JP2003178503A - Disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized and low profile disk apparatus provided with a disk automatic loading/ejecting mechanism without the need for a clamp member (clamper) on an upper face of a disk. <P>SOLUTION: The disk apparatus includes a turntable having a surface on which a disk is to be placed and being rotatable around a rotation axis; a disk holding mechanism which can be in a first state of holding the disk on the turntable so as to be rotatable around the rotation axis and a second state which is different from the first state; a first contact member; and a moving mechanism for relatively moving the first contact member and the turntable with respect to each other. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device for recording or reproducing a disk-shaped recording medium such as a CD or a DVD, and more particularly to a peripheral device for home video equipment or a computer for automatically loading / unloading a disk. The present invention relates to thinning of a disk device used as a disk.

[0002]

2. Description of the Related Art In response to recent miniaturization and thinning of computers, there is an increasing demand for miniaturization and thinning of disk devices such as CD-ROMs mounted therein.
Generally, in a disc device that records / reproduces an exchangeable disc-shaped recording medium such as a CD or a DVD, a means for mounting / dismounting the disc on a turntable on which the disc is placed is required to replace the disc. . On the other hand, in order to provide more comfortable operability, there is a demand for a disk device including an automatic disk loading / unloading means that does not require the disk loading / unloading operation by the operator.

Conventionally, as a means for automatically mounting / releasing a disc, after the disc is transported by a transport mechanism, the disc is held from above and below by a turntable on the lower face of the disc and a clamp member called a clamper on the upper face of the disc for holding the disc. The disc was held or released by sandwiching it.

A disk device having such a function is
It is disclosed in Japanese Patent Laid-Open No. 10-116458. In this publication, a loading mechanism conveys a disc to a turntable, and after placing the disc on the turntable, a clamp member using a magnetic body presses the disc against the turntable from above the disc. There is described a disk device which holds a disk on a turntable and releases the disk by separating the clamp member or the turntable from the disk against the magnetic force.

Further, in Japanese Patent Laid-Open No. 11-31350, a loading mechanism conveys a disc to a turntable, mounts it on the turntable, and then clamps the clamp member by the elastic force of a spring from above the disc. The disk is held on the turntable by pressing to, and the clamp member or the turntable is separated from the disk in the direction of removing the elastic force of this spring,
A disk device for opening a disk is described.

[0006]

However, in the conventional disk device having the above-described structure, a thick clamp member (clamper) provided on the disk upper surface exists when the disk is automatically loaded / unloaded. In addition, there is a problem that it is difficult to reduce the thickness of the disk device.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a small and thin disc device having an automatic disc loading / unloading mechanism which does not require a clamp member (clamper) on the disc upper surface.

[0008]

According to the present invention, there is provided a turntable having a surface on which a disc is placed, the turntable being rotatable about an axis of rotation, and the disc being rotatable about the axis of rotation. A disc holding mechanism having a first state for holding the disc on the turntable and a second state different from the first state; and a first contact member,
A moving mechanism that moves the turntable relative to the first contact member, and the disk holding mechanism is in the second state, the moving mechanism is In a state in which the turntable is moved relative to the first contact member so that the contact member contacts the disc, and the first contact member contacts the disc, The moving mechanism is configured to move the first disc in a direction in which the disc is pressed against the turntable.
The abutting member of acts to apply a force to the disc,
As a result, the disk holding mechanism is a disk device in which the state of the disk holding mechanism transits from the second state to the first state, thereby solving the above-mentioned problems.

In one aspect of the present invention, the position of the first contact member is fixed, and the moving mechanism moves the turntable up and down to move the first contact member with respect to the first contact member. The disk device described above moves the turntable relatively.

[0010] One aspect of the present invention is in the second state state at time t ₁ of the disk holding mechanism, the time t ₁
At time t ₄ after that, the state of the disk holding mechanism transits from the second state to the first state, and at time t ₅ after time t ₄ , the state of the disk holding mechanism changes to the first state.
In the disk device described above, the turntable is moved relative to the first contact member so as to be in the state.

One aspect of the present invention is the disk device described above, wherein the disk has an inner peripheral area, and the first contact member contacts the inner peripheral area of the disk. .

One aspect of the present invention is the disk device described above, wherein the first abutting member is a protrusion provided on a part of a housing of the disk device.

One aspect of the present invention is the disk device described above, wherein the protrusion has a ring shape.

One aspect of the present invention is the disk device described above, wherein the first abutting member is a protrusion provided on a part of an information device that houses the disk device.

One aspect of the present invention is the disk device described above, wherein the protrusion has a ring shape.

In one aspect of the present invention, the inner peripheral region is
The disc device described above is a non-recording area of the disc.

In one aspect of the present invention, the disk device further includes an elevating base that supports the turntable via an elastic member, and the moving mechanism elevates the elevating base to turn the turntable. It is the disk device described above that moves up and down the table.

In one aspect of the present invention, the elastic member is
The disk device described above also serves as a vibration buffer member that buffers the vibration of the disk device.

According to one aspect of the present invention, the turntable is substantially parallel to the first abutting member when the first abutting member and the disk abut each other. It is a disk device.

According to one aspect of the present invention, the turntable has a predetermined angle with respect to the first contact member when the first contact member and the disk contact each other. It is the disk device described above.

Further, the present invention has a turntable having a surface on which a disc is placed, the turntable rotatable about an axis of rotation, and the turntable turning the disc so that the disk can rotate about the axis of rotation. With respect to the disc holding mechanism having a first state of being held on the table and a second state different from the first state, a second contact member, and the second contact member. A moving mechanism that relatively moves the turntable, and when the disk holding mechanism is in the first state, the moving mechanism is
So that the second contact member contacts the disc,
In the state where the turntable is moved relative to the second contact member and the second contact member is in contact with the disc, the moving mechanism causes the disc to move away from the turntable. Direction, the second abutting member operates so as to apply a force to the disc, whereby the state of the disc holding mechanism transits from the first state to the second state. Yes, this solves the above problem.

In one aspect of the present invention, the position of the second contact member is fixed, and the moving mechanism moves the turntable up and down to move the second contact member with respect to the second contact member. The disk device described above moves the turntable relatively.

[0023] One aspect of the present invention is the first state in the state the time t ₇ of the disk holding mechanism, a time t ₇
At time t ₈ later, the state of the disk holding mechanism transits from the first state to the second state, and at time t ₉ after time t ₈ the state of the disk holding mechanism changes to the second state.
The disk device according to the above, wherein the turntable is moved relative to the second contact member so as to be in the state.

In one aspect of the present invention, the disc has an inner peripheral area and an outer peripheral area, the inner peripheral area and the outer peripheral area are non-recording areas, and the second contact member is the The disk device described above is in contact with the inner peripheral area or the outer peripheral area.

One aspect of the present invention is the disk device described above, wherein the second contact member is a protrusion provided on a part of the housing of the disk device.

In one aspect of the present invention, the disk device further includes an elevating base that supports the turntable via an elastic member, and the moving mechanism elevates the elevating base to turn the turntable. It is the disk device described above that moves up and down the table.

In one aspect of the present invention, the elastic member is
The disk device described above also serves as a vibration buffer member that buffers the vibration of the disk device.

In one aspect of the present invention, the disc device includes at least two second abutting members, the disc holding mechanism includes a plurality of holding tabs, and the at least two second abutting members are provided. The contact member is in contact with the disk, the angle at which the plurality of holding claws are arranged about the rotation axis is such that the at least two second contact members are arranged about the rotation shaft. The disk device described above is different from the above described angle.

One aspect of the present invention is the disk device described above, wherein the plurality of holding claws are arranged at equal intervals on a circumference centered on the rotation axis.

The operation will be described below.

According to the disc apparatus of the present invention, the disc can be automatically attached / detached even without the conventional configuration in which a clamp member (clamper) is used on the upper face of the disc to sandwich it with the turntable on the lower face of the disc. .

Therefore, it is not necessary to form a clamp member (clamper), so that the number of parts can be reduced. Furthermore, since the thickness of the clamper is not required,
The disk device can be thinned.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is an exploded perspective view showing the structure of a disk device 1000 according to Embodiment 1 of the present invention.

The disk device 1000 includes a turntable 110, a disk holding mechanism 120 arranged on the turntable 110, a first contact member (disk locking contact member) 215, and a second contact member. And a member (a disk removing contact member) 225.

The turntable 110 has a surface on which the disc 10 is placed, and is rotatable about the rotation axis A.

The disc holding mechanism 120 includes a hub portion 121.
A first state in which the disc 10 is held on the turntable 110 so that the disc 10 can rotate about the rotation axis A, and a first state. Have different second states. The hub portion 121 is fitted in the center hole of the disk 10 and holds the holding claw 122 and the elastic member 123 that biases the holding claw 122.
Thus, the disc 10 is held on the turntable 110.

The first contact member 215 is the same as the first embodiment.
Then, the upper housing 210 forming the outer shell of the disk device 1000
It is a ring-shaped protrusion provided on a part of the disk and contacts the non-recording area which is the inner peripheral area of the disk 10. Also,
The first contact member 215, which is a ring-shaped protrusion,
A slope 230 for guiding the disk 10 to the disk holding mechanism 120 is provided. By this slope 230, the disc conveying means (not shown) can smoothly introduce the disc 10 above the turntable 110. However, the first contact member 215 is not limited to such a form, and may have any other form as long as it makes contact with the non-recording region, which is the inner peripheral region of the disc 10.

In the first embodiment, the second contact member 225 is a rod-shaped protrusion provided on the lower housing 220 that forms the outer shell of the disk device 1000, and is located in the inner or outer peripheral area of the disk 10. Abutting on a certain non-recording area. However, the second contact member 225 is not limited to such a form, and may have any other form as long as it makes contact with the inner peripheral region or the outer peripheral region of the disk 10. Further, a plurality of second contact members 225 may be provided.

The disk device 1000 further comprises a moving mechanism 300 for moving the turntable 110 relative to the first contact member 215 or the second contact member 225. The moving mechanism 300 includes the turntable 11
0 may move, or the first contact member 215 or the second contact member 225 may move. Alternatively, the turntable 110 and the first contact member 215 or the second contact member 225.
Both of them may move. Preferably, the moving mechanism 300 is an elevating means for elevating the turntable 110.

The moving mechanism 300 is shown in FIGS.
~ Shown in FIG.

The moving mechanism 300 includes a disk holding mechanism 12.
0 is in the second state, the first contact member 2
The turntable 110 is moved relative to the first abutment member 215 so that the abutment 15 abuts on the disc 10. The moving mechanism 300 further moves the turntable 110 relative to the first abutting member 215 even when the first abutting member 215 abuts on the disk 10, so that the first abutting member 215 moves. The contact member 215 is the disk 10
Is pressed in the direction toward the turntable 110, whereby the state of the disk holding mechanism 120 transits from the second state to the first state. In addition, the disk holding mechanism 120
Is in the first state, the second contact member 22
Turntable 1 so that 5 abuts on disk 10.
10 is moved relative to the second contact member 225. Then, even when the second contact member 225 is in contact with the disk 10, the moving mechanism 300 further moves the turntable 110 relative to the second contact member 225, so that the second contact member 225 moves. The contact member 225 is the disk 1
0 is pressed in a direction away from the turntable 110, whereby the state of the disk holding mechanism 120 transits from the first state to the second state.

Further, in FIG. 1, the disk holding mechanism 12 is shown.
And a spindle motor 100 for rotatably driving a turntable 110 having 0 arranged thereon.
The spindle motor support plate 20 for supporting the 0, the lift base 30 for moving the turntable 110 in the vertical direction (arrows 10A, 10B) with respect to the surface of the disk 10 by the moving mechanism 300, and the spindle motor support plate 20. A vibration damping member 40 made of an elastic member such as rubber for supporting is shown.

FIG. 2 is a diagram showing the operation of the disk holding mechanism 120 of the disk device 1000 according to the first embodiment of the present invention. FIG. 2A shows the turntable 110 before mounting the disc 10 on the turntable 110.
The state of the disk holding mechanism 120 after releasing from is shown. FIG. 2B shows a disk 10 with a turntable 11
Disk holding mechanism 120 in the process of being attached to or released from 0
Indicates the state of. FIG. 2C shows a disc holding mechanism 120 when the disc 10 is mounted on the turntable 110.
Indicates the state of.

In the above state, the disc is completely held by the disc holding mechanism as shown in FIG. 2 (c).
Is the first state, and the other states of FIGS. 2A and 2B are the second states.

First, the structure of the disk holding mechanism 120 will be described. Disk device 1 according to Embodiment 1 of the present invention
000 disk holding mechanism 120, a hub portion 121,
The holding claw 122 and the elastic member 123 are arranged on the turntable 110. Hub part 121
Fits in the center hole of the disk 10 and guides the disk 10. The holding claw 122 is movable in a direction projecting from the outer periphery of the hub portion 121 (arrow 120A) or a direction retracting (arrow 120B). An elastic member 123 is connected to the holding claw 122, and when the holding claw 122 engages with the center hole of the guided disk 10, the elastic member 123 projects the holding claw 122 from the hub portion 121 (arrow 120A). Then, the disk 10 is pressed against the turntable 110.

As shown in FIG. 2A, the disk 10 positioned above the turntable 110 is moved to the arrow 10 position.
Push in the B direction. When the center hole of the disk 10 is guided by the hub portion 121, the elastic member 123 is compressed and the holding claw 122 is pulled in the direction of the arrow 120B, and the disk 10 passes through the holding claw 122 as shown in FIG. 2B. To do.
From the state shown in FIG. 2B, the disk 10 is further moved by the arrow 10B.
When pushed in the direction, the elastic member 123 is released from the compression, and the holding claw 122 projects in the direction of the arrow 120A and engages with the central hole of the disc 10. The disk 10 is shown in FIG.
As shown in (c), the elastic member 123 is pressed by the turntable 110 to complete the mounting of the disc 10 on the turntable 110.

On the other hand, in order to release the disc 10 mounted on the turntable 110 from the turntable 110, an operation reverse to the above mounting operation may be performed. That is,
When the mounted disc 10 is pushed up in the direction of arrow 10A, the disc 10 moves from the state of FIG. 2 (c) to the state of FIG. 2 (b) and then to the state of FIG.
0 is released from the disk holding mechanism 120 and released from the turntable 110.

Next, the first embodiment will be described with reference to FIGS.
The disk mounting operation of the disk device 1000 in FIG. FIG. 3 is a diagram showing a state before the disc 10 is mounted on the turntable 110. FIG. 4 is a view showing a state in which the disc 10 is being mounted on the turntable 110. FIG. 5 is a state in which the disc 10 is being mounted on the turntable 110 and the disc 10 is in contact with the first contact member 215. FIG. 6 is a view showing a state after the disc 10 is mounted on the turntable 110. FIG. 7 shows the disk 10 on the turntable 110.
FIG. 6 is a diagram showing a state in which the disk 10 is in a rotatable position after the disk has been mounted. FIG. 8 is a view showing a state in which two types of discs (10, 2010) having different thicknesses are brought into contact with the first abutment member 215 and the discs (1010, 2010) are mounted on the turntable 110. is there.

In FIG. 3, the disc 10 is conveyed by a disc conveying means (not shown) and the turntable 1 is moved.
It is arranged above 10. Here, the center line of the center hole of the disk 10 and the center line of the hub portion 121 substantially coincide with each other. Further, the time at this time is t ₁ and the height of the turntable 110 is h ₁ . Moving mechanism 30 from this position
When the turntable 110 is raised in the direction of the arrow 10A by 0, the holding tabs 12 of the disc holding mechanism 120 are moved.
2 contacts the lower part of the disk 10 (FIG. 4). The time at this time is t _2, and the height of the turntable 110 is h ₂ . If you continue to raise the turntable 110,
The disk 10 continues to move upward while being in contact with the holding claw 122, and the upper surface of the disk 10 eventually becomes the first contact member 21.
5 (FIG. 5). The time at this time is t _3, and the height of the turntable 110 is h ₃ . When the turntable 110 is further raised, the disc 10
The first contact member 215 restricts the movement in the upward direction 10A, but the disc holding mechanism 120 does not
Since the center hole of 0 can be passed, the turntable 110 is further raised. First, while the turntable 110 is rising
The contact member 215 of the disk 10 turns the disk 10 into the turntable 11.
The disk holding mechanism 120 will continue to be pressed against 0.
The holding claw 122 of the disk 10 is held by the elastic member 123.
The upper part of the central hole of the disk is urged, and the mounting of the disk 10 on the turntable 110 is achieved (FIG. 6). At this time, the time is t _4, and the height of the turntable 110 is h ₄ .
When the mounting of the disc 10 is completed, the moving mechanism 300 lowers the turntable 110 to a position where it does not contact the first contact member 215 and the second contact member 225,
The disk 10 can be rotated together with the turntable while being held by the holding mechanism 120 (FIG. 7). At this time, the time is t _5, and the height of the turntable 110 is h ₅ .

By the way, in the operation from the time t _{1 to} the time t ₄ described above, when the discs have different thicknesses, the elastically deformable vibration damping member 40 is provided on the elevating base 30 to turn the discs having different thicknesses. Table 1
It is possible to securely attach to 10. As an example, a thin disk (about 1.1 mm) 1010 is attached to the first contact member 21.
FIG. 8A shows the case where the thick disk (about 1.5 mm) 2010 is pressed against the first contact member 215, and FIG. 8B shows the case where the thick disk (about 1.5 mm) is pressed against the first contact member 215. As is clear from FIG. 8, when the discs have different thicknesses, the height position of the lower surface of each disc when the discs (10, 2010) are pressed against the first contact member 215, that is, the turntable 110 is Height position is different (Fig. 8
Height T1 and height T2 at.

In the disk device 1000 according to the first embodiment, the spindle motor support plate 20 is supported by the elevating base 30 via the vibration damping section 40 which is an elastic member.
The height position of the turntable 110 can be changed by elastically deforming the vibration damping portion 40. Therefore, as shown in FIG. 8, by raising the elevating base 30 to the position of the same height h ₆ via the vibration damping member 40, the disk 10 is always turnedtable regardless of the variation in the thickness of the disk 10. 110 can be mounted.

Further, even when there is an error other than the variation in the thickness of the disk 10 (for example, an error in the height of the disk device), the vibration damping member 40 is elastically deformed, and the height of the turntable 110 is similarly increased. The position can be changed. Accordingly, the vibration damping member 40 is elastically deformed to absorb the variation in the thickness of the disk 10 or the error in the height of the disk device, and the disk 10 is completely pressed against the turntable 110, thereby reliably turning the disk 10. It can be mounted on the table 110. The vibration damping member 40 may have a function of damping the vibration of the disk device.

As described above, the turntable 110
And the disk 10 is pressed against the first contact member 215, so that the disk 10 can be mounted on the turntable 110.

Next, the disk releasing operation of the disk device 1000 according to the first embodiment will be described with reference to FIGS. 7, 9 and 10. FIG. 7 is the same as the diagram used in the description of the disc mounting operation described above, and shows a state in which the disc 10 is in a rotatable position before the disc 10 is released from the turntable 110. Figure 9 shows the turntable 1
FIG. 3 is a diagram showing a state in which the disc 10 is being released from 10. FIG. 10 shows the disk 1 from the turntable 110.
It is a figure which shows the state after opening 0.

The opening operation of the disk 10 is achieved by performing the operation opposite to the mounting operation described above. Disk 10
When the opening operation is started, the disk 10 is fixed to the turntable 110 but rotatable with the turntable 110, and is not in contact with the second contact member 225 (FIG. 7). The time at this time is t _7, and the height of the turntable 110 is h ₇ . In addition,
This height h ₇ is substantially the same as the height h ₅ in the mounting operation described above. Next, when the turntable 110 is lowered in the direction of arrow B by the moving mechanism 300, the disc 1
0 contacts the second contact member 225 (FIG. 9). The time at this time is t _8, and the height of the turntable 110 is h ₈
And Then, when the disk 10 is further lowered,
The second contact member 225 continues to relatively press the disc 10 in the direction away from the turntable 110, and eventually the holding claw 122 of the disc holding mechanism 120 comes out of the central hole of the disc 10 to turn the turntable 110 of the disc 10.
Release is achieved (Fig. 10). At this time, the time is t _9, and the height of the turntable 110 is h ₉ .

In the opening operation of the disk 10,
When the turntable 110 is to be lowered from the state shown in FIG. 7, the turntable 110 follows a process completely opposite to the disc mounting operation described above, so that the turntable 110 is temporarily raised and the disc 10 is moved to the first contact position. Contact member 21
5, the turntable 110 immediately descends. Although the opening operation of the disk 10 is not affected by the temporary rise of the turntable 110, the mechanical means for moving up and down by utilizing the groove profile like the moving mechanism 300 shown in the figure. Instead, for example, by using an elevating means by a non-mechanical means such as an electric means (computer), it is possible to follow the path shown by the dotted line in FIG. It is possible to eliminate such a rise.

As described above, the turntable 110
The disk 10 can be released from the turntable 110 by lowering the disk 10 and pressing the disk 10 against the second contact member 225.

FIG. 11 is a diagram when the second contact member 225 is arranged at a position where it contacts the non-recording area 13 on the outer peripheral side of the disk 10. FIG. 11A shows a case where the second contact member 225 is fixed to the lower housing 220 of the disk device. FIG. 11B shows a case where the disc guide member for guiding the non-recording area 13 on the outer peripheral side of the disc 10 also serves as the second contact member 225. As shown in FIG. 11, even when the second contact member 225 is brought into contact with the non-recording area 13 on the outer peripheral side of the disk 10, the disk 10 is restricted from moving in the downward direction (arrow 10B direction). Therefore, when the turntable 110 is further lowered from the position shown in FIG.
Is relatively pushed upward in the direction (arrow 10A direction). Therefore, also in the above case, the disk holding mechanism 120 operates similarly to the case where the disk 10 is brought into contact with the non-recording area on the inner peripheral side of the disk 10, and the disk 10 can be released from the turntable 110. In addition, disk 1
The second contact member 225 for guiding the non-recording area 13 on the outer peripheral side of 0 is, for example, the disk 10 such as a pin or a tray.
You may comprise by the means to convey.

In the first embodiment, the first contact member 21
5 is provided in the upper housing that forms the outer shell of the disk device, but is not limited to this, and for example, the first contact member 21
Even if 5 is a projecting portion provided in a part of the information equipment that accommodates the disk device, the same function as the above-described disk mounting operation can be performed.

In the first embodiment, the first contact member 215 is provided at a position where it abuts on the inner peripheral area of the disc 10. However, the present invention is not limited to this, and the first abutting member 215 may be, for example, a disc carrier. The contact member 21 also serves as the contact member 215.
5 may be brought into contact with the outer peripheral area of the disk 10.

In the first embodiment, the first contact member 215 is formed as a ring-shaped protrusion, but the present invention is not limited to this, and the protrusion has, for example, an elliptical or polygonal shape. The same effect can be obtained by using a plurality of protrusions as contact points.

In the first embodiment, the disc holding mechanism 120 is configured to hold and fix the disc 10 to the turntable 110 by a plurality of holding tabs 122, but the present invention is not limited to this. For example,
The disc 10 may be held and fixed to the turntable 110 by a spherical member, a ring-shaped elastic member, or the like.

In the first embodiment of the present invention, the turntable is moved up and down via the vibration elastic member 40 which also serves as a vibration buffer member. However, the present invention is not limited to this, and a coil spring or the like may be used. The turntable may be moved up and down.

(Second Embodiment) FIG. 12 is an exploded perspective view showing the structure of a disk device 2000 according to a second embodiment of the present invention. In the disk device 2000 of FIG. 12, the same components as those of the disk device 1000 shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

In the disk device 2000 of the second embodiment shown in FIG. 12, the turntable 110 is moved in the direction perpendicular to the surface of the disk 10 (arrows 10A, 10B) via the elevating base 30 by the following (a) moving mechanism. Go up and down to the first
When the contact member 215 of FIG. 1 and the disk 10 are brought into contact with each other, the turntable 110 (elevating base 30) is inclined by the angle θ with respect to the first contact member 215 (disk 10); Two points (225a, 225b) of the second contact members 225 are arranged at intervals of 90 degrees with respect to the rotation axis A, and the first embodiment shown in FIG.
Disk device 1000 of FIG.

Next, the disk device 20 according to the second embodiment will be described with reference to FIGS. 3, 6, 7 and 13 and 14.
The disk mounting operation of No. 00 will be described. Note that FIGS. 3, 6, and 7 are diagrams common to the first embodiment of the present invention.
FIG. 3 is a diagram showing a state before the disc 10 is mounted on the turntable 110. Figure 6 shows the turntable 110
It is a figure which shows the state after mounting the heddle disk 10. In FIG. 7, the disk 10 is mounted on the turntable 110,
FIG. 6 is a diagram showing a state in which the disc 10 is in a rotatable position.

In addition, FIG. 13 shows that the turntable 110 has a predetermined angle with respect to the first contact member 215 and the disk 10 and the first contact member 215 are brought into contact with each other before the disk is mounted. It is a figure which shows the state of. FIG. 14 shows the operation of the disc holding mechanism 120 when the turntable 110 makes the disc 10 and the first abutment member 215 abut each other at a predetermined angle with respect to the first abutment member 215. It is a figure. Here, FIG. 14A shows one holding claw 122.
FIG. 14B shows a state in which a is started to be pulled in, and a state in which the other holding claws 122b and 122c are started to be pulled in, respectively.

Similar to the first embodiment of the present invention, in FIG. 3, the disk 10 is carried by the disk carrying means (not shown) and is arranged above the turntable 110. Here, the center line of the center hole of the disk 10 and the hub portion 1
It is almost coincident with the center line of 21. From this position, when the turntable 110 is tilted by an angle θ with respect to the surface of the disc 10 by the moving mechanism 300 and is raised in the direction of the arrow 10A, the holding tab 122 of the disc holding mechanism 120 is held.
Contacts the lower part of the disk 10. Turntable 11
When 0 is further raised, the disk 10 holds the holding tab 1.
22 continues to rise in the state of being in contact with the disk 22, and eventually the disk 10
The upper surface of the first contact member 215 contacts the first contact member 215 (FIG. 13).
Furthermore, if the turntable 110 is further inclined while being inclined at an angle θ with respect to the surface of the disc 10, the disc 10 will continue to rise.
The first contact member 215 restricts the movement in the upward direction 10A, but the disc holding mechanism 120 does not
Since it can pass through the center hole of 0, the turntable 110 tries to move up further. At this time, as shown in FIG. 14A, the three holding tabs 1 of the disk holding mechanism 120 are
Of the portions 22a, 122b, 122c, the holding claw 122a, which is already in contact with the center hole of the disk 10, starts pulling in the direction of arrow 120B against the biasing force of the elastic member 123. Since the other holding claws 122b and 122c are still urged by the elastic member 123, the pulling-in is not started. Next, when the turntable 110 is further raised while gradually decreasing the inclination angle θ of the turntable 110, the holding claws 122a are completely retracted, and the other holding claws 122b and 122c resist the urging force of the elastic member 123. Retraction starts in the direction of arrow 120B (FIG. 14 (b)). In this way, the holding claw 122
After the pulling in of a is completed, the holding claws 122b and 122b
A force acts on only c to pull it in the direction of the arrow 120B. Therefore, the force required to pull the three holding tabs 122a, 122b, 122c in the direction of the arrow 120B is dispersed, so that the force required to operate the disk holding mechanism 120 can be reduced.

When the disc holding mechanism 120 passes through the center hole of the disc 10 and the turntable 110 rises to a height h ₄ , the elastic member 123 of the disc holding mechanism 120 is moved.
The disc 10 is pressed against the turntable 110 by the urging force of and is held and mounted on the turntable 110 (FIG. 6). If there is a variation in the thickness of the disk 10 or an error in the height of the disk device, the vibration damping member 40 is elastically deformed as in the first embodiment,
The disc 10 can be securely held and mounted on the turntable 110.

After mounting the disc 10 on the turntable 110, the turntable 110 is moved by the moving mechanism 300.
Is lowered to a position where it does not come into contact with the first contact member 215 and the second contact member 225, and the turntable 110 is held while the disk 10 is held by the holding mechanism 120.
It becomes possible to rotate with it (Fig. 7).

As described above, the turntable 110 is lifted while being inclined at a predetermined angle with respect to the surface of the disc 10, and the disc 10 is pressed against the first contact member 215, whereby the disc 10 is turned. Hold on,
Can be installed. Further, unlike the first embodiment of the present invention, the disk device of the second embodiment can simultaneously perform 3
The two holding tabs 122 resist the elastic member 123 and the arrow 12
Since the force for pulling in the 0B direction does not work, the force for operating the disc holding mechanism 120, that is, the disc 10
It is possible to reduce the force with which the turntable 110 is held and mounted on the turntable 110. In the second embodiment, the case where one holding claw starts to be retracted first has been described.
Even if the two holding claws first start to be pulled in, the force required to pull in the three holding claws 122 is likewise dispersed, so that the force for holding and mounting the disc 10 on the turntable 110 is reduced. You can

Next, the disc opening operation according to the second embodiment will be described. In the disk device according to the second embodiment, the two second contact members have the rotation axis A as the center, and
The second embodiment of the first embodiment is that it is arranged at an interval of 0 degree.
Although the structure of the contact member is different, the series of disc opening operations is the same. Here, the configuration of the second contact member 225 will be described in detail.

FIG. 15 is a plan view showing the positional relationship between the second contact member 225 and the three holding tabs 122 of the disk holding mechanism 120 when only one second contact member 225 is arranged. is there. As shown in FIG. 15, the three holding tabs 122 a, 122 b and 1 of the disc holding mechanism 120 are provided.
22 c are arranged at equal intervals of 120 degrees on the circumference of the turntable 110 with the rotation center O of the turntable 110 as the center. FIG. 15A shows a case where the positions of the second contact member 225 and one holding tab 122a are aligned in the radial direction of the turntable 110 having the rotation center O. FIG. 15B shows a case where the positions of the second contact member 225 and the three holding tabs 122a, 122b, and 122c do not match in the radial direction of the turntable 110 having the rotation center O.

Here, a case will be described in which the positions of the second contact member 225 and one holding tab 122a coincide with each other in the radial direction of the turntable 110 having the rotation center O, as shown in FIG. 15 (a). To do. With this positional relationship, the disc opening operation becomes unstable.

FIG. 16 shows the second contact member 225 in the radial direction of the turntable 110 having the rotation center O.
FIG. 11 is a diagram showing a disc opening operation when the positions of the holding claw 122a and the holding claw 122a match. Also in the second embodiment,
As described in the first embodiment, the disc releasing operation is performed by lowering the turntable 110 and relatively pushing up the disc 10 by the second contact member 225 to remove the disc 10 from the turntable 110. As shown in FIG. 16A, the turntable 1
When 10 is lowered in the direction of arrow 10B, the disk 10 is relatively pushed up from the turntable 110 in the direction of arrow 10A by the second contact member 225, and the holding tab 122 is held.
a starts to move in the direction of arrow 120B against the biasing force of the elastic member 123.

However, in the radial direction of the turntable 110 having the rotation center O, the second contact member 225 is provided.
When the positions of the holding claw 122a and the holding claw 122a coincide with each other, a large pushing force is exerted on one holding claw 122a in the direction of the arrow 10A. Occur. And from this state, turntable 110
When the disk 10 is lowered to the position where the disk 10 contacts the second contact member (FIG. 16 (b)), the holding claw 122a is caught in the central hole of the disk 10, and the turntable 110 of the disk 10 comes out. The opening is not completely achieved. In such a state, even if the disc carrying means (not shown) tries to carry the disc 10, the holding claw 122a is caught by the disc 10 and the disc 10 cannot be carried. Therefore, in the radial direction of the turntable 110 having the rotation center O, when the positions of the second contact member 225 and the holding claw 122a match, the opening operation of the disk holding mechanism 120 cannot be performed stably. .

In the second embodiment, as shown in FIG. 17, with the rotation center O of the turntable 110 as the center,
3 arranged at equal intervals on the circumference of the turntable 110
Unlike the 120 degree angle between the two retaining tabs 122a, 122b, 122c, the two second abutment members 225
a and 225b are arranged at intervals of 90 degrees around the rotation center O of the turntable 110. Due to such an arrangement, in the radial direction of the turntable 110 having the rotation center O, even if one holding claw 122a and one holding claw 122a are provided.
Even if the two second contact members 225a are aligned with each other, the other holding claws 122b or 122c and the second contact member 225b are not aligned with each other (FIG. 17).
(A)). Therefore, the opening operation of the disk holding mechanism 120 can be stably performed. Needless to say, the arrangement relationship between the holding claw and the second abutting member can be arranged in an arrangement other than the above angle. Further, as shown in FIG. 17B, in the radial direction of the turntable 110 having the rotation center O, the two second contact members 225 are arranged so that the three holding tabs 122a, 122b ,.
It may not match any of the placements of 122c. Even in this case, the opening operation of the disk holding mechanism 120 can be stably performed.

As described above, at least one of the second contact members has the holding tab 122 arranged in the radial direction of the turntable 110 having the rotation center O regardless of the stop position of the turntable 110. Therefore, it is possible to prevent the disc 10 and the holding claw 122 from being caught and to stably perform the opening operation of the disc 10.

Further, in the second embodiment, as in the case of the first embodiment shown in FIG. 11, the second contact member 215 is used.
May be arranged at a position where it abuts the non-recording area 13 on the outer peripheral side of the disk 10. The second contact member 225 that guides the non-recording area 13 on the outer peripheral side of the disc 10 may be constituted by a means for conveying the disc 10, such as a pin or a tray.

In the second embodiment, the disk holding mechanism 120 is configured to hold and fix the disk 10 to the turntable 110 by the three holding tabs 122, but the present invention is not limited to this. For example, the disc 1 may include a plurality of holding tabs, a spherical member, a ring-shaped elastic member, or the like.
0 may be held and fixed on the turntable 110.

Further, in the second embodiment, the first contact member 215 is provided in the upper casing forming the outer shell of the disk device. However, the present invention is not limited to this, and for example, the first contact member 215 is provided. Even when the member 215 is a protrusion provided on a part of an information device that accommodates a disk device, the same operation as the above-described disk mounting operation can be performed.

Further, in the second embodiment, the first contact member 215 is provided at a position where it abuts on the inner peripheral area of the disc 10. However, the present invention is not limited to this, and the first abutment member 215 may be applied to, for example, a disc carrying means. The contact member 21 also serves as the contact member 215.
5 may be brought into contact with the outer peripheral area of the disk 10.

In the second embodiment, the first contact member 215 is formed as a ring-shaped protrusion, but the present invention is not limited to this, and the protrusion has, for example, an elliptical or polygonal shape. The same effect can be obtained by using a plurality of protrusions as contact points.

Further, in the second embodiment, the turntable is moved up and down via the vibration elastic member 40 which also serves as a vibration damping member. However, the present invention is not limited to this, and the turntable is connected via a coil spring or the like. May be configured to be raised and lowered.

[0086]

As described above, according to the disk apparatus of the present invention, even if the conventional structure is such that the clamp member (clamper) is used on the upper surface of the disk to sandwich the disk with the turntable on the lower surface of the disk, the disk is automatically operated. Can be attached and detached.

Therefore, it is not necessary to form a clamp member (clamper), so that the number of parts can be reduced. Furthermore, since the thickness of the clamper is not required,
The disk device can be thinned.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a disk device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation of a disk holding mechanism of the disk device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a state before the disc is mounted on the turntable in the disc device according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a state in which the disc is being mounted on the turntable in the disc device according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a state where the disc is in the process of being mounted on the turntable and is in contact with the first contact member in the disc device according to the first embodiment of the present invention.

FIG. 6 is a diagram showing a state after the disc is mounted on the turntable in the disc device according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a state in which the disc is in a rotatable position after the disc is mounted on the turntable in the disc device according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a state in which, in the disc device according to the first embodiment of the present invention, two types of discs having different thicknesses are brought into contact with the first abutting member and the discs are mounted on the turntable.

FIG. 9 is a diagram showing a state in which the disc is being released from the turntable in the disc device according to the first embodiment of the present invention.

FIG. 10 is a diagram showing a state after the disc is released from the turntable in the disc device according to the first embodiment of the present invention.

FIG. 11 is a diagram when a second contact member is arranged at a position where it contacts the non-recording area on the outer peripheral side of the disc.

FIG. 12 is an exploded perspective view showing the configuration of the disk device according to the second embodiment of the present invention.

FIG. 13 is a diagram showing a disc device according to a second embodiment of the present invention, in which the turntable has a predetermined angle with respect to the first contact member and causes the disc and the first contact member to contact each other. Figure showing the state before mounting the disc

FIG. 14 is a diagram showing a disc device according to a second embodiment of the present invention, in which the disc and the first contact member are brought into contact with each other with a turntable having a predetermined angle with respect to the first contact member. Of the disk holding mechanism operation

FIG. 15 is a plan view showing a positional relationship between the second contact member and three holding tabs of the disk holding mechanism when only one second contact member is arranged.

FIG. 16 is a diagram showing a disc opening operation when the positions of the second contact member and the holding claw are aligned in the radial direction of the turntable having the rotation center O.

FIG. 17 is a center of rotation O of the turntable,
Three holding tabs are arranged at equal intervals of 120 degrees on the circumference of the turntable, and two second contact members are arranged at intervals of 90 degrees around the rotation center O of the turntable. FIG.

FIG. 18 is a diagram showing a lifting operation of a turntable by mechanical means and non-mechanical means.

[Explanation of symbols]

10 discs 20 Spindle motor support plate 30 lifting base 40 Vibration damping member 100 spindle motor 110 turntable 120 disk holding mechanism 121 Hub 122 Holding claw 123 Elastic member 210 Upper case 215 First contact member 220 lower housing 225 Second contact member 230 slope

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshito Saji             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Yukiyoshi Nishino             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 5D138 RA05 RA11 TA17 TA33 TA34                       TD03 TD05 TD14

Claims (9)

[Claims] 1. A turntable having a center hole and a surface for placing one of a plurality of disks having different thicknesses, the turntable rotatable about a rotation axis, and the disk. Is rotatable about the rotation axis, and the first state in which the disc is held on the turntable so as to engage with the central hole of the disc, and the first state are A disc holding mechanism having a different second state, a first contact member, a second contact member, and the turntable with respect to the first contact member and the second contact member. A moving mechanism for relatively moving the first contact member and the second contact member by the moving mechanism.
An elastic member that elastically deforms in a direction in which the turntable is relatively moved with respect to the above member, the moving mechanism is configured to move the first holding member when the disk holding mechanism is in the second state. The turntable is moved relative to the first abutting member so that the abutting member abuts the disc, and the movement is performed in a state where the first abutting member abuts the disc. A mechanism is provided for the first abutment member such that the first abutment member presses the disc against the turntable.
Further moving the turntable relative to the abutting member, the state of the disc holding mechanism is changed from the second state to the first state, and the disc holding mechanism is moved to the first state. In the case of the first state after the transition from the second state, the elastic member elastically deforms so as to absorb the difference in thickness of the plurality of disks having different thicknesses, and the moving mechanism includes the first The turntable is further moved relative to the first abutting member to a position where the first abutting member does not abut the disc, and the disc is such that the first abutting member is the disc. In the position where the second contact member does not contact the disk, the second contact member contacts the disk while being held by the disk holding mechanism and rotatable with the turntable. As described above, when the turntable is further moved relative to the second contact member, and the second contact member is in contact with the disc, the moving mechanism causes the disc to move. The second contact member operates so as to apply a force to the disc in the direction away from the turntable, whereby the state of the disc holding mechanism transits from the first state to the second state. , Disk device. 2. The position of the second contact member is fixed, and the moving mechanism moves the turntable up and down to relatively move the turntable with respect to the second contact member. The disk device according to claim 1, wherein the disk device is moved. 3. The state of the disk holding mechanism is time t ₇
In the is in a first state, the time t ₇ the state of the disk holding mechanism at time t ₈ after the transition to the second state from the first state, time after time t ₈ t ₉ 2. The disc according to claim 1, wherein the movement mechanism relatively moves the turntable with respect to the second contact member so that the disc holding mechanism is in the second state. apparatus. 4. The disk has an inner peripheral area and an outer peripheral area, the inner peripheral area and the outer peripheral area are non-recording areas, and the second contact member is the inner peripheral area or the outer peripheral area. The disk device according to claim 1, which abuts the area. 5. The disk device according to claim 2, wherein the second contact member is a protrusion provided on a part of a housing of the disk device. 6. The disk device further includes an elevating base that supports the turntable via the elastic member, and the moving mechanism elevates and lowers the turntable by elevating the elevating base. Claim 2
The disk device described in 1. 7. The disk device according to claim 6, wherein the elastic member also functions as a vibration damping member that damps vibrations of the disk device. 8. The disk device includes at least two second abutting members, the disk holding mechanism includes a plurality of holding tabs, and the at least two second abutting members include the plurality of holding claws. When in contact with the disc,
The angle at which the plurality of holding claws are arranged around the rotation axis is different from the angle at which the at least two second contact members are arranged around the rotation axis.
The disk device described in 1. 9. The disk device according to claim 8, wherein the plurality of holding claws are arranged at equal intervals on a circumference centered on the rotation axis.