| 摘要 |
<p>A sawing and cutting installation for tree trunks (1) has a cutting-head (4) linked with a hollow shaft (5), which cuts off small pieces from the side parts (1a) of the trunk (1). Fitted inside the hollow shaft (5) is a rotary sawing shaft (10) which can be moved axially, and carries a circular saw-blade (11) located co-axially with the cutting-head (4) and at a distance from the latter. The sawing shaft (10) can be driven at a rotation speed higher than that of the hollow shaft (5). The circular saw blade (11) serves for sawing a side section (1b) of selected thickness from the tree-trunk.</p> |
