Damping force adjusting device for dampers
AssigneeHKS Co., Ltd.
InventorKoukichi Takahashi
Life of this patent
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Abstract
A main piston which divides the inside of a cylinder into chambers A and B has oil passages on the expanding side formed therethrough, and is mounted with a damping valve on the expanding side capable of closing the oil passages. The damping valve on the expanding side deforms in a deflecting manner to produce a damping force. A disc spring is disposed behind the damping valve on the expanding side to exert a biasing force on the rear face thereof. The disc spring is linked in an actuating manner to an operating rod mounted through a piston rod, thereby allowing a change of the biasing force exerted on the damping valve on the expanding side.
Claims4
A damping force adjusting device for dampers, comprising:
- a cylinder capable of being filled with working fluid;
- a piston disposed in said cylinder in a slidable manner to divide the inside of said cylinder into two working chambers and which has passages formed therethrough for connecting the working chambers to each other;
- damping valves on said piston which can close said passages and which can produce a damping force as a result of being deformed in a deflecting manner by the working fluid flowing through said passages;
- a piston rod fixed to said piston and can project outward from said cylinder;
- a disc spring disposed behind said damping valve to exert a biasing force on the rear face thereof;
- and
- an adjusting rod mounted through said piston rod and linked to said disc spring in an actuating manner to allow a change of the biasing force exerted on said damping valve by said disc spring.
Dependencies are inferred from the claim text.