JPS63161562A - Ejection mechanism for floppy disk device - Google Patents

Abstract

PURPOSE:To protect a disk from being ejected by mistake by locking an ejector means of a ejection mechanism during the read/write operation of a floppy disk drive (FDD). CONSTITUTION:When a READY-signal is outputted from the FDD under the disk loading state, an ejector 18 is locked to be prohibited from moving according to an ejector locking signal I from a CPU 28. That is, when the FDD becomes ready for commencing its drive (under the starting condition for the read/write operation, inclusive of seek operation), the ejector 18 is locked so that the disk can not be ejected, even if an ejection button 13 is pushed. Consequently, the disk is never ejected at the time of read/write operation on this disk, even if the ejection button 13 is actuated by accident.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention particularly relates to the ejection of a floppy disk drive equipped with an eject lock mechanism.

(Prior Art) In recent years, floppy disk devices that use magnetic recording media (disks) housed in hard cases have been developed. In this floppy disk device, a disk inserted into a disk drive (FDD) is held by a receiver, and movement of the receiver causes the disk to be clamped to a spindle hub of a spindle mechanism. The receiver is moved by an ejector (11111 consisting of an eject plate or the like) toward the spindle hub (downward) when loading a disk, and upward when ejecting the disk. The ejector moves in a horizontal direction parallel to the direction in which the disk is inserted or taken out, moves toward the disk insertion slot (frontward) when inserting the disk, and moves toward the rear when ejecting the disk. When ejecting, use the eject button located near the disc insertion slot.
The ejector moves. That is, by operating the eject button, the loaded disc is placed in an unloaded state and is further ejected from the insertion slot.

By the way, while driving the FDD (read/read including seek operation)
(during a write operation), the ejector may operate due to an erroneous operation of the eject button, and the disk loaded in the FDD may be ejected.

When such a situation occurs, the disk during read/write operations is removed from the FDD, which may cause problems such as data that is partially recorded on the disk being destroyed.

(Problems to be Solved by the Invention) In the conventional FDD eject mechanism, a disk loaded into the spindle mechanism may be erroneously ejected due to malfunction of the ejector.

Therefore, there is a problem in that inconvenient situations such as data recorded on the disk are destroyed.

An object of the present invention is to provide an eject mechanism for a floppy disk device that can prevent a disk loaded into an FDD from being erroneously ejected and reliably prevent problems such as destruction of data recorded on the disk. It is about providing.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention locks the disk drive at the start of driving after loading the magnetic recording medium to prohibit the operation of the ejector, and releases the lock at the time of ejecting the disk drive. This is an eject mechanism for a floppy disk device, which is equipped with an eject lock control means that enables an ejector to operate. The ejector moves horizontally with respect to the movement of the receiver, and moves the receiver downward when loading and upward when ejecting. When the receiver holds a magnetic recording medium and the spindle mechanism side is facing downward, it moves up and down to
When recording, the magnetic recording medium is moved downward.

With such an ejector mechanism, the ejector is locked when the FDD is driven, so that the loaded disk will not be erroneously ejected. Furthermore, the ejector is unlocked at the time of ejection.

(Example) The present invention will be described in detail below with reference to the drawings. The first reason is the disk drive (
FDD), and FIG. 2 is a perspective view showing a partial configuration of its eject mechanism. As shown in FIG. 1, the FDO consists of a frame 10. It faces a front panel 12 in which a disk insertion slot 11 is formed, an eject button 13 arranged on the front panel 12, and a receiver 14. The receiver 14 holds the disk inserted through the disk insertion slot 11 and loads it onto a spindle hub (not shown) of the spindle mechanism. The magnetic head 15 is mounted on a carriage 16 and performs data read/write operations on a loaded disk. The carriage 16 is guided by rails 17 and moves linearly in the radial direction of the disk, causing the magnetic head 15 to seek over the disk.

The receiver 14 is configured to move up and down in conjunction with the operation of the ejector 18. As shown in the second factor, the ejector 18 includes an eject plate 18a, and moves in a horizontal direction parallel to the direction in which the disk is taken in and taken out. The ejector 18 moves toward the disk insertion slot 11 (frontward) when inserting a disk, and moves toward the rear when ejecting a disk. As shown in FIG. 6, the receiver 14 is equipped with a guide bin 14a on the side surface, and this guide bin 14a engages with an inclined hole 18b formed on the side surface of the eject plate 18a, and the receiver 14 is guided into the inclined hole 18b. and move up and down.

The ejector 18 is located in the back direction (hereinafter referred to as the rear direction) with respect to the front panel 12 when unloading the disk, and the receiver 14 is located in the upward direction. This state is latched by a catch mechanism (19 in FIG. 1) provided on the frame 10.

The latch mechanism 19 includes a latch spring, a latch plate, and the like, and is configured so that the receiver 14 positioned upward is supported by the latch plate.

As shown in FIG. 6, the disk 20 is inserted into the disk insertion slot 1
1 into the receiver 14, the latching state of the latch mechanism is released, and the receiver 14 becomes movable downward (ie, toward the spindle structure).

When the disk 20 is inserted, the eject plate 18a of the ejector 18 moves forward (towards the disk insertion slot 11). As a result, the receiver 14 is guided by the inclined hole 18b and moves downward to load the disk 2° onto the spindle hub of the spindle mechanism.

Here, as shown in FIG. 1, the eject lock mechanism 2
1 is provided. As shown in FIG. 2, the eject lock mechanism 21 includes a locking member 22 and a transmission bottle 23.
, a rotation shaft 24, a spring 25, and a solenoid 26. The locking member 22 rotates around a rotational shaft 24, and the plate 18 of the ejector 18 at the time of O-do.
This is a member for locking so as to prohibit the operation of a. The transmission pin 23 is a pin for transmitting the operation of the solenoid 26 to the locking member 22. Solenoid 26
includes a solenoid coil and a plunger 26a, and when a drive current is supplied to the solenoid coil, the plunger 26a
B'a is configured to move in a straight line (Fig. 5).

The FDD includes a solenoid drive circuit 27 for driving the solenoid 26, as shown in FIG. The solenoid drive circuit 27 is connected to the host system (CPU) 2B.
When the eject lock signal I is transferred from the solenoid 26, the solenoid 26 is driven to lock the ejector 18.

Further, when the lock release signal R is transferred from the CPU 28, the solenoid 26 is driven to release the lock of the ejector 18.

Next, the operation of this embodiment will be explained. First, when the disk 20 is not inserted into the FDD (unloaded state), the plate 18a of the ejector 18 is located toward the rear of the FDD, as shown in FIG. 3 (plan view). At this time,
As shown in FIG. 7 (side view), the receiver 14 is latched upward.

Next, when the disk 20 is inserted from the disk insertion slot 11 of the FDD, it is held by the receiver 14. By inserting the disk 20, the latch mechanism that latches the receiver 14 upward is released. At the same time, ejector 1
8 plate 18a is facing forward (front panel 12 side)
(in the direction of arrow 31 in FIG. 3). This results in
As shown in FIG. 8 (III), the receiver 14 is guided by the inclined hole 18b and moves downward,
0 will be loaded into the spindle hub of the spindle mechanism.

Here, as shown in FIG. 9, when the READY signal is output from the FDD to the CPU 28, the CPU 28 recognizes that the FDD is ready for read/write operations. When this READY signal is received, the CPU
2B outputs an eject lock signal I to the FDD. The solenoid drive circuit 27 drives the solenoid 26 in response to the lock signal I.

As a result, as shown in FIG. 5, the plunger 26a of the solenoid 26 moves to the right (arrow).

This operation of the solenoid 26 causes the locking member 22 to move to the third position.
From the state shown in the figure, it rotates around the rotation shaft 24 and moves to the position shown in FIG. 4. This locking member 22 allows the plate 18a of the ejector 18 to move rearward to the fourth position.
You will be prohibited from moving to (arrow in the figure) and will be locked. In this locked state, even if the eject button 13 is operated, the ejector 18 will not move, and the receiver 14 will not move upward. Therefore, even if the eject button 13 is operated, the disk 20 remains loaded and is not ejected from the FDD.

Next, when the FDD read/write operation is completed, the CP
U28 outputs a lock release signal R to the FDD. The solenoid drive circuit 27 returns the solenoid 26 to its original state in response to the lock release signal R.

That is, the plunger 26a of the solenoid 26 moves in the opposite direction of the arrow in FIG. 5 and presses the transmission bottle 23.

The transmission bottle 23 transmits the pressing force from the plunger 26a to the locking member 22, and the locking member 22 rotates in the direction of the arrow 30, as shown in FIG. 3, and becomes unlocked. Thereby, when the eject button 13 is operated, the plate 18a of the ejector 18 moves rearward. As the plate 18a moves, the receiver 14 moves upward as shown in FIG.
It becomes possible to eject from the DD.

In this way, with the disk loaded, the FDD
When the READY signal is output from the CPU 28, the ejector 18
is locked and movement is prohibited.

That is, when the FDD enters the drive start state (read/write operation start state including seek operation), the ejector 18 is locked and the disk cannot be ejected even if the eject button 13 is operated. Therefore, when a read/write operation is being performed on the disk,
Even if the eject button 13 is operated by mistake, the disc will not be ejected.

Also, when the read/write operation of the FDD is completed, the CP
In response to the lock release signal R from U2B, ejector 1
8 is unlocked. As a result, when the eject button 13 is operated, the ejector 18 is operated and the loaded disc is ejected.

In the embodiment, a case has been described in which the CPU 28 outputs the eject lock signal l in response to the READY signal from the FDD, but the present invention is not limited to this. For example, a configuration may be adopted in which a special signal instructing eject lock is output from the FDD to the CPU 2B using a manual switch or the like.

[Effects of the Invention] As detailed above, according to the present invention, the eject can be locked by the eject lock mechanism during the read/write operation of the FDD, and the lock can be released when the read/write operation is completed. Can be canceled. Therefore, it is possible to prevent the disc from being erroneously ejected while reading/writing is being performed on the loaded disc.

Therefore, it is possible to reliably prevent the recorded data on the disk from being destroyed due to malfunction of the ejector, and it is possible to always realize stable read/write operations.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a disk drive according to an embodiment of the present invention, the second cause is a perspective view showing the structure of an eject lock mechanism of the same embodiment, and FIGS. 3 and 4 are respectively the same embodiment. FIG. 5 is a front view for explaining the operation of the embodiment, FIG. 6 is an exploded perspective view for explaining the configuration of the embodiment, FIGS. 8th
The figures are a side view and a side view for explaining the operation of the same embodiment, respectively.
FIG. 9 is a block diagram for explaining the configuration of the same embodiment. 11...Disc insertion slot, 12...Front panel, 13...Eject button, 14...Receiver,
18... Ejector, 21... Eject lock mechanism, 22... Locking member, 23... Transmission bottle,
26... Solenoid, 21... Solenoid drive circuit. Applicant's agent Patent attorney Takehiko Suzue Figure 5 Z'/ Figure 9

Claims (1)

[Claims] In an eject mechanism of a floppy disk device that ejects a magnetic recording medium loaded into a disk drive, when the magnetic recording medium is held and the spindle mechanism side is facing downward, it moves up and down to eject the magnetic recording medium. a receiver that moves the magnetic recording medium downward when loading the recording medium; and an ejector that moves horizontally with respect to the operation of the receiver and moves the receiver downward when loading and upward when ejecting. , an ejector that locks and prohibits operation of the ejector during read/write operations of the disk drive after loading the magnetic recording medium, and releases the lock and enables the ejector during non-read/write operations; What is claimed is: 1. An eject mechanism for a floppy disk device, comprising lock control means.