ROTARY TYPE RICE TRANSPLANTING MECHANISM IN RICE TRANSPLANTER

摘要

PROBLEM TO BE SOLVED: To provide a rotary type rice transplanting mechanism in a rice transplanter with improved transplanting operability for reducing the falling of seedlings set so as to position a maximum deceleration position in a deceleration section to a phase position immediately after a division pawl is passed through a seedling mounting base or the like. ;SOLUTION: Among a sun gear, a planetary gear 21 and an intermediate gear 20 or among a second intermediate gear 20 and the planetary gear 21, a partial acceleration section part for tentatively accelerating a rotation speed in a seedling transplanting shaft 15 to the rotation speed faster than the rotation speed in the deceleration section is formed on the phase position when the division pawl 17 approaches a field surface 33 in the deceleration section where respective seedling transplanting bodies 16 are lowered to the field surface 33. The front side in a rotation direction of the partial acceleration section part is turned to a first deceleration section and a rear side is turned to a second deceleration section. The maximum deceleration position in the first deceleration section is set to the phase position immediately after the division pawl 17 in the respective seedling transplanting bodies is passed through the seedling mounting base 6 or the phase position near it. Also, it is preferable that the motion track 22 of the tip of the division pawl 17 is turned to an almost elliptic shape long in a vertical direction.;COPYRIGHT: (C)1997,JPO