Patent ID: 7182276

Claim:
A cleaning device for a vehicle lamp comprising: a cylinder to which a cleaning liquid is supplied; a piston slidably coupled to the cylinder and including a cleaning liquid passage; a nozzle including a injection port for injecting the cleaning liquid; a retracting spring interposed between the piston and the cylinder so as to urge the piston in a direction of retracting the piston into the cylinder; a check valve interposed between the nozzle and the piston, wherein the check valve includes a cleaning liquid influx portion, a valve disposing portion, and a cleaning liquid efflux portion; and a valve body disposed in the valve disposing portion, wherein at least a portion of the valve body moves in a direction substantially perpendicular to the sliding direction of the piston, so as to open and close a space between the cleaning liquid influx portion and the cleaning liquid efflux portion.