Patent ID: 9688092
Date: 2017-06-27
CPC Classifications: B43K

Claim:
1. A refill for a writing tool, comprising: an ink reservoir that stores liquid ink; a pen tip part including a writing part at a leading end thereof, the liquid ink being supplied from the ink reservoir to the writing part; an ink absorbing member that is connected to the ink reservoir and is configured to absorb and retain the liquid ink from the ink reservoir; a collector that is interposed entirely between the ink absorbing member and the pen tip part and holds the liquid ink from the ink absorbing member due to a capillary action, to thereby achieve a supply balance of the liquid ink in the ink absorbing member; an ink guiding member that is provided so as to penetrate through the collector and guides the liquid ink absorbed from the ink reservoir and retained by the ink absorbing member to the writing part of the pen tip part; and an inlet forming part that is formed in a circulation path that is placed between the ink reservoir and the ink absorbing member and is configured to circulate the liquid ink from the ink reservoir to the ink absorbing member, the inlet forming part defining a plurality of inlets in the circulation path, wherein the refill is inserted into a barrel that forms an exterior of the writing tool.