| 摘要 |
PURPOSE: A pencil protective cover is provided to prevent the damage of a pencil lead by fixing the pencil lead on an elastic jamming member on a tip end unit of the cover. CONSTITUTION: A pencil protective cover(20) for putting on a pencil body(10) comprises the following: propeller insertion holes formed on the upper side of the pencil protective cover including a right inserting hole(30) and a left inserting hole(40); and a right propeller(50) and a left propeller(60) inserted into each inserting hole for flying the pencil body by rubbing the pencil body with two hands of a user. Both propellers are capable of removing from the upper side of the pencil protective cover to protect a pencil lead. |
