| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressurization type ballpoint pen that includes a ballpoint pen refill capable of being replenished with ink. <P>SOLUTION: There is provided the pressurization type ballpoint pen such that an ink reservoir tube can be replenished with ink, and a pressurization mechanism is provided at a rear end of the ink reservoir tube and placed in operation by pressing a knock body arranged projecting from a barrel to pressurize the rear end of the ink reservoir tube. A wear resisting coating layer is provided on a surface of a ball and/or a surface of a bottom wall of a ball holding chamber. The pressurization mechanism comprises a sealing part which seals the rear end of the ink reservoir tube and a space chamber which communicates with the rear end of the ink reservoir tube and is closed, and compresses the space chamber as the knock body is moved forward to apply pressure to the rear end of the ink reservoir tube. <P>COPYRIGHT: (C)2013,JPO&INPIT |
