主权项 |
1. A compact ballpoint pen including a button, the button comprising a first bar having a latch protrusion formed thereon and a second bar having a cap attached on one end thereof and the first bar and the second bar being coupled to each other in a V form, in which an ink cartridge comes out of a case hole when the cap is pushed and the ballpoint pen ink cartridge retreats into the case hole when the latch protrusion is pushed,
wherein the first bar and the second bar are arranged close to a surface of a ballpoint pen case, forming an empty space, through which an end portion of the ballpoint pen ink cartridge, opposite to a nib of the ballpoint pen ink cartridge, reaches the cap. |