Article transport device

An article transport device is provided with a feeding unit (21) that feeds a packaging container (W), a loading belt conveyor (22) that transports the packaging container fed from the feeding unit toward a seal attaching mechanism (10), a passage confirmation sensor (32) that detects the passage of the packaging container being transported by the loading belt conveyor past a prescribed position, a pusher (31) for temporary stopping that temporarily stops subsequent packaging containers while a packaging container is being processed by the seal attaching mechanism, an article stopper (30) that stops subsequent packaging containers by blocking the direction of advancement of same while a packaging container is being processed by the seal attaching mechanism, and an article confirmation sensor (33) that is provided further upstream than the passage confirmation sensor. When the passage confirmation sensor confirms the passage of one packaging container, the pusher for temporary stopping is activated, and subsequent packaging containers are temporarily stopped.