| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball-point pen tip in which a ball comes into close-contact with the inner wall surface of the tip end of the ball-point pen tip in nonuse, which is excellent in ink circulation property by applying a stable pressing force to the ball.SOLUTION: In the ball-point pen tip, a cylinder body opened at both ends is disposed so as to move the rear of the ball and an ink circulation hole forward and backward, while the cylinder body presses the ball to the inner wall surface of the tip end by a coil spring disposed at the rear of the cylinder body, and a straight part extending to the ball is provided at the tip end of the coil spring. The straight part is located in the cylinder body and the head of the straight part comes into contact with the ball, to press the ball to the inner wall surface of the tip end. |
