| 摘要 |
PROBLEM TO BE SOLVED: To provide a suction type liquid injection pump device and a seal member used therefor, usable at low cost, by diverting pump means of a general purpose constitution as pump means for an airless container, without applying special remodeling.SOLUTION: The suction type liquid injection pump device is formed by having an annular ring-shaped flange part opposed to an upper surface of the tip whole periphery of an installation part and a cylindrical part suspended from the inner edge of an annular ring of the flange part, between the pump means and the installation part of the suction type liquid injection pump device constituted for contracting (reducing) at least a liquid storage part by the realization of internal negative pressure when sucking-injecting liquid in a liquid container, and is constituted so that an inner peripheral surface of the cylindrical part can be brought into close contact in a fluid-tight/airtight state with an outer peripheral surface of a cylinder part, and can block up an intake hole provided in the cylinder part, and the seal member of a constitution capable of being brought into close contact in the fluid-tight/airtight state, is interposed in the inner peripheral surface of the installation part. |
