Patent ID: 7095588
Filing Date: 2006-08-22
Classification: G11B

Abstract:
1. A recording tape cartridge comprising: a case body formed by joining together an upper half and a lower half; a tape reel which is accommodated in the case body and around which a recording tape is wound; a lid rotatably provided on said upper half and covering a front side of said case body; a reel lock member which has a braking claw to be engaged with an engagement tooth provided on a peripheral edge of a flange of said tape reel and which is adapted to slide with rotation of said lid; ribs provided in the vicinity of a side wall of said lower half so as to be on each side of the reel lock member and to perform positional regulation on its sliding; reel lock member urging means for urging said reel lock member so as to cause said braking claw to be engaged with said engagement tooth; a reel lock releasing member provided in said lid in order to urge said reel lock member with rotation of said lid so as to release engagement of said braking claw and said engagement tooth; and a stepped portion provided on a top surface of said reel lock member. wherein a side surface of said stepped portion aaainst which said reel lock releasing member abuts during release engagement of said braking claw, is an inclined surface.