Provided is a writing instrument which includes a pen tip part; a coating liquid storage section; a cylindrical part so as to cover the coating liquid storage section, and fixed to the pen tip part; a valve mechanism disposed at a tip end portion of the coating liquid storage section; an operation member configured to open the valve mechanism and allow the coating liquid flowing out from the coating liquid storage section to flow toward a pen tip side via the valve mechanism; and a cylindrical elastic member connecting the valve mechanism with the operation member. The coating liquid storage section is relatively movable to the pen tip part in the axial direction, and the operation member is configured to open the valve mechanism in association with the relative movement of the coating liquid storage section to the pen tip part.

Provided is a writing instrument which includes a pen tip part; a coating liquid storage section; a cylindrical part so as to cover the coating liquid storage section, and fixed to the pen tip part; a valve mechanism disposed at a tip end portion of the coating liquid storage section; an operation member configured to open the valve mechanism and allow the coating liquid flowing out from the coating liquid storage section to flow toward a pen tip side via the valve mechanism; and a cylindrical elastic member connecting the valve mechanism with the operation member. The coating liquid storage section is relatively movable to the pen tip part in the axial direction, and the operation member is configured to open the valve mechanism in association with the relative movement of the coating liquid storage section to the pen tip part.