| 摘要 |
<p>A saw assembly for a grip-harvester comprises a saw chain running around a bar, a pivotably journalled bar holder, and a liquid supply device having at least one nozzle for supplying at least one functional marking liquid to a cut surface produced during a sawing operation. The nozzle is mounted inside the saw box of the saw assembly and is fixed at a predetermined distance from a tree, measured at the saw cut to be executed. The nozzle is so directed that a liquid jet encounters the bar at an acute angle alpha(e.g. alpha=20-40°) and is deflected in towards the cut surface via a space between the bar and the cut surface. A control device initiates the supply of a liquid jet when the bar has been inserted a predetermined distance into the tree.</p> |
