| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor cleaning apparatus that can reduce possibility of inducing malfunction of a motor by preventing excessive load on the drive shaft of the motor.SOLUTION: The polisher includes: an electric motor 21 that has a drive shaft 21a penetrating a motor base 22 downward; a cylindrical cover 24 that encloses a pad base 38 mounted with a pad 39; a shaft support member 30 that is mechanically connected to the drive shaft 21a; upper side bearings 22b that support the drive shaft 21a by freely rotatably supporting the shaft support member 30; a flat eccentric fly wheel 31 in which weight stones 31b are installed rotatably asymmetrically; a driver support shaft 32 that is connected to the lower part of the shaft support member 30 and that has a center line at a position deviated in parallel from the center line of the drive shaft 21a; and lower side bearings 33 that transmit the rotation of the driver support shaft 32 to a pad housing 37 connected to the pad base 38.SELECTED DRAWING: Figure 5 |
