| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic device capable of performing stable hydraulic control, by easily discharging air. <P>SOLUTION: This hydraulic device 100 includes a piston 20 having a discharge hole 21, a lip 50 for covering a part of the piston 20, and a check ball 70 arranged between the piston 20 and the lip 50 and sealing the discharge hole 21. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
