Electric kitchen appliance with multiple functions for treating foodstuffs

In an electric kitchen appliance with multiple functions for the treatment of foodstuffs, comprising a casing (1,1') of which a portion forming a base (2,2') receives various accessories including a bowl (3) having a cover (4) and in which turns a working tool (5, 6, 8) which is driven, through a hole (9) provided in the bottom (10) of the bowl, by an output shaft (11) of a motor assembly, an electrical control device for current supply to the motor comprising detection means for the presence of the cover (4) on the bowl (3) and adapted to impart to said device an active condition permitting operation of the motor when the cover is brought to a correct position closing the bowl, and a speed changer adapted to set the speed of the output shaft to be appropriate to the tool used;

• the improvement wherein the electrical device for controlling current supply to the motor comprises also means for the detection of the presence and of the correct positioning of the bowl (3) on the base (2, 2'), and means for identifying various different covers (4) which is associated with the means for the detection of the presence of the cover on the bowl so as to control the speed changer to match to each cover (4) an appropriate speed of the corresponding tool (5, 6, 8).