Recording tape cartridge
AssigneeFUJIFILM Corporation
InventorKazuo Hiraguchi
Life of this patent
Estimating the term…
Abstract
In a recording tape cartridge, a reel locking member, which is positioned at a rotation locking position meshes with an engaging gear which is in a form of internal teeth and which is at a reel, such that rotation of the reel with respect to a case is impeded. When a clutch member is pushed up, a rotating cam member, which is screwed together with the clutch member, rotates toward one side, and the reel locking member moves to a releasing position by a positive motion cam structured by a cam projection and a cam groove. When the clutch member is pushed downward, the rotating cam member rotates toward another side, and the reel locking member moves to the rotation locking position by the positive motion cam.
Claims19
A recording tape cartridge comprising:
- a reel at which a recording tape is wound around an outer peripheral portion of a hub formed in a hollow-cylindrical shape, the reel being rotatably accommodated within a case;
- an internal gear provided coaxially at an inner side of the hub, and always rotating integrally with the reel;
- a locking member supported so as to be unable to rotate with respect to the case, and moving in a radial direction of the hub so as to be able to be set at a rotation locking position at which the locking member meshes with the internal gear, and a releasing position at which the locking member cancels the meshing;
- a rotating cam member supported so as to be able to rotate with respect to the case, the rotating cam member and the locking member structuring a positive motion cam, in which the rotating cam member rotates toward one direction and moves the locking member from the rotation locking position to the releasing position, and rotates toward another direction and moves the locking member from the releasing position to the rotation locking position;
- and
- an operated member disposed so as to be exposed to an exterior of the case, and rotating the rotating cam member one of toward the one direction and toward the other direction in accordance with a direction in which the operated member is operated by a drive device.
A recording tape cartridge comprising:
- a reel accommodated within a case, an engaging portion being provided within a hollow-cylindrical hub around whose outer peripheral portion a recording tape is wound;
- a locking member supported so as to be unable to rotate with respect to the case, and able to be set at a rotation locking position, at which the locking member engages with the engaging portion and, together with the case, locks the reel, and a rotation permitting position, at which the locking member cancels a state of engagement with the engaging portion and a state of locking the reel;
- and
- switching means, provided within the case, for holding the locking member at the rotation locking position when the recording tape is not in use, and for moving the locking member to the rotation permitting position when the switching means is operated in a first rotatable direction about an axis of the reel by a drive device, and for moving the locking member to the rotation locking position when the switching means is operated by the drive device in a second rotatable direction opposite to the first rotatable direction.
Dependencies are inferred from the claim text.