| 摘要 |
PROBLEM TO BE SOLVED: To provide a seedling transplanter in which a combination of gears in rotary cases is enabled to cope with a wide stock-interval, capable of accurately setting a transplanting interval in case of a narrow stock-interval.SOLUTION: The transplanter includes: a rotary case that turns around a driving shaft 30; a rotation shaft 34 rotatably attached to the rotary case; a transplanting body 27 that rotates together with the rotation shaft; a planetary gear 42 fixed to the rotation shaft 34; a counter gear 41 that engages with the planetary gear; and a fixed sun gear 40 that engages with the counter gear, wherein, twice of the length from the driving shaft to the rotation shaft is equal to the length from the rotation shaft to the tip of a seedling-taking tine, an axial center of the counter gear is located at the front side in the rotating direction from a straight line connecting the axial centers of the sun gear and the planetary gear, an angle &thetas;2 between this straight line and a straight line connecting the axial centers of the sun gear and the counter gear is 18± 2°, and angle &thetas;1 between this straight line and a straight line connecting the center of the rotation shaft and the tip of the seedling-taking tine is 122± 2° when the tip of the transplanting body is located at its lowest point. |
