| 摘要 |
PROBLEM TO BE SOLVED: To provide a bellows pump capable of varying a discharge amount of liquid in a normal time and in an emergency. SOLUTION: In this bellows pump, a working shaft 8 is provided in a bellows 6, an eccentric shaft 11 is provided in a driving shaft 10a of a driving means 10, the working shaft 8 is engaged with the eccentric shaft 11, and an eccentric rotational motion of the eccentric shaft 11 is converted into a linear motion of the working shaft 8 for expanding and contracting the bellows 6. It is characterized in that the eccentric shaft 11 is formed by varying an eccentric amount along an axial direction of the driving shaft 10a and it is slidably composed along the axial direction of the driving shaft 10a. |
