| 摘要 |
PROBLEM TO BE SOLVED: To control as much as possible the generation of blurrings of handwriting generated by the shortage of ink jet in writing by bringing the tip of an ink intermediate refill into contact with the back of a wall section and positioning the ink intermediate refill for a ball point tip. SOLUTION: An ink intermediate refill 3 is brought into contact with a contact section 2g of a ball point pen tip to determine its fixing position. The tip of the ink intermediate refill 3 is formed into the conical shape by the whetstone grinding to bring the top of a conical section into contact with the contact section 2g and therein to form a periphery-shaped space 4 between a ridge section 3a of the conical section and a wall section 2e of the ball point pen tip. The space is formed basically for controlling the blocking of an ink passage generated by bringing the tip of an ink intermediate refill 3 forming a fiber bundle into contact with an opening of an ink through-hole 2d to be plunged and clamped therein. The space 4 thus formed works as an ink storage section at the time of writing, and the fresh handwriting of the rich ink jet amount can be provided. |
