| 摘要 |
A tape cartridge comprising at least one tape reel having a flange portion provided with a plurality of engaging teeth on the peripheral edge thereof and a rotatable brake arm with the braking end portion thereof formed in a hook shape having a slanted portion so as to engage at a point P with one of the engaging teeth for preventing rotation of the tape reel in such manner that a portion of the slanted wall between the point P and the end of the hook exists inside of or along a locus L which is defined by displacement of the point P of the end portion of the brake arm contacting the corner of the engaged tooth when the braking arm is in a brake position.
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