COLLECTOR TYPE WRITING IMPLEMENT

摘要

A direct liquid type collector writing implement, wherein a partition part capable of substantially shielding an ink tank from the outside air is provided in a collector, an auxiliary retaining groove is provided on the ink tank side of a gas-liquid exchange part at the partition part, a main retaining groove is provided forward of the gas-liquid exchange part at the partition part, and a lateral groove allowing ink to be induced into a narrow groove and an auxiliary retaining groove extending from the gas-liquid exchange part side to the ink tank side is provided in a wide groove communicating the gas-liquid exchange part at the auxiliary retaining groove portion with the ink tank, whereby, the implement is more effective if formed so as to meet the requirement of a relational expression is > ie> 0.05.is where the capacity of the auxiliary retaining groove is ie and the capacity of the main retaining groove is is or formed so as to be provided with an effective partition part groove.