Dynamic information storage or retrieval – Dynamic mechanism subsystem – Access of multiple storage elements
Patent
1995-05-17
1998-02-10
Levy, Stuart S.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Access of multiple storage elements
369191, 369 36, 360 92, G11B 1700, G11B 1722
Patent
active
057176817
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a movement device for selectively moving objects in one or in the other direction. The object to be moved includes a certain portion of an electronic audio/video apparatus, such as a disc player or a tape player, a lift stage carrying the personnel, motor-car or freight in general, or a pallet.
This invention also relates to a recording and/or reproducing apparatus for recording and/or reproduction on or from a disc cartridge comprised of a cartridge main member and a recording disc contained therein, and to a recording and/or reproducing apparatus designed as a disc changer having plural disc cartridges housed therein and adapted for selecting one of these disc cartridges for recording/reproduction.
The invention also relates to a disc loading apparatus constituting the recording and/or reproducing apparatus and a cartridge holder.
BACKGROUND OF THE INVENTION
In the conventional disc player, designed and constructed as an auto-changer, a mechanical chassis carrying essential components of the disc player apparatus, such as a spindle motor or an optical pickup, is selectively moved as moved components in one direction, such as downwards, or in the other direction, such as upwards, by a movement device. The mechanical chassis is moved between positions associated with plural recording discs loaded in a stacked fashion within the disc player apparatus and selectively loaded with a recording disc for writing and/or reading information signals on or from the disc.
The movement device may be a lift stage loaded with personnel, vehicles or luggage in general, or a device for lifting a pallet as a moved article, or a so-called elevator or lift.
Such movement device is designed to move the moved article from one extreme position to the other extreme position and to be halted at at least one position between these extreme positions. That is, with the above-mentioned movement device for moving the mechanical chassis of the disc player apparatus, the mechanical chassis is halted at a plurality of positions each facing a recording disc. With the movement device designed as the lift, the lift stage or the pallet is halted at plural positions corresponding to the floor surfaces of the respective stories.
A variety of different types of the movement devices, including those having a horizontally movable plate cam 101, as shown in FIGS. 99 to 108, have hitherto been proposed. The upper edge of the plate cam 101 is designed as an inclined portion generally inclined in one direction having intermediate first to fifth horizontally extending sections 101a, 101b, 101c, 101d and 101e. On the upper edge of the plate cam 101 is set a profiling pin 102 mounted on a moved article. The profiling pin 102 is guided by a vertically extending guide groove 103 so as to be movable only in the vertical direction. The plate cam 101 is movable on the first horizontal section 101a by movement means, not shown, in a horizontal direction perpendicular to the guide groove 103 between a position in which the first horizontal section 101a is in registration with the guide groove 103, as shown in FIG. 103, and a position in which the fifth horizontal section 101e is in registration with the guide groove 103, as shown in FIG. 99.
When the first horizontal section 101a is in registration with the guide groove 103, the profiling pin 102 is set on the first horizontal section 101a and is at a standstill at the lower most position. When set on the second, third or fourth horizontal sections 101b, 101c or 101d, the profiling pin 102 is moved to progressively high positions. By the plate cam 101 being halted at a pre-set position, the profiling pin 102 is set on the upper edge of one of the second to fourth horizontal sections 101b, 101c and 101d and halted thereat. When the fifth horizontal section 101e is at a position registering with the guide groove 103, the profiling pin 102 is set on the fifth horizontal section 101e and hence is halted at the upper most position.
If, with the above-described movement d
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Klimowicz William J.
Levy Stuart S.
Sony Corporation
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