Liquid applicator with slidable pump mechanism

摘要

A writing instrument or an applicator of the invention is constructed of: a shaft sleeve main body having an application liquid reservoir therein; and an application member provided in a front end of the shaft sleeve main body to receive a liquid supplied from the liquid reservoir. The shaft sleeve main body comprises: an ink conduit member provided with a large-diameter piston portion, and a rod element which projects forward from the piston portion and is smaller in diameter than the piston portion while provided with a communication-hole; a cylinder member for slidably receiving the ink conduit member means for moving the cylinder member along the axial line of the shaft sleeve main body; means for biasing both the cylinder member and the ink conduit member so as to be separated from each other; and a hole for the application member, connected to a front end portion of said ink conduit member, which front end portion projects from the cylinder member.