| 摘要 |
PROBLEM TO BE SOLVED: To prevent the lowering of the quality of a DVD base when two disk bases are stuck together. SOLUTION: A disk molding die comprises a fixed side mirror block 18, a stamper 32 set on the fist side mirror block 18, a first side cutter provided on the inner side of the fixed side mirror block 18 in the diameter direction and forming a cut hole 41 by first and second end faces S14 and S5, a movable side mirror block 37 provided facing the fixed side mirror block 18 and a movable side cutter provided on the inner side of the movable side mirror block 37 in the diameter direction and boring on a matrix of the disk base at the time of moving forward and intruding its end into the cut hole 41. The first end face S14 is set on the forward side of a face S3 of the stamper 32 by the given distance H. Although cut flashes are formed on the inner peripheral edge of the whole of the disk base, the ends of the cut flashes are not protruded out of an information face of the disk base. |
