| 摘要 |
PROBLEM TO BE SOLVED: To feed an ink to the tip end of a nib in a short time by a method wherein for a part which is fitted on a pen core holder, and a part which introduces the ink, a space part at the center of a relay core communicates with the outside air, and at other parts, it is constituted in such a manner that there are two parts or more where the central part does not communicate with the outside air. SOLUTION: At the upper end of a valve rod of a valve mechanism, a relay core 3 having a radial groove which does not have a central axis inside, is arranged. At the thin opening end of a pen core holder 1, a pen core is exposed, and on the rear side, the relay core 3 which is press-fitted and fixed to the pen core holder 1 by the spring force of the relay core 3, is provided, and on the rear side, the valve mechanism is provided. A nib 2 is pressed to a paper surface, the valve mechanism is released, and an ink is introduced. The ink moves to the inside of the relay core from a part where the center of the relay core 3 communicates with the outside air, and moves into the pen core holder 1 through a transmission groove, and flows out to the nib from the tip end of the relay core. There are parts where the center of the relay core 3 does not communicate with the outside air at two locations or more where not being fitted on the pen core holder 1. |
