| 摘要 |
PURPOSE:To improve the working property for processing and assembling, and shorten the basic length of an operating rod by constituting a piston rod from two fitting members and providing a shutter as a valve body at the fitting position of the fitting members. CONSTITUTION:A piston rod 3 is constituted by two fitting members 4 and 5. A chamber C is formed at the fitting position of these members 4 and 5. Two oil passages 13 and 15 are formed between the chamber C and two cylinder chambers A and B. A shutter 17 which carries out the throttling adjustment between two oil passages, is provided in the chamber C. An operating rod 18 which can operate the shutter 17 from the outside is inserted through the piston rod 3. |
