WRITING UTENSIL OF INK EXHAUSTION DETECTION TYPE

摘要

PPROBLEM TO BE SOLVED: To provide a writing utensil of ink exhaustion detection type which can certainly display the exhaustion sign of an ink, allows a user to visually recognize the part becoming a shady side in a writing direction of a barrel or a writing section, and is visually intriguing and presentable in appearance. PSOLUTION: This writing utensil of ink exhaustion sensing type is of such a type that the ink saturated in an ink occlusion element inside the barrel is supplied to a pen point serving as a writing part, that is, the ink saturated in the ink occlusion element is supplied to the pen point through an transparent ink guide tube; and the ink exhaustion sign of the ink occlusion element is detected by visually recognizing the ink guide tube. The slitted ink flow path practically shaped like a plate is internally provided to solve the above problem. PCOPYRIGHT: (C)2005,JPO&NCIPI