NOZZLE COCK AUTOMATIC OPENING/CLOSING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a nozzle cock automatic opening/closing device performing sure operation and excellent in serviceability with a simple structure. SOLUTION: The nozzle cock automatic opening/closing device is provided with an integrated rotationally moving member 17 rotationally moving integrally with a cock opening/closing axis 16, a freely rotationally moving member 22 rotationally moving independently of the cock opening/closing axis 16 and a cam 24 abutting to the freely rotationally moving member 22. The freely rotationally moving member 22 is positioned in a region R abutting to the cam 24 by being released from the abutting to the cam 24 by dangling by the deadweight. Cock opening contact parts 20 and 26 and cock closing contact parts 21 and 26 for rotationally moving the integrally rotationally moving member 17 are provided to make a pair between the integrally rotationally moving member 17 and the freely rotationally moving member 22 so that the cock opening/closing axis 16 is positioned at a cock opening angle position O and a cock closing angle position C when the freely rotationally moving member 22 is rotationally moved by abutting to the cam 24.