| 摘要 |
PURPOSE: A propelling pencil lead case preventing leads from being spilt, and raising the leads automatically is provided to facilitate the use of propelling pencil lead case. CONSTITUTION: A propelling pencil lead case preventing leads from being split and raising the leads automatically is able to be used by installing a lever in the lead case. A lead is lifted up by a lever principle, when one side is pressed by delivering a pressing force to a pressuring unit to the lower side and the other side is raised up. The lead case raises a lead until a user can pick out the lead by operating a lever unit when the middle part goes down. The pressuring unit comprises to re-raise the middle part by the operation of a compression unit blocking an entrance. |
