| 摘要 |
PURPOSE:To maintain a constant damping force over the whole range of a high piston speed by mounting a disc valve composed of a Belleville spring in a preliminarily deformed state so as to keep a constant load during deformation. CONSTITUTION:Orifice plates 12, 12' and disc valves 13, 13' are composed of a Belleville spring, respectively. Slits 12a, 12'a are formed on the inner periphery end of said orifice plates 12, 12'. These orifice plates 12, 12' and disc valves 13, 13' are mounted on a valve 8 upon condition that they are preliminarily deformed by means of a spring 11 through a retainer 10 so as to keep a constant load during their deformation. In this case, it is desirable that the free height H1, H2 of said orifice plate 12 and said disc valve 13 are about 2<1/2> times thickness t1, t2, respectively. |
