Importance

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Abstract

A flow rate regulator of a unit structure, in which the mechanism keeps constant the amount of injection of the contents in an aerosol container independent of a variation in pressure of gas for content ejection. The flow rate regulator unit has an outer sheath member (15), an inner sheath member (16), piston members (17, 18), a coil spring (25), and an ejection piece (19). The contents are ejected in substantially the following route: “hole (15a)—annular space region (21) for outer path—hole (16a)—annular space region (22) for inner path—holes (17b, 18b)—inside path (18c)—valve action region (20)—penetration section (16d)—groove-like sections (16f, 19a)—ejection hole (19c).” An annular skirt section (17a) moves in the left-right direction based on a magnitude relation between force in the right direction caused by ejection gas pressure and acting on the piston members (17, 18) and urging force to the left direction caused by the coil spring (25), and this changes an inflow cross-sectional area from the hole (16a) for flow rate adjustment to the annular space region (22) for inner path.

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First Claim