JPH1064157A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drive disks by making a head go between this disk and another disk on adjacent trays when plural trays are installed in a limited size case of an on-vehicle 1DIN size disk device. SOLUTION: Trays T (T1-T6) mounted with disks D (D1-D6) are piled up in the case 11. Fulcrum projections 13 provided on the case 11 are slid along long groves 16 of the trays T, and fulcrum projections 17 of the trays T is freely slidable in guide grooves 12, and hence each tray T is freely movable inside and outside the case 11. When the tray T is inclined upward along an elevator guide part 12b around the fulcrum projection 13 as a fulcrum, a gap Q is formed between the disk on this tray and the disk in the horizontal posture. The disk can be driven by making a disk driving part and the head, etc., go in the gap Q.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive used for a vehicle or the like, and more particularly, to selecting a desired disk when a plurality of disks are housed in a limited housing such as a 1DIN size. The present invention relates to a disk device capable of recording or reproducing data.

[0002]

2. Description of the Related Art FIG. 8 is a cross-sectional view showing a conventional disk drive in which a plurality of disks are stored in a 1-DIN-sized housing 1 for use in a vehicle. Inside the housing 1, for example, six trays T (T1 to T6) are provided, and on each tray T, one disk D (D1 to D6) is placed. The trays T are arranged at a constant pitch h in the vertical direction in the figure.

FIG. 9 is a side view showing the disk drive means 2 provided in the disk device. In the disk drive means 2, a drive motor M and a rotary drive member (turntable) Ta which is driven to rotate by the drive motor M are provided on a drive chassis 3, and the drive chassis 3 is provided with a recording or opposing disk D facing the disk D. A reproducing head 4 is provided movably.

[0004]

As shown in FIG. 9, in the disk drive means 2, the height H from the upper surface of the rotary drive member Ta to the lower end of the drive motor M is large. On the other hand, when, for example, six trays T are arranged in a case 1 having a limited size such as 1 DIN as shown in FIG. 8, the pitch h of the trays T has a limited size. Therefore, it is impossible to intervene the disk drive means 2 shown in FIG.

Therefore, conventionally, when the tray T is moved up and down in the housing 1 and, for example, the third stage disk D3 is driven, the tray T3 and the trays T1 and T2 above it are moved upward. By moving the trays T4, T5, and T6 downward in the horizontal posture, a space is secured between the trays T3 and T4, and the disk is driven in this space. A structure such as intervening the means 2 is required. However, in order to move each tray T other than the selected tray T upward or downward while keeping the horizontal posture, an extremely complicated mechanism is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. When a plurality of trays are installed in a housing having a limited size, a head intervenes between disks installed in adjacent trays. It is another object of the present invention to provide a disk drive that can drive a disk.

[0007]

According to the present invention, there is provided a disk apparatus comprising: a disk support which is arranged in a plurality of stages in a housing and each of which is supported so as to be tiltable; Inclined transition means for forming a gap between the disc on the disc support and the disc on the disc support adjacent to the attitude, and any one of A rotary drive member for holding and rotating a disk and a head for recording or reproducing the disk to be rotated are provided.

When three or more disk supports are provided, when the predetermined disk support is inclined, all the disk supports located above the disk support are together with the disk support. All the disk supports that are tilted upward or below the disk support are tilted downward together with the disk support, the disk on the predetermined disk support and the disk below it. Alternatively, a gap is formed between the upper disk and the disk located above the disk so that the rotary drive member intervenes.

Each of the disk supports, which are arranged in a plurality of stages in the housing, are guided so as to be able to be taken in and out of the opening of the housing, respectively. The disc supporting body can be configured to be able to rotate to the inclined posture with the opening side of the body as a fulcrum.

[0010] In the disk device of the present invention, disk supports on which disks are mounted are arranged in a housing at a constant pitch. The disk support can be freely taken in and out of the opening of the housing, and is protruded outside the housing and is pulled into the housing when the disk is installed. The movement of the disk support may be manual or may be performed automatically. Alternatively, the disk supports may be provided so as not to protrude from the inside of the housing, and one disk may be installed on each disk support from the outside of the housing.

The above-mentioned movement of the disk support into and out of the housing is achieved by, for example, moving a projection provided at the rear end of the disk support within a guide portion such as a groove provided in the housing or a support member in the housing. The groove is formed in the disk support by sliding a fulcrum projection provided near the opening on the housing side. The tilt of the disk support is also performed by moving the protrusions on a vertically moving guide formed in a vertical direction following the guide. At this time, the fulcrum projection becomes an inclined fulcrum of the disk support.

When one of the disk supports is shifted to the inclined position, a space (gap) is formed between the disk on the disk support and the disk on the disk support adjacent thereto. Can be. This space is formed on the upper surface side of the disk to be selected as in the first embodiment, or is formed on the lower surface side of the disk to be selected as in the second embodiment. Or the one formed on the upper and lower surfaces of the disk as in the third embodiment. Further, in each of the embodiments, the disk support pivots in the tilting direction about the opening of the housing as a fulcrum. For example, the disk support tilts about the back of the housing (the side opposite to the opening) as a fulcrum. It may rotate in the direction.

A disk rotation driving member intervenes in the space between the disk provided on the inclined disk support and the disk adjacent thereto. At this time, the disk supported by the disk support having a horizontal attitude that does not tilt is used as the disk. The support is held by the rotation drive member from below or above. Alternatively, a disk supported by an inclined disk support may be held by the rotary drive member.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1A and 1B show a first embodiment of a disk device according to the present invention, in which FIG. 1A is a side view showing a non-selected state in which no disk is selected, and FIG. 1B is a side view showing a disk selecting operation. 2 is a perspective view showing a tray, and FIG. 3 is a plan view showing a tray in a housing. In this disk drive, an opening 11a is provided on the left end (Y-axis direction (+)) of the housing 11 in the figure. In the housing 11, for example, six stages of trays T (T1 to T6) are provided in a stacked state as a disk support, and the disks D (D1 to D6) are placed on the trays T one by one. .

As shown in FIGS. 2 and 3, on the upper surface of the tray T, there is formed a support portion 15 having a concave shape with a diameter slightly larger than the diameter of the disk D. Is installed. A cutout 15a is formed in the support portion 15 in which the center hole Da of the disk D is located. On both sides of the tray T, Y
Grooves 16 and 16 extending in the direction are formed, and further, at the end on the back side (Y direction (-) side) of the tray side,
Sliding protrusions 17, 17 protruding in the X direction are provided. Side wall 11 of housing 11 for storing tray T shown in FIG.
b, a fulcrum projection 13 projecting inward of the housing 1 inside the opening 11a is provided, and a long groove 16 formed in the tray T is slidably fitted to the fulcrum projection 13. doing. Further, as shown in FIG. 1A, five guide grooves 12 and one guide groove 12A are formed on a side wall 11b of the housing 11 as a guide portion extending in the Y direction.

The five guide grooves 12 are provided in the lowermost tray T
It is formed at a position corresponding to each of the trays T1 to T5 other than 6. The guide groove 12 includes a horizontal guide portion 12a extending linearly in the Y direction, and an elevating guide portion 12b extending upward in a short arc continuously to the Y (-) side end of the horizontal guide portion 12a. Is formed. In the five guide grooves 12, the position of the lifting guide 12b is shifted in the Y direction, and each lifting guide 12b is positioned in front (Y
It is formed on an arc locus centered on the fulcrum projection 13 located in the (+) direction. In addition, the lower tray T6
In the portion corresponding to, a guide groove 12A is provided in the side wall 11b of the housing 11. The lowermost guide groove 12A
Consists of only a horizontal guide portion extending linearly in the Y direction, and does not have the elevating guide portion 12b.

The sliding protrusion 17 provided on the tray T
Are slidably inserted into the guide grooves 12 and 12A. Corresponding to the displacement of the elevation guide portion 12b in the Y direction, in each of the trays T1 to T5, the position where the sliding protrusion 17 is provided on the side surface of the tray is sequentially shifted in the Y direction. Each of the sliding protrusions 17 provided on the trays T1 to T5 is slidably inserted into the corresponding guide groove 12. The sliding protrusion 17 formed on the lowermost tray T6 is slidably inserted into the lowermost guide groove 12A. Therefore, each tray T has the fulcrum projection 1
3 slides between the long groove 16 and the slide protrusion 17 slides between the horizontal guide portion 12a or the guide groove 12A of the guide groove 12 between the projecting position indicated by the solid line and the storage position indicated by the dotted line in FIG. Can be slid linearly. At the position indicated by the solid line in FIG. 3, the tray T partially projects outside the housing 11, and the disc D can be set on the partially projected tray T. Can be taken out.

When the trays T1 to T5 are housed in the housing 11, the sliding projection 17 provided on the side surface of the tray T is located at the lower end of the guide groove 12 in the elevation guide portion 12b. I do. Therefore, when any one of the sliding protrusions 17 of the trays T1 to T5 is lifted along the arc of the elevating guide portion 12b, the trays T1 to T5 can rotate upward with the fulcrum projection 13 as a fulcrum. FIG. 1 (B) shows two
The state in which the sliding projection 17 of the second tray T2 is lifted is shown. In this state, the tray T2 and the tray T1 thereabove rotate upward with the fulcrum projection 13 as a fulcrum. As a result, the tray T in the inclined posture
A space (gap) Q can be formed between the disk D2 supported by the disk 2 and the disk D3 supported by the tray T3 in a horizontal position located below the disk D2.

FIG. 4 shows a state where the disk drive means 18 has intervened in the space Q. The disk drive means 18 is provided in the housing 11, and is provided between a standby position where the disk D on each of the stored trays T deviates from the outer periphery of the disk D and a drive position where the disk D intervenes in the space Q. It is provided so that it can move. For example, the base of the support base 19 of the disk drive means 18 is supported by a support in the housing 11 so as to be rotatable and slidable in the axial direction. When the space Q is formed between any of the trays T, the support base 19 is moved to a height corresponding to the space Q along the axial direction of the column by the shift mechanism provided in the housing 11. Let me do. The support base 19 is rotated about the support column by a rotation drive mechanism also provided in the housing 11, so that the support base 19 can intervene in the space Q.

In the disk drive means 18, a drive motor 20 is mounted on a support base 19 which is rotatably provided as described above, and a rotation drive member 22 is provided on a rotation shaft 21 extending downward from the drive motor 20. Have been.
The rotation drive member 22 is composed of a table portion 22a on which the upper surface of the disk D is installed, and a centering projection 22b fitted into the center hole of the disk D.
The holding claw 22c and the holding claw 22c for projecting radially in the protruding portion 22b in the radial direction to press the center hole Da of the disk D from the inside and fixing the center hole Da of the disk D to the protrusion 22b. A self-clamp mechanism for moving forward and backward from the periphery of the protrusion 22b is provided. The support base 19 is provided with an optical head 23 for recording or reproducing data on or from the disk D. This optical head 2
Numeral 3 indicates that the reading section or the writing section of the objective lens 23a or the like faces downward. The support base 19 is provided with a threat mechanism for moving the optical head 23 in the radial direction of the disk D.

The disc D is set on the support portion 15 of the tray T with the recording surface facing upward. As shown in FIG. 4, when the trays T1 and T2 are inclined upward, the disc driving means 18 enters the space Q between the disc D2 on the tray T2 and the disc D3 on the tray T3, and the disc drive unit 18 faces downward. Of the rotary drive member 22 opposes above the center hole Da of the disk D3 on the tray T3. Then, the support base 19 is lowered by the shift mechanism, the protrusion 22b is fitted into the center hole Da of the disk D3, and the holding claw 22c is expanded and projected in the radial direction by the self-clamp mechanism, thereby the center hole of the disk D3. Da is clamped by the rotation drive member 22. Thereafter, the support base 19 is lifted by the shift mechanism, and the clamped disk D3 is lifted from the tray T3 and driven to rotate, and recording or reproduction is performed by the optical head 23.

FIG. 5 shows an example of a tilt shifting means for tilting the tray. In this inclination shifting means, an inclination driving member 25 which moves forward and backward in the Y direction is provided outside or inside the side wall 11 b of the housing 11. The inclined drive member 25 has a sliding protrusion 1 provided on the tray T.
7 is formed with a pressing inclined portion 25a. When the inclination driving member 25 moves in the Y (+) direction while the sliding projection 17 is located at the lower end of the elevating guide portion 12b, the sliding projection 17 is moved by the pressing inclined portion 25a.
Is lifted, and the tray T is inclined upward as shown in FIG. When the inclination driving member 25 is Y
When the tray T moves to the (-) direction, the tray T that has been lifted up to that time returns to the horizontal position. This return operation may be performed by the weight of each tray T, but each tray T is urged downward by a weak spring, and the tilt drive member 25
When the tray T moves in the (-) direction, the tray T may be able to return to the horizontal posture by the spring force.

Also, only one tilt drive member 25 is provided, and the tilt drive member 25
After moving to the side of the sliding protrusion 17 of the tray T to be lifted and lowered in the direction, it may be moved to the Y (+) direction to lift any of the sliding protrusions 17. In this case, for example, as shown in FIG. 1B, the sliding projection 17 of the second tray T2 from the top is
When the tray T2 is pivoted upward with the fulcrum 13 as a fulcrum, the tray T1
Is lifted by the tray T2 while being superimposed on the tray T2.

Alternatively, the top five trays T1 to T5
Each of the sliding protrusions 17 is provided with an inclined drive member 25, for example, when the tray T2 is lifted by the inclined drive member 25 as shown in FIG. May be lifted individually. Further, as the inclination shifting means, for example, a lifting rotation arm that rotates about one end as a fulcrum is provided, and the sliding projection 17 is lifted by the rotation arm, whereby the tray may be inclined. .

In this disk drive, the tray T is
After the disk is pulled out of the disk drive 1, the disk is placed on the support portion 15, and the disk is stored in the housing 11 as it is, and a selection operation button of one of the disks is pressed, the inclination driving member 25 shown in FIG.
As a result, the upper tray T of the disk to be selected is lifted in an inclined posture together with the tray overlying it. Then, the disk driving means 18 intervenes in the space Q between the inclined tray and the tray located therebelow, and the disk is clamped and driven.

FIG. 6A is a side view showing a second embodiment of the disk drive according to the present invention, and FIG. 6B is a side view showing the inclination shifting means. In the example shown in FIG. 6A, a horizontal guide portion 12a extending linearly in the Y direction is formed in the guide groove 12 in which the sliding protrusion 17 of the lowermost tray T6 slides from the second tray T2 from the top. An elevating guide portion 12b extending downward in a short arc shape from the right end of the drawing is formed,
The elevation guide portion 12b is located on an arc locus centered on the fulcrum projection 13 located in front of the elevation guide portion 12b. It is not necessary to tilt the uppermost tray T1.
The guide groove 12A on which the sliding protrusion 17 of the tray T1 slides is only a horizontal guide portion linearly extending in the Y direction, and is not provided with an elevating guide portion.

As shown in FIG. 6 (B), the inclination shifting means includes an inclination driving member 25 having a pressing inclination portion 25a at the tip.
The inclination driving member 25 is provided with all the sliding protrusions 17 provided on each of the trays T2 to T5.
It is located below. When a disc is not selected, all the tilt drive members 25 are at the positions indicated by broken lines in FIG. Therefore, when the tray T is pushed into the housing 11, the sliding protrusion 17 is supported by the pressing inclined portion 25a of the inclined driving member 25 at the upper end of the elevating guide portion 12b.

FIG. 6A shows a fourth stage disk D4 from the top.
Is selectively driven. At this time, tray T5
And the inclined driving member 25 supporting each sliding protrusion 17 of the tray T6 is Y as shown by a solid line in FIG.
Move to the (-) direction. As a result, the trays T5 and T6 receive a downward force by their own weight or by the force of a weak spring, and tilt downward with the fulcrum projection 13 as a fulcrum. As a result, a space Q is formed between the disks D4 and D5.

6 (A) and 6 (B), the disk D is placed on the support portion 15 of the tray T with the recording surface facing downward. In the disk drive means intervening in the space Q, the rotary drive member (turntable) and the optical head are upward. The rotary drive member faces the notch 15a (see FIGS. 2 and 3) of the tray T4 from below, and the rotary drive member is lifted by the shift mechanism, and the rotary drive member clamps the center hole Da of the disk D4. Then, the disk D4 is rotated while being slightly lifted from the tray T4, and recording or reproduction is performed by the optical head. In addition, in the state of FIG.
The disk D5 mounted on the drive member 5 may be driven by being clamped by the rotary drive member.

FIG. 7A is a partial side view showing a disk drive according to a third embodiment of the present invention, and FIG. 7B is a side view showing an inclination shifting means. In FIG. 7A, a guide groove 12 in which a sliding protrusion 17 of each tray slides has a horizontal guide portion 12a extending linearly in the horizontal direction, and an elevating guide portion 12b extending vertically from the right end of the horizontal guide portion. have. The elevating guide portion 12b is formed on an arc regulation centering on the fulcrum projection 13. Accordingly, each tray T can be tilted up and down with the fulcrum projection 13 as a fulcrum.

In this case, a downward elastic force is applied to each sliding projection 17 shown in FIG. 7A by a leaf spring or the like provided on the side wall 11b. And FIG. 7 (B)
By moving the tilt drive member 25 forward and backward in the Y direction as shown in (1), each tray T can be tilted upward and downward. For example, FIG.
As shown in FIG. 7A, spaces Q1 and Q2 can be secured above and below the disk D3 by tilting all the trays located above and below the disk D3 to be used selectively. Therefore, by inserting the rotation driving member in the space Q1 and interposing the clamp member in the space Q2, the disk on the tray T3 can be clamped by being vertically clamped and driven to rotate.

In the above, the inclination of the disk is
The tray is not limited to the one that is rotated and inclined at the rear end around the front end of the tray. For example, the front end portion may be rotated about the rear end portion of the tray so as to be inclined. Further, when viewed from the opening, the right end side is rotated around the left end side of the tray, and conversely, the left end side is rotated around the right end side of the tray. Good. Furthermore, when the planar shape of the housing in which the tray (disk) is stored is considered to be a quadrangle, the housing is inclined by rotating in the direction of one of the other two vertices around two vertices forming one diagonal. It may be a structure.

As described above, in the disk device according to the present invention, by skewing the tray in the housing, it is possible to efficiently form an empty space (gap) between the disks in which the disk drive unit and the head intervene. . Also,
By moving the support base of the disk drive means to each height position using the shift means, a disk can be selected, and after the disk has been selected, the disk can be accurately loaded on the rotary drive member.

[0034]

According to the present invention described in detail above, the drive can be inserted between the trays on which the discs are placed and the discs can be reproduced, so that the disc can be reproduced in a housing of a predetermined standard size. It is possible to reproduce a disc even when many discs are stored. Further, there is no need for a mechanism for moving the disk or tray out of the housing when selecting a disk, and the mechanism in the housing can be simplified.

[Brief description of the drawings]

FIGS. 1A and 1B show a first embodiment of a disk device according to the present invention, wherein FIG. 1A is a side view showing a disk non-selection operation, FIG.

FIG. 2 is a perspective view of a tray used in the disk device of the present invention,

FIG. 3 is a plan view showing a state in which a tray inside and outside the housing enters and exits;

FIG. 4 is an enlarged side view of a disk device showing a tray and disk driving means;

FIG. 5 is a side view showing a tilt transition unit for tilting the tray;

FIG. 6A is a side view showing a second embodiment of the disk drive according to the present invention, FIG.

FIG. 7A is a side view showing a third embodiment of the present invention, FIG.

FIG. 8 is a sectional view showing a conventional disk device.

FIG. 9 is a side view showing a conventional disk rotation drive mechanism.

[Explanation of symbols]

 Reference Signs List 11 housing 12, 12A guide groove 12a horizontal guide part 12b elevating guide part 13 fulcrum projection 16 long groove 17 sliding projection 18 disk drive means 19 support base 20 drive motor 22 rotation drive member 23 head 25 tilt drive member D, D1, D2 , D3, D4, D5, D6 Disc T, T1, T2, T3, T4, T5, T6 Tray Q Space (gap)

Continued on the front page (72) Inventor Shinji Wakabayashi Alpine Co., Ltd. 1-1-8 Nishi Gotanda, Shinagawa-ku, Tokyo

Claims (3)

[Claims] A disk support that is arranged in a plurality of stages in a housing and is supported in a tiltable manner, and a disk on a disk support in which a desired disk support is tilted and transitioned to an inclined posture; Inclined transition means for forming a gap between the disks on the disk support adjacent thereto,
A rotation drive member that intervenes in the gap and holds and rotates one of the disks located on both sides of the gap;
A disk device, comprising: a head that performs recording or reproduction on a rotationally driven disk. 2. When tilting a given disk support, all disk supports located above the disk support are tilted upward together with the disk support, or all the disk supports located below the disk support are tilted upward. All of the disk supports located on the side are tilted downward together with the disk support, and the rotation drive member is positioned between the disk on the given disk support and the disk located below or above it. The disk device according to claim 1, wherein an intervening gap is formed. 3. The disk supports, which are arranged in a plurality of stages in the housing, are guided so as to be able to be taken in and out of openings of the housing, respectively, and are supported when the disk supports are located in the housing. 3. The disk device according to claim 1, wherein the disk support can be turned to an inclined posture with the opening side of the body as a fulcrum.