| 摘要 |
The present invention relates to an ink cartridge for a writing instrument and, more particularly, to an ink cartridge for a writing instrument including the handle part of an injector-shaped cartridge, which is used by filling ink therein, to be able to be detached, thereby enabling the filling of more ink. As a technical tool for achieving the purpose, the present invention comprises: a case; a writing instrument point arranged on one end of the case; and a cartridge mounted in the case to supply ink to the writing instrument point. The cartridge comprises: a cylinder part having a cavity inside; an outlet arranged on one end of the cylinder part to discharge ink to be supplied to the writing instrument point; a piston part having a structure of reciprocating inside the cylinder part; and a handle part arranged at the other side of the piston part, wherein the handle part can be arranged to be able to be attached to and detached from the piston part. |
