| 摘要 |
A valve structure for use in a damper has a cylinder, a piston rod axially movably disposed in the cylinder, a piston or dividing member mounted on an end of the piston rod in the cylinder and dividing an interior space of the cylinder into two oil chambers one on each side of the dividing member, the dividing member having a valve seat, and a circular resilient valve assembly supported at a circumferential edge thereof on the dividing member and having a free end seatable on the valve seat. The circular resilient valve assembly includes a circular auxiliary resilient valve, a circular intermediate resilient sheet, and a circular main resilient valve which have identical inside and outside diameters, the circular auxiliary resilient valve, the circular intermediate resilient sheet, and the circular main resilient valve being stacked in the order named successively from the valve seat. The circular intermediate resilient sheet has at least one recess defined therein and opening at a free end thereof for allowing the circular auxiliary resilient valve to flex. The circular resilient valve assembly can flex depending on a differential pressure between the two oil chambers to produce a damping oil path for applying a damping force against axial movement of the piston rod with respect to the cylinder.
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