JPH11288542A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk device free from damage of the disk by making the disk device such as a CD changer utilizing an in-dash system to continue 'the state capable of pulling out the disk' or 'the state capable of inserting the new disk'. SOLUTION: A control means (microcomputer) 4 is provided for releasing 'the state capable of pulling out the disk' and 'the state capable of inserting the new disk' then housing the disk and a stocker 6 inside the disk device, after the lapse of specified time from the time the disk device becomes 'the state capable of pulling out the disk' or 'the state capable of inserting the new disk', or when the microcomputer 4 becomes the sleeping state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle disk device having a stocker for accommodating a disk, and more particularly to a mechanism for accommodating a disk and a stocker.

[0002]

2. Description of the Related Art An in-dash type CD changer which is a kind of a disk drive will be described below as an example. Single CD
When the changer performs the eject operation of the disc, the disc is ejected to the disc insertion slot, and the disc changer is brought into a "dismountable state". In addition, even if the disk is removed, the stocker keeps the "state (position) in which a new disk can be inserted". In this state, or in the above-mentioned "disc removable state", a microcomputer (hereinafter, "microcomputer") for controlling the operation of the CD changer
Even if the device enters the sleep state, the state is continued.

[0003] In the conventional CD changer, loading and ejecting is performed in a magazine, so that loading and ejecting cannot be performed in disc units.

[0004]

As described above, if the "disk can be removed" state continues, there is a risk that foreign matter may adhere to the disk, the disk may drop for some reason, or the disk may be damaged.

Further, if a disc is forcibly inserted while the stocker is in a "new disc insertable state" and the microcomputer is in a sleep state, the microcomputer cannot recognize the disc and complete loading is not performed. It becomes an unstable state stopped at. Even in this unstable state, there is a possibility that foreign matter adheres to the disk and the disk is damaged as described above, and if resetting is performed in this state, the state where the disk is not properly loaded is continued and the disk is reset. There is a possibility that the initial operation at that time, that is, the operation of checking which stocker is loaded with a disk or not is not performed normally.

Further, when the disc mode is changed from a radio mode other than the CD mode to the CD mode in the "disc ready state" or the "new disc insertable state", the stocker is once moved to the storage position, and Since the disc to be played is set at the play position (the stocker moves back and forth and up and down in the CD changer), there is a problem that it takes a long time from the operation to the CD mode until the sound is output.

The present invention has been made for the purpose of solving the above-described problems, and is in a state where a disk can be removed. "
Another object of the present invention is to obtain a disk device that stores a disk and a stocker in a storage position when the “new disk can be inserted” state continues for a predetermined time or when the CD changer shifts to a sleep state.

[0008]

According to the present invention, there is provided a disk apparatus having a stocker configured to receive a disk and move between a disk insertion or removal position and a storage position. When a predetermined time has elapsed after the stocker has moved to the new disk insertion position, a disk and a stocker storage means for moving the stocker to the storage position are provided.

When a predetermined time has elapsed after the stocker has moved to the disk removing position, a disk and a stocker storing means for storing the removable disk in the stocker and moving the stocker storing the disk to the storing position are provided. It is a thing.

When a first predetermined time has elapsed after the stocker has moved to the new disk insertion position, the stocker is moved to the storage position, and the stocker storing the disk is moved to the disk removal position and then moved to the new position. When a second predetermined time shorter than the first predetermined time has elapsed, a disc and a stocker storage means for storing a removable disk in the stocker and moving the stocker to a storage position are provided.

If the stocker containing the disk is at the disk removal position before the disk device shifts to the sleep state, the disk is stored in the stocker and the stocker is moved to the storage position. Is provided with a disk for moving the stocker to the storage position if the disk is at the new disk insertion position, and a stocker storage means.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described with reference to the drawings showing the embodiments. Embodiment 1 FIG. FIG. 1 is a perspective view of a CD changer according to a first embodiment of the present invention, wherein 1 is a CD changer, 2 is a disc insertion slot, and 3 is a load / eject button.

FIG. 2 is a block diagram showing the configuration of a control system according to the first embodiment. Reference numeral 3 denotes a load / eject button, and reference numeral 4 denotes a control unit which grasps the state of the CD changer 1 and outputs a control signal. Microcomputer, 5 is a timer for counting a predetermined time, 6 is a stocker, 7 is a stocker position detecting means for detecting the position of the stocker 6, and 8 is disposed in the disc insertion slot 2 to determine whether or not a disc is in the disc insertion slot 2. 9 is a pair of rollers for sucking / discharging a disk disposed in the disk insertion slot 2, 10 is a roller driving unit for driving the roller 9, and 11 is a front / rear Stocker drive unit that drives up and down, 12
Denotes a shutter for opening and closing the disk insertion slot 2, 13 denotes a shutter driving unit for driving the shutter 12, 14 denotes a regulator which is an accessory power supply for supplying power to the microcomputer 4, 1
Reference numeral 5 denotes an accessory power on / off detection unit that detects on / off of the accessory power supply 14.

FIG. 3 is a diagram showing the position and state of the disc and each stocker during operation and at rest of the CD changer 1. The same reference numerals as those in FIGS. 1 and 2 denote the same or corresponding parts. , 6a to 6d are stockers, and 16 is a disk. FIG. 3A is a plan view of the CD changer.
Indicate three positions A, B, and C where the steady state is established.
A is a storage position where the disk 16 is stored in the stocker 6, B is a play position, and C is a position where the disk 16 can be removed from the disk insertion opening 2 when a part of the disk 16 is ejected. FIG. 3B is a plan view showing two positions E and F where the stocker 6 is in a steady state in the CD changer 1.
E is a storage position, and F is a storage / discharge position of the disk 16.

FIG. 3C shows all stockers 6a to 6c.
FIG. 6D is a side view showing a “storage state” in which the disk insertion slot 2 is stored in the storage position E, and the disk insertion slot 2 is closed by the shutter 12. FIG. 3D is a side view showing a “disc removable state” in which the third stocker 6c from the top has moved to the storage / discharge position F and sent out to the position C where the disk 16 can be removed. FIG. 3E shows the first stocker 6a from the top.
Is in the disk storage / discharge position F, and the shutter 12
Is a side view showing a "new disc insertable state" in which a new disc is inserted and waiting for a new disc to be inserted from the disc insertion slot 2.

Next, the operation of the control system of the first embodiment will be described with reference to the flowchart of FIG. First, CD
The operation when the operation of loading the disk 16 into the first stocker 6a from the top when the changer 1 is in the "storage state" in FIG. 3C will be described.

When the load / eject button 3 is pressed and a load is commanded, the microcomputer 4 sends a drive signal to the stocker drive section 11 and the shutter drive section 13 to move the stocker 6a to the storage / discharge position F. At the same time, the shutter 12 is opened, and the state shown in FIG. During this time, since the disk presence / absence detection sensor 8 does not detect the disk 16, the microcomputer 4 executes step 1
In step 8, it is determined that “disc without disk” is selected, and the process proceeds to step 8. If “disc flag = 0” in step 8, the process proceeds to step 10. If “disc flag = 1” in step 8, the process of step 9 is performed once. Thereafter, the process proceeds to step 10 in the second process of step 8.

The microcomputer 4 has a CD changer 1 shown in FIG.
Until the state shown in (e) is reached, a "disc cannot be inserted" is determined in step 10 and the process proceeds to step 12, where the timer 5 sets the first predetermined time t1.
(E.g., 20 seconds), and the operation of returning to step 1 is continued. When the CD changer 1 enters the "new disk insertable state" in FIG. 3E, it is determined in step 10 that "new disk can be inserted". To step 11.

If the microcomputer 4 determines in step 11 that the mode is other than the CD mode, the microcomputer 4 determines that "the mode other than the CD is being performed" and proceeds to step 6, where the time t1 (20
Until the time elapses, it is determined that "timer is continuing" and the operation of returning to step 1 is continued. This time t1 is a period during which a new disc can be inserted. When a new disk is loaded during this period, the microcomputer 4 sends a drive signal to the roller drive unit 1.
0, output to the stocker drive unit 11 and the shutter drive unit 13, store the stocker 6 a in the storage position E, and close the disk layer entrance 2 with the shutter 12. When the time t1 elapses after the CD changer 1 enters the “new disk insertable state” in FIG.
To determine that the timer has ended, proceed to step 7, output a drive signal to the roller drive unit 10, the stocker drive unit 11, and the shutter drive unit 13, store the stocker 6a in the storage position E, and insert the disc insertion slot. 2 is closed by the shutter 12. As a result, the CD changer 1 is in the “storage state” in FIG.

As described above, when the first predetermined time t1 has elapsed since the disk loading operation was performed and the "new disk can be inserted" state in FIG. 3 (e), the stocker was moved into the CD changer 1. When the CD mode changes to the CD mode, the CD changer moves the stocker to the storage position E.
The CD can be played simply by moving the disc from the position A to the position B by moving the disc from the position A to the storage / discharge position F.
It is possible to shorten the time from the D-mode operation until the sound is output.

On the other hand, in step 11, the microcomputer 4
When the mode is determined, the process proceeds to step 12, where the first predetermined time t1 is set in the timer 5, and the process returns to step 1. That is, during the CD mode, the microcomputer 4 continues to set the time t1 in the timer 5, and the CD changer 1
The state (e) “new disk can be inserted” is continued.
For this reason, the disk 16 can be replaced with a margin, and the convenience of the apparatus is improved.

Next, FIG. 4 is a flowchart showing the operation when the operation of ejecting the disk 16 in the third stocker 6c from the top when the CD changer 1 is in the "storage state" of FIG. 3C. This will be described with reference to FIG. When the eject operation is performed by pressing the load / eject button 3, the microcomputer 4 sends a drive signal to the roller drive unit 10, the stocker drive unit 11, and the shutter drive unit 13 to move the stocker 6c to the storage / discharge position F. The shutter 16 is opened and the disc 16 is ejected.
(D) Set to “disc ready state”. During this time,
The microcomputer 4 determines that the state of the CD changer 1 is “disc ejected” in step 2, proceeds to step 3, sets “disc flag = 1”, further proceeds from step 4 to step 5, and sets the timer 5 to the second state. Predetermined time t
The operation of setting 2 (for example, 15 seconds) and returning to step 1 is repeated.

When the CD changer 1 is brought into the "disc ready state" in FIG.
Then, it is determined that "the disk can be removed" and the process proceeds to step 6. Until the time t2 elapses, the operation is determined to be "the timer is continuing" and the operation returns to the step 1 is repeated. It is determined that the timer has expired, and the process proceeds to step 7. At step 7, the drive signal is transmitted to the roller drive unit 10, the stocker drive unit 11, and the shutter drive unit 13 to remove the disc 16 that has not been removed from the stocker 6.
Then, the stocker 6a is moved to the storage position E and stored in the storage position E, and the disk insertion slot 2 is closed by the shutter 12. As a result, the CD changer 1 is in the state shown in FIG.
The state shown in FIG. Thereafter, in the CD mode, the CD play is performed, and when the mode is not the CD mode, the “storage state” of FIG. 3C is continued.

As described above, when the second predetermined time t2 elapses after the ejection operation of the disc is performed, the disc 16 that has not been removed is sucked and the CD changer 1 is ejected.
Since it is stored inside, the damage of the disk can be prevented. After that, when the mode is changed to the CD mode, the CD can be played simply by moving the stocker from the storage position E to the storage / discharge position F and moving the disk from the position A to the position B. It is possible to shorten the time until output.

Also, in the first embodiment, the first predetermined time t set in the timer 5 in step 12 at the time of loading is set.
1 (for example, 20 seconds) is set in the timer 5 in step 5 at the time of ejection.
Second), and the time of the “state where a new disk can be inserted” is longer than the time of “the state where a disk can be removed”. For this reason, even if it takes time to insert a new disk or replace a disk, it becomes possible to insert a disk,
The convenience of the device is improved.

Embodiment 2 FIG. FIG. 5 is a flowchart according to the second embodiment of the present invention, and the same steps as those in FIG. 4 indicate the same or corresponding parts. In the second embodiment, a sleep process is added to the first embodiment. The configuration of the control system of the second embodiment is the same as that of FIG. First, when the load / eject button 3 of the CD changer 1 in the sleeping state in FIG. 3C is pressed and the operation of ejecting the disk 16 in the third stocker 6c from the top is performed. The operation will be described with reference to the flowchart of FIG.

When the load / eject button 3 is pressed during sleep, the microcomputer 4 wakes up, sets “wakeup flag = 1”, and sets the timer 5 to the third predetermined time t.
3 (for example, 20 seconds) is set. At this time, the CD changer 1 only wakes up, does not enter the eject operation, and remains in the housed state of FIG. Time t3
When the load / eject button 3 is pressed again during the period of
The microcomputer 4 includes a roller driving unit 10, a stocker driving unit 11,
A drive signal is sent to the shutter drive unit 13 to move the stocker 6c to the storage / discharge position F, and at the same time, the shutter 12 is opened to eject the disk 16, and the "disk can be removed" state in FIG. I do. At this time, the CD changer 1 becomes "disc-eject".

The microcomputer 4 determines in step 2 that "disc is ejected", proceeds to step 3 and sets "disc flag = 1", and then proceeds from step 4 to step 5 where the third timer set in the timer 5 is set. The operation of rewriting the predetermined time t3 to the second predetermined time t2 and returning to step 1 is repeated.

When the CD changer 1 is brought into the "disc ready state" in FIG.
Then, it is determined that "the disk can be removed" and the process proceeds to step 6. Until the time t2 has elapsed, the operation is determined to be "the timer is continuing" and the operation returns to the step 1 is repeated. It is determined that the timer has expired, and the process proceeds to step 7. At step 7, the drive signal is transmitted to the roller drive unit 10, the stocker drive unit 11, and the shutter drive unit 13 to remove the disc 16 that has not been removed from the stocker 6.
Then, the stocker 6c is moved to the storage position E and stored in the storage position E, and the disk insertion slot 2 is closed by the shutter 12. As a result, the CD changer 1 is in the state shown in FIG.
The state shown in FIG.

On the other hand, the CD changer 1 is "loading" during the transition from the "dismountable state" of FIG. 3 (d) to the "storage state" of FIG. 3 (c).
Determines that the wake-up flag = 1 in step 13 and proceeds to step 14. At this point, since the second predetermined time t2 already set in the timer 5 has expired, the microcomputer 4 determines in step 14 that "timer has ended" and proceeds to step 15, where "wakeup flag = 0" To release the wake-up state and enter the sleep state.

As described above, even if the eject operation is performed in the sleep state, the disc that has not been removed is stored in the CD changer, thereby preventing the disc from being damaged.

Next, the first stocker 6 from the top is placed on the CD changer 1 which is sleeping in the "storage state" of FIG.
The operation when the operation of loading the disk 16 by selecting a is performed will be described with reference to the flowchart of FIG. When the load / eject button 3 is pressed during sleep, the microcomputer 4 wakes up, sets “wakeup flag = 1”, and sets the timer 5 to a third predetermined time t3 (for example, 20 seconds). At this time, the CD changer 1 only wakes up, does not enter the eject operation, and remains in the stored state of FIG. When the load / eject button 3 is pressed again during the period of the time t3, the microcomputer 4 causes the stocker driving unit 11 and the shutter driving unit 1 to operate.
3 to move the stocker 6a to the storage / discharge position F, and open the shutter 12 to
(E) "New disk can be inserted". During this time, the disk presence / absence detection sensor 8 does not detect the disk 16, so the microcomputer 4 determines in step 1 that "the disk is not ejected" and proceeds to step 8. If the "disk presence flag = 0" in step 8, the microcomputer 4 proceeds to step 10. ,
If "disc flag = 1" in step 8, the process of step 9 is performed once, and then the process proceeds to step 10 in the second process of step 8.

The microcomputer 4 has a CD changer 1 shown in FIG.
Until the state shown in (e) is reached, a "disc cannot be inserted" is determined in step 10 and the process proceeds to step 12, where the timer 5 sets the first predetermined time t1.
(E.g., 20 seconds), and the operation of returning to step 1 is continued. When the CD changer 1 enters the "new disk insertable state" in FIG. 3E, it is determined in step 10 that "new disk can be inserted". To step 16. At this time, since the accessory power supply 14 is off, the microcomputer 4 determines in step 16 that “accessory power is off” and proceeds to step 6, and determines that “timer is continuing” until the first predetermined time t1 elapses, and proceeds to step 1. Return to

When the time t1 has elapsed since the CD changer 1 was brought into the "new disk insertable state" in FIG. 3 (e), the microcomputer 4 determines in step 6 that "timer has ended" and proceeds to step 7. The drive signal is supplied to the roller drive unit 10,
The output is output to the stocker driving unit 11 and the shutter driving unit 13, the stocker 6 a is stored in the storage position E, and the disk insertion slot 2 is closed by the shutter 12. By this, CD
The changer 1 is in the “storage state” in FIG. FIG.
FIG. 3E shows a state from “a state where a new disk can be inserted”.
During the transition to the “storage state” of (c), the CD changer 1 becomes “loading”, and the microcomputer 4 proceeds to step 13.
Is determined as "Wakeup flag = 1", and step 1
Proceed to 4.

At this point, since the first predetermined time t1 already set in the timer 5 has expired, the microcomputer 4 determines in step 14 that "timer has ended" and proceeds to step 15, where the "wakeup flag = As "0", the wake-up state is released and the apparatus enters the sleep state.

With the above operation, the stocker 6a is stored in the CD changer 1, and the shutter 12 is
, It is possible to prevent the forcible insertion of the disk during sleep. After this, the accessory power supply 14
Is turned on to enter the CD mode, the CD changer 1 can play the CD simply by moving the stocker 6 from the storage position E to the storage / discharge position F and moving the disk 16 from the position A to the position B.

In the second embodiment, FIG.
The operation when the eject operation and the load operation are performed on the CD changer 1 in the sleep state in the “storage state” has been described. However, the “disc removable state” in FIG. 3D or FIG. If the microcomputer 4 receives a command to put the microcomputer 4 into the sleep state in the state of “a state where a new disk can be inserted”, the microcomputer 4 removes the disk 16 from the stocker 6.
a, and the drive signal for moving the stocker 6a to the storage position E is transmitted to the roller driving unit 10, the stocker driving unit 11
Then, the output is output to the shutter driving unit 13, the stocker 6 a storing the disk 16 is stored in the storage position E, and the disk insertion slot 2 is closed by the shutter 12, and then the apparatus shifts to the sleep state. Thereby, the CD changer 1 is in the state shown in FIG.
In the “storage state”.

[0038]

Since the present invention is configured as described above, it has the following effects.

The disk and stocker storing means according to the present invention stores the disk-containing stocker in the disk device after the first predetermined time has elapsed since the CD changer is in a state in which the disk can be removed. Damage can be prevented. After the CD changer is ready to insert a new disc,
After the predetermined time elapses, the empty stocker is stored in the disk device, so that when the play mode is entered, the mode can be immediately shifted to the play mode.

Further, the first predetermined time for maintaining the state in which a new disk can be inserted is made longer than the second predetermined time for maintaining the state in which the disk can be ejected for ejecting the disk. Even if it takes time to insert the file, it can be loaded without any trouble.

When the disk device enters the sleep state, the disk can be removed and the new disk can be inserted, the disk and the stocker containing it are stored in the disk device, and the disk insertion slot is closed. Therefore, it is possible to prevent a disc from being forcibly inserted during sleep.

[Brief description of the drawings]

FIG. 1 is a perspective view of a CD changer according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a control system of the CD changer according to the first embodiment.

FIG. 3 is a diagram showing states and positions of a disc and a stocker when the CD changer according to the first embodiment is operating and at rest.

FIG. 4 is a flowchart of a load / eject operation according to the first embodiment;

FIG. 5 is a flowchart of a load / eject operation according to the second embodiment of the present invention.

[Explanation of symbols]

1 CD changer, 2 disc insertion slot, 3 load / eject button, 4 control section (microcomputer), 5 timer, 6 stocker, 7 stocker position detection section, 8 disc presence / absence detection section, 9 roller, 10 roller drive section, 11
Stocker drive unit, 12 shutter, 13 shutter drive unit, 14 regulator (accessory power supply), 15
Accessory power on / off detector, 16 disks.

Claims (4)

[Claims] 1. A disk device having a stocker configured to accommodate a disk and to be movable between an insertion or removal position of the disk and a storage position, after the stocker moves to a new disk insertion position. A disk device comprising: a disk for moving the stocker to a storage position when a predetermined time has elapsed; and a stocker storage means. 2. A disk device having a stocker configured to accommodate a disk and to be movable between an insertion or removal position of the disk and a storage position. A disk device, comprising: a disk for storing a removable disk in the stocker after a lapse of time, and a storage device for moving the stocker storing the disk to a storage position. 3. A disk device having a stocker configured to accommodate a disk and to be movable between an insertion or removal position of the disk and a storage position, after the stocker moves to a new disk insertion position. When the first predetermined time has elapsed, the stocker is moved to the storage position, and when the second predetermined time shorter than the first predetermined time has elapsed since the stocker storing the disk moved to the disk removal position. A disk device comprising: a disk for accommodating a removable disk in the stocker and moving the stocker to a storage position; and a stocker storage means. 4. A disk device having a stocker configured to accommodate a disk and to be able to move between a disk insertion or removal position and a storage position before the disk device transitions to a sleep state. If the stocker containing the disc is at the disc removal position, the disc is stored in the stocker and the stocker is moved to the storage position.If the stocker is at the new disc insertion position, the stocker is moved to the storage position. A disk device comprising a disk to be moved and a stocker storage means.