| 摘要 |
PROBLEM TO BE SOLVED: To simply and easily adjust the capacity of an upstream side fixed-amount chamber in a fixed-amount injection mechanism including the upstream side fixed-amount chamber for expanding a fixed-amount chamber capacity used for an aerosol product.SOLUTION: In an upstream side fixed-amount chamber A structured such that it is communicated with a downstream side fixed-amount chamber B in a housing 4 housing a stem 2 interlocked with an aerosol product injection operation and the inflow valve operation part (2d and 3) of a container body content is changed from a present open state to a closed state by moving the stem 2, an arbitrary number of (one piece unit or a plurality of stacked pieces unit) of annular members 8 for internal capacity adjustment can be selectively disposed and held. According to the number, the substantive total capacity of the fixed-amount chamber (upstream side fixed-amount chamber A of housing outside + downstream side fixed-amount chamber B of housing inside) can be reduced. |
