| 摘要 |
PROBLEM TO BE SOLVED: To provide an error correcting ball pen, which neither develops breakage of ink, nor dispenses with its agitation, nor raises trouble for pressing the side surface of a container. SOLUTION: In this ball pen, a plug 12 with a vent hole 12d is fixed to the rear end of an ink housing tube 8. At the same time, a sealing part 13 is provided on the outer peripheral part of the plug. An elastic member 15 is provided between the rear end of the inner hole of a tail plug 14 fixed to the rear end of the barrel and the rear end of the plug so as to energize a ball pen refill to ahead of the barrel in order to press air in the rear end hole of the ink housing tube through the sliding of the sealing part provided on the outer peripheral part of the plug under the state coming in close contact with the inner peripheral part of the tail plug by the retreating actuation of the ball pen refill so as to pressurize a follower 10, which is arranged at the rear end of an ink 9 so as to prevent the ink from evaporating and follow up to the ink together with the consumption of the ink, in order to be constituted to help the flowability to the tip side of the ink. |
