| 摘要 |
PURPOSE:To prevent the sedimentation of chemicals onto a hose and nozzle by installing a high pressure spray nozzle and low pressure spray nozzle and supplying the water for rinsing the residual chemicals after spraying the chemicals, in a car washer for carrying out the spraying of chemicals. CONSTITUTION:When a set time lapses after the completion of the spray of the mixed liquid of fur removing agent and water under a low pressure, solenoid valves V4 and V7 are opened. Then, pumps P2 and P3 are turned-ON, and water is jetted under low pressure from a nozzle 3b, and a hose 2b and the nozzle 3b are cleaned. The residual chemicals are rinsed by the jetting of water for a prescribed time, and sedimentation of chemicals onto the hose 2b for low pressure and the nozzle 3b is prevented. Therefore, clogging of the nozzle opening by chemicals is prevented, and the bad influence exerted onto the nozzle, hose, and car body by the chemical change can be prevented.
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