Patent ID: 8356706

Claim:
A conveyor device for flat cardboard sheets in cardboard-box forming machines, comprising: an encoder; a tractive mechanism; a clutch mechanism; and a horizontal entraining loader including a lateral chain that includes transverse pushers, cross axles, and end pinions connected to the cross axles; wherein the tractive mechanism is vertically movable and connected to the end pinions by the lateral chain, so that the length of the horizontal entraining loader is adjusted to the sizes of the cardboard sheets and to a relative location of a box forming station by varying the distance between the cross axles, and the tension of the lateral chain is maintained by varying the position of the tractive mechanism in the vertical direction; wherein the clutch mechanism is operably coupled to the tractive mechanism in order to disengage transmission if a blockage occurs; and wherein the encoder is connected to the tractive mechanism and controls the position of the transverse pushers.