| 摘要 |
PROBLEM TO BE SOLVED: To provide a tape cassette which can avoid damage on a magnetic tape when a large impact is added when it is dropped and the like, while securing dustproof characteristics. SOLUTION: By providing cavities 53 which are formed by pressing both ends of a bulging part 52 formed in the lower end of a back lid part 14, side edge part 52d of the bulging part 52 is kept away from the magnetic tape 3, contact to the magnetic tape 3 of the side edge parts 52d is avoided when the impact is added, and the damage on the magnetic tape 3 is prevented.
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