TRACK SYSTEM FOR MERCHANDISE SECURITY
CROSS -REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of priority to United States Application No. 62/277,049, filed on January 11, 2016, the entire contents of which are hereby incorporated by reference.
FIELD OF THE INVENTION
[0002] Embodiments of the present invention relate generally to security systems and methods for displaying items of merchandise in a retail environment.
BACKGROUND OF THE INVENTION
[0003] Retailers routinely display items of merchandise, such as telephones, portable computers (e.g. notebooks, laptops, tablets, etc.), e-readers, media players, and the like for customers to evaluate before making a purchase. These items of merchandise are continually being made smaller and lighter in weight due to advances in technology and materials. As a result, such merchandise is increasingly vulnerable and susceptible to theft. At the same time, the retail price, and hence the profit margin, for such merchandise continues to decline. Accordingly, these items of merchandise need to be secured by a security device that effectively and cost efficiently protects the merchandise from theft.
BRIEF SUMMARY
[0004] Embodiments of the present invention are directed to merchandise security systems and methods for displaying and protecting an item of merchandise from theft. In one embodiment, a merchandise security system includes a track configured to be engaged with a support surface and a sensor configured to be secured to the item of merchandise. The merchandise security system also includes a base for removably supporting the sensor and the item of merchandise thereon and a cable operably engaged between the sensor and the base. The sensor, base, and/or item of merchandise is configured to receive and/or provide power, security, and/or data signals via the track.
[0005] In another embodiment, a merchandise security system includes a track configured to be engaged with a support surface and a plurality of security devices each configured to operably engage an item of merchandise and to releasably engage the track for receiving and/or providing power, security, and/or data signals via the track.
[0006] In one embodiment, a method includes engaging a track with a support surface and operably engaging a plurality of security devices with the track for receiving and/or providing power, security, and/or data signals via the track. Each of the security devices is configured to operably engage an item of merchandise.
[0007] In another embodiment, a merchandise security system includes a track configured to be engaged with a support surface and a security device configured to operably engage an item of merchandise and to releasably engage the track for receiving and/or providing power, security, and/or data signals via the track.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0008] The detailed description of the invention provided hereafter may be better understood with reference to the accompanying drawing figures, in which embodiments of a merchandise security system for displaying an item of merchandise are disclosed, and in which like reference characters indicate the same or similar parts.
[0009] FIG. 1 is a side view of a merchandise security system for displaying and protecting an item of merchandise according to an embodiment of the invention.
[0010] FIG. 2 is a partial perspective view of a merchandise security system according to one embodiment of the present invention.
[0011] FIG. 3 is a perspective view of the base according to one embodiment of the present invention.
[0012] FIG. 4 is a partial perspective view of the base shown in FIG. 3.
[0013] FIG. 5 is another partial perspective view of the base shown in FIG. 3.
[0014] FIG. 6 is a front view of a merchandise security system according to one embodiment of the present invention.
[0015] FIG. 7 is a front view of a recoiler according to one embodiment of the present invention.
[0016] FIG. 8 is a perspective view of a security system including a track according to one embodiment of the present invention.
[0017] FIG. 9 is a plan view of the security system shown in FIG. 8.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[0018] One or more embodiments of a merchandise security system for displaying an item of merchandise are shown in the accompanying drawing figures and described below. The item of merchandise is typically a display model or an operational sample of electronic merchandise, such as portable telephones, smart phones, computers (e.g. notebooks, laptops, tablets, etc.), e-readers, media players, and the like, for a customer to examine before making a decision whether to purchase the item. The item of merchandise is typically displayed in a manner that permits a prospective purchaser to evaluate the operation and features of the merchandise, while protecting the merchandise from theft. In one embodiment, a sensor may be operably engaged with the item of merchandise for detecting various alarming conditions, such as the item being removed from the sensor. A cable may be operably engaged with the sensor at one end, while the opposite end may be secured to a recoiler. As explained in further detail below, the sensor may also be configured to detect an alarming condition of the cable, such as a cutting, severing, removing or detaching of the cable.
[0019] According to one embodiment shown in FIG. 1, the security system 10 generally comprises a security device 11, including a sensor 12 configured to be secured to an item of merchandise 14. The sensor 12 may be electrically connected to a connector 17 that is configured to electrically connect to an input jack of the item of merchandise 14. The security device 11 may also include a base 18 that is configured to removably support the sensor 12 and the item of merchandise 14 thereon. In some embodiments, the base 18 and the sensor 12 include one or more contacts 28, 40 for facilitating contact charging when the sensor is supported on the base. In addition, the security device 11 also includes a cable 20 that is coupled to the sensor 12 at one end and operably engaged with a recoiler 22 at an opposite end. As explained in further detail below, in some embodiments, a sense circuit or loop defined through the cable 20 and the sensor 12 may be electrically isolated from any charging circuit used to charge the sensor 12 and/or the item of merchandise 14. As such, the sense loop may be used to detect various security events associated with the cable 20, such as the cable being cut, shorted, and/or disconnected. The charging circuit allows for charging of the item of merchandise 14 and/or a power source 46 carried by the sensor 12 and/or the base 18. The sensor 12 may also be used to detect security events associated with the sensor and/or the item of merchandise 14, such as the item of merchandise being removed from the sensor.
[0020] The sensor 12 may be secured to the item of merchandise 14 using any desired technique, such as an adhesive and/or mechanical brackets. The sensor 12 may have a variety of shapes and sizes for being secured to the item of merchandise 14. In one embodiment shown in FIG. 1, the sensor 12 may include a sensing device 15, such as a pressure or plunger switch, for detecting removal of the item of merchandise 14. In addition, the connector 17 may be configured to be removably inserted into the input jack of the item of merchandise 14. Thus, the sensor 12 and the item of merchandise 14 may be electrically connected via the connector 17. The sensor 12 may include a printed circuit board (PCB), circuitry, or the like. For example, the sensor 12 may include charging circuitry for facilitating power transfer between the base 18 and the item of merchandise 14. The connector 17 may be electrically connected to the PCB using various techniques, such as via a cable. In the illustrated embodiment, the connector 17 is mounted to and extends from the sensor 12 but could be positioned at other locations depending on the location of the input port of the item of merchandise 14.
[0021] As noted above, the sensor 12 may include one or more electrical contacts 28. In some embodiments, the sensor 12 includes a plurality of electrical contacts 28. The electrical contacts 28 may be in electrical communication with the PCB in the sensor 12 and the connector 17. Alternatively, the electrical contacts 28 may be electrically connected to only the connector 17. In some embodiments, the sensor 12 may not supply power to the item of merchandise 14 when the item is lifted from the base 18. Rather, the item of merchandise 14 may operate using its own power source when lifted from the base 18.
[0022] The base 18 may be configured to be supported by a fixed support or display surface 25, such as a counter, shelf, fixture, or the like. The base 18 may be secured to the support surface 25 using any desired technique such as an adhesive, brackets, and/or fasteners. The base 18 may include one or more magnets 34 or magnetic material, and the sensor 12 may include one or more magnets 36 or magnetic material for releasably holding the sensor on the base. The magnets 34, 36 may aid in aligning the item of merchandise 14 in a desired display orientation.
[0023] The security device 11 may include a recoiler 22 and a cable 20 as discussed above. The base 18 may include an opening for receiving the cable 20. As such, the cable 20 may be extended through the opening when the sensor 12 and the item of merchandise 14 are lifted from the base, and the cable may be retracted through the opening when the sensor and the item of merchandise are returned to the base. The recoiler 22 may be spring biased in some embodiments such that the cable 20 is automatically retracted within the recoiler. The recoiler 22 may be mounted to an underside of the support surface 25 (see, e.g., FIG. 1), although in other embodiments, the recoiler may be housed within the base 18 and mounted on top of the support surface. Furthermore, the recoiler 22 may be in electrical communication with the cable 20. In this regard, the cable 20 may include one or more electrical conductors extending along the length of the cable. In some cases, the cable 20 may include a pair of conductors for defining a sense loop or circuit and conducting an electrical signal. In other cases, the cable 20 may include a single conductor, such as an optical conductor for conducting an optical signal (e.g., a fiber optic cable).
[0024] As discussed above, the base 18 may include one or more electrical contacts 40. The contacts 28, 40 of the base 18 and the sensor 12 are configured to align with one another and contact one another when the sensor is supported on the base. Thus, the base 18 and the sensor 12 are in electrical communication with one another when the sensor is supported on the base. The base 18 may be electrically connected to a power source 38 which is configured to provide power to the base and/or the one or more electrical contacts 40 in the base. The base 18 may include one or more printed circuit boards (PCB), circuitry, or the like for facilitating power transfer. The base 18 may also include charging circuitry that is configured to facilitate power transfer from the external power source 38 and the electrical contacts 40. Thus, when the sensor 12 is supported on the base 18, power is able to be transferred between the contacts 28, 40 and to the sensor 12. The connector 17 is electrically connected to the sensor contacts 28 as power is delivered such that power is provided to the item of merchandise 14. Therefore, the item of merchandise 14 may be powered by power transferred thereto and may be used to charge a battery associated with the item of merchandise. In some embodiments, any voltage adaption occurs prior to being delivered to the sensor 12. Voltage adaption may be needed in order to accommodate different items of merchandise 14 that require different operating voltages. Any voltage adaption may occur prior to power being provided to the contacts 28 on the sensor 12. Thus, the sensor 12 and adapter cable 16 do not provide any voltage adaption. However, in other embodiments, the sensor 12 may include a resistor or other identifier that detects the voltage requirements of the item of merchandise 14 which provides a signal to the base 18 for adjusting the voltage as necessary before providing power to the sensor. Although the aforementioned embodiments describe that power may be transferred via contact charging, it is understood that other techniques could be used to transfer power to sensor 12 and the item of merchandise 14. For example, inductive charging functionality could be employed for transferring power. Moreover, in some cases, the cable 20 may include one or more conductors for transferring power to the sensor 12 and/or the item of merchandise 14.
[0025] In some cases, the base 18 and the sensor 12 may include an electrical contact that detects that the sensor is lifted off of the base. For example, the sensor 12 and base 18 may each include a contact that is configured to engage one another when the sensor is supported on the base. These contacts may not transfer power. However, the contact on the base 18 may communicate with the PCB to indicate when the sensor 12 has been lifted off of the base and to cease transferring power to the electrical contacts 28, 40. This arrangement of contacts may reduce arcing and power surges when the sensor 12 is placed back on the base 18 since power will no longer be transferred to the contacts on the base after the sensor is lifted.
[0026] It is understood that the cable 20 may be any suitable cord, tether, or the like. In addition, the cable 20 may include one or more electrical conductors for transmitting electrical, security, and/or communication signals. In addition, the cable 20 may be a single strand, multi-strand, or braided. The cable 20 may be flexible to facilitate extension and retraction relative to the recoiler 22, and in some embodiments, may be formed of a cut-resistant material. Furthermore, the cable 20 may have various cross sections, such as round or flat.
[0027] In one embodiment, an end of cable 20 may be mechanically and optically connected to the sensor 12. Thus, the cable 20 may not be electrically connected to the sensor 12 in any way, and the conductors in the cable are electrically isolated from the power transmitted to the sensor and the item of merchandise 14. In one embodiment, the sensor 12 may define an opening for receiving an end of the cable 20. In some embodiments, the end of the cable 20 includes an optical transceiver 42 for communicating with the sensor 12 and/or the item of merchandise 14. Likewise, the sensor 12 may include an optical transceiver 42 for communicating with the optical transceiver at the end of the cable 20. The optical transceivers 42 may be used to transmit optical signals in predetermined sequences or patterns and/or receive optical signals and convert the optical signals into electrical signals. In addition, the optical transceivers 42 may be separated by an air gap so as to not be in physical contact with one another and such that the optical transceivers are electrically isolated from one another. The cable 20 may include one or more conductors for providing power to the optical transceiver 42, as well as sending and receiving signals to and from the optical transceiver in the sensor 12. Similarly, the sensor 12 may include a power source 46 that is configured to provide power to the sensor for interpreting signals provided by the optical transceiver 42, as well as power the optical transceiver for sending and receiving optical signals. Furthermore, the end of the cable 20 may be mechanically coupled to the sensor 12 using a variety of techniques and may be configured to rotate or swivel in some embodiments. In one example, the optical transceivers 42 may be configured to rotate relative to one another. Moreover, the conductors in the cable 20 may be connected to the optical transceiver 42 and a printed circuit board (PCB) or circuitry at one end. Similarly, the connector 17 may include conductors connected to the optical transceiver 42 and a printed circuit board or circuitry in the sensor 12. The end of the cable 20 may include a releasable connector that is configured to contain the optical transceiver 42 and PCB. The releasable connector may be configured to mechanically engage a cooperating connector on the sensor 12. Moreover, FIG. 1 shows that in the case where the charging circuit and sense loop are separate and electrically isolated from another, a cable 44 may be used to electrically connect the contacts 40 and the input power source 38 along with any other data connections.
[0028] The optical transceivers 42 may be used to define a sense loop and detect various security events, such as when the cable 20 is cut or removed from the sensor 12 and/or the connector 17 is removed from item of merchandise 14 in an unauthorized manner. It is understood that various types of sensing techniques may be used for detecting when the cable 20 is attached or detached from the sensor 12 and/or item of merchandise 14, as well as when the connector 17 is removed from the item of merchandise. For example, the optical transceiver 42 at the end of the cable 20 may communicate an optical signal to the optical transceiver in the sensor 12 where the sensor can determine that the item of merchandise 14 and the cable 20 are secure. The optical transceiver 42 in the sensor 12 may then communicate an optical signal to the optical transceiver at the end of the cable 20 to indicate that the item of merchandise 14 is secure. The optical signals may be coded in a particular manner that is recognizable and/or expected for determining whether a security event has occurred. Should the optical signals be interrupted or an unexpected optical signal is received, the base 18 or other alarm unit may detect the interruption and generate an alarm signal. For example, the base 18 or other alarm unit may be configured to generate an audible and/or a visible alarm. For example, FIG. 1 shows that the base 18 may include an alarm 48, such as a piezoelectric device, for generating an audible alarm. The sensor 12 may likewise or alternatively include an alarm 48 for generating an audible and/or a visible alarm. The base 18 may be configured to be armed and/or disarmed via a key, such as a wireless key. For instance, FIG. 1 shows that the base 18 may include a port 45 for facilitating communication with a key. In some embodiments, the optical transceiver(s) is similar to that disclosed in U.S. Provisional Application No. 62/167,382, entitled Merchandise Security System with Optical Communication and filed on May 28, 2015, and U.S. Application No. 15/163,846, entitled Merchandise Security System with Optical Communication and filed on May 25, 2016, the entire contents of which are incorporated herein by reference.
[0029] FIGS. 2-7 illustrate embodiments of a recoiler 22. The recoiler 22 generally includes a spool 52 or rotatable member that is configured to rotate within the base 18. The base 18 defines an opening 56 configured to receive the cable 20 so that the cable can be extended and retracted relative to the base as the cable is unwound from and wound onto the spool 52. The cable 20 may be wound about the spool 52 along an axis "L", which may be perpendicular or about perpendicular (e.g., 85-90 degrees) to the axis of the cable 20. As shown in FIG. 7, the outer surface of the spool 52 may include a helical recess 55 that extends along at least a portion of the length of the spool. The helical recess 55 may be sized and configured to receive a portion of the cable 20 as it is wound about the spool 52. The helical recess 55 may define a plurality of windings about the spool 52. As the spool 52 is rotated via tension being applied on the cable 20, the spool is able to rotate about a spindle 58 or other support member. A spring may be used to urge the cable 20 back into the housing 54 as tension is removed from the cable. In some examples, the helix angle of the helical recess is between 0 and about 20 degrees (+/- 1 degree), between 0 and about 10 degrees (+/- 1 degree), or between 0 and about 5 degrees (+/- 1 degree). Moreover, in some embodiments, the pitch of the helical recess 55 may be between 0 and about 5 mm (+/- 1 mm), between 0 and about 10 mm (+/- 1 mm), or between 0 and about 15 mm (+/- 1 mm). In some cases, the spool 52 may be similar to that disclosed in U.S. Provisional Application No. 62/189,274, entitled Winch Recoiler for a Merchandise Security Device and filed on July 7, 2015, the entire contents of which are incorporated herein by reference.
[0030] In some cases, at least one winding of cable 20 is configured to be wound about the spool 52, and a plurality of windings may be defined about the spool as the cable is wound on the spool. In one example, the length of the spool 52 may be about the same as the outer diameter of the spool, or the length of the spool may be longer than the outer diameter of the spool. The cable 20 may be configured to wrap about the helical recess 55 from one end of the spool 52 to the other end of the spool. In one embodiment, the helical recess 55 may allow for a single row of cable 20 to be wound about the spool 52 in a predetermined helical direction. Once the cable 20 has been wound about the helical recess 55 in one helical direction as the cable is withdrawn into the base 18, the cable is configured to wind about the spool and the first layer of cable in a second helical direction to form a second layer of cable. Thus, the helical recess 55 may facilitate a first row of cable 20 being wrapped about the spool 52 in one direction, and the cable 20 may be biased towards a direction opposite to the first helical direction such that the cable forms a second layer of cable. Due to the helical recess 55 urging the cable 20 in a first helical direction, the cable may be biased to wind in an opposite direction once the cable has been wound to the end of the helical recess. Furthermore, FIG. 6 shows that the second layer of cable 20 may have a length that is about half (e.g., +/- 5 mm) of the first layer of cable. In this way, the second layer of cable may end at about the midpoint (e.g., +/- 5 mm) of the spool 52 thereby allowing the end of the cable to align with the opening 56 of the base 18. As such, the helical recess 55 may allow for more compact and orderly cable management within the base 18.
[0031] The recoiler 22 may also include a spring 64 in some embodiments. For example, the spring 64 may be secured to one end of the spool 52. In one embodiment, the spring 64 is a variable -force or variable -torque spring, a constant-force or constant-torque spring, or a power spring. When tension on the cable 20 is removed, the spring force of the spring 64 causes the spool 52 to rotate in an opposite direction thereby returning the cable 20 onto the spool.
[0032] As discussed above, the cable 20 may include one or more electrical conductors and the base 18 may facilitate power transfer to the sensor 12. In order to facilitate an electrical connection with the cable 18, such as for transmitting and receiving power, security, and/or data signals, the recoiler 22 may include a slip ring 72. The slip ring 72 may be electrically connected to the cable 20 and a printed circuit board 74, such as with one or more electrical wires. The slip ring 72 may be configured to rotate with the spool 52 in some cases. And FIGS. 4 and 7 show that in some embodiments, the slip ring 72 may be mounted at an end of the spool 52 opposite the spring 64.
[0033] In another embodiment, a locking feature may be provided for locking the sensor 12 to the base 18. In this regard and with reference to FIG. 5, a lock mechanism 80 may be configured to lock the sensor 12 to the base 18 when the sensor is seated on the base thereby prevent the spool 52 from rotating and, therefore, the cable 20 from being retracted relative to the base. Such a lock mechanism 80 may be useful for retailers who wish to secure the sensor 12 and item of merchandise 14 to the base 18, such as after hours, since the cable 20 will be inaccessible due to the inability to lift the sensor from the base. In the illustrated embodiment, the lock mechanism 80 includes a locking member 82 that is configured to rotate between locked and unlocked positions. In this instance, the locking member 82 may be a proprietary fastener. In another embodiment, the lock mechanism 80 may be configured to engage the spool 52 to prevent rotation thereof.
[0034] Embodiments of the present invention may provide several advantages. For example, the recoiler allows greater flexibility in installing the recoiler since the recoiler may be disposed entirely within the base. In addition, the size of the base may be more flexible given that the length of the recoiler may be reduced where the cable is configured wrap about itself in an orderly manner. Moreover, the configuration of the spool and helical recess may provide for a better user experience given that the pull force on the cable may be more constant and less than conventional recoilers.
[0035] According to another embodiment, the security system 10 includes one or more tracks 60 configured to operably engage one or more security devices 11. In some cases, each track 60 is configured to engage one or more security devices 11, such as for communication therewith. For example, each track 60 may be configured to communicate power, security, and/or data signals to and from the base 18, sensor 12, and/or item of merchandise 14. In some cases, the track 60 may facilitate power transfer to the security devices 11 and items of merchandise 14. In one embodiment, each track 60 comprises a longitudinal slot, although other possible configurations are possible, and is configured to engage a base 18 in a display position. For instance, the base 18 may have one or more engagement features configured to releasably engage the track 60. When in releasable engagement, the base 18 may be electrically connected to the track 60. Similarly, the cable 20 could alternatively or additionally be configured to engage the track 60 for establishing an electrical connection. The track 60 may be disposed in a corresponding slot or opening defined in a display surface 25, although the track may be coupled to the display surface in any desired manner. In this way, electrical cables connecting the security devices 11 to a power source or other devices may be eliminated, and no tools or fasteners are required in order to secure a security device to a display surface. The tracks 60 may be configured to be connected to any number of additional tracks, such as via snap-fit engagement, and may be laid, bent, or otherwise configured into various layouts.
[0036] In one embodiment, a central controller 70 may be configured to communicate with a plurality of security devices 11. In some cases, the central controller 70 may be configured to transfer and/or receive various electrical, security, and/or data signals from the security devices 11 via the tracks 60. The tracks 60 may be formed of a conductive material for transferring various electrical signals, and the security device 11 may include one or more corresponding electrical contacts configured to mate with and connect to a track (e.g., four electrical contacts for power and data communication). In the instance where the security device 11 receives power via a track 60, the security device may include a regulator or suitable electronics for providing the appropriate power to the security device and the item of merchandise 14. Each security device 11 may be configured to be automatically armed when engaged with a track 60, and in some embodiments, one or more ports 45 may be employed for arming and/or disarming security devices and/or the central controller 70. For example, one port 45 may be employed to disarm a plurality of security devices 11. In some bases, the port 45 may be configured to communicate with a key for arming and/or disarming the central controller 70 and/or security devices 11. For instance, the key may be a wireless key having a unique code that is configured to control the central controller 70 and/or security devices 11 when the unique codes match one another.
[0037] In one example, the track 60 may be configured to define a sense loop therethrough and with each of the security devices 11 engaged therewith. In some embodiments, the central controller 70 may be part of the sense loop and configured to monitor the status of one or more security devices 11. For example, where a security device 11 is alarming, the central controller 70 may be configured to determine which security device has alarmed and take various remedial actions, such as generating an audible and/or a visible alarm. An alarming event could occur due to the removal of a security device 11 or component thereof from a track 60 without first disarming the central controller 70. In some instances, the central controller 70 may be configured to communicate various commands to the security devices 11 , such as locking or unlocking the base 18 from the track 60, locking or unlocking the lock mechanism 80, alarming a security device, arming or disarming a security device, etc. Moreover, the central controller 70 may be configured to provide to or receive from various data regarding the security devices 11 and/or item of merchandise, such as the number of pick-ups of an item of merchandise, the power status of the item of merchandise, the power requirements of an item of merchandise, the location of the security device, a serial number and/or make/model of the item of merchandise, the time and/or location of a security or alarming event, etc. The central controller 70 may be configured to receive and store such information as well as communicate such information to a remote location or device. For example, the central controller 70 may be configured to communicate the information via a cloud network to a remote location for review and analysis by a retailer.
[0038] The foregoing has described one or more embodiments of merchandise security systems and methods for displaying and protecting an item of merchandise from theft. Those of ordinary skill in the art will understand and appreciate that numerous variations and modifications of the invention may be made without departing from the spirit and broad scope of the invention. Accordingly, all such variations and modifications are intended to be encompassed by the appended claims.