| 摘要 |
PROBLEM TO BE SOLVED: To provide an especially large capacity device widening the right and left width of the projection area to breaden the spraying area and securing an even spraying area and making it difficult to solidify the mixed materials in an agitating and mixing means. SOLUTION: This rotary projection means is provided with an impeller 13 having blades. A part of an endless beltlike material 27 is wound on the outer peripheral face so as to open the projection direction. Other parts are hung on many traveling guide members 23, 24 positioned at the outside of the impeller peripheral face. An agitating and mixing means is provided with an agitating and mixing cylinder 3 having a truncated conical shape and an agitating member. The small diameter end 4 of the agitating and mixing cylinder 3 is positioned to communicate with supplying means 1, 2, and in a cutout 9 to partly shift the discharging position to the small diameter end is formed in the large diameter part 5. The large diameter part 5 is exposed to the blades 16. The agitating member having the rotary shaft 10 and an agitating rod 12 and the agitating cylinder 3 are rotated by a rotary agitation means to lead concrete and an accelerating agent to the large diameter part 5 while agitating them and discharge the mixture from the large diameter part 5 having the cutout to the blades 16.
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