Patent ID: 7578417

Claim:
An airless type cosmetic container with quantified contents discharging, contents leakage preventing and contents deterioration preventing functions, the airless type cosmetic container comprising a nozzle button, the nozzle button having a nozzle hole, through which contents are discharged, the nozzle hole being provided with a step part formed at the inner surface thereof, a piston shaft connection part disposed in the central part thereof, and a second valve rod support rib also disposed in the central part thereof, a contents receiving vessel, in the upper part of which the nozzle button is fitted, and a piston shaft fixedly fitted in the piston shaft connection part, the piston shaft having a contents communication hole defined therein and a pumping piston integrally formed at the lower part thereof, a housing member, the housing member having a cylinder, in which the pumping piston is fitted, a contents sealing rib formed at the circumferential wall of the lower part of the cylinder, a plurality of vertical reinforcing ribs formed at the outer circumferential wall of the cylinder, and a contents introduction hole formed in the bottom surface of the cylinder, a second valve rod fitted in the contents communication hole of the piston shaft, the second valve rod having a tapered opening and closing part formed at the upper part thereof, and a nozzle button return spring disposed between the housing member and the nozzle button, wherein the airless type cosmetic container further comprises a quantified contents discharging support protrusion disposed at the inner surface of the lower part of the contents communication hole of the piston shaft, a first valve member location part disposed at the inner bottom surface of the cylinder of the housing member, a first valve member fixed to the first valve member location part, the first valve member being integrally formed with a contents opening and closing member having a support surface formed at the upper part thereof and a vertical guide rod having friction ribs protruding from the circumferential wall of the upper part thereof in opposite directions, a fitting part disposed at the lower part of the second valve rod, the fitting part is fitted in the first valve member in such a manner that the fitting part cannot be separated from the first valve member, a catching part disposed at the lower part of the fitting part, a guide hole, in which the vertical guide rod is fitted, and a nozzle hole opening and closing member fitted in the nozzle hole of the nozzle button, the nozzle hole opening and closing member having a contents opening and closing function.