Abstract: A rapid-change device for attachments on earth moving machines for connection between a lift chassis, which is hydraulically actuated from the carrier vehicle, and an attachment implement, for instance a loading shovel, by means of holding claws and locking latches. The locking latches are pivotally mounted on the outer periphery of hubs which are fixed on stay arms. The lift arms of the lift chassis are coaxially pivotally mounted in bores of the hubs. The stay arms are provided with holding claws having semicircular recesses which are adapted to receive holding bolts of the loading shovel. The center points of the semicircular recesses of the holding claws and the pivot points of the locking latches are coordinated with respect to each other such that the line of action of the reaction forces which are introduced by the loading shovel extends through the pivot points for the locking latches and through the center points of the recesses or above the center points of the recesses.