| 摘要 |
At the site where trees are freshly felled, the disclosed apparatus by means of a boom arm and claw, pulls the merchantable portions of one or more tree stems through a cutting head assembly. The tree stems are topped by a topping saw removing their unmerchantable tops. The merchantable portion of the tree stems fall by gravity into a guide through and are pushed through a flail mechanism which completely removes the smaller supple limbs and remaining bark missed by the cutter head assembly. The merchantable tree stems are then extracted by the boom arm from the flail mechanism and stacked or loaded on a truck to be taken to a lumber mill. Single tree stems of large diameter, multiple smaller diameter tree stems, and tree stems of hardwood or softwood may be processed by the disclosed invention. The freshly felled tree stems are grasped by the boom arm claw and put through the disclosed apparatus without letting go. This yields an efficient and quick processing method. The protection covering of the flail mechanism provides a safer environment for workers and a more efficient debarking and delimbing device which renders a tree stem ready for processing at a lumber mill.
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