| 摘要 |
<p>A method and apparatus for treating crops in rows to destroy weeds in and adjacent to the crop rows. First and second probes (15,16) are provided, preferably connected up to a high voltage source of electricity, and mounted so that they extend into crop row from opposite sides thereof. A frame mechanism (12) mounted for movement in a given direction is provided, and the probe mounting structures (20) are pivotally mounted to the frame mechanism (12) for movement about a vertical axis with respect to the frame mechanism. The probe mounting devices (20) are operatively tied together by a turnbuckle assembly (44) or the like, so that the probes (15,16) will move with each about their respective vertical axes and engage crops in the rows, the crops centering the probes. The probes (15, 16) are also mounted for pivotal movement about a horizontal axis (B-B) so that they will move out of the way of unyielding obstructions they might encounter. Third and fourth probes (50, 51) also are preferably provided horizontally spaced from the first and second probes (15, 16), and mounted so that they contact all plants on either side of the crop rows, and after contacting of the plants therewith is terminated the first and second probes (15, 16) contact all of the plants in and around the crop rows. The first and second probes (15, 16) slant backwardly from the frame mechanism (12), opposite the given direction of movement, while the third and fourth probes (50, 51) are generally perpendicular to the given direction of movement.</p> |
