and the pins  17  then inserted to hold the back panel in place. The wrap is then folded around the side and front panels and the double face tape adhered to the fronts of the shelves. 
         [0178]    All of the components of the various embodiments of racks disclosed herein are made of 100% recyclable materials, e.g. fiber-based containerboard, and at least the structural components comprise multiple sheets laminated together. At least some of the components, and particularly the side panels and back panels comprise a material that is treated to enhance its moisture resistance. A suitable material is ClimaGuard® containerboard by International Paper Company. 
         [0179]    Although specific flute combinations and materials have been described herein, it should be understood that the disclosed materials were selected for a particular purpose, and it is within the scope of this invention that other materials could be employed depending upon the intended use and requirements of the display rack. 
         [0180]    The mechanical interlocks provided by the tabs, slots and locking pins, and the laminated construction of the components, form a very strong, rigid structure that resists twisting and is durable over prolonged periods of use in a retail environment. The components can be shipped flat in a very compact package, and can be quickly and easily assembled without requiring the use of tools. 
         [0181]    While particular embodiments of the invention have been illustrated and described in detail herein, it should be understood that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention as defined by the appended claims.