FINGER-OPERATING PUMP SPRAYER WITHOUT AIR HOLE

摘要

PROBLEM TO BE SOLVED: To provide a pump sprayer to spray a slight amount of perfume with excellent priming property by forming a shipper-seal in an inlet tube and shaping a rod in a hollow piston in a plunger and the inlet tube as to pierce the shipper-seal with the combined works of the rod and inlet tube. SOLUTION: A tubular member 11 of a pump sprayer 10 has a united transverse wall 15 to partition a container part 16 together with a plug 14 and a sleeve 17 sounding a pump cylinder 18 is formed in the upper side of the wall. A united immersion tube 19 and a united hollow inlet tube 21 are extended respectively to the container from the transverse wall 15 and to the cylinder 18 from the transverse wall 15 and a plunger head 22 is extended to the outside from its open end 12. The plunger has a pump piston 24 which partitions a discharge path 25 and the piston 24 demarcate the pump chamber 26. Being parted from the upper end of the tube 21 at a sufficient distance to pierce a hole in it, a united fragile shipper-seal 37 is formed in the inlet tube 21.