| 摘要 |
PURPOSE:To eliminate the need of maintenance and to reduce the cost by providing a lens cleaner mechanism composed of a fan to be rotated by negative pressure of air sucked by a fan motor and a brush mounted on the fan. CONSTITUTION:A crank part 13 of the lens cleaner mechanism 5 is pressed by a carriage 3, and an optical head 10 is covered by a housing 12, and then the tip of a brush 11a of a rotary brush 11 is brought into contact with a lens 15 of the optical head 10. Then, by the rotary brush 11 to be rotated by negative pressure of air sucked by the fan motor 6, dust stuck to the optical head 10 is removed by the brush 11a, and can be discharged out of the device by the sucking force. When the crank part 13 is released by the carriage 3, the lens cleaner mechanism is brought back to a standby position by a return spring 16. By this method, the need of maintenance is eliminated, and the cost is lowered, and then the operator' s trouble is saved. |
