| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure accumulation type liquid spray unit capable of spraying the contents smoothly with a small pressure force. SOLUTION: In the pressure accumulation type liquid spray unit structured by the combination of a check valve 7 for opening a suction port 4a of a cylinder 4 only at the time of sucking a liquid, a hollow stem 8 slidably covering the outside of a piston 5 while keeping the liquid tight state and engaged with the end part of a piston guide 6, a pressing cap 9 adapted to the tip of the hollow stem 8 and having a nozzle 9a for spraying the liquid flowing out through a hollow stem inside space 8a to the outside, a 1st elastic member 10 for keeping a passage 5 for the piston in a closed state by pressing the piston guide 6 to the piston 5 and a 2nd elastic member 11 for pressing the piston 5 to the piston guide 6 to control the spray pressure of the contents, a stopper 12 for positioning the piston 5 before the spray of the contents and increasing the contact surface pressure of the piston 5 to the piston guide 6 to keep the closed state of the passage is provided inside the cylinder 4. |
