JPH11328811A - Disk loading mechanism in disk drive - Google Patents

Abstract

(57) [Summary] In a disk drive capable of loading both a single disk and a cartridge, a slide shutter can be more reliably opened and closed at the time of loading of a cartridge, and the structure is simpler and thinner. It is an object of the present invention to provide a disk loading mechanism that can be implemented. The apparatus includes a tray (3) capable of moving back and forth with respect to a main body, and a shutter opening / closing mechanism for opening and closing a slide shutter (71) of a cartridge (7) on the tray in conjunction with the movement of the tray (3). The shutter opening / closing mechanism is formed on a member integral with the tray 3, and has a first guide groove 5 having a width direction portion 51 extending a predetermined length in a direction perpendicular to the tray retreating direction, and a first guide groove 5 above the tray 3. A second guide groove 8 formed on a fixedly arranged member and having an inclined portion 81 with respect to the tray retracting direction, and slidable with respect to both the first guide groove 5 and the second guide groove 8. And a sliding member 6 for opening and closing a slide shutter 71 of the cartridge 7 when engaged and slid along the width direction portion 51 of the first guide groove 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading mechanism in a disk drive, and more particularly to a disk loading mechanism capable of loading a disk alone or a cartridge containing a disk.

[0002]

2. Description of the Related Art Conventionally, a disk drive for a single disk such as a CD or DVD and a disk drive for a cartridge containing a disk such as a magneto-optical (MO) disk have a loading mechanism. It was usual that a completely different mechanism was adopted. That is, in the former, the disk may be supported by the spindle and the clamper inside the apparatus, whereas in the latter, the slide shutter attached to the cartridge is opened, and a part of the disk surface is opened in the window of the cartridge. Must be exposed to the optical head.

More specifically, a loading mechanism generally employed in a disk drive for a single disk is configured such that a drawer-ejectable tray is advanced, a disk is mounted thereon, and the tray is retracted. When you let
The spindle moves upward from below to catch the center hole of the disk, and the clamper moves downward from above to press the upper surface of the center of the disk. On the other hand, the loading mechanism of the disk drive for the cartridge, when the cartridge is inserted from the slot, the shutter opening / closing mechanism configured to operate using this insertion force slides the shutter of the cartridge in the opening direction. , The disc is supported by the spindle and the clamper.

[0004] On the other hand, there has also been proposed a disk drive device configured to be able to load both a single disk and a cartridge, an example of which is disclosed in, for example, JP-A-8-7466.

[0005] The loading mechanism in the disk drive disclosed in the publication has a tray formed so as to be able to be pulled out and retracted and to properly mount both the disk unit and the cartridge. The tray is provided with a pair of guide bars extending in a direction orthogonal to the tray retreating direction, and a slider having a pin capable of engaging with a slide shutter of the cartridge is slidably mounted on the guide bar. In this configuration, there is provided an arm that rotates while the tip is engaged with the slider when the slider moves backward. When the tray retreats, the tip of the arm provided on the base member engages with the slider. Since the slider can move in the direction perpendicular to the tray moving direction,
The arm pivots so as to be gradually folded as the tray retreats. Then, the slider slides on the guide bar according to the component of the movement of the tip of the rotating arm in the direction perpendicular to the tray retreating direction, and opens the shutter of the cartridge.

[0006]

However, the loading mechanism in the disk drive disclosed in the above publication still has the following problems.

First, a pair of guide bars is provided on the tray in a direction perpendicular to the tray retreating direction, and a slider is slidably mounted on the pair of guide bars. Therefore, the size of the tray in the thickness direction is increased, and the disk drive is driven. It is difficult to adopt this device when it is strictly required to reduce the thickness in the thickness direction.

Second, in addition to providing the above-mentioned slider on the tray, it is necessary to provide a rotating arm on the base, which makes the mechanism complicated and disadvantageous in cost.

Third, in order for the tip of the arm on the base to properly engage with a predetermined portion of the slider as the tray moves in the retreating direction, it is necessary to devise the arrangement of the arm and the slider. When the tray is pushed in suddenly, the tip of the arm may not properly engage with the slider, and a malfunction may occur. Further, even if the slider shutter of the cartridge is opened during loading, there is a possibility that the slide shutter cannot be reliably closed during unloading. In short, there is a problem in the certainty of the opening and closing movement of the shutter when loading the cartridge.

The present invention was conceived in view of the above circumstances, and in a disk drive capable of loading both a disk alone and a cartridge, a slide shutter is more reliably opened and closed when loading a cartridge. It is an object of the present invention to provide a disk loading mechanism that can be moved, has a simple structure, and can be made thinner.

[0011]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

That is, the disk loading mechanism in the disk drive device according to the present invention includes a tray capable of mounting and supporting both a disk alone and a disk storage cartridge and capable of moving back and forth with respect to the main body; A shutter opening / closing mechanism for opening / closing a slide shutter of a cartridge on the tray in conjunction with the movement of the tray. The shutter opening / closing mechanism is formed on the tray or as an integral part of the tray. A first guide groove having at least a width direction portion extending a predetermined length in a direction perpendicular to the retreating direction, and a first guide groove formed on a member fixedly disposed above the tray and having at least a tilted portion with respect to the tray retreating direction. A second guide groove, and slidably engage with both the first guide groove and the second guide groove; And a sliding member that engages with a slide shutter of the cartridge or a member integral therewith to open and close the slide shutter when sliding along the width direction portion of the groove. Features.

The first guide groove is formed on a tray that can move back and forth with respect to the main body or a member integral therewith, while the second guide groove is fixedly arranged, so that the tray moves out and back. Then, the first guide groove and the second guide groove relatively move in the tray retreating direction. Since the sliding member is engaged with both the first guide groove and the second guide groove, when the sliding member is engaged with the width direction portion of the first guide groove, the first guide groove and the second guide groove are engaged. When the second guide groove and the second guide groove move relative to each other in the tray retracting direction, when the sliding member slides on the inclined portion of the second guide groove, the width portion of the first guide groove can be simultaneously moved in the width direction. That is, in the present invention, when the tray moves back and forth, the inclined portion of the second guide groove drives the sliding member in the width direction along the width direction portion of the first guide groove. Such movement in the width direction of the sliding member opens and closes the sliding shutter of the disk storage cartridge arranged on the tray.

In the disk loading mechanism according to the present invention having the above-described structure, the elements constituting the shutter opening / closing mechanism are the first guide groove, the second guide groove, and a sliding member commonly engaged with these. . The first guide groove may be formed on the tray, and the second guide groove may be formed on a thin plate-shaped member disposed above the tray. Also,
The sliding member can be formed in a small slide block shape. Therefore, in the shutter opening / closing mechanism, there is almost no element for increasing the size of the disk loading mechanism in the thickness direction, so that a disk drive capable of loading both the disk alone and the disk storage cartridge can be configured more compactly.

In the shutter opening / closing mechanism, the sliding member is a first member.
Since it is configured to always engage with both the guide groove and the second guide groove, the reliability of the shutter opening / closing operation of the cartridge is greatly improved. Further, since the number of members is small, it is very advantageous in terms of cost.

In a preferred embodiment, the first
The guide groove is formed deeper than the disc mounting area on the tray. In general, a tray in a disk drive device has a portion always supported in the main body at the back of the disk mounting area in order to realize an advanced state in which the disk mounting area protrudes from the main body. Therefore, if the first guide groove is formed in the depth of the disk mounting area of the tray as described above, the first guide groove can be formed without waste within the dimension range in the depth direction which the tray originally has. Therefore, the present invention can be carried out without enlarging the dimension in the depth direction of the disk drive device that adopts the loading method using the tray that moves in and out.

In a preferred embodiment, the first guide groove has a depth direction portion extending continuously from one end of the width direction portion toward the tray retracting direction.
According to such a configuration, the sliding body can be driven in the width direction by the inclined portion of the second guide groove from the time when the tray is retreated to some extent. Therefore, the total length of the second guide groove in the depth direction can be shortened accordingly, and the size of the member in which the second guide groove is to be provided can be reduced.

[0018] In a preferred embodiment, the second guide groove further includes the inclined portion disposed in the front direction, and a depth direction portion extending linearly continuously from the inclined portion to the tray retracting direction. Is provided. With this configuration, the sliding member moves in the width direction of the first guide groove at an initial stage of sliding the second guide groove from the near side to the back. This means that the shutter of the cartridge can be completely opened before the end of the retreat of the tray. Therefore, it is possible to avoid interference between the shutter and the optical head positioned close to the window of the cartridge in the loading state, thereby contributing to making the loading mechanism thinner.

In a preferred embodiment, the second guide groove has a form of a slit formed through the thin plate-like member, and the second guide groove has a projection formed above the sliding member. It is possible to adopt a configuration in which the projected projections are slidably engaged. With this configuration, it is possible to avoid an increase in the dimension of the tray-type loading mechanism in the thickness direction.

Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the drawings.

[0021]

Preferred embodiments of the present invention will be specifically described below with reference to the drawings. FIG.
3 is an external perspective view of the disk drive device with the tray advanced, FIG. 2 is an exploded perspective view of a main part of the shutter opening / closing mechanism, FIG. 3 is a plan view of the main part of the shutter opening / closing mechanism, and FIG. 4 is a line IV-IV in FIG. 5, FIG. 5 is an enlarged sectional view taken along line VV in FIG. 3, FIGS. 6 to 9 are operation explanatory views of the shutter opening / closing mechanism, and FIG. 10 is a sectional view taken along line XX in FIG. It is a figure and shows the internal structure of a disk drive mechanism.

As shown in FIG. 1, a disk loading mechanism 1 in a disk drive according to the present invention.
The tray 3 retreats in the horizontal direction from the front opening of the apparatus main body 2, a predetermined disk CD or a disc storage cartridge 7 is placed on the upper surface of the tray 3 in the advanced state, and the tray 3 is retreated. It is of the type that is pulled into the main body and loaded.

As shown in FIGS. 1 and 6 to 10, the tray 3 has a disc mounting area 31 on the upper surface on the front side.
A support portion 32 that is guided and supported by a guide mechanism (not shown) in the main body 2 is integrally formed at the back of the support portion 32. The disc mounting area 31 has a 12 cm size optical disc and an 8 cm
A concave portion 33 into which the optical disk of the die 3 fits is formed concentrically, and a rib 34 is formed for fitting the corner portion of the disk storage cartridge 7 to fix it in a predetermined posture. Then, the disk mounting area 31
The slit penetrates vertically from the center of the
35 are formed. The slit 35 passes through the spindle 41 for rotating and supporting the optical disk alone in the loaded state or the center of the disk 73 or the hub 74 of the disk storage cartridge 7, and
This is to secure an optical path from the optical head 42 arranged to move in the radial direction (see FIG. 10).
And this tray 3, as is well known,
The tray is moved back and forth by a switch operation, or is automatically moved back by manually pushing the front end of the tray in the advanced state to some extent.

A first guide groove 5 is formed on the support portion 32 of the tray 3, that is, on the upper surface of an area that is deeply adjacent to the disk mounting area 31. This first
The guide groove 5 has a width direction portion 51 extending a predetermined length in the width direction.
And a depth direction portion 52 which is bent at a right angle from an end of the width direction portion 51 and extends backward by a predetermined length, and as shown well in FIG. 4, is a groove having a rectangular cross section.
The length of the width direction portion 51 of the first guide groove 5 is determined by the length of a sliding member 6 described later that engages with the first guide groove 5 and slides.
When the slider slides in the width direction portion 51, the moving stroke distance is required to open and close the slide shutter 71 of the cartridge 7.

A sliding member 6 is slidably engaged with the first guide groove 5. This sliding member 6 is shown in FIG.
As shown in FIG. 5, a lower fitting portion 61 having a predetermined thickness and fitted in the first guide groove 5 and having a rectangular shape in a plan view, and formed so as to overlap with the lower fitting portion 61. The shutter opening / closing operation section 62 includes a pin-shaped upper fitting section 63 protruding from the upper surface of the shutter opening / closing operation section 62.

As shown in FIG. 2, the groove width W1 of the width direction portion 51 of the first guide groove 5 corresponds to the depth dimension L1 of the lower fitting portion 61 of the sliding member 6, and The groove width W2 of the depth direction portion 52 of the guide groove 6 corresponds to the width dimension L2 of the lower fitting portion 61 of the sliding member 6. Therefore, when the sliding member 6 moves while engaging with the first guide groove 5, the posture in the θ direction is always constant. That is, the sliding member 6
The projection 62a of the shutter opening / closing operation part 62 always moves in a posture protruding forward.

The shutter opening / closing operation section of the sliding member 6
As shown in FIG. 2, the protrusion 62 is formed with a protrusion 62 a protruding in the front direction. The protrusion 62a is formed on the slide shutter 71 of the disk storage cartridge 7 loaded on the tray 3 or a member integral therewith.
For example, it engages with a recess. The upper fitting portion 63 of the sliding member 6 is slidably fitted in a second guide groove 8 described later.

In the main body 2, a plate-like member 21 disposed in parallel with the tray 3 above the tray 3 so as not to interfere with the movement of the tray 3 has a second slit-like member penetrating the plate-like member 21. A guide groove 8 is formed. The second guide groove 8 has, at the front portion, an inclined portion 81 inclined with respect to the moving direction of the tray 3, and a depth portion 82 linearly extending from the deep end of the inclined portion 81 in the tray moving direction.
And This second guide groove 8 is, as described above,
A protruding upper fitting portion formed at the upper end of the sliding member 6
Corresponding to the diameter of 63, the groove width is set so that the upper fitting portion 63 can slide in the groove direction while engaging.

The planar relationship between the first guide groove 5 formed on the tray 3 and the second guide groove 8 formed on the plate member 21 is as follows. First, the inclined portion 81 of the second guide groove 8 is inclined so as to be deviated leftward from the front end toward the back. The width direction position of the front end of the inclined portion 81 is the right end of the width direction portion 51 of the first guide groove 5, that is, the depth direction portion 52.
In the tray width direction. The amount of deviation of the inclined portion 81 in the width direction corresponds to the extension of the width portion 51 of the first guide groove 5. Furthermore, the second
The inclination angle of the inclined portion 81 of the guide groove 8 is selected according to how much the tray 3 is pulled in to complete the opening movement of the slide shutter 71 of the cartridge 7. Then, as shown in FIGS.
The lower fitting part 61 is in the first guide groove 5 and the upper fitting part is
63 can engage with the first guide groove 5 and the second guide groove 8 and can slide with respect to them so that the 63 engages with the second guide groove 8.

Next, the operation of the disk loading mechanism having the above structure, particularly, the operation of the shutter opening / closing mechanism when the disk storage cartridge 7 is loaded will be described.

When the tray 3 is in the advanced state at the front end of its moving stroke, as shown in FIG. 6, the sliding body 6 is located at the deepest end of the depth direction portion 52 of the first guide groove 5 and at the second guide groove 8. It is located at the forefront end of the inclined portion 81, respectively.

In this state, the disk storage cartridge 7 is placed on the tray 3. The slide shutter 71 of the cartridge 7 is slidable between a closed state shown in FIGS. 6 and 7 and an open state shown in FIGS. 8 and 9, and usually includes a built-in spring (not shown). Is biased in the closing direction. The shutter bar 71a is formed integrally with the slide shutter 71.

When the tray 3 is retracted manually or by operating a switch, first, the sliding member 6 maintains the front end position of the inclined portion 81 of the second guide groove 8 while maintaining the front end position.
As the tray 3 retreats, the depth direction portion 52 of the first guide groove 5 relatively moves toward the front side, and reaches the front side end of the depth direction portion 52 as shown in FIG. At this time, the projection 62a of the shutter opening / closing operation portion 62 of the sliding member 6 is engaged with the sliding shutter 71 of the cartridge 7 or a member integral therewith.

When the tray 3 continues to retreat further in the depth direction from the state shown in FIG.
Is restricted, the inclined portion 81 of the second guide groove 8 is relatively slid in the depth direction. The inclined portion 81 is inclined with respect to the moving direction of the tray 3,
In addition, since the widthwise portion 51 of the first guide groove 5 allows the sliding member 6 to move in the width direction, the sliding member 6 moves along the inclined portion 81 of the second guide groove 8. At the same time, the width direction portion 51 of the first guide groove 5
To move. As shown in FIG. 8, by the movement of the sliding body 6 in the width direction, the shutter 71 of the disk storage cartridge 7 is opened against the urging force of the spring in the closing direction.

When the tray 3 continues to retreat in the depth direction from the state shown in FIG.
The sliding member 6 maintains the fixed position (the position where the shutter 71 is opened) of the width direction portion 51 in the first guide groove 5 while maintaining the second position.
The depth direction portion 81 of the guide groove 8 is moved to its deepest end to enter the disk loading state shown in FIG.

In this disc loading state, FIG.
As schematically shown in FIG.
Spindle for rotating and supporting the hub part 74 from below
41 moves up. Such a disk rotation drive mechanism can be variously changed depending on the type of the disk loaded in the cartridge. However, the disk drive in the cartridge 7 can be loaded on the tray by loading the disk alone. A mechanism capable of appropriately supporting both the optical disk and the optical disk alone should be adopted. FIG.
At 0, reference numeral 43 denotes a clamper for pressing the vicinity of the center hole of the disk unit when the disk unit is loaded and cooperating with the spindle 41 to rotationally support the disk unit.

The information carried on the disk 73 in the loaded cartridge 7 is transferred to the optical head by the slide shutter 71 being opened as described above.
Read out by applying 42. If the disk in the cartridge 7 is readable and writable by magneto-optics, information is written on the disk surface by operating an optical head suitable for the disk.

When unloading the disc, the tray 3 is advanced from the retracted state shown in FIG. 9 to the advanced state shown in FIG. 6 by operating a switch. At this time, the slide 6
The movement of the first guide groove 5 and the second guide groove 8 is the reverse of the above-described description at the time of disc loading. The sliding member 6 moves the widthwise portion 51 of the first guide groove 5 in FIGS.
When moving to the right in FIG. 9, the slide shutter 71 of the cartridge 7 closes by following the movement of the slide body 6 by the urging force of the spring in the closing direction.

Of course, the scope of the present invention is not limited to the above-described embodiment, and any modifications within the scope of the matters described in the claims are included in the scope of the present invention. In particular, the first guide groove 5 may have at least the width portion 51 in the embodiment in the sense of causing the sliding body to move in the width direction and thereby cause the slide shutter of the cartridge to open and close. ,
The second guide groove 8 may have at least the inclined portion 81 in the embodiment.

[0040]

As described above, according to the disk loading mechanism in the disk drive according to the present invention,
The following effects can be obtained. That is, the components that constitute the shutter opening / closing mechanism are the first guide groove, the second guide groove, and the sliding member commonly engaged with these. The first guide groove is formed on the tray, the second guide groove can be formed on a thin plate-shaped member disposed above the tray, and the sliding member can be formed on a small slide block. Therefore, since the shutter opening / closing mechanism has almost no element for enlarging the dimension of the disk loading mechanism in the thickness direction, it is possible to make the disk drive capable of loading both the disk alone and the disk storage cartridge more compact.

Further, the shutter opening / closing mechanism is such that the sliding member is a first member.
Since it is configured to always engage with both the guide groove and the second guide groove, the reliability of the shutter opening / closing operation of the cartridge is greatly improved. Further, since the number of members is small, it is very advantageous in terms of cost.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a disk drive device with a tray in an advanced state.

FIG. 2 is an exploded perspective view of a main part of a shutter opening / closing mechanism.

FIG. 3 is a plan view of a main part of a shutter opening / closing mechanism.

FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG.

FIG. 5 is an enlarged sectional view taken along line VV in FIG. 3;

FIG. 6 is a diagram illustrating the operation of a shutter opening / closing mechanism.

FIG. 7 is an operation explanatory view of a shutter opening / closing mechanism.

FIG. 8 is a diagram illustrating the operation of a shutter opening / closing mechanism.

FIG. 9 is a diagram illustrating the operation of a shutter opening / closing mechanism.

FIG. 10 is a view corresponding to a cross section taken along line XX of FIG. 9, showing the internal structure of the disk drive mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc loading mechanism 2 Device main body 21 Plate member 3 Tray 31 (Tray) disk mounting area 32 (Tray) support part 33 Depression 34 Rib 35 Slit 41 Spindle 42 Optical head 43 Clamper 5 First guide groove 51 (First 1 width direction portion 52 (first guide groove) depth direction portion 6 (first guide groove) 6 sliding member 61 lower fitting portion (of sliding member) 62 shutter opening / closing operating portion (of sliding member) 63 (sliding member) 7) Cartridge 71 (Slider shutter) 8 Second guide groove 81 Inclined portion (of second guide groove) 82 Depth direction portion (of second guide groove)

Claims (5)

[Claims] A tray capable of mounting and supporting both a single disk and a disk storage cartridge, and capable of moving out and retreating with respect to a main body, and a cartridge mounted on the tray in conjunction with the retraction of the tray. A shutter opening / closing mechanism for opening and closing the slide shutter, wherein the shutter opening / closing mechanism is formed on the tray or as an integral part of the tray, and extends in a width direction extending a predetermined length in a direction perpendicular to the tray retreating direction. First having at least a portion
A guide groove, a second guide groove formed in a member fixedly disposed above the tray, and having at least a portion inclined with respect to the tray retreating direction, and both the first guide groove and the second guide groove. When the slide shutter is slidably engaged with the slide guide and slides along the width direction portion of the first guide groove, the slide shutter is engaged with a slide shutter of the cartridge or a member integral therewith to open and close the slide shutter. And a sliding body to be made,
Disk loading mechanism in a disk drive. 2. The device according to claim 1, wherein the first guide groove is formed deeper than a disc mounting area of the tray.
A disk loading mechanism in the disk drive device according to 1. 3. The disk loading mechanism of the disk drive according to claim 1, wherein the first guide groove includes a depth direction portion extending continuously from one end of the width direction portion toward the tray retracting direction. . 4. The device according to claim 1, wherein the second guide groove includes the inclined portion disposed in the front direction, and a depth portion extending linearly continuously from the inclined portion to the tray retracting direction. A disk loading mechanism in the disk drive device according to any one of claims 1 to 3. 5. The second guide groove has a form of a slit formed through the thin plate-like member, and a projection formed on an upper portion of the sliding member is slidable in the second guide groove. 5. The disk loading mechanism in the disk drive according to claim 1, wherein the disk loading mechanism is engaged with the disk drive.