| 摘要 |
<p>PROBLEM TO BE SOLVED: To allow advantageous for an improvement in durability of a diaphragm even if an using period is extended upto long period. SOLUTION: An accumulator is provided with a shell body 1 having a hollow chamber 10, and a diaphragm 5 for partitioning the hollow chamber 10 into a gas chamber 11 and a liquid chamber 12. The shell body 1 is composed of a first shell body 2 of a gas chamber 11 side, and a second shell body 3 of a liquid chamber 12 side. The first shell body 2 is composed of a base substance 20 serving metal as a base material, and a resin swelled out part 22 integratedly arranged with the base substance 20 so as to swell-out it toward the gas chamber 11.</p> |
