Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Reexamination Certificate
1998-07-14
2001-09-25
Letscher, George J. (Department: 2754)
Dynamic information storage or retrieval
With particular cabinet structure
Slotted for edgewise insertion of storage disc
Reexamination Certificate
active
06295266
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to a disk player, and more particularly, to a disk player having an improved loading unit of a disk tray and an improved feeding unit of an optical pickup.
2. Related Art
In general, a compact disk-read only memory (CD ROM) player is provided with a housing and a disk tray movably installed to be inserted into and to be extracted from the housing in order to place a compact disk (CD) in or take a compact disk out of the housing. A turntable on which the compact disk carried by the disk tray is laid and a chuck to clamp the compact disk laid on the turntable are provided in the housing. Further, an optical pickup which irradiates a light beam onto the clamped compact disk to read information recorded on the compact disk is slidably installed to be movable in a radial direction of the compact disk.
However, in a conventional disk player, two motors are separately provided. The first motor is used to insert the disk tray into or extract the disk tray out of the housing. The second motor is used to transport the optical pickup. Therefore, there are problems in that the whole configuration of the disk player is complicated, the disk player is relatively heavy and the production cost of the disk player is high.
Disk players are disclosed in U.S. Pat. No. 5,563,865 for Compact Disk Transport Tray Moved by a Disk Reading Mechanism issued to Wheeler, U.S. Pat. No. 5,119,357 for Disc Player with a Single Motor Coupled to a Disc Transport Mechanism and to a Pickup Transport Mechanism issued to Tsurata et al., U.S. Pat. No. 5,633,850 for Optical Disc Player Having an Apparatus for Transferring Both a Disc Tray and an Optical Pickup issued to Park, U.S. Pat. No. 5,473,593 for Compact Disk Transport Tray Moved by a Disk Reading Mechanism issued to Wheeler, U.S. Pat. No. 5,313,351 for Twin Disk Player issued to Lee, and U.S. Pat. No. 4,701,901 for Disk Player issued to Imai.
Although various disk players currently exist, I have discovered that there is a need to provide an improved disk player with a lowered production cost.
SUMMARY OF THE INVENTION
Accordingly, to solve the above problems, it is an objective of the present invention to provide a disk player whose size can be minimized, weight can be reduced, and production cost can be reduced by improving a loading unit of a disk tray and a feeding unit of an optical pickup.
In addition, to achieve the above objectives and others, there is provided a disk player comprising a housing, a disk tray movably installed to be inserted into and to be extracted from the housing in order to place a disk in or take a disk out of the housing, a turntable rotatably installed in the housing on which a disk carried into the housing is laid, and an optical pickup slidably installed in the housing for reading information recorded on the disk laid on the turntable, characterized in that the disk player further comprises a driving motor installed in the housing, a tray driving unit for moving the disk tray by power transferred from the driving motor, an optical pickup transfer unit for moving the optical pickup by power transferred from the driving motor, and a clutch unit for selectively transferring the power of the driving motor to the tray driving unit or the optical pickup transfer unit.
To achieve the above objectives and others, there is provided a disk player comprising a housing, a disk tray movably installed to be inserted into and to be extracted from the housing in order to place a disk in or take a disk out of the housing, a turntable rotatably installed in the housing on which a disk carried into the housing is laid, a chuck installed to be capable of moving toward or away from the turntable in order to clamp the disk laid on the turntable to the turntable, and an optical pickup slidably installed in the housing for reading information recorded on the disk laid on the turntable, characterized in that the disk player further comprises a driving motor installed in the housing, a tray driving unit for moving the disk tray by power transferred from the driving motor, an optical pickup transfer unit for moving the optical pickup by power transferred from the driving motor, a clutch unit for selectively transferring the power of the driving motor to the tray driving unit or the optical pickup transfer unit, and a chuck moving unit to move the chuck simultaneously with the operation of the clutch unit.
To achieve the above objectives and others, there is provided a disk player apparatus, comprising: a housing; a disk tray movably coupled to said housing, moving in a first direction along a first path of conveyance to a first location inside said housing when inserted into said housing, moving in a second direction along the first path of conveyance to a second location outside said housing when ejected from said housing, receiving a disk when positioned at the second location, transporting the disk into said housing when said disk tray is inserted into said housing; a turntable rotatably coupled to said housing receiving the disk; an optical unit movably coupled to said housing reading information recorded on the disk on said turntable, moving along a second path of conveyance within said housing; a motor installed in said housing; a tray driving unit moving said disk tray along the first path of conveyance by power transferred from said motor; an optical unit transfer system moving said optical unit along the second path of conveyance by power transferred from said motor; and a clutch unit selectively transferring power of said motor to a selected one of said tray driving unit and said optical unit transfer system.
The present invention is more specifically described in the following paragraphs by reference to the drawings attached only by way of example.
REFERENCES:
patent: 5251195 (1993-10-01), Kawakami et al.
patent: 1-98160 (1989-04-01), None
patent: 3-147562 (1991-06-01), None
Lee Ju-hyung
Son Byung-Sam
Bushnell , Esq. Robert E.
Letscher George J.
Samsung Electronics Co,. Ltd.
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