| 摘要 |
PROBLEM TO BE SOLVED: To stably collet dust on a surface to be cleaned, over a wide area of the surface.SOLUTION: Cleaning rolls 50 are used for a cleaning tool 10. The cleaning tool 10 has side face opening portions 41 and the cleaning rolls 50 at a cleaning head 30. Each cleaning roll 50 is formed of an elastic roll 52 the surface of which is covered with a thin film. |
