| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning device of a vehicle lighting fixture capable of stably injecting a predetermined quantity of cleaning liquid by always surely opening a valve while attaining miniaturization. SOLUTION: This cleaning device of the vehicle lighting fixture is formed by molding a valve case 7 for storing a check valve mechanism in a flat elliptic cylindrical shape by constituting the check valve mechanism for opening-closing the valve 8 by pressure of the cleaning liquid independently of a cylinder for receiving supply of the cleaning liquid. A pressure receiving surface 8B is formed on both sides of a circular seating surface 8A of the valve 8 for constituting a check valve. A stopper part for regulating its opening by abutting on the valve 8 is arranged in a valve guide for slidably holding the valve 8. COPYRIGHT: (C)2011,JPO&INPIT |
