Abstract:
An optical pickup device, comprising an optical pickup part, a first rack part provided on the optical pickup part, a slide member having an opening and closing part for opening and closing the opposed surface of an objective lens to an optical disk and a second rack part provided slidably on the first rack part, and a drive mechanism having drive gears each meshed with the first rack part and the second rack part, wherein, when the optical pickup part is moved to a specified position, the meshed state of the first rack part with the drive gears is released, the second rack part of the slide member is driven by the drive gears, and the opening and closing part moves from a position where the opposed surface side of the objective lens to the optical disk is opened to a position where the opposed surface side is closed.
Abstract:
An elevation stage is moved up and down with its pins guided in vertical grooves in a side wall by first and second cams. The first cam is equipped with a zigzag groove and periodically reciprocates. The second cam reciprocates while keeping a predetermined phase difference from the first cam. When the pin reaches a branch point of the zigzag cam groove depending on the rotating direction of a rotary cam for moving each cam, the second cam supports or does not support the cam, and ascension and descension are thus selected. The apparatus is simple in construction, has a small size, high load resistance and long durability, and is suitable for recording and/or reproduction apparatus.
Abstract:
A recording and/or reproduction apparatus using a disk cartridge accommodating an optical disk as a recording medium. This recording and/or reproduction apparatus comprises a recording/reproduction portion for conducting recording and/or reproduction of information signals to and from a recording medium stored in the cartridge, a container for accommodating a plurality of disk cartridges, having operating for moving the disk cartridges that are disposed on the opposed surfaces, and disposed on the front surfaces side of the main body, a take-out mechanism for selectively taking out the disc cartridges from the container, a transfer mechanism for loading the cartridge taken out by the take-out mechanism to the recording and/or the reproduction portion, and an elevation transfer mechanism for moving up and down and moving relatively the container and the take-out mechanism.
Abstract:
A recording and/or reproducing device comprises a disc stocker (62, 71) for holding a plurality of disc cartridges (320) in tiers, each said disc cartridge being comprised of a recording disc housed within a cartridge main member (305), and transporting means (126) for selecting one of the disc cartridges (320) held by said disc stocker (62, 71) and transporting the selected disc cartridge (320) to a recording and/or reproducing unit (65).The disc stocker (62, 71) holds said disc cartridges (320) so that each disc cartridge (320, 321) is partially exposed to outside.
Abstract:
A recording and/or reproducing device comprises a disc stocker (62, 71) for holding a plurality of disc cartridges (320) in tiers, each said disc cartridge being comprised of a recording disc housed within a cartridge main member (305), and transporting means (126) for selecting one of the disc cartridges (320) held by said disc stocker (62, 71) and transporting the selected disc cartridge (320) to a recording and/or reproducing unit (65).The disc stocker (62, 71) holds said disc cartridges (320) so that each disc cartridge (320, 321) is partially exposed to outside.
Abstract:
A mode changing apparatus for a tape recorder comprises a rotatable changing gear having a toothed periphery with a toothless gap therein, a magnet rotatably coupled with the changing gear for rotation therewith, a driving gear rotatably mounted for engagement with the toothed periphery of the changing gear, a yoke assembly including a portion cooperating with the magnet for providing a stabilizing effect by which the changing gear is held in an initial position with the toothless gap facing the driving gear, a solenoid coil wound on another portion of the yoke assembly and being operative, when energized, to generate a magnetic force by which the magnet and changing gear are angularly displaced from the initial position for engagement of the toothed periphery by the driving gear to cause turning of the changing gear, an operating member, such as a head base plate of the tape recorder, movable from an inactive position to an active position for establishing a respective mode of the tape recorder and being yieldably urged to return to its inactive position, an actuating assembly, desirably in the form of a cam rotatable with the changing gear and an actuating lever engageable with the cam and with the head base plate or other operating member, and being responsive to turning of the changing gear by the driving gear for moving the operating member to its active position, and an armature assembly moved from a free position spaced from the yoke assembly to a holding position against a portion of the latter in response to movement of the operating member to its active position, the yoke assembly and solenoid coil being operative, when the coil is energized, to magnetically hold the armature assembly in its holding position for preventing return of the operating member to its inactive position.
Abstract:
MODE CHANGING APPARATUS FOR A TAPE RECORDER A mode changing apparatus for a tape recorder comprises a rotatable changing gear having a toothed periphery with a toothless gap therein, a magnet rotatably coupled with the changing gear for rotation therewith, a driving gear rotatably mounted for engagement with the toothed periphery of the changing gear, a yoke assembly including a portion cooperating with the magnet for providing a stabilizing effect by which the changing gear is held in an initial position with the toothless gap facing the driving gear, a solenoid coil wound on another portion of the yoke assembly and being operative, when energized, to generate a magnetic force by which the magnet and changing gear are angularly displaced from the initial position for engagement of the toothed periphery by the driving gear to cause turning of the changing gear, an operating member, such as a head base plate of the tape recorder, movable from an inactive position to an active position for establishing a respective mode of the tape recorder and being yieldably urged to return to its inactive position, an actuating assembly, desirably in the form of a cam rotatable with the changing gear and an actuating lever engageable with the cam and with the head base plate or other operating member, and being responsive to turning of the changing gear by the driving gear for moving the operating member to its active position, and an armature assembly moved from a free position spaced from the yoke assembly to a holding position against a portion of the latter in response to movement of the operating member to its active position, the yoke assembly and solenoid coil being operative, when the coil is energized, to magnetically hold the armature assembly in its holding position for preventing return of the operating member to its inactive position.
Abstract:
A feather-touch mode changer having low power requirements and being capable of selectively providing a plurality of modes of operation of a tape recording/reproducing apparatus, has two changing mechanisms which are each of the type that includes a rotatable changing gear with a toothless gap, a selectively actuable trigger for causing initial angular displacement of the changing gear from an inactive position in which the toothless gap faces a drive gear to an actuating position in which the changing gear engages the drive gear, and an actuating lever that moves in a response to the rotation of the changing gear by the drive gear. The two changing mechanisms are selectively actuable, and a single drive gear is positioned for engagement with both changing gears. Each of the two changing mechanisms has associated with it a selectively energizable electromagnetic device and a locking lever that moves into a locking position in response to movement of the respective actuating lever. Each electromagnetic device is energized upon actuation of the respective trigger means to magnetically hold the respective locking lever in its locking position. The mode changing apparatus also includes mode establishing mechanisms comprising a plurality of cooperating gears and levers that are engaged by the actuating and locking levers upon selective operation of the changing mechanisms to establish FWD, FF, REW, PAUSE and ADS (Automatic Detection of Silence) modes of operation of the tape recording/reproducing apparatus.
Abstract:
This device has an optical pickup section, a first rack portion provided on the optical pickup section, a slide member having an opening/closing portion for opening/closing a facing surface of the objective lens to the optical disc and a second rack portion provided to be slidable on the first rack portion, and a driving mechanism having a driving gear which meshes with the first rack portion and the second rack portion. In this device, when the optical pickup section is moved to a predetermined position, the meshing state of the first rack portion with the driving gear is canceled and the second rack portion is driven by the driving gear to move the slide member, thereby moving the opening/closing portion from a position for opening the facing surface side of the objective lens to a position for closing the facing surface side.