JP2000315350A - Recording medium loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a recording medium from being damaged, by configuring this device so as to erase drive start information with an eject processing end signal, and ejecting the recording medium when drive start information is stored at the time of turning on a power source. SOLUTION: When an automatic eject mechanism properly ends an ejecting process, a drive stop signal to stop a motor 58 is transmitted and also memory bit (m) (drive start information) in an EEPROM 106 is set to 0. When a power source of an electronic apparatus loaded with a magnetic disk device is turned off during ejecting, a power supply to the motor 58 is also stopped, and the automatic ejecting mechanism is also stopped (an abnormal stop state). The memory bit (m) in the EEPROM 106 is left to have been set to m=1. When the memory bit (m) is judged as m=1 after the power source is turned on to a magnetic disk device, this device is configured so as to forcibly execute an ejecting process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium mounting apparatus, and more particularly to a recording medium mounting apparatus configured to automatically eject a recording medium on which writing or reading has been completed.

[0002]

2. Description of the Related Art For example, an electronic device such as a personal computer or a word processor is equipped with a magnetic disk device as a means for recording information. When a disk cartridge as a recording medium is mounted in the magnetic disk device, the magnetic disk accommodated in the disk cartridge is driven to rotate, and the magnetic head slides on the magnetic disk to perform magnetic recording and reproduction.

In the magnetic disk drive as described above, a disk holder into which a disk cartridge is inserted, and a cartridge insertion / eject position (second position) to a cartridge mounting position (first position) by a disk cartridge insertion operation. Position), and a recording medium mounting device for moving the disk holder from the recording medium unloading position to the recording medium loading position in conjunction with the sliding of the slider.

Generally, in a conventional magnetic disk drive, a disk holder is moved from a recording medium loading position to a recording medium unloading position by pressing an eject button attached to a front end of a slider, and a disk cartridge is ejected. It is configured to: However, as described above, conventionally, since the disk cartridge is ejected by the pressing operation of the eject button, for example, the disk cartridge is ejected even if the ejecting operation is performed while the magnetic head is writing or reading. There was a problem.

[0005] Therefore, a recording medium mounting apparatus employing an auto-ejection mechanism for ejecting a disk cartridge by a driving force of a motor by abolishing a mechanical ejection mechanism using a pressing force of an ejection button as a driving source is being developed. . Therefore, in a recording medium mounting device incorporating an auto-eject mechanism, even if an instruction to eject a disk cartridge is issued, the eject operation is not performed until writing or reading by the magnetic head is completed.

Here, a specific example of a recording medium mounting device incorporating an auto-eject mechanism will be described with reference to FIG. As shown in FIG. 19, the magnetic disk drive 1 includes a disk holder 2 into which a disk cartridge (not shown) is inserted, and a slider 3 that slides in the front-rear direction to move the disk holder 2 up and down. Attached to. The slider 3 is slidably provided on the frame 4 in the directions A and B. Then, the latch lever 5 rotates clockwise by the insertion operation of the disk cartridge, and the disk cartridge shutter (not shown)
Is opened and the lock of the slider 3 is released.

For this reason, the slider 3 urged in the direction A by the spring force of the coil spring 3b slides in the direction A to lower the holder 2 from the recording medium unloading position to the recording medium loading position. Thus, the disc cartridge inserted into the holder 2 is mounted on the turntable. When the ejection signal is output, the motor (not shown) of the automatic ejection mechanism 7 drives the gear 7.
is driven to rotate, and the eject slider 7b having the rack with which the gear 7a meshes is driven in the B direction. As a result, the rising portion 7c of the eject slider 7b comes into contact with the rising portion 3a provided at the left end of the slider 3, and presses in the B direction.

For this reason, the slider 3 slides in the direction B to raise the holder 2 from the recording medium loading position to the recording medium unloading position. When the slider 3 slides in the B direction,
The latch on the latch lever 5 is released. As a result, the latch lever 5 rotates counterclockwise by the spring force of the torsion spring 6 and pushes the disk cartridge in the disk holder 2 in the ejecting direction.

On the upper surface of the disk holder 2, a damper mechanism 8 for buffering the operation of the slider 3 is provided. The damper mechanism 8 includes a damper plate 8a rotatably supported by the slider 3 with one end engaged with the frame 4, and a damper spring 8b for urging the other end of the damper plate 8a to rotate. .

[0010]

However, in the recording medium mounting apparatus incorporating the auto-eject mechanism as described above, since the motor is used as the ejection drive source, the power supply is turned off after the start of the ejection operation. In this case, the ejecting operation stops without being completely finished. Then, when the power is turned on next time in this state, the magnetic disk device determines that the disk is mounted and automatically spins up (the spindle motor starts).

However, as described above, the recording medium mounting apparatus is in a state where the ejecting operation is not completely completed (in a state where the disk loading is incomplete). It may be damaged. There are two ways to deal with this: detecting that the previous eject operation was incomplete,
Also, a method of always performing the ejection process immediately after the power is turned on can be considered.

However, in the above-described method, two sensors are required to detect that the ejection operation is not completed. That is, an ejection completion position sensor for detecting the ejection completion position and a loading completion position sensor for detecting the loading completion position are required. Therefore, if one abnormal position (power supply is cut off during operation) is not considered as described above, one position sensor is sufficient and two sensors must be provided, resulting in an increase in product cost. There is a point.
Further, since it is necessary to read two position sensor outputs output from each sensor, two ports of LSl are also required. For this reason, the number of components may increase, or a large-sized LSI package may have to be used.
This also causes a cost increase.

On the other hand, in the above-mentioned method, there is a demand that the user of the magnetic disk device always wants to use the disk in the device, and the specification that the disk cartridge is ejected every time the power is turned on is defined in a computer. There is a problem that it is hardly accepted by the user as a peripheral device. The present invention has been made in view of the above problems, and has as its object to provide a recording medium mounting apparatus that can prevent a recording medium from being damaged even when power is cut off during an eject operation. .

[0014]

In order to solve the above-mentioned problems, a recording medium mounting apparatus according to the present invention comprises a recording medium discharging switch operated when discharging a recording medium, and a discharging mechanism for discharging the recording medium. A driving unit to be driven, and detecting that the ejection mechanism has completed the ejection process of the storage medium,
Detecting means for outputting a discharge process completion signal, and drive start information indicating that the drive unit has started driving are stored at the start of driving of the drive unit, and the drive start information is output by the output of the discharge process completion signal. The storage unit configured to be erased, and the drive unit when the storage medium stores the drive start information when the recording medium discharge switch is operated and when the power is turned on. And control means for starting and discharging the recording medium.

According to the above configuration, the detection means only needs to detect that the ejection mechanism has completed the ejection processing of the storage medium, so that one detection means is sufficient. Therefore, an increase in cost of the recording medium mounting device can be suppressed. In addition, the storage unit stores the drive start information after the drive unit starts driving until the discharge processing completion signal is output. For this reason, at the time when the power is turned on, whether or not the previous power-off was performed during the ejection of the recording medium, or whether the power was properly Can be determined.

Therefore, when the power is turned on,
If the storage means stores the drive start information, it may be determined that the previous power-off was performed during the ejection of the recording medium. Then, in this case, the control unit performs a process of activating the drive unit and ejecting the recording medium. As a result, the process of ejecting the recording medium is performed only when the previous power-off was performed during the ejection of the recording medium, and when the previous power-off was properly performed, the ejection of the recording medium was performed. May not be performed. Therefore, when the power is properly turned off, the recording / reproducing process can be started while the recording medium is mounted on the recording medium mounting device, and it is possible to respond to a user request.

[0017]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a state before a disk cartridge is inserted in a magnetic disk device to which an embodiment of a recording medium mounting device according to the present invention is applied. FIG. 2 is a plan view showing a disc cartridge mounted state.

As shown in FIGS. 1 and 2, a recording medium mounting device 11 incorporated in a magnetic disk device 10
A disk holder 12 into which a disk cartridge (not shown) is inserted, and a slider 14 that slides in the A and B directions to move the disk holder 12 up and down are mounted on a frame 16. The slider 14 is slidably provided on the frame 16 in the directions A and B, and slides in the direction A by inserting a disk cartridge to lower the holder 12 from the recording medium unloading position to the recording medium loading position.

A turntable 50 driven by a motor for rotating a disk and a head carriage 18 are provided from below the frame 16 so as to protrude above the plane 16a of the frame 16. A circuit board (not shown) having a control circuit is attached to the lower surface of the frame 16. A head carriage driving unit 20 for driving the head carriage 18 and a latch mechanism 22 for locking the slider 14 are provided on the flat surface 16 a of the frame 16.
And an auto-ejection mechanism 24 for driving the slider 14 in the ejecting direction (B direction), and a head carriage lock mechanism 25 for locking the head carriage 18 in a state where it cannot be moved when writing or reading is not performed by the magnetic head. Have been.

As described above, in the present embodiment, the head carriage lock mechanism 25 is provided on the right side of the head carriage 18.
And an auto-eject mechanism 24 is arranged on the left side of the head carriage 18. Also, slider 1
A damper mechanism 26 for buffering the sliding operation of the slider 14 and an erroneous insertion prevention mechanism 28 for preventing the insertion of the disk cartridge when the disk cartridge is inserted in the wrong direction into the disk holder 12 are provided on the lower surface of the slider 4. Is provided. The damper mechanism 26 has a slider 1 with one end 30a engaged with the frame 16 as in the prior art.
Damper plate 30 rotatably supported on the shaft 29
(Indicated by a broken line in FIG. 1), and a damper spring 32 for urging the other end of the damper plate 30 to rotate. One end 32 a of the damper spring 32 is hooked on the hook 30 b of the damper plate 30, and the other end 32 b is hooked on the hook 14 i of the slider 14.

The damper mechanism 26 is connected to the slider 14
Is located on the B direction side from the intermediate position between the A direction side position and the B direction side position, the spring force of the damper spring 32 urges the slider 14 in the B direction.
Is located in the direction A from the intermediate position, the spring force of the damper spring 32 operates to urge the slider 14 in the direction A.

That is, when the slider 14 moves from the position in the direction B to the position in the direction A, the damper mechanism 26
In the first half, the slider 14 is urged in the B direction (the direction opposite to the moving direction of the slider 14), and in the second half, the slider 14 is urged in the A direction (the same direction as the moving direction of the slider 14).
As a result, the initial movement speed of the slider 14 is reduced, and the final movement speed of the slider 14 is increased.

The slider 14 is locked by a latch mechanism 22, and slides in the direction A by inserting the disk cartridge to lower the disk holder 12 from the recording medium unload position to the recording medium load position. The latch mechanism 22 includes a latch lever 44 for locking the slider 14.
And a coil spring 48 for urging the latch lever 44 counterclockwise.

One end of the coil spring 48 is connected to the latch lever 4.
4 and the other end is hooked on the slider 14,
The latch lever 44 is urged in the counterclockwise direction, and the slider 14 is urged in the A direction. Thus, the number of components is reduced by using a common spring for urging the latch lever 44 and a spring for urging the slider 14.

The latch lever 44 is provided with an engaging portion 44 which engages with the shutter of the disk cartridge in the same manner as the conventional one.
a, and a locking portion 44b locked to the rising portion 14g of the slider 14. The latch lever 44 is provided above the slider 14. When the disc cartridge is inserted into the disc holder 12 in a state before the disc is inserted as shown in FIG. 1, as shown in FIG. open. When the disk cartridge is completely inserted into the disk holder 12, the rising portion 14g of the latch lever 44 moves the slider 1
4 is released from the lock on the rising portion 14g.

As a result, the slider 14 slides in the direction A by the spring force of the coil spring 48 hooked on the right end to lower the disk holder 12 to the recording medium loading position. As a result, the magnetic disk of the disk cartridge inserted into the disk holder 12 is mounted at the recording medium loading position, and is rotatably clamped by the turntable 50.

In the disk mounting state shown in FIG. 2, when an eject signal is input by operating the eject button 88, when writing or reading to the magnetic disk mounted as described above is completed, As shown in FIG. 1, the auto-eject mechanism 24 is driven to slide the slider 14 in the
Is raised to the recording medium unload position, and the latch with respect to the latch lever 44 is released.

As a result, the latch lever 44 rotates counterclockwise by the spring force of the coil spring 48 to eject the disk cartridge in the disk holder 12 in the direction A. Therefore, in the auto-ejection mechanism 24, even when an ejection operation is performed while the magnetic head is performing writing or reading, ejection of the disk cartridge is prevented until the writing or reading is completed.

FIGS. 3A and 3B are an enlarged plan view and a left side view showing a main part of the auto-ejection mechanism 24. FIG. The auto-eject mechanism 24 is provided with an MPU 102 described later.
(See FIG. 13). As shown in FIGS. 3A and 3B, the auto-ejection mechanism 24 has a rising portion 52 formed on the left end portion 14f of the slider 14, and an eccentric pin 54 that contacts and drives the rising portion 52. It includes a rotating body 56, a motor 58 for rotating the rotating body 56, and a detection switch 100 arranged to face the lower surface of the rotating body 56.

As shown in FIG. 13, a switch OFF having a semicircular shape as viewed from the bottom is provided on the lower surface of the rotating body 56.
An area 56A and a switch ON area 56B are formed. The switch OFF area 56A and the switch ON area 56B have different thicknesses from each other, so that a step is formed between the switch OFF area 56A and the switch ON area 56B. The switch OFF area 56A
Is a thinned portion of the rotating body 56, and the switch ON region 56B is a thickened portion.

The detection switch 100 is connected to the rotating body 5 described above.
6 is fixed at a predetermined position below. When the detection switch 100 faces the switch OFF area 56A, the detection switch 100 separates from the lower surface of the switch OFF area 56A and
The state becomes F (open). Further, in a state where the detection switch 100 is opposed to the switch ON area 56B, the detection switch 100 is turned on (closed) by being pressed and pressed against the thick switch ON area 56A. Have been.

On the other hand, the rising portion 52 extends obliquely with respect to the insertion / ejection directions (A and B directions) and the C and D directions of the disk cartridge. Therefore, when the eccentric pin 54 presses the rising portion 52 of the slider 14 in the ejecting direction (B direction) by the rotation of the rotating body 56 as described later, the rising portion 52 exerts a force Fa in the B direction and a force Fb in the C direction. Are given. As a result, a force for rotating the slider 14 in the counterclockwise direction acts on the slider 14, and the spring force Fd of the damper spring 32 of the damper mechanism 26 and the spring force Fe of the coil spring 48 for urging the slider 14 in the A direction. The action can be used to cancel the force for turning clockwise.

Therefore, the slider 14 is mounted on the frame 16
Is prevented from being pressed against the side wall, and sliding resistance is reduced. Therefore, the slider 14 can slide smoothly in the ejection direction (B direction). A connector 36 to which the flexible wiring board 34 drawn out from the head carriage 18 is connected and a flexible wiring board 38 drawn out from the auto eject mechanism 24 are connected between the head carriage 18 and the auto-ejection mechanism 24. Connector 40 is attached.

Since the connectors 36 and 40 are provided obliquely with respect to the A and B directions and the C and D directions, the space at the depth can be effectively used. Further, since the flexible wiring boards 34 and 38 are connected to the connectors 36 and 40 so that they are alternately arranged in the opposite directions, the flexible wiring boards 34 and 38 can be wired compactly without crossing each other.

FIG. 4 is an exploded perspective view showing a schematic configuration of the recording medium mounting device. As shown in FIG. 4, the disk holder 12 includes a top plate 12a, and cartridge guide portions 12b and 12c bent to hold the disk cartridge from both sides of the top plate 12a. Therefore, a space surrounded by the top plate 12a and the cartridge guide portions 12b and 12c on both sides becomes a cartridge insertion portion.

Further, on both sides of the disc holder 12,
A pair of engagement pins 12e for engaging with the slider 14 is provided, and guide portions 12
f, 12 g project. These guide portions 12f, 12
g fits into the guide grooves 16d and 16e provided in the side walls 16b and 16c of the frame 16 and
To guide the lifting operation.

The slider 14 is slidably mounted above the disk holder 12 and has a J-shaped flat plate 14.
a and the side surface 14 bent downward from both sides of the flat plate 14a
b, 14c, and inclined grooves 14d provided on the side surfaces 14b, 14c to which the engaging pins 12e of the disk holder 12 fit.
And an engagement hole 14e that engages with a projection 16f projecting from the center of both sides of the frame 16.

The frame 16 has a mounting hole 16g in the center of the flat plate 16a for mounting the turntable 50. FIG. 5 is an exploded perspective view showing a schematic configuration of the head carriage mechanism. As shown in FIG. 5, the head carriage 18 has a carriage main body 19 that supports the lower magnetic head 61 on the top surface of the tip, and a head arm 60 that supports the upper magnetic head 62 on the bottom surface of the tip.

The head carriage 18 is provided movably guided by guide shafts 66 and 68 extending in the front-rear direction (A and B directions). Bearing portions 18a and 18b on which guide shafts 66 and 68 are slidably fitted are provided on left and right side surfaces of the head carriage 18, respectively. The bearing portion 18a is formed of a circular hole through which the main guide shaft 66 passes.
8 is a main bearing for regulating the height position in the left-right direction. Further, the bearing portion 18b is provided on the guide shaft 68.
Is a U-shaped bearing to be fitted, so that only the height position of the head carriage 18 is restricted without restricting the moving direction and the left-right direction.

The head carriage 18 moves in the A and B directions while being guided by the guide shaft 66 and the guide shaft 68 by the driving force from the voice coil motor 64 of the carriage moving mechanism described later. Thereby, the magnetic heads 61 and 62 supported by the head carriage 18 can perform magnetic recording / reproduction by sliding in contact with desired tracks of a magnetic disk (not shown) accommodated in the disk cartridge. .

A lower suspension 70 is fixed to the upper surface of the arm 19a extending in the A and B directions of the carriage body 19 by being sandwiched between the mounting plate 72 and the lower suspension 73 made of a leaf spring. The lower magnetic head 61 is attached via the. The flexible wiring board 34 is soldered to the lower magnetic head 61.

The head arm 60 is connected to the carriage body 19.
Is fixed to the base 19b of the leaf spring 74 via a leaf spring 74.
4 is fixed to the base 19b by the mounting plate 76.
Therefore, the head arm 60 is supported rotatably in the up-down direction by the leaf spring 74 and the torsion spring 7
7 is urged to rotate downward. Also, the head arm 6
The flexible wiring board 34a is soldered to the upper magnetic head 62 attached to the tip of the zero. The flexible wiring board 34a is connected to the flexible wiring board 34 at the rear end of the carriage body 19.

The base 19b of the carriage body 19
Has concave portions 19c and 19d on both left and right sides,
A coil 78 is attached to c and 19d. Coil 7
The center yoke 80 is inserted into the internal space 8. The center yoke 80 has both ends coupled to both side portions 82a and 82b of the side yoke 82, and
8 is held in a direction extending in the movement direction (A, B directions). Further, the side yoke 82 includes two side portions 82a, 82.
A plate-like magnet 84 is attached to the lower surface of b.

Therefore, the coil 7 of the carriage body 19
8 is incorporated so that the upper portion is interposed between the center yoke 80 and the magnet 84, and a driving force in the A and B directions is applied by an electromagnetic repulsive force against the magnetic force of the magnet 84. Therefore, the voice coil motor 64 is composed of the coil 78, the center yoke 80, the side yoke 82, and the magnet 84.

FIG. 6 is a front view of the magnetic disk drive.
As shown in FIG. 6, at the front end of the frame 14,
A front bezel 87 having a disc insertion opening 86 is attached. On the lower right side of the front bezel 87, an eject button 88 is provided. Eject button 88
Is mounted so as to press an eject switch (not shown) arranged inside the front bezel 87 to output an eject signal.

On the back side of the front bezel 87, a flap 89 for closing the disc insertion opening 86 from the inside is provided rotatably in the opening and closing direction. Further, when the auto-eject mechanism 24 fails, the small hole 90 disposed above the disk insertion opening 86 inserts a rod from the outside and presses the rising portion 14j provided at the front end of the slider 14 in the B direction. For eject operation.

FIG. 7 shows the disk holder 12 and the slider 14.
FIG. 10 is a side view showing a disc insertion / ejection state in which the combination of FIG. As shown in FIG.
The engaging pin 1 of the disc holder 12 is
Since 2e is fitted, the sliding operation of the slider 14 drives the engagement pin 12e along the inclined groove 14d.
Therefore, the slider 14 is moved from the cartridge mounting position (first position) to B
When the disk holder 12 slides in the direction to reach the cartridge insertion / ejection position (second position), the disk holder 12 moves up to the recording medium unload position.

When the slider 14 slides in the direction A from the cartridge insertion / ejection position (second position) by the eject operation to the cartridge mounting position (first position), the disk holder 12 loads the recording medium. Descend to position. Therefore, the recording medium transport mechanism is constituted by the disk holder 12 and the slider 14. Here, the auto-eject mechanism 24 constituting a main part of the present invention
Will be described.

FIG. 8 is an enlarged plan view showing the operation state of the auto-eject mechanism 24 before the disk cartridge is inserted. FIG. 9 is an enlarged plan view showing an operation state when a disc cartridge is inserted. FIG. 10 is an enlarged plan view showing an operation state at the time of ejection. FIG. 11 is an enlarged plan view showing the operation state at the latch release setting position. FIG. 12 is an enlarged plan view showing a state where the slider 14 has moved to the innermost position.

As shown in FIG. 8, the auto-eject mechanism 24 before the disk cartridge is inserted
4 slides in the direction B, the rising portion 52 formed on the left end portion 14f of the slider 14
It is in the standby position, which is separated from the rotating body 56 by the diameter of the rotating body 56 in the direction. The standby position of the eccentric pin 54 is set on the D direction side with respect to the imaginary lines in the A and B directions passing through the rotation center of the rotating body 56 in order to increase the movement stroke of the slider 14 by the auto-ejection mechanism 24 as described later. I have.

The rising portion 52 is formed so as to extend obliquely at a predetermined angle θ with respect to the C and D directions orthogonal to the sliding direction (A and B directions) of the slider 14. Next, when inserting the disk cartridge, the latch lever 44 is rotated clockwise by the operation of inserting the disk cartridge into the disk holder 12 as described above, and the insertion of the disk cartridge is completed and the locking of the slider 14 is released. Then, the slider 14 slides in the B direction. Therefore, as shown in FIG. 9, the rising portion 52 provided at the left end of the slider 14 approaches the eccentric pin 54 of the auto-ejection mechanism 24. In this state, the eccentric pin 54
Are not in contact with the rising portion 52 and are separated through the gap A.

Therefore, even when the disk cartridge is inserted into the disk holder 12, the rising portion 52 of the slider 14 does not collide with the eccentric pin 54. Next, the operation in the case where the disk cartridge mounted at the mounting position together with the disk holder 12 is ejected will be described. When the eject button 88 is pressed in a state where writing or reading to or from the magnetic disk accommodated in the disk cartridge is completed, as shown in FIG. 10, an auto-eject mechanism is provided by a control signal from a control circuit (not shown). 24 is driven to rotate and the eccentric pin 54 is rotated.
Is driven to rotate clockwise. Thus, the eccentric pin 54 rotates to a position where the eccentric pin 54 contacts the rising portion 52 together with the rotation of the rotating body 56.

The rising portion 52 is formed obliquely at an angle θ with respect to the directions C and D orthogonal to the sliding directions (A and B directions). Therefore, the eccentric pin 54 presses the rising portion 52 with a force F in a diagonal left direction perpendicular to the rising portion 52 with respect to the sliding direction (A and B directions) of the slider 14. As a result, a pressing force Fy in the B direction and a pressing force Fx in the C direction act on the rising portion 52. Therefore, the slider 14
Is the pressing force Fx in the C direction so as to cancel the moment of turning in the clockwise direction by the pressing force Fx.
Act, the slider slides in the ejecting direction due to the pressing force Fy in the B direction.

The disk holder 12 rises from the recording medium loading position to the recording medium unloading position in conjunction with the sliding operation of the slider 14 in the ejecting direction. Further, when the rotating body 56 rotates clockwise, as shown in FIG. 11, the slider 14 reaches a latch release position where the latch 14 is released from the latch lever 44. Therefore, the latch lever 44 rotates counterclockwise by the spring force of the coil spring 48 and pushes the disk cartridge in the disk holder 12 in the ejecting direction (A direction).

Further, in the latch release state, the eccentric pin 54 moves in the directions B and D while
Will be pressed. In this eject operation state,
The eccentric pin 54 presses the rising portion 52 obliquely to the left with respect to the sliding direction (A and B directions) of the slider 14. As a result, the pressing force Fy in the B direction is applied to the rising portion 52.
And the pressing force Fx in the direction C act. Therefore, the slider 14 is slid in the ejecting direction by the pressing force Fy in the B direction because the pressing force Fx in the C direction acts so as to cancel the moment to rotate clockwise by the pressing force Fx. I do.

The rising portion 52 is formed to extend obliquely at an angle θ with respect to the directions C and D orthogonal to the sliding directions (A and B directions), but the eccentric pin 54 rotates clockwise. As a result, the pressing force Fx in the direction D decreases, and the force for rotating the slider 14 in the counterclockwise direction gradually decreases.
However, the slider 14 is pressed in the direction B and slides in the ejecting direction while the force for rotating the slider 14 in the clockwise direction is kept small.

Further, when the rotating body 56 rotates clockwise, as shown in FIG. 12, it slides in the direction B from the above-mentioned latch release position. The sliding distance B is an overstroke from the latch release position, and the slider 14 is locked at the rising portion 14g by the latching portion 44b of the latch lever 44, and returns to the state before the disk cartridge is inserted. At this time, the pressing force F of the eccentric pin 54 against the rising portion 52 acts substantially in the direction B, but separates from the rising portion 52 as the eccentric pin 54 rotates clockwise. Thereafter, the eccentric pin 54 further rotates clockwise and returns to the above-described standby position shown in FIG.

The auto-eject mechanism 24 includes a rotating body 56
, The standby (stop) position and the moving direction of the auto-eject mechanism 24 can be reduced to one, thereby facilitating the control of the auto-eject mechanism 24. did it.
Next, a control device for controlling the drive of the auto-eject mechanism 24 having the above-described configuration will be described with reference to FIGS. The control device includes the MPU 102 (microprocessor unit), the motor driver 104, and the E
It is composed of an EPROM 106 (non-volatile memory) and the like.

The MPU 102 is connected to the detection switch 100, the motor driver 104, and the EEPROM 106, and outputs a discharge processing completion signal output from the detection switch 100 and driving start information (a discharge processing completion signal, a driving start signal) stored in the EEPROM 106. The motor driver 104 is controlled based on the information described later. As a result, the motor driver 104
The drive control of the motor 58 is performed based on the control signal supplied from the control unit 102.
02 is driven and controlled.

In this embodiment, EE is used as a memory.
The PROM 106 is used even if the power supply to the magnetic disk device is stopped, that is, even if the power of an electronic device (such as a personal computer) provided with the magnetic disk device is turned off. It is for holding. Generally, the EEPROM 106 is provided in an intelligent magnetic disk device, and by using this, it is possible to suppress an increase in cost.

Subsequently, each of the above-described states of the auto-eject mechanism 24 (the state where the disk cartridge is inserted, the state where the ejection is completed, and the state where the disk cartridge is not inserted).
And the signal output from the detection switch 100 (discharge completion signal) will be described mainly with reference to FIGS. Note that the rotating body 5 shown in FIGS.
In FIG. 6, the switch OFF area 56A is outlined, and the switch ON area 56B is matted.

In the disk cartridge inserted state shown in FIGS. 13 and 15, the slider 14 is moving in the direction of arrow A, and the rising portion 52 and the eccentric pin 54 are in a state where they are opposed to each other with a slight distance. I have. Hereinafter, it is assumed that the rotation angle (θ) of the rotating body 56 when the disk cartridge is inserted is θ = 0. The rotating body 56 is driven by the motor 58 in this state and rotates in the direction of the arrow (clockwise) in the figure.

In this disk cartridge inserted state, as shown in FIGS. 13 and 15, the detection switch 100 is opposed to the rotating body 56 switch OFF area 56A. Therefore, the detection switch 100 is turned off as shown in FIG. Also, when the disk cartridge is inserted, the rotating body 56 is rotated clockwise by 180 °.
When rotated, the state shown in FIG. 16 is completed (hereinafter, referred to as an ejection completed state). As described above, while the rotating body 56 rotates clockwise by 180 °,
An eccentric pin 54 provided on the rotating body 56 urges the rising portion 52 to move in the direction of arrow B in the figure. Accordingly, the slider 14
Also moves in the direction of arrow B in the figure, and the above-described ejection operation is performed.

In the ejection completed state, FIG.
As shown in FIG. 6, the detection switch 100 is
6 switch ON area 56B. Therefore, the detection switch 100 is turned ON as shown in FIG.
In the ejection completed state, the movement of the slider 14 in the direction of arrow A in the figure is restricted by being latched by the latch mechanism 22.

Further, from the ejection completed state, the rotating body 56
Is rotated clockwise by 180 °, the disc cartridge is not inserted as shown in FIG. As shown in the figure,
In this ejection completed state, the detection switch 10
0 is again in the state of facing the rotating body 56 switch OFF area 56A, and the detection switch 100 is switched from ON to OFF as shown in FIG.

That is, by detecting that the signal output from the detection switch 100 is switched from ON to OFF, it is possible to detect that the auto-ejection mechanism 24 has completed the ejection process. In the following description, O output from the detection switch 100 will be described.
A signal that switches from N to OFF is referred to as a discharge processing completion signal.

Next, a control operation of the auto-ejection mechanism 24 performed by the MPU 102 will be described with reference to FIG. It should be noted that the process shown in the figure is performed by starting the magnetic disk device on which the auto-eject mechanism 24 is mounted and
It is started by turning on the power to U102.
In general, a magnetic disk drive is not provided with a power switch for an operator to turn on / off, and when an electronic device (a personal computer or the like) provided with the magnetic disk drive is turned on, the magnetic disk drive is turned on. The power is also turned on.

When the control operation shown in FIG. 18 starts, first, in step 10 (in the figure, the step is abbreviated as S).
, The MPU 102 determines whether the memory bit m stored in the EEPROM 106 is set to m = 1. This memory bit m is
02 is set to “1” when a drive signal for driving the motor 58 is transmitted from the motor driver 02 to the motor driver 104.
It is set to “0” when a drive stop signal for stopping the motor 58 is transmitted from the PU 102 to the motor driver 104. Therefore, this memory bit m
Functions as drive start information indicating that the motor 58 has started driving.

If a negative determination is made in step 10, that is, if it is determined that the memory bit m is m = 0 and the motor 58 is in a stopped state, the process proceeds to step 1.
Proceeding to 2, the MPU 102 determines whether the eject button 88 has been pressed. The process of step 12 is performed until the eject button 88 is pressed. Note that the state of the magnetic disk device in which the eject button 88 is pressed is a disk cartridge inserted state in which a disk cartridge is inserted into the magnetic disk (that is, FIG. 15).
This is the state shown in the figure). Also, the rotating body 5 in this state
The rotation angle of No. 6 is 0 ° (see FIG. 14).

If it is determined in step 12 that the eject button 88 has been pressed, the process proceeds to step 14, where
The MPU 102 directs the motor 58 to the motor driver 104.
Is transmitted, and the motor driver 104 activates the motor 58 accordingly. As a result, the auto-ejection mechanism 24 starts the above-described ejection operation. The MPU 102 sets the memory bit m in the EEPROM 106 to m = 1 together with the transmission of the drive signal (step 16).

When the drive of the motor 58 is started by the processing in step 14, the rotating body 56 rotates clockwise from the state shown in FIG. And the rotating body 56 is 180 °
By rotating, the auto-eject mechanism 24 is moved to the position shown in FIG.
6, the disk cartridge is ejected from the magnetic disk device. When the rotating body 56 is rotated by 180 °, the detection switch 100 is in a state of facing the switch ON area 56B of the rotating body 56 as shown in FIG. Therefore, as shown in FIG. 14, the detection switch 100 switches from the OFF state to the ON state.

Then, the motor 58 further rotates, and FIG.
From the state shown in (disk cartridge inserted state)
By rotating by 0 °, the auto-eject mechanism 24
Indicates that the disc cartridge has not been inserted. When the rotating body 56 is rotated by 360 °, the detection switch 100 of the detection switch 100 is in a state of facing the area 56A as shown in FIG. Therefore, as shown in FIG. 14, the detection switch 100 switches from the ON state to the OFF state.

The MPU 102 determines in step 18 whether the detection switch 100 has been switched from the ON state to the OFF state.
Step 1 until switching from the N state to the OFF state
4 is continued to maintain the driving of the motor 58. On the other hand, in step 18, the detection switch 100 is turned on.
If it is determined that the state has been switched to the OFF state, the process proceeds to step 20, and the MPU 102 sends a drive stop signal to the motor driver 104 to stop the motor 58. Accordingly, the motor driver 104 sets the motor 58
Is stopped, and the auto-eject mechanism 24 is also stopped.

Subsequently, in step 22, the MPU 102 transmits the drive stop signal and transmits the EEPR
Set memory bit m in OM 106 to m = 0.
Therefore, when the auto-ejection mechanism 24 properly ends the ejection process, the memory bit m is m = 0. Here, returning to the process of step 10 again, the description will be continued. As described above, when the auto-ejection mechanism 24 properly completes the ejection processing, the memory bit m is m = 0. However, after it is determined in step 12 that the eject button 88 has been operated, step 20 is executed.
Until the motor 58 is stopped (ie, during discharge)
When the power of the electronic device on which the magnetic disk device is mounted is turned off, the power supply to the motor 58 is also stopped, and the auto-eject mechanism 24 is also stopped (hereinafter, such a stopped state is abnormally stopped). State).

When the auto-ejection mechanism 24 is in this abnormally stopped state, the disk cartridge is in the state inside the auto-ejection mechanism 24.
Therefore, as described above, if the spin-up is performed in the abnormal stop state, the auto-ejection mechanism 24 and the magnetic disk may be damaged. Also,
When the auto-eject mechanism 24 is abnormally stopped in this way, the memory bit m in the EEPROM 106, which is a nonvolatile memory that maintains the storage state even when the power is turned off, remains set to m = 1. It has become.
Therefore, after the power is turned on to the magnetic disk device, in step 10 which is first executed, the EEPROM 106
When it is determined that the memory bit m in m = 1, m = 1, it can be determined that the auto-eject mechanism 24 is in an abnormally stopped state in which it has not been stopped normally.

Therefore, in the present embodiment, EE is executed in step 10.
If it is determined that the memory bit m in the PROM 106 is m = 1, the process proceeds to step 14, and regardless of the operation of the eject button 88, the eject process after step 14 is forcibly performed. did. This allows
If the previous power-off was not properly performed and the auto-eject mechanism 24 is in an abnormal stop state, the processing for forcibly ejecting the disk cartridge is performed, so that the auto-eject mechanism 24 and the magnetic disk are damaged. Is reliably prevented from occurring.

When the previous power-off is properly performed, the disk cartridge is not forcibly ejected, so that the recording / reproducing process is started with the disk cartridge mounted in the magnetic disk device. Therefore, it is possible to respond to a user request. Further, in the configuration of the present embodiment, the detection switch 100 only needs to detect that the ejection process of the disk cartridge by the auto-ejection mechanism 24 has been completed (that is, it only needs to detect that the rotating body 56 has rotated 360 °). Good), one sensor is sufficient. Therefore, it is possible to suppress an increase in cost of the magnetic disk device as compared with the conventional configuration in which two sensors are provided.

In the above embodiment, the magnetic disk device has been described as an example. However, the present invention is not limited to this. For example, an optical disk device, a magneto-optical disk device, or a card-shaped device such as a memory card may be used. It is needless to say that the present invention can be applied to a recording / reproducing apparatus or the like in which the recording medium is mounted. In the above embodiment, the configuration in which the slider slides above the disk holder is described as an example. However, the present invention is not limited to this, and the present invention is also applied to a configuration in which the slider slides below the disk holder. can do.

[0079]

As described above, according to the present invention, the detection means only needs to detect that the ejection processing of the storage medium has been completed, so that only one detection means is sufficient. Therefore,
An increase in the cost of the recording medium mounting device can be suppressed.
Further, the processing for discharging the recording medium is performed only when the previous power switch was cut off during the discharge of the recording medium, and when the previous power switch was cut off properly, the processing for discharging the recording medium is performed. Since the discharging process can be configured not to be performed, the recording / reproducing process can be started with the recording medium mounted on the recording medium mounting device when the power switch is properly turned off. And can respond to user requests.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state before a disk cartridge is inserted in a disk device to which an embodiment of a recording medium mounting device according to the present invention is applied.

FIG. 2 is a plan view showing a disc cartridge mounted state.

FIG. 3 is an enlarged view showing a main part of the present invention.

FIG. 4 is an exploded perspective view illustrating a schematic configuration of a recording medium mounting device.

FIG. 5 is an exploded perspective view showing a schematic configuration of a head carriage mechanism.

FIG. 6 is a front view of the magnetic disk drive.

FIG. 7 is a side view showing a disk insertion / ejection state in which a disk holder and a slider are combined.

FIG. 8 is an enlarged plan view showing an operation state of an auto-eject mechanism before a disk cartridge is inserted.

FIG. 9 is an enlarged plan view showing an operation state when a disc cartridge is inserted.

FIG. 10 is an enlarged plan view showing an operation state at the time of ejection.

FIG. 11 is an enlarged plan view showing an operation state at a latch release setting position.

FIG. 12 is an enlarged plan view showing a state where a slider has moved to a deepest position.

FIG. 13 is a system configuration diagram of a control device that controls the recording medium mounting device.

FIG. 14 is a timing chart for explaining a control operation of the control device.

FIG. 15 is a diagram showing a positional relationship between a detection switch and a rotating body in an operation state when a disc cartridge is inserted.

FIG. 16 is a diagram illustrating a positional relationship between a detection switch and a rotating body in a state where a slider has moved to a deepest position.

FIG. 17 is a diagram illustrating a positional relationship between a detection switch and a rotating body in an operation state of an auto-eject mechanism before inserting a disk cartridge.

FIG. 18 is a flowchart showing a control operation of the control device.

FIG. 19 is a plan view showing an example of a recording medium mounting device that has been conventionally considered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Magnetic disk drive 11 Recording medium mounting apparatus 12 Disk holder 14 Slider 16 Frame 18 Head carriage 20 Head carriage drive part 22 Latch mechanism 24 Auto eject mechanism 25 Head carriage lock mechanism 26 Damper mechanism 28 Erroneous insertion prevention mechanism 30 Damper plate 32 Damper spring 34, 38 Flexible wiring board 36, 40 Connector 44 Latch lever 46 Torsion spring 52 Rise 54 Eccentric pin 56 Rotating body 56A Switch OFF area 56B Switch ON area 58 Motor 60 Head arm 61 Lower magnetic head 62 Upper magnetic head 64 Voice coil Motor 78 Coil 80 Center yoke 82 Side yoke 84 Magnet 86 Disk insertion slot 87 Front bezel 88 Eject button 100 Detecting switch 102 MPU 104 motor driver 106 EEPROM

[Procedure amendment]

[Submission date] May 18, 1999 (1999.5.1
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

The latch lever 44 is provided with an engaging portion 44 which engages with the shutter of the disk cartridge in the same manner as the conventional one.
a, and a locking portion 44b locked to the rising portion 14g of the slider 14. Further, the latch lever 44, Hol
It is arranged on the upper part of the die 12 .

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Change

[Correction contents]

If a negative determination is made in step 10, that is, if it is determined that the memory bit m is m = 0 and the motor 58 is in a stopped state, the process proceeds to step 1.
Proceeding to 2, the MPU 102 determines whether the eject button 88 has been pressed. The process of step 12 is performed until the eject button 88 is pressed . Note that the state of the magnetic disk drive where the eject button 88 is pressed is
FIG. 1 shows a disk cartridge inserted state in which a disk cartridge is inserted into a magnetic disk (that is, FIG.
5). Further, the rotation angle of the rotating body 56 in this state is 0 ° (see FIG. 14).

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0072

[Correction method] Change

[Correction contents]

Then, the motor 58 further rotates, and FIG.
From the state shown in (disk cartridge inserted state)
By rotating by 0 °, the auto-eject mechanism 24
Indicates that the disc cartridge has not been inserted. When the rotating body 56 rotates 360 °, the detection switch 100 turns off the rotating body 56 as shown in FIG.
It will be in the state of facing area 56A. Therefore, as shown in FIG. 14, the detection switch 100 switches from the ON state to the OFF state.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name]

[Correction method] Change

[Correction contents]

Subsequently, in step 22, the MPU 102 transmits the drive stop signal and transmits the EEPR
Set memory bit m in OM 106 to m = 0.
Therefore, when the auto-ejection mechanism 24 properly ends the ejection process, the memory bit m is m = 0. Here, returning to the process of step 10 again, the description will be continued. As described above, when the auto-ejection mechanism 24 properly completes the ejection processing, the memory bit m is m = 0. However, after it is determined in step 12 that the eject button 88 has been operated ,
Until the motor 58 is stopped (ie, during discharge)
When the power of the electronic device on which the magnetic disk device is mounted is turned off, the power supply to the motor 58 is also stopped, and the auto-eject mechanism 24 is also stopped (hereinafter, such a stopped state is abnormally stopped). State).

Claims (1)

[Claims] A recording medium ejection switch that is operated when ejecting a recording medium; a driving unit that drives an ejection mechanism that ejects the recording medium; and a notification that the ejection mechanism has completed the ejection processing of the storage medium. Detecting means for detecting and outputting a discharge processing completion signal; drive start information indicating that the drive section has started driving is stored at the start of driving of the drive section; Storage means configured to erase start information; and when the storage medium stores the drive start information when the recording medium discharge switch is operated and when the power is turned on. And a control means for activating a drive unit and ejecting the recording medium.