| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pump dispenser for causing slight abrasion because of not having a slidingly contacted portion and having a simple structure. <P>SOLUTION: There is provided the pump dispenser comprising a pump means for sucking up a fluid held in a container 2 through an introduction flow path S1 and discharging the fluid outside through a discharge flow path S3, the pump dispenser 1 being mounted on the container 2, wherein the pump means includes: a pump portion 4b for generating a positive pressure and a negative pressure by elastic deformation and recoverable deformation; a first check valve 5 that is disposed at a boundary between the introduction flow path S1 and a pump space S2 of the pump portion 4b; and a second check valve 6 that is disposed at a boundary between the pump space S2 of the pump portion 4b and the discharge flow path S3, and wherein the pump portion 4b is pressed to cause the elastic deformation and the recoverable deformation. <P>COPYRIGHT: (C)2007,JPO&INPIT |
