| 摘要 |
PURPOSE:To prevent excessive loading in the latter half of a stroke by making sufficient use of the characteristic of an air cushion in the first half of the stroke. CONSTITUTION:A cylindrical inner tube 2 is inserted into the opening of an outer tube 1 to be easily slided. The inside of the inner tube 2 is divided into two chambers A and B by a valve body 14; the chamber A is filled with air, and the chamber B is filled with oil 16 and air. In the central part of a piston 6, a push piston 17 is provided to face to the valve body 14 at its top as keeping a set distance L between its top and the valve body 14. |
