2025 Volume 43 Issue 6 Pages 607-610
We have developed a compact and high-stretch ratio robot arm that can avoid interference with crops which are grown in synecocultureTM. This robot arm has pitch axis rotation by parallel drive of convex. Compared with the existing arm, it expanded the stroke from 300[mm] to 1,200[mm]. Also, the Pitch axis angle has been improved from one-way operation from 0[deg] to $-$90[deg] to bi-directional operation from 25[deg] to $-$90[deg].