JP2001351300A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely load a disk itself on a tray in an optical disk device, in which a cartridge or the disk can be loaded. SOLUTION: A nearly V-shaped notch is provided in the front surface of the tray 5, and a rib 5c for sliding down the disk is provided to a part of the notch. Furthermore, a guide member 8 for sliding down the disk is provided in a portion along the periphery of a circular step part 5a of the tray 5. The guide member 8 is supported movably to the tray with a spring 9 in a Z-axis direction and is hidden in the Z-axis direction by the cartridge, when the cartridge is placed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device capable of loading either an optical disk alone or a cartridge containing an optical disk, and more particularly to an optical disk device having a tray structure.

[0002]

2. Description of the Related Art Among optical disk devices, there are devices capable of loading either a disk alone (bare disk) or a cartridge containing a disk. For example, a DVD-RAM device released in recent years is an example. Discs used alone include read-only CDs (Compact Discs), CD-Rs, and DVD-ROMs. Many cartridges use a recordable medium such as a DVD-RAM, and the cartridge is often used to protect a disk from dust and dirt from human operation.

The disk loading mechanism of these disk units and disk devices (hereinafter abbreviated as both types of loading devices) in which cartridges can be loaded has two types, a horizontal type and a vertical type, and the disk type has a disk diameter of 120 m.
There are three types: a large diameter of m, a small diameter of 80 mm, and a cartridge, and loading is possible even in the form of each combination. (However, in the case of a vertical installation, an adapter is required to set a single disk of small diameter. Is necessary). If a dedicated (separate) loading mechanism is provided for a single disk and a cartridge, the number of mechanical components and the like increase, and the size of the apparatus increases. is there.

[0004] The trays of both types of loading devices have a step with a step that is substantially larger than the outer dimensions of each of the large-diameter disk and the small-diameter disk for mounting and positioning the single disk from the surface on which the cartridge is mounted on the tray. Having. For example, the apparatus described in Japanese Patent Application Laid-Open No. 9-7267 has a main tray for mounting a cartridge and a sub-tray for mounting a single disk, and when a single disk is loaded, the disk is almost the same height as when the cartridge is loaded. The sub-tray is lifted by the sub-tray urged by the spring as described above, and when the cartridge is loaded, the sub-tray is stored downward by the cartridge.

Further, in the device described in Japanese Patent Application Laid-Open No. 9-91821, the mounting surface of the disk is inclined so that the angle of engagement between the disk and the turntable to be clamped substantially coincides with each other.

The level difference of the tray is adjusted so that the disk does not fall off the level difference due to vibration or the like during loading of the disk, and when the disk is placed, it can be confirmed by being caught on the level difference without looking at the mounting position. Depth (height) is required. The deeper the step, the more the disc does not fall off and the operator can easily catch the disc, but the thickness of the tray increases accordingly. In particular, in the case of both types of loading devices, the thickness of the cartridge is required in addition to the thickness of the step of the single disk, so the thickness of the tray becomes thicker than the tray of a single disk dedicated device represented by a CD-ROM device. I will. Conversely, if the depth of the step is small, the disc will not be properly placed in the tray step, and the disc will not be able to properly engage with the turntable, which may lead to mis-chucking, damage to the disc, and failure of the device.

In these apparatuses, a tray is provided with a member for securely mounting a single disk in a step when the apparatus is used vertically. When the cartridge is used, it is stored in the lower part of the cartridge. When a single disk is used, the member is pulled out to hold and position the outer shape of the disk.

[0008]

If the disk tray is made thinner due to space restrictions, it is difficult to obtain a sufficient depth of the step. For example, when a single disk is placed out of the step and the disk is placed, the disk does not enter the step. There was a risk of loading in the state. In the method using the sub-tray, the main tray and the sub-tray are stacked when the cartridge is loaded, and the mounting of pickups and mechanical parts becomes a problem because the thickness of the entire tray increases.
As a result, the size of the device may be increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disk apparatus capable of easily and reliably mounting a single disk on a tray in an apparatus capable of loading both types.

[0010]

In order to achieve the above-mentioned object, a rib for sliding down a disk is provided in a notch at the front of the tray. It is important that the rib be provided at a portion that does not interfere with the cartridge when the cartridge is set. Further, a member for sliding the disk down into the step is provided at a part of the tray along the circumference of the step of the disk outer shape. This member is supported on a tray by a spring, and is fixed so as to be movable in the axial direction of the optical disk. For this reason, when a cartridge is placed, it is pushed into the lower part of the tray by the cartridge, and does not hinder the placement of the cartridge.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing a disk device of the present invention. The exterior of the disk device 1 is mainly composed of a top case 2, a front panel 3, and a bottom case 4. The figure shows a state where the tray 5 has been pulled out of the apparatus. The tray 5 has a step 5a for a large-diameter disk and a step 5b for a small-diameter disk for positioning a single disk. The vertical arms 6 and 7 are movably fixed to the tray 5 and are moved by a spring (not shown) in the axial direction (Z
Direction). The drawing shows the state where the ends of the vertical arms 6 and 7 are latched on the hooks of the tray 5 and stored in the tray 5, and when the apparatus is used horizontally or when the cartridge is loaded in the tray 5. I have.
When loading the single disk by using the apparatus vertically, the latches of the vertical arms 6, 7 and the tray 5 are released, and the disk is inserted between the vertical arms 6, 7 and the tray 5 and held. The disc holder 8 is located along the outer periphery of the tray step 5a, and guides the positioning of a single disc. A substantially V-shaped notch is provided substantially at the center of the front surface 5d of the tray 5. This is to make it possible to easily remove the cartridge set in the tray 5 from the tray 5. If the cartridge becomes narrower in width from the front surface 5d, from which the disk is taken out, toward the center of the disk. For example, it may be V-shaped or U-shaped. Even if this notch is rectangular, the effect that the cartridge can be easily removed from the tray 5 is the same, so that it is included in the concept of the substantially V-shape.

FIG. 2 is a rear view of the tray of the present invention. The disc holder 8 is welded integrally with a spring 9, and the spring 9 is welded to the tray 5. The vertical arms 6 and 7 are urged by a spring 10 welded to the tray 5. The gear 20 is used to move the tray in and out by a gear (not shown) driven by a motor.

FIG. 3 is a top view and a side sectional view showing a state where the cartridge is mounted on the tray 5. The cartridge 11 is shown by an alternate long and short dash line so that the relationship with the tray 5 can be easily understood. When the cartridge 11 is mounted on the tray 5, the slider 13 biased by the spring 12 moves. In this state, the vertical arms 6 and 7 described above
At 1, it is pressed against the lower surface and latched on the tray 5. Even when the apparatus is placed horizontally, loading is performed by the same operation and operation. Disc holder 8 is cartridge 1
1, the tray 5 is pressed downward (−Z direction), and is held at the same position as the thick portion of the tray 5. The tray taper 5c is provided at a position that does not interfere with the cartridge 11, that is, on the front surface 5d side of the set cartridge.
These constitute a transport mechanism for the tray 5.

FIG. 4 shows the state of the disc holder 8 when the cartridge 11 is mounted.
The A 'cross section is shown. Since the disc holder 8 is fixed to the tray 5 by the spring 9, the disc holder 8 is pressed by the cartridge 11 and moves in the -Z direction. What is important here is that the disc holder 8 after moving is moved to the lower surface B of the tray 5.
It does not protrude below. If it protrudes, it interferes when the tray 5 is inserted into the disk device 1.

FIG. 5 is a top view and a side sectional view showing a state where a single disk is mounted on a tray when the apparatus of the present invention is used horizontally. In this state, the latches between the vertical arms 6, 7 and the tray 5 can be loaded in either case.
When the disc 14 is placed at a position away from the step 5a, the disc 14 rides on the tapered rib 5c of the tray 5 and slides down into the circumference of the step 5a due to its own weight and vibration.

FIG. 6 is a diagram for further explaining the state in which the disk slides down in FIG. As shown in FIG. 6A, even if the operator mounts the disk 14 on the tray 5 to some extent, the tape 14c is initially formed diagonally. Sliding down, disc holder 8 as shown by the arrow in Fig. 6 (2).
And set at a predetermined position in the step 5a for the large-diameter disk. In this manner, the disk 14 is stored in the step 5a of the tray 5, and mounting errors can be reduced. It is important that the shape of the disc holder 8 is provided with an inclined portion on a part thereof (the inner peripheral side of the disc). The material is preferably a plastic material or the like so as not to damage the disk 14. The spring 9 is an elastic means formed by, for example, stamping a metal plate.
It is important to set the disc so that it does not sink under the weight of the disc alone, but sinks under the weight of the cartridge. The material and shape of the spring are not limited to the metal plate, and a known spring means may be used as long as a similar effect can be obtained.

The position of the disk holder 8 in the radial direction of the disk 14 can be determined similarly to the step 5a of the tray, but since the height in the thickness direction (+ Z axis direction) is sufficiently higher than the thickness of the disk. For example, when the operator mounts the disc 14 on the tray 5, the disc setting position is restricted not only by the step 5 a but also by the disc holder 8, so that the mounting position is confirmed only by the step 5 a. It can be set easily and surely as compared with the case.

FIG. 7 is a partial top view of a tray of a disk drive showing another embodiment of the present invention. In the above embodiment, the disc holder 8 is provided at one place, but may be provided at two places or plural places as shown in FIG. However, when the cartridge is placed, it is important to provide the cartridge at a position not corresponding to the concave portion of the cartridge so that the cartridge is pushed down by the cartridge and sinks. The tapered rib 5c is formed only at the position 21 and is not formed at the position 22. This is because forming the cartridge up to the position 22 interferes when setting the cartridge.

FIG. 8 is a partial top view of a tray of a disk drive showing still another embodiment of the present invention. This example shows an example in which there is no tapered rib 5c. In the embodiment of FIGS. 1 to 7, the tapered rib 5c of the tray is formed, but the wall 5d on the front of the tray is formed diagonally (lower from the tray front toward the center of the disk), and the disk is formed in the same manner as the tapered rib 5c. Can be guided in the direction of the disc holder 8. In this way, the same effect can be obtained even if there is no rib in the vicinity of the substantially V-shaped notch.

[0020]

According to the present invention, the disk alone slides due to the weight of the disk and the vibration at the time of loading, and is reliably dropped into the step of the tray, thereby preventing mischucking. The reliability of the device can be improved. In addition, since it is possible to easily and surely check the mounting position of the disk on the tray, the operability of the disk device is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disk device showing one embodiment of the present invention.

FIG. 2 is a rear view of a tray of the disk device showing one embodiment of the present invention.

FIGS. 3A and 3B are a top view and a side sectional view showing a state in which a cartridge is mounted on a tray of the disk device according to the embodiment of the present invention; FIGS.

FIG. 4 is a view showing a cross section taken along the line A-A ′ in FIG. 3;

FIG. 5 is a top view and a side sectional view showing a state where a single disk is mounted on a tray when the disk device according to the embodiment of the present invention is used horizontally.

FIG. 6 is a side sectional view showing a state where a single disk is mounted on a tray when the disk device according to the embodiment of the present invention is used horizontally.

FIG. 7 is a partial top view of a tray of a disk device showing another embodiment of the present invention.

FIG. 8 is a partial top view of a tray of a disk device showing another embodiment of the present invention.

[Explanation of symbols]

5: tray, 5a: tray step, 5c: tray taper rib, 6, 7: vertical arm, 8 ...
Disc holder

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Yoshihiro Fukagawa 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa F-term in Hitachi Image Information System Co., Ltd. 5D046 AA01 AA12 AA16 CA16 CB11 DA08 EA02 EA06 EA11 EB04 GA15 HA06

Claims (4)

[Claims] 1. An optical disk apparatus having a single disk, a tray into which a cartridge containing a disk can be loaded, and a transport mechanism for transporting the tray, wherein the tray mounts the single disk at a predetermined position. And a positioning portion having an inclined portion for guiding the disc alone provided on the outer peripheral side of the step portion and between the front surface of the tray to the inner peripheral side of the step portion. The optical disc device, wherein the positioning portion is movable in an axial direction of the disc, and is pushed into the tray when the cartridge is set. 2. The optical disk device according to claim 1, wherein said positioning portion is fixed to said tray by elastic means. 3. A substantially V-shaped notch is provided on a front surface of the tray, and the notch has a slope formed from the front surface toward the center of the optical disk. 3. The optical disc device according to 2. 4. The inclination of the notch is determined by the Z of the positioning portion.
The optical disk device according to claim 3, wherein the optical disk device is provided at a position higher than an axial end.