| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid pressure cylinder capable of improving toughness to an inclination at the time of the maximum stroke of the piston rod and simplifying piping. SOLUTION: The fluid pressure (hydraulic) cylinder 10 includes a main piston 20 stored inside a cylinder tube 12, the piston rods 22 extended from both sides of the main piston 20, first and second sub-pistons 24a, 24b arranged on both sides of the main piston 20, and first to fourth oil chambers. The piston rods 22 are located at a neutral position N when the same hydraulic pressure is supplied to the first and second oil chambers 26a, 26b through first and second supply and discharge ports s1, s2, and can be moved at an advancing position D advanced from the neutral position N or a moving-back position R moved back from the neutral position N when the hydraulic pressure (fluid pressure) is supplied to the third and fourth oil chambers 26c, 26d. COPYRIGHT: (C)2011,JPO&INPIT
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