| 摘要 |
A soil-working farm machine including a frame 1 provided with a device 20 for hitching to a tractor vehicle. At least one row 6, 7 of two bars 2, 3, or 4, 5 equipped with soil-working tools 21 and having a phase opposition movement is connected to said frame by a plurality of oscillating arms 9, 10, 11, 12. The phase opposition movement is generated by a mechanism for transformation of the rotary movement received from a driving source into a reciprocating movement crosswise to the forward direction. The mechanism includes a connecting rod-eccentric device 22 supported by the frame 1. The connecting rod 30, 31, 32, 33 serve to transmit the reciprocating movement to corresponding bars 2, 3, 4, 5. The oscillating arms 9, 10, 11, 12 are connected, on the one hand, to the frame 1 by a connection 13, 15, 17, 15 with an axis directed at least approximately parallel to the forward direction 8 and, on the other hand, to the corresponding bar 2, 3, 4, 5 by a connection 14, 16, 18, 19 with an axis also directed at least approximately parallel to the forward direction. Each connecting rod 30, 31, 32, 33 is connected by a connection 35 with an axis directed at least approximately parallel to the forward direction 8 to an oscillating arm 10, 12 of the corresponding bar 2, 3, 4, 5.
|
