| 摘要 |
An agricultural implement (10), including: (a) a frame assembly (11) adapted to be towed or drawn by a tractor; (b) an arm (12) operatively connected to one end of the frame assembly (11) for up and down pivoting movement relative thereto; (c) a walking beam (14) mounted intermediate its ends to the other end of said arm (12) for up and down pivoting movement relative thereto about a pivot axis extending generally laterally of the direction of travel of the implement (10); (d) a first forward disc (17) mounted to the forward portion of said walking beam (14) for rotation relative thereto about a first forward rotation axis extending generally laterally of the direction of travel of the implement (10) and adapted to open the soil outwardly one way to receive seed or fertiliser; (e) a first rearward disc (21) mounted to the rearward portion of said walking beam (14) for rotation relative thereto about a first rearward rotation axis extending generally laterally of the direction of travel of the implement (10) and adapted to open the soil outwardly the other way to receive seed or fertiliser, and (f) biassing means (51) operatively engaged with the arm (12) to bias said other end of the arm (12) towards the soil.
|
