| 摘要 |
<P>PROBLEM TO BE SOLVED: To smoothly carry out delay operation from the moment of operating a delay spraying mechanism to the moment of spraying and simplify the shape of each constituent part for cost reduction. <P>SOLUTION: A hole part 15d for discharging air is formed in a valve member 15 moved upward and opening a hole part 11d for passing a content in the operation mode and a port 10e for communicating with the outer space 23 is formed in a cover 10 so as to communicate the upper side space 15b and the lower side space 15b with the outer space. When an operation member 11 is turned, a stem 20 is pushed down and the valve member 15 is pushed up by the pressure of the content. The air corresponding to the diminished volume of the upper side space 15b is smoothly discharged in stratified current state while passing through the hole part 15d-the lower side space 15c-the port 10e for communicating with the outer space or through a gap 21a, so that the valve member 15 is moved smoothly upward. Since the lower side space 15c is not needed to be a close space, the shape of each component is simple. Another delay spraying mechanism in which air corresponding to the volume alteration in the upper side space is discharged to the outer space through a groove part formed in an operation member is also disclosed. <P>COPYRIGHT: (C)2004,JPO |
