DAMPING VALVE FOR SHOCK ABSORBER

摘要

A damping valve includes a piston with a one-side disk and an other-side disk, a port configured to include through holes, a piston rod, and a nut. A plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface and the outer peripheral seat surface. Elastic deforming portions are formed between the through holes of the other-side disk. A clearance is formed between the inner peripheral seat surface of the one-side disk and that of the other-side disk in a state where the nut is not tightened and the outer peripheral seat surface of the one-side disk and that of the other-side disk are in contact. The elastic deforming portions of the other-side disk are strained and the respective inner peripheral seat surfaces come into contact in a state where the nut is tightened.

主权项

1. A damping valve for shock absorber, comprising:
a valve disk including a one-side disk and an other-side disk provided to be placed on the one-side disk and partitioning one chamber and another chamber; a port configured to include through holes formed in the one-side and other-side disks and allowing communication between the one and the other chambers; a shaft member penetrating through the valve disk; and a nut for fixing the valve disk to the shaft member by being threadably mounted on the tip of the shaft member; wherein: an annular inner peripheral seat surface and an annular outer peripheral seat surface formed at an outer side of the inner peripheral seat surface are respectively formed at corresponding positions of each mating surface of the one-side and other-side disks; the through hole is each open between each inner peripheral seat surface and each outer peripheral seat surface; a plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface of the other-side disk and the outer peripheral seat surface of the other-side disk; elastic deforming portions are formed between the through holes of the other-side disk; a clearance is formed between the inner peripheral seat surface of the one-side disk and that of the other-side disk in a state where the nut is not tightened and the outer peripheral seat surface of the one-side disk and that of the other-side disk are in contact; and the elastic deforming portions of the other-side disk are strained and the inner peripheral seat surface of the one-side disk and that of the other-side disk come into contact in a state where the nut is tightened.