PURPOSE: To prevent lowering of the distance of sight by interposing a flow interruption period between injections of two or more nozzles, which are switched over to work one after another and spray a cleaner liquid onto two or more headlamps.

CONSTITUTION: In case there are a couple of headlamps 8, 8', a cleaner liquid in a tank 4 is fed through conduit pipes 12, 12' alternately with the aid of a cleaner liquid feeding passage selector valve 5 and sprayed onto the front surfaces 9, 9' of the lenses of headlamps 8, 8' from a pair of nozzles 6, 6' arranged facing to these lens surfaces. The reduction command of the clearly visible period of minute time when there is residual water spray immediately after the nozzle injection is compensated by interposing a flow interruption period between flow periods in the selector valve 5, and thereby the actual visible period is approached to half the period for one nozzle and to the whole period for two nozzles.