| 摘要 |
A disk cartridge permits improved efficiency of airflow circulation in a disk accommodation chamber and improved efficiency of dust collection, and also allows the spring force of a shutter spring to be reduced. In a cartridge main body of the disk cartridge, a spring accommodation chamber is formed outside a disk accommodation chamber. The spring accommodation chamber is separated by upper and lower partitions of upper and lower halves so that it is discrete and independent from the disk accommodation chamber. An elastic member installed in the spring accommodation chamber is used to rotatably drive a shutter opening and closing arm in the direction for closing.
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