| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid delivery apparatus which does not have a slide contact part, hardly being abraded, has a simple structure, and can realize an excellent liquid delivery function; and a pump dispenser equipped therewith. SOLUTION: A liquid in a space 13 formed by a bottom cup 11 having an inlet 11a and a flexible cup 12 having an outlet 12a is delivered through the outlet 12a by compressing the liquid by the deformation of the flexible cup 12. The bottom cup 11 has a semi-doughnut-like concave wall part 14. By deforming the flexible cup 12 to join it with the concave wall part 14, the liquid in the space formed by both the cups is delivered through the outlet 12a. |
