DAMPING FORCE GENERATING MECHANISM, MANUFACTURING METHOD FOR DAMPING FORCE GENERATING MECHANISM, AND PRESSURE SHOCK ABSORBER

This damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; a valve that controls the flow of the liquid in the flow passage; a back-pressure control valve that controls the pressure in a back-pressure chamber that applies a back pressure to the valve by means of the inflow of the liquid; and a housing part that is formedinto a cylinder in which an opening end on one side is narrower than the opening end on the other side, that has the back-pressure chamber formed therein, and that houses at least the valve and the back-pressure control valve. 一种阻尼力产生机构，包括：流道形成部，该流道形成部形成液体流经的流道；阀，其控制液体在流道内的流动；背压控制阀，其控制背压室中的压力，该背压室利用液体的流入而向阀施加背压；以及容纳部，其形成为一侧开口端比另一侧开口端窄的筒状，具有其中形成的背压室，并且至少容纳阀和背压控制阀。