US Patent 10017327 Conveying equipment with utilization of conveying traveling body

Conveying equipment with utilization of a conveying traveling body includes a conveying traveling body which includes a plurality of trolleys in a traveling direction and a load bar connecting these trolleys and a friction drive section which is provided in the traveling path of the conveying traveling body. The load bar is provided immediately below a pair of left and right guide rails for supporting and guiding the conveying traveling body, and a friction drive wheel which is pressure-contacted with a side surface of the load bar to propel the conveying traveling body in the friction drive section is arranged below the guide rails.