| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid type writing utensil which allows a liquid ink to flow into a pen body by opening and closing of a valve mechanism to write, does not generate ink leakage, has a simple composition, and can be obtained at low cost. <P>SOLUTION: The liquid type writing utensil includes a first ink storage 3 in a body 1, a second ink storage 10 communicating with the first ink storage 3 via a first opening 9, and an air storage 12 communicating with the second ink storage 10 via a second opening 11. A valve body 13 having a first valve 16 and a second valve 17 is housed in the second ink storage 10, and a pen body holder 14 is housed in the air storage 12. While writing is not performed, the second opening 11 is closed by the second valve 17 not to allow an ink in the second ink storage 10 to flow. While writing is performed, the second opening 11 is closed by an air valve 37 arranged in the pen body holder 14 not to allow an air in the air storage 12 to flow into the second ink storage 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
