| 摘要 |
<p>Disclosed is a length-changeable ball-point pen including a penholder for holding a refill and a cap. The penholder comprises a front penholder for receiving the refill and a rear penholder out of and into which the front penholder is telescopically extended and retracted. A writing tip of the refill is exposed to the outside through a front end of the front penholder. A head member, which is formed on a circumferential outer surface thereof with an engagement protrusion, is fastened to the front end of the front penholder. A closure member is locked to and closes a rear end of the rear penholder. A locking projection which is to be snap-engaged with the engagement protrusion of the head member is formed on a circumferential inner surface of the cap.</p> |
