the present invention relates to a device for throwing targets for shooting sports , with instant projection of the target . the device is characterized in that it comprises means for blocking the movement of the arm in abutment , enabling the arm , to go beyond the “ zero point ”, by the action of the driving means , while keeping the throwing means in tension , with these blocking means being carried by the driving means and engaging with complementary blocking means carried by the arm , and wherein the throwing arm comprises a rotating shaft , with said shaft carrying a pinion driven by a second drive pinion connected to the output pin of the driving means comprising a geared motor , with the means for blocking in abutment having a stop carried on the periphery of a crank pin rotating about the output pin of the geared motor . applications in the field of shooting sports , both rifle shooting or revolver shooting and in archery .