| 摘要 |
PURPOSE:To dispense with the trouble to install or open an air suction frame by making the center rear surface of a blower cabinet in common with the air suction frame when a main body consisting of a chemical tank, the blower cabinet, a stirring case, etc., is blow-molded integrally into a single block. CONSTITUTION:A main body consisting of a chemical tank 1, a blower cabinet 3, a stirring case 10, etc., of a back-carrying power-driven sprayer is blow- molded integrally. At that time, the center rear surface of the back-carrying frame side of the blower cabinet 3 is molded in waveform, and after plane- cutting of the waveform part, a waveform projecting part is used as an air suction frame 15 of spider's web form, and a recessed part is used as an air suction hole. Subsequently, the trouble to mount the air suction frame or open the suction frame can be saved. In addition, an air suction hole can easily be opened by single cutting, the number of required components be reduced without the necessity to use the air suction frame and cost involved be de creased. |
