JPS5928268A - Floppy disk device - Google Patents

Abstract

PURPOSE:To prevent the breakdown of both a floppy disk and a magnetic disk, by adding a roll mechanism to attain automatic adsorption and discharge of the floppy disk in accordance with the door open/close signal and an insertion detecting signal. CONSTITUTION:When a door 5 is opened, a sucking roll 25 of a roller mechanism 2 interlocking the door 5 has a contact with a roller 24. A supporter 26 is attracted to a solenoid 27 by a control circuit 32. Then the roll 25 has a contact with a driving roll 21 and is turned toward an arrow mark of a dotted line. When a floppy disk FD1 is inserted up to the position of the roll 25, both roll 25 and FD1 are sent up to the inside. When the door 5 is closed, the mechanism 2 is detached from the FD1. When the door 5 is opened again, a door switch 7 detects the opening of the door. A switch 8 detects that the FD1 is set inside a floppy disk device, and then the driving of the solenoid 27 is cut off by the circuit 32. Then the supporter 26 is pushed back, and the roll 25 is separated from the roll 21 and has a contact with a reversing roll 22 to turn a discharging roll 23. Thus the FD1 is discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floppy disk device, and more particularly to a floppy disk device including a floppy disk suction and ejection mechanism.

Conventional floppy disk devices have a structure in which when a floppy disk, which is a recording medium, is inserted into the device, the floppy disk is pushed into the device, and a door provided at the front is closed.

In addition, when taking out a floppy disk from the device, the door must be opened and pulled out by hand, or the floppy disk can be popped out halfway at the same time as the door is opened using a spring mechanism provided within the device.

Therefore, when inserting a floppy disk, it was possible to ensure that the floppy disk was inserted. In addition, when taking out the floppy disk, it is difficult to take it out, and the floppy disk suddenly pops out due to the spring mechanism, causing contact with the magnetic head of the spinneret, which is the rotating support for the floppy disk, and damaging the floppy disk or destroying the magnetic head. There were drawbacks.

SUMMARY OF THE INVENTION An object of the present invention is to provide a floppy disk device that can automatically suck in and eject a floppy disk without damaging the floppy disk or destroying the magnetic head.

That is, the purpose of the present invention is to prevent damage to the floppy disk and anxiety caused to the user due to the above-mentioned insertion of the floppy disk in an uncertain manner, as well as damage to the floppy disk due to difficulty in ejecting the floppy disk or damage to the floppy disk due to the sudden ejection of the floppy disk. An object of the present invention is to provide a floppy disk device that can prevent the head from being destroyed.

The floppy disk device of the present invention includes a spindle motor for rotating a floppy disk, a door switch that outputs a door opening/closing signal in response to opening and closing of the door, and a door switch that detects insertion of the floppy disk and outputs an insertion detection signal. an insertion detection switch; and a control circuit that outputs a solenoid drive signal for driving a solenoid when the door opening/closing signal indicates opening and the insertion detection signal indicates that the floppy disk is not inserted. ,
It is driven by the rotation of the spindle motor and contacts the floppy disk when the door opening/closing signal instructs to open, and when the solenoid drive signal is output, the inserted floppy disk is sucked and the solenoid drive signal a roller mechanism that ejects the inserted floppy disk when the floppy disk is not output, and a roller disconnection that disconnects the roller mechanism from the floppy disk when the door opening/closing signal instructs closing. It consists of a mechanism.

That is, the floppy disk device of the present invention includes a spindle motor that rotates a floppy disk, and a spindle motor that uses this as a power source to automatically suck up a floppy disk that is inserted halfway and automatically suck up a floppy disk that is housed in the floppy disk device. a roller mechanism that ejects the floppy disk, a roller separation mechanism that disconnects the roller mechanism from contact with the floppy disk in conjunction with closing the door, and an insertion detection switch that detects that the floppy disk has been inserted.
It consists of a door switch that detects the opening and closing of the door, and a control circuit that determines whether to suck in or eject the floppy disk.

According to the above configuration, there are problems such as damage to the floppy disk due to unreliable insertion of the floppy disk and a feeling of uneasiness, damage to the floppy disk due to difficulty in ejecting the floppy disk, or damage to the floppy disk and destruction of the magnetic head. can be solved and the purpose of the present invention can be completely achieved.

5- That is, in the floppy disk device of the present invention, a floppy disk is taken into and ejected from the device by a roller mechanism powered by a spindle motor that rotates the floppy disk.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
FIG. 3 is a partial side view of the spindle motor shown in the figure.

The floppy disk device shown in FIG. 1 includes a floppy disk 1 as a recording medium, a roller mechanism 2 for suctioning and ejecting the floppy disk 1, and a drive roller 2 accommodated in the roller mechanism and transmitting rotation of a spindle motor 4.
a discharge roller 23 for discharging the floppy disk 1;
A reversing roller 22 that transmits the rotation of the driving roller 21 to the ejecting roller 23, a suction roller 25 that suctions the floppy disk 1, and a support that supports the driving roller 21, the ejecting roller 23, the reversing roller 22, and the suction roller 256-. body 26 and a solenoid 27 for moving the support 26 in order to transmit the rotation of the drive roller 21 to the ejection roller 23 or to the suction roller 25.
and a roller 24 that supports the floppy disk 1.
A door 5 and a lawn-separation mechanism 3 that disconnects the roller mechanism 2 from the floppy disk 1 in conjunction with the door 5.
, a door switch 7 that detects the opening and closing of the door, and an insertion detection switch 8 that detects the insertion of the floppy disk 1.
It is composed of a spindle motor 4 for rotating the floppy disk 1, and a control port M32 for controlling suction and ejection of the floppy disk.

Control circuit 32 is illustrated in detail in FIG. In the control circuit 32 shown in FIG. 3, the insertion detection signal a&'! from the insertion detection switch 8 detects that the floppy disk 1 is inserted into the device. , D type flip-flop 30
and is supplied to the inverter 28. The output from the inverter 28 and the door opening/closing signal output from the door switch 7 are ANDed by an AND circuit 29 and supplied as a suction instruction signal C to a D-type flip-flop 30. Freely drive.

Next, the operation of the embodiment shown in FIGS. 1 and 2 will be explained.

Referring to FIG. 1, when the door 5 of the floppy disk device is opened, it is linked to the door! The suction roller 25 of the roller mechanism 2 contacts the roller 24. At this time,
The support body 26 is attracted by a solenoid 27 controlled by a control circuit 32, and the suction roller 25 comes into contact with a drive roller 21 powered by the spindle motor 4 and rotates in the direction of the dashed arrow.

Next, when the floppy disk 1 is inserted to the position of the suction roller 25, the floppy disk 1 sandwiched between the suction roller 25 and the fourth roller 24 is fed into the interior.

When the door is closed, the roller mechanism 2 is removed from the floppy disk 1 and does not apply any force to the floppy disk 1.

Next, when the door 5 is opened, the door switch 7 detects this, and a signal obtained from the insertion detection switch 8 that detects that the floppy disk 1 is accommodated in the device is sent to the control circuit 32. This control circuit 32
The drive of the solenoid 27 is cut off by the control of
The support body 26 is pushed back to the front, and the suction roller 25 is released from the drive roller 21, and now comes into contact with the reversing roller 22, and rotation is transmitted to the discharge roller 23.

Therefore, the floppy disk 1 sandwiched between the ejection roller 23 and the roller 24 is ejected to the front.

Next, the operation of the control circuit 32 will be explained in detail with reference to FIG.

First, when the door 5 is opened, the door switch 7' detects this and ANDs the door opening/closing signal shown in FIG.
The signal is sent to circuit 29. Further, an insertion detection switch 8 for detecting insertion of the floppy disk 1 sends an insertion detection signal a shown in FIG. 4 to the flip 9-flop 30 and the inverter 28.

The output of the inverter 28 and the door opening/closing signal from the door switch 7 are logically multiplied by an AND circuit 29 and inputted as a suction instruction signal C to a flip-flop 30. 7 lip-flop 30 sets the insertion detection signal a shown in FIG. 4 at the rising edge of the suction instruction signal C shown in FIG. 4, and outputs the solenoid drive signal d shown in FIG.

The solenoid drive signal d output from the flip-flop 30 is amplified by the amplifier 31 and drives the solenoid 27.

Next, when the floppy disk 1 is inserted into the device, the insertion detection signal a output from the insertion detection switch 8 rises to 111 levels, and the suction instruction signal C output from the AND circuit 29 falls to 1lO11, causing the flip-flop The solenoid drive signal d output from step 30 is 11'.
Retained as a rubel.

Next, when the door 5 is closed, the door opening/closing signal output from the door switch 7 becomes It0 level and 110 level.

When the door 5 is opened, the door opening/closing signal outputted from the door switch 7 rises from the IO1 level to the IlI'' level, and the suction instruction signal C' outputted from the AND circuit 29 also rises to the l1I11 level, causing the flip-flop and flop 30 to rise.
sets the III level signal of the insertion detection signal a output from the insertion detection switch 8, and the flip-flop 30
The solenoid drive signal d output from the IQ level falls to the IQ level.

Therefore, the amplifier 31 receives the input signal and disconnects the drive of the solenoid 27.

Next, when the floppy disk 1 is removed from the device, the insertion detection switch 8 detects this and the insertion detection signal a becomes 1.
The It0 level falls from 111 level, the suction instruction signal C output from the AND circuit 29 rises from the wO1 level to the l1I11 level, the solenoid drive signal d output from the flip-flop 30 becomes 1111 level again, and the solenoid 27 is driven. be done.

As described above, the control circuit 32 controls the solenoid 27 attached to the roller mechanism 2, and controls the solenoid 27 attached to the roller mechanism 2.
The support body 26 of the roller mechanism 2 is moved by the operation of
Depending on the position of the support 26, either the ejecting roller 23 or the suction roller 25 rotates to suction and eject the floppy disk 1.

By adding a roller mechanism, the floppy disk device of the present invention can automatically suction and eject the floppy disk according to the door opening/closing signal and the insertion detection signal, so it has the effect of preventing damage to the floppy disk and destruction of the magnetic disk. There is.

That is, the floppy disk device of the present invention is equipped with a floppy disk suction and ejection mechanism powered by the rotation of a spindle motor, which suctions the floppy disk into the device and ejects it to the outside of the device, thereby preventing damage to the floppy disk. This has the effect of being able to prevent this and improve operability.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
A partial side view of the spindle motor shown in the figure, FIG.
4 is a detailed block diagram of the control circuit shown in the figure, and FIG. 4 is a timing chart showing signal waveforms of each part of the control circuit shown in FIG. 1... Floppy disk, 2... Roller mechanism, 3... Roller separation mechanism, 4...
...Spindle motor, 5...Door, 6.
...Spring, 7. Group, door switch, 8.
... Insertion detection switch, 21 ... Drive roller, 22 ... Reverse roller, 23 ...
...Discharge roller, 24...CI-Lar-125
...Suction roller, 26... Support body,
27... Solenoid, 28... Inverter, 29... AND circuit, 30...
Flip-flop, 31...Amplifier, 32...
...Control circuit, a...Insertion detection signal, b.
...Door opening/closing signal, C...Suction instruction signal, d...Solenoid drive signal. 13- Figure 1 Figure 2 Figure 3 Figure Aoi Figure 4 347-

Claims (1)

[Claims] a spindle motor for rotating the floppy disk; a door switch that outputs a door opening/closing signal in response to opening/closing of the door; an insertion detection switch that detects insertion of the floppy disk and outputs an insertion detection signal; a control circuit that outputs a solenoid drive signal for driving a solenoid when the signal indicates opening and the insertion detection signal indicates that the floppy disk is not inserted; and a control circuit that is driven by the rotation of the spindle motor. When the door opening/closing signal instructs opening, the floppy disk is contacted, and when the solenoid drive signal is output, the inserted floppy disk is sucked, and when the solenoid drive signal is not output, the floppy disk is inserted. A roller mechanism for ejecting the floppy disk that has been removed, and a roller separation mechanism for separating contact between the roller mechanism and the floppy disk when the door opening/closing signal instructs the door to close. floppy disk device.