Shiyapu pencil with tip pipe protection adjustment mechanism

摘要

(57) In the case of [summary] [purpose] non-use, the outer covering portion that can accommodate the sharp tip pipe inside is provided, and also dropped a sharp pencil, folding, does not give cause such damage, and and to provide an improved pencil which can be freely adjust the length of projection from the outer covering portion of the sharp tip pipe. [Configuration] sharp tip pipe, is placed in a fixed mechanical pencil, which is fixed to the sharp tip cap, to the sharp tip cap and sharp body axis, the central axis is the same position, a shape and cover from the outside, the line end was tapered, the outer coating portion is provided, the tip pipe protection based on the engaged as adjustable either or both the mutual longitudinal position of the outer cover portion and the main body shaft or intermediate screw Sharp pencil with adjustment mechanism