| 摘要 |
<p>The device has a basic table (10) with two crossing arms (11) defining a gap (12) with a set angle. Each arm has a fastener (13) to hold the frame sides to be cut. A guide structure (20) has a guide shaft (21) on one arm near the gap, and a tightening unit (22) moving on the guide shaft. The unit has a magnet to attract a saw blade mounted on it. A cutting blade section of the saw blade is located in the gap. Guide shaft and tightening unit each have a positioner, for rigid fixing of the unit on the shaft.</p> |
