| 摘要 |
PROBLEM TO BE SOLVED: To prevent a car washing accident by enabling a user to surely grasp matters to be attended before washing a car with a car washer. SOLUTION: The matters to be attended are conventionally described on a front face of a top nozzle 6 and a shutter 8 equipped in the car washer 1, and when a vehicle A becomes a standby state before washing the car, the top nozzle 6 and the shutter 8 are lifted by a prescribed frequency for a prescribed time.
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