JPH08279227A - Tape loading device - Google Patents

Abstract

PURPOSE: To shorten the working time when the inclined state of a disk is detected. CONSTITUTION: By a controller 14, such a driving control action that vibration force is imparted to a disk tray 6 is executed when the disk is detected to be inclined and such a driving control action that moving force is imparted to the tray 6 is executed when the disk is detected not to be inclined. Since the vibration force is imparted to the tray 6 by controlling a driving motor 7 by the controller 14 when the disk is detected to be inclined by a light reflection type sensor 12 or 13, the magneto-optical disk D received from a disk hand 16 can be automatically moved and placed on a turntable 3 by the tray 6. Therefore, the hand 16 need not be repeatedly moved with respect to the single magneto-optical disk D.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device suitable for use in a disc device for recording / reproducing information signals on / from a magneto-optical disc.

[0002]

2. Description of the Related Art In recent years, as means for storing data in a computer or the like, a magneto-optical disk has advantages such as a large data storage capacity, high-speed access, and excellent portability. A disk device using a recording medium as a recording medium has been used.

In such a disc device, the disc hand of the disc changer moves in the horizontal and vertical directions to transfer the magneto-optical disc conveyed from the disc storage shelf to the disc tray. It is transferred and placed on top, and recorded / recorded by an external magnetic field generator and an optical pickup device.
There are things that can be regenerated.

Conventionally, a disc loading device in this type of disc device advances and retracts between a tray return position which is a disc transfer position for a disc changer and a tray advancing position near a disc transfer position for a disc table on a base. A disc tray is provided, and two light reflection type sensors that are provided on the base side of the disc tray and detect whether or not the disc is tilted are used.

In the disc loading operation of the disc loading device constructed as above, when the disc tray receives the disc from the disc hand of the disc changer at the upper disc transfer position, the disc tray is vertically lowered and placed on the disc table. Done by.

Further, the disc unloading is carried out by passing the disc to the disc hand of the disc changer when the disc tray vertically moves upward at the disc transfer position below to receive the disc from the disc table.

By the way, in this type of disc loading apparatus, as shown in the flow chart of FIG. 5, both light reflection type sensors are operated at the upper disc transfer position, and "the disc is placed at the regular position of the disc tray. If the "disc is not tilted" state is detected, the disc tray will drop vertically, and only one light reflection sensor will be activated, and the "disc is tilted to the disc tray (tilt with disc)" state When is detected, an error is displayed.

[0008]

However, the conventional disc loading device has only the function of displaying an error externally after detecting the tilted state of the disc, and therefore the disc is tilted in the disc tray. When the disc was placed in this state, the disc changer was used to place the disc again on the disc tray.

As a result, when a single disc is placed on the disc tray, it becomes necessary to repeatedly move the disc changer, and a great deal of time is spent in the work when the disc tilted state is detected. was there.

The present invention has been made in view of the above circumstances, and eliminates the need for repetitive operation of the disc changer when a single disc is placed on the disc tray, thereby detecting a tilted state of the disc. The present invention provides a disc loading device capable of shortening the working time.

[0011]

DISCLOSURE OF THE INVENTION A disk loading device according to the present invention is provided between a tray moving position near a disk transfer position for a disk table on a base and a tray returning position as a disk transfer position for a disk changer. A disc tray that moves forward and backward by a drive motor, a sensor that is provided on the base side of the disc tray and detects whether the disc is tilted, and a controller that is connected to this sensor and that controls the positive / negative rotation operation of the drive motor depending on whether the disc is tilted. This controller is such that the drive control in the detection of the tilted state of the disc gives the vibration force to the disc tray, and the drive control in the detection of the non-tilted state of the disc gives the transfer force to the disc tray. Drive control Are those constituted by controller.

[0012]

According to the present invention, when the sensor detects that the disc is placed on the disc tray in a tilted state, the controller controls the drive motor to apply the forward / backward vibration force to the disc tray. When the sensor detects that the disc is placed on the tray in a non-tilted state, the controller controls the drive motor to apply the forward / backward transfer force to the disc tray.

[0013]

1 (A) and 1 (B) are a plan view and a side view showing the outline of a disc loading apparatus according to the present invention, and FIG. 2 is also for explaining motor drive control of the disc loading apparatus according to the present invention. Block diagram shown in FIG.
FIGS. 4A and 4B are side views showing a non-tilted state and a tilted state of the disc with respect to the disc tray of the disc loading device according to the present invention, and FIG. 4 is for explaining motor drive control of the disc loading device according to the present invention. It is a flowchart shown.

In FIG. 1, a reference numeral 1 is a spindle motor having a motor shaft 1a with a taper extending in the vertical direction, which is mounted on a base 2 for a disk device.

A turntable 3 as a disk table is provided above the base 2 and fixed to the motor shaft 1a of the spindle motor 1.

The turntable 3 is provided with an annular recess 4 that opens upward, and the disk mounting surface 4a on which the magneto-optical disk D is mounted is provided on the peripheral edge of the opening of the recess 4.

Further, in the recess 4 of the turntable 3, a magneto-optical disk D extending around the motor shaft 1a is provided.
An annular magnet 5 for attracting a disk hub (not shown) is attached.

An external magnetic field generator (not shown) is provided above the turntable 3 for moving the magneto-optical disk D at the disk mounting position toward and away from the disk surface, and below the disk radial direction. An optical pickup device (not shown) for moving back and forth is provided.

Reference numeral 6 denotes a disc tray for vertically conveying the magneto-optical disc D, which is accommodated in a casing (not shown) for the disc device, and which moves the tray forward and backward in the vicinity of the disc transfer position with respect to the turntable 3. The drive motor 7 is rotated to move up and down between a position and a tray returning position as a disc transfer position for the disc changer.

The disk tray 6 has a flat disk holding surface 6a for holding the magneto-optical disk D and a disk guiding surface 6b for guiding the magneto-optical disk D on the disk holding surface 6a, and has a substantially U-shaped cross section. It is formed by a tray.

Further, an opening window 8 having a circular shape in plan view, through which the turntable 3 is inserted, is provided in the center of the disc tray 6, and the outer edge of the opening window 8 is circumferentially equidistant. Through holes 9 and 10 arranged in parallel with a space are provided.

Reference numeral 11 denotes a drive force conversion device including a gear transmission mechanism (not shown) for converting the rotational force of the drive motor 7 into the lifting force of the disc tray 6, and the casing (not shown).
It is fixed inside.

Reference numerals 12 and 13 denote two light reflection type sensors which face the opening surfaces of the through holes 9 and 10, and are mounted on the base side of the disc tray 6 via a circuit board (not shown). It is configured to detect whether or not the magneto-optical disk D is tilted on the disk tray 6.

Reference numeral 14 denotes a controller for controlling the positive / negative rotation operation of the drive motor 7 depending on whether or not the magneto-optical disk D is tilted. The controller 14 is connected to the light reflection type sensors 12 and 13 and is used as a loading drive for the drive motor 7. It is connected via the amplifier 15.

The controller 14 performs drive control so that the drive control of the drive motor 7 in the detection of the tilted state of the disc applies a vibration force in the tray advancing / retreating direction to the disc tray 6, and detects the non-tilted state of the disc. The drive control of the drive motor 7 is performed by a controller that controls the drive of applying a transfer force in the tray advancing / retreating direction to the disc tray 6.

Reference numeral 16 denotes a disc storage shelf (not shown)
The disk hand for a disk changer that moves between the disk tray 6 and the disk tray 6 and transfers the magneto-optical disk D at the disk transfer position.

In the disk loading device thus constructed, the two light reflection type sensors 12 and 13 are used.
When it is detected that the magneto-optical disk D is placed on the disk tray 6 in a non-tilted state as shown in FIG. 3 (A) with "disk present", the controller 14 controls the drive motor 7 to drive the disk tray. A transfer force in the advancing / retreating direction is given to 6.

On the other hand, the two light reflection type sensors 12, 13
If one of the two, for example, the light reflection type sensor 12 detects that the magneto-optical disc D is mounted on the disc tray 6 in an inclined state as shown in FIG. 14 is a drive motor 7
Is controlled to apply a vibration force in the forward / backward direction to the disc tray 6.

In this case, the magneto-optical disk D, which is mounted on the disk tray 6 in an inclined state, slides down on the disk guide surface 6b due to vibration, and is mounted on the disk holding surface 6a at the regular position.

When both of the light reflection type sensors 12 and 13 detect "no disk", the controller 14 keeps the rotation stop control of the drive motor 7.

Therefore, in this embodiment, since the magneto-optical disk D received from the disk hand 16 can be automatically transferred and placed on the turntable 3 by the disk tray 6, the disk hand 16 as in the conventional case.
There is no need to repeat the movement operation.

Next, the controller 14 in this embodiment
Drive control of the drive motor 7 by means of FIG. 4 will be described with reference to FIG.

In this drive control, when the magneto-optical disk D is placed from the disk hand 16 on the disk tray 6 waiting at the tray returning position (the uppermost position of the tray), the controller 14 causes the both-light reflection type sensor 12 to operate. , 13
This is performed by receiving a detection signal from the drive motor 7 and controlling the rotation of the drive motor 7.

At this time, the both light reflection type sensors 12, 13
When both of them detect "there is a disc (non-inclined state of the disc)", the controller 14 controls the drive motor 7 to rotate in the forward direction to move the disc tray 6 to the tray forward position (the tray lowermost position).

On the other hand, if, for example, only the light reflection type sensor 12 of the two light reflection type sensors 12 and 13 detects "no disk (inclined state with disk)", the controller 14 controls the rotation of the drive motor 7 in the positive and negative directions. The first vibration force is applied to the tray 6.

This oscillating force is such that after the disc tray 6 is moved for 0.1 second from the uppermost position of the tray to the lowermost position of the tray to stop, the vibration force is reduced to .0 from the stopped position to the uppermost position of the tray. It can be obtained by moving for 1 second.

In this case, since the moving time for the disc tray 6 is short, the same effect as when the impact force is applied to the magneto-optical disc D is obtained.

Then, the controller 14 receives the detection signals from the both light reflection type sensors 12 and 13 again, and controls the rotation of the drive motor 7 according to the detection signals.

That is, the both light reflection type sensors 12, 13
Both detect that "there is a disc (non-tilt state of the disc)", the controller 14 controls the drive motor 7 to rotate in the forward direction to move the disc tray 6 to the tray forward position (the lowermost position of the tray). When, for example, only the light reflection type sensor 13 of the reflection type sensors 12 and 13 detects “no disc (inclined state with disc)”, the controller 14 controls the rotation of the drive motor 7 in the positive and negative directions to cause the disc tray 6 to vibrate for the second time. Give power.

In this way, the rotation control of the drive motor 7 by the controller 14 is performed in advance for the disc tray 6 only when the one light reflection type sensor 12 or the other light reflection type sensor 13 detects "no disk". The vibration force is repeatedly applied up to the set number of times "5".

Here, if the number of times the vibration force is applied to the disc tray 6 exceeds "5", an error is displayed.

In this embodiment, the drive control by the controller 14 is performed by applying the vibration force to the disc tray 6 for a short time, but the present invention is not limited to this, and the tray is not limited thereto. The disc tray 6 may be moved between the backward movement position and the tray forward movement position to apply the vibration force.

Further, in the present embodiment, the case in which the presence or absence of the disc inclination is detected is shown every time the disc tray 6 is applied with the oscillating force once, but the present invention applies the oscillating force a plurality of times. There is no problem even if it is done every time.

Further, the case where the presence / absence of the disc tilt is detected after the vibration force is applied to the disc tray 6 has been shown, but the present invention may of course be performed during the application of the vibration force. .

In addition to this, in the present embodiment, an example has been shown in which the error display is performed by controlling the number of times the vibration force is applied to the disc tray 6, but the present invention is not particularly limited to this, and the application time is set. It may be performed by managing.

[0046]

As described above, according to the present invention, the disc tray which moves forward and backward between the tray forward movement position and the tray backward movement position by the drive motor, and the inclination of the disc provided on the base side of the disc tray. It is equipped with a sensor that detects the presence / absence and a controller that is connected to this sensor and controls the positive / negative rotation operation of the drive motor depending on the presence / absence of tilt of the disk. Since the drive control for applying a force and the drive control for detecting the non-tilted state of the disc are configured by the controller for applying a transfer force to the disc tray, there is no disc on the disc tray. When the sensor detects that it is placed in a tilted state, the controller drives the controller. When the sensor detects that the disc tray is loaded with vibration force in the advancing / retreating direction and the disc is placed on the disc tray without tilting, the controller controls the drive motor to advance / retreat the disc tray. Directional transfer force is applied.

Therefore, since the disc received from the disc changer can be automatically transferred and placed on the turntable by the disc tray, when a single disc is placed on the disc tray as in the conventional case, the disc changer can be mounted. It is not necessary to repeatedly perform the moving operation, and it is possible to shorten the working time when the disc tilted state is detected.

[Brief description of drawings]

1A and 1B are a plan view and a side view schematically showing a disc loading device according to the present invention.

FIG. 2 is a block diagram for explaining the motor drive control of the disk loading device according to the present invention.

3 (A) and 3 (B) are side views showing a non-tilted state and a tilted state of the disc with respect to the disc tray of the disc loading device according to the present invention.

FIG. 4 is a flowchart for explaining motor drive control of the disc loading device according to the present invention.

FIG. 5 is a flowchart shown to explain motor drive control of a conventional disk loading device.

[Explanation of symbols]

 2 ... Base 3 ... Turntable 6 ... Disk tray 7 ... Drive motor 12, 13 ... Light reflection type sensor 14 ... Controller 16 ... Disk hand D ... Magneto-optical disk

Claims (4)

[Claims] 1. A disc tray that advances and retreats by a drive motor between a tray advancing position near a disc transferring position for a disc table on a base and a tray returning position as a disc transferring position for a disc changer; A sensor provided on the base side for detecting whether or not the disc is tilted, and a controller connected to this sensor for controlling the positive / negative rotation operation of the drive motor depending on whether the disc is tilted or not are provided. And a drive control for detecting vibration of the disc tray, and a drive control for detecting non-tilt state of the disc such that drive force is applied to the disc tray. Characterized by And a disc loading device. 2. The disc loading device according to claim 1, wherein the drive control in the detection of the inclined state of the disc by the controller is a drive control for applying an impact force to the disc tray. 3. The disk loading device according to claim 1, wherein the vibration force is applied by setting a time. 4. The disk loading device according to claim 1, wherein the vibration force is applied by setting the number of times.