| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump which enables the assembly position of a cylinder to a mounting cap to be determined by easy operation and has a simple structure.SOLUTION: The circumferential edge of a flange 20 is engaged with the circumferential wall 10 of a mounting cap so that the flange 20 and the top wall 11 of the mounting cap can be mutually and proximately moved and mutually turned while a clearance is made between them, and a slidable bend plate 21 on the surface of the other side projects at either predetermined position of the flange 20 or the top wall 11 of the mounting cap, and then an engagement recess 15 is recessed at the other predetermined position of either of the flange 20 or the top wall 11 of the mounting cap. The flange 20 fitted within a mounting cap A1 is turned against the mounting cap A1 and the bend plate 21 is engaged within the engagement recess 15, thereby permitting mutual positioning of the mounting cap A1 and the cylinder A2. |
