A cargo hold component system for a cargo hold of an aircraft, the cargo hold component system including floor elements and fixing elements. The floor elements can at least partially be fixed releasably by the fixing elements to fixing sites provided on or in the hold floor, such that in a state fixed to the fixing sites, the floor elements support a loading of the hold with cargo containers, and that in a state in which a first group of the floor elements has been removed from the fixing sites by release of the fixing elements and a second group of the floor elements has been partially removed from the fixing sites by release of the fixing elements, the hold is sealed gas-tightly.

A sealed sprocket for a conveyor belt comprises a sprocket mounted on a drive shaft and a seal system sealing an interface between the sprocket and the drive shaft. The seal system comprises a seal cap housing ring seals for sealing interfaces between the sprocket and seal cap and between the seal cap and drive shaft.

A sealed sprocket for a conveyor belt comprises a sprocket mounted on a drive shaft and a seal system sealing an interface between the sprocket and the drive shaft. The seal system comprises a seal cap housing ring seals for sealing interfaces between the sprocket and seal cap and between the seal cap and drive shaft.

A roller for a conveyor system comprises a nonlinear bore hole to facilitate retention of the roller on a roller-receiving portion of a corresponding shaft. A nonlinear bore hole comprises a central cylindrical portion for receiving a roller-receiving portion of the shaft and unaligned slots in communication with the central cylindrical portion to prevent migration of the roller from the roller-receiving portion.

An energy harvesting roller for a cargo handling system may comprise a shaft and a sleeve located on the shaft. A piezoelectric member may be coupled to the sleeve. A shell may be located radially outward of the piezoelectric member and configured to rotate relative to the sleeve. A radially inward surface of the shell may define at least one of a plurality of grooves or a plurality of protrusions.

An energy harvesting roller for a cargo handling system may comprise a shaft and a sleeve located on the shaft. A piezoelectric member may be coupled to the sleeve. A shell may be located radially outward of the piezoelectric member and configured to rotate relative to the sleeve. A radially inward surface of the shell may define at least one of a plurality of grooves or a plurality of protrusions.

This invention provides an idler for use in conveyor systems and associated shaft and support structure that reduces the potential for infiltration of contaminants into the bearing assemblies at the opposing ends of the shaft. By use of stampings, co-molded polymer with sealed metal end caps, press-fit end shafts and stamped-metal support structures a more contamination-resistant and efficiently constructed idler assembly is provided. A hollow shaft center section can be used. The polymer defines at least three sealing structures. The shaft defines a multi-piece unit, with the end shafts press-fit onto the center shaft section and held in place by the bearing subassembliesaffixed to the idler sleeve. The support framework includes three stamped and/or cut, and folded sheet metal piecesa center section with a pair of opposing central risers that engage end shafts, and two opposing, separately attached, end risers, that engage outermost idler end shafts.

This invention provides an idler for use in conveyor systems and associated shaft and support structure that reduces the potential for infiltration of contaminants into the bearing assemblies at the opposing ends of the shaft. By use of stampings, co-molded polymer with sealed metal end caps, press-fit end shafts and stamped-metal support structures a more contamination-resistant and efficiently constructed idler assembly is provided. A hollow shaft center section can be used. The polymer defines at least three sealing structures. The shaft defines a multi-piece unit, with the end shafts press-fit onto the center shaft section and held in place by the bearing subassembliesaffixed to the idler sleeve. The support framework includes three stamped and/or cut, and folded sheet metal piecesa center section with a pair of opposing central risers that engage end shafts, and two opposing, separately attached, end risers, that engage outermost idler end shafts.

A motor-driven conveying roller for conveying installations for conveying containers, pallets and the like, having a roller body, of which the outer circumferential surface constitutes a bearing surface for articles, having a drive unit, which is arranged within an interior of the roller body, and having a coupling unit, which is designed to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and has a coupling bushing, which has a drive portion, connected to the drive unit, and an outer peripheral output portion, wherein the coupling bushing is connected to the inner circumferential surface of the roller body in a frictionally fitting and/or integral manner, for torque-transmitting purposes, only at certain points.

A motor-driven conveying roller for conveying installations for conveying containers, pallets and the like, having a roller body, of which the outer circumferential surface constitutes a bearing surface for articles, having a drive unit, which is arranged within an interior of the roller body, and having a coupling unit, which is designed to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and has a coupling bushing, which has a drive portion, connected to the drive unit, and an outer peripheral output portion, wherein the coupling bushing is connected to the inner circumferential surface of the roller body in a frictionally fitting and/or integral manner, for torque-transmitting purposes, only at certain points.