Abstract: A pickup truck cab and box marrying and decking system for vehicle assembly plants is adapted to newer style pickup trucks in which portions of the box front end extend forwardly to wrap around the back corners of the cab to provide a flowing appearance. The disclosed system lifts the cab and box sections off skids on a first conveyor and transfers them to over a second conveyor bringing in a chassis frame. Measurement devices determine the position of locating fixtures on the frame. The cab and box sections are then brought together, or married, and are precisely aligned with the frame locating fixtures. The cab and box sections are then lowered to deck the married sections on the frame in precise alignment with the locating fixtures.

Abstract: A conveyor arrangement is particularly adapted for use in tractor trailers and utilizes a pair of free conveyors extending parallel and generally mounted to the trailer floor adjacent the trailer sidewalls. An elongate powered conveyor extends parallel to the free conveyors and is mounted medially on the tractor floor. The powered conveyor includes an upwardly shiftable platform which rides longitudinally upwardly and downwardly on ramps and is moved thereon by a linear actuator including a leverage arm and linkage. A continuous conveyor chain travels about the upwardly and downwardly shiftable platform and is driven by a motor and sprocket arrangement. The chain drive motor and the linear actuator for causing upward shifting are housed in an enclosure located beneath the tractor trailer floor and which is accessible from beneath the trailer for maintenance.