| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for sucking and dispensing liquid with high sucking/dispensing force and capable of fully using substantially all quantity of filled liquid and a suction type liquid dispensing pump apparatus. <P>SOLUTION: The suction type liquid dispensing pump apparatus has a flexible liquid container 2, a pump unit 3 for sucking and dispensing liquid with which the liquid container 2 is filled, a suction pipe 4 for sucking and dispensing the liquid by communicating the liquid container to the inside and the outside by being connected to the pump unit 3 and being inserted into the liquid container, is constituted the liquid container 2 constricts (reduces) due to inside negative pressure when sucking and dispensing the liquid in the liquid container, has an upper side suction hole 41 and a lower side suction hole 42 in a side wall part near the upper end and in a side wall part near the lower end of the suction pipe 4 respectively, first the upper side suction hole 41 begins to suck and dispense upward, the lower side suction hole 42 begins to suck and dispense downward after the inside wall of the liquid container constricting due to upward sucking and dispensing closes the upper suction hole 41, liquid residual quantity is reduced minimum as much as possible when the sucking and dispensing of the liquid in the liquid container 2 reaches the limit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
