| 摘要 |
PURPOSE:To improve safety in cleaning work by furnishing a safety switch that is located in a set groove covered by an arc shape elastic element, and turned OFF to break power supply to a motor when a filter is dismounted. CONSTITUTION:An arc shape elastic element 21 that presses a filter 18 towards a set groove 20 is attached in a set groove 19. An operating button 23 of a safety switch 24 is operated when a filter 18 presses the elastic element to deform it. When the operating button 23 of the safety switch 24 is pressed, the switch 24 is ON, and the button 23 is pressed while the filter 18 is mounted. When the filter 18 is mounted and dismounted, the height of the protrusion of the operation button 24 is size c, and the difference between the size c and size d is the insertion depth of the filter 18 into the groove 20. When the filter 18 is dismounted, the safety switch 23 becomes OFF. |
