| 摘要 |
<p>The present invention relates to a frequency-sensitized shock absorber which comprises a cylinder filled with an operation fluid; and a piston rod having one end located inside the cylinder, and having the other end extended to the outside of the cylinder. The shock absorber comprises a main piston valve assembly (30) installed on one end of the piston rod, and operated in a state of dividing the inside of the cylinder into a tensile chamber (11) and a compression chamber (12) to generate a damping force changing upon a moving speed; and an auxiliary piston valve assembly (100) moving with the main piston valve assembly, and generating a damping force changing upon frequency. The auxiliary piston valve assembly includes a spool unit (120) opening and closing a connection flow path connecting the tensile chamber and the compression chamber, while vertically moving in the housing (110); and upper and lower support members (130, 140) supporting the spool unit. The upper and the lower support members includes protrusions (131, 141) protruding toward the spool unit respectively to close the connection flow path by the protrusions of the upper and lower support members and the spool unit contacting upon movement of the spool unit.</p> |
