| 摘要 |
PROBLEM TO BE SOLVED: To effectively collect dust generated below a material to be cut. SOLUTION: A dust collecting ruler 1 is connected perpendicularly to a presser plate 2 and comprises an upper plate 3 and a lower plate 4 which pinch the material to be cut from up and down. Ribs 11 and 12 and a guide rib 13 are disposed in upright on an upper surface of the lower plate 4, and a first dust collecting route 15 communicating with a dust collecting cylinder 10 and second dust collecting routes 16, 16... open to a side edge 14 of the lower plate 4 by being branched from the first dust collecting route 15 can be respectively formed between the material to be cut and the lower plate 4 under a state of being set to the material to be cut.
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