JP2000222802A - Disk apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a disk apparatus in which a disk can be taken out while data is being read and written, which prevents the disk from being damaged, which prevents a data processing operation from becoming an error and which is low-cost. SOLUTION: A release lever 21 which is interlocked with the operation of a head support 5 is attached to the head support 5. The lock member 12 of the head support 5 is installed on a chassis 2. The lock member 12 is composed of an L-shaped turning piece 13. The turning piece 13 is urged clockwise. On side of the turning piece 13 is locked in a position which is faced with the erected piece 4e of a slide plate 4. When the head support 5 is retreated to the inner circumferential side of a disk D, the lock member 12 is turned by the moving force of the release lever 21, the coupling of the turning piece 13 to the erected piece 4e is released, and the disk D can be taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive for inserting and removing a disk, and more particularly to a disk drive for restricting the insertion and removal of a disk during data recording / reproduction.

[0002]

2. Description of the Related Art FIG. 11 is a side view showing a disk device 50 for a floppy disk. This disk device 5
0 is a chassis 51, a slide plate 52, a holder 5
And 3. A slide plate 52 is provided on the chassis 51, and the slide plate 52 is
1 can be moved in the front-rear direction (A and B directions in FIG. 11). In addition, a holder 53 in which a disk (a disk case in which a magnetic disk is provided) is inserted and held is guided to the housing so that the holder 53 can move only in the vertical direction. The slide plate 52 and the holder 53 are connected by a coil spring 56, and the slide plate 52 is constantly urged in the direction A in the figure.

[0003] Sliding grooves 58a and 58b are formed on the side wall of the slide plate 52 at front and rear sides, respectively, and slide pieces 55a and 55b formed on the side surface of the holder 53 are provided with the slide grooves 55a and 55b. It slides while catching on the grooves 58a and 58b.

In the above-described disk device 50, FIG.
As shown in FIG. 1, when the holder 53 is raised, the slide plate 52 is locked with the slide plate 52 moved in the direction B in the figure. When the disk is inserted from the direction of arrow E in the figure, the holder 53 receives the disk, the lock on the slide plate 52 is released, and the slide plate 52 is moved in the direction A by the urging force of the coil spring 56. The slide pieces 55a and 55b are inserted into the slide grooves 58a and 58a.
b (similarly on the opposite surface) while sliding down. At this time, the magnetic disk in the disk first contacts the head 54b on the side 0 side, and then the head 54a on the side 1 side.
Descends. As a result, the magnetic disk
The data is read and written while the magnetic disk is rotating in this state.

When the disc is to be taken out, the button 57 is pushed in and the slide plate 52 is moved in the direction B to raise the holder 53, so that the disc is pushed out and ejected by an ejection member (not shown).

[0006]

However, in the conventional disk device 50, the disk can be ejected during data recording or reproduction, and therefore, the disk eject button 57 is erroneously occupied during data recording or reproduction. , There is a problem that the magnetic disks are damaged by the heads 54a and 54b. Further, in the above case, there is a problem that the process of reading and writing data is interrupted in the middle, thereby causing an error in the process, and the error causes a problem in subsequent processes.

That is, in the conventional disk device 50, while data is being read or written, data is read or written while the magnetic disk is sandwiched between the head 54a on the side 1 and the head 54b on the side 0 while sliding. If the disk is taken out while reading / writing data, the magnetic portions of the disk will be damaged particularly at the corners of the heads 54a and 54b. The heads 54a, 54b
May be damaged.

In particular, in the case of a high-capacity floppy disk, the danger is increased because the magnetic layer is thinner and the magnetic disk is rotated at a higher speed than a low-capacity floppy disk.

Therefore, in a high-capacity floppy disk, a motor or the like is used to remove the disk, and when the button for removal is pressed, the head is first retracted from the magnetic disk, and then the disk is moved by the operating force of the motor. An electrical method such as discharging slowly is adopted. However, the method of ejecting the disk using such a motor has a disadvantage that the cost is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and makes it impossible to remove a disk during data reading / writing, thereby preventing the disk from being damaged or causing an error in data processing. It is another object of the present invention to provide a low-cost disk device.

[0011]

SUMMARY OF THE INVENTION According to the present invention, there is provided a rotary drive for rotating a disk, a head for scanning a disk having a central portion mounted on the rotary drive in a radial direction, and a head for supporting the head. A head support for moving the head in the radial direction, guiding means for guiding the disk to a rotary driving unit and discharging the disk from the rotary driving unit, and moving the guiding means to a disk discharging side when performing a disk discharging operation. A moving device for moving the head support to a retracted position on the inner circumference or outer circumference of the disk in a disk device provided with a slider to be operated and A discharge prevention mechanism for releasing the above-mentioned prevention is provided.

In the above-mentioned means, when the disk is inserted, the disk is guided to the rotary drive unit by the guide means, and data is read and written while the head and the disk slide, but the operation of the slider is performed during the data reading and writing. The disc ejection restricts the ejection of the disc. When the head support moves to the retracted position on the inner or outer circumference of the disk, the moving force of the head support causes
By releasing the state where the operation of the slider is blocked, the disk can be taken out.

As described above, since the disk cannot be ejected while data is being read or written, if the disk is accidentally ejected by pressing the disk eject button, the disk may be damaged by the head, or the disk may not be read or written. There is no danger that the disk will be ejected to cause an error in the data processing and a problem will occur in the processing. Moreover, the head support is not an electrical one using a motor or the like, but can control the ejection of the disk only by a mechanical operation, so that it can be manufactured at a low cost.

In particular, in a high-capacity type disk device, the magnetic layer of the disk is formed thin or the disk is rotated at a high speed, so that there is a high risk of damaging the disk. As a countermeasure, a motor for discharging the disk was attached and the electrical processing was performed, which caused a problem in terms of cost.However, the mechanical configuration as described above caused a cost reduction even in high-capacity type disk devices. It can be manufactured at low cost.

Further, the ejection preventing mechanism is normally urged to a position where the slider is prevented from moving to the disk ejection side, and the movement is caused by the moving force of the head support member moving toward the inner or outer periphery. It is preferable to provide a lock member that can be moved in the direction in which is released.

In this case, in order to prevent and release the operation of the slider, for example, a member movable with the movement of the head support is provided integrally with the head support.
Further, a rotatable turning piece as the lock member is provided at a position where the member can be brought into contact when the head support body is retracted to the inner peripheral side or the outer peripheral side of the disk. The moving piece prevents the slider from moving. When the head support retracts toward the inner or outer circumference of the disk, the turning piece is rotated to allow the slider to move.

Further, the guide means is constituted by a holder for holding the inserted disk, and the holder causes the disk to descend to the rotary drive unit and ejects the disk from the rotary drive unit by the forward / backward movement of the slider. The ascent operation can be performed.

By means of the above means, the holder can be moved up and down in conjunction with the moving force of the slider's advancing and retreating operation, and the operation of the slider can be controlled to control the operation of ejecting the disk. As described above, the structure can be simplified by controlling the operation of the slider instead of directly preventing the operation of the holder.

It is preferable that the head be separated from the disk by the raising operation of the holder when the head support moves to the retracted position on the inner or outer peripheral side of the disk.

By the above means, when the head support is moved to the retracted position, the head is separated from the disk so that the disk can be taken out. It is possible to avoid damaging the disc, and to put no extra burden on the head.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk drive according to the present invention will be described below with reference to the drawings. 1 and 2 are side views for explaining the operation of the disk drive of the present invention, FIG. 3 is a plan view showing the disk drive of the present invention, and FIGS. 4 and 6 explain the operation of the disk drive of the present invention. FIG. 7 is a plan view showing a modified example of the disk device of the present invention, and FIGS. 8 to 10 are explanatory diagrams for explaining the operation of the modified example of the disk device of the present invention. When data is not read or written according to the specifications, the disk device described below is retracted to the inner side or outer side of the disk.

As shown in FIG. 1, the disk drive 1 of the present invention has a chassis 2, a holder (guide means) 3, and a slide plate (slider) 4. A slide plate 4 formed in a concave shape is provided on the chassis 2 and can be moved in directions A and B in the figure. Further, a holder 3 capable of storing a disk D is provided in the slide plate 4. In the disk D, a soft magnetic disk is provided in a hard case, and a shutter is provided in a part of the hard case. When the shutter is opened, a part of the magnetic disk is exposed to the outside. It has become.

The side walls of the slide plate 4 are formed with slide grooves 4a and 4b cut obliquely forward and rearward, respectively, and the holder 3 is provided with slide pieces 3a and 3b formed on the side surfaces. Grooves 4a, 4b
It descends while sliding. In the center of both ends of the holder 3, a thin guide plate 3c (same on the opposite side) is integrally formed downward, and a guide groove 2a (opposite) into which the guide plate 3c formed in the chassis 2 can be inserted. The guide plate 3c moves vertically in the guide groove 2a. Thus, the holder 3 is guided by another guide means so as to be movable only in the vertical direction.

Further, the holder 3 and the slide plate 4 are connected by a coil spring 8, and the slide plate 4 is always A in FIG.
Biased in the direction. The holder 3 is a coil spring 8
Is always urged in the B direction.

An arm-shaped head support 5 is provided on the side 1 side of the disk drive 1, and a head 6 is provided at the tip of the head support 5. A head support 15 is provided on the side 0, and a head 16 is provided at a position facing the head 6, so that the disk D can be sandwiched between the heads 6 and 16 from both sides. A torsion coil spring 7 (see FIG. 3) is provided on the upper surface of the head support 5, and constantly biases the head support 5 (head 6) toward the disk D.

As shown in FIG. 3, the head supports 5, 15 are guided by guide shafts 22 in the front-rear direction (AB direction). The head support 15 is driven in the AB direction together with the head support 5 by a linear drive mechanism provided between the chassis 2 and the head support 15. The disk device 1 formed as described above is in the state shown in FIG. 1 when the disk D is not inserted.

The disk D is inserted into the disk device 1,
When the disk D reaches the predetermined position, the lock on the stopper (not shown) formed on the slide plate 4 is released, and the slide plate 4 is moved to A by the urging force of the coil spring 8.
It is urged in the direction to move. At this time, the slide pieces 3a,
3b slides in the slide grooves 4a, 4b while the guide plate 3
c, the entire holder 3 descends (see FIG. 2).

When the holder 3 is lowered to a position where the disk D can be read and written, the head 16 on the side 0 comes into contact with the disk D, and thereafter the head 6 on the side 1 comes into contact with the disk D by the urging force of the torsion coil spring 7. In this case, the head 6 is provided with the projections 17 and 1 formed on the head support 5.
Since the holder 7 is formed so as to cover the holder 3, when the holder 3 is waiting in the state shown in FIG. When the holder 3 descends, the head support 5 descends according to the operation. The disk D is rotated while the heads 6 and 16 hold the disk D, and recording or reproduction of a magnetic signal is performed.

On the other hand, when removing the disk D, the slide plate 4 is retracted in the direction B by pushing the button 11 in the direction B, and the disk D is separated from the rotary drive unit 23. When the button 11 is further depressed, the slide pieces 3a, 3b
Slides in the slide grooves 4a and 4b, and the holder 3 moves up. Then, the slide plate 4 is locked by the stopper, and the disk D is ejected. This state is shown in FIG.

In the disk drive 1 of the present invention, a lock member 12 is provided near the head support 5 and the slide plate 4 as shown in FIG. The lock member 12
Is composed of an L-shaped rotating piece 13, and a bent portion of the rotating piece 13 is rotatably supported by a shaft 13b.
A torsion coil spring 14 is provided on the upper surface of the rotating piece 13.
And one end is locked by a locking pin 19 formed on the rotating piece 13, and the other end is locked by a locking pin 20 provided on the opposite side across the shaft 13 b. The rotating piece 13 is constantly urged in the clockwise direction in the figure by the torsion coil spring 14.

The turning piece 13 has a bent portion formed by a shaft 13b.
One is arranged in parallel with the head support 5 and the other is perpendicular to the head support 5. Is provided, and the rotating piece 13 is locked.

The head support 5 includes a head support 5
A release bar 21 is provided to project in the vertical direction. The release bar 21 is provided behind the lock member 12. As a result, the head support 5
When the head support 5 moves in the direction B, the release bar 21 also moves in the direction B when the head support 5 moves in the direction A. In the example of FIG. 3, the release bar 21 is a bearing that slides on the guide shaft 22, and the head support 5 moves in the AB direction when the release bar 21 slides on the guide shaft 22.

The disc ejection preventing mechanism will be described with reference to FIGS. FIG. 4 shows a state where the disk D is inserted and data is read / written. At this time, FIG.
The slide plate 4 is moving in the direction A as shown in FIG. The slide plate 4 is formed with an upright piece 4e in which a part of the slide plate 4 is raised at a position facing the rotating piece 13. Further, the tip surface 13a and the upright piece 4e of the rotating piece 13 are formed in a tapered shape, and the tip surface 13a and the upright piece 4e are formed.
Are arranged in parallel with each other so that the front end face 13a and the upright piece 4e can come into contact with each other. In addition, the slide plate 4 can enter the lower side of the rotating piece 13 in portions other than the upright piece 4e.

When data is being read or written,
The lock member 12 is always F1 by the torsion coil spring 14.
In this state, even if the button 11 is pressed in this state, the surface of the upright piece 4e and the distal end face 13a of the rotating piece 13 come into contact with each other, and the slide plate 4 can be pushed further. Can not. That is, button 11
Is pressed to move the slide plate 4 in the direction B, the rotating piece 13 and the upstanding piece 4e come into contact with each other. At this time, the tapered portions abut each other. Pressed against the stopper 18. Therefore, when the slide plate 4 is pushed in the direction B, the upright pieces 4e
And the rotating piece 13 do not come off.
Movement in the direction is reliably prevented. Therefore, the disc D is not erroneously ejected during the read / write operation.

FIG. 5 shows a state in which the head support 5 has advanced further than the state shown in FIG. 4 and has reached the retracted position on the inner peripheral side of the disk D. At this time, the rotating piece 13 constituting the lock member 12 rotates counterclockwise around the shaft 13b against the urging force of the torsion coil spring 14 by the moving force of the release bar 21. Due to this rotation, the distal end surface 13a of the rotating piece 13 moves in the direction F2, and the distal end surface 13a comes off the standing piece 4e.

Therefore, as shown in FIG. 6, the upright piece 4e can move forward in the direction B. Therefore, the button 11 for taking out the disk D attached to the slide plate 4 can be pushed in, and the disk D can be taken out.

At this time, since the lock member 12 is located at a position higher than the upper surface of the portion other than the standing piece 4e of the slide plate 4, the engagement between the tip end surface 13a of the rotating piece 13 and the standing piece 4e is released. As a result, the slide plate 4 is
2 can be inserted into the lower surface side, and the disk D can be taken out.

In the present invention, when the head support 5 moves to the retracted position on the inner peripheral side or outer peripheral side of the disk D, the head 6 may be moved away from the disk D by the raising operation of the holder 3. it can. This makes it possible to prevent the disk D from being damaged as compared with the case where the heads 6 and 16 are moved while the heads 6 and 16 are in contact with the disk D. Also, the durability is not reduced.

Next, the disk device 30 of another embodiment will be described.
Will be described with reference to FIGS. The disk device 30 shown in FIG. 7 can take out the disk D when the head 6 provided on the head support 5 is retracted to the outer peripheral side of the disk D. As shown in FIG. 7, a lock member 32 is provided near the head support 5 and the slide plate 34. The lock member 32 is located behind the release bar 21.

The lock member 32 includes an L-shaped rotating piece 3.
3 and is pivotally attached to the bent portion of the rotating piece 33 about a shaft 38. A torsion coil spring 35 is attached to the upper surface of the rotating piece 33, one end of which is a locking pin 36 protruding from the rotating piece 33, and the other end is in the vicinity of the rotating piece 33 (on the chassis 2). ) Are locked by locking pins 37 provided respectively. The rotating piece 3
3 is arranged so that one side is parallel to the head support 5 and the other is perpendicular to the head support 5 with the bent portion as the axis 38 when reading and writing data. Further, in order to dispose as described above, a stopper 39 is provided on the side surface of the rotating piece 33 on the side where the locking pin 36 is formed, and the rotating piece 33 receiving the urging force of the torsion coil spring 35 is attached to the stopper 39. It is locked to. Further, on the head support 5 side, a release bar 21 protruding perpendicular to the head support 5 as in the disk device 1 is attached.

The slide plate 34 is integrally formed with a protruding plate 34f extending to one position of the rotating piece 33, and a standing piece 34 protruding from the protruding plate 34f on the side facing the rotating piece 33.
e is formed. The upright piece 34e and the distal end face 33a of the rotating piece 33 are formed in a tapered shape similarly to the disk device 1, and both are arranged in parallel.

The ejection preventing mechanism of the disk device 30 will be described with reference to FIGS. FIG. 8 shows a state in which data is read and written when the disk D is inserted, the slide plate 34 moves in the direction A, and the holder 3 is lowered as shown in FIG. The heads 6, 16 are in contact with the upper and lower surfaces of the magnetic disk.

In this case, since the lock member 32 is constantly urged in the F4 direction by the torsion coil spring 35, even if the user pushes the button 11 and pushes the slide plate 34 in the B direction to take out the disk D, the standing piece 34e is pressed. Abuts against the distal end surface 33a of the rotating piece 33 so that the slide plate 34 cannot be pushed further.

FIG. 9 shows a state in which the head support 5 is further retracted from the state shown in FIG. At this time, the lock member 32 rotates clockwise (F5 direction) against the urging force of the torsion coil spring 35 around the shaft 38 by the moving force of the release bar 21. Due to this rotation, the tip surface 33a of the rotating piece 33 shifts toward the head support 5 side.
And the standing piece 34e are not opposed to each other.

Therefore, as shown in FIG.
e can move forward, and the slide plate 34 can move forward. Therefore, the button 11 for taking out the disk D attached to the slide plate 34 can be pressed, and the disk D can be taken out.

At this time, as described above, the lock member 32
Is located at a position higher than the upper surface of the portion other than the standing piece 34 e of the slide plate 34,
By releasing the engagement between 3a and the standing piece 34e, the slide plate 34 can enter the lower surface of the lock member 32, and the slide plate 34 can be further advanced.

Also in this case, when the head support 5 moves to the retracted position on the outer peripheral side of the disk D, the holder 3
The head 6 can be moved away from the disk D by the ascending operation.

The disk device 30 is formed as described above, so that when the disk D is taken out during reading and writing of data, the upstanding piece 34e and the tip surface 33a of the rotating piece 33 are formed in a tapered shape. The lock member 32 is urged in the F4 direction shown in FIG. 8 and is locked by the stopper 39, so that the lock member 32 rotates in the opposite direction to F4 to release the lock, and the disk D is erroneously taken out. It is prevented from being lost. As described above, the disk device of the present invention is not limited to the above embodiment, and the shapes of the lock member and the slide plate can be variously changed.

[0049]

According to the disk apparatus of the present invention, the operation of ejecting the disk cannot be performed during the reading / writing of data, so that the button for ejecting the disk is erroneously pressed during the reading / writing of data and the disk is forcibly ejected. Thus, it is possible to prevent the data from being unable to be read or written due to damage to the disk. In addition, since the operation of taking out the disk can be controlled only by the mechanical operation, the disk can be manufactured at a low cost.

[Brief description of the drawings]

FIG. 1 is a side view showing a state of a disk device of the present invention when a disk is ejected.

FIG. 2 is a side view showing a state where data is being read from and written to the disk device;

FIG. 3 is a plan view showing the internal structure of the disk device of the present invention;

FIG. 4 is an operation explanatory diagram showing a state where a disc cannot be ejected;

FIG. 5 is an operation explanatory view showing a state in which the lock of the slide plate is released,

FIG. 6 is an operation explanatory diagram showing a state in which a disk can be taken out;

FIG. 7 is a plan view showing the internal structure of a disk device according to another embodiment of the present invention;

FIG. 8 is an operation explanatory diagram showing a state in which a disc cannot be ejected,

FIG. 9 is an operation explanatory diagram showing a state in which the lock is released,

FIG. 10 is an operation explanatory diagram showing a state in which a disk can be taken;

FIG. 11 is a side view showing a conventional disk device.

[Explanation of symbols]

 D disk 2 Chassis 3 Holder 4, 34 Slide plate 4e, 34e Standing piece 5, 15 Head support 11 Button 12, 32 Lock member 13, 33 Rotating piece 13a, 33a Tip surface 13b, 38 Shaft 14, 35 Torsion coil spring 18 , 39 Stopper 19, 20 Locking pin 21 Release bar 23 Rotary drive unit 34f Projecting plate 36, 37 Locking pin

Claims (4)

[Claims] A rotary drive section for rotating a disk;
A head that radially scans a disk having a central part installed in the rotation driving unit, a head support that supports the head and moves the head in the radial direction, and guides the disk to the rotation driving unit; In a disk device provided with guide means for ejecting from a rotation drive unit and a slider for moving the guide means to the disc ejection side when a disc ejection operation is performed, the slider moves to the disc ejection side. And a discharge prevention mechanism for releasing the block by a moving force when the head support moves to a retracted position on the inner circumference or outer circumference of the disk. 2. The ejection preventing mechanism is normally urged to a position where the slider is prevented from moving to the disk ejection side, and the head support is moved by the moving force moving inward or outward. 2. The disk device according to claim 1, further comprising a lock member that is moved in a direction to release the blocking. 3. The guide means is constituted by a holder for holding an inserted disk, and the slider is moved forward and backward to cause the holder to move the disk down to a rotary drive unit and eject the disk from the rotary drive unit. 3. The disk device according to claim 1, wherein the disk device performs a raising operation. 4. The disk device according to claim 1, wherein when the head support moves to a retracted position on the inner peripheral side or outer peripheral side of the disk, the head is separated from the disk by the raising operation of the holder. .