| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid directly fed type writing instrument in which air circulation and ink flow are implemented smoothly when writing. <P>SOLUTION: The liquid directly fed type writing instrument includes: an ink storage container inside which ink is stored; a pen tip fitted into one end part of the ink storage container and set so as to expose the tip end side to the outside; ink absorbing body which is situated in the internal of the pen tip side of the ink storage container; a porous body formed with a porous substance, having air-flow properties, and provided successively on the rear side of the ink absorbing body; a partition member for partitioning the internal of the ink storage container into an ink storage part side in which the ink is stored and an ink absorbing part side at which the ink absorbing body and the porous body are situated; an air pipe provided so as to have an air flow path communicating the ink storage part side with the rear end side of the porous body; and an ink pipe provided so as to have an ink flow path communicating the tip end side of the ink storage part with the inside of the ink absorbing body. <P>COPYRIGHT: (C)2011,JPO&INPIT |
