| 摘要 |
A compact radius log sawing apparatus cuts a log longitudinally along a radius curve to produce boards. This sawing apparatus includes a C-shaped housing containing a plurality of radially adjustable paired rollers, and a continuous flexible saw blade provided with teeth at one or both edges. A support exposes a section of saw blade that is curved and stabilized by the use of electromagnetic fields in cooperation with rollers. The saw is then configured to make a cut of a desired thickness in a curve parallel the growth rings of a log, in an arc which minimizes the number of knot defects in the board. The compact radius cutting saw may be modified to provide a straight cut by replacing the curved blade with a conventional band saw blade. This straight cut saw may optionally include a guide/drive wheel assembly positioned within or external to the housing. An extendable and retractable sleeve at each open end of the C-shaped housing is provided to further stabilize the saw blade and provide a gentle flow during its course of travel. |
