COMPONENT CONVEYANCE DEVICE, CARRIAGE, AND METHOD FOR COUPLING CARRIAGE AND TOWING DEVICE

A component conveyance device includes a carriage, a towing device, and a connecting portion. The carriage conveys a component which is to be used in a substrate work machine configured to perform a predetermined substrate work on a substrate. The towing device tows the carriage. The connecting portion electrically connects the carriage and the towing device in accordance with positioning and coupling between the carriage and the towing device.