JP3842559B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk apparatus having a mechanism for loading a recording disk such as an optical disk as a recording medium and clamping it at a clamping position, and in particular, recording from a tray even when the apparatus main body is in both horizontal and vertical positions. The present invention relates to a disk device configured to prevent the disk from falling.
[0002]
[Prior art]
As a recent trend, in order to save installation space in a personal computer (hereinafter referred to as a personal computer), the main body of the personal computer is long in the vertical direction and thin in the horizontal direction. There are many commercially available products that are so-called vertical installations that become longer. For this reason, as a matter of course, it is necessary to ensure that a disk device that drives a recording disk as a peripheral device built in the personal computer body operates without problems with respect to a vertical installation.
[0003]
On the other hand, loading methods for a recording disk in a disk device are roughly divided into a tray method in which a recording disk is mounted on a concave tray and a caddy method in which the recording disk is stored in a case (caddy). As a tendency, a tray system having a simple configuration and excellent operability has become mainstream.
[0004]
However, in this tray system, since the recording disk is only mounted on the concave tray, there is no problem in the horizontal installation where the tray is horizontal, but in the vertical installation, the recording disk is removed from the tray. There is a risk of falling off. Therefore, as in the disk device described in JP-A-8-124264, a plurality of claw-shaped protrusions are provided on the upper surface of the outer peripheral portion of the concave disk mounting portion formed on the tray. A structure in which a part of the recording disk is locked by an object so that the recording disk can be supported in a vertical posture or a structure similar to this structure is employed.
[0005]
[Problems to be solved by the invention]
In the structure in which the claw-like protrusion is provided on the upper surface of the outer peripheral portion of the concave disk mounting portion as in the prior art, the depth of the concave shape (the depth of the tray) must be increased. . That is, it is necessary to lift the recording disk in the thickness direction during clamping so that the recording disk loaded at a predetermined position does not come into contact with the tray during rotation. The lifting amount of the recording disk is required to be about 1 mm in consideration of the amount of surface deflection of the recording disk, the flatness of the tray, the variation of parts, and the like. Furthermore, the space from the upper surface of the recording disk to the claw-like protrusions for locking a part of the recording disk is also required in consideration of the surface deviation of the recording disk. For this reason, it can be said that reducing the thickness of the tray is a difficult problem in practice.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems, and in a disk apparatus having a mechanism for loading a recording disk such as an optical disk and clamping it at a predetermined position, it can be placed either horizontally or vertically without complicating the configuration. It is an object of the present invention to provide a disk device that prevents the recording disk from dropping from the tray on which the recording disk is loaded during loading.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention is directed to a loading member that moves a tray on which a recording disk is placed to a loading position by a tray rail member, and a clamp that clamps the recording disk to a rotational drive member at the loading position. And a disk holding surface in the tray, the disk holding surface of the tray, and the disk. A space is formed by providing a distance from the inner surface of the opposing wall of the groove facing the holding surface, and the loading operation is performed while restricting the movement of the recording disk in the space. Without a special structure, the tray rail member can be placed vertically or horizontally with a simple structure. Can have the drop prevention function of the recording disc unrelated to state, further, it is possible to tray thinner as compared with the structure in which the conventional claw-like projections.
[0008]
According to a second aspect of the present invention, in the disk device according to the first aspect, a notch for allowing the recording disk to move upward is provided on the inner surface of the opposing wall of the groove at the clamp position of the recording disk. Even with the structure of the tray rail member according to the first aspect, the space for moving the recording disk upward during the clamping operation can be secured with a simple structure.
[0009]
According to a third aspect of the present invention, in the disk device according to the second aspect, the notch portion is provided with a regulating member that moves up and down in conjunction with the raising and lowering operation of the recording disk and restricts the excessive rise of the recording disk. With this configuration, it is possible to prevent the recording disk from dropping from the notch portion of the tray rail member without interfering with the original movement of the recording disk by the restriction member.
[0010]
According to a fourth aspect of the present invention, in the disk device according to the third aspect, the restricting member has a cantilever structure that moves up and down in conjunction with the lifting and lowering operation of the recording disk, and the free end portion of the cantilever is placed over the recording disk. It is characterized by a regulation part that regulates the rise.
[0011]
According to a fifth aspect of the present invention, in the disk device according to the first aspect, the urging member that applies a urging force in a direction opposite to the moving direction of the turntable to the clamp member that clamps the recording disk by the movement of the turntable. With this configuration, the opposing distance between the clamp member and the tray can always be held and urged to the minimum, and thus the movement of the recording disk can be restricted.
[0012]
According to a sixth aspect of the present invention, in the disc device according to the fifth aspect, the urging member is constituted by a leaf spring that elastically presses the clamp member.
[0013]
According to a seventh aspect of the present invention, in the disk device according to the fifth or sixth aspect, the rotation center of the rotatable clamp member and the urging load point of the urging member are made to coincide with each other. Even if the clamp member is configured to be rotatable, smooth rotation is performed.
[0014]
According to an eighth aspect of the present invention, in the disc device according to the fifth aspect, the urging member is constituted by a magnetic force generator that attracts the clamp member by magnetic force.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is an exploded perspective view showing the entirety of a disk device for explaining a first embodiment of the present invention, and FIG. 2 is a partial cross-sectional view showing a main part in the first embodiment.
[0017]
In FIG. 1, 1 is a tray for holding a disk-shaped recording medium (CD-R / RW media, hereinafter referred to as a recording disk) D on the upper surface, 2 is a loading mechanism for transporting the tray 1 to a recording / reproducing position, A tray rail that guides the tray 1 in the recording / reproducing position direction, 4 is an optical head that performs recording / reproducing with respect to the recording disk D, 5 is a spindle motor that is a rotational drive member that rotationally drives the recording disk D, and 6 is recording. A clamp member 7 for holding the recording disk D conveyed to the reproduction position on the turntable of the spindle motor 5, and a printed circuit board on which electric circuit components of the control / drive system are mounted. Further, the outer case of the disk device is composed of a bottom cover 10, a top cover 11, and a front panel 12.
[0018]
Further, the disk device is provided with an optical head lifting / lowering means (not shown) for placing the recording disk D conveyed to the recording / reproducing position on the turntable of the spindle motor 5.
[0019]
As shown in FIG. 2, the tray rail 3 is provided with a U-shaped groove 15 in which both side end portions 1 a of the tray 1 slide so as to extend in the tray moving direction (recording / reproducing position direction). Further, as shown in FIG. 3, a space H is provided by providing a distance H between the disk holding surface 16a of the disk mounting recess 16 in the tray 1 and the opposing wall inner surface 15a in the groove 15 facing the disk holding surface 16a. The loading operation is performed while restricting the movement of the recording disk D in the thickness direction in the space 17.
[0020]
In this way, by restricting the movement of the recording disk D in the thickness direction, the recording disk D is not only used in the horizontal state shown in FIG. It is possible to prevent the tray 1 from falling off.
[0021]
FIG. 4 is a plan view showing the configuration of the main part of the disk apparatus for explaining the second embodiment of the present invention, and FIG. 5 is an explanatory view showing the front configuration of the main part of the second embodiment. In the disk device, it is necessary to lift the recording disk D in the thickness direction at the time of clamping so that the recording disk D and the tray 1 do not come into contact with each other during rotation. In the first embodiment, the tray rail 3 is used. Since the groove 15 has an upper wall, it is not possible to secure a space for the recording disk D to move upward during clamping. Therefore, in the second embodiment, the recording disk D can be moved upward by providing a notch 20 on the upper wall surface of the groove 15 of the tray rail 3 so that the recording disk D can move upward at the clamp position. Thus, the clamping operation is performed.
[0022]
However, in the second embodiment, the recording disk D moves in the direction of the cutout portion 20 in the tray rail 3 due to an impact at the time of releasing the clamp or an external vibration, and the recording disk is unloaded when the tray 1 is unloaded. There is a possibility that D may fall off without being placed on the normal position of the tray 1. For this reason, in the second embodiment, a regulating member 21 that moves up and down in conjunction with the raising and lowering operation of the recording disk D and regulates the excessive rise of the recording disk D is installed in the notch portion 20. This prevents the recording disk D from dropping out of the groove 15 without interfering with the original movement of the recording disk D.
[0023]
The regulating member 21 may be of various mechanisms. As shown in FIG. 5, the regulating member 21 has a side-shaped cantilever structure that moves up and down in conjunction with the raising and lowering operation of the optical head 4 and the recording disk D. A mechanism that uses the free end portion 21a of the cantilever as a restricting portion that restricts the excessive rise of the recording disk D, or although not shown, presses or releases the side intermediate portion of the cantilever structure. A structure that allows the restriction portion to move is also conceivable.
[0024]
FIG. 6 is an explanatory view showing the configuration of the main part of the disk device for explaining the third embodiment of the present invention. The third embodiment is different from the configuration of the first embodiment or the second embodiment. A configuration in which a biasing member 23 that biases the clamper 22 of the clamp member 6 that holds the recording disk D on the turntable of the spindle motor 5 in the direction of the tray 1 (in the direction of the arrow in the drawing) until the clamp operation starts is provided. The gap H in the thickness direction of the recording disk D between the lower surface 22a of the clamper 22 and the disk holding surface 16a of the disk mounting recess 16 in the tray 1 is suppressed to a necessary minimum width, so that the recording disk D The movement in the thickness direction is restricted so that the recording disk D is prevented from falling off the tray 1 during loading when used in a vertical position. There.
[0025]
As the urging member 23, a leaf spring having a structure in which a part of the clamp member 6 is elastically pressed as described above can be employed.
[0026]
FIG. 7 is an explanatory diagram showing the configuration of the main part of the urging member in the disk device of the fourth embodiment of the present invention, and FIG. 8 is an explanatory diagram showing the state after clamping in the disk device of the fourth embodiment. 22, a clamper holding plate 24, a clamper pressing portion 25, and a leaf spring member 26 as an urging member 23 provided on the clamper holding plate 24 and pressing the clamper 22 via the clamper pressing portion 25. The clamper 22 is biased by a magnetic force in the direction opposite to the turntable ascending direction (arrow direction) before clamping, and the thickness of the recording disk D is the same as in the third embodiment. The movement of the direction is restricted, and the recording disk D is prevented from dropping from the tray 1 during loading even when used vertically.
[0027]
In the fourth embodiment, as shown in FIG. 8, when the clamping operation is started, the clamper 22 is moved (lifted) by the optical head raising means (not shown), and the recording disk D is clamped.
[0028]
Further, by making the rotation center of the clamper 22 coincide with the urging load point of the urging member 23, even if the clamper 22 can be rotated, the rotation can be smoothly performed without hindering the rotation. be able to.
[0029]
FIG. 9 is an explanatory diagram showing the configuration of the main part of the urging member in the disk device according to the fifth embodiment of the present invention. FIG. 10 is an explanatory diagram showing the state after clamping in the disk device according to the fifth embodiment. In the fifth embodiment, the clamper 22 is configured as a biasing member that biases the clamper 22 in the direction opposite to the direction in which the spindle motor 5 is turned up.
[0030]
In FIGS. 9 and 10, 28 is a clamper holding metal plate, and 29 is a magnetic body disposed at a position facing the clamper 22, and biases the clamper 22 by the magnetic force of the magnetic body 29. For this reason, the clamper 22 is biased in the direction opposite to the turntable ascending direction (arrow direction) by the magnetic force before clamping, and the thickness of the recording disk D is the same as in the fourth embodiment. The movement of the direction is restricted, and the recording disk D is prevented from dropping from the tray 1 during loading even when used vertically.
[0031]
Also in the fifth embodiment, as shown in FIG. 10, when the clamping operation is started, the clamper 22 is lifted upward by the optical head raising means (not shown), and the recording disk D is clamped.
[0032]
Each of the embodiments of the present invention can also be applied to a changer type disk device as shown in FIG. That is, the changer type disk device can be loaded with a magazine 32 for storing a plurality of trays 31 for holding recording disks D in a stacked manner, and the opening 34 for inserting the magazine 32 into the drive body 33 of the disk device. A magazine holding unit 35 for holding the magazine 32 inside the drive main body 33, a slider mechanism 36 for pulling out the selected recording disk D, a loading mechanism 37 for moving the selected recording disk D to a recording / reproducing position, An optical head 38 for recording / reproducing, an optical head lifting / lowering means (not shown) for placing the recording disk D transported to the recording / reproducing position on the turntable of the spindle motor 39, and holding the recording medium on the spindle motor In order to move and guide each tray 31 and the clamping unit etc. Is made of mechanism 36 (not shown) provided in the portion tray rails (those described above in each embodiment).
[0033]
【The invention's effect】
As described above, according to the present invention, the tray rail member can be provided with a function of preventing the recording disk from dropping regardless of whether the tray is placed vertically or horizontally without using a special structure. Furthermore, the tray can be made thinner as compared with the conventional structure having a claw-like projection.
[0034]
Further, since the opposing distance between the clamp member for clamping the recording disk and the tray can be always kept to a minimum, the movement of the recording disk during loading is restricted, and the recording disk is prevented from falling. It can prevent more reliably.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing the entirety of a disk device for explaining a first embodiment of the present invention. FIG. 2 is a partial cross-sectional view showing a main part in the first embodiment. FIG. 4 is a plan view showing a configuration of a main part of a disk device for explaining a second embodiment of the present invention. FIG. 5 is a plan view showing a main part of the second embodiment. FIG. 6 is an explanatory diagram showing the configuration of the main part of the disk device for explaining the third embodiment of the present invention. FIG. 7 is an urging force in the disk device of the fourth embodiment of the present invention. Explanatory drawing which shows the structure of the principal part of a member. FIG. 8 is explanatory drawing which shows the state after the clamp in the disc apparatus of 4th Embodiment. FIG. 9 is the essential part of the urging member in the disc apparatus of 5th Embodiment of this invention. Explanatory drawing which shows the structure of a part. Perspective view for explaining the configuration of a changer-type disk device capable of applying the embodiments of the illustration 11 present invention showing the state after clamping of the disk apparatus of facilities embodiment EXPLANATION OF REFERENCE NUMERALS
1, 31 Tray 2, 37 Loading mechanism 3 Tray rails 4, 38 Optical head 5, 39 Spindle motor 6 Clamp member 15 Groove 15 a Groove facing wall inner surface 16 Disc mounting recess 16 a Disc holding surface 17 Space portion 20 Notch portion 21 Restriction Member 22 Clamper 23 Biasing member 24 Clamper holding plate 25 Clamper pressurizing portion 26 Leaf spring member 29 Magnetic body

Claims (8)

In a disk device having a configuration including a loading member that moves a tray on which a recording disk is mounted to a loading position by a tray rail member, and a clamp member that clamps the recording disk to a rotation driving member at the loading position.
A groove in which the side end of the tray slides is provided in the tray rail member so as to extend in the tray moving direction, and a disk holding surface in the tray and an inner surface of the opposing wall in the groove facing the disk holding surface A disc device characterized in that a space is formed by providing a distance between and a loading operation is performed while restricting movement of the recording disc in the space. 2. The disk apparatus according to claim 1, wherein a notch portion is provided on the inner surface of the opposing wall of the groove at the clamp position of the recording disk to allow the recording disk to move upward. 3. The disk device according to claim 2, wherein a restriction member is installed in the cutout portion to move up and down in conjunction with the raising and lowering operation of the recording disk and to regulate the excessive rise of the recording disk. 4. The cantilever structure in which the restricting member is moved up and down in conjunction with the raising and lowering operation of the recording disk, and the free end portion of the cantilever is used as a restricting portion that restricts an excessive rise of the recording disk. The disk device described. 2. The disk apparatus according to claim 1, further comprising an urging member that applies an urging force to the clamp member that clamps the recording disk by moving the turntable in a direction opposite to the moving direction of the turntable. . 6. The disk device according to claim 5, wherein the urging member is constituted by a leaf spring that elastically presses the clamp member. 7. The disk device according to claim 5, wherein a rotation center of the rotatable clamp member is matched with an urging load point of the urging member. 6. The disk apparatus according to claim 5, wherein the urging member is constituted by a magnetic force generator that attracts the clamp member by magnetic force.

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