| 摘要 |
PROBLEM TO BE SOLVED: To provide an agitator which can prevent diffusion of scattering of mortar or the like during operation, and which can be easily operated by an operator.SOLUTION: An agitator is equipped with an agitation container, an agitation shaft provided near a bottom in the agitation container, and plural spiral rotary vanes which are so located around a rotary shaft as to surround the rotary shaft. The rotary vane is fixed to the rotary shaft at upper and lower parts, and is formed as a hollow body in which a clearance, in which a non-agitation product is circulated, is formed between an intermediate part and the rotary shaft. An agitation vane is preferably so fixed to the rotary shaft that as a rotation direction front side becomes low and a rotation direction rear side becomes high.SELECTED DRAWING: Figure 2 |
