| 摘要 |
<p>In a soil cultivating implement or rotary harrow of the kind which comprises a row of soil working members that are rotatable above the upwardly extending axes of corresponding shafts (3) and a ground roller (18) which is disposed rearwardly of the row of soil working members with respect to the intended direction of operative travel (A) of the implement, the roller (18) is pivotally (11) connected to the top of a frame portion or gear box (1) of the implement by a support (39) which comprises a carrier (15) of the roller and two forwardly directed arms (13) which arms fit exactly between corresponding pairs of upright support plates (9, 10). The arms (13) and the carrier (15) are highly resistant to torsional deformation. The arms (13) are spaced from one another and from the opposite ends of the frame portion or gear box (1) and a manually operable adjustment mechanism (25) has crank handles (28, 29) at both its front and rear enabling adjustments to be made from the driving seat of an operating tractor or from the rear of the implement.</p> |
