COMPOSITE WRITING-MATERIALS

摘要

This writing tool combines a propelling pencil and a ball-point pen with an improvement of the push button. The tool has within its rear barrel (2) a cam member (9) for pushing the rear ends of the lead holder (4) and the ball point holder (5) with a push botton (13). Turning of barrel (2) results for the cam member (9) to move in the axial direction the lead (4) and the ball point relative to each other for use. But the push botton pops out knocking only when the lead is pushed out.