| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the safety of an device by preventing the device from excessively pressurized by controlling pressure in a container body accommodating a content to be atomized to constant pressure. <P>SOLUTION: A pressure medium storage container 3 filled with a carbon dioxide is provided in a container body 1 for storing a content 2 to be atomized to emit the pressure medium into the container body 1 by controlling a valve mechanism 23 provided at the pressure medium storage container, so that the content is injected out of an injection mechanism 16. A valve operating mechanism 15 for operating the valve mechanism has a piston 51 for opening an injection hole 24 by pressing a needle valve 34 which is pressure-urged by the urging force of a coil spring 72 to close the injection hole 24 against the urging force, and a piston opening unit 64 for opening the closed state by the piston is provided at a cylinder 21 with the piston being advanced therein and retracted therefrom. The piston is moved in the cylinder 21 against the urging force for pressing the piston, and when the piston is moved to the piston opening unit 64, the cylinder is opened and communicates with the atmosphere. <P>COPYRIGHT: (C)2011,JPO&INPIT |
