| 摘要 |
PROBLEM TO BE SOLVED: To provide an excavating agitation device with a corotation prevention blade, which can reliably suppress adhesion of a clod readily appearing near the corotation prevention blade, by a simple structure.SOLUTION: An excavating agitation device includes: a rotary shaft 2 that is rotated in ground; an excavation blade 3 that is protrusively provided at a lower end of the rotary shaft 2 and that excavates sediment; and a corotation prevention blade 7 that is provided in a position higher by a predetermined distance than the excavation blade 3 in the rotary shaft 2 and that has a boss part 7a loosely fitted to the rotary shaft 2 by going around the rotary shaft 2. The excavating agitation device has a blade 10 that is integrally provided on the base end side of the corotation prevention blade 7 and that is extended toward the excavation blade 3 from the corotation prevention blade 7. |
