JPH02146147A - Disk attaching/detaching mechanism for floppy disk device - Google Patents

Abstract

PURPOSE:To ensure the prevention of the inverse insertion of a magnetic recording medium and to stabilize the ejecting quantity of the magnetic recording medium by providing a locking mechanism, which consists of a locking member, an arm and an arm spring, on a receiver. CONSTITUTION:When a magnetic recording medium case is inversely inserted to a receiver 10, the oblique surface part of the case is not brought into contact with a lock arm axis 21b of a locking member 21, since the locking member 21 does not move, a corner part other than the oblique surface part of the magnetic recording medium case is brought into contact with a locking arm axis 21b, and the case cannot be loaded. When the magnetic recording medium case is ejected, the locking arm axis 21b is brought into contact with the side surface part of the magnetic recording medium case, and the ejecting quantity is suppressed by contact friction force. In such a case, since the locking member 21 linearly moves for a constant quantity, the ejecting quantity of the magnetic recording case is stabilized, and it can stop at an approximately constant position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a disk loading/unloading mechanism of a floppy disk device equipped with a receiver mechanism.

(Prior Art) Conventionally, for example, in a 3.5-inch floppy disk device, as shown in FIG. 15, a magnetic recording medium is held and chucked by a spindle mechanism (disk rotation mechanism), and when ejected, the magnetic recording medium is A receiver 10 is provided that constitutes a disk attachment/detachment mechanism for ejecting the disk. The receiver 10 falls toward the spindle mechanism when the medium case 11 containing the magnetic recording medium is inserted, and moves (raises) to the ejection position of the medium case 11 when ejecting the medium.
do. Here, the medium case 11 is usually made of plastic and includes a shutter Ilb in which a window Ila is formed for contact between the magnetic head and the magnetic recording medium.

When the medium case II is inserted into the receiver 10 in the normal direction, a shutter opener mechanism provided at a predetermined position 10a of the receiver IO causes the shutter llb to slide and release the magnetic recording medium and the magnetic head within the window lla. will come into contact with. As shown in FIG. 15, the magnetic head is configured to seek a predetermined range lob, which is a notch in the receiver 1°, in the radial direction (arrow A) of the magnetic recording medium.

By the way, as shown in FIG.
ie is formed in the shape of a slope with a predetermined angle. When the medium case 1 is inserted into the receiver 10 in the normal direction, the corner 10c of the receiver 1o is formed to match the shape of the corner 11c. As a result, when the medium case 11 is inserted in the opposite direction (that is, the direction with the shutter llb facing the back side), the medium case 11
1 and the corner 10c of the receiver 10 do not match, thereby preventing insertion.

(Problem to be Solved by the Invention) Conventionally, in a floppy disk device, the receiver 10
In the disk attachment/detachment mechanism having the above, the shapes of the medium case 11 and the receiver 10 that house the magnetic recording medium are utilized to prevent the magnetic recording medium from being inserted in the opposite direction. However, if there are variations in the machining accuracy of each shape of the medium case 11 and the receiver 10, a situation may occur in which the reverse insertion prevention does not function. Furthermore, there is also a drawback that, at the time of ejection, the amount of ejection of the medium case 11 from the receiver IO varies.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk loading/unloading mechanism for a floppy disk device that can reliably prevent reverse insertion of a magnetic recording medium and stabilize the ejection operation of the magnetic recording medium at the time of ejection.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention provides a disk loading/unloading mechanism of a floppy disk device equipped with a receiver, when a magnetic recording medium housed in a medium case is inserted into the receiver. If the media case is inserted in the wrong direction, it will come into contact with the corner of the media case to prevent it from being inserted, and the corner of the media case will touch the corner of the media case when ejecting after being inserted into the receiver in the normal direction. This is a mechanism that suppresses the amount of discharge from the receiver by contacting it, and includes a locking mechanism provided on the receiver.

Further, the present invention includes a locking member that is provided on the receiver and moves linearly within a predetermined range depending on the state of contact with the corner of the medium case inserted into or ejected from the receiver,
When the media case is inserted into the receiver in the opposite direction, the locking member comes into contact with the corner of the media case to prevent insertion, and when ejecting after inserting into the receiver in the normal direction, the locking member contacts the corner of the media case and prevents insertion. This mechanism includes a locking mechanism in which a locking member contacts a corner of a medium case at a position to suppress the amount of discharge from the receiver.

With such a configuration, it is possible to reliably prevent the magnetic recording medium from being inserted in the opposite direction without being greatly affected by the processing accuracy of the shape of the receiver or the like. Furthermore, it is possible to stabilize the amount of the magnetic recording medium ejected at the time of ejection.

(Example) The present invention will be described in detail below with reference to the drawings. FIGS. 1 and 7 are perspective views showing the configuration of, for example, a 3.5-inch floppy disk device according to a first embodiment of the present invention.

In the floppy disk device of the same embodiment, as shown in FIG.
0 is provided, and this receiver 10 and eject mechanism 13 constitute a disk attachment/detachment mechanism. As shown in FIG. 7 (a diagram in which the receiver 10 and the like are removed from the device shown in FIG. 1), the eject mechanism 13 consists of an eject plate 13a, and the receiver 10 is connected to the inclined part of the side surface 13b of the plate 13a. configured to engage.

By this operation of the eject mechanism 13, when a magnetic recording medium (housed in the medium case 11 shown in FIG. 15) is inserted into the receiver 10, the receiver 10 falls toward the spindle mechanism 14. As a result, the magnetic recording medium held in the receiver 10 is transferred to the spindle mechanism 14.
It will be chucked by. In this case, the eject plate 13a is inserted in the direction of the magnetic recording medium insertion slot (seventh direction).
(in the direction of arrow A shown in the figure).

On the other hand, when the eject button 15 shown in FIG. 1 is pressed, the eject plate 13a moves toward the back of the apparatus (in the direction of arrow B shown in FIG. 7). This eject mechanism 1
3, the receiver 10 moves upward away from the spindle mechanism 14. At this time, as shown in FIG. 1, the magnetic recording medium held in the receiver 10 is ejected by the shutter opener 16 that operates in conjunction with the eject mechanism 13.

Here, the carriage mechanism 17 moves in the radial direction of the magnetic recording medium chucked by the spindle mechanism 14, causing the mounted magnetic heads (SO and SL heads) to seek. Each magnetic head performs reading/writing while in contact with the magnetic recording medium. The carriage machine tRL7 is driven by a lead screw mechanism 19 using a stepping motor 18 as a driving source.

Further, in this embodiment, as shown in FIG. 1, a locking mechanism 20 is provided to prevent reverse insertion of the medium case 11 and to equalize the discharge amount of the medium case 11 at the time of ejection. The lock mechanism 20 includes a lock member 21, an arm 22, and an arm spring 23. As shown in FIG. 2, the locking member 21 has a long hole 21a,
It is configured to be movable linearly in the direction shown by arrow C using a shaft 24 attached to receiver 10 that engages with this elongated portion 21a as a guide. The lock member 21 has a lock arm shaft 21b at its tip, and the lock arm shaft 21b is always pulled toward the side surface of the receiver IO by an arm spring 23. Further, the lock member 21 is connected to a presser member 2 attached to the receiver 10.
5 prevents it from rising.

As shown in FIG. 3, the arm 22 is provided rotatably (arrow D) around an arm rotating ring 22a provided on the receiver 10, and is always rotated in one direction by a spring 26 attached to the receiver 10. are attracted to. The arm 22 includes an arm guide 27, and the arm guide 27 moves the locking member 2I in one direction by rotational movement. The arm 22 is rotated in the other direction by a spring 26, but is stopped at a predetermined position by a stopper 28. The am 22 is engaged with the shutter opener 16. The shutter opener 16 rotates around the rotation axis 1 (arrow E), opens the shutter llb of the medium case 11, and discharges the medium case 11 during ejection. shutter opener 16
is always pulled in one direction by the spring 18b.

Next, the operation of the first embodiment will be explained. First, as shown in FIG. 1, a medium case 11 containing a magnetic recording medium is opened.
Suppose that the receiver 10 is inserted into the receiver 10.

That is, as shown in FIG.
It becomes like being pushed in the direction of.

In this case, when the medium case 11 is inserted in the normal direction, as shown in FIG.
The first lock arm shaft 21b comes into contact with the second lock arm shaft 21b. Further, when the medium case 11 is pushed in, the lock member 21 is guided through the elongated hole 21b and linearly moved so that the lock arm shaft 21b moves along the sloped portion 11c, as shown in FIG. Move (to the right of arrow C in Figure 3). Thereby, the medium case 11 can be moved in the rearward direction (in the direction of the carriage mechanism 17 in FIG. 1) while being held by the receiver 10 while the lock arm shaft 21b is in contact with the side surface.

Here, the medium case 11 is moved in the opposite direction (shutter 11b
When inserted into the receiver 10 with the side facing backward), the slope portion lie does not come into contact with the lock arm shaft 21b of the lock member 21. That is, the corner portions of the medium case 11 other than the slope portion lie come into contact with the lock arm shaft 21b, and this lock arm shaft 21b acts as a so-called stopper. Therefore, the medium case 11 inserted in the opposite direction is stopped from being inserted by the lock arm shaft 21b, and becomes unable to be mounted. In this way, the locking member 21
This functions as a reverse insertion prevention mechanism for the medium case 11.

On the other hand, the medium case 11 inserted in the normal direction moves toward the back while being held by the receiver 1O, as described above, and comes into contact with the shutter opener 1B, as shown in FIG. As shown in FIG. 3, the shutter opener 1B rotates around the rotation axis lea (in the upward direction of arrow E).
, the shutter llb of the medium case 11 is opened (arrow F in FIG. 6).

In conjunction with this rotational movement of the shutter opener 16, the arm 22 rotates to the stopper 28 position (to the left of the arrow) due to the action of the spring 26. The arm 22 is disengaged from the shutter opener 16 and stopped at the stopper 28 position. The rotational movement of the arm 22 moves the locking member 21 through the arm guide 27 in the direction of arrow C.
will be moved to the right. As a result, the lock arm shaft 21b is separated from the side surface of the medium case 11 held by the receiver 10.

Here, when the medium case 11 is completely inserted, the receiver 10 falls toward the spindle mechanism 14 due to the operation of the eject mechanism 13. This allows receiver 1
The magnetic recording medium in the medium case 11 held at zero is chucked by the spindle mechanism 14. In this case, the shutter opener 16 is latched by a latch mechanism (not shown) in a position where the shutter Ilb is opened.

Next, when the eject button 15 in FIG. 1 is operated,
This is an ejection operation of the magnetic recording medium (that is, the medium case 11). In this ejection operation, the shutter opener 16 is unlatched by the operation of the eject mechanism 13, and the shutter opener 1B rotates in the downward direction of the arrow E and attempts to return to its original position. At this time, the receiver 10 moves upward away from the spindle mechanism 14 in conjunction with the eject mechanism 13. The shutter opener 18 closes the shutter llb of the medium case 11 while pushing out the medium case 11 from the receiver 10 in the direction of the insertion port (arrow A in FIG. 7).

By the way, when the shutter opener IB rotates to its original position, it contacts the arm 22 and pushes the arm 22 into the stopper 2.
Rotate it in the direction away from 8 (to the right of the arrow). In conjunction with this rotational movement of the arm 22, the arm guide 27
is separated from the locking member 21. As a result, the locking member 21 is moved in the direction in which it is attracted by the arm spring 23 (
move linearly in the left direction of arrow C). Therefore, the lock arm shaft 21b comes into contact with the side surface of the medium case 11.

In this way, when the magnetic recording medium is ejected, the lock arm shaft 21 is attached to the side surface of the medium case 11.
b will be in contact with each other. For this reason, lock arm shaft 2
The amount of discharge of the medium case 11 is suppressed by the contact friction force with the medium case 1b. In this case, since the locking member 21 moves linearly by a substantially constant amount, the media case 1
1 is stable, and the medium case 11 can be stopped at a substantially constant position.

FIG. 8 is a perspective view showing the configuration of a floppy disk device according to a second embodiment of the present invention. In the second embodiment, a lock arm 30 formed in a substantially V-shape is used as the lock mechanism 20. This lock arm 3
0, as shown in FIG. 9 (plan view), the -man end 30a is fixed at a predetermined position of the receiver 10, and the other end 30a is fixed at a predetermined position of the receiver 10.
0b is engaged with a notch near the side surface of the receiver 10. The tip of the other end 30b is connected to a spindle mechanism (seventh
It is bent downward at a substantially right angle, which is the direction 14) in the figure.

Assume that the medium case 11 is inserted in the normal direction as shown in FIG. 13 into a floppy disk device having such a locking mechanism. In this case, the 10th
As shown in the figure, when the medium case 11 containing a magnetic recording medium is inserted into the receiver 10, the medium case 11
The slope portion 11c contacts the other end 30b of the lock arm 30. Due to the pushing force of the medium case 11, the other end 30b of the lock arm 30 slides in the direction of arrow G, and comes into contact with the side surface of the medium case 11 from the slope portion 11c. In this case, the lock arm 30 is pulled in the opposite direction by the arm spring 23.

On the other hand, as shown in FIG.
1 is inserted in the opposite direction (with the shutter llb on the back side), the slope portion lie will be located on the opposite side from the lock arm 30. Or, as shown in Figure 11,
Although the shutter llb is on the front side, the slope portion 11c is located on the opposite side from the lock arm 30. In any case, as shown in FIG. 11, when the medium case 11 is inserted into the receiver 10, the corners of the medium case 11 other than the slope portion lie contact the other end 30b of the lock arm 30, and (arrow B). For this reason,
The lock arm 30 comes into contact with the vicinity of the side surface of the receiver 10 and comes to a stopped state, and as a result, the medium case 11
It acts to prevent the insertion of. That is, Rock Am 3
0 acts as a reverse insertion prevention mechanism to stop the medium case 11 inserted in the opposite direction.

Next, when the medium case 11 is inserted into the receiver 10 in the normal direction, as in the case of the first embodiment,
The shutter 11b is opened by the shutter opener 16, and the magnetic recording medium housed in the medium case 11 is chucked by the spindle mechanism. When transitioning from this state to the eject operation, the 12th
As shown in the figure, the medium case 11 held by the receiver IO is in contact with the other end 30b of the lock arm 30 at its side surface. That is, the lock arm 30 is attracted by the arm spring 23, and a force is applied to move the lock arm 30 in the direction of arrow H. Therefore, when the medium case 11 is ejected by the eject operation, the medium case 11 is pressed against the side surface foe of the receiver 10 in the direction opposite to the lock arm 30.

Therefore, due to the frictional force of contact between the medium case 11 and the side surface portion 10c of the receiver 10, the discharge amount at the time of ejection is suppressed.

In the second embodiment, the structure other than the locking mechanism is the same as that shown in FIGS. 1 and 7, and the effects associated therewith are also the same, so a description thereof will be omitted.

[Effects of the Invention] As detailed above, according to the present invention, by providing a locking mechanism in a floppy disk device having a receiver, it is possible to reduce the influence of variations in the machining accuracy of each shape of the receiver and the medium case. Therefore, it is possible to reliably prevent the magnetic recording medium from being inserted backwards.

Furthermore, when the medium case is ejected from the receiver, the stable contact friction force with the locking mechanism makes it possible to suppress the amount of ejection to a substantially constant level. Therefore, it is possible to prevent the magnetic recording medium from flying out too much from the apparatus during ejection, and to always achieve stable ejection operation.

[Brief explanation of the drawing]

1 and 7 are respectively a perspective view showing the configuration of a floppy disk device according to a first embodiment of the present invention, and a second embodiment of the present invention.
The figure is a perspective view showing the structure of the locking mechanism of the same embodiment, FIGS. 3 to 6 are partial plan views for explaining the operation of the same embodiment, and FIGS. 8, 13, and 14 respectively. 9 to 12 are respectively partial plan views for explaining the operation of the second embodiment, and FIG. The figure is a plan view showing the configuration of a conventional receiver and medium case. IO...Receiver, ll...Medium case, 21.
...Lock member, 22... Arm, 30... Lock arm.

Claims (2)

[Claims] (1) A receiver that moves toward the spindle mechanism while holding the magnetic recording medium during chucking and moves to the ejection position of the magnetic recording medium during ejection, and a receiver that stores the magnetic recording medium and inserts it into the receiver in the normal direction. a medium case formed such that the corner shape when inserting the medium is different from the corner shape when inserting the medium in the opposite direction; and the magnetic recording medium housed in the medium case is inserted into the receiver. If the media case is inserted in the opposite direction, the media case contacts the corner of the media case to prevent its insertion, and when ejected after being inserted into the receiver in the normal direction, the media case is inserted in the wrong direction. 1. A disk attachment/detachment mechanism for a floppy disk device, comprising: a locking mechanism provided on the receiver that contacts a corner of a case to suppress the amount of discharge from the receiver. (2) A receiver that moves toward the spindle mechanism while holding the magnetic recording medium during chucking and moves to the ejection position of the magnetic recording medium during ejection; and a receiver that stores the magnetic recording medium and inserts it into the receiver in the normal direction. a medium case formed such that a corner shape when inserting the medium is different from a corner shape when inserting in the opposite direction; and a medium case provided on the receiver and inserted into or ejected from the receiver. a locking member that linearly moves within a predetermined range depending on the state of contact with the corner of the medium case, and when the medium case is inserted into the receiver in the opposite direction, the corner of the medium case The locking member comes into contact with the media case to prevent its insertion, and when ejected after being inserted into the receiver in the normal direction, the locking member contacts a corner of the medium case at a predetermined position to prevent the receiver from being inserted. 1. A disk attachment/detachment mechanism for a floppy disk device, characterized in that it is equipped with a locking mechanism for suppressing the amount of discharge from the floppy disk device.