| 摘要 |
PURPOSE:To control contacting pressure securely by using a composite liner formed by joining a plastics sheet and nonwoven fabric together as a liner to be interposed between the internal surface of a disk case and a disk. CONSTITUTION:This cartridge consists of the disk case made of hard plastics material, the disk 2 stored in the case rotatably, and the liner A3 which is provided over the internal surfaces of the disk case to contact disk surfaces. Liners 3 are interposed between the internal surface of an upper case 1a and the disk 2, and the internal surface of a lower cace 1b and the disk 2. Each liner is a horseshoe in plane view and has composite structure of the plastics sheet 7 and nonwoven fabric 8 stuck to its surface; and the plastics sheet 7 is stuck to the internal surface of the case and the nonwoven fabric 8 contacts both surface of the disk 3 in a clamping state. |
