| 摘要 |
<p>PURPOSE: To enable air cleaning operation when there is introduction of air into a blasting duct even if a fan is stopped, by operating an air cleaner in accordance with the detection signal from a blasting operation detecting means and an air introduction detecting means. CONSTITUTION: A control section 50 stops a high voltage generating section 40 of the air cleaner 30 and stops the air cleaning function of an ionizer 16 by judging that an automobile is not running, from the absence of a vehicle travel detection signal AG1 from a vehicle travel detecting means 4 when the automobile stops to wait for a go signal. Further, the control section 50 obtains the vehicle travel detection signal SG1 from the vehicle travel detecting means 45 when the wait for the go signal is released and the automobile begins to run. The control section starts the high voltage generating section 40 of the air cleaner 30 and restarts the air cleaning function of the ionizer 16 when the control section judges the run of the automobile. As the result, the air introduced from the outside is cleaned by the air cleaner 30.</p> |
