Abstract:
A track for a display case. The track can be mounted to a front edge of a shelf to allow prominent display of food or beverage containers, as well as promoting more complete use of the space within the display case. While applicable to all beverage display cases, the track of the present invention is particularly beneficial in retail or related commercial display cases, as it places products in a prominent visual location without obscuring a user&#39;s ability to identify or retrieve a container disposed on a shelf behind the track. In one form, it allows for substantially horizontal alignment of containers, to minimize the likelihood of obscuring products situated behind the track.

Description:
[0001]     This application claims the benefit of U.S. Provisional Application No. 60/663,332 filed Mar. 18, 2005. 
     
    
     BACKGROUND OF THE INVENTION  
       [0002]     The present invention relates generally to shelving augmentation, and more particularly to a forward-mountable track for retail and related commercial use within a display case.  
         [0003]     Refrigerated display cases are commonly used in retail settings to provide for convenient dispensing of food, beverages and related products. In a common form, the display cases employ numerous generally horizontal or gravity-fed shelves onto which the product is placed while awaiting purchase. These shelves are configured to maximize the number of cans, bottles or related product containers that can be seen in the limited amount of space typically available in the display case. Furthermore, the display cases are typically equipped with glass or related optically transparent hinged doors and optional (generally fluorescent) lighting to make it easier to visually identify a familiar or desired product. The makers and distributors of such product are often jockeying for premium shelf space, examples of which include eye level and up-front (closest to the consumer) locations. Such competition also extends to room-temperature display shelving, including gondola-style shelving.  
         [0004]     A relatively recent attempt to more fully exploit the precious display case “real estate” in the extremely competitive beverage display industry involves the use of tray-like tracks that mount directly onto the door such that they occupy the void between a plane defined by the front edge of the rows of shelving and a plane defined by the rearward-facing part of the door. In one form, suction cups are used to secure the trays to the generally smooth glass surface. Such devices prominently display the product containers placed therein; however, their use tends to obscure products that are placed on the shelves behind them, especially when beverage containers placed within them are oriented in their normal (vertical) position. In addition, unless the suction cups are properly secured, the weight of the containers could cause tray separation. Similarly, the use of excessive speed in opening the doors could cause container toppling. In either event, ensuing spillage, breakage or related mess is likely to occur. In addition, the trays can not be adjusted to accommodate display cases of varying widths, thereby necessitating that a vendor, supplier or retailer inconveniently keep numerous such trays on hand. Furthermore, trays (especially the wire frame variant) do not readily accept advertising or promotional material for display or easy replacement, either of which is subject to relatively frequent change.  
         [0005]     What is needed is a display track that can be unobtrusively mounted inside a conventional display case to promote easy viewing of containers placed therein such that the container does not become obscured by other products placed in the display case. What is further needed is a display track that can be mounted in a secure and stationary way such that containers placed therein are not susceptible to becoming dislodged. What is further needed is a display track that can be adjusted to promote an optimized fit of the track within the display case.  
       BRIEF SUMMARY OF THE INVENTION  
       [0006]     These needs are met by the present invention, where according to one aspect, a display track can be mounted directly onto existing display case shelving. The track is attachable to a shelf in such a position that a product placed within the track does not substantially obscure a product placed on the shelf. As used in the present context, the term “substantially” refers to features that, while in theory would be expected to exhibit exact correspondence or behavior, may in practice embody something slightly less than exact. As such, the term denotes the degree by which a quantitative value, measurement or other related representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue. Similarly, a product the access of or view of which is unhampered, unimpeded or unobscured is one that can be readily identified or grasped by a consumer or related user without having to move or otherwise disturb products placed between the user and the intended product. In this context, a row of products placed in the display track of the present invention in an orientation dictated by the display track would tend to not obscure, hamper or impede a consumer&#39;s ability to identify or grasp products placed on a shelf behind the row of products placed in the display track, while a row of products placed in a display track of the prior art, which typically involves an upright orientation of the displayed product, would tend to obscure, hamper or impede a consumer&#39;s ability to identify or grasp products situated on the shelf behind the track.  
         [0007]     The display track of the present invention is made up of a shelf-engaging portion defining a substantially rigid structure and a product cradle portion rigidly coupled to the shelf-engaging portion. The product cradle portion may include at least one line of weakness formed therein to define a corresponding frangible portion. It will be understood that the line of weakness facilitates separation of a portion of the length of the track through an appropriate snapping action, but is otherwise strong enough to carry a load normally associated with a product container placed in that portion.  
         [0008]     Optionally, the product cradle portion could be formed as an extruded piece. While such a form might not include the lines of weakness discussed above, it could allow the display track to be formed into various lengths, depending on the need. In another option, the track further comprises a label-mounting portion disposed on a forward-facing surface of the product cradle portion. In one configuration, the label-mounting portion includes numerous inwardly-pointing detents disposed on opposing ends of the forward-facing surface. The detents act as holders for a printed sheet, card or label so that a user can slide the sheet between the detents. The vertical dimension of the sheet is such that it is slightly greater than the distance between opposing detents such that once the sheet is inserted, it will not come loose. The structure is similar in effect to the tabs placed on the inside of a compact disc jewel case, where the tabs retain the information booklet that accompanies the compact disc. The product cradle portion preferably defines a substantially elongate direction along the track. In addition, the product cradle portion defines a substantially horizontal arcuate trough region. This is especially well-suited to cylindrical containers that can be displayed horizontally.  
         [0009]     Preferably, the line of weakness is formed across the substantially elongate direction. In a more particular form, the frangible portion formed by the line (or lines) of weakness is approximately six inches in length. In a particular option, the shelf-engaging portion, label-mounting portion and product cradle portion make up a unitary structure to define a one-piece construction, and is particularly well-suited to being made from a plastic material. In another option, a clip can be used to secure the shelf-engaging portion to the shelf. The clip is sued to provide secure, frictional fit, and may be made up of numerous components (including an bottom clip, top clip and lock clip). In a preferred form the various clip components can be made from bent or similarly-formed sheet metal, all held together by a fastener (such as a nut and bolt), or by a resilient snap-fit connection. In other forms, the clip components can be made from plastics or related polymers. Tight tolerances between the thickness of the bottom clip (which has a vertically upturned segment) and a corresponding slot-shaped cutout formed in the shelf-engaging portion of the track promote a secure fit.  
         [0010]     In one form, the display track is made from a plastic-based material, and can be sized to clip directly onto the front edge of a wire shelf. In a particular form, the display track allows for the horizontal placement of beverage containers therein such that even when full, the display track does not obscure other products placed on the shelves behind. Moreover, the length of the track is adjustable to accommodate any shelf width. For example, the display track may be made up of several frangible sections that can be broken off to accommodate a particular display case width. The arcuate shape of the trough may also be formed with different-dimensioned radii, thereby enabling containers (such as cylindrical beverage containers) to securely fit into the trough.  
         [0011]     According to another aspect of the invention, a shelf for display case is disclosed. The shelf includes a substantially tray-like structure configured to hold a plurality of product containers in a substantially upright orientation, and a substantially trough-like structure configured to hold a plurality of product containers in a substantially horizontal orientation forward of the substantially tray-like structure such that the trough-like structure is closer to the consumer than the tray-like structure. The trough-like structure includes at least one line of weakness to define a frangible portion. In the present context, a product or container is considered to be in an upright orientation when the container is stood on its end. Thus, liquid containers, such as bottles and cans, would be considered placed upright when stood on their axial ends. Stated another way, if the labeling on the container that pertains to the product inside is readable in a substantially horizontal, left-to-right format, the container is by convention situated in an upright orientation. Contrarily, a product or container is considered to be in a horizontal orientation when the container is laid on its side, or where the elongate dimension is placed substantially horizontal.  
         [0012]     Optionally, the shelf includes a label-mounting portion disposed on a forward-facing surface of the trough-like structure. This label-mounting portion may be configured similar to that of the previous aspect of the invention. The trough-like structure may be attached to the tray-like structure with a clip, or may be integrally formed with the tray-like structure.  
         [0013]     According to yet another aspect of the invention, a method of displaying a product for sale is disclosed. The method includes arranging product containers on a display shelf such that the product containers are in a substantially upright orientation; mounting a substantially trough-like structure to a substantially forward end of the display shelf, the trough-like structure defining a substantially horizontal container-receiving region that includes at least one line of weakness therein to define a corresponding frangible portion thereby; and placing a plurality of product containers in the trough-like structure such that a view of or access to product containers arranged on the shelf is substantially unimpeded. Optionally, mounting the trough-like structure comprises placing it in front of the shelf in such a way as to minimize the vertical distance the trough-like structure extends above and below the shelf. The shelf and trough-like structure can be disposed inside a cooled display case, or in an ambient (room-temperature) environment, such as a retail aisle. The method may further include breaking off at least a portion of the trough-like structure along the at least one line of weakness prior to mounting the structure to the display shelf.  
         [0014]     According to still another aspect of the invention, a method of displaying a product in front of a shelf in a retail environment is disclosed. The method includes arranging a display track to comprise a substantially horizontal container-receiving region. The method additionally includes ascertaining a width of the shelf and a length of the display track. The method additionally includes securing the track to the shelf with at least one clip, and placing a product in the track. Examples of products that can be placed in the track include, but are not limited to, bottles, cans, tubes of semi-solid materials (such as cookie dough), cartons or the like. Optionally, the clip is made up of numerous disparate components, such as a fastener, top clip, bottom clip and locking clip. In a particular embodiment, placing a product comprises placing the product in a substantially horizontal orientation such that the longest dimension of the product (or its container) is placed substantially along a horizontal axis, thereby minimizing the likelihood of obscuring the view of or access to products placed on the shelf behind the track. As with previous aspects, the track may include at least one line of weakness formed in the horizontal container-receiving region to define a corresponding frangible portion that can be broken off as needed in order to fit within a particular environment. For example, in situations where the length of the display track is greater than the width of the shelf, one or more portions of the track that extend beyond the shelf can be broken off along the line (or lines) of weakness. 
     
    
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS  
       [0015]     The following detailed description of the present invention can be best understood when read in conjunction with the following drawings, where like structure is indicated with like reference numerals and in which:  
         [0016]      FIG. 1A  is an elevation view of a portion of a display case with a door-mounted display track according to the prior art, where products placed behind the track are significantly obscured;  
         [0017]      FIG. 1B  is an elevation view of a shelf-mounted display track according to the prior art;  
         [0018]      FIG. 2A  is a perspective view of a display track according to an embodiment of the present invention connected to a display case shelf;  
         [0019]      FIG. 2B  is a side elevation view showing attachment of the display track of  FIG. 2A  to the display case shelf;  
         [0020]      FIG. 2C  is a plan view of the display track of  FIG. 2A ;  
         [0021]      FIG. 2D  is a front elevation view of the display track of  FIG. 2A ;  
         [0022]      FIG. 3  shows the placement of attachment hardware relative to a display case shelf;  
         [0023]      FIG. 4A  is a plan view of an alternate embodiment of a display track, shown mounted to a display case shelf;  
         [0024]      FIG. 4B  is a front edge view of the alternate embodiment display track taken along lines B-B of  FIG. 4A ;  
         [0025]      FIG. 4C  is a plan detail view of a single segment of the alternate embodiment display track and a corresponding portion of the shelf to which it is attached, taken along circle C of  FIG. 4A ;  
         [0026]      FIG. 4D  is an elevation view of the alternate embodiment display track taken along lines D-D of  FIG. 4C ;  
         [0027]      FIG. 4E  is a side elevation view of the alternate embodiment display track of  FIG. 4A , showing connection to the crossbar member of the display shelf;  
         [0028]      FIG. 4F  is a perspective view of another alternate embodiment display track of  FIG. 4A , showing connection to the longitudinal member of the display shelf;  
         [0029]      FIG. 5  is a close-up view of the display track of  FIG. 2A , as seen through the door of the display case; and  
         [0030]      FIGS. 6A through 6I  show steps involved in the attachment of the display track of  FIGS. 2A through 2D  to a shelf. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0031]     Referring to  FIGS. 1A and 1B , a conventional display case  1  with a display track  5  according to the prior art is shown. The case  1  can hold numerous shelves  2  onto which a plurality of containers (generally referred to as  3  and subsets thereof) can be placed. Although the containers  3  shown in display  1  are in the form of beverage bottles, it will be appreciated that other container configurations, including cans, cartons or jugs may also be stored and displayed, and that other such containers may be of different shape and size to those presently shown. In one popular form, the shelves  2  define a wire frame construction comprising longitudinal members  2 A and crossbar members  2 B (both shown in detail in  FIGS. 4A, 4C  and  4 E). The front of the shelves  2  may be covered with advertisements, product cost or the like. Referring with particularity to  FIG. 1A , display track  5  is mounted directly to door  4 , where suction cups  6  are used to keep the former secured to the latter. Referring with particularity to  FIG. 1B , display track  5  can be mounted to shelf  2  such as by bent hanger members or twisted wire (neither of which are shown).  
         [0032]     In either event, it is common to include fluorescent lights (not shown) behind the door frame of display case  1 ; in such configurations, additional front-to-back space between the inward-facing portion of the door and the product-holding shelves  2  is formed, thereby allowing the interference-free addition of display track  5 . Nevertheless, first containers  3 A placed in display track  5  tend to at least partially obscure second containers  3 B that are situated on one of the shelves  2 , regardless of whether the door-mounted tray of  FIG. 1A  or the shelf-mounted tray of  FIG. 1B  is employed. This is undesirable, as the products on the shelf  2  are not displayed as prominently as the retailer would like. In addition, fixed tray lengths mean that retailers or other users of display case  1  are forced to use incompatible tray sizes, resulting in less than optimum display benefit.  
         [0033]     Referring next to  FIGS. 2A through 2D  and  3 , a display track  10  according to an embodiment of the present invention is shown. The display track  10  includes a product cradle portion (also referred to as a trough or a cradle)  15  for accepting one or more first containers  3 A and a shelf-engaging portion  20  for connection of the display track  10  to a conventional shelf  2 . The trough of cradle  15  defines an arcuate region that can readily accommodate cylindrical devices, such as beverage containers. Cradle  15  includes a facade  30  on its forward facing surface to allow attachment of advertisements, product prices or related indicia. Mounting hardware, in the form of clip  25 , can be provided for attachment of shelf-engaging portion  20  to crossbar members  2 B of shelf  2 , and includes a lock clip  25 A, top clip  25 B and bottom clip  25 C that can be fastened to the shelf  2  by bolt  26  and cooperative lock nut  27 , all as shown with particularity in  FIGS. 2B and 3 . The components making up clip  25  can be made of any sturdy (preferably non-corroding) material, including plastic or metal, while at least the lock clip  25 A and bottom clip  25 C could be made from rigid metal wire or the like. A slot-shaped cutout segment  20 A extends the entirety of the elongate (longitudinal) dimension of display track  10 , and is sized to engage an upturned portion of bottom clip  25 C. As will be discussed in more detail below, cradle  15  may be made up of numerous smaller segments, or may include periodic lines of weakness  19  (only one of which is shown) that define one or more frangible portions along its longitudinal dimension, in either case to allow formation of a display track  10  of various desired lengths. In addition to longitudinal members  2 A and crossbar members  2 B, shelf  2  includes a conventional retainer  2   c  to deter tipping of second containers  3 B. The placement of display track  10  is such that visual and physical access to containers  3 B placed on shelf  2  is not hampered by first containers  3 A that are situated in cradle  15 .  
         [0034]     Referring with particularity to  FIG. 2B , the arcuate region of trough  15  is molded with various radii  15 A,  15 B to accommodate various product circumferences within the same trough  15 . Examples of the various sizes of cylindrical containers that can fit into the differing-sized radii  15 A,  15 B of trough  15  can be seen in  FIG. 2C . In addition, the angled end of lock clip  25 A forms a complementary fit with a groove formed in the upper rearward-facing portion of trough  15  to promote secure connection between them. Referring with particularity to  FIG. 3  in conjunction with  FIG. 2B , the clip  25  is sized to provide a secure friction fit against the front edge of shelf  2 . The nature of the fit (augmented by the weight of the containers  3 A disposed therein) ensures that the display track  10  remains securely mounted. Bolt  26  preferably includes a square-shaped downward protrusion such that once placed in a corresponding square hole in the top clip  25 B (shown in  FIG. 6C ), the two will not rotate relative to each other. Referring with particularity to  FIGS. 2A and 2D , facade  30  includes inwardly-pointing detents  30 A,  30 B to help hold a placard or related sheet containing printed indicia including price strips, advertisements or the like. Preferably, a series of detents  30 A,  30 B are inwardly-pointing and arranged on the top and bottom edges of facade  30 , either directly across from each other or staggered, to face detents disposed on the opposing edge. This allows a user to slide a card, sheet or related label configured to bear printed indicia between the detents such that it will remain in place by the overhanging detent portion. The resilient nature of the material (for example, plastic) of detent  30 A,  30 B facilitates insertion onto or removal from facade  30  of sheets or placards or related indicia-bearing signage. Referring with particularity to  FIG. 2C , slots  17  formed in cradle  15  allow refrigerated air from display case  1  to flow through display track  10  to enable improved convective cooling of containers  3 A,  3 B and the products within.  
         [0035]     In one form, the display track  10  can be made from a plastic material. Such a material would make the track display  10  particularly amenable to breaking off one or more segments along lines of weakness  19  to adjust the longitudinal dimension to fit within the space allotted in the display case  1 . In another configuration, the display track could be made from a more robust material (such as stainless steel or other food-grade metal). Such a configuration would be especially valuable in connecting to non-cooled shelves, such as those found in the aisles of a grocery store, where the threat of contact with a grocery cart or shopper could damage a less hefty piece. In a particular metal form, the display track can be made from a metal wire to define a frame-like structure, where various clip components could also be made from wire. It will be appreciated by those skilled in the art that other forms of the display track fall within the scope of this invention. This is especially true in situations where the display track  10  is made from a plastic-based material. For example, the cutout segment  20 A of shelf-engaging portion  20  of display track  10  can be shaped for example as an arcuate clip (not shown) and sized to form a snap-fit onto wire shelf crossbar members  2 B. In addition, clip  25  may include an arcuate connector that can snap-fit onto crossbar member  2 B of shelf  2 . In another embodiment, the display track  10  can form part of a shelf  2  such that the two can be sold, constructed and used as a single unit. In one such configuration, the display track  10  can be integrally formed with the shelf  2 , while in another, it can be attachable to the shelf  2  in a manner similar to that discussed below in conjunction with  FIGS. 6A  though  6 I, where the tray-like structure of the shelf  2  is used to display in a substantially vertical (i.e., upright) orientation beverage (or related product) second containers  3 , while the trough-like structure of the display track  10  is used to display first containers  3 A in a substantially horizontal (i.e., sideways) orientation.  
         [0036]     Other connection approaches can also be used. In one example (not shown), the display track could form an forward-facing integral extension to the shelf, thereby eliminating the need for a separate set of clips or related attachment devices. It will be appreciated that in this configuration, the separate clip  25  and corresponding display track  10  depicted in  FIG. 2B  would be integrally formed with one another to define a unitary (i.e., one-piece) structure that could be attached to a shelf  2  with fasteners, or by a resilient snap-fit connection. In a particular form, the trough  15  and clip  25  would be of unitary construction. In another example, referring next to  FIGS. 4A through 4F , details pertaining to the connection of a display track  110  according to alternate embodiments of the present invention are shown. In it, clips  125  are used to secure the display track  110  to shelf  2 . Referring with particularity to  FIGS. 4A and 4B , top and front elevation views respectively indicate placement of display track  110  on the front edge of shelf  2  with numerous clips  125 , as well as modular construction of display track  110  made possible by connecting numerous cradle segments  115 A- 115 I together end-to-end. In an alternate embodiment generally similar to that of the embodiment shown in  FIGS. 2A through 2D , the various segments  115 A- 115 I can define a line of weakness (not shown) between them, thereby defining frangible portions that can be snapped off to approximate a desired length. Referring with particularity to  FIG. 4C , details of the connection of cradle  115  to shelf  2  via clips  125 , where the variant with numerous segments  115 A- 115 I, are shown. A combination of snap-fit connections  125 A,  125 B, the first to the longitudinal members  2 A and second to the crossbar members  2 B of shelf  2 , ensure secure coupling between them. It will of course be appreciated that the segmented variant is shown for convenience, and that the variant employing frangible portions of cradle  115  could be incorporated similarly. As with the previous embodiment shown in  FIGS. 2A through 2D , slots  117  formed in cradle  115  allow for the flow of refrigerated air from display case  1  through display track  110  to improve the cooling of first and second containers  3 A,  3 B. Referring with particularity to  FIG. 4E , cradle  115  is used for accepting a first container  3 A, and includes a facade  130  to allow attachment of advertisements, product prices or related indicia. As mentioned above, second clip portion  125 B of clip  125  can be used to form a snap-fit connection with the crossbar member  2 B of shelf  2 , although it may also form a simple hanger member in order to avoid having to have it sized for such a snap-fit connection. Referring with particularity to  FIG. 4F , a single-piece molded clip  225  can be formed, being a more simplistic variant on clip  125  of  FIG. 4E , in this case not including the second clip portion. As with the clip portion  125 A, clip portion  225 A is sized and shaped to form a resilient snap-fit connection with the longitudinal members  2 A.  
         [0037]     The placement of display track  110  is such that visual and physical access to second containers  3 B placed on shelf  2  is not appreciably hampered. The arcuate nature of a connecting portion of clip  125  can be appreciated by reference to its cooperation with crossbar member  2 B, as shown with particularity in  FIGS. 4C and 4E . In addition, the segment  115 I of cradle  115  includes projecting dowels  122  and inserts  123  that can be used to fit into a corresponding aperture (not presently shown) of adjoining cradle segment  115 H (as shown in  FIG. 4B ).  FIG. 4D  shows the front elevation view of the display track  10  coupled to the shelf  2  of  FIG. 4C , while  FIG. 4E  shows a side elevation view, where a slot  120 A in cradle  115  is sized to permit the insertion of the front of clip  125  such that the two are secured to one another. The arcuate connector of clip  125  is resilient enough to promote a snap-fit over crossbar member  2 B of shelf  2 , while detents  130 A,  130 B on facade  130  are sized to accept a placard (not shown). It will be appreciated by those skilled in the art that clip  125  is preferably made from a resilient material (for example, a creep-resistant plastic) to permit such a snap-fit connection.  
         [0038]     Referring next to  FIG. 5 , placement of display track  10  according to the embodiment of the invention depicted in  FIGS. 2A through 2D  into a display case  1  is shown, where first containers  3 A situated horizontally therein offer prominent display of the product without obscuring the view of second containers  3 B placed on conventional shelf  2 . Similarly, the facade  30  allows attachment of advertisements, product prices or related indicia without obscuring similar labeling of the second containers  3 B. By being secured directly to the shelf (not presently shown) rather than to the door (such as by suction cups), the display track  10  avoids the need to have the first containers  3 A move when the door is opened, thus minimizing the likelihood of dropping and possible rupture of the container. It will be appreciated by those skilled in the art that while use of the display track  10  is shown with particularity for beverage containers, that it could be adapted for use with other products and their containers, and that such adaptation would be within the scope of the present invention. Examples of other uses include for containers for yogurt, chip dip or salsa, candy bars, cheese, cookie dough or the like.  
         [0039]     Referring next to  FIGS. 6A through 6I , steps involved in the connection of are shown. In a first step, the installer determines the width of the display shelf  2 . If the width of shelf  2  is greater than the longitudinal dimension of the display track  10  (which, in a preferred, although not necessary, embodiment is 26¼″), the entire length can be used. If the width of shelf  2  is not as great as the entirety of the longitudinal dimension of the display track  10 , but is longer than the length of the display track  10  at its endmost line of weakness  19  (for example, between 26¼″ and 16″), the installer can break off a portion of the display track  10  that extends beyond the line of weakness  19 , as shown in  FIG. 6A . In one embodiment, the frangible portions that correspond to the various lines of weakness  19  are approximately six inches in length. If the width of shelf  2  is less than the length of the display track  10  at its endmost line of weakness  19 , a second frangible section can be broken off along the next line of weakness  19 . It will be appreciated that while the labels identifying the products are shown having already been placed on facade  30  prior to installation of the display track  10 , such placards, labels or related signage could be mounted at any time during the installation process. Referring with particularity top  FIG. 6B , once the installer removes existing second container  3 B from the shelf or pushes back a product glide unit  2   d  (to which retainers  2   c  are attached) to expose the shelf longitudinal and crossbar members  2 A,  2 B. Referring next to  FIG. 6C , the installer slides the bolt  26  through a hole in the top of the V-shaped top clip  25 B, then as shown in  FIG. 6D , place the two with the apex of the V-shape pointing downward between adjacent longitudinal members  2 B so that the position of the V-shaped top clip  25 B will not obstruct the product glide unit  2 D, and inserting the bolt  26  through a slot-shaped aperture formed in bottom clip  25 C. Next, as shown in  FIG. 6E , while holding the assembly of top clip  25 B, bottom clip  25 C and bolt  26  firmly, the installer places a lock nut  27  on the threaded (downward end) of bolt  26  and tightens the lock nut  27  to a mostly (but not completely) tight position. In so doing, there is enough slack in the assembly to allow it to be slid back and forth along the longitudinal members  2 B but still secured to keep top clip  25 B, bottom clip  25 C, bolt  26  and lock nut  27  together as an assembly.  FIG. 6F  shows the installation of a second clip  25  in a manner similar to that of the first clip  25  shown in  FIGS. 6A through 6E . As shown in  FIG. 6G , display track  10  can now be secured to the clips  25  by aligning the slot-shaped cutout segment  20 A of shelf-engaging portion  20  with the upstanding portion of bottom clip  25 C. As shown in  FIG. 6H , the installer wedges lock clip  25 A between the shelf-engaging portion  20 , the bottom clip  25 C and a crossbar member  2 B of shelf  2 . Lock clip  25 A must be installed correctly to ensure a secure connection and to make sure that the display track  10  does not fall once installed. As shown in  FIG. 6I , once the clip  25  (including lock clip  25 A) is installed, the installer holds each end of the display track  10  and pushes firmly against the shelf  2 . Lastly, the installer tightens the lock nut  27  the remainder of the way so that nothing is loose. At this time, the display track  10  is ready to be loaded with product.  
         [0040]     While certain representative embodiments and details have been shown for purposes of illustrating the invention, it will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention, which is defined in the appended claims.