| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic tape cartridge mainly designed to prevent the abrasion of the slide contact surface of a sliding release pad when the magnetic tape cartridge is loaded on a drive and a reel is rotary-driven, and capable of guaranteeing stable reel rotation even without increasing a manufacturing load when it is used for a long time. SOLUTION: A projection elastically connected from the inner wall of a cartridge case 10, its movement being regulated only in the axial direction of a rotary shaft L, and arranged in the bottom surface center of a reel lock for applying a pressing force to the rotational center of a reel 20 is made of a resin having Vickers hardness of 10 to 16, and a slide contact surface 52 coaxially rotated together with the reel 20 and freely abutted on the projection on the upper surface of a release pad 50 freely moved in the axial direction is made of a resin having Vickers hardness of 18 or more. COPYRIGHT: (C)2005,JPO&NCIPI
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