Abstract: A conveyor system having a conveyor path and friction drive spaced along the path to drive carriers along the path. Each friction drive is controlled by a drive controller, which communicates tracking, routing, and other information directly to other drive controllers within range via a wireless signal. The drive controllers may also directly communicate wirelessly with a central controller. If the central controller or a desired destination drive controller is out of range of a particular drive controller, that drive controller may communicate through other drive controllers until the desired destination drive controller is reached, or a drive controller that is within range of the central controller is reached.

Abstract: A material handling device includes an automated guided vehicle configured for use with a carrier. Both the vehicle and the carrier include a bumper having a reflective target mounted thereon. The automated guided vehicle includes a sensor having a light source and a scanner for receiving a reflection from the light source. The light source directs a first light beam at the vehicle reflective target and a second light beam at the carrier reflective target. When the vehicle bumper is moved toward the sensor, the vehicle reflective target moves into a reflective position and when the carrier bumper is moved toward the sensor, the carrier reflective target moves into a reflective position. The movement of the either bumper into the reflective position generates a signal from the sensor to a controller to control the movement of the automated guided vehicle in response to movement of either bumper.

Abstract: A stackable carrier assembly, carrier stacking system, and method of storing carrier assemblies is disclosed. The carrier assembly includes a base member presenting a load surface and opposite facing transfer surface. A plurality of carrier trolleys extend transversely from the load surface to engage conveyor tracks. A plurality of track sections are coupled to the load surface for receiving the carrier trolleys of another carrier assembly. The track sections are vertically aligned with the carrier trolleys. In a power and free or friction drive conveyor system, a lift device and telescoping arm can lift and stack the carrier assemblies so that track sections of one carrier assembly receive the carrier trolleys of another carrier assembly. In an overhead conveyor system, one carrier assembly can hang from the track sections of another carrier assembly.

Abstract: An attachment system for securing conveyor components to a conveyor disposed between a pair of side guards. The side guards are U-shaped and have first and second side guard ends that extend perpendicularly from the opposite ends of a flat wall portion to a distal end. The first side guard end includes a first lip that defines a grooved portion. At least one framing channel extending between flat first and second channel ends is disposed between the first and second side guard ends. The first channel end includes a projection portion that extends from the first channel end to engage to the grooved portion of the side guard to secure the first channel end adjacent the first side guard end.

Abstract: An attachment system for securing conveyor components to a conveyor disposed between a pair of side guards. The side guards are U-shaped and have first and second side guard ends that extend perpendicularly from the opposite ends of a flat wall portion to a distal end. The first side guard end includes a first lip that defines a grooved portion. At least one framing channel extending between flat first and second channel ends is disposed between the first and second side guard ends. The first channel end includes a projection portion that extends from the first channel end to engage to the grooved portion to secure the first channel end adjacent the first side guard end. At least one tab extends outwardly from the second channel end to engage an end guard opening defined in the second side guard end to secure the framing channel to the side guard.

Abstract: A method and system for automatically loading and unloading a transport is disclosed. A guidance system follows a travel path to a position near the transport and then a sensor profiles a transport so that a transport path is determined for an AGV to follow into the transport to place a load and for exiting the transport upon placement of the load.

Abstract: The subject invention provides for a slider bed conveyor system that allows for lateral movement of a longitudinally moving conveyor of a fixed length. The system includes a first conveyor section having a first surface that extends between opposing first walls. A second conveyor section is operatively connected with the first conveyor section and includes a second surface that extends between opposing second walls. The first and second conveyor sections support the longitudinally moving conveyor and the second conveyor section is laterally moveable in relation to the first conveyor section.

Abstract: A workpiece transport assembly includes an automatic guided vehicle having a guide wheel that drives the automatic guided vehicle along the production floor surface. A frame is releaseably attached to the automatic guided vehicle and defines a work area for assembling a workpiece. The automatic guided vehicle transports the frame to a reaction rail where the frame engages the reaction rail. A drive wheel assembly is mounted to the frame and includes a drive wheel that is movable between a drive wheel engaging position where the drive wheel engages the reaction rail to move the workpiece transport assembly along the reaction rail and a drive wheel disengaging position where the drive wheel disengages the reaction rail. The workpiece transport assembly is driven by at least one of the guide wheel and the drive wheel for movement through the assembly operation.

Abstract: A method and system for automatically loading and unloading a transport is disclosed. A first guidance system is used to travel near the transport and a second guidance system is used to travel on the transport.

Abstract: A diverter assembly for conveyor systems that moves in a substantially linear direction in and out of the path of loads on the conveyor system.

Abstract: A material handling vehicle, such as an AGV, for loading and unloading a transport and wherein the vehicle includes a pair of freely floating forks. The forks are freely moveable in the vertical direction as well as capable of pivoting or tilting about an axis relative to a fork carriage, however when a load is applied, the forks are locked are prevented from such free floating movement.

Abstract: A method and system for automatically loading and unloading a transport is disclosed. A guidance system follows a travel path to a position near the transport and then a sensor profiles a transport so that a transport path is determined for an AGV to follow into the transport to place a load and for exiting the transport upon placement of the load.

Abstract: A method and system for automatically loading and unloading a transport is disclosed. A first guidance system is used to travel near the transport and a second guidance system is used to travel on the transport.

Abstract: A device and method is provided for use in connection with electrically grounding an automated guided vehicle. A grounding strap is suspended from the automated vehicle for contacting an electrical conductive ground device mounted to a floor along a travel path of the automated guided vehicle. In operation, the grounding strap contacts the electrically conductive ground device to electrically ground electronics used in connection with the guided vehicle.

Abstract: An overload protection system and method of protecting a drive unit includes a torque arm assembly mounted to a fixture and a gear reducer. The reducer includes a bracket mounted to an axle of the reducer which is positioned adjacent to a measuring device. The torque arm assembly includes a switch mounted to sense a location of the reducer bracket relative to the switch thereby causing a condition of the drive unit to be adjusted. In the preferred embodiment, the switch is a proximity switch positioned adjacent to the bracket of the reducer after a desired preset torque of the torque arm is obtained through the use of a simple fastener and spring arranged in a housing.

Abstract: A vehicle having (i) a rotatable platform for securing a load thereto, and (ii) an object detection system for detecting an object in the vehicle's path of travel. The sensitivity of the object detection system is variable so that it can be varied based on the rotated position of the load.

Abstract: The invention relates to conveyor systems with skillets adapted with connectors to enable power to be conveyed between skillets that are abutted together along a production area. With the skillets being electrically connected, the conductor only needs to supply power the electrical receiving device of a single skillet at any given time. The conductor in turn can be limited to a length of about one skillet, which reduces the wear, as well as installation, repair and maintenance costs.

Abstract: A method and apparatus for tracking a load on a conveyor system using the trailing edge of the load. The method includes the steps of sensing the trailing edge of the load with a first sensor and updating a load record for the load in response to sensing the trailing edge of the load with the first sensor. The apparatus may include a conveyor, a controller, and a sensor in communication with the controller for sensing the trailing edge of a load on the conveyor.

Abstract: A manufacturing operation having a first production area, a second production area, and a plurality of platforms each having independently controllable drive assemblies for moving the platforms through the production and delivery areas. Adjacent platforms are spaced from one another a first distance in the delivery areas and a second distance in the production areas, wherein the first distance is greater than the second distance and, preferably, where the second distance creates a “zero” gap between adjacent platform decks.

Abstract: A station control system for and method of controlling the operation of a driverless vehicle. The system includes a vehicle travel path, a plurality of station tags in readable proximity to the travel path, and a vehicle movable along the travel path. Each of the tags are pre-programmed with a unique and arbitrary tag identifier. The vehicle has a tag reader and a controller communicating with the reader with the tag reader is configured to read tag identifiers from the tags. The controller is configured to receive the tag identifiers from the tag reader and access a correlation table having a function command associated with the tag identifier. The method includes the steps of reading the tag identifier associated with one of the plurality of tags, accessing the correlation table to identify a command in the function field associated with the tag identifier, and executing any identified command.