| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the use of a sealing material for a valve section of a metering valve for an aerosol container filled the aerosol through a housing from a stem or its circumference in the state of downwardly bending a stem gasket by pushing down the stem. SOLUTION: The metering valve has an annular outer peripheral surface 25a sliding vertically along the valve section 15 formed on the inner peripheral surface of a housing 10. A closing surface section 15b for closing the valve section 15 by coming into opposite contact with the outer peripheral surface 26a in an activation position and a back-up surface 15a for opening the valve section 15 by back-up from the outer peripheral surface 25a in an ordinary state is formed adjacently to the front end side of the closing surface 15b. A back-up surface 15c for opening the valve port section 15 by back-up to the outer peripheral surface 25a in a filling position where the stem 20 is operated to be further pushed down from the activation position is formed adjacently to the base end of the closing surface 15b. |
