| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly reliable ink directly refilling system osmotic seal, which can store ink even when the seal is overcharged and the inner pressure of sealing material becomes higher and keep the number of parts reduced to minimum. <P>SOLUTION: Grooves 5 are formed on the bottom surface 8 of the housing cylindrical part 4a of an inner joint 4. These grooves 5 are formed over the whole surface except an air flowing hole 9 provided on the bottom surface 8 of the bottom surface, resulting in catching and retaining excess ink leaked out of the sealing material 2 and an ink occluding body 3 at the corners of the grooves 5 in the shape as shown in figure 2. In addition, owing to a clearance S provided between the upper end part of the air flowing hole 9 and the rear surface of the ink occluding body 3, the air supplied from outside spreads all over the rear surface of the ink occluding body 3 through the grooves 5 connecting with one another, resulting in realizing favorable air displacement on the sealing material 2 and the ink occluding body 3. <P>COPYRIGHT: (C)2008,JPO&INPIT |
