| 摘要 |
Disclosed herein is a magnetic tape cartridge in which stable sliding operability and assembly performance of a write protection member for inhibiting magnetic recording onto magnetic tape are assured between a write-enable position and a write-inhibit position, including a single reel upon which a magnetic tape is wound, the reel being rotatably housed in a cartridge case constituted by an upper and lower case, and a write protection member. The sliding main body of the write protection member has a control portion, a protrusion, and a stopper piece. The stopper piece is provided on the inside surface of the sliding main body so that it protrudes in a direction perpendicular to the sliding direction of the main sliding body. The stopper piece is fitted in a stopper groove formed in an elastically deformable guide wall and holds a stopped position thereof.
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