| 摘要 |
A magnetic tape is wound up in a roll on a pate reel without irregular windings in the roll. A rotary shaft with the tape reel coupled thereto is shifted in one direction of tape width is shifted by a predetermined distance until the magnetic tape at its edge is contiguous or subcontiguous to a reel flange to additionally form a predetermined number of turns of the magnetic tape on a magnetic tape roll so as thereby to form an annular peripheral lip portion laterally extending at one side of the magnetic tape roll when the magnetic tape roll grows as large in size as predetermined.
|
