| 摘要 |
A writing tool including: a cylindrical shell containing ink of a solid-liquid separation type and a stirring piece; an ink flow-out control mechanism disposed in the cylindrical shell, which includes a valve main body having an ink introducing port around the peripheral surface thereof, and a valve which is contained in the valve main body in such a manner as to freely advance and retreat and which is biased in the valve closing direction by a coil spring; and a writing tool mounted to the cylindrical shell through the ink flow-out control mechanism; wherein an enclosed ink containing cylindrical body having a suitable length and diameter is disposed in the cylindrical shell; the ink and the stirring piece are contained in the ink containing cylindrical body; and an ink flow-out port for supplying the ink from the ink containing cylindrical body into an ink introducing port of the valve main body is formed at a suitable portion of the ink containing cylindrical body.
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