摘要 |
PROBLEM TO BE SOLVED: To provide a recording tape cartridge with which a drive unit can be miniaturized. SOLUTION: The recording tape cartridge is provided with an almost rectangular case to rotatably house a single reel around which a recording tape is wound, an opening which is formed by notching the corner of the case at a loading side to the drive unit and for drawing a leader member attached to the end of the recording tape, a shielding member which moves on a predetermined circumference at a side wall parallel to a loading direction to the drive unit, opens and closes the opening and has the shape of an almost circular arc in a plane view, and an operation part which is projectingly formed at the shielding member, operated by an opening and closing member provided at the drive unit and moves at one side bordering on a position where the moving locus of the shielding member approaches most to the side wall in the plane view.
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