A Stamping Writing Materials Having Count Ability and Count Method Using Thereof

摘要

PURPOSE: A writing instrument with a counting function is provided to fill in correct answer by one touch and to quickly check correct answer. CONSTITUTION: A writing instrument with a counting function comprises: an ink storage tank having an exterior of a polygonal or cylindrical form and containing ink; an ink feeding unit which is coupled at the lower portion of the ink storage tank and temporarily stores the ink; an ink absorption part which is inserted to the ink feeding unit and absorbs the ink; an ink stamp which is formed at the lower end of the ink absorption part and stamps ink on the paper; a pressure sensor for counting which is inserted between the ink absorption part and cover member(100) and check the number of stamp use.