Patent attributes
A transfer device includes a conveyor, a slide arm, hooks, and a controller. The conveyor can is configured to transport an article placed on a top surface thereof in the direction parallel or substantially parallel to the article transporting direction. The slide arm is configured to slide and move in the direction parallel or substantially parallel to the article transporting direction. The hooks are attached to the slide arm and are configured to move between action position protruding toward the article placed on the conveyor in a direction crossing a sliding direction of the slide arm and a retract position to avoid contact with the article placed on the conveyor. The controller controls the conveyor to transport the article in the direction opposite to the article transporting direction so that an end of the article in the opposite direction of the article transporting direction reaches a position adjacent to the hook, and then moves the slide arm in the article transporting direction.