| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder device which can save energy and can be formed into a compact size compared to conventional cylinder devices sufficiently, and needs smaller numbers of components of an accumulator needs no high processing accuracy and can be formed at low cost, especially, it can contain pressure for a long time, and maintain stable pressure even to change of temperature of surrounding environment.SOLUTION: The cylinder device comprises:a cylinder body including a piston moving toward an axial direction by pressure medium;and hydraulic accumulation means for relaxing pressure reduction caused by leakage of the pressure medium contained in the cylinder body. The hydraulic accumulation means are disposed in a fixed state, being fitted to each of concavities provided in a fluid pressure chamber in the cylinder body. |
