| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify the assembly procedure of a pump mechanism having the back suction function, to reduce the cost of the entire mechanism, and to reliably ensure the back suction function. <P>SOLUTION: In a spout 1 which is moved downwardly to reduce the volume of a storage space area B by the liquid content dispensing operation of a user and moved upwardly to increase the volume of the storage space area B by the returning action of a bellows member 6, a dispense valve member 3 which is relatively moved upwardly to open dispense valve operating units (1d, 3a) and relatively moved downwardly to close the dispense valve operating unit is frictionally engaged with an inner raising part 5c on the container body side or the outer circumferential surface of the upper cylindrical part of a suction valve member 4, and the spout 1 is moved upwardly while the dispense valve operating units is opened in the initial stage when releasing the operation, and liquid content remaining in a passage part 1a is sucked in the storage space area B. <P>COPYRIGHT: (C)2011,JPO&INPIT |
