FIELD: transport engineering; mechanical cleaning of optical surfaces of vehicles. SUBSTANCE: proposed device consists of flexible connecting pipeline, adapter arranged on body, and washer arranged on blade arm. Flexible pipeline, connecting washer with washing liquid pumping system through adapter, bends round outer contour formed by part of blade arm walls and articulated unit by means of which arm is connected to drive shaft. Washer is displaced to leading edge of bush arm in direction of direct stroke, and adapter is installed on body with wall of blade arm in parked position. Proposed layout makes it possible to reduce area required for mounting of device, increases swing angle of blade arm and provides required reliability as excludes alternating loads in walls of pipeline, and decreases amplitude of deformations re-distributing it to three pseudoindependent sections. EFFECT: improved reliability in service. 5 cl, 4 dwg
