JP2002352499A - Disk driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk driving device that can mount the disc on a tray to surely fetch even when the disc is stuck to a clamp board. SOLUTION: An opening 5 is placed on a chassis 1 and a tray 6 is placed at the opening 5 so that the tray 6 can be taken in and out. A receptor 8 mounting the disk D is formed on the tray 6 and a projection 10 is formed at the rear of a circumferential part. The projection 10 is contacted to the rear end face of the disk D by movement of the tray 6 toward the side of the opening 5 and then the disk D is separated from the clamp board 12 by the contacting force when the disk D is stuck to the clamp board 12. Thereby the disk D stuck to the clamp board 12 can be mounted on the tray 6 to be fetched.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reproducing information recorded on a disc-shaped information recording medium (hereinafter, simply referred to as an information recording disc or simply a disc) such as a compact disc (CD), CD-R, or DVD, The present invention relates to a disk drive device used to record specific information on the disk drive, and more particularly to a disk drive device capable of reliably removing a disk placed on a tray without leaving it in a housing during an eject operation.

[0002]

2. Description of the Related Art Conventionally, various types of disk drives such as a CD player have been known. One of them is a type in which a disk as an information recording medium is put on and taken out of a tray. Referring to FIG. 10, an outline is shown. Reference numeral 1 denotes a housing of the apparatus, and 6 denotes a tray provided so as to be able to be taken in and out of the housing. The part 8 is formed. Further, inside the housing 1, devices for driving the disk D (reproducing / recording information with the disk) are as follows.
A turntable 11 for rotating the disk D placed on the receiving portion 8 of the tray 6, a spindle motor 13 serving as a driving source for the turntable 11, a clamp plate 12 facing the turntable 11, and the like along the rotating disk D An optical pickup (not shown) that moves in the radial direction is provided.

According to this type of disk drive device, the center of the disk D placed in the receiving portion 8 is sandwiched between the turntable 11 and the clamp plate 12 and the disk 6 is placed in the tray 6.
The recorded information is read by an optical pickup while being rotated while being lifted up, while the turntable 11 is lowered and the disc D is returned to the receiving portion 8 when the disc D is exchanged, so that the disc D is removed. The loaded tray 6 is pushed out of the housing 1.

However, even when the turntable 11 is lowered, the disk D does not drop into the receiving portion 8 while being in contact with the clamp plate 12, and the tray 6 is pushed out in an empty state and the disk D cannot be taken out. In some cases, after the tray 6 is pushed out, the disc D separates from the clamp plate 12 and causes a malfunction of the drive system including the tray 6, or the information recording surface of the disc D hits a part of the drive system and is damaged. Sometimes happened.

[0005] Therefore, the disk D is adhered to the clamp disk 12 by subjecting the clamp disk 12 to Teflon (registered trademark) processing or by making the clamp surface thereof an uneven surface having a convex portion p as shown in FIG. Some measures have been taken to reduce the quality.

[0006]

However, even if the above-described measures are taken, the disc and the clamp disc may not be separated from each other. In particular, discs rented at rental stores, etc., may have sticky material remaining on the center of one side due to re-labeling of management labels. Often attached.

[0007] On the other hand, discs having a center coated with a coloring agent or the like are commercially available, but this kind of disc also has a marked tendency to cause malfunction due to the adhesiveness of the above-mentioned painted portion to the clamp plate. Met.

The present invention has been made in view of the above circumstances, and a main object of the present invention is to enable a disk stuck to a clamp board to be reliably taken out by placing it on a tray regardless of the properties of the disk surface. Is to do so.

[0009]

In order to achieve the above object, the present invention forms a receiving portion 8 on which an information recording disk D is placed, and a tray 6 provided so as to be able to be taken in and out of the housing 1.
The information recording disk D placed in the receiving portion 8 is
A turntable 11 for rotating the information recording disk D after holding the information recording disk D at a predetermined distance therefrom, and a rotatable clamp plate 12 for sandwiching the center of the information recording disk D opposite to the turntable 11. In the disk drive device, the projections 10, 10A and 10B are provided on the tray 6 at the periphery of the receiving portion 8, and the projections 10, 10A and 10B are provided on the turntable while the information recording disk D is in contact with the clamp plate 12. A disk drive device characterized in that the disk drive device has a height that abuts against the end face of the information recording disk D by relative movement between the clamp disk 12 and the receiving portion 8 when separated from the information disk 11. .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a disk drive according to the present invention. In this example, the disk drive device reproduces recorded information of a compact disk (CD) as a disk-shaped information recording medium (disk D).
A player. Reference numeral 1 denotes a housing (including an exterior and an internal chassis) of the apparatus, and a front surface thereof includes an operation unit 3 serving as an operation unit 2 for supplying a specific control signal to an internal control circuit.
In addition to the above, the operation unit 2 is provided with a display unit 4 for displaying an operation state of the control system and the like, and a slit-shaped opening 5. Reference numeral 6 denotes a tray provided so as to be able to be taken in and out of the opening thereof.
Is placed. The operation switches 3 include a main power switch, a disc drive start button, music selection start, pause, an eject switch (for disc ejection), and the like.

According to the disk drive of the present embodiment, a desired disk D is placed on a tray 6 projecting horizontally from the opening 5 and loaded into the housing 1 by pushing the tray 6 to record information. When the disc D is exchanged, the disc D can be ejected to the outside through the opening 5 while the disc D is placed on the tray 6 by pressing the eject switch.

FIG. 2 is a perspective view of the tray, and FIG.
Shows the longitudinal section. As evident in these figures,
In this embodiment, the tray 6 has a rectangular plate shape integrally formed of a synthetic resin, and on both side edges thereof are formed ridges 7 slidably supported in a horizontal direction by a guide (not shown) inside the housing 1. Is done.

On the other hand, on the front side of the upper surface of the tray 6, a receiving portion 8 formed of a circular tapered recess for placing a disk.
Is formed. Inside the receiving part 8, a concentric shelf 8A,
8B are formed to support the peripheral edge of the disk. Among them, the shelf 8A on the outer peripheral side is used for a large-diameter disk, that is, a general CD in this example, and the shelf 8A on the inner peripheral side is used. The shelf 8B is for a small-diameter disk, that is, for a single CD in this example.

The tray 6 has a slot 9 extending from the center of the receiving portion 8 to the outside thereof. The long holes 9 are for irradiating the information recording surface with laser light from below the disk placed in the receiving portion 8, and move in the radial direction of the disk while transmitting and receiving the laser light (not shown). It is formed along the movement path of the optical pickup, and in particular, at one end of the long hole 9, a turntable, which will be described later and supports the center of the lower surface of the disk, can pass through.

Further, a projection 10 having a predetermined height (about 1 to 5 mm) is formed on the upper surface of the tray 6 around the receiving portion 8. In this example, the projections 10 are provided on both sides of the elongated hole 9 at the outside rear of the receiving portion 8 as shown in FIG.
The projection 10 serves to separate the disk from the clamp when the disk is stuck to a clamp board described later.

The operation will be described below. FIG. 4 shows a state in which the tray 6 on which the disk D is placed is drawn into the inside of the housing 1, and at this time, the center of the receiving portion 8 and the disk D placed thereon is set. Part is turntable 11 and clamp board 12
Is positioned between Here, turntable 11
Numeral 13 is for rotating the disk D placed on the receiving portion 8 while supporting the disk D. Numeral 13 is a motor as a driving source thereof. In particular, the motor 13 and the turntable 11 attached to the output shaft thereof constitute an integral unit that can move up and down together with an optical pickup (not shown) and the like, and move upward toward the disk D when driving the disk D for reproduction. ing.

On the other hand, the clamp board 12 is a turntable 1
1 and is rotatably provided on the upper part of the housing 1. Then, when reproducing and driving the disk D,
The turntable 11 advances into the receiving portion 8 through the long hole 9 and carries the central portion of the disk D placed here.

FIG. 5 shows a state at the time of the reproduction drive. At this time, the disk D is rotated with the center thereof being sandwiched between the turntable 11 and the clamp plate 12 and slightly floating above the receiving portion 8. . Thus, the rotating disk D
The optical pickup (not shown) reads the recorded information while moving in the radial direction.

Although the disk D is normally returned into the receiving portion 8 by lowering the turntable 11, even if the turntable 11 lowers and separates from the disk D, FIG.
In some cases, the disc D may not be delivered to the receiving portion 8 while being in contact with the clamp board 12 as shown in FIG. At this time, even if the eject switch is pressed, not only the tray 6 is pushed out with an empty load and the disc D cannot be taken out, but also the disc D falls inside the casing 1 while the tray 6 is going out and the information recording surface May be damaged.

Here, according to the above-described disk drive device, the projection 10 faces the rear end surface of the disk D which is still in contact with the clamp disk 12, so that the projection 10 and the clamp disk 12 As shown in FIG. 7, when the tray 6 and the clamp plate 12 are relatively moved in parallel (in this example, the tray 6 is horizontally moved to the opening 5 side by a transport mechanism (not shown)) along the facing direction of FIG. The protrusion 10 contacts the rear end surface of the disk D. As a result, the disc D is kicked off from the clamp plate 12 into the receiving portion 8 by the contact force, and is taken out on the tray 6. Therefore, according to the present invention, even if the disk D sticks to the clamp plate 12, it can be reliably ejected by placing it on the tray 6.

The preferred embodiment of the present invention has been described above.
The disk drive device according to the present invention is not limited to the above-described configuration, and can be applied to, for example, a disk drive device having a pivotable clamp plate 12 as shown in FIG. In this example,
Reference numeral 14 denotes a turning arm provided with a clamp plate 12 at its tip, and a projection 10 is provided around the receiving portion 8 in the turning direction.
Is formed. According to this, the rear end surface of the disk stuck to the clamp plate 12 can be pressed by the projection 10 by moving the tray 6 in the direction of the arrow shown in the figure, and the end surface of the disk can be brought into contact with the protrusion 10 even when the clamp plate 12 rotates. This can be dropped into the receiving portion 8.

Further, the present invention can be applied to an auto chain jar type having a plurality of receiving portions 8. FIG. 9 shows an example in which the tray 6 is provided with six receiving portions 8 on which disks are individually arranged. In this example, the tray 6 is composed of a rectangular tray body 6A serving as a lower plate and a circular index plate 6B rotatably provided on the tray body 6A. Here, each receiving portion 8 is formed at equal intervals in the circumferential direction of the index plate 6B, and a projection 10A having a predetermined height between the receiving portions 8 and the index plate 6B adjacent to each receiving portion 6 are formed. Another projection 10B is formed on the outer peripheral portion. According to the present example, the projection 10A is brought into contact with the end face (side end face) of the disc which is still attached to the clamp board 12 when the indexing plate 6B rotates, and the disc is separated from the clamp board 12 and is shown in the drawing. When the tray 6 is moved in the direction of the arrow (at the time of eject operation), the projection 10B is brought into contact with the end face (rear end face) of the disc which is still attached to the clamp board 12 so that the disc can be separated from the clamp board 12. .
Therefore, in the case of the present example, there is no possibility that the disk cannot be taken out and the two disks are rotated while overlapping.

On the other hand, in the above example, the disc was described as a compact disc, but the present invention is not limited to this,
The present invention can be applied to all disc-shaped recording media such as R, CD-ROM, and DVD. In particular, in the case of a disc in which recorded information can be rewritten at any time, it is needless to say that the disc has both a reproducing function and a recording function.

[0024]

As is apparent from the above description, according to the present invention, even when the disk is stuck to the clamp plate, the disk is moved into the predetermined receiving portion by the relative movement between the receiving portion and the clamp plate. Because it is delivered, even a disc that easily adheres to the clamp board can be reliably taken out by placing it on the tray.

In particular, as a means for separating the disk kept in contact with the clamp board, only a projection is formed on the periphery of the receiving portion, so that it is easy to put it to practical use, and it is possible to reduce the cost and obtain a very large improvement effect.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing the appearance of a disk drive device according to the present invention.

FIG. 2 is a perspective view showing a tray used in the apparatus.

FIG. 3 is a longitudinal sectional view of the tray.

FIG. 4 is a schematic diagram showing a state where a tray is drawn into a housing;

FIG. 5 is a schematic diagram showing a state during reproduction driving of the disk.

FIG. 6 is a schematic diagram showing a state in which a disk is stuck to a clamp board.

FIG. 7 is a partially enlarged view showing a state where the disc is separated from the clamp board.

FIG. 8 is a main part plan view showing another embodiment of the present invention.

FIG. 9 is a main part plan view showing another embodiment of the present invention.

FIG. 10 is a schematic diagram showing a conventional disk drive.

FIG. 11 is an enlarged view of a main part of a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Operation part 3 Operation switches 4 Display part 5 Opening part 6 Tray 7 Ridge 8 Reception part 8A, 8B Shelf 9 Elongated hole 10, 10A, 10B Projection 11 Turntable 12 Clamp board 13 Motor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D046 AA12 AA16 CA16 CB11 FA08 HA08 HA10 5D072 AB02 BD10 BH05 EB02 EB04

Claims (1)

[Claims] An information recording disk is provided with a receiving portion on which a tray is provided so that the information recording disk can be taken in and out of the housing, and an information recording disk placed on the receiving portion is separated from the receiving portion by a predetermined amount and held. A disk drive device comprising: a turntable for rotating the information recording disk; and a rotatable clamp plate that sandwiches a center portion of the information recording disk opposite to the turntable. A protrusion is provided on the tray at the portion, and when the information recording disk is separated from the turntable while keeping the information recording disk in contact with the clamp disk, the relative movement between the clamp disk and the receiving portion causes the protrusion of the information recording disk. A disk drive device having a height abutting on an end face.