Hydraulic damping device

A hydraulic damping device comprising:

• a cylinder storing fluid;
• a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in an axial direction;
• a valve having elasticity, the valve being configured to open and close the channel in the piston;
• a movement permitting part configured to permit the valve to be displaced as a whole between a contact position and a spaced position in the axial direction, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston;
• a pressing part having elasticity, the pressing part being configured to press the valve against the piston;
• and
• a restricting part separate from the pressing part and the movement permitting part, the restricting part being configured to annularly contact the valve at a portion thereof radially inside from the channel at the spaced position to thereby restrict the valve from being displaced farther from the spaced position relative to the piston, wherein
• the pressing part includes a plurality of protrusions extending radially outward, and
• the plurality of protrusions include a first protrusion and a second protrusion, the first protrusion protruding toward the valve, the second protrusion protruding in a direction away from the valve.