US Patent 10165738 Blow operation device

To reduce fatigue in the arm of an operator of a blow operation device driven by an electric motor and to realize a blow operation of blowing and gathering generated compressed air from both the right and left with a small operational burden. A blow operation device includes a backpack type frame, a battery attached to the frame, a blower body having an electric motor to which power is fed from the battery and having an axial fan driven by the electric motor, and a blower tube connected to a blow side of the blower body, the frame including a back contact surface, and the blower body being attached to the frame such that axial directions of the electric motor and the axial fan are along the back contact surface.