20100086343 | REGULATOR STRUCTURE OF CARTRIDGE ROLLER BALL PEN - A regulator structure of a cartridge roller ball pen is provided. The regulator structure is disposed within a front shell. A through hole is disposed in the center of the regulator for the disposal of a cotton core. A plurality of buffer regions formed of guide vanes is disposed on the surface of the regulator. A guide gap is disposed on an end of the regulator. Additionally, an ink discharge hole is disposed on the surface of the regulator. The ink discharge hole is communicated with the through hole. Thus, ink that expanded in volume due to heat is ink discharge buffered, and the ink is guided back into a cartridge ink box after the temperature is restored, so as to prevent the pollution resulted from ink ejected from the front end of the front shell, and to reduce the ink waste. | 04-08-2010 |