| 摘要 |
PURPOSE: To provide a suction nozzle which involves lesser air resistance and has less likelihood of sticking of any foreign matter, for example dust or rubbish. CONSTITUTION: A through hole 5 in a nozzle tip 4 is given a bore in a smooth conical form by shaving the inner surface with a cutter having a crescent section. Accordingly the air resistance is small, the component attracting force is large, and sticking of foreign matter is unlikely. |
