JPS62212964A - Disk device - Google Patents

Abstract

PURPOSE:To simplify a disk rotating driving part and to improve a vibration resistance characteristic and to correspond to mounting of the titled device on a vehicle by shifting and selecting a disk only in a magazine. CONSTITUTION:When either of plural disks 25 stored in a magazine 19 is called, a disk shifting member 30 shifts the disk 25 in the F direction of an arrow in the figure, positions it at the desired disk device in the magazine 19. Further, after a driving lever 24 in the magazine 19 is operated, the disk 25 is slid on a disk guiding part 31 in the magazine, the tip of the disk 25 is geared to a disk roller 26 of a disk rotating driving part 20 and a driven roller 27, and transported to the position of a disk clamper 23 and a disk clamping hub 22 provided on the shaft of a motor 21 for rotating a disk by the turning of a disk roller 27, the clamping position of the disk is confirmed by a detecting means, the disk clamper 23 and the driven side roller 27 of the disk roller 26 are shifted in the disk clamping hub 22 direction and the disk 25 is clamped.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a so-called disc device with an autochanger, which is equipped with a plurality of discs such as optical discs, and is equipped with a disc autochanger mechanism for automatically changing the discs as needed.

2. Description of the Related Art In recent years, disc devices that record or reproduce digital signal recording media called compact discs (hereinafter referred to as C and D) by optical means have rapidly become popular. A disk device has been devised that is equipped with an autochanger mechanism that stores C and D in advance in a magazine and randomly calls out necessary recording signals as needed.

The basic structure of the conventional disk device mentioned above will be explained below with reference to the drawings.

FIG. 4 shows a partially sectional plan view of a conventional disc device with an autochanger, and FIG. 5 shows a side sectional view of the main part of the same disc device. In Figures 4 and 5, 1 is
A magazine 2 stores replacement disks, and 2 is a disk rotation drive unit. The disk rotation drive unit 2 includes a disk rotation motor 3, a disk clamp hub 13 provided on the shaft of the disk rotation motor 3, a disk clamper 4, and a drive means (not shown) provided within the magazine 1. A disk roller 6 that sends out a disk 8 sent out by a drive lever 6 that is driven by the drive lever 6 to the disk rotation drive section 2, and a drive shaft 9 fixed to a case 7 that supports the disk rotation drive section 2. It consists of an inclined plate cam 1o that moves in the direction shown in the figure by a driving means (not shown), and an upper and lower guide plate 11. When loading a plurality of disks 8 stored in the magazine 1, the drive shaft 9,
The inclined plate cam 10 and the upper and lower guide plates 11 are interlocked,
The disk rotation drive section 2 is moved in the direction of arrow B in the figure to position a desired disk within the magazine 1. Further, the drive lever 5 in the magazine 1 operates, and the disk 8 slides on the disk guide section 12 within the magazine by 5 bays, causing the disk rotation drive section 2 to move.
After the tip of the disc 8 is bitten by the disc roller 6 of the disc roller 6, and the disc roller 6 rotates, the disc 8 is transported to the position of the disc clamp hub 13 provided on the shaft of the disc thinner 4 and the disc rotation motor 3. , the clamping position of the disk is confirmed by a disk detection means (not shown), and the driven side roller 14 of the disk clamper 4 and the disk roller 6 is moved by a driving means (not shown).
is lowered toward the disk clamp hub 13, and the disk 8 is clamped.

After detecting that the disc is further clamped, the disc rotation motor 3 rotates, and the disc is rotationally driven.

Furthermore, a recording or reading section (not shown) operates in the radial direction of the disk and reads desired information while detecting signals on the disk.

In addition, when calling up another disk in magazine 1, the above-mentioned operation is once reversed, and disk 8 is held in the magazine by a disk biasing spring 6/15 provided in the magazine. After that, the disk rotation drive section 2 moves again in the direction of arrow B and shifts to the disk conveyance operation.As another conventional example, as shown in FIG. A method has also been proposed in which the magazine 16 is moved when the disk 17 is mounted on the disk rotation drive unit 18 to position the desired disk.

Problems to be Solved by the Invention In any of the above-mentioned conventional disk devices with an autochanger, as shown in FIG. 4, the disks housed in the magazine 1,
Since the disks rotating on the disk rotation drive unit 2 side are configured in a completely independent state within a plane area, the 0 dimension in FIG. As AV equipment and the like have become more compact in recent years, there has been a problem in that the space occupied by the disk device has increased.

In addition, as disk devices equipped with the above-mentioned autochanger mechanism are increasingly installed in vehicles, there is not only the problem of the installation space mentioned above, but also the need to store the entire disk rotation drive unit or to accommodate multiple disks. The entire magazine must be moved by a complicated mechanism, and in-vehicle AV
When trying to make equipment energy-saving, an extremely large amount of power is required to move the disk rotation drive unit and the magazine in a short period of time, which is a particularly big issue as electric actuators are increasingly used in automobiles. ing.

In addition, this type of disk device reduces access time, including disk recall, and improves grayability.
The above-mentioned disk recall structure is also inefficient in terms of the need to improve the performance.

Furthermore, when considering the vibration resistance characteristics for in-vehicle use, the above-mentioned conventional disk device with an autochanger requires a complicated support system, especially when moving the disk rotation drive unit and calling up a disk. However, due to the large weight, there are many problems such as a significant deterioration in the operating vibration characteristics of the disk device.

The present invention has been made in view of the above problems, and is capable of solving the above problems with an extremely simple configuration.As disc devices with autochangers are becoming lighter, thinner, shorter, and more compact in the future, and are being mounted on vehicles, there will be great progress. The present invention provides an extremely useful device.Means for Solving the ProblemsMeans for solving the problems of the conventional disk device with an autochanger described above will be described below.

■ To address the limitations of in-vehicle installation and miniaturization due to the increased installation area of a disc device with an autochanger, we have developed a rotating disc on the disc rotation drive unit,
By arranging the other disks waiting on the magazine side so as to intersect with each other in substantially parallel planes in the disk device, the depth or width of the device is reduced by the amount of the intersection.

9 be.

■ Increasing the power of the device by moving the entire disk rotation drive unit or the entire magazine containing multiple disks using a complicated mechanism, increasing access time, reducing vibration resistance, reducing playability, and installing it in vehicles. In order to solve the problem of the difficulty of selecting a disk stored in the magazine, the disk in the magazine is moved.

Effect: By solving the problem (2) above, in the conventional method, the maximum side length of the device could not be made less than twice the disk diameter, but in the present invention, for example, in the case of C, D, C, D
Since the diameter of , is 120%, it can be reduced to 240X or less.

The above solution (■) moves the disks in the magazine, which saves energy in moving power, speeds up access time, simplifies the disk rotation drive unit equipped with the disk information reading unit, improves vibration resistance, and improves playability. It is possible to solve problems such as improving the ability of the device and making it compatible with in-vehicle applications.

10 base/Example The structure of the example and its effects will be explained in detail below. FIG. 1 shows a partially sectional plan view showing an embodiment of a disk device with an autochanger according to the present invention, and FIG.
shows a side sectional view of the main parts of the same disk device.

In FIGS. 1 and 2, reference numeral 19 indicates a magazine in which replacement disks are stored, and 2o indicates a disk rotation drive unit. The disk rotation drive unit 20 includes a disk rotation motor 21, a disk clamp hub 22 provided on the shaft of the disk rotation motor, and a disk clamper 2.
3, a disk roller 26 which is provided in the magazine 19 and which sends out the disk 26 sent out by a drive lever 24 reversely driven by a drive means (not shown) to the disk rotation drive section, and which faces the disk roller 26. A driven row 227 and a casing 2 that supports the various component parts.
8, and the magazine 19 moves and selects the magazine case 29 and the disk 25 with respect to the disk rotation drive unit 20, and rotates the disk around the selected disk within the magazine. It is comprised of a plurality of disk moving members 30 that act to provide a gap E that is at least larger than the plate thickness of the disk in the direction of the rotation axis when the disk is moved. When calling up any one of the plurality of disks 25 stored in the magazine 19, the disk moving member 30 is operated by a drive means (not shown) to move the disk 25 in the direction of arrow F in the figure and move the disk 25 inside the magazine 19. position the disc at the desired position. Further, the drive lever 24 in the magazine 19 operates, the disk 25 slides on the disk guide section 31 in the magazine, and the tip of the disk 26 is bitten by the disk roller 26 of the disk rotation drive section 20 and the driven roller 27. Disc roller 2
7, the disc clamper 23 and
After the disk is transported to the position of the disk clamp hub 22 provided on the shaft of the disk rotation motor 21, the disk detection means (not shown) confirms the clamping position of the disk, and the disk clamper 23 and the disk roller are moved by the drive means (not shown). 26 driven side rollers 27,
The disk clamp hub 22 is moved toward the disk 2
5 is clamped.

After detecting that the disc is further clamped, the disc rotation motor 21 rotates, and the disc is rotationally driven. Further, a recording or reading section (not shown) operates in the rotational radial direction of the disk, and is configured to call out desired information while detecting signals on the disk. Also, calls out other disks in the magazine 19. In this case, the above-mentioned operation is once reversed, and after the disk 25 is held in the magazine by the disk urging means 32 provided in the magazine, the disk 25 is again moved by the operation of the disk moving member 3o. It is configured to move in the direction of arrow F and transition to a disk transport operation. Further, when the disk 25 in the magazine 19 is moved by the disk moving member 3o, a desired disk is moved and selected with respect to the disk rotation drive section 20, and at the same time, the disk 13 page 7 selected to be moved is moved. A gap E having at least the thickness of the disk is set in the direction of the rotational axis of the disk with the center at the center.

FIG. 2a shows a sectional view of a main part of the disk device according to the present invention after the above-mentioned movement of the disk 25 has been selected.
The figure shows a sectional view of the main part after the disk has been conveyed and clamped. In FIG. 2a, the disk moving member 30 sets a gap E that is at least the thickness of the disk below or above (lower in this figure) the selected disk 25 to be moved relative to the disk rotation drive unit 20. The reason is, for example, that the pitch G at which the plurality of disks in the magazine are held and the amount H of movement of the disk clamper 23 and the driven roller 27 provided in the disk rotation drive section become H)G. In the case of a disk device configuration such as that shown in FIG. i When using the multi-rotation drive unit 20, it is necessary to set the means for moving the disks in the magazine such as 14 bases where H<G◇ Also, the pitch G at which the plurality of disks 25 in the magazine are held is , it is possible to eliminate the contact between the above-mentioned working parts by making the configuration such that the state is always H (G). Furthermore, in the disk device according to the present invention shown in FIG. 3, the disk 34 stored in the magazine 33 are stored at equal pitches in the plate thickness direction, and the positional relationship between the disk clamper 36 provided in the disk rotation drive unit 36 and the amount of movement of the driven roller 37 is K)4, for example, At the same time as the disk 34 is clamped to the disk rotation drive section 35, the lifting member 38 is moved by a driving means (not shown).
The effect of the present invention can also be obtained by driving the entire disk rotation driving section 35 by the amount described above, as shown in FIG.

Furthermore, it goes without saying that the same effect can be obtained by lifting the magazine 33 side by an amount K when clamping the disk.

15 In addition, in the disk device according to the present embodiment shown in FIGS. 1 and 2, the disk moving member 3o for moving the disk 26 in the magazine 19 is partially constructed using screws with different leads. However, even if the disk is moved using an inclined plate cam or the like as shown in FIGS. 3 and 4, the same effect as the disk device according to the present invention can be obtained.

Effects of the Invention In the disk device according to the present invention, in the conventional system,
For example, C and D because the maximum side length of the device could not be made less than twice the disk diameter.

When used for, since the diameter of C8D is 120%,
It can be made smaller than 240X and can greatly contribute to the downsizing of recent AV equipment.

In addition, unlike the conventional system in which the entire disk rotation drive unit or the entire magazine body had to be moved to sort out the disks, the disk device according to the present invention moves only the disks inside the magazine. ,Energy saving of moving power for sorting.

Faster access times, including disk movement time.

By simplifying the disk rotation drive section that is equipped with a disk information reading section that is sensitive to vibrations, the vibration resistance is improved, grayability is improved, and the present invention enables the disk device to be installed in a vehicle, among other benefits that were not available before. It is possible to provide a disk device with low cost.

[Brief explanation of drawings]

FIG. 1 is a partially sectional plan view of a disk device according to an embodiment of the present invention, FIGS. 2a and 2b are side sectional views of the same essential parts, and FIG. side sectional view,
FIG. 4 is a partially sectional plan view of a conventional disk device;
FIG. 5 is a side sectional view of the same essential part, and FIG. 6 is a schematic side sectional view of the essential part of another conventional disk device. 19.33... Makashin, 20.35... River...
Disk rotation drive unit, 24... Drive lever, 2
5, 34...Disc, 29...Magazine case, 3o...Disk moving member, 31
...Disk guide section, 32...Disc biasing means, 38.River...Lifting member 0

Claims (3)

[Claims] (1) A magazine capable of storing a plurality of disks with each disk having a common rotation center axis, a disk rotation drive unit having a rotation center axis that is different from and parallel to the center axis of the disks of this magazine, and means for selecting a disk and mounting/demounting the selected disk on the disk rotation drive section, wherein the disk rotating on the disk rotation drive section and other disks waiting in the magazine are disks. They are arranged so that they intersect with each other with an appropriate gap in the device, and when selecting the disks stored in the magazine, after the disks rotated by the disk rotation drive unit are once stored in the magazine in the direction of the disk surface. . A disk device configured to relatively move the disk rotation drive unit and the disk of the magazine in a rotation axis or in a direction parallel to this axis. (2) Move the disk rotation drive unit or magazine,
After selecting a disk, when loading or unloading the disk into the disk rotation drive unit, the position where the disk is transferred from the magazine in the plane direction on the rotation center axis of the disk rotation drive unit is the same position as the disk rotation drive unit. 2. The disk device according to claim 1, wherein the rotary drive section or the magazine moves in the direction of the rotation axis of the disk by a difference from a position where it is mounted on the drive section. (3) The relative positional relationship between the magazine and the disk rotation drive unit is fixed, and the disk in the magazine is configured to be movable relative to the magazine in the direction of the rotation center axis, and When selecting a disk, it is necessary to consider the difference between the position where the disk is transferred from the magazine in the plane direction on the central axis of rotation of the disk rotation drive unit and the position where the same disk is mounted on the disk rotation drive unit. Claim 2, characterized in that when the disk moves, a gap is provided between the disk in the magazine and the disk opposing it in the direction of the central axis of rotation of the disk. disk device.