| 摘要 |
本发明提供一种写字具，该写字具虽是使用藉由推压栓体使其开放的交换式墨水匣，仍可抑制抽出使用完毕之墨水匣容器时容易发生之不小心的墨水外漏，而且墨水匣交换性高、便利性佳。;本发明的写字具具备：由前端开口且后端封闭的有底圆筒状容器及嵌装在前述容器之开口部内周面的栓体所构成的交换式墨水匣；以及插入前述容器之开口部内并且将栓体向后方推压，藉此使墨水匣开栓的突起部，在推压开栓时将前述突起部与栓体嵌合，并且在墨水匣交换时将前述突起部与栓体的嵌合解除，且栓体再度卡止在容器开口部。; the writing implement of this invention is capable of suppressing accidental leakage of ink that easily occurs when a used ink cartridge is pulled out, even if the writing implement is the type that uses an exchangeable ink cartridge having a plug which is caused to open by pressing. The writing implement is provided with an exchangeable ink cartridge and a protrusion; the exchangeable ink cartilage is constituted by a cylindrical sleeve having an open front end and a closed rear end and a plug fitted in an inner peripheral surface of the open front end of the sleeve; the ink cartridge is caused to open by inserting the protrusion into the open front end of the sleeve to push the plug rearwards. When the ink cartridge is caused to open, the protrusion is caused to fit in the plug, and when the ink cartridge is replaced, the protrusion is released from the plug and the plug is allowed to fit in the open front end of the sleeve again. |
