Abstract
As a root vegetable harvester which took roots with soil around them, a primary model which was consisted of a pair of disks arranged in parallel was developed. The efficiency of the model and the kinematic locus of roots were tested by using root vegetable simulator in an artificial field.
The result of experiments showed that the taking efficiency of the model was almost same efficiency as the rectangular plates in the previous report. And it was recognized that the simulator was inclined forward or backward by the behavior of revolving disks. But this inclination was very small compared with the broken angle of roots.
From the analysis based on these results, it was considered that the harvesting mechanics with disks was simple and its efficiency was high.
