To provide a hydraulic cylinder allowing a moved body to be smoothly and continuously moved up by hydraulic pressure without causing unstable shaking as well as preventing the moved body from being unnecessarily rotated while avoiding the interruption of the hydraulic pressure during up-and-down movement of a control lever.
The hydraulic cylinder comprises a cap part from an upper portion of which a compression rod for forcibly generating hydraulic pressure, an operation rod connected and fixed to the moved body for moving up, stopping and moving down the moved body and a control rod for controlling the operation rod to be moved up, stopped and moved down are protruded, a barrel part consisting of a plurality of cylinder and piston structures connected to the compression rod, the operation rod and the control rod for performing hydraulic operation in a barrel case, and a base part consisting of a flow control part joined to a lower portion of the barrel part and having a predetermined flow path formed inside for controlling a flow rate in the flow path.
| JPH08182560 | HAIRDRESSING CHAIR |
| WO/2014/027774 | SHAMPOO CHAIR HAVING SEAT |
HWANG MYUNG-YONG
LEE KEUN-JONG
HWANG MYUNG-YONG
LEE KEUN-JONG
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