| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball-point pen capable of reducing the manufacturing cost by attempting to reduce the number of parts.SOLUTION: In this ball-point pen 1, a shaft cylinder 2 consisting of a shaft cylinder body part 6, a lid part 10 and a hinge part H, and a tail stopper part 11 provided on the back end of the lid part 10 are integrally molded by injection molding of a resin, and as the lid part 10 integrally molded as a part of the shaft cylinder 2 enables opening/closing of an opening part (an inner core storing part) 2b communicating with an inner core inserting hole 2a, exchanging the inner core 3 from the shaft cylinder 2 is possible. By utilizing the shaft cylinder 2 in which the lid part 10 and the shaft cylinder body part 6 are connected by integral molding without making the lid part 10 and the shaft cylinder body part 6 into separated parts, it is possible to attempt to reduce the number of the parts and to decrease the manufacturing cost, and furthermore, as the lid part 10 and the shaft cylinder body part 6 are connected with each other, the parts are not scattered and assembling workability is improved. |
