MIXER

PROBLEM TO BE SOLVED: To prevent foreign matter from penetrating into a mixer by miniaturizing the mixer and enabling the replacement of a mixing container not prescribed in size or shape. SOLUTION: A cylindrical revolving drive shaft and the rotary drive shaft inserted in this shaft in a freely rotary manner are respectively connected to separate drive sources and the rotary frame formed so as to cover a transmission mechanism part wherein the rotary drive shaft and a mixing container 2 are connected is connected and fixed to the revolving drive shaft and a mixing container 2 and a balance weight are arranged to both ends of the rotary frame. The mixing container 2 has its center shaft as a rotary shaft and is arranged on the crossing line to the revolving drive shaft and the end part of the mixing container 2 is supported in the rotary frame in a freely rotatable manner and the replacement of the mixing container not prescribed in size or shaft is made possible and the mixing container 2 is supported in a cantilevered state by the revolving drive shaft to minimize a mixer and the transmission mechanism part is covered with the rotary frame to prevent the penetration of foreign matter.