Abstract: An optical media case having a top portion with an aperture and a bottom portion also having a aperture positioned therein. A hinged portion, said hinged portion connected between said top portion and said bottom portion to form an enclosure. An EAS device comprising a first portion, a second portion and a connector, wherein the first portion and second portion are attached to each other via the connector. An optical media having a central opening placed between the first portion and the second portion to fully enclose the optical media so that the first aperture, second aperture and central opening are aligned and wherein the EAS device first portion is located external and adjacent the top portion, and the EAS device second portion is located external and adjacent the bottom portion and the connector is positioned within the central opening of the optical media.

Abstract: A method of fabricating a cartridge for an optical data storage disc includes attaching a plastic shell and a sheet metal cover plate. The shell includes lateral walls and a floor that together define a disc cavity and a plurality of assembly posts. The sheet metal cover plate includes a plurality of holes. To attach the cover plate to the shell, the assembly posts are inserted into the holes, and the ends of the assembly posts are heated to form mushroom caps which hold the cover plate against the shell. The optical disc is housed in the disc cavity, with the data side of the disc facing the cover plate. A sheet metal shutter is wrapped around an edge of the cartridge and over the shell and cover plate.

Abstract: Disclosed is an optical disc cartridge comprising: a casing having a disc inserting/opening part for inserting and taking out a disc at an upper surface thereof and having an access hole to which an optical pickup accesses at a lower surface thereof; a pair of shutters mounted in the casing, for opening and closing the access hole and contact-supporting a disc at two points or at one point; a rotation wheel rotatably coupled to the shutters, for moving the shutters and placing an optical disc thereon; a wheel fixing/releasing means mounted at an inner side of the casing, for fixing or releasing the rotation wheel; and a disc fixing/releasing means movably mounted at the casing, for controlling a size of the disc inserting/opening part and thereby limiting an insertion/takeout of an optical disc into/from the disc inputting opening, and an apparatus of recording or reproducing data on or from an optical disc, comprising: a driving unit rotating an optical disc inserted in the optical disc cartridge; and a reco

Abstract: A disc cartridge includes: a disc storage portion; first and second shutters provided on the bottom of the disc storage portion; and a rotational member interlocked with the shutters and having a disc supporting portion to support the disc thereon while the shutters are closed and a notch to be located inside a head opening while the shutters are opened. The shutters include disc holders for holding the disc thereon with the center of the disc offset from that of the disc storage portion such that an outer side surface of the disc contacts with the sidewall of the disc storage portion at a position where the notch is located while the shutters are closed. The inner circumference of a region, where the disc supporting portion contacts with the second side of the disc, defines a circle that has its center offset from the center of the disc storage portion.

Abstract: A disk cartridge housing an optical disk is provided, a rotation wheel is housed rotatably in a cartridge body and which houses the disk and has formed therein a second opening corresponding to a first opening and through which the housed disk is exposed to outside, and a pair of shutter plates which are pivoted in conjunction with the rotation of the rotation wheel to uncover the first and second openings when the latter coincide with each other. The rotation wheel has formed at the front side thereof, at which the disk cartridge is first inserted into a disk recorder and/or player, a to-be-operated portion in which a shutter releasing portion of the disk recorder and/or player is engaged, and the to-be-operated portion is formed from a concavity opening the front side of the disk cartridge at which the latter is first inserted into the disk recorder and/or player.

Abstract: A rotor is provided which is rotatably disposed between a first shell and a recording medium, in a containing space formed inside the first shell and a second shell. The rotor includes a first wall formed along the circumferential direction of the rotor, and a part of the first wall is cut out to form a first opening. The second shell includes a second wall formed so as to overlap with the inside of the first wall along the outer circumference of the recording medium, on the outside in the radial direction of the outer circumference of the recording medium. The second wall and the first wall constitute a labyrinth structure portion for isolating the recording medium and the exterior of the recording medium from each other. With the rotor rotated, the first opening and a second opening constitute a head in/out opening.

Abstract: The present invention relates to a disk cartridge in which a disk-like recording medium such as an optical disk, a magneto-optical disk and a magnetic disk is accommodated within a disk compartment of a cartridge housing, a disk recording medium device in which the disk-like recording medium is accommodated in advance within the disk compartment so as to become freely rotatable and a disk recording and/or reproducing apparatus for recording and/or reproducing information by using this disk recording medium device.

Abstract: A controlling device for controlling a slot shutter of a slot in a computer casing is provided for the user to operate easily and conveniently. The device includes a panel with the slot shutter, an operating button disposed on the panel and peripheral to the slot shutter, a link component disposed at an inner side of the panel and having a first end corresponding to the operating button and a second end corresponding to a tray controlling button, and a resilient member disposed on the link component for providing a resilience for the operating button. When the operating button is pressed, which generates a flexible location shift of the link component due to a flexibility thereof, the tray controlling button is compressed by the link component, such that the purpose of connectedly operating the tray controlling button through the operating button is accomplished. Accordingly, the operating button can be disposed at a position where is convenient for operating.

Abstract: In a disc cartridge, when a shutter fitting portion disposed at the outside of a case is pressed, a shutter drawing portion is drawn to rotate an arcuate guide wall portion together with a shutter main body. The shutter drawing portion is swingable in the width direction of the arcuate guide wall portion, and thus occurrence of component force for inclining the shutter main body due to the pulling of the shutter drawing portion can be suppressed. Therefore, a first shutter member is smoothly rotated, and an aperture for access to a disc medium is opened. According to the present invention, there is provided a disc cartridge in which a shutter member for opening/closing an aperture for access to a disc medium housed therein can operate smoothly.

Abstract: A disk drive unit is provided that is capable of reasonably, smoothly opening/closing a shutter by rotation of an inner rotor. The disk drive unit is configured such that an inner rotor (4) is reasonably, smoothly rotated by sequentially engaging a shutter opening/closing starting projection (72), a rack portion (74), and a shutter opening/closing ending projection (76) of a rack member (71) with a shutter opening/closing starting recess (26), a partial gear (27), and a shutter opening/closing ending recess (28) in the outer periphery of the inner rotor (4).