ASSISTING DEVICE OF TIRE ATTACHING WORK

PROBLEM TO BE SOLVED: To achieve reduction in operator's burden when a tire is attached to a vehicle under floor portion in a vehicle assembling line.SOLUTION: An assisting device of tire attaching work related to the present invention includes: a mobile cart; a lifting frame mounted on the mobile cart in a liftable manner; a tire supporting table which is attached to the lifting frame and is constituted so as to be vertically turnable between a horizontal position and a standing position, and is constituted so as to receive a standing tire in the standing position; a rising force supplying mechanism supplying the lifting frame with force in rising direction; a table turning mechanism which turns the tire supporting table from the standing position to the horizontal position by an action in which the lifting frame rises relative to the mobile car, and thereby turning down the tire supported by the tire supporting table from the standing state to the horizontal state.