| 摘要 |
PURPOSE:To prevent electrification of the static electricity generated by the friction, by providing electrifying properties to the surface of a floppy disk case where a disk is brought into contact with the case. CONSTITUTION:The carbon organic fibers are stuck to a woven fabric on an entire inside surface of a floppy disk case 1 which stores a floppy disk 4. In this case, a cut hole of the reading part and a disk holding cut hole are excluded. Then the disk 4 is stored into the case 1 by bringing into contact with the case surface 2. Thus the electrification is prevented by a theory of corona discharge. In other words, the generated electric fields are collected by the surface 2, and a strong electric field is generated around the surface 2. As a result, the air is ionized. The neutralization is secured between the ion thus obtained and the electric charge on the surface 2, and as a result the static electricity is eliminated. Thus the dust or the like foreign matters do not easily stick to the disk 4. |
