Product securement and management system

0001The present invention relates generally to shelf assemblies for use in merchandising product and more particularly to shelf assemblies that improve the securement and management of merchandised product.

BACKGROUND OF THE INVENTION

0002It is known that retail and wholesale stores, such as drug stores, grocery stores, discount stores, toy stores, and the like require and use a large amount of shelving both to store product and to display the product to consumers, in displaying product to consumers to promote and improve store sales, these stores situate or position the product toward the front of the shelf so that the product is visible and easily accessible to consumers. This desirable positioning has certain drawbacks. For instance, with this desirable "front- facing" of product, the stores are finding that relatively small products or packages of high value can be the target of thieves. Certain items can represent a high value to potential thieves who can either resell the items or use them for other illegitimate purposes, as in the case of certain pharmaceutical products. This theft is increasing and is now a significant cost to the retailer because thieves prefer to steal many products at once or in as short amount of time as possible. To do this, for example, thieves will "sweep" the shelf with their arm collecting the items into a purse, bag or coat very quickly and exit the store without drawing attention.

0003Theft can be the result of both customers and employees actions and has been difficult to eliminate. Attempts to deter and prevent theft have proven to be only partially effective. For instance, in-store cameras often do not observe the theft clearly enough to catch or prosecute the thief. In addition, in-store security personnel are rarely in the correct position to actually observe a thief in action. As a result, theft continues to be a significant problem and cost in the management of product inventory.

0004The present invention is directed at overcoming these and other known drawbacks and problems with existing shelving systems. United States Patent Specification <patcit id="pcit0001" dnum="US4682825A"><text>4,682,825</text></patcit> describes a self service rack incorporating a security device. The rack comprises a plurality of shelves, a plurality of vertical walls mounted to the shelves and a barrier mounted to depend pivotally from an upper shelf and extending toward a next lower shelf. The depth of the barrier is slightly less than the distance between the shelves minus the height of the predetermined number of articles, usually one, which can thus be removed from below the barrier at any one moment. A locking mechanism is arranged for freeing the barrier to swivel upwards for restocking the shelf.

BRIEF SUMMARY OF THE INVENTION

0005The present invention overcomes the above-mentioned problems by addressing the securement and management of product in a retail setting. As will become evident below, the invention has the ability to inhibit "sweeping" of product by a thief and to limit the taking of large amounts of product from a shelf in a short period of time. Using one or more methods such as placing the shelves closer together, using product dividers that extend from the front edge of the shelf and between the shelves, and placing front walls having a specific height that results in a smaller opening to limit access to product, the present invention will inhibit sweeping of product and the removal of numerous products at a time. The present invention also has the ability to alert store or security personnel and security cameras of a potential theft situation, while minimizing the impact on access to product by legitimate shoppers. By incorporating an alert device that detects movement of a movable barrier installed over the smaller opening above the front wall, the present invention will provide an alert signal indicative of the potential theft of numerous products from the shelf.

0006According to the present invention therefore a product management and securement system for deterring theft of items from a merchandise display comprises: <ul id="ul0001" list-style="none" compact="compact"><li>a plurality of shelves, including at least a first and second shelf;</li><li>a plurality of vertical walls mounted to the shelves; and</li><li>a barrier mounted to the second shelf and extending toward the first shelf;</li><li>at least one lock mechanism;</li></ul> characterized by: <ul id="ul0002" list-style="none" compact="compact"><li>a retaining wall mounted to the first shelf, the retaining wall having a height that limits access to the items on the first shelf, the retaining wall including an opening to permit product to be pushed back away from the retaining wall and including at least one mounting opening for the mounting of at least one lock mechanism; and</li><li>at least some of the vertical walls located between the first and second shelf;</li><li>the barrier being selectively locked to the retaining wall through the use of the at least one lock mechanism.</li></ul>

0007Other features and advantages of the invention will become apparent to those skilled in the art upon review of the following detailed description, claims and drawings in which like numerals are used to designate like features.

BRIEF DESCRIPTION OF THE DRAWINGS

0008<figref idref="f0001">Figure 1</figref> depicts a front elevation view of an exemplary embodiment of a product securement and management system of the present invention.

0009<figref idref="f0001">Figure 2</figref> depicts a partial side elevation view of the exemplary securement and management system of <figref idref="f0001">Figure 1</figref>.

0010<figref idref="f0002">Figure 3</figref> depicts a bottom view of an exemplary embodiment of a pullout shelf that may be used with the present invention.

0011<figref idref="f0002">Figure 4</figref> depicts front elevation view of an exemplary embodiment of the product securement and management system of the invention incorporating the pullout shelf.

0012<figref idref="f0003">Figure 5</figref> depicts a side elevation view of an exemplary pullout shelf illustrating the product dividers and the restocking of product on the shelf.

0013<figref idref="f0003">Figure 6</figref> depicts a side elevation view of an exemplary mounting of a front retaining wall and a secondary retaining wall to the shelf in addition to an exemplary pusher mechanism.

0014<figref idref="f0004">Figure 7</figref> depicts a front elevation view of an exemplary embodiment of a front retaining wall and a secondary retaining wall.

0015<figref idref="f0004">Figure 8</figref> depicts a front elevation view of an exemplary embodiment of a front retaining wall and a secondary retaining wall with product displayed on the shelf.

0016<figref idref="f0005">Figure 9</figref> depicts a bottom view of an exemplary alert device mounted to the exemplary securement and management system of <figref idref="f0001">Figure 1</figref>.

0017<figref idref="f0005">Figure 10</figref> depicts an exemplary lock mechanism that may be used with the present invention.

0018<figref idref="f0006">Figure 11</figref> depicts an exemplary embodiment of a movable barrier and barrier extension that may be used with the present invention.

0019<figref idref="f0006">Figure 12</figref> depicts a close up view of the movable barrier and barrier extension of <figref idref="f0006">Figure 11</figref>.

0020<figref idref="f0007">Figure 13</figref> depicts a close up view of an exemplary handle that may be used with the movable barrier or barrier extension of <figref idref="f0006">Figure 11</figref>.

0021<figref idref="f0007">Figure 14</figref> depicts a close up view of the movable barrier and barrier extension of <figref idref="f0006">Figure 11</figref> defining an opening and mounting structure for receiving the lock mechanism of <figref idref="f0005">Figure 10</figref>.

0022<figref idref="f0008">Figure 15</figref> depicts a partial front elevation view of the exemplary securement and management system of <figref idref="f0001">Figure 1</figref> including the use of a security camera.

0023<figref idref="f0008">Figure 16</figref> depicts a partial front elevation view of the exemplary securement and management system of <figref idref="f0001">Figure 1</figref> including the use of a video monitor.

0024<figref idref="f0008">Figure 17</figref> depicts a diagram of an exemplary switching operation between a camera image and an image from a video player on the monitor of <figref idref="f0008">Figure 16</figref>.

0025<figref idref="f0009">Figure 18</figref> depicts another exemplary lock mechanism that may be used with the present invention.

0026<figref idref="f0010">Figure 19</figref> depicts another view of the exemplary lock mechanism of <figref idref="f0009">Figure 18</figref>.

0027<figref idref="f0010">Figure 20</figref> depicts a back view of the exemplary lock mechanism of <figref idref="f0009">Figure 18</figref>.

0028<figref idref="f0011">Figure 21</figref> depicts yet another exemplary lock mechanism that may be used with the present invention.

0029<figref idref="f0011">Figure 22</figref> depicts another view of the exemplary lock mechanism of <figref idref="f0011">Figure 21</figref>.

0030<figref idref="f0012">Figure 23</figref> depicts a close-up view of the lock plate of the exemplary lock mechanism of <figref idref="f0011">Figure 21</figref>.

0031<figref idref="f0012">Figure 24</figref> depicts another view of the lock plate of <figref idref="f0012">Figure 23</figref>.

0032<figref idref="f0013">Figure 25</figref> depicts an exemplary embodiment that includes the use of a clip that may be used to further secure a side wall to the shelf.

0033<figref idref="f0013">Figure 26</figref> depicts an isometric view of the clip of <figref idref="f0013">Figure 25</figref>.

0034<figref idref="f0014">Figure 27</figref> depicts a close-up view of the mounted clip of <figref idref="f0013">Figure 25</figref>.

0035<figref idref="f0015">Figure 28</figref> depicts an exemplary electrical power bar that may be used with the invention.

0036<figref idref="f0016">Figure 29</figref> depicts another view of the power bar of <figref idref="f0015">Figure 28</figref>.

0037<figref idref="f0017">Figure 30</figref> depicts an exemplary embodiment that includes a side wall that may be used to provide further security for product on a shelf or a portion of a shelf.

0038<figref idref="f0017">Figure 31</figref> depicts another view of the wall of <figref idref="f0017">Figure 30</figref>.

0039<figref idref="f0018">Figure 32</figref> depicts an isometric view of a clip that may be used to further secure a side wall to the shelf.

0040<figref idref="f0019">Figure 33</figref> depicts another view of the clip of <figref idref="f0018">Figure 32</figref>.

0041Before the embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. Rather, the phrases and terms used herein are to be given their broadest interpretation and meaning. The use of "including" and "comprising" and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof. The use of the terms "mounted," "connected," "coupled," "positioned," "engaged" and similar terms, is meant to include both direct and indirect mounting, connecting, coupling, positioning and engaging.

DETAILED DESCRIPTION OF THE INVENTION

0042The present invention relates to the securement, management, and distribution of products in settings such as a retail setting and includes numerous embodiments. One embodiment involves a shelf management and display system that resides either on a standard or existing "dealer" shelf typically found in a retail store or on a shelf designed with certain advantages in securing products and deterring theft. The embodiment may include uprights of a pre-existing shelving system or may be a stand alone unit. The display system includes front-facing systems, which force product to the front of a shelf. Such systems may use various methods, such as gravity, friction, magnetism, or spring- urged pushers or paddles to bring product to the front of a shelf near the aisle. Many examples of spring-urged systems that orient products toward the front of a shelf exist and include the systems described in <patcit id="pcit0002" dnum="US6041720A"><text>U.S. Patent No. 6,041,720 to Hardy</text></patcit>, <patcit id="pcit0003" dnum="US4830201A"><text>U.S. Patent No. 4,830,201 to Breslow</text></patcit>, and International Application No. <patcit id="pcit0004" dnum="US0215760W"><text>PCT/US02/15760</text></patcit> and corresponding International Publication No. <patcit id="pcit0005" dnum="WO02091885A1"><text>WO 02/091885 A1 to Hardy</text></patcit>.

0043Referring to <figref idref="f0001">Figures 1 and 2</figref>, in one embodiment of the present invention, a shelf management and display system 100 includes vertical uprights 102 and product shelves 104 removably mounted to the uprights. The shelves 104 may be mounted at various positions along the uprights 102 depending on the desired positioning and spacing of the shelves 104. Similarly, the shelves 104 may be moved or relocated to different positions along the uprights 102 as necessary. As shown in <figref idref="f0002">Figures 4</figref> and <figref idref="f0003">5</figref>, the shelves 104 may be pull-out shelves that pull away from the uprights 102 like drawers. As illustrated by <figref idref="f0002">Figure 3</figref>, the shelf 104 may incorporate a locking device 117 which involves cooperating catches that contact each other in the locked position and substantially release this contact in the unlocked position and that when released will permit the shelf 104 to pull- out and away from the uprights. The shelves or uprights may involve other locking devices, such as magnets, latches, notches, binders, tension or the like. Once pulled away, the store personnel can restock the shelf with product and then slide the shelf 104 back to its original position and relock the shelf.

0044A front retaining wall 116 may be positioned along the front edge of the shelf 104. The front retaining wall 116 can serve as a "fence" to restrain the product in the product lanes 112 and assist in preventing the product from falling off the front of the shelf 104. The retaining wall 116 stops the forward movement of product that is caused by the urging of the pushers, described below. As exemplified by <figref idref="f0003">Figure 6</figref>, the retaining wall 116 may be mounted to a channel or rail 118 that extends along the front edge 119 of the shelf 104. The channel or rail 118 may be mounted to existing holes in a standard dealer shelf, or secured by any other known manner to the shelf 104. The retaining wall 116 may be mounted to or on the channel or rail 118. The front retaining wall 116 may be made of a clear plastic to permit visualization of the product on the shelf and provide a more aesthetically pleasing organization to the merchandised product. The front retaining wall 116 can also be created from opaque or semi-transparent material, or from wire, and can be adaptable to display graphics. The front retaining wall 116 can have a variety of configurations, such as rectangular, oblong, repeating patterns or the like.

0045As more dearly shown in <figref idref="f0004">Figure 7</figref>, the front retaining wall 116 may also include holes or openings 120 extending therethrough that are spaced along the wall 116. The holes 120 permit the consumer and store personnel to push the product back and away from the retaining wall 116 for ease of insertion and removal of the product.

0046As shown in <figref idref="f0001">Figures 1 and 2</figref>, the retaining wall 116 can have a height that permits the removal of a single product at a time or, depending on the desired level of security, a couple of products or a few products at a time. In other words, the height of the retaining wall 116 can permit limited access to and removal of product from the display system 100. Stated another way, the retaining wall 116 is not so tall as to prohibit any access to the product, but is sized to allow the consumer or store personnel to access and lift a limited number of product over the retaining wall 116 at one time. This limited removal of products is accomplished through the use of the retaining wall 116 and the close proximity of the shelf 104 positioned above the product. That is, in one embodiment, the shelf 104 located above the product will be positioned in close proximity to the top edge of the product, or the top edge of the product divider 110, whichever is taller. The shelf 104 located above the product, the product dividers 110, and the retaining wall 116 will form an opening or window 131 through which only a single, two, or possibly a few, product(s) can be removed at one time or in a single motion. This configuration also deters "sweeping" of product from the shelf 104. The size of the window 131 can be adjusted by adjusting the location of the shelf 104 above the product, the dividers 110, and/or the retaining wall 116, or through the use of a second retaining wall 122, barrier 130, and/or barrier 140, described below. This window 131 adjustment permits flexibility with the system and allows the store to set the window 131 size depending on the product size and how many products they want to permit consumers to remove at a time.

0047In an exemplary embodiment, if taller products are merchandised on the shelves 104, or if a smaller window 131 is desired, a second retaining wall 122 may be positioned behind or possibly in front of the retaining wall 116 to serve as a retainer for the product. As used herein, the second retaining wall 122 may be referred to as a "tab" and may include any retaining structure or "fence" that can be selectively configured or mounted to the shelves 104 to provide selective theft prevention of specific products, such as high theft items. Consequently, the second retaining wall or tab 122 may have many configurations, shapes and designs, and may be used in front of individual rows of product or groups of rows of product.

0048As shown in <figref idref="f0003">Figures 6</figref> and <figref idref="f0004">7</figref>, the second retaining wall or tab 122 may be mounted to or on a second channel or rail 124 that extends parallel with the channel or rail 118. The retaining wall or tab 122 may be slidable relative to the shelf 104 or rail 124, or may be fixed relative to the shelf 104 or rail 124. The tab 122 can be positioned between adjacent dividers 110 and held in position between the dividers 110. In other words, the tab 122 may not be permitted much slidable movement in or on the channel or rail 124 because the dividers 110 will hinder such slidable movement. In some embodiment, the dividers 110 contain a portion that serves as a stop to prevent the tab or first retaining wall from moving laterally. Such configuration further prevents theft of the product as potential thieves will not be permitted to simply slide the tab 122 to the side and remove numerous products at a time.

0049The second retaining wall or tab 122 will have a height that permits access to and removal of a limited number of product. If desired, the tab 122 may have a height that permits removal of only one product at a time. With the use of tabs 122, the display system 100 will have flexibility in that tabs 122 of varying height may be positioned in front of the product lanes 112 to accommodate various sized products. That is, if a row of product has a product height that is different than a product in an adjacent row, tabs 122 of varying height can be used to provide the proper level of security and access to the product.

0050In one embodiment, the tabs 122 may be sized to extend across one product lane 112 or in front of a single row of product. In an alternative embodiment, the tab 122 may be sized and shaped to extend across multiple product lanes 112. In this embodiment, the tabs 122 could include slots or channels to permit the tabs to "straddle" the dividers 110 and thereby extend across multiple product lanes, in addition, the dividers 110 could extend through the slots or channels and thereby inhibit slidable movement of the tabs 122.

0051The second retaining wall or tab 122 may also be used in place of the retaining wall 116. hi other words, the front "fence" on a product facing may be the tabs 122 of varying height, length and width, or of the same dimensions. In this configuration, the channel or rail 118 may be used to mount dealer-shelf accessories, such as clip-in signage, price tag holders, and the like. The tab 122 also can be attached to the divider 110 or can be formed such that the tab 122 and divider 110 are an integral piece. A wall or partial wall structure such as tab 122 can exist at the front of the divider 110 and can extend to the left or right or to both the left and right of the divider. This wall or partial wall can be used with or without a front retaining wall 116.

0052In an exemplary embodiment, the tabs 122 may include holes or openings 125 through the tab 122, similar to the holes or openings 120 in the retaining wall 116, to permit the consumer and store personnel to push the product back and away from the retaining wall 116 and tab 122 for ease of insertion and removal of the product. In other words, the holes or openings 126 allow product to be replaced by a consumer who removes it and decides not to purchase the product. To this end, the holes or openings 120, 125 are constructed to allow finger access therethrough to push back the row of product. Once the products are pushed backward, the consumer or store personnel can replace the removed products back into the facing. It should be understood that tabs 122 also can be used that do not include the holes or openings 125.

0053In an exemplary embodiment, the tab 122 may provide securement for an individual row of a product facing. That is, it may be desirable to provide additional theft deterrence for an individual row of product, in this configuration, the tab 122 having the desired dimensions may be positioned in front of a desired product row to provide additional securement for just that row of product. This embodiment will provide the stores with additional flexibility with their planograms and product facings in that individual tabs 122 of different dimensions may be placed at various locations across the facing to enhance the securement of particular products.

0054In an embodiment, retainer tabs 122 can be used on an individual facing basis for specific products. If a shelf is merchandised with product packages of variable height, the retainer wall 116 must be of a height that allows the shortest product package to be lifted over it. If a shelf 104, barrier 130, or barrier 140 is employed above the product, then the shelf 104 or barriers 130, 140 must be located at a height above the product to allow the placement of the tallest product below it. This may allow a thief easy access to the taller product by being able to easily lift the taller product in quantity over the relatively short retainer wall 116. It can be desirable, then, to increase the height of a front barrier only in front of the taller product. The second retaining wall or tab 122 can be of a taller height than the retaining wall 116 and can be generally taller than required for the small product packages. The retainer wall or tab 122 can therefore be constructed and used to limit access to the taller product and removal of several taller products at a time or in one motion, further securing product and deterring theft. Similarly, the retainer wall or tab 122 can be constructed and used to limit access to smaller but deeper products and to limit the removal of several smaller but deeper products at a time or in one motion. The retainer tab 122 thus allows flexible placement of product on a shelf by the retailer and manufacturer, no matter the size, shape, and configuration of the product.

0055The retaining wall 116 and tab 122 may be mounted, directly or indirectly, to the shelf 104 using numerous techniques. The retaining wall 116 and tab 122 may be slidably mounted to or receivable in the channels or rails 118, 124, which are secured to the front edge of the shelf through fasteners, adhesives, friction, tension, magnetism, or other restraining techniques and methods. The retaining wall 116 and tab 122 may also be directly mounted or connected to the shelf 104 also through the use of fasteners, adhesives, friction, tension, magnetism, or other restraining techniques and methods. The retaining wall 116 and tab 122 may be fixed to the shelf 104 or removably mounted to the shelf 104 to permit additional flexibility in the design and level of security of the system.

0056Pushers 126 may be placed behind product between the back wall 106 and the front edge of the shelf 104 to push the product forward so that it may be removed from the front of the shelf. The retaining wall 116 and tabs 122, if used, in some embodiments can stop the forward movement of product that is caused by the urging of the pushers. Known pushers may be used with the invention, including the pushers and pusher systems described in <patcit id="pcit0006" dnum="US6041720A"><text>U.S. Patent No. 6,041,720 to Hardy</text></patcit>, <patcit id="pcit0007" dnum="US4830201A"><text>U.S. Patent No. 4,830,201 to Breslow</text></patcit>, and International Application No. <patcit id="pcit0008" dnum="US0215760W"><text>PCT/US02/15760</text></patcit> and corresponding International Publication No. <patcit id="pcit0009" dnum="WO02091885A1"><text>WO 02/091885 AI to Hardy</text></patcit>. The pushers 126 may be spring-urged pushers that move along a track 128 to push product toward the front edge of the shelf 104, as shown in <figref idref="f0003">Figure 6</figref>. Track 128 can form a floor on one side of the divider. A second floor, with or without a track, can be located on the other side of the divider.

0057In an embodiment, the pushers 126 may have a pusher face or paddle 129 that may extend laterally to increase the pushing surface of the pusher to thereby pusher wider product more effectively. In other words, the pusher 126 may have an expendable pusher face to push either narrow product or wide product. The pusher face or paddle 129 may be extendable from a retracted position to one of several extended positions. The extended pusher face locates the product pushing surface behind the center or near the center of the wider product, thereby greatly enhancing the pushing leverage on the wider product. Numerous other types of pushers and pusher faces may be used with the invention, including the systems and pushers described in <patcit id="pcit0010" dnum="US772134A" dnum-type="L"><text>U.S. Patent Application Serial No. 10/772,134 to Hardy</text></patcit>.

0058The pushers 126 may be stand-alone units that are mountable to the shelf 104 using any known technique, including the channel mounting technique depicted in the figures. That is, in one embodiment, the pusher 126 may be mounted to a front rail or channel 133, as shown in <figref idref="f0003">Figure 6</figref>, and may be slidably adjustable within or on that rail or channel. Alternatively, the pushers 126 may be used in conjunction with dividers 110 and may be operatively mounted to the dividers 110, as disdosed in the above referenced patents and application, or as known in the art.

0059In another embodiment, the pushers 126 may incorporate spring mechanisms, such as coil springs, that include an indicia strip. The indicia strip is provided on spring mechanism and contains data relating to the position of the pusher 126. A sensor assembly may scan the indicia strip and transmit data representative of the product and the position of the pusher on the display system to a store computer or some other suitable device, such as a portable computer or controller. The transmitted data can be used to determine inventory levels and can be done so in real time. With this embodiment, the amount of product removed from a particular location in the store can be determined. This information can be used to determine the effectiveness of product placement and promotional displays, particularly when a product can be obtained from various places within the retail store. And with respect to deterring theft, a deviation in the typical purchasing habits of the consumer can trigger an alarm. That is, the alarm can be used to alert security personnel to the fact that too much product has been removed from the shelf at one time and thus a potential theft has occurred. The location of the incident can also be used to alert a security camera so as to focus the camera in the direction of the potential theft, as discussed below. With this embodiment, numerous types of sensors and detection techniques may be used to monitor the relative position and movement of the pusher 126. For example, in an embodiment, the indida strip may contain numerous types of patterns that can be optically readable or can be read using several different types of detection methods, such as passive variable capacitance, inductance, resistance, magnetics, or active signal detection. Numerous other types of sensors and detection techniques are possible with the invention for detecting unusual movement of the pusher 126 that may be indicative of a potential theft situation, including the systems and techniques described in <patcit id="pcit0011" dnum="US772010A" dnum-type="L"><text>U.S. Patent Application Serial No. 10/772,010 to Swafford et al</text></patcit>..

0060In other exemplary embodiments, the merchandised product may be urged toward the front of the shelf 104 through other techniques, including friction, gravity and/or magnetism. Each of these techniques may be used with the display system 100 and the teachings of the present invention. These techniques may be used with or without dividers 110, depending on the desired application. In one embodiment, the shelf is not completely horizontal but has an incline or decline from back to front.

0061In another embodiment, the merchandised product may be urged toward the front of the shelf 104 through vibration or quick movements that orient products in a particular direction on the shelf 104. Vibration can cause products to move forward on the shelf 104 and prevent them from moving backward so that the product is front facing. This vibration may be applied through mechanical, electrical or other structures or designs.

0062In one embodiment, directed vibration moves product toward the front of the shelf. The directed vibration causes product to move in particular directions or in one direction and not to move in other directions. Through this vibration, which is instituted through the shelf 104, upright 102, floor, wall, ceiling or other structure, or through a vibrative pulse or signal traveling through the air, the product moves in a particular direction, such as frontward.

0063In another embodiment of the vibration technique for urging product forward on the shelf 104, general undirected vibration is applied to the system. This vibration may be applied through the shelf 104, upright 102, floor, wall, ceiling, other structure or through vibration or a signal traveling through the air. Directors, such as small toggles, ridges, flanges, fingers, or the like, cause product to move in a particular direction depending on their configuration, shape, and orientation. These directors can channel the energy from unspecific vibration and force product in a particular direction, such as frontward. The directors can be placed on the shelf 104, divider 110, floors, walls or ceilings of the system and can be incorporated into the product itself.

0064In an embodiment of the vibration technique, product sits on a floor and friction moves product toward the front of the shelf. In one embodiment, the floor may be a flat surface panel operatively coupled to a motion providing device. In use, product is placed on the flat surface panel and a combination of gravity and friction hold the product in place on the flat surface panel. The motion providing device then slowly moves the flat surface panel toward the retaining wall 116 located at the front of the shelf 104. After a preset amount of time, or through product position sensing techniques, the motion providing device quickly, in a jerking motion, pulls the flat surface panel in the opposite direction or, in other words, toward the back of the shelf. By doing so, the quick motion of the flat surface panel breaks the bond of friction between the product and the flat surface panel causing the flat surface panel to slide relative to the product and the product to remain at its location. The motion providing device will then repeat the previously described process and begin to slowly move the flat surface panel toward the retaining wall 116. Examples of such vibration techniques for urging product forward on a shelf are disclosed in <patcit id="pcit0012" dnum="US541859P" dnum-type="L"><text>U.S. Patent Application Serial No. 60/541,859 to Hardy</text></patcit>.

0065As indicated above, the dividers 110, retaining wall 116 and tabs 122 assist in preventing a thief from sweeping a number of products into his or her coat or bag or from taking several products in the same facing. To even further limit the access to the product, in another exemplary embodiment, a horizontal barrier 130 (<figref idref="f0001">Figure 2</figref>) may be included above the product packages and secured to the front edge of the shelf 104 positioned above the product. The barrier 130 may be fixed to the front edge of the shelf 104 or may be fixed to uprights 102. The barrier 130 further deters unobstructed access to the product in the product facing by reducing the area, window or opening through which product could be removed from the shelf. The barrier 130 may be constructed separate from the shelf or may be integral with the shelf. The barrier 130 may span one row of product on a facing, or may span multiple rows of product, depending on the desired level of security. Alternatively, the barrier 130 may comprise another shelf 104 positioned just above the product. In this embodiment, the shelf 104 above the product is positioned in close proximity to the product. The barrier 130 restricts access from the front of the shelf 104 to only one or a few products positioned behind the front product in a facing row to permit the removal of only a few products from a shelf, or a product pusher, at one time or in one motion. The retaining walls 116 and tabs 122 may be used conjunctively with the barrier 130 to prevent product from being easily removed from the shelf 104. In other words, the present invention contemplates the use of one, two or multiple barriers or walls to prevent several products from being removed from the shelf at a time or in one motion. The barrier 130 may be made of various materials and may be secured to the front of the shelf 104 through any known technique.

0066A further embodiment of the invention incorporates a barrier 140 that spans across one or two, some, all or the majority of the top of the product on a shelf 104. The barrier 140 functions similar to a door in that it may be hinged or movably mounted to the edge of the shelf 104, or the barrier 130, just above the product to be protected. As used herein, the term "barrier" is meant to include any structure that will prevent, inhibit or obstruct access to the product on the shelf 104. The barrier can embody numerous shapes and configurations. The barrier 140 may be mounted to the shelf 104 using existing mounting holes on the shelf. The barrier 140 also may be mounted on the front edge of a front rail from the shelf above it. The front edge of the shelf can have hooks or "j" shapes on its underside. The barrier 140 can have apertures which fit within the hooks or "j" shapes. The barrier 140 defines a bottom lip or edge that may meet or overlap the top edge of the retaining wall 116 or tab 122. Such meeting or overlap further closes off access to the product except with deliberate action. In an exemplary embodiment, as shown in <figref idref="f0007">Figure 13</figref>, the barrier 140 may include a handle 202 to assist in moving the barrier 140 from a closed position to an open position, and vice versa. The handle may be molded with the barrier 140 along the edge of the barrier as exemplified by <figref idref="f0007">Figure 13</figref>, or the handle may be a separate component attached, mounted, secured, or adhered to the barrier 140 using any known technique. One skilled in the art will appreciate that the invention is not limited by a particular shape or configuration of the handle and that the handle may define numerous shapes or configurations. Moreover, the barrier 140 may be configured with a reinforcing rim that extends along the edge of the barrier 140. The reinforcing rim provides additional structural integrity and rigidity to the barrier 140. The reinforcing rim may also be equipped or configured with a handle. If the barrier 140 is configured with a locking mechanism as described herein the reinforcing rim will assist in preventing a potential thief from bending or breaking the barrier 140 and thus giving the thief access to the product that is intended to be locked and secured on the shelf.

0067A hole or opening 204 may be located in the barrier 140 through which may be mounted a cable lock or similar locking mechanism, as discussed below.

0068In an alternative embodiment, the product display system includes inverted features. The aspects of the invention that are placed on a floor or a shelf and extend upward can be placed on a ceiling or extend downward, and vice versa. For example, the barrier 140 and retaining wall 116, the dividers 110, and tabs 122 may be inverted. It is contemplated that in some embodiments the retaining wall 116, the dividers 110, and/or tabs 122 may be configured above the barrier 140 which would extend upwardly from the shelf 104. The retaining wall 116, the dividers 110 and/or tabs 122 may be placed on the underside of the shelf above the product and extend downward. Pushers 126 and/or tracks 128 can be secured to the underside of a shelf such that the pushers extend downward and the pusher springs are located near or behind the portion of the pusher that is near the underside of the shelf.

0069In some embodiments, to access product behind the barrier 140, the barrier 140 must be moved or lifted, which requires a deliberate movement and the use of one hand to hold the barrier 140 in place. While the barrier 140 is lifted or moved, the product can be removed. A consumer or store personnel who uses one hand to hold the barrier 140 in place, will need to use the other hand to remove product from the display system 100. This embodiment is constructed to inhibit the ability of a consumer to access product with two hands at the same time. While product is accessible to the consumer or store personnel, the removal of large amounts of product in a short period of time is deterred. The barrier 140 can be created from a clear, opaque or semi-transparent material and may be hinged or slidable in a variety of common ways.

0070Referring to <figref idref="f0006">Figures 11 and 12</figref>, an adjustable and removable barrier extension 206 may be configured with the barrier 140. The barrier extension 206 may be used to provide additional product security by creating a larger barrier to prevent or limit access to the product on the shelf. The barrier extension 206 may be selectively mounted to the barrier 140 through the use of mounting holes 208 and fasteners 210. As shown in the figures, several mounting holes 208 can be located on either the barrier 140 or the barrier extension 206 or both. These mounting holes can be aligned vertically or non-vertically. The several mounting holes 208 permit the barrier extension 206 to be adjusted relative to the barrier 140 to permit the barrier extension 206 to extend a desired distance, depending on the application, the desired level of security, or the placement of the shelves. Other techniques for mounting or attaching the barrier extension 206 to the barrier 140 are possible with the invention, including techniques using other types of fasteners or adhesives.

0071The barrier extension 206 can define numerous shapes and configurations depending on the desired application and level of product securement. For example, the barrier extension 206 can be configured to extend across one row of product, one facing, or more than one row or facing. The barrier extension 206 may also be made of a clear, transparent, or semi-transparent material to permit or prevent the product on the shelf to be visible to a consumer or stock person. The barrier extension 206 may also include a handle similar to the handle 202 described above.

0072The barrier extension 206 may include a reinforcing rim 212 that provides additional structural integrity and rigidity to the barrier extension 206 to further provide additional product security. The reinforcing rim 212 may also be equipped or configured with a handle 214. If the barrier extension 206 is configured with a locking mechanism as described herein, or configured to be in a locked position, the reinforcing rim 212 will assist in preventing a potential thief from bending or breaking the barrier extension 206 and thus giving the thief access to the product that is intended to be locked and secured on the shelf.

0073A locking mechanism may be further added to the barrier 140 to further hinder or prevent access to the product on the shelf, hi an exemplary embodiment, as shown in <figref idref="f0005">Figure 10</figref>, a cylinder lock 200 may be used to secure and lock the barrier 140 or barrier extension 206 in a closed position to prevent access to the product. The lock 200 may be mounted to the barrier 140 or barrier extension 206, through an opening or hole 216 (<figref idref="f0007">Figure 14</figref>), and may be configured to mount through the openings 120 in the retaining wall 116.

0074In one embodiment, the lock 200 may engage an arcuate-shaped wall portion 117 configured in or formed with the retaining wall 116. The arcuate-shaped wall portion 117 will further secure the lock 200 to the retaining wall 116 by permitting the locking tab of the cylindrical lock 200 to more securely seat on, or be held in place relative to, the retaining wall 116. With the use of a lock, such as lock 200, a consumer or store personnel will need to use a key, special tool, or access card to open the lock prior to moving or lifting the barrier 140.

0075In one embodiment, the lock 200 may engage an arcuate-shaped wall portion 117 configured in or formed with the retaining wall 116. The arcuate-shaped wall portion 117 will further secure the lock 200 to the retaining wall 116 by permitting the locking tab of the cylindrical lock 200 to more securely seat on, or be held in place relative to, the retaining wall 116. With the use of a lock, such as lock 200, a consumer or store personnel will need to use a key, special tool, or access card to open the lock prior to moving or lifting the barrier 140.

0076Referring to <figref idref="f0009 f0010">Figures 18-20</figref>, another exemplary lock mechanism is depicted. A lock 280 may be a key-locked rotating oval-shaped lock. The lock 280 is secured to the retaining wall 116 through a hole 282 formed in the retaining wall 116. More specifically, and referring to <figref idref="f0010">Figure 20</figref>, the lock 280 includes an anchoring bolt that defines a bolt head 284. The bolt head 284 and washer, if used, will secure the lock 280 to the retaining wall 116. As can be seen in <figref idref="f0010">Figure 20</figref>, numerous holes 282 may be positioned along the retaining wall 116 to provide flexibility in the location and placement of the lock 280, as well as providing for the use of numerous locks 280. The lock 280 also can include flanges 290, 292 that interact with retaining wall 116.

0077Referring to <figref idref="f0009">Figures 18</figref> and <figref idref="f0010">19</figref>, the barrier 140, or barrier extension 206 if used, defines an oval-shaped opening 286. Similar to the flexibility provided by the numerous holes 282, numerous openings 286 may be placed along the barrier 140 or barrier extension 206 to provide the same flexibility. As shown in <figref idref="f0009">Figure 18</figref>, when the lock 280 is in a locked position, the opening 286 prevents the lock 280 from passing through the opening 286. As illustrated by <figref idref="f0010">Figure 19</figref>, when the lock 280 is moved to an unlocked position through the use of a key 288, the oval-shaped lock 280 will to pass through the oval- shaped opening 286 thus permitting the opening of the barrier 140 or barriers extension 206. With the use of the lock 280 and its mounting to the retaining wall 116, as opposed to a lock mounted on the barrier 140 or barrier extension 206 and extending into the shelf, there will be no interference with product on the shelf, as may sometimes occur with the barrier-mounted locks. In addition, the lock 280 can, but need not, interact with the channels or rails 118, 124 and can leave these channels or rails substantially free to receive other objects such as a retaining wall or tab 122. As can be appreciated, the invention is not limited to the depicted oval-shape lock 280 and opening 286 as well as the illustrated placement of the lock and opening; rather, many various shaped keyed or keyless locks may be used with similarly shaped openings formed in the barrier or barrier extension and placed in numerous locations and still achieve the benefits of the invention.

0078Alternatively, <figref idref="f0011 f0012">Figures 21-24</figref> depict an additional locking mechanism. A lock plate 302 can extend through an opening or slot 304 formed in the retaining wall 116 and through an opening 306 formed in the barrier 140 or barrier extension 206. The lock plate 302 is configured to receive the padlock 300. One or more of the openings or slots 304 may be formed in the retaining wall 116 at various positions along the retaining wall including the depicted positions between the holes or openings 120 in the retaining wall 116. The openings or slots 304 are configured to receive the lock plate 302 and to secure the lock plate 302 onto the retaining wall 116, as described below. While the openings or slots 304 are depicted as vertical slots, other shapes and configurations of the openings or slots 304 are possible with the invention. Padlock 300 may be used to secure and lock the barrier 140 or barrier extension 206 in a closed position to prevent access to the product. The padlock 300 may be any known keyed or keyless padlock and may be mounted to the barrier 140 or barrier extension 206 through the use of a movable lock plate 302.

0079As can be appreciated, depending on the desired level of security, one or more lock plates 302 may be used to secure and lock the barrier 140 or barrier extension 206 in a closed position to prevent access to the product. The lock plates 302 are movable in that they can be positioned within any of the openings or slots 304 along the retaining wall 116. Being movable also permits the barrier 140 or barrier extension 206 to be made in various widths to protect only those products on the shelf that must be protected. In addition, the lock plate 302 need not interact with the channels or rails 118, 124 and can leave these channels or rails substantially free to receive other objects such as a retaining wall or tab 122.

0080In an exemplary embodiment, the lock plate 302 may be made of any suitable metal or plastic material and may define a nose 310 that will extend through the retaining wall 116 and barrier 140 or barrier extension 206, if used. The nose 310 further defines an opening or hole 312 for receiving the padlock 300, as illustrated by <figref idref="f0011">Figure 21</figref>. The nose 310 also defines a notch or cut-away 314 that, when assembled, will seat on the bottom edge of the opening or slot 304, as shown in <figref idref="f0012">Figure 24</figref>. Once in this position, the notch or cut-away 314 will prevent the lock plate 302 from being slid or pushed back out of the slot 304 and behind the retaining wall 116.

0081The nose 310 is connected to or formed with a back plate 316. The back plate 316 includes legs or retaining members 318 that, when assembled, will be positioned behind the retaining wall 116 and assist in holding the lock plate 302 on the retaining wall 116. The back plate 316 and retaining members 318 may take on numerous configurations that aid in holding the lock plate 302 to the retaining wall 116. The lock plate 302 may be configured to not only extend through the retaining wall 116 and barrier 140 or barrier extension 206, it may also extend through and be used with the tab 122.

0082One skilled in the art will appreciate that any known locking mechanism can be used with the invention, including a cable lock that may be mounted with the hole 204 (<figref idref="f0007">Figure 13</figref>), and any known key, special tool, access card, electronic, magnetic or wireless means (for keyless locking mechanisms) can be used to open the locking mechanism.

0083As depicted in <figref idref="f0004">Figure 8</figref>, an exemplary embodiment of the invention incorporates a system that causes an alert to store or security personnel that a potential theft situation exists. In one embodiment, lifting or moving the barrier 140 activates a mechanical or electronic alert device 142, generally depicted in the figures, that provides a signal, such as an audible, inaudible, infrared, radio-frequency, cellular, ultrasonic or electronic signal (including digital and analog signals), or a combination of these signals. This alert signal may be a sound, tone or voice annunciation that alerts store or security personnel that the barrier 140 has been opened or has been opened for an unusually long period of time and potentially represents a theft situation. The alert device 142 also may send an electronic or other signal to play a voice message via the store paging system, to activate a local or remote strobe or annunciator light, or to send a signal to a receiver, such as a store computer, a pager, cellular device, or other portable device carried by store or security personnel. The alert device 142 may also activate a security video camera to monitor the particular area or vicinity, or activate a monitor that is placed in the area or vicinity which would show the camera image to the consumers and potential thief, or transmit the camera image to security or store management via a web connection, cellular telephone, personal data assistant, or any other signal receiving device. The alert device 142 also may activate an advertisement, informational announcement or other statement or display that is provided through voice, video or video and voice. This advertisement, announcement or statement can be directed to the particular product or product type associated with product behind the barrier that activates the alert device. The alert device can be located such that barriers of a width of no more than one product facing will activate the alert device when lifted.

0084As used herein, the term "alert device" is meant to include any device or component that may provide an alert, warning and/or signal concerning a condition, situation, and/or circumstance. The alert device 142 may be hard-wired to the store's security system or may be a wireless system. Wireless systems, if used, provide increased flexibility in installation and can be readily installed in existing shelves without the need to install wires for either power or communication. In addition, the use of a wireless system allows for the gradual installation of a system. For example, items of high value (and therefore suffering from an increased likelihood of being stolen) or items that tend to have significant variations in customer demand can be monitored first. With a wireless system, the alert signal may be sent to not only the store's security system or computer, but also any portable device or receiver, such as a controller, personal data assistant, pager or cellular telephone that may be carried by store personnel or security. Also with the wireless or wired system, the store's computer can process further the alert signal to determine whether a theft situation exists and can generate reports which can be analyzed to fine tune product placement, placement of cameras, alert devices, sensors, and so forth, as well as fine tune the delays and actions initiated by potential theft situations. As understood by those skilled in the art the store's computer can be configured with the network server and can be accessible remotely through the world-wide web or other network, and can be controlled remotely through the world-wide web or other network.

0085In an exemplary embodiment, the alert device 142 is positioned on the shelf 104, either underneath, as depicted in <figref idref="f0004">Figure 8</figref>, or on top of the shelf. Existing mounting holes on the standard dealer shelf may be used to secure the alert device to the shelf. The alert device 142 may be positioned near to or adjacent to the barrier 140. The alert device 142 may be operatively connected to the barrier 140 through numerous techniques. In one embodiment, the alert device 142 includes a switch 144, such as a push-button switch, that will activate when the barrier 140 is moved or opened. That is, as the barrier 140 moves and comes in contact with the switch 144, either directly or through the use of an activator plate 145, the switch 144 is activated. Alternatively, in a closed-barrier position, the switch 144 is pressed, as the barrier 140 moves to an open position the barrier 140 moves away from the switch 144, thereby releasing the switch 144 and thus activating the alert device 142.

0086The alert device 142 may be operatively connected or coupled to the barrier to detect movement of the barrier through other methods or techniques. For instance, a motion sensor or similar sensory devices, such as a light-emitting diode sensor assembly, may be used to detect movement of the barrier and communicate that information to the alert device 142. The sensor may be mounted in a variety of locations including on the barrier itself or next to the barrier to detect barrier movement. Alternatively, a magnetic switch may be incorporated to detect movement of the barrier.

0087The alert device 142 may include sensory components and time-delay features that will calculate how long the barrier 140 has been moved or opened. Upon reaching a predetermined time period, in other words, as the barrier 140 has been moved or opened for a certain duration, the alert device 142 will send a signal, such as the above- mentioned signals, to alert the store personnel, security and/or the consumer that the barrier 140 has been opened or moved for a long period of time, thereby indicating a potential theft situation. In an exemplary embodiment, upon the passing of the predetermined time period, the alert device 142 may send an audio alert signal, including a signal different from a previous audio alert signal, that would draw attention to the vicinity. The alert device 142 can therefore be designed to provide its alert for a fixed period of time before becoming silent.

0088In another embodiment of the alert device 142, the audio alert signal is adjustable to provide a variety of alert tones of varying frequencies, or to announce that the barrier 140 has been opened or moved for too long and that the consumer needs to close the barrier 140, or to send a silent alarm to the store and/or security personnel. Different signals or frequencies can be used as the length of time in which the barrier has been opened or moved increases. Numerous combinations of alert signals are possible with the alert device 142 depending on the desired level of security. The alert signal is adjustable and numerous combinations of signals may be used to provide the desired signal level and thus security level, yet avoid turning away legitimate consumers from selecting and purchasing the product. That is, for example, the alert device 142 can be programmed to provide an alert signal that will draw the attention of surrounding shoppers or store/security personnel, yet short enough to limit aggravation of the legitimate consumers or stock person.

0089Also, in another embodiment, a two-tiered response could be implemented. For example, if the barrier 140 is moved, a signal could be transmitted directly to the security camera, or via the store computer or both, hi addition, an inaudible notification could be provided directly to security personnel. If the barrier 140 remains open or moved for a set period of time, more clearly indicating a potential theft, an additional audible alarm and flashing lights could also be activated, or any other alarm. Thus, the response could be configured to more carefully match the situation.

0090Referring to <figref idref="f0008">Figure 15</figref>, in an exemplary embodiment, a security video camera 260 may be placed in the vicinity of product that are high risk theft items, or other product of concern. As shown in <figref idref="f0008">Figure 16</figref>, a monitor 262 also may be placed in the vicinity of the high risk product. The monitor 262 may be used to show the security camera image to consumers and any potential thief. Thus, a consumer or potential thief that removes product from the shelf 104 of the display system 100 may realize that their actions are being watched by a camera and potentially recorded.

0091As can be appreciated, the position of the potential theft relative to the security camera 260 would be beneficial to provide an instruction to the security camera to focus on a particular position. This positional information could be generated by a number of methods, including providing a store computer with the security camera coordinate system for the security camera. The location of the alert device 142 relative to the security camera could be determined during setup and during a potential theft situation; the location of the alert device 142 could be used to direct the focus of the security camera. Alternatively, the security camera could be configured to focus in several positions, such as three points along an aisle, and the store computer could indicate which position was the most appropriate for the particular situation. One skilled in the art will appreciate that the described methods are illustrative because of the numerous methods of controlling the security camera that exist.

0092In addition to the value of such system in loss prevention, the monitor can show video in the form of advertising or consumer information. As illustrated by <figref idref="f0008">Figure 17</figref>, the monitor 262 can switch between the advertising or consumer information and the camera image through the use of a video switch 264. This switching activity can occur on a periodic basis, such as every 30 seconds, or can occur when predetermined conditions are met, such as the lifting of the barrier 140, the removal of product, the movement of a pusher, or input from a proximity sensor that a consumer has entered or approaches the area. By playing the video segment, the device not only reduces loss, but becomes a source of revenue when advertisers are charged to place their message on the system.

0093A secondary video source for the monitor on which advertising, consumer information or other content is shown can be a video player 266 such as a video cassette recorder, compact disk-video player, solid state digital video player, direct video, audio feed or other video sources. With respect to the switch 264, the switching action between the camera image and advertising or other content can be effected by a hardware timer or a small microcontroller, hi one embodiment, the secondary video source can contain a multitude of short video segments which are randomly or non-randomly selected by the timer or microcontroller. The camera 260 may be a small, stand-alone type, not connected to any part of an existing security system, or it may be any typical store security camera existing in the store's security network. The monitor 262 may be a small flat, color, LCD type monitor and can be placed at numerous locations on or near the shelf 104. For instance, the monitor may be placed in overhead signage above the merchandised product or it can be attached to the shelf 104 edge, hi some applications, a larger monitor, such as a CRT-type, plasma, LCD or projection monitor, can be used. A preferred solid-state digital video player may comprise the secondary video source. The source may be housed in the same enclosure as the monitor or may be located remotely from the monitor.

0094Referring back to <figref idref="f0002">Figures 4</figref> and <figref idref="f0003">5</figref>, in another exemplary embodiment, the shelf 104 on which the product rests may be a "pull-out" shelf. The "pull-out" shelf allows store associates or personnel access to the product to restock the shelf but prevents a thief from obtaining such access. The pull-out shelf allows easy access to all product on the shelf. This function, however, requires that the shelf not be movable by the consumer or thief and therefore the pull-out function must be protected by a key-lock, special tool, or other locking mechanism, hi this embodiment, the product dividers 110 may be designed to be at least equal to the height of the tallest product package on the shelf. As the shelf 104 is pulled out, the product lane or dividers may cause the barrier 140 to rise. If the height of the dividers 110 is lower than the tallest product package, pushing the shelf back in may cause the barrier 140 to catch on the product packages and make it more difficult to return to its closed position. Additionally, pulling out the shelf 104 will raise the barrier 140 which may activate an annunciator or signal generator, as explained above.

0095Referring to <figref idref="f0005">Figure 9</figref>, in an exemplary embodiment, a barrier placed on a top-most shelf 104 may include a lock-box 108 that may be used for storage of overstock product or additional display system 100 components. In an embodiment in which the top-most shelf 104 is a pull-out type, the shelf 104 will pull out while the horizontal barrier above it remains in place, allowing product to be easily accessed. As indicated above, the lock- box 108 may also be mounted to the vertical uprights 102, through known mounting techniques, and may be mounted at any location on the display system 100. The lock- box 108 may use any known locking mechanism that permits key or key-less entry to the lock-box 108. One skilled in the art will appreciate that other security components may be mounted to the lock-box 108 including the security camera, monitor, and alert device 142, to name a few.

0096In an embodiment, a stationary shroud 180 may placed toward the top of the product display system 100. The shroud 180 provides security and graphic placement, and product may be stored within it. The shroud 180 provides security in that it functions as a top wall or barrier preventing access to the product from a point above the product. The shroud 180 may mount on or to an existing shelf. The shroud 180 may be fixed or adjustable. With an adjustable shroud, the shroud can be positioned at numerous locations on the product display system. In addition, the shroud 180 can be a pull-out shroud functioning in manner similar to the exemplary pull-out shelf 104 described above. Moreover, the shroud 180 can also serve as a shelf to hold product. In other words, the product display system 100 could include multiple shrouds 180 that function as shelves to hold or display product. Also, the shroud can be configured to mount the barriers 130, 140, through numerous known mounting techniques. In an exemplary embodiment, the lock box 108 having a lockable door 109, as shown in <figref idref="f0005">Figure 9</figref>, may be placed on the shroud 180 for additional product storage and graphic placement.

0097The product display system 100 of the invention offers various levels of securement and theft protection. Each level described herein can be used separately and various or all levels can be used in conjunction with each other. Each level can also be added to or adapted with existing shelf systems or be provided as a stand alone system. The divider or retaining walls 110 provide securement. The front retaining wall 116 or "fence" provides securement, with or without the retaining tabs 120. The barriers and access doors 130, 140 over the top of the retaining wall 116 provides securement. The close positioning of the shelf 104 over the product located on the shelf below provides securement. The audible or other signal that is generated by the alert device 142 when the barrier 140 has been open for a set period of time provides securement. The security camera and video and display devices provide securement. Each of these separable aspects of an embodiment of the invention can be used on its own in a retail setting, or can be used in conjunction with other aspects of the embodiment. Each separable aspect can be added to existing shelving or display systems to effectively retrofit and add one or more levels of security to such existing systems.

0098The invention may feature various levels of theft deterrent in addition to the barrier 140, For example pushers 126, dividers 110, and retaining walls 116 can be coupled with a shelf 104 or barrier 130, or both, above the product to provide securement to the product. The pushers, dividers, retaining walls, shelf, and barrier allow approximately one, two or three packages to be removed through an opening at one time from a facing of the display system. Second retaining walls or tabs 122 may be used to provide individual securement for specific rows of product. The front wall 116 and tabs 122 may also include holes or openings that extend therethrough that would require the consumer to push on the product through the holes or openings in order to remove the product from the shelf.

0099A further level of securement may include the addition of a theft-warning notification device, such as an alert device 142, or other signal transmission device. The alert notification or signal transmission is activated if the barrier 140 or access door is open a predetermined amount of time. This delay can be adjusted to any duration or eliminated. The notification provides an audible, inaudible, infrared, radio-frequency, electronic, or cellular signal that notifies consumers and/or store and security personnel that the barrier 140 has been open for a particular period of time. The signal transmission can send a signal to a store computer, store personnel or a security camera or monitor. The signal can alert the store computer or personnel that the barrier 140 or access door has been opened for a particular period of time and can activate the security camera and monitor to show the thief an image of himself or herself in front of the product. This image can be recorded. Additional alert notifications or signal transmissions can be activated as the amount of time the barrier or access door is open increases.

0100An additional level of deterrence of theft by consumers or store personnel is the use of a locking mechanism on the shelf 104 to limit unauthorized personnel from pulling out the shelf. The system can require the use of a key or an uncommonly or commonly shaped instrument to be inserted into a concealed access slot in the front or underside of the shelf. This method is designed to require someone with specific knowledge of the shelf operation to disengage the lock, hi an embodiment, the barrier 140 or access door on the shelf 104 can be automatically raised for restocking purposes when the shelf is pulled out, then re-engaged once the shelf has been returned to the closed position. In this application, an audio alert may be incorporated that indicates that the shelf is being restocked with product.

0101In addition, in an embodiment, a stationary shroud 180 may be placed toward the top of the product display and management system. The shroud provides security by inhibiting access to the product from above the product. Also, a lock box can be placed anywhere on the system to store additional product that will be secured by a key lock or some other locking mechanism.

0102In one embodiment of the present invention, various aspects of the invention are added to portions of existing shelves. In some environments, there are only one, two or a few potential high-theft products among a display of many products. Aspects of the present invention can be added solely to the portion of a shelf management and display system with respect to those high-theft products. For example, a barrier 140 could be placed solely over those products. In addition, side walls could be placed to cover one or more of the sides of the products to further deter sweeping or other theft. A front barrier, a locking mechanism or other aspects of the invention described herein could be used solely with the high-theft products or other highly relevant products in a display and not used with other products in the same display. In one embodiment, a particular set of relevant products can be effectively segregated from the other products within the same display. This particular set of relevant products can be subject to additional security aspects described herein that are not used with the remaining products in the display.

0103Referring to <figref idref="f0015 f0016">Figures 28-29</figref>, there is depicted an adjustable power bar 400 that may be selectively mounted to the back wall 106. The power bar 400 will provide electrical power to various components mounted to the shelves, including any video monitors, security cameras, lighting, illuminated signage, overhead header lights, radios, stereos, or any other components that may be mounted to a shelf or the product display and require electrical power. As illustrated by the Figures, the power bar 400 is selectively adjustable between several positions to accommodate shelf height changes or adjustments without causing obstruction with the mounting or adjustment of the shelf.

0104Conventionally, power outlets were mounted to the shelf and were not easily movable. In fact, significant force was required to unlock the power outlets from the track on which they were mounted to then move the power outlets. In other known applications, the power outlets were mounted to conductive tracks, similar to track-lighting tracks which included embedded power tracks. With those track-type systems, the power outlets needed to be placed at correct locations and snap-fit into position. Once installed, the power outlets were not slidable.

0105The power bar 400 of the invention solves these problems and other known problems by providing a power source for a product display that is easily mountable to the display, such as the back wall 106, and is easily adjustable to accommodate changes made to the positions of the shelves. The power bar 400 includes an elongated body 402 that may be attached to the back wall 106 of the display. As illustrated, the power bar 400 may be mounted in a vertical manner and the elongated body 402 may extend the entire height of the product display or alternatively less than the entire height of the product display. The power bar 400 may be slidably moved (as indicated by direction arrow 401) a sufficient distance to avoid interference with the product shelf that may be placed at approximately the same vertical height, or with the repositioning of the mounted product shelf. The power bar 400 includes one or more power outlets 404 that may be configured at numerous positions on the power bar 400. Once in the desired position, a fastener, not shown, may be positioned through an adjustment slot 406 to secure the power bar 400 to the back wall 106 at the desired height. The adjustment slot 406 is elongated to permit further adjustment of the power bar 400.

0106The elongated body 402 defines an elongated hollow cavity 408 through which may pass conducting wires 410 that are used to supply the power to the power bar outlets 404. The elongated body 402 may also include a recessed channel 412 formed in the body 402 and along each side of the body 402. The channel 412 may be used as a receptor for receiving and aligning the power bar 400 onto the body 402. The power bar 400 may fit on or within the channel 412 in a tongue-and-groove manner, or any other suitable mounting connection that permits slidable movement of one component relative to another. Once installed, the power bar 400 will slide relative to the body 402 in or on the channel 412.

0107Variations and modifications of the foregoing are within the scope of the present invention. It should be understood that the invention disclosed and defined herein extends to the individual features and all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present invention. The embodiments described herein explain the best modes known for practising the invention and will enable others skilled in the art to utilize the invention. The claims are to be construed to include alternative embodiments to the extent permitted by the prior art.