| 摘要 |
PROBLEM TO BE SOLVED: To provide a knock type writing implement which uses a ball-point pen using ink apt to break in initial writing and mainly a ball-point pen for correction of an error in writing or the like which does not need stirring and is free of a trouble of pressing the lateral side of a vessel. SOLUTION: In regard to a refill having a tip of a ball-point pen at the fore end and an ink accommodating tube in the rear and having a pumping type pressurizing mechanism part provided at the rear end of the ink accommodating tube, and in the knock type writing implement mounting the refill and enabling engagement thereof in states wherein the fore end part of the tip is projected and withdrawn from the fore end, a first knocking means which engages the refill in the state of the fore end of the tip being projected and advances and compresses the pressurizing mechanism part with a small stroke, and a second knocking means which advances and compresses it with a large stroke, are provided so that the rear end of the ink be pressurized in two stages and that the flowability of the ink to the tip side be thereby supported. |
