| 摘要 |
PROBLEM TO BE SOLVED: To improve performance and productivity by improving the shapes of gear teeth in a tape reel having the gear teeth. SOLUTION: On the bottom surface of the tape reel 1, annular gear teeth 16 are disposed in an outer periphery around a rotational center, a second gear tooth group 36 having large downward projection size is disposed in a trisection point position on the circumference of the gear teeth 16, and the rotating power of the drive shaft D of a tape driving side is received only by the second gear tooth group 36. During the plastic molding of the tape reel 1, it is integrally molded with a hub 10 by using a replaceable core mold 45. COPYRIGHT: (C)2005,JPO&NCIPI
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