A cam projection sliding in a cam slot of an arm causes the arm to proceed to an arm when a shutter is in the closed position or the open position and to recede from the arm when the shutter is sliding between the open position and the closed position. A spring is thereby considerably displaced, providing a satisfactory operation of the shutter.

The present disclosure relates to a storage and transfer apparatus for mass transfer of a plurality of data discs to trays of a plurality stacked disc drives. The storage and transfer apparatus may store a plurality of discs with the disc hold pins retracted and the telescopic sections collapsed over each other. In such a configuration, the stored discs may lie in contact with each other. The storage and transfer apparatus may transfer the plurality of discs to the trays of the plurality of stacked disc drives with the discs holding pins extended and the telescopic sections extended relative to each other.

An electronic device is provided. The electronic device includes a casing and a moveable plate. The moveable plate disposed at the outside of the casing via the hinge. The moveable plate is selectively moved toward or away from the casing.

An optical disc drive (ODD) including a housing, a tray, a panel, a first linkage, and a second linkage is provided. The tray is movably disposed at the housing to move into or move out of the housing. The panel is connected to the tray and located at a side of the housing. The first linkage is rotatably disposed on the panel and located between the housing and the panel. The second linkage is rotatably disposed on the panel and located between the first linkage and the panel. By rotating the first linkage with respect to the panel in a first rotating direction, the second linkage is pushed by the first linkage and rotates with respect to the panel in a second rotating direction opposite to the first rotating direction so as to actuate the tray to move out of the housing.

A conveying block 20 for conveying recording mediums between slots 15 and a drive block 16 is provided with a recording medium delivery block 50 for delivering the recording mediums to and from the slots 15 or the drive block 16, an extendable and retractable rail portion for moving the recording medium delivery block to a desired slot, and a control block 17 for controlling extension and retraction operation of the rail portion 31. The control block 17 determines whether the slots 15 are provided in an expansion area provided in an extending direction of the rail portion 31, and when the slots 15 are provided in the expansion area, the rail portion 31 is extended so that the recording medium delivery block 50 is moved to the desired slot in the expansion area. The recording mediums are efficiently stored for changer operation.

A conveying block 20 for conveying recording mediums between slots 15 and a drive block 16 is provided with a recording medium delivery block 50 for delivering the recording mediums to and from the slots 15 or the drive block 16, an extendable and retractable rail portion for moving the recording medium delivery block to a desired slot, and a control block 17 for controlling extension and retraction operation of the rail portion 31. The control block 17 determines whether the slots 15 are provided in an expansion area provided in an extending direction of the rail portion 31, and when the slots 15 are provided in the expansion area, the rail portion 31 is extended so that the recording medium delivery block 50 is moved to the desired slot in the expansion area. The recording mediums are efficiently stored for changer operation.

A disc transfer device according to the present disclosure is a disc transfer device that transfers a disc in a first direction from a first position toward a third position via a second position, and includes a roller, a roller support mechanism, a first retaining member, a second retaining member, and a retaining member support mechanism. The roller rotates in a state of contact with a disc end face on one side in a second direction being orthogonal to the first direction, until the disc reaches the third position from the first position. The roller support mechanism supports the roller such that the roller is in contact with the transferred disc and is moveable in the first direction and the second direction. The first retaining member extends in the first direction, and is brought into contact with the disc end face on the other side in the second direction until the disc reaches at least the second position from the first position. The second retaining member is brought into contact with the disc end face on the other side in the second direction until the disc reaches the third position from the second position. The retaining member support mechanism supports the second retaining member such that the second retaining member is in contact with the transferred disc and is moveable in the first direction and the second direction.

A disc grabbing device including a body, a drive shaft, a first cam, a second cam, multiple first movable parts and multiple second movable parts are provided. The drive shaft is rotatably disposed in the body. A first cam and a second cam are disposed on the drive shaft, and rotate together with the drive shaft. The first movable parts are disposed in the body and correspond to the first cam, and move to a disc hold position or a disc release position along with the rotation of the first cam. The second movable parts are disposed in the body and correspond to the second cam, and move to a disc release position or a disc hold position along with the rotation of the second cam.

A disc drive (digital book data playback apparatus) includes a cabinet, a disc insertion part through which a digital book data disc is inserted into the cabinet, the disc insertion part being provided in a surface of the cabinet, and a guide groove formed in a surface of the cabinet, the guide groove having a starting end portion formed at an opening end and a terminating end portion continued to the disc insertion part, the guide groove being capable of receiving an outer peripheral edge of the digital book data disc to be inserted into the disc insertion part until the outer peripheral edge reaches a necessary depth.

Systems and methods for long-term non-volatile non-rotating optical storage of digital information rely on storage elements that include optical storage media, an access subsystem configured to access bits of information from one of the storage elements, and a support structure configured to support multiple storage elements. A laser used to retrieve and/or record bits of digital information may be moved along two orthogonal dimensions while the storage element is non-rotating.