JP3815560B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a CD and CD-related disk drive device for reproducing a disk on which information is recorded or recording information on the disk, and adopting a disk loading and ejecting system, usually called a tray loading system. In particular, the present invention relates to a disk device that can be used vertically.
[0002]
[Prior art]
As is well known, as a disk loading / unloading (loading / ejecting) system for a disk device that reads / writes data from / to a disk such as a CD, CD-ROM, CD-R, CD-I, CD-E, DVD, etc. There is a method called a tray loading method. This tray loading type disk device has a tray mounted thereon such that a CD such as a CD can be inserted into and removed from the main body cabinet, and a disk mounted on the tray using a head. Read and / or write data.
[0003]
[Problems to be solved by the invention]
By the way, a conventional tray loading type disk device is usually used as a horizontal placement. In other words, this tray loading type disk device is designed on the assumption that the device is placed horizontally, and therefore, in the vertical position, it is impossible to set the disk on the tray and it cannot be used.
[0004]
Conventionally, as a countermeasure against this, a control for controlling a disk holding member provided to hold a disk when placed vertically so as to rotate an interlocking lever connected to an urging spring corresponding to ejection and loading operations. Some are equipped with a device (for example, see Patent Document 1).
[0005]
In addition, the disk fixing member provided to hold the disk when placed vertically is linked with the tray storing operation and slides against the bias of the torsion coil spring due to the combination of the cam and the focus when storing. There is one configured to move the clamp plate and release the fixation (see, for example, Patent Document 2).
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-167760 [Patent Document 2]
JP-A-8-45157
[Problems to be solved by the invention]
However, in the configuration described in the former Patent Document 1, the disk pressing member is controlled by a control device, and a biasing spring or the like is used, so that the number of parts is increased, the configuration becomes extremely complicated, and the force is expensive. Become.
[0008]
Further, in the latter configuration disclosed in Patent Document 2, the operation is time consuming and the operation is time consuming and, like the former, a cam mechanism and a torsion coil spring are used. In addition to the increase in the number of devices, there is a problem that the device configuration tends to be extremely complicated and expensive.
[0009]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a disk device that can be used vertically while reducing the number of parts with an extremely simple configuration.
[0010]
[Means for Solving the Problems]
In order to achieve this object, according to the first aspect of the present invention, there is provided a disc apparatus in which a tray having a disc receiving surface having a concave step portion on one surface is formed so as to be freely inserted into and removed from a main body cabinet. On the back side of the surface, a shaft with a gear groove formed in a part of the tray is inserted, and the concave step of the tray is fitted so that one end is located on the back side and the other end is located on the disc receiving surface side. The disk fall prevention piece comprises a disk fall prevention piece having a gear groove mating with the gear groove of the shaft on one surface thereof, and rotating the operation portion of the shaft located on the front surface of the tray. The piece is configured to be movable toward the center of the disk receiving surface.
[0011]
According to the configuration of the first aspect of the present invention, when this type of disk device is used vertically, if the operating portion of the shaft located on the front surface of the tray is rotated, this rotational force is aligned with the gear groove of the shaft. This is transmitted to the gear groove of the disk drop prevention piece, whereby the disk drop prevention piece moves toward the center of the disk receiving surface. In this state, if the disk is placed along the disk receiving surface, the disk is held by the disk drop prevention piece. Therefore, it is possible to prevent the disk from falling. In addition, the configuration is such that a disk having a gear groove in one part thereof and a disk fall prevention piece having a gear groove that is aligned with the gear groove on one surface thereof are added to this type of disk device. What is necessary is just to comprise as above-mentioned, and it can aim at reduction of a number of parts very simple.
[0012]
According to a second aspect of the present invention, there is provided a disc device in which a tray having a disc receiving surface having a concave step portion on one surface is formed so as to be freely inserted into and removed from a main body cabinet. A shaft having a gear groove in a part thereof, and a concave step portion of the tray is fitted so that one end is located on the back side and the other end is located on the disc receiving surface side. And a disc drop prevention piece having a gear groove mating with the gear groove of the shaft, and moving the operating portion of the shaft located on the front surface of the tray back and forth to thereby receive the disc fall prevention piece. It is configured to be movable in the center direction of the surface.
[0013]
According to the configuration of the invention described in claim 2, when this type of disk device is used in a vertical position, if the operating portion of the shaft located in front of the tray is moved forward, this movement is aligned with the gear groove of the shaft. Is transmitted to the gear groove of the disc fall prevention piece to be moved, and thereby the disc fall prevention piece moves toward the center of the disc receiving surface. In this state, if the disk is placed along the disk receiving surface, the disk is held by the disk drop prevention piece. Therefore, it is possible to prevent the disk from falling. In addition, the configuration is such that a disk having a gear groove in one part thereof and a disk fall prevention piece having a gear groove that is aligned with the gear groove on one surface thereof are added to this type of disk device. What is necessary is just to comprise as above-mentioned, and it can aim at reduction of a number of parts very simple.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0015]
FIG. 1 is a schematic perspective view of a main part when a disk device according to an embodiment of the present invention is placed vertically, and FIG. 2 is a schematic side view showing only the main part of a tray. In this disk device, a tray 2 is provided so as to be freely inserted and removed from a main body cabinet 1. The tray 2 is provided with a disk receiving surface 22 for receiving a 12 mm disk 3 having a concave step 21 formed on one surface. The disk receiving surface 22 is provided with an opening 23 through which a turntable (not shown) which is a chucking member provided in a spindle motor mounted on a pickup unit (not shown) is passed. Further, a clamper and a clamper member (not shown) for chucking the disc 3 in cooperation with the turntable are provided on the disc receiving surface 22 of the tray 2.
[0016]
On the back surface 24 of the disk receiving surface 22, when this type of device is placed vertically, a shaft 4 is provided in a lower portion from the front surface 25 of the tray 3 and has a gear groove 41 in a part thereof. It has been. Reference numeral 42 denotes an operation portion of the shaft 4, which is formed in a knob shape, for example, and is positioned on the front surface 25 side of the tray 3. By rotating the operation portion 42 as shown by an arrow A in FIGS. The whole 4 is rotated.
[0017]
Reference numeral 5 denotes a disk fall prevention piece, which is provided at two locations in the illustrated example. Each of the disk fall prevention pieces 5 has one end 51 on the back surface 24 side of the tray 2 and the other end 52 on the disk receiving surface 22 side. The slide hole 26 provided in the concave step portion 21 portion of the tray 2 is fitted so as to slide. In addition, a gear groove 53 that mates with the gear groove 41 of the shaft 4 is formed on one surface of the one end 51 of the disk fall prevention piece 5 that faces the shaft 4. Accordingly, by rotating the operation portion 42 of the shaft 4 located on the front surface 25 of the tray 2, the rotational force is transmitted to the gear groove 53 of the disk drop prevention piece 5 that is coupled to the gear groove 41 of the shaft 4. Accordingly, the disk drop prevention piece 5 slides back and forth in the center direction of the disk receiving surface 22 as indicated by an arrow B in FIGS. The distance between the disk receiving surface 22 side of the other end 52 of the disk fall prevention piece 5 and the disk receiving surface 23 is such that the disk 3 is chucked or rotated while the disk 3 is mounted. It is only necessary to provide a gap T (see FIG. 4) that does not get in the way.
[0018]
First, since the disc drop prevention piece 5 is not required when used horizontally, the operation unit 42 located on the front surface 25 of the tray 2 is rotated clockwise in FIG. 4, for example. This rotational force is transmitted to the gear groove 53 of the disk drop prevention piece 5 that is aligned with the gear groove 41 of the shaft 4, and the disk drop prevention piece 5 slides and moves to the left in the drawing. The disk 3 may be retracted to a position that does not interfere with the loading of the disk 3 and used in the same manner as the conventional one for horizontal installation.
[0019]
Next, when used in a vertical orientation, the operation unit 42 located on the front surface 25 of the tray 2 is rotated counterclockwise in FIG. This rotational force is transmitted to the gear groove 53 of the disk drop prevention piece 5 that is engaged with the gear groove 41 of the shaft 4 in the same manner as described above. A slide movement toward the right direction, that is, toward the center of the disk receiving surface 22, results in the state shown in FIG. In this state, when the loading button is operated, the tray 2 is pulled out, and the desired disk 3 is placed on the disk receiving surface 22, the disk 3 in this example is held by the lower two disk drop prevention pieces 5. It will be held. Next, in this state, a loading button (not shown) is operated to load the tray 2 into the main body cabinet 1. Thereby, the disk 3 placed on the disk receiving surface 22 can be reliably fed into the apparatus without dropping from the disk receiving surface 22. Thereafter, the disk 3 is chucked by chucking or the like in the pickup unit.
[0020]
Although not described in detail, even when ejecting , the operation is substantially the same as the aforementioned loading operation, and a loading button (not shown) is operated to eject the tray 2 from the main body cabinet 1. At this time, since the disk 3 is ejected while being held by the two disk drop prevention pieces 5 at the lower side, it does not fall from the disk receiving surface 22.
[0021]
In the embodiment as described above, a shaft having a gear groove in a part thereof and a disk fall prevention piece having a gear groove mating with the gear groove on one surface thereof are added to this type of disk device. Rotating the operating portion of the shaft located on the front surface of the tray so that the disc fall prevention piece can be moved in the center direction of the disc receiving surface so that the concave step portion of the tray is fitted. If installed, this type of device can be used vertically, and the number of parts can be reduced with a very simple configuration.
[0022]
Next, another embodiment shown in FIG. 6 will be described. In this embodiment, the operation of the shaft in the above-described embodiment is changed from rotation to back-and-forth movement. In FIG. 6, the same reference numerals as those in FIGS. 1 to 5 denote substantially the same parts. Hereinafter, the difference will be mainly described.
[0023]
FIG. 6 is a schematic perspective view showing the relationship between the shaft and the disk drop prevention piece. In this embodiment, the relationship between the gear groove 42 of the shaft 4 and the gear groove 53 of the disk drop prevention piece 5 associated therewith is such that the shaft 4 is moved to the left and right as shown by the arrow C in the figure. As shown by the arrow B in the figure, the disk fall prevention piece 5 is configured to slide back and forth in the center direction of the disk receiving surface. That is, the direction of the groove of the gear groove 42 of the shaft 4 is 180 degrees different from that of the above-described embodiment, and other configurations are substantially the same.
[0024]
According to this configuration, when the operation unit (not shown) is operated so as to be pushed from the front side of the tray to the main body cabinet side (right direction on the paper surface) when used vertically, the entire shaft 4 is shown by an arrow C in FIG. As shown in the figure, the disk is moved from the left to the right, and the disk drop prevention piece 5 is slid in the center of the disk receiving surface as indicated by an arrow B in the drawing.
[0025]
Therefore, also in this embodiment, when this type of apparatus is used in a vertical position, the disk 3 can be ejected and loaded while being held by the disk drop prevention piece 5. Therefore, it is possible to prevent the disk from dropping during ejection and loading. Moreover, the configuration is very simple and the number of parts can be reduced.
[0026]
Each embodiment described above is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.
[0027]
【The invention's effect】
As described above, according to the first aspect of the present invention, this type of disk device includes a shaft having a gear groove in a part thereof, and a disk drop prevention having a gear groove that is coupled to the gear groove on one surface thereof. And by rotating the operating portion of the shaft located on the front surface of the tray, the concave portion of the tray can be moved so that the disc fall prevention piece can move toward the center of the disc receiving surface. If it is installed so that it can be fitted, this kind of device can be used vertically, as well as the number of parts can be reduced with an extremely simple configuration, and this kind of device becomes inexpensive, etc. There is an effect.
[0028]
Further, in this invention, a shaft having a gear groove in a part thereof and a disk fall prevention piece having a gear groove mating with the gear groove on one surface thereof are added to this type of disk device. Then, by moving the operation portion of the shaft located on the front surface of the tray back and forth, the concave portion of the tray is fitted so that the disc fall prevention piece can move in the center direction of the disc receiving surface. If mounted in such a manner, this type of device can be used in a vertical position, and the number of parts can be reduced with an extremely simple configuration, so that this type of device becomes inexpensive.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a main part when a disk device according to an embodiment of the present invention is installed vertically.
FIG. 2 is a schematic side view showing only the main part of the tray of the apparatus shown in FIG. 1;
FIG. 3 is a schematic perspective view showing a relationship between a shaft and a disk drop prevention piece.
FIG. 4 is an enlarged cross-sectional view of a main part showing a relationship between a shaft, a disk drop prevention piece, and a tray.
FIG. 5 is a schematic enlarged view of a main part showing a relationship of a gear groove between a shaft and a disk drop prevention piece.
FIG. 6 is a schematic perspective view showing the relationship between a shaft and a disk drop prevention piece according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body cabinet 2 Tray 21 Concave step part 22 Disc receiving surface 24 Back surface 25 Front surface 3 Disc 4 Shaft 41 Gear groove 42 Operation part 5 Disc fall prevention piece 51 One end 52 Other end 53 Gear groove

Claims (2)

In a disk device in which a tray having a disk receiving surface having a concave step on one surface is formed so as to be freely inserted into and removed from the main body cabinet ,
A shaft penetrating from the front surface of the tray on the back surface side of the disk receiving surface and having a gear groove in a part thereof, and a concave step of the tray so that one end is positioned on the back surface side and the other end is positioned on the disk receiving surface side. A disc fall prevention piece having a gear groove mating with the gear groove of the shaft on one surface thereof, and rotating the operating portion of the shaft located on the front surface of the tray, A disk device characterized in that the disk fall prevention piece is configured to be movable toward the center of the disk receiving surface. In a disk device in which a tray having a disk receiving surface having a concave step on one surface is formed so as to be freely inserted into and removed from the main body cabinet ,
A shaft penetrating from the front surface of the tray on the back surface side of the disk receiving surface and having a gear groove in a part thereof, and a concave step of the tray so that one end is positioned on the back surface side and the other end is positioned on the disk receiving surface side. A disc fall prevention piece having a gear groove mating with the gear groove of the shaft on one surface thereof, and moving the operating portion of the shaft located on the front surface of the tray back and forth The disc apparatus is characterized in that the disc fall prevention piece is movable in the center direction of the disc receiving surface.