Composite pen tip

摘要

A composite pen tip that comprises a core member inserted through a tubular casing to form an axial ink flow channel between the inner surface of the tubular casing and the core member. The core member is made of a material more wear-resistant than the tubular casing and the front ends of the core member and tubular casing are substantially flush with each other to form a level writing face. The tubular casing and the core member are curved in substantially the same form in at least one area in the axial direction and in substantially the same area so that said core member contacts the inner surface of said casing in the location of said curving and frictional contact thereat maintains said core front casing but permits said core to slide backward as said casing wears.