| 摘要 |
PROBLEM TO BE SOLVED: To provide easily good transparency by providing a slide section for the inside of an ink tank on a movable section with a valve mechanism and sliding the slide section on the inner face of the ink tank linked with the movable component. SOLUTION: An operation lever 3 is operated by operating an operation section 2, and a valve 4a connected with the end of the operation lever 3 is moved, and a clearance is formed between the valve and a valve seat 4b almost closed by a coil spring 7, and ink is fed to a pen point 6 through an ink occlusion body 5. An ink tank 1 is molded by transparent polypropylene resin, and an oily pigment ink containing alcohol as a prime agent is stored in the ink tank 1. A slide section 3a extending in the longitudinal direction while being brought into contact slidingly with the inner face of the ink tank 1 is formed on the operation bar 2, and the slide section 3a is brought into contact slidingly with the inner face of the ink tank 1 to remove ink on the slide section. The inside of the ink tank 1 is visible from outside to check the remaining amount of ink. |
