A trolley system for transferring cargo in relation to a cargo compartment of a vehicle includes a frame defining a cargo-retaining platform. The cargo-retaining platform is configured to receive and retain the cargo. At least a portion of a lower surface of the frame is formed of a low friction material. One or more handles are moveably coupled to the frame. The handle(s) are configured to be moved between a retracted position and an extended position. One or more attachments are configured to secure the cargo on the cargo-retaining platform.

The invention relates to a method for assembling a roller conveyor having rollers for products, each having a cylindrical roller body and a first and second support element on opposite ends of the roller body, the second support element having pulley means; providing a frame having a first and second frame part for mounting therebetween the rollers; and, for the purpose of mounting a roller to the frame: mounting the first support element to a first mounting provision of the first frame part; passing a drive element and a further drive element over the pulley means of the roller; tensioning the drive element by exerting a force on the roller by means of a tensioning device; mounting the second support element of the roller to a second mounting provision of the second frame part while keeping the drive element tensioned; and removing the tensioning device from the roller.

The invention relates to a method for assembling a roller conveyor having rollers for products, each having a cylindrical roller body and a first and second support element on opposite ends of the roller body, the second support element having pulley means; providing a frame having a first and second frame part for mounting therebetween the rollers; and, for the purpose of mounting a roller to the frame: mounting the first support element to a first mounting provision of the first frame part; passing a drive element and a further drive element over the pulley means of the roller; tensioning the drive element by exerting a force on the roller by means of a tensioning device; mounting the second support element of the roller to a second mounting provision of the second frame part while keeping the drive element tensioned; and removing the tensioning device from the roller.

A drive wheel for a power drive unit of a cargo handling system is disclosed. One aspect of the drive wheel is that it includes one or more wear indicators for a tire of the drive wheel. Another aspect of the drive wheel is that it includes one or more features (e.g., at least one protrusion, alone or in combination with one or more slots) that resists relative rotational movement between the tire of the drive wheel and the hub of the drive wheel.

A drive wheel for a power drive unit of a cargo handling system is disclosed. One aspect of the drive wheel is that it includes one or more wear indicators for a tire of the drive wheel. Another aspect of the drive wheel is that it includes one or more features (e.g., at least one protrusion, alone or in combination with one or more slots) that resists relative rotational movement between the tire of the drive wheel and the hub of the drive wheel.

A roller conveyor assembly construction system, including a rotatable jig assembly, a plurality of aligner assemblies, wherein each of the plurality of aligner assemblies is operatively connected to the jig assembly, a plurality of rollers located on each of the plurality of aligner assemblies, and a frame assembly operatively connected to the plurality of rollers, wherein the frame assembly is removably connected to each of the plurality of aligner assemblies.

A roller conveyor assembly construction system, including a rotatable jig assembly, a plurality of aligner assemblies, wherein each of the plurality of aligner assemblies is operatively connected to the jig assembly, a plurality of rollers located on each of the plurality of aligner assemblies, and a frame assembly operatively connected to the plurality of rollers, wherein the frame assembly is removably connected to each of the plurality of aligner assemblies.

Various embodiments illustrated herein disclose an axle lock assembly comprising a first plate with a first aperture, a second plate with a second aperture, a shaft, wherein the shaft is inserted through the first aperture and the second aperture and a bush. When the bushing is in contact with the first plate and the second plate, the bush creates a lateral force to move the first plate and the second plate in opposite directions to secure the shaft.

Various embodiments illustrated herein disclose an axle lock assembly comprising a first plate with a first aperture, a second plate with a second aperture, a shaft, wherein the shaft is inserted through the first aperture and the second aperture and a bush. When the bushing is in contact with the first plate and the second plate, the bush creates a lateral force to move the first plate and the second plate in opposite directions to secure the shaft.

A conveyor system includes a conveyor frame having a frame base and a pair of parallel frame sidewalls. Each sidewall extend from a top side of the base to a distal end defining a plurality of sockets. The sockets include a socket bearing configured to support a corresponding roller shaft and a lip element extending across the opening at the distal end. In some examples, the conveyor frame includes at least one end coupler attached at an end of the conveyor frame. In some configurations, the conveyor frame includes a plurality of frame segments each defining a portion of a length of the conveyor frame.