| 摘要 |
PROBLEM TO BE SOLVED: To obtain a reel and a recording tape cartridge capable of reducing the number of components or work man-hours without lowering the strength of a flange. SOLUTION: By integrally moulding a hub 40, a lower flange 46 and an upper flange 48, cost reduction can be achieved because a workload for assembling a reel 10 is reduced, the work man-hour can be saved and the number of the components is also reduced. Moreover, because the upper flange 48 and the lower flange 46 are formed of a single sheet of a board material, rigidity can be also sufficiently secured. COPYRIGHT: (C)2007,JPO&INPIT
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