JP2001184769A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for a large height space within a casing and the difficulty in the thickness reduction of the casing of the conventional disk device as plural disks are heretofore installed in a laminated state within the casing. SOLUTION: The MDs are lined up by two pieces each and are supported in a disk surface direction at the disk supporting bodies arranged in two stages one above the other. The deep side of an apparatus body 1 is provided with a disk drive means 30 freely movably in a lateral direction. The disk drive means 30 is moved to the right and left in this position and the disk to be driven out of the two MDs is selected. The MDs are transferred in the state of being flatly lined up in two pieces within the casing and since the two disks are selected by the disk drive means 30, the disk device having the disk exchange function many be flatly constituted and the entire part may be formed thinner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive for selectively driving a disk in the disk drive, and more particularly to a disk drive capable of reducing the thickness of the entire disk drive.

[0002]

2. Description of the Related Art Conventional CDs (Compact Discs) and M
The in-vehicle disk device loaded with D (mini disk) has a disk change function of storing a plurality of disks in the disk device and selecting one of the disks for recording and reproduction. There is something.

In many of these disk drives, a magazine in which a plurality of disks are stored in a stacked state is loaded in a housing, or MDs or the like are inserted one by one into the housing and installed in a stacked state in the housing. You. Then, in the housing, a disk drive unit that performs recording and reproduction of the disk moves in the stacking direction of the disks such as the MD to perform a disk selection operation, and the selected disk is pulled out onto the disk drive unit, The disk is clamped and rotated by a spindle motor provided in the disk drive, and a head provided in the disk drive performs a reproducing or recording operation on the disk.

[0004]

In the above-mentioned conventional disk drive, the disks are installed in the housing in a state of being stacked in the thickness direction, and the disk drive unit moves in the disk stacking direction. In the housing, a height space for accommodating a plurality of disks in a stack and a height space for the disk drive to move in the laminating direction are required. As a result, the height dimension of the housing is increased, and there is a limit in reducing the thickness of the housing. For example, it is very difficult to realize a configuration in which a plurality of disks are stacked in the thickness direction and housed in a half-din-size housing whose height is half the one-din size, and the disks can be selected.

An object of the present invention is to solve the above-mentioned conventional problem. In a disk device for selecting one of a plurality of disks, a disk can be selected by using a thin space in a housing. It is an object of the present invention to provide a disk device having the above configuration.

[0006]

According to the present invention, there is provided a disk drive comprising: a disk support for supporting a plurality of disks arranged in a disk surface direction in an apparatus body having a disk entrance; A first position for receiving a disc inserted from the doorway;
A support moving means for moving from a position to a second position moved inward of the apparatus main body; a disk driving means opposed to a disk supported by the disk support moved to the second position; Selection drive means for selecting one of the disks by moving the disk drive means in a direction along a disk surface of a disk supported by the disk support when the disk support moves to the second position; And loading drive means for moving the disk drive means in the direction of the disk support moved to the second position to load a selected disk into the disk drive means. It is.

In the above means, a plurality of disks are supported side by side on the disk support in the direction of the disk surface, and when the disk support moves to the second position, the plurality of disks on the disk support are put together in the device. Move inside the body. Then, the disc is selected by moving the disc driving means along the disc support at the second position. As described above, a plurality of disks are arranged in the disk surface direction, and the disk drive means moves in the disk surface direction to perform the disk selecting operation, so that the device body can be made thinner.

[0008] Further, the discs may be stored one by one in a cartridge like an MD,
It may not be housed in a cartridge like a CD.

For example, the disk support is transferred in a direction orthogonal to the direction in which the disks are arranged by the support transfer means. Moved in orthogonal directions.

A plurality of the disc supports are provided, and the disc supports at the first position overlap in the thickness direction of the disc, and when one of the disc supports moves to the second position. Moving at least the center of rotation of the disk supported by the disk support moved to the second position to a position not overlapping with the disk supported by the disk support at the first position, and moving to the second position; The disk supported by the moved disk support may be drivable by the disk driving means.

However, only one stage of the disk support is provided, and the one-stage disk support moves to the second position, and about two or three disks supported by the disk support are selected. May be performed.

Further, a restraining means for restraining the disc support at the first position so as not to move at least in the thickness direction of the disc, and an elastic support member for elastically supporting the disc driving means in a state where the disc is driven. The disc support moved to the second position is released from the restraint by the restraining means, and the disc loaded in the disc driving means at this position is moved together with the disc driving means by the elastic support member. It is also possible to adopt a configuration in which the elastic support state is obtained.

In this configuration, since the disk support at the first position is restrained, the disk can be easily inserted into the disk support in this state, and the disk support can be easily moved to the second position. Since the entire disk support can be brought into an elastic support state, it is possible to prevent the vibration of the vehicle body from affecting the disk drive in the case of a vehicle.

Further, for example, the entrance formed in the main body of the apparatus may have an opening width that allows a plurality of discs to be simultaneously inserted into the disc support at the first position.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of a disk drive according to the present invention, FIG. 2 is a front view of the disk drive,
FIG. 3 is a right side view of FIG. 1, and FIG. 4 is a right side view showing another embodiment.

An apparatus main body 1 of the disk drive shown in FIG.
It has a housing 2 and a nose portion (panel portion) 3 attached to the front surface of the housing. The housing 2 is a so-called 1/2 din size, and the height dimension is half of the 1 din size. The housing 2 is embedded in a dashboard or instrument panel in a vehicle interior, and the nose portion 3 appears on the dashboard or instrument panel.

As shown in FIGS. 1 and 2, the nose 3
Has an opening 4. As shown in FIG.
The opening area of the entrance 4 is formed to a size that allows four MDs (mini-discs) to be inserted together.

Inside the housing 2, a lower disk support 5 and an upper disk support 6 are provided.
Each of the disk supports 5 and 6 has a holder shape, and can hold two mini disks in a state of being arranged in the disk surface direction. Lower disk support 5
Has a shape capable of holding two MDs arranged in the disk surface direction, and has openings 5a and 5b formed on the lower surface thereof to expose the lower surfaces of the two MDs. The upper disk support 6 has the same shape, and has openings 6a and 6b on the lower surface for exposing the lower surfaces of the two MDs.

Two sliding bearings 7, 7 are fixedly provided on one side of the lower disk support 5, and a female screw bearing 8 is fixedly provided on the other side. . Similarly, sliding bearings 9 and 9 and a female screw bearing 10 are provided on both sides of the upper disk support 6.

On the right side (X1 side) of the housing 2, guide shafts 11 and 12 extending in the depth direction (Y1-Y2 direction) of the device main body 1 are provided vertically fixed in two stages in parallel. The sliding bearings 7, 7 provided on the lower disk support 5 are slidably inserted into the lower guide shaft 11, and the sliding bearings 9, 9 provided on the upper disk support 6 are provided. Are slidably inserted into the upper guide shaft 12.

On the left side of the housing 2 in the figure, there are provided upper and lower two-stage screw shafts 15 and 16. Each of the screw shafts 15 and 16 is located in the depth direction (Y1-Y2 direction) of the device main body 1.
And extend in parallel in two vertical steps.

The screw shafts 15 and 16 are rotatably supported by supports 17 and 18 provided in the housing 2, respectively. As shown in FIG. 1, a gear 21 is integrally fixed to the upper screw shaft 16, and a reduction gear train 22 meshing with the gear 21 and a motor 23 for driving the reduction gear train 22 are provided in the housing 2. Is provided. Similarly, a gear is also fixed to the lower screw shaft 15, and the reduction gear train and the motor that drive the lower screw shaft 15 are the reduction gear train 22 and the motor 23.
And are provided separately.

The female screw bearing 8 provided on the lower disk support 5 is inserted in mesh with the screw shaft 15, and the female screw bearing 10 provided on the upper disk support 6 is also connected to the upper screw. Similarly, the shaft 16 is inserted in a meshing state.

In this embodiment, the screw shaft, the gears, the reduction gear train and the motor constitute a support transfer means. The support transfer means forms the lower disk support 5 and the upper disk support. The body 6 can move individually in the Y1-Y2 direction while supporting the two MDs. For example, when the motor 23 shown in FIG. 1 is driven,
The upper screw shaft 16 is driven to rotate, and the upper disk support 6 is guided by the upper guide shaft 12 and is driven by the screw shaft 16 so that two MDs are driven.
While moving in the Y1-Y2 direction. When the lower screw shaft 15 is rotationally driven by the motor, the lower disk support 5 is moved in the Y1-Y2 direction while the two MDs are supported.

That is, the upper and lower disk supports 5 and 6
Can be individually moved between a first position (i) located on the inner side in the immediate vicinity of the entrance 4 and a second position (ii) inside the device body 1. In this embodiment, one of the disk supports 5 and 6 is in the second position (i
When moving to i), at least the center of rotation of the MD supported by the disk support does not overlap with the MD on the disk support at the first position.

When the disk support 5 is at the first position (i), two MDs are
Can be inserted simultaneously, and the disk support 6
Is in the first position (i), two MDs can be inserted into the disk support 6 from the entrance 4 at the same time. Therefore, when both disc supports 5 and 6 are at the first position (i), four MDs can be inserted at the same time.

Each of the disk supports 5 and 6 is provided with a mechanism for opening a shutter S provided on the MD cartridge by the insertion force when the MD is inserted. When the MD is discharged from the disk supports 5 and 6 to the entrance 4, the shutter S is closed. The disc supports 5 and 6 are provided with a disc insertion / ejection mechanism for automatically pulling in the MD after the MD is inserted to the position shown by the dashed line in FIG. 1 and individually ejecting the MD to the entrance 4. Is preferred.

On the back side (Y2 side) of the device main body 1, a disk drive means 30 is provided. As shown in FIGS. 2 and 3, when the disk drive unit 30 is at the standby position at the inner bottom of the housing 2, the lower disk support 5 that moves in the Y1-Y2 direction; And are arranged so that they do not hit.

The disk drive means 30 is provided on the drive base 31, a turntable 32 rotatably supported by the drive base 31, a spindle motor for driving the turntable 32 to rotate, and the drive base 31. And a threat mechanism for tracking the optical head 33 along the disk surface.

The drive base 31 constituting the disk drive means 30 is provided on a selection base 35. A pair of guide shafts 36 extending in X1-X2 on the back side of the housing 2
The selection base 35 is supported by the guide shafts 36 and 37 so as to be movable in the X1-X2 directions. The selection base 35 reciprocates between a right selection position (iii) and a left selection position (iv) shown in FIG. In the housing 2, there is provided a selection driving means (not shown) composed of a screw shaft and a motor, or a rack and a pinion, and the like. Are reciprocated between the right-side selection position (iii) and the left-side selection position (iv). This reciprocating movement is in the direction along the disk surface of the MD supported by being arranged on the disk supports 5 and 6.

The selection base 35 has supporting side plates 35a, 35a vertically bent on both sides on the X1-X2 side.
Are provided integrally, and two support shafts 3 are fixed to the left and right sides of a drive base 31 of the disk drive means 30, respectively.
8, 38, 38, 38 are the support side plates 35a, 35a
Is inserted into the vertical guide hole formed in the
Above, the drive base 31 is movably supported in a vertical direction (Z direction: see FIG. 3).

The supporting side plates 35a, 3 of the selection base 35
A loading drive member 41 (see FIG. 3) constituting loading drive means is movably supported in the Y1-Y2 directions outside the 5a, and the support side plate is driven by a drive source mounted on the selection base 35. At 35a, 35a, the loading drive member 41 is driven in the Y1-Y2 direction.

As shown in FIG. 3, the loading drive member 41 is formed with inclined guide cams (cam holes) 42, 42.
The support shafts 38 fixed to the drive base 31 are inserted into the inclined guide cams 42. The inclined guide cams 42 have a lowermost standby portion 42a,
A lower loading section 42b and an upper loading section 42c are formed, the standby section 42a and the lower loading section 42b are continuous via an inclined section, and the lower loading section 42b and the upper loading section 42c are continuous via an inclined section. are doing.

When the selection base 35 is in the right selection position (ii)
i), or when the loading drive member 41 is driven in the Y1 direction in the left-side selection position (iv), the drive base 31 is capable of loading a disk supported by the lower disk support 5. The disk is moved upward to a driving position or an upper driving position where a disk supported by the upper disk support 6 can be loaded.

Next, the operation of the disk device having the above structure will be described. As described above, when both the lower-stage disk support 5 and the upper-stage disk support 6 are moving to the first position (i), each of the lower and upper disk supports 5 passes through the entrance 4 formed in the nose portion 3. Four MDs can be inserted into the disc supports 5 and 6. When only one of the disk supports 5 and 6 is moving to the first position (i), two MDs can be inserted into this one disk support.

When a command to drive the MD supported by the lower disk support 5 is issued, the lower screw shaft 15 is driven by a motor, and the lower disk support 5 is driven.
Is moved in the Y2 direction. When two MDs are supported by the disk support 5, the two MDs are moved together with the disk support 5 in the Y2 direction.

When the disk support 5 moves in the Y2 direction and stops at the second position (ii), a disk selecting operation is performed. That is, the power of the selection drive means moves the selection base 35 on which the disk drive means 30 is mounted to the right selection position (iii) or the left selection position (iv) and stops.

When the right MD or the left MD is selected in this operation, the loading drive member 41 shown in FIG. 3 moves in the Y1 direction, and the support shafts 38, 3 fixed to the drive base 31.
The loading drive member 41 stops when 8 moves from the standby section 42a of the inclined guide cams 42, 42 to the lower loading sections 42b, 42b. During this time, the drive base 31 is lifted and stopped in the selection base 35, and reaches the second position (ii).
The clamp hub of the MD disk on either the left or right supported by the moving disk support 5 is clamped to the turntable 32. Usually, a magnet is embedded in the turntable 32, and the clamp hub is attracted to the turntable 32 and clamped by the attraction force of the magnet. Then, the disk is driven by the spindle motor, and the reproducing or recording operation is performed by the head 33.

Next, when driving the MD supported by the upper disk support 6, the loading drive member 41 shown in FIG. 3 is first moved to the Y2 side, and the drive base 31 is moved to the lowermost standby position. Moved to Thereafter, the lower disk support 5 is returned to the first position (i) by the power of the motor constituting the support transfer means. Then, the motor 23 shown in FIG. 1 is started, the upper screw shaft 16 is driven to rotate, and the upper disk support 6 moves in the Y2 direction, moves to the second position (ii), and stops. .

Then, the selection base 35 is moved to the right selection position (iii) or the left selection position (iv), and one of the disks in the disk support 6 is selected. Further, the loading drive member 41 shown in FIG. 3 is driven in the Y1 direction, the support shafts 38, 38 move to the upper loading portions 42c, 42c of the inclined guide cams 42, 42, and the turntable 32 on the drive base 31 The height is such that the clamp hub of any MD in the support 6 can be clamped.

FIG. 4 shows another embodiment of the disk drive of the present invention. In the embodiment shown in FIG. 4, shafts 45, 45 are fixed to the side of the disk support 6, and a guide path (guide hole) for guiding the shafts 45, 45 in the Y1-Y2 direction in the housing 2. ) 46 are formed. The guide path 46 has a restraining guide portion 46a having a small vertical dimension on the Y1 side.
The Y2 side is a movable guide portion 46b having a large vertical dimension. Similarly, the lower disk support 5 also has shafts 45, 4
5 are provided and similarly guided by a guide path 46.

The drive base of the disk drive means 30 has a two-stage structure, and the support base 31a is provided with an elastic support member (spring or damper) 47 on the drive base 31 to which the support shaft 38 shown in FIG. Are elastically supported.

A transfer member 51 is provided in the housing 2 as a support transfer means, and a drive groove 51 a for driving the shaft 45 is formed in the transfer member 51. The drive groove 51a is formed with a groove width dimension W which is sufficiently larger than the diameter of the shaft 45.

When the MD supported by the upper disk support 6 is driven, the transfer member 51 is moved in the Y2 direction while the disk drive means 30 is lowered to the standby position as shown in FIG. Is driven. At this time, the shaft 45 is pulled in the Y2 direction by the drive groove 51a of the transfer member 51, and the disk support 6 moves from the first position (i) to the second position (ii).

However, when the disk support 6 is located at the first position (i), the shafts 45 provided on the disk support 6 are restricted by the restraining guide portions 46a of the guide path 46.
Is restrained from above and below. Therefore, when the MD is inserted into the disk support 6 from the entrance 4, the disk support 6 does not move up and down, and
D can be reliably loaded.

However, when the disk support 6 is moved to the second position (ii) by the transfer member 51, the shafts 45, 45 provided on the disk support 6 move
Move to 6b. Therefore, the disc support 6 is released from the constraint in the up-down direction, and the shaft 45 has a vertical movement allowance within the width of the movable guide portion 46b. Further, the shaft 45 has a slight movement margin in the Y direction even within the width dimension W of the drive groove 51a of the transfer member 51. At this time, the disk drive means 30 is raised, and the disk of the selected MD in the disk support 6 is loaded on the support base 31a. At this time, the disk support 6 and the support base 31a
Are elastically supported by the elastic support member 47. Therefore, the disk being driven by the disk drive means 30 is subjected to the vibration absorbing or damping action by the elastic support member 47, and the disk can be driven without being affected by the vibration of the vehicle body.

In the above embodiment, the disk supports 5 and 6 are provided in a two-tiered manner, but only one disk support may be provided. Alternatively, three or more disk supports may be stacked. Also one
Three or more disks may be arranged side by side on one disk support and supported.

The disk is not limited to the one stored in a cartridge like an MD, but may be a disk directly supported by a disk support without having a cartridge.

[0049]

According to the present invention described in detail above, the disks are arranged and stored in the direction of the disk surface, and the disk drive means moves in the direction in which the disks are aligned.
Even when the housing is configured to be thin, a disc selecting operation can be performed. Further, since the disk support moves from the first position to the second position while supporting the plurality of disks, the movement is used to bring the disk support from a restrained state to a state having a movable margin capable of elastically supporting the disk support. Can be set. In the case where the disk support is provided in a plurality of stages, the disk support can be moved and selected together with the plurality of disks, so that the selection operation is simple and the mechanism can be prevented from becoming complicated.

[Brief description of the drawings]

FIG. 1 is a plan view of a disk device according to an embodiment of the present invention;

FIG. 2 is a front view of the disk device shown in FIG. 1;

FIG. 3 is a right side view of the disk device shown in FIG. 1;

FIG. 4 is a right side view showing a disk device according to another embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Case 3 Nose part 4 Doorway 5 Lower stage disk support 6 Upper stage disk support 7,9 Manual bearing 8,10 Female screw bearing 11,12 Guide shaft 15,16 Screw shaft 30 Disk drive means 31 Drive base 32 Turntable 33 Head 35 Selection base 38 Support shaft 41 Loading drive member 42 Incline guide cam 46 Guide path 46a Restricted guide section 46b Movable guide section 47 Elastic support member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tokio Suzuki 1-18 Nishigotanda, Shinagawa-ku, Tokyo Alpine, Inc. F-term (reference) 5D072 AB16 AB35 BA01 BG02 BG05 BG10 EB14

Claims (5)

[Claims] 1. A disk support for supporting a plurality of disks arranged in a disk surface direction in an apparatus main body having a disk entrance formed therein, and a first disk receiving member for receiving a disk inserted from the entrance. And a support moving means for moving between the first position and the second position moved inward from the first position, and a disk supported by the disk support moved to the second position. Opposing disk drive means, and when the disk support moves to the second position, moves the disk drive in a direction along a disk surface of a disk supported by the disk support, and Selecting drive means for selecting a disc; and moving the disc drive means in the direction of the disc support moved to the second position to select the selected disc. Disk apparatus characterized by having a loading drive means for loading said disc driving means. 2. The disk transporter is transported in a direction orthogonal to the direction in which the disks are arranged by the support transporter. 2. The disk device according to claim 1, wherein the disk device is moved in a direction perpendicular to the direction. 3. A plurality of disk supports are provided, and the disk supports at a first position overlap in a thickness direction of a disk, and when any one of the disk supports moves to the second position. Moving at least the center of rotation of the disk supported by the disk support moved to the second position to a position not overlapping with the disk supported by the disk support at the first position, and moving to the second position; 3. The disk device according to claim 1, wherein the disk supported by the moved disk support is drivable by the disk drive unit. 4. A restraining means for restraining the disk support at the first position so as not to move at least in the thickness direction of the disk, and an elastic support member for elastically supporting the disk driving means in a state where the disk is driven. The disc support moved to the second position is released from the restraint by the restraining means, and the disc loaded in the disc driving means at this position is moved together with the disc driving means by the elastic support member. The disk device according to any one of claims 1 to 3, wherein the disk device is brought into an elastically supported state. 5. The apparatus according to claim 1, wherein the entrance formed in the apparatus main body has an opening width that allows each of a plurality of disks to be simultaneously inserted into the disk support at the first position. C. A disk device according to