Mechanical pencil equipped with lead-storing cartridge.

摘要

A mechanical pencil is constructed of (a) a decorative barrel to be held by a user; (b) a lead-feeding mechanism disposed within the decorative barrel; (c) a lead guide connected to the lead-feeding mechanism; (d) a lead-containing cartridge held detachably in the decorative barrel. The mechanical pencil according to the present invention can be continuously used by simply replacing a used-up cartridge with a fresh cartridge containing a plurality of writing leads. Thus, it is unnecessary, in contrast to conventional mechanical pencils, to insert a fresh supply of writing leads one by one into the mechanical pencil. Since a user is not required to touch writing leads directly, his hands are not smeared.