Damper, Damper Manufacturing Method, Valve, And Valve Manufacturing Method

Abstract: This damper comprises: a cylinder; a piston provided in the cylinder; a rod one end of which is connected to the piston and the other end of which extends out of the cylinder; and a body valve that defines two chambers in the cylinder. The body valve includes: a valve body that has a working fluid passageway; at least one disc-shaped valve member that opens and closes the working fluid passageway; a regulating member which is provided on the side of the valve member opposite from the valve body and is thicker than the valve member; and a pin member which is disposed around an interior perimeter of the valve member and the regulating member, and has a flange at one end and a crimping portion at the other end thereof, the pin member integrating the valve body, the valve member, and the regulating member in an axially aligned manner. The outer diameter of an opposite portion of the pin member opposite the regulating member is smaller than that of portions of the pin member other than the opposite portion in the axial direction.

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