Patent ID: 7175123
Filing Date: 2007-02-13
Classification: G11B

Abstract:
1. A recording tape cartridge comprising: a case comprising a first inner surface and a second inner surface opposite the first inner surface; a reel having, at an axially central portion thereof, a hub which is formed in a shape of a hollow cylinder having a floor and around whose outer peripheral portion a recording tape is wound, the reel being accommodated within the case and being able to approach and move away from the first inner surface of the case; a movable member provided within the hub so as to be able to approach and move away from the floor portion of the hub, and able to be set at a restricting position, at which the movable member has approached the floor portion and restricts moving-away of the reel, which is abutting the first inner surface of the case, from the first inner surface, and a rising-up permitting position, at which the movable member has moved away from the floor portion and permits moving-away of the reel from the first inner surface; and a switching section having a pushed portion which can be pushed from an exterior of the case, and provided between the second inner surface of the case and the movable member, and when the recording tape is not in use, the switching section holds the movable member at the restricting position, and when the pushed portion is pushed by a releasing portion of a drive device, the switching section releases a held state of the movable member and moves the movable member to the rising-up permitting position.