| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission device of a seeder, which has a clutch for swinging a clutch arm by the operation of a lever to engage or disengage a transmission chain with a driving side sprocket, and prevents the sag of the transmission chain, when the clutch is engaged or disengaged.SOLUTION: The power transmission device of the seeder is characterized by arranging a tension roller 131 disposed on the loosing side portion of the transmission chain 102 in a state capable of being moved in the direction for approaching or separating from the outer peripheral side of the transmission chain 102, energizing to press the outer peripheral side of the transmission chain 102 with a spring 136, contacting a tension roller 132 on the tension side of the transmission chain 102 with the inner peripheral side of the transmission chain 102, and immobilizing the tension roller 132 to the transmission chain 102. |
