| 摘要 |
<P>PROBLEM TO BE SOLVED: To stabilize an operation of injection of a washer fluid from an injection nozzle by securing a smooth flow condition of the washer fluid. <P>SOLUTION: A device for washing a lighting fixture for a vehicle includes: a cylinder 2 into which the washer fluid is supplied from a supply tank; a piston 3 in which a first channel 3a allowing the flowing of the washer fluid supplied to the cylinder is formed, and which is supported in an axially movable manner in a partially protruded state by the cylinder; and a valve case 4 which comprises the plurality of injection nozzles 29 and 29 for each emitting the jet of washer fluid, and which is connected to one axial end of a part, protruded from the cylinder, of the piston. A second channel 4a, and a plurality of third channels 4b and 4b communicating with the plurality of injection nozzles, respectively, are formed inside the valve case. The piston is moved integrally with the valve case in the direction of protruding with respect to the cylinder, and the washer fluid is jetted from each of the plurality of injection nozzles. A valve 24, which is opened/closed in accordance with the liquid pressure of the washer fluid to supply the washer fluid/stop the supply of the washer fluid, is arranged. <P>COPYRIGHT: (C)2013,JPO&INPIT |
