| 摘要 |
A tip mechanism for a knock type ballpoint pen with an ink container (12) includes a tip body (10) having an inner ink-guide hole (15) and top and bottom end portions. The top end portion of the tip body is fitted within the ink container. A ball receptor is formed at the bottom end portion of the tip body. A ball (30) is disposed in the ball receptor to be rotated. The ball (30) is partially exposed to the outside. An elastic member (20) is inserted into the ink-guide hole of the tip body. The elastic member has a ball pressing part (25) for pressing the ball toward the outside. The ball pressing part (25) is formed with a curved shape. The curved shape of the ball pressing part is processed by bending the ball pressing part at a predetermined angle. <IMAGE> |
