Patent ID: 7878604

Claim:
A damping force generating mechanism which generates a damping force accompanying a flow of working oil between a first oil chamber and a second oil chamber, comprising: a front valve body which allows working oil to flow from the first oil chamber to the second oil chamber under a predetermined resistance when lifted in an axial direction; a rear valve body which is disposed on the rear side of the front valve body coaxially therewith and allows working oil to flow from the second oil chamber to the first oil chamber under a predetermined resistance when lifted in the axial direction; a first pressure chamber which exerts an oil pressure on the front valve body towards the rear valve body; a second pressure chamber which exerts an oil pressure on the rear valve body towards the front valve body; an oil passage disposed in parallel with a center axis of the front valve body and the rear valve body to connect the first and the second pressure chambers as a part of a flow path from the second oil chamber to the first oil chamber; a check valve which allows working oil to flow from the oil passage into the first oil chamber while preventing working oil from flowing in a reverse direction; and a valve case which encloses the front valve body and the rear valve body, wherein the oil passage is formed through the valve case.