| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lock assembly for a secondary valve having little variation in secondary valve locking performance, and a trigger-type pump dispenser with the same built therein. <P>SOLUTION: The lock assembly 30 for locking the function of the secondary valve 31 includes a nozzle 32, a hollow piston 33 and a spinner assembly 34. A female screw part 32a in the nozzle is screwed onto a male screw part 33a on an outer periphery of the hollow piston, the piston assembly is fitted into a hollow part 33b in the hollow piston to be axially movable, the spinner assembly is configured by integrally coupling a spinner 35 and a valve body 37 for secondary valve via a spring 36 for secondary valve, the valve body for secondary valve faces a valve seat 33c for secondary valve formed on the tip of the hollow piston, and the spring for secondary valve is formed into a meandering shape and has protruded abutment parts 36a on facing parts which are formed into the meandering shape. <P>COPYRIGHT: (C)2013,JPO&INPIT |
