Patent Description:
Material handling vehicles are designed in a variety of configurations to perform a variety of tasks. The present disclosure is not intended to be limited to any specific material handling vehicle, and the systems described herein can also be provided with various other types of material handling vehicle configurations, including for example, pallet trucks (e.g., pallet jacks, "tuggers", and the like), orderpickers, SWING REACH® vehicles, and any other lift or pallet carrying vehicles. The various systems and methods disclosed herein are suitable for any of driver controlled, pedestrian controlled, remotely controlled, and autonomously controlled material handling vehicles.

Material handling vehicles can be used for carrying loads, such as pallets, loads with pallet-like bases, specialty carts, or racks. However, conventional material handling vehicles are unable to transfer power to these loads and the loads themselves are not configured to receive power from a material handling vehicle. Additionally, conventional material handling vehicles are unable to readily exchange information between the material handling vehicle and the load. It can be beneficial to be able to provide power to the load, for example, to be able to power accessories, carts, or other equipment the material handling vehicle is carrying and to transfer information between the load and the material handling vehicle. Some conventional methods of transferring power or information between a material handling vehicle and a load have been accomplished by the installation of cabled connections.

Systems or methods of the present disclosure provide power and/or communications for the loads carried by a material handling vehicle. As used herein, a load can be defined by any structure that is configured to be engaged with, carried by, moved, or transported by a material handling vehicle. For example, a load may include one or more fork pockets configured to receive forks of a material handling vehicle. The fork pockets can be separated by a center wall that can be engaged by a clamp on the material handling vehicle. The present disclosure describes a clamp assembly that can make the transfer of power and information available between a material handling vehicle and a load. Specifically, the clamp assembly can be incorporated into or between the forks on a material handling vehicle, such as a pallet clamp, for example. In some cases, loads can have a center wall within a base of the load (e.g., a center stringer of a pallet) and the clamp assembly can selectively engage with the center wall to secure the load to the material handling vehicle.

The clamp assembly can have electrical contacts in the form of electrical power and/or electronic communication contacts. For example, in instances when the clamp assembly is engaged with a load, the material handling vehicle may provide power and/or electronically communicate with the load. As used herein, an electrical contact can be defined as a structure at least partially formed from an electrically conductive material that can be configured to transmit electrical power or communication signals.

Referring to <FIG>, a material handling vehicle <NUM> may include a power source <NUM>, a first fork <NUM>, a second fork <NUM>, a controller <NUM>, and a clamp assembly <NUM>. The power source <NUM> can be a battery installed on the material handling vehicle <NUM>. The power provided by the power source <NUM> can be passed through a regulated supply device to limit power draw from the clamp assembly <NUM> to a predetermined limit (e.g., <NUM> Watts). The power provided by the power source can also pass through various safety and control devices, such as fuses, current limiters, power suppliers, and switches.

The clamp assembly <NUM> can be configured to selectively engage a load. For example, the clamp assembly <NUM> can be configured to clamp a center wall (e.g., a center stringer) of a load. The clamp assembly <NUM> may include a housing <NUM> with a first arm portion <NUM>, a second arm portion <NUM>, a first grip arm or assembly <NUM>, and a second grip arm or assembly <NUM>. The first grip assembly <NUM> may be moveably or pivotally engaged with the first arm portion <NUM>. The second grip assembly <NUM> may be pivotally engaged with the second arm portion <NUM>. The first grip assembly <NUM> and the second grip assembly <NUM> may be arranged opposite each other and face one another.

In some embodiments, the first and second grip assemblies <NUM>, <NUM> can be biased towards each other (e.g., via a spring). As best illustrated in <FIG>, when no outside forces are applied onto the first and second grip assemblies <NUM>, <NUM>, they are separated by a lateral distance, D1. The lateral distance D1 can define a gap between the first and second grip assemblies <NUM>, <NUM> that is less than a width of a structure (e.g., a center wall) that is configured to be inserted between the first and second grip assemblies <NUM>, <NUM>. When the structure is inserted between the first and second grip assemblies <NUM>, <NUM>, they can displace away from each other. In this displaced position, the first and second grip assemblies can be biased towards one another (e.g., via a spring) to ensure contact between the first and second grip assemblies <NUM>, <NUM> and the structure to secure and grip the structure. For example, during operation, the material handling vehicle <NUM> can be maneuvered into position in front of a load having fork pockets within a base of the load. The first and second forks <NUM>, <NUM> can then be inserted into fork pockets to bring the clamp assembly <NUM> into engagement with a center wall arranged between the fork pockets. Upon engagement with the center wall, the first and second grip assemblies <NUM>, <NUM> can be displaced away from each other to receive the center wall due to the contact between the center wall and the first and second grip assemblies <NUM>, <NUM>. The first and second grip assemblies <NUM>, <NUM> can then grip the center wall, thereby securing the load to the material handling vehicle <NUM>. In some embodiments, various other types of mechanical clamps can be used in place of the first and second grip assemblies. For example, a hydraulically driven metal plate could be used to engage the load and to transfer power and/or communications to the load.

The clamp assembly <NUM> can be configured to provide electrical communication between the power source <NUM> on the material handling vehicle <NUM> and a load received on the first and second forks <NUM>, <NUM>. The clamp assembly <NUM> can be in electrical communication with the power source <NUM>. The controller <NUM> may also be in electrical communication with the clamp assembly <NUM>. In some embodiments, the controller <NUM> may be configured to selectively articulate the clamp assembly <NUM>. For example, the controller <NUM> can be configured to selectively rotate the first and second grip assemblies <NUM>, <NUM> between a deployed position and a stowed position. In the stowed position, the first and second grip assemblies <NUM>, <NUM> can be received within the first and second arm portions <NUM>, <NUM> of the housing <NUM>, respectively.

In some embodiments, the first and second grip assemblies <NUM>, <NUM> can be manually actuated by an operator. For example, the material handling vehicle <NUM> can have a manually operated foot pedal that, when actuated by an operator, can be configured to selectively rotate the first and second grip assemblies <NUM>, <NUM> between the deployed position and the stowed position. In other embodiments, an electrical switch can be mounted within an operator compartment to selectively rotate the first and second grip assemblies <NUM>, <NUM> between the deployed position and the stowed position.

The clamp assembly <NUM> can include one or more electrical contacts. The electrical contacts can be configured to transfer power to a load on the material handling vehicle <NUM>. For example, one of the first grip assembly <NUM> or the second grip assembly <NUM> can include at least one power contact. Turning to <FIG>, a top view of the first grip assembly <NUM> is shown. The first grip assembly114 may include a first lobe or clamping arm <NUM>, a first mount <NUM>, and a first power contact <NUM>. The first mount <NUM> may be inserted into and supported by the first clamping arm <NUM>. The first mount <NUM> may be generally flush with the first clamping arm <NUM>. The first mount <NUM> may be constructed of an electrically insulating material (e.g., plastic, rubber, silicone, etc.).

The first power contact <NUM> can be configured to engage with corresponding contacts within a base of a load to transfer power from the power source <NUM> to the load. The first power contact <NUM> can be coupled to the first clamping arm <NUM> by the first mount <NUM> to electrically insulate the first power contact <NUM> from the first clamping arm <NUM>. The first power contact <NUM> may be inserted into and supported by the first mount <NUM>. In some embodiments, the first power contact <NUM> may be crescent-shaped, although other shapes are envisioned. The crescent or arcuate-shaped first power contact <NUM> can provide a wiping electrical contact. In the illustrated embodiment, the arc-shaped electrical contacts can enable the clamp assembly <NUM> to engage center walls of a loads having a variety of center wall thicknesses while maintaining electrical contact between the electrical contacts (e.g., first contact <NUM>) and a corresponding electrical contact within a base of a load. In some embodiments, the arc of the electrical contacts can share a center of rotation with the rotation of the first and second grip assemblies <NUM>, <NUM>. The first power contact <NUM> may be constructed of an electrically conductive material (e.g., metal or carbon). In some embodiments, power contacts can be over-molded into the mounts, including wire leads that may lead to or from the power contacts. The first power contact <NUM> may be in electrical communication with the power source <NUM> and the controller <NUM>. The controller <NUM> can be configured to selectively energize the first power contact <NUM> with power from the power source <NUM>.

With reference to <FIG>, a bottom view of the first grip assembly <NUM> is shown. The first grip assembly <NUM> may also include a second mount <NUM> and a second power contact <NUM> opposite the first mount <NUM> and first power contact <NUM>. In the illustrated embodiment, the bottom side of the first grip assembly <NUM> (<FIG>) can be substantially similar to the top side (<FIG>). Unless otherwise stated in the description below or illustrated in the figures, it is to be understood that the bottom of the first grip assembly <NUM> can be substantially similar, include similar structures, and perform similar functions as the top of the first grip assembly <NUM>. For example, the second power contact <NUM> can be configured to engage with corresponding contacts within a base of a load to transfer power from the power source <NUM> to a load. The second mount <NUM> may be inserted into and supported by the first clamping arm <NUM>. The second mount <NUM> may be generally flush with the first clamping arm <NUM>. The second mount <NUM> may be constructed of the electrically insulating material and be configured to electrically isolate the second power contact <NUM> from the first clamping arm <NUM>. The second power contact <NUM> may be inserted into and supported by the second mount <NUM>. In some embodiments, the second power contact <NUM> may be a mirror image of the first power contact <NUM> and thus crescent-shaped. It is anticipated that the second power contact <NUM> may be constructed of the electrically conductive material. The second power contact <NUM> may be in electrical communication with the power source <NUM> and the controller <NUM>. The controller <NUM> may selectively energize the second power contact <NUM>. In some examples, the controller <NUM> may energize the second power contact <NUM> based on an input from an operator. The controller <NUM> can be configured to selectively energize the second power contact <NUM>.

Turning to <FIG>, as seen in a side view, the electrical contacts can protrude from a surface of the clamping arms. In some embodiments, the electrical contacts can be arranged on opposing sides of the clamping arms. For example, in the illustrated embodiment, the first power contact <NUM> may be opposite the second power contact <NUM>. The first power contact <NUM> and the second power contact <NUM> may extend away from the first clamping arm <NUM>. In other words, the first power contact <NUM> and the second power contact <NUM> may project beyond or protrude from the first clamping arm <NUM>. In some embodiments, a switch can be included to allow an operator to selectively turn on/off the power to the first power contact <NUM> and the second power contact <NUM>.

The clamp assembly <NUM> can include one or more electrical contacts configured to transfer communication signals between a load on the material handling vehicle <NUM>. For example, one of the first grip assembly <NUM> or the second grip assembly <NUM> can include at least one signal contact. The signal contacts can be configured to engage with corresponding contacts within a base of a load to communicate information or signals to/from the material handling vehicle <NUM> to the load.

Referring now to <FIG>, a top view of the second grip assembly <NUM> is shown. The second grip assembly <NUM> may include a second lobe or clamping arm <NUM>, a third mount <NUM>, and a first signal contact <NUM>. The third mount <NUM> may be inserted into and supported by the second clamping arm <NUM>. The third mount <NUM> may be generally flush with the second clamping arm <NUM>. The third mount <NUM> may be constructed of the electrically insulating material and be configured to electrically isolate the first signal contact <NUM> from the second clamping arm <NUM>.

The first signal contact <NUM> may be inserted into and supported by the third mount <NUM>. In some embodiments, the first signal contact <NUM> may be crescent-shaped, although other shapes are envisioned. The crescent or arcuate-shaped first signal contact <NUM> can provide a wiping electrical contact. The first signal contact <NUM> may be in electrical communication with the controller <NUM>. In some embodiments, signal contacts can be over-molded into the mounts, including wire leads that may lead to or from the signal contacts.

With reference to <FIG>, a bottom view of the second grip assembly <NUM> is shown. In the illustrated embodiment, the bottom side of the second grip assembly <NUM> (<FIG>) can be substantially similar to the top side (<FIG>). Unless otherwise stated in the description below or illustrated in the figures, it is to be understood that the bottom of the second grip assembly <NUM> can be substantially similar, include similar structures, and perform similar functions as the top of the second grip assembly <NUM>. For example, the second grip assembly <NUM> may include a fourth mount <NUM> and a second signal contact <NUM>. The fourth mount <NUM> may be inserted into and supported by the second clamping arm <NUM>. The fourth mount <NUM> may be generally flush with the second clamping arm <NUM>. The fourth mount <NUM> may be constructed of the electrically insulating material and be configured to electrically isolate the second signal contact <NUM> from the second clamping arm <NUM>. The second signal contact <NUM> may be inserted into and supported by the fourth mount <NUM>. In some embodiments, the second signal contact <NUM> may be a mirror image of the first signal contact <NUM> and thus crescent-shaped. The second signal contact <NUM> may be in electrical communication with the controller <NUM>.

Looking at <FIG>, as seen in a side view, the first signal contact <NUM> may be opposite the second signal contact <NUM>. The first signal contact <NUM> and the second signal contact <NUM> may extend away or protrude from the second clamping arm <NUM>. In other words, the first signal contact <NUM> and the second signal contact <NUM> may project beyond the second clamping arm <NUM>.

With reference to <FIG>, the first signal contact <NUM> may include a plurality of signal contacts 136A, 136B, 136C, and a plurality of insulators <NUM>. It is anticipated that the plurality of insulators <NUM> are constructed of the electrically insulating material. It is also anticipated that the plurality of signal contacts 136A-136C may be constructed of the electrically conductive material. The individual insulators of the plurality of insulators <NUM> may be alternatingly layered between individual tracks of the plurality of signal contacts 136A-136C. Thus, the plurality of insulators <NUM> may electrically isolate individual tracks of the plurality of signal contacts 136A-125C from one another. Looking back to <FIG> and <FIG>, it should be appreciated that the first signal contact <NUM> may be a mirror image of the second signal contact <NUM>. Thus, the second signal contact <NUM> may also include a plurality of signal contacts and a plurality of insulators (140A-140C and <NUM>, see <FIG>).

As described above, in some embodiments, the clamp assembly <NUM> can include a plurality of signal contacts. The plurality of signal contacts can provide CAN signal communication capabilities. Typically CAN communication is two way communication based on the CAN standard which uses three signal contacts (e.g., CAN High, CAN Low, Ground-Return) and a fourth signal contact (e.g., Engage). The "engage" signal contact can be used as a signal to indicate that a clamp assembly has engaged a load.

In some embodiments, the controller <NUM> can be configured to selectively energize one or more of the power contacts or signal contacts on the first grip assembly <NUM> or the second grip assembly <NUM> based on system checks of the material handling vehicle <NUM>. In some embodiments, the material handling vehicle <NUM> may be equipped with one or more sensors and the controller <NUM> may be in electrical communication with the sensors to perform system checks on the material handling vehicle <NUM>.

In some embodiments, the controller <NUM> can be configured to perform an engagement system check that can include determining whether a load is correctly engaged by the forks <NUM>, <NUM> or the clamp assembly <NUM>. In such embodiments, the controller <NUM> may apply power and make one or more attempts to communicate with the load via the power contacts or signal contacts. The power applied may be limited by a fuse or circuit breaker on the material handling vehicle <NUM>. If the controller <NUM> does not receive expected responses (e.g., CAN bus messages) to the communication attempt, the system check may indicate that the load is not correctly engaged by the clamp assembly <NUM>.

In some embodiments, a disengagement system check may include determining whether a load is correctly disengaged by the clamp assembly <NUM>. In such embodiments, the controller <NUM> may continue to communicate with a load after the material handling vehicle <NUM> has attempted to disengage from the load. If communication persists (e.g., via the power or signal contacts), the system check may indicate that the load is not correctly disengaged. It should be appreciated that the controller <NUM> may alert an operator that the load remains engaged before the material handling vehicle <NUM> drives away.

In some embodiments, a status system check may include interrogating a load for status information (e.g., via the signal contacts). In such embodiments, the controller <NUM> may query the load for a load identity, failure codes for the machinery on the load, and the load's status. Additionally, based on the status information, the controller <NUM> may instruct the load to perform one or more operations (e.g., rotate a bin or actuate a carousel).

In some embodiments, a loading system check may include interrogating a load for item loading information. In such embodiments, the controller <NUM> may query sensors (e.g., bar code scanners, 2D bar codes processors, RFID chips, location detectors, etc.) mounted on the load to monitor items loaded or removed from the load. The controller <NUM> may alert the operator to any item count defects when the load is engaged.

In some embodiments, a power draw system check may include monitoring, with the controller <NUM>, electrical power drawn by a load. It should be understood that the above-described system checks are non-limiting examples and that the controller <NUM> may perform any type of system check.

It is to be understood by one of ordinary skill in the art that the clamp assembly described herein, or the power and signal contacts provided thereon, could be retrofit into trucks with pre-existing pallet clamps, or the clamp assembly described herein could be a direct replacement for the pallet clamp on pallet clamp equipped material handling vehicles.

Turning to <FIG>, one embodiment of a load assembly with a base is shown. The load assembly <NUM> may include a base <NUM> and a load <NUM>. The base <NUM> may support the load <NUM>. In some embodiments, the base <NUM> can be a pallet, or be similar in shape and structure to a pallet. The base <NUM> includes a center wall <NUM> (e.g., a center stringer of a pallet), a top plank or wall <NUM>, and a bottom plank or wall <NUM> opposite the top wall <NUM>. A spacing formed between the top wall <NUM> and the bottom wall <NUM> is divided by the center wall <NUM> to form fork pockets <NUM>. The fork pockets <NUM> are configured to receive the first and second forks <NUM>, <NUM> (see <FIG>) of the material handling vehicle <NUM>.

The base <NUM> includes electrical contacts configured to engage with the electrical contacts on the clamp assembly <NUM> to transfer power or communication signals between the power source <NUM> and the controller <NUM> to the load <NUM>. In some embodiments, the base <NUM> can include a plurality of electrical contacts that correspond and engage with the plurality of electrical contacts on the clamp assembly <NUM>. The electrical contacts can protrude from a surface of the base <NUM> into a cavity formed by the fork pockets <NUM>. In the illustrated embodiment, the base <NUM> can include one or more electrical contacts configured to transfer power to the load <NUM>. For example, one of the top wall <NUM> or the bottom wall <NUM> can include at least one power contact configured to engage with one of the first or second power contacts <NUM>, <NUM> of the clamp assembly <NUM>. The base <NUM> can also include one or more electrical contacts configured to transfer communication signals between the controller <NUM> and the load <NUM>. For example, one of the top wall <NUM> or the bottom wall <NUM> can include at least one signal contact configured to engage with one of the first or second signal contacts <NUM>, <NUM> of the clamp assembly <NUM>. In the illustrated embodiment, the base <NUM> can include a first power pin <NUM>, a second power pin <NUM>, first signal pins <NUM>, and second signal pins <NUM>. In the illustrated embodiment, the center wall <NUM> separates first power pin <NUM> and the first signal pins <NUM> from the second power pin <NUM> and the second signal pins <NUM>. Said another way, the first power pin <NUM> and the first signal pins <NUM> are arranged within one of the fork pockets <NUM> and the second power pin <NUM> and the second signal pins <NUM> are arranged in the other fork pocket <NUM>.

The center wall <NUM> may be connected to the top wall <NUM> and the bottom wall <NUM> and be configured to be received within and engaged by the clamp assembly <NUM> (see <FIG>). The first power pin <NUM> and the first signal pins <NUM> may extend from the top wall <NUM> toward the bottom wall <NUM>. The first power pin <NUM> and/or the first signal pins <NUM> may be slidably engaged with the top wall <NUM>. In some embodiments, the first power pin <NUM> and/or the first signal pins <NUM> may be spring-loaded relative to the top wall <NUM> such that the first power pin <NUM> and the first signal pins <NUM> are biased away from the top wall <NUM>. The second power pin <NUM> and the second signal pins <NUM> may extend from the bottom wall <NUM> toward the top wall <NUM>. The second power pin <NUM> and the second signal pins <NUM> may be slidably engaged with the bottom wall <NUM>. In some embodiments, the second power pin <NUM> and the second signal pins <NUM> may be spring-loaded relative to the bottom wall <NUM> such that the second power pin <NUM> and the second signal pins <NUM> are biased away from the bottom wall <NUM>. The center wall <NUM> may be arranged between the first power pin <NUM> and the first signal pins <NUM>. The center wall <NUM> may be arranged between the second power pin <NUM> and the second signal pins <NUM>.

Looking further at <FIG>, the first power pin <NUM>, the second power pin <NUM>, the first signal pins <NUM>, and the second signal pins <NUM> may be in electrical communication with the load <NUM>. The first power pin <NUM> and the second power pin <NUM> may be sized and configured to provide electrical energy to the base <NUM> and/or the load <NUM> (e.g., to support a refrigeration compressor, run a fan, illuminate a lamp, actuators, carousels, lights, etc.), from the power source <NUM> on the material handling vehicle <NUM> when the clamp assembly <NUM> is engaged with the center wall <NUM>.

With reference to <FIG>, the clamp assembly <NUM> is illustrated as being engaged with the base <NUM>. The first signal pins <NUM> and the second signal pins <NUM> may be sized and configured to transmit information between the base <NUM> and/or the load <NUM> and the controller <NUM> on the material handling vehicle <NUM> when the clamp assembly <NUM> is engaged with the center wall <NUM>. The information may include, for example, an internal temperature of the load <NUM>, inertial movement data of base <NUM> and/or the load <NUM>, location data of base <NUM> and/or the load <NUM>, a time since the load <NUM> was opened, etc. The first signal pins <NUM> and the second signal pins <NUM> may be sized and spaced relative to one another to correspondingly contact one or more signal contacts among the plurality of signal contacts 140A-140C on the clamp assembly <NUM>.

Referring again to <FIG>, in operation, the first arm portion <NUM> and the second arm portion <NUM> of the clamp assembly <NUM> may be inserted between the top wall <NUM> and the bottom wall <NUM> such that the center wall <NUM> may be received between the first grip assembly <NUM> and the second grip assembly <NUM>. The controller <NUM> may instruct the first grip assembly <NUM> to pivot outwardly relative to the first arm portion <NUM> and the second grip assembly <NUM> to pivot outwardly relative to the second arm portion <NUM> to actuate the first and second grip assemblies <NUM>, <NUM> from a stowed position to a deployed or clamped position. In other words, the controller <NUM> may selectively pivot the first grip assembly <NUM> relative to the first arm portion <NUM> and the second grip assembly <NUM> relative to the second arm portion <NUM> to grip and secure the center wall <NUM>. Thus, the center wall <NUM> may be compressed and gripped firmly between the first clamping arm <NUM> and the second clamping arm <NUM>, thereby securing the base <NUM>, and thus the load, <NUM>, to the material handling vehicle <NUM>. The material handling vehicle <NUM> and the base <NUM> may be collectively referred to as a material handling system <NUM>.

In instances when the first grip assembly <NUM> pivots outwardly relative to the first arm portion <NUM>, the first power contact <NUM> may contact and slidably sweep against the first power pin <NUM>. Thus, the first power contact <NUM> may depress the first power pin <NUM> into the top wall <NUM> and the first power contact <NUM> may be placed in electrical communication with the first power pin <NUM>. In instances when the first grip assembly <NUM> may pivot outwardly relative to the first arm portion <NUM>, the second power contact <NUM> may contact and slidably sweep against second power pin <NUM>. Thus, the second power contact <NUM> may depress the second power pin <NUM> into the bottom wall <NUM> and the second power contact <NUM> may be placed in electrical communication with the second power pin <NUM>.

In instances when the second grip assembly <NUM> pivots outwardly relative to the second arm portion <NUM>, the first signal contact <NUM> may contact and slidably sweep against the first signal pins <NUM>. Thus, the first signal contact <NUM> may depress the first signal pins <NUM> into the top wall <NUM> and the first signal contact <NUM> may be placed in electrical communication with the first signal pins <NUM>. In instances when the second grip assembly <NUM> pivots outwardly relative to the second arm portion <NUM>, the second signal contact <NUM> may contact and slidably sweep against the second signal pins <NUM>. Thus, the second signal contact <NUM> may depress the second signal pins <NUM> into the bottom wall <NUM> and the second signal contact <NUM> may be placed in electrical communication with the second signal pins <NUM>. Thus, the controller <NUM> may electronically send and receive information to and from the base <NUM> and/or the load <NUM> via the first signal contact <NUM> and/or the second signal contact <NUM>.

Turning to <FIG>, a second embodiment of a load assembly with a pallet or pallet-like base is shown. The load assembly <NUM> may be an alternative arrangement of the load assembly <NUM> of <FIG> and <FIG>. In general, the second embodiment of the load assembly <NUM> can be substantially similar to the load assembly <NUM> of <FIG> and <FIG>, with the exception that the power and signal contacts are located along the center wall <NUM> as opposed to the top and bottom walls <NUM>, <NUM>. The load assembly <NUM> may include the base <NUM> and the load <NUM>. The base <NUM> may support the load <NUM>. Additionally, the base <NUM> may include the center wall <NUM>, the top wall <NUM>, the bottom wall <NUM>, the first power pin <NUM>, the second power pin <NUM>, the first signal pins <NUM>, and the second signal pins <NUM>.

The center wall <NUM> may be connected between the top wall <NUM> and the bottom wall <NUM>. In contrast with the load assembly of <FIG> and <FIG>, any of the first power pin <NUM>, the second power pin <NUM>, the first signal pins <NUM>, and/or the second signal pins <NUM> may extend outwardly from the center wall <NUM> between the top wall <NUM> and the bottom wall <NUM>, perpendicular to the center wall <NUM>. Any of the first power pin <NUM>, the second power pin <NUM>, the first signal pins <NUM>, and the second signal pins <NUM> may be slidably engaged with and spring-loaded relative to the center wall <NUM>. The first power pin <NUM> and the second power pin <NUM> may extend oppositely from one another. The first signal pins <NUM> and the second signal pins <NUM> may extend oppositely from one another. The center wall <NUM> may be between the first power pin <NUM> and the second power pin <NUM>. The center wall <NUM> may be between the first signal pins <NUM> and the second signal pins <NUM>.

Looking further at <FIG>, the first power pin <NUM>, the second power pin <NUM>, the first signal pins <NUM>, and the second signal pins <NUM> may be in electrical communication with the load <NUM>. The first power pin <NUM> and the second power pin <NUM> may be sized and configured to provide electrical energy to the base <NUM> and/or the load <NUM> (e.g., to support a refrigeration compressor, run a fan, illuminate a lamp, etc.), from the power source <NUM>.

In general, the clamp assembly <NUM> can be altered or arranged in an alternative embodiment in order for the power and signal pins to engage with the load assembly <NUM> of <FIG> and <FIG>. For example, referring back to <FIG>, as seen in a side view, the first clamping arm <NUM> may include a first side <NUM> facing towards the second clamping arm <NUM>. Additionally or alternatively, the first clamping arm <NUM> may include a third power contact and a third signal contact mounted along the first side <NUM> (not shown). The third signal contact may include a plurality of signal contacts and a plurality of insulators. It is anticipated that the third power contact and the third signal contact may be constructed of the electrically conductive material and mounted in the electrically insulating material. The third power contact may be in electrical communication with the power source <NUM> and the controller <NUM>. The controller <NUM> may selectively energize the third power contact. The third signal contact may be in electrical communication with the controller <NUM>.

The third power contact and the third signal contact may extend laterally away from the first clamping arm <NUM>. In other words, the third power contact and the third signal contact may project beyond the first side <NUM>. A switch can be included to allow the operator to turn on the power to third power contact and the third signal contact. The first clamping arm <NUM> may operate with the load assembly <NUM> of <FIG> via the third power contact and the third signal contact. In operation, the third power contact may contact and compress the first power pin <NUM> and the third signal contact may contact and compress the first signal pins <NUM>.

Referring back to <FIG>, as seen in a side view, the second clamping arm <NUM> may include a second side <NUM> facing towards the first clamping arm <NUM> and opposite the first side <NUM>. Additionally or alternatively, the second clamping arm <NUM> may include a fourth power contact and a fourth signal contact mounted along the second side <NUM> (not shown). The fourth signal contact may include a plurality of tracks and a plurality of insulators. It is anticipated that the fourth power contact and the fourth signal contact may be constructed of the electrically conductive material and mounted in the electrically insulating material. The fourth power contact may be in electrical communication with the power source <NUM> and the controller <NUM>. The controller <NUM> may selectively energize the fourth power contact. The fourth signal contact may be in electrical communication with the controller <NUM>.

The fourth power contact and the fourth signal contact may extend laterally away from the second clamping arm <NUM>. In other words, the fourth power contact and the fourth signal contact may project beyond the second side <NUM>. The switch may allow the operator to turn on the power to fourth power contact and the fourth signal contact. The second clamping arm <NUM> may operate with the load assembly <NUM> of <FIG> via the fourth power contact and the fourth signal contact. For example, in operation, the fourth power contact may contact and compress the second power pin <NUM>. Additionally, in operation, the fourth signal contact may contact and compress the second signal pins <NUM>.

As previously described herein, the clamp assembly <NUM> (see <FIG>) can enable a material handling vehicle to provide power and/or communication signals to a load <NUM> (see <FIG>) For example, the load <NUM> cab be a load-supporting container, a material sorting system, etc. The load can have a base configured to receive the power and/or communication signals from the material handling vehicle. As previously described herein, the load can be embodied in various ways. As will be described below, a material sorting system can be coupled to a base that can be engaged by a material handling vehicle.

In large storage warehouses storing objects, such as consumer goods to be purchased, the goods may be retrieved from shelving racks, and the like, and sorted prior to shipping out to a purchasing consumer. To retrieve and organize these goods, conventional "put walls" and order-picking carts are typically used. However, these conventional "put walls" are stationary and order-picking carts are manually pushed around by the worker. Further, conventional order-picking typically consists of a worker placing items onto a pallet or into a cart.

The present invention provides a material sorting system that can be configured to travel or be moved within a warehouse to a location of a stored good. The material sorting system can be configured to operatively attach to a material handling vehicle. The operative attachment can include an electrical attachment, such as the clamp assembly previously described herein (See <FIG>), with electrical power and/or electronic communication contacts described above.

In some embodiments, the material sorting system can be driven with an internal drive system and can be configured to be driven autonomously or by an operator. In some embodiments, the material sorting system can indicate a predetermined location within the material sorting system for the good to be stored. According to the invention, the material sorting system is be a carousel with storage racks or containers movable along a track of the carousel. In some embodiments, the track can be vertically oriented relative to the ground. In other embodiments, other track orientations are contemplated, such as horizontal or rotary tracks. For example, certain features and combinations of features that are presented with respect to particular embodiments in the discussion above can be utilized in other embodiments and in other combinations, as appropriate. As will be described herein, order-picking can be improved when using the material sorting system described herein. For example, the systems and methods described herein can increase the put density. This can allow an operator or worker to fulfill more orders. Ergonomics can also be improved, for example, as a carousel system can position the appropriate tote or box in an area, height, or position that is convenient for the worker.

Referring to <FIG>, a material sorting system <NUM> is coupled to the base <NUM> (see <FIG>). The material sorting system <NUM> includes a carousel assembly <NUM>.

In the illustrated embodiment, the base <NUM> can include a drive system <NUM>. The drive system <NUM> can operate wheels <NUM> to move the base <NUM> and carousel assembly <NUM> in a forward and a backward direction along the Z-axis as provided on <FIG>. The drive system <NUM> can be configured to rotate the wheels <NUM> in opposite directions to rotate the base <NUM> about the Y-axis, for example, similar to tank-steering. The drive system <NUM> can be powered by an onboard power supply (e.g., one or more batteries). Caster wheels <NUM> can be attached to the base <NUM>, shown here at corners <NUM> of the rectangular-shaped base <NUM>, and can provide additional support and stability for the material sorting system <NUM> when the base <NUM> is not being carried by a material handling vehicle.

As previously described herein, the base <NUM> can be sized and shaped similarly to a pallet and can be configured to interface with a material handling vehicle. The base <NUM> has a center wall <NUM> and openings or fork pockets <NUM> to each side of the center wall <NUM>. As best illustrated in <FIG>, the material handling vehicle <NUM> (e.g., a high-lift forklift) can include a pair of forks (not shown, see <FIG>) configured to be received within the fork pockets <NUM> of the base <NUM>. The fork pockets <NUM> in the base <NUM> can enable a material handling vehicle to carry and move the material sorting system <NUM>. As previously noted herein, the configuration of the material handling vehicle engaged with the base <NUM> can be referred to as a material handling system <NUM>. In some embodiments, the base <NUM> can take other shapes and configurations. For example, the base <NUM> can be substantially circular. In an autonomous embodiment, a circular base may be advantageous and provide better maneuverability.

The carousel assembly <NUM> can be a vertical carousel and include one or more storage units configured to be movable relative to the base <NUM> to receive goods picked by an order-picker. In the illustrated embodiment, the carousel assembly includes a plurality of storage units <NUM> movable along tracks <NUM> on a set of opposing stalks <NUM> that are coupled to the base <NUM>. In the illustrated embodiment, the carousel assembly <NUM> can include an actuation mechanism <NUM> operatively coupled to the tracks <NUM> and configured to move the plurality of storage units <NUM> along the tracks <NUM>. In some embodiments, the actuation mechanism <NUM> can include an electric motor configured to drive a belt, chain, or gear drive system (not shown) configured to move the plurality of storage units <NUM> along the tracks <NUM>. In other embodiments, the actuation mechanism 327may include a linear actuator or any other mechanical, electrical, or hydraulic mechanism that is capable of moving the plurality of storage units <NUM>. The stalks <NUM> can be coupled to and extend upward from the base <NUM>. In the illustrated embodiment, the stalks <NUM> can be arranged substantially over the wheels <NUM> and extend vertically along the Y-axis. The location of the stalks <NUM> over the wheels <NUM> can distribute the weight of the carousel assembly <NUM> more directly onto the wheels <NUM> in a direction substantially perpendicular to the ground (e.g., the direction of the y-axis). This arrangement can enhance stability and control of the material sorting system <NUM>.

It is contemplated that although the tracks <NUM> can provide a continuous path for the storage units <NUM> to traverse along the stalks <NUM>. In some embodiments, there can be provided distinct stop locations along the continuous path. The stalks <NUM> can further include indicators <NUM> at the distinct stop locations along the stalks <NUM>. The indicators <NUM> can be lights or other identifying indicia and can provide information to an operator <NUM>. In some embodiments, the indicators <NUM> can be multi-color lights. For example, during operation, the indicators <NUM> can be normally illuminated red lights. In order to indicate placement of a good into one of the plurality of storage units <NUM> at one of the distinct stop locations, one of the indicators <NUM> corresponding to the respective storage unit <NUM> can be illuminated green to alert the operator to the respective storage bin <NUM> to place the picked goods. Other embodiments using indicators along the stalks <NUM> to designate placement of a good within a specific storage unit <NUM> are also within the purview of this disclosure. In some embodiments, each of the plurality of storage bins <NUM> can include an indicator to designate the placement of a good within a specific storage unit <NUM>. In some embodiments, each of the plurality of storage bins <NUM> can include a smart barcode tag. The smart barcode tag can integrate with a controller or warehouse management system to designate the placement of a good within a specific storage unit <NUM>.

<FIG> illustrates an example movement of the storage units <NUM> along the stalks <NUM> (as shown by arrows <NUM>). The storage units <NUM> can be configured to be accessible along the entire length of the tracks <NUM>. As shown in <FIG>, the actuation mechanism <NUM> can be configured to move the storage units <NUM> nearest the operator <NUM> in an upward direction relative to the base <NUM>. It should understood that the direction of motion can be reversed to move the storage units <NUM> nearest the operator <NUM> in a downward direction relative to the base <NUM> as well (e.g., the motor of an actuation mechanism can be reversed). The movement of the storage units <NUM> can be automated (i.e., programmed to locate a specific storage unit <NUM> at a specific distinct stop location depending on an input, remote or local), mechanically driven and controlled by an operator using a switch or control panel, or manually moved around the tracks <NUM> by an operator. As described below, the carousel assembly <NUM> can be powered by the power supply <NUM> on the material handling vehicle <NUM> via electrical contacts on a clamp assembly, which can also provide power to the drive system <NUM> and/or the actuation mechanism <NUM>. In some embodiments, the carousel assembly <NUM> can include a separate power supply (not shown).

Referring back to <FIG>, the base <NUM> can include one or more electrical contacts configured to receive power or communication signals from corresponding electrical contacts on a clamp assembly <NUM>. As previously described herein, the clamp assembly <NUM> can be configured to deliver power and communication signals from the material handling vehicle <NUM>, such as the material handling vehicle illustrated in <FIG>, to the material sorting system <NUM> illustrated in <FIG> via the one or more electrical contacts within the base <NUM>. The clamp assembly <NUM> can be positioned between a pair of forks on the material handling vehicle and can include a first grip arm or assembly <NUM>, and a second grip arm or assembly <NUM>. The first and second grip assemblies <NUM>, <NUM> can include at least one power contact (e.g., first and second power contacts <NUM>, <NUM>). In some embodiments, the first and second grip assemblies <NUM>, <NUM> can include at least one signal contact (e.g., first and second signal contacts <NUM>, <NUM>). Additional power and signal contacts or alternative arrangements of the power and signal contacts are contemplated (see, e.g., <FIG>).

As previously described herein, the first and second grip assemblies <NUM>, <NUM> can be configured to selectively and removably engage both sides of the base <NUM> via the center wall <NUM> when the pair of forks are received within the fork pockets <NUM>. At the location of engagement, electrical contacts can be provided in the base <NUM> within either or both of the fork pockets <NUM> and can be configured to electrically contact with either or both of the power and signal contacts (e.g., first and second power contacts <NUM>, <NUM> and/or first and second signal contacts <NUM>, <NUM>). For example, the base <NUM> can include a first power pin <NUM>, a second power pin <NUM>, first signal pins <NUM>, and second signal pins <NUM> within the fork pockets <NUM> and adjacent to the center wall <NUM>. When in electrical contact, electrical power and communications can be transferred between the material handling vehicle <NUM> and the material sorting system <NUM>.

The carousel assembly <NUM>, including the actuation mechanism <NUM> and the indicator lights <NUM>, can be in electrical communication with one or more of the first and second power pins <NUM>, <NUM> and first and second signal pins <NUM>, <NUM>. For example, the carousel assembly <NUM> can receive power from the first and second power pins <NUM>, <NUM> when power is provided from an external source. In operation, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the carousel assembly <NUM> can be powered by the power supply <NUM> on the material handling vehicle <NUM> via the first and second power pins <NUM>, <NUM>. The carousel assembly <NUM> can also receive communication and/or command signals from the first and second signal pins <NUM>, <NUM>. In operation, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the carousel assembly <NUM> can receive communication and/or command signals from the controller <NUM> on the material handling vehicle <NUM> via the first and second signal pins <NUM>, <NUM>.

As noted above, the actuation mechanism <NUM> of the carousel assembly can be in electrical communication with one or more of the first and second power pins <NUM>, <NUM> and first and second signal pins <NUM>, <NUM>. For example, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the actuation mechanism <NUM> can receive power from the power source <NUM> on the material handling vehicle via the first and second power pins <NUM>, <NUM>. The actuation mechanism <NUM> can also receive communication and/or command signals from the first and second signal pins <NUM>, <NUM>. In operation, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the actuation mechanism <NUM> can receive communication signals from the controller <NUM> on the material handling vehicle to issue actuation commands. The actuation commands can include positioning the plurality of storage units <NUM> in the distinct stop locations along the tracks <NUM> of the carousel assembly <NUM>.

Similarly, the indicators <NUM> of the carousel assembly can be in electrical communication with one or more of the first and second power pins <NUM>, <NUM> and first and second signal pins <NUM>, <NUM>. For example, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the indicators <NUM> can receive power from the power source <NUM> on the material handling vehicle via the first and second power pins <NUM>, <NUM> to turn on/off the indicator lights. The indicators <NUM> can also receive communication and/or command signals from the first and second signal pins. In operation, when the clamp assembly <NUM> of the material handling vehicle is engaged with the base <NUM>, the indicators <NUM> can receive communication signals from the controller <NUM> on the material handling vehicle to issue illumination commands (e.g., to change colors of the indicators <NUM>, etc.).

As detailed above, the controller <NUM> on the material handling vehicle <NUM> can actuate and control the material sorting system <NUM>. In some embodiments, the material handling system <NUM>, including the material handling vehicle <NUM> and the material sorting system <NUM>, can be utilized with a warehouse management system (not shown). The warehouse management system can generate and issue a pick command to the operator <NUM> of the material handling vehicle <NUM> (e.g., via a personal or handheld device) and simultaneously to the controller <NUM> of the material handling vehicle <NUM>. This pick command can be transmitted to the material sorting system <NUM> via the electrical contacts within the clamp assembly <NUM> (see <FIG>), when the clamp assembly <NUM> is engaged with the base <NUM> and in electrical communication with the electrical contacts within the base <NUM>. Upon the controller <NUM> receiving the pick command, the controller can trigger the actuation mechanism <NUM> on the material sorting system <NUM> to position the appropriate storage unit <NUM> to an ergonomic put position for the operator <NUM>. The controller <NUM> can communicate a signal to illuminate the indicator light <NUM> adjacent to the storage unit <NUM> to indicate to the operator which storage unit <NUM> to put the picked goods or item in. When the order-picking operation is complete, the operator <NUM> can transport the material sorting system <NUM> to an area within the warehouse via the material handling vehicle <NUM>. In some embodiments, the material sorting system <NUM> can drive autonomously between areas within a warehouse. In some embodiments, the carousel assembly <NUM> can include an onboard controller (not shown). The onboard controller can receive the pick commands from the warehouse management system and the onboard controller can trigger the actuation mechanism <NUM> on the material sorting system <NUM> to position the appropriate storage unit <NUM> to an ergonomic put position for the operator <NUM>.

In some embodiments, the carousel assembly <NUM> can include an electrical switch in electrical communication with the actuation mechanism <NUM>. The electrical switch can be actuated by an operator of the material handling vehicle to trigger the actuation mechanism <NUM> on the material sorting system <NUM> to position the appropriate storage unit <NUM> to a desired put position for the operator. In other embodiments, the carousel assembly <NUM> can include hand crank or flywheel assembly mechanically coupled to the actuation mechanism <NUM>. The hand crank can be actuated by an operator of the material handling vehicle to manually actuate the actuation mechanism <NUM> on the material sorting system <NUM> to position the appropriate storage unit <NUM> to a desired put position for the operator.

<FIG> illustrates another embodiment of a material sorting system <NUM>. In many aspects, the material sorting system <NUM> is similar to the material sorting system <NUM> described above and similar numbering in the <NUM> series is used for the material sorting system <NUM>. For example, the material sorting system <NUM> includes a carousel assembly <NUM>. The base <NUM> can include caster wheels <NUM> at corners <NUM> and the carousel assembly can include stalks <NUM> with indicators <NUM> and tracks <NUM> along which storage units <NUM> can move. The material sorting system <NUM> may also be configured to be electrically coupled to a material handling vehicle <NUM> illustrated here in <FIG> as a low-lift forklift with forks <NUM>, <NUM> extending through openings or fork pockets <NUM> in the base <NUM>. The electrical coupling can provide electrical power and communication between the material handling vehicle <NUM> and the material sorting system <NUM>. In some aspects, however, the material sorting systems <NUM>, <NUM> differ from each other. For example, the carousel assembly <NUM> can be rotated <NUM> degrees on the base <NUM> with respect to the orientation of the carousel assembly <NUM> on the base <NUM> of the material sorting system <NUM>. This arrangement can provide access to the storage units from the sides of the material handling vehicle <NUM>. This arrangement can also allow for the combination of more than one material sorting system per material handling vehicle. For example, they can be modularly stacked side by side on the forks of the material handling vehicle. In embodiments that incorporate multiple material sorting systems, multiple clamp assemblies can be integrated between the forks to accommodate the multiple material sorting systems. In some embodiments, the adjacent material sorting systems can be electrically coupled together (e.g., via cables, and the like).

In other embodiments, other configurations are possible. For example, looking at <FIG>, another embodiment of a material sorting system <NUM> is shown. In many aspects the, the material sorting system <NUM> is similar to the material sorting systems <NUM> described above and similar numbering in the <NUM> series is used for the material sorting system <NUM>. For example, the material sorting system <NUM> includes a carousel assembly <NUM> with stalks <NUM> with indicators <NUM> and tracks <NUM> along which storage units <NUM> can move. Similarly, the material sorting system <NUM> can be configured to be electrically coupled to a material handling vehicle <NUM>, shown as the low-lift forklift illustrated in <FIG>. In some aspects, however, the material sorting systems <NUM>, <NUM> can differ. For example, the base <NUM> can be a stationary base without powered or driven wheels incorporated therein. The base <NUM> can have removable caster wheels or can be provided without caster wheels. In these embodiments, the material sorting system <NUM> can, for example, be located at the end of an aisle and positioned for a vehicle (e.g., the material handling vehicle <NUM>) to engage therewith and move the material sorting system <NUM> as required. Additionally or alternatively, the material sorting system <NUM> can be placed on top of an Automated Guided Vehicle (AGV) that can move the material sorting system <NUM> from location to location. As previously described herein, the material sorting system <NUM> can be powered by the onboard power supply <NUM> via the clamp assembly (not shown) on the material handling vehicle.

In other embodiments, other configurations are possible. For example, looking at <FIG>, another embodiment of a material sorting system <NUM> is shown. In many aspects the, the material sorting system <NUM> is similar to the material sorting systems <NUM> described above and similar numbering in the <NUM> series is used for the material sorting system <NUM>. For example, the material sorting system <NUM> includes a carousel assembly <NUM> with a plurality of storage units <NUM>. Similarly, the material sorting system <NUM> can be configured to be electrically coupled to a material handling vehicle <NUM>. In some aspects, however, the material sorting systems <NUM>, <NUM> can differ. For example, the material sorting system <NUM> can be a horizontal or rotary carousel and include a single central stalk <NUM> extending vertically from the base <NUM>. The carousel assembly <NUM> can be configured to rotate about the base <NUM> around an axis generally defined by the stalk <NUM>. In the illustrated embodiment, the material sorting system <NUM> can include an external cage or structure <NUM> at least partially surrounding the carousel assembly <NUM>. As previously described herein, the material sorting system <NUM> can be powered by the onboard power supply via the clamp assembly (not shown) on the material handling vehicle.

In other embodiments, yet further various configurations are possible. For example, looking atFIG. <NUM>, another embodiment of a material sorting system <NUM> is shown. In many aspects the, the material sorting system <NUM> is similar to the material sorting systems <NUM> and <NUM> described above and similar numbering in the <NUM> series is used for the material sorting system <NUM>. For example, the material sorting system <NUM> includes a carousel assembly <NUM>. The base <NUM> can assembly can include stalks <NUM> extending from the base <NUM> and tracks <NUM> along which storage units <NUM> can move. An actuation mechanism <NUM> can be configured to move the storage units <NUM> along the tracks <NUM>. The material sorting system <NUM> may also be configured to be electrically coupled to a material handling vehicle <NUM> via a clamp assembly <NUM> (see <FIG>). The electrical coupling can provide electrical power and communication between the material handling vehicle <NUM> and the material sorting system <NUM>. In some aspects, however, the material sorting systems <NUM>, <NUM> differ from each other. For example, lateral side of the stalks <NUM> on the carousel assembly <NUM> can include openings <NUM> to allow the storage units <NUM> to be loaded/unloaded from the lateral sides of the carousel assembly <NUM>. In the illustrated embodiment, the storage units <NUM> can include a conveyor track <NUM> with a plurality of rollers <NUM> along a base of each of the storage units <NUM>. In some embodiments, the rollers <NUM> may be powered and activated (e.g., instructed to roll in a first direction or a second direction) by the connection provided between the base <NUM> and the clamp assembly <NUM>.

Referring now to <FIG>, the openings <NUM> in the stalks <NUM>, along with the conveyor track <NUM> in the storage unit <NUM>, can allow loading and unloading operations to be conducted from external conveyor systems <NUM> within a warehouse environment. That is, the material handling vehicle <NUM> may be driven up to a conveyor system <NUM> and lateral sides of the material sorting system <NUM> can be aligned with the conveyor system <NUM> such that a storage unit <NUM> on the carousel assembly <NUM> is adjacent to an end of the conveyor system <NUM>. Goods can then be loaded onto the storage unit <NUM>, or unloaded from the storage unit <NUM>. In some embodiments, the conveyor track <NUM> and/or rollers <NUM> can be rotated via a conveyor actuation mechanism (not shown). In some embodiments, the conveyor actuation mechanism can be in electrical communication with the electrical contacts within the base <NUM> to receive power and communication signals.

Furthermore, certain features and combinations of features that are presented with respect to particular embodiments in the discussion above, can be utilized in other embodiments and in other combinations, as appropriate. In this regard, for example, different configurations of the base (e.g., the electrical contacts) or the carousel assembly (e.g., the orientation of the stalks) and so on as presented with respect to a particular one of the material sorting systems <NUM>, <NUM>, <NUM>, <NUM>, <NUM> can be implemented in combination with features of any number of the other material sorting systems <NUM>, <NUM>, <NUM>, <NUM>, <NUM> or others.

While various spatial and directional terms, such as top, bottom, lower, mid, lateral, horizontal, vertical, front, and the like may be used to describe examples of the present disclosure, it is understood that such terms are merely used with respect to the orientations shown in the drawings. The orientations may be inverted, rotated, or otherwise changed, such that an upper portion is a lower portion, and vice versa, horizontal becomes vertical, and the like.

Within this specification embodiments have been described in a way which enables a clear and concise specification to be written, but it is intended and will be appreciated that embodiments may be variously combined or separated without parting from the invention, which is solely defined by the appended claims.

Claim 1:
A material sorting system (<NUM>), comprising:
a base (<NUM>) including:
a pair of fork pockets (<NUM>) adapted to receive a pair of forks (<NUM>, <NUM>) from a material handling vehicle (<NUM>);
a top wall (<NUM>);
a bottom wall (<NUM>) spaced apart from the top wall (<NUM>); and
a center wall (<NUM>) arranged between the top wall (<NUM>) and the bottom wall (<NUM>) and dividing the pair of fork pockets (<NUM>);
a carousel assembly (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>) coupled to the base (<NUM>) and including a plurality of storage units (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>) and
at least one electrical contact within the base (<NUM>) and in electrical communication with the carousel assembly (<NUM>), the at least one electrical contact being adapted to transfer power or a communication signal between the material handling vehicle (<NUM>) and the carousel assembly (<NUM>).