F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/95
F16F 9/19 (2006.01) F16F 9/096 (2006.01) F16F 9/44 (2006.01)
Patent
CA 1152116
ABSTRACT OF THE DISCLOSURE A hydraulic shock absorber comprising a cylinder containing a working oil; a piston received in a slidable manner in said cylinder and formed with a communication pas- sage for generating a damping force, a piston rod protruding from one end of the cylinder; a valve chamber formed at the other end of the cylinder in fluid communication with the inside of the cylinder; an oil tank having an oil port for communication with the valve chamber; a disc-shaped valve arranged in the valve chamber and formed with a plurality of oil holes which have different effective areas and which can selectively be brought to face the oil port which communi- cates with the valve chamber and oil tank when said disc- shaped valve is turned. The disc-shaped valve is preferably mounted slidably but non-rotatably upon a valve stem. A coil spring is preferably provided to urge the disc-shaped valve against the valve chamber. At the same-time, the valve stem has its one end protruding to the outside. and a turn knob is mounted on the protruding end of the valve stem for turning the disc-shaped valve. The damping force under compression can be changed without difficulty by turning the turn knob.
370120
Kirby Eades Gale Baker
Showa Manufacturing Co. Ltd.
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