| 摘要 |
PURPOSE:To facilitate to fix damping while compressing process of hydraulic shock absorber at desired position while assembly and to make it adjustable at desired position at desired moment. CONSTITUTION:Hydraulic shock absorber comprises a tubular outer tube 10w/ bottom, an inner tube 20 inserted in the outer tube 10 in a slidable manner, a 1st hollow rod 30 also inserted in the outer tube 10 and is fixed to it at its bottom, and a working piston 40 which is fixed to the rear end of the inner tube 20. A 2nd hollow rod 50 is set in the 1st hollow rod slidably for a fixed range, and a one- way valve 60 is formed at inside of the rear end of the rod 30 or the rear end of the rod 50, to lead working oil in oil passage P formed between rods 30 and 50 to a 2nd working oil room R2 inside the rod 50. Elasticity of a spring 63 of the one- way valve 60 is made adjustable with an adjustable bolt 73 screwed in a lever 71. |
