JP2816785B2 - Opening / closing device for recording medium insertion port in recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for a recording medium insertion slot used for a recording / reproducing apparatus using a magnetic disk, an optical disk, or the like as a recording medium.

[0002]

2. Description of the Related Art Recording / reproducing apparatuses using a disk as a recording medium are widely used in personal computers, word processors and other electronic still cameras.

For example, an electronic still camera includes a floppy disk drive (hereinafter, referred to as an FDD) that records images using a floppy disk as a magnetic recording medium.

In this FDD device, a disk ejecting mechanism is operated by inserting a floppy disk from an insertion slot, and the inserted floppy disk is pulled into the device and automatically stored in a recording / reproducing position. It has become.

More specifically, when a floppy disk is rotatably mounted in a disk pack and stored in a recording / reproducing position, a center core of the disk is provided on a spindle motor shaft. The shutter is provided on the disk pack, and a shutter provided on the disk pack is opened. The magnetic head enters from the shutter and comes into contact with the floppy disk surface.

When ejecting a floppy disk,
Manually operate the eject mechanism. Than this,
The floppy disk is sent out until it partially protrudes from the insertion slot. Therefore, the floppy disk can be pulled out of the FDD device by hand.

On the other hand, the above-mentioned FDD device is provided with a door plate whose opening can be freely opened and closed in order to prevent dust or the like from entering the device through the insertion opening.

The door plate is a horizontally long plate-like plate rotatably supported directly above the inside of the insertion opening, and has a structure in which a spring force for constantly closing the insertion opening is given by a spring force.

When a floppy disk is inserted into the insertion slot, the floppy disk pushes away the door plate and advances, so that the door plate turns against the spring force and the free end of the door plate is moved to the floppy disk (disk). (Pack). Until the floppy disk is ejected, the door plate is pivoted as described above, and the insertion port remains open.

As a result, in such a door plate, the insertion opening is closed in a normal state, but the insertion opening is opened while the floppy disk is inserted, so that entry of dust or the like cannot be prevented.

In order to solve this problem, a disk recording / reproducing apparatus having a shutter plate for opening and closing an insertion port in addition to a door plate has already been developed. (For example, Japanese Utility Model Application No. 1-109)
No. 843)

This disk recording / reproducing apparatus has a door plate similar to the above and a shutter plate sliding in a direction parallel to the inner surface on the inner surface of the device front plate provided with the insertion opening.

Further, two horizontally long interlocking levers are symmetrically supported on the left and right sides on the inner surface side of the front plate. The two interlocking levers are both pivotally supported at the middle, are provided with a spring force in which their outer ends are lowered, and their inner ends at the ascending position are in contact with the floppy disk. It has become.

The left and right sides of the shutter plate are locked to the outer ends of each of the two interlocking levers. Under normal conditions, the shutter plate slides downward to open the insertion opening. At this time, the insertion port is closed by the door plate.

When the floppy disk is inserted into the insertion slot, the door plate is pushed out as described above, and the floppy disk advances. When the floppy disk is set to the recording / reproducing position by the disk ejecting mechanism, the inner ends of the two interlocking levers are pushed down by the floppy disk, and each interlocking lever opposes the spring force. Turn.

That is, the outer end of each of the interlocking levers rises to slide the shutter plate upward to close the insertion opening. At this time, the door plate is pushed away by the floppy disk to open the insertion opening as described above.

When the floppy disk is ejected,
The two interlocking levers rotate under the spring force and slide the shutter plate downward to open the insertion opening. Floppy
When the disk is pulled out from the disk recording / reproducing apparatus, the door plate turns by the spring force to close the insertion opening.

As described above, according to this disk recording / reproducing apparatus, the insertion opening is closed by the door plate during normal operation, and by the shutter plate when the floppy disk is stored, so that dust or the like from the insertion opening is closed. Intrusion can be prevented.

[0019]

In the above-described conventional disk recording / reproducing apparatus, the insertion opening is closed between a normal state where no floppy disk is inserted and a recording / reproducing state where the floppy disk is stored. It is extremely excellent as a dustproof means.

However, since the two interlocking levers are rotated by the spring force to open the shutter plate at all times, the two interlocking levers are set when the floppy disk is set at the recording / reproducing position. The inner end of each of these levers must be lowered with a force that overcomes the negative spring force.

In other words, the floppy disk set at the recording / reproducing position is pushed in a direction away from the turntable under the restoring force of the two interlocking levers, and when the floppy disk is loaded, Mounting becomes unstable.

The floppy disk housed in the recording / reproducing position is securely mounted on the turntable by a spring force means.
When receiving a pressing force in the non-mounting direction by the two interlocking levers, it is necessary to mount the lever with spring force means that can overcome this pressing force.

However, if the spring biasing means of the floppy disk is strengthened in this way, a stronger force is required when ejecting the floppy disk than the spring biasing means, which is not preferable in operation.

In view of the above-mentioned circumstances, the present invention provides a recording / reproducing apparatus having a door plate at an insertion slot, wherein a shutter plate for closing the insertion slot irrespective of the recording medium when the recording medium is stored is provided. The purpose is to develop an opening and closing device for the insertion port.

[0025]

In order to achieve the above-mentioned object, according to the present invention, a holder for supporting a recording medium inserted from an insertion slot is moved while connecting the holder, and the recording medium is moved to a recording / reproducing position. A recording / reproducing apparatus having a slide plate to be housed and ejected from this position, a door plate pivotally supported and provided with a turning force to normally close the above-mentioned insertion opening, and a recording medium A shutter plate that is slidable in a direction perpendicular to the insertion direction of the shutter plate, closes the above-mentioned insertion opening at the advanced sliding position, and opens the insertion opening at the retracted sliding position; and a shutter plate. An interlocking member having a protruding portion inserted into the oblique hole is included, and the interlocking member is moved in one direction in conjunction with the end of the movement of the slide plate in the storage direction to advance the shutter plate, and the interlocking member is moved. The above slur In conjunction with the movement the initial discharge direction of de plate varied in the other direction to propose a closing device for a recording medium insertion slot, characterized by being configured more a shutter plate drive mechanism to retract the shutter plate.

[0026]

In the above-mentioned insertion opening / closing device, in a normal state in which the recording medium is not inserted, the door plate closes the insertion opening to prevent intrusion of dust and the like. In this state,
The shutter plate is retracted so as to open the insertion port.

When a recording medium is inserted into the insertion slot, the door plate is pushed back to open the insertion slot. Thereafter, the recording medium is pulled in by the slide plate moving in the recording medium insertion direction, and the interlocking member is interlocked and moves in one direction at the end of the movement of the slide plate.

[0028] For this reason, the projecting portion of the interlocking member slides along the edge of the oblique hole of the shutter plate and moves in one direction, so that the shutter plate advances so as to close the insertion port, and closes the insertion port. I do. Therefore, intrusion of dust and the like is prevented even when the recording medium is stored.

When the recording medium is ejected, the interlocking member is interlocked at the initial stage of the movement of the slide plate in the ejection direction, and the interlocking member is displaced in the other direction. Therefore, the protruding portion of the interlocking member slides along the edge of the oblique hole of the shutter plate and advances in the other direction, so that the shutter plate retreats so as to open the insertion port and opens the insertion port.

Thereafter, the recording medium is discharged by the movement of the slide plate in the discharge direction, and the recording medium is taken out of the recording / reproducing apparatus, whereby the insertion opening is closed by the door plate.

[0031]

Next, an example in which the insertion opening / closing device of the present invention is applied to an FDD device of an electronic still camera will be described with reference to the drawings. FIG. 1 is a simplified bottom view of the FDD device, and FIG.
FIG. 2 is a simplified enlarged side view of the FDD device.

In these figures, reference numeral 11 denotes an apparatus frame, which is formed in a shallow box shape which is enclosed along the periphery of the bottom plate 11c. A notch 11d substantially at the center of the bottom plate 11c has a turntable fixed to the spindle motor shaft.
The inside of the bull 12 is provided, and another notch hole 11e provided on the side of the notch hole 11d is for moving a magnetic head (not shown).

In the apparatus frame 11, a holder 13 for holding the floppy disk and a slide plate 14 for moving the holder 13 are provided as a mechanism for storing and ejecting the floppy disk. As shown in FIG. 2, the pins 13a and 13b provided on the side surface of the holder 13 have oblique holes 14a and 14b provided on the side plate of the slide plate 14 and the L-shaped holes 11a provided on the side plate of the apparatus frame 11. , 11b.

In such a configuration, if the slide plate 14 is moved to the left in FIG. 2 after holding the floppy disk in the holder 13, the pins 13a and 13b
Since the holder 13 moves along the holes 11a and 11b, the holder 13 once moves leftward (rearward), and then moves downward.
Turn the center core of the floppy disk into a turntable 1
Attach to 2.

When the slide plate 14 is moved rightward in FIG. 2 with the floppy disk housed in this manner, the pins 13a and 13b
Since the holder 13 moves upward through the holes 11a and 11b once, it moves rightward after the holder 13 once rises, and ejects the floppy disk.

The holder 13 is also provided with one pin on the side opposite to the side shown in FIG. 2 so that the slanted hole of the slide plate and the L-shaped It pierces the hole.

The above-mentioned slide plate 14 has its upright portion 1
A moving force is applied rearward (to the left in the drawing) by a coil spring 15 having a compressive action provided between the spring member 4c and the spring stopper 11f of the apparatus frame body 11, but a normal floppy disk is not stored. In the state, as shown in the drawing, the lock is performed at the position moved forward (to the right in the drawing).

That is, the locking portion 14d is connected to the lock lever 16
The slide plate 14 is locked at the forward movement position. The lock lever 16 is supported on the apparatus frame 11 by a support shaft 17, and the eject lever is
A turning force in a counterclockwise direction (FIG. 1) is given by a spring force via an interlocking portion 18a integral with the motor 18.

An interlocking piece 18a integral with the eject lever 18 is inserted into a forked portion formed on the other arm 16b of the lock lever 16, and the eject lever 18 is pushed by inserting a floppy disk. By doing
Lock lever -1 pushed around by interlocking piece 18a
6 rotates clockwise (FIG. 1) to release the lock of the slide plate 14.

The eject lever 18 is supported on the apparatus frame 11 by a support shaft 17 and is provided with a turning force in a counterclockwise direction (FIG. 1) by a spring force. It is extended so that it may contact.

When the inserted floppy disk advances while pushing the eject lever 18, the lock of the slide plate 14 is released as described above. The portion 19 (FIG. 2) locks the floppy disk and is held by the holder 13.

On the other hand, a front plate 20 shown in FIG. 3 is fixed to the front side of the apparatus frame 11. An insertion port 21 is formed in the front plate 20, and a door plate 22 similar to the conventional example for closing the insertion port 21 is provided.

As can be seen from the enlarged partial cross-sectional views of FIGS. 3 and 4, the door plate 22 is axially mounted directly above the insertion opening 21 by a shaft 23 extending between the left and right side plates of the front plate 20. is there. The shaft 23 is bent downward near both ends, is lowered by one step from the shaft, and abuts against the door plate 22 as a lateral stretch. The spring force provided on a part of the shaft 23 is
, And the door plate 22 closes the insertion opening 21 as shown in FIG.

A shutter plate 24 is provided between the front plate 20 and the apparatus frame 11, and the shutter plate 24 is
The opening 21 is opened and closed by sliding up and down along the inner surface of the slot.

As can be seen from FIG. 3, the shutter plate 24 is provided with oblique holes 24a and 24b, and the projections 25a and 25b of the interlocking lever 25 project into these oblique holes 24a and 24b. The front plate 20 has relief holes 20a and 20b for the protruding portions 25a and 25b.

As can be seen from FIG. 1, the interlocking lever 25 is a plate-like lever having elongated guide holes 25c and 25d on both sides and an elongated interlocking hole 25e in the middle thereof. Guide holes 25a and 26b
The lever 25 moves in the left-right direction outside the bottom plate 11c of the apparatus frame 11 by protruding into the c and 25d. In practice, an E-ring or the like is fitted to the projections 26a and 26b to prevent the interlock lever 25 from being removed.

Further, the interlocking lever 25 is driven by a turning lever 28 which is supported by the support frame 27 on the apparatus frame 11 and moves. That is, the interlocking pin 28a of the revolving lever 28 projects into the interlocking hole 25e of the interlocking lever 25, and when the revolving lever 28 turns counterclockwise in FIG. ), The turning lever 28 turns clockwise, and the interlocking lever 25 moves downward.

The revolving lever 28 has a pair of opposing claws 28b and 28c near the shaft support.
8c is pushed by the standing piece 14e of the slide plate 14.

That is, the slide plate 14 is moved backward (FIG. 1).
When moving in the upper left direction), the standing piece 14e pushes the opposing claw 28b at the end of the movement to turn the lever-2.
8 is turned counterclockwise (FIG. 1). When the slide plate 14 moves forward (rightward in FIG. 1), the upright piece 14e pushes the opposing claw 28c in the initial stage of the movement to move the turning lever 28 clockwise (FIG. 1). Turn.

The upright piece 14e protrudes from an elongated notch 11g formed in the bottom plate 11c of the apparatus frame 11. In this embodiment, a similar standing piece 14f is projected from the cutout hole 11h of the bottom plate 11c, but the standing piece 14f is not always necessary.

Next, the operation of storing and ejecting a floppy disk in the above-mentioned FDD device will be described. In a normal state where the floppy disk is not inserted, the insertion port 21 is inserted into the door plate 2 as shown in FIGS.
2 closed. Further, since the slide plate 14 is locked at the position where it has moved forward, the interlocking lever 25 moves in one direction as shown in FIG.
The shutter plate 24 slides downward to open the insertion port 21.

When the floppy disk is inserted from the insertion slot 21, the door plate 22 is pushed back and the floppy disk advances, and the free end side of the door plate 22 is placed on the floppy disk (disk pack) 29 as shown in FIG. It comes into contact with the surface.

When the floppy disk 29 is further pushed in, the holder 13 is held when the rear end in the insertion direction reaches just before the insertion slot 21, and the lock lever 16 unlocks the slide plate 14 immediately thereafter.

Accordingly, the slide plate 14 moves rearward under the compression pressure of the coil spring 15, and the holder 13 is pulled rearward while holding the floppy disk 29. When the rearward movement of the slide plate 14 reaches the end, the upstanding piece 14e hits the opposing claw 28b, and pushes the turning lever 28 counterclockwise in FIG.

Since the interlocking lever 25 moves in the other direction (upward in FIG. 1) as shown in FIG.
The protruding portions 25a and 25b advance while sliding along the edges of the oblique holes 24a and 24b provided in the shutter plate 24, and push up the shutter plate 24 as shown in FIG. As a result, the insertion port 21 is closed by the shutter plate 24.

When the rearward movement of the slide plate 14 is completed, the holder 13 descends together with the floppy disk 29 as described above, and stores the floppy disk 29 at the recording / reproducing position. (See Fig. 8)

When ejecting the floppy disk 29, the slide plate 14 is manually moved forward.
Actually, an operation button is provided on the projection 30 shown in FIG. 2, and the operation button is manually operated.

In the initial stage of the movement of the slide plate 14 in the forward direction, the upstanding piece 14e abuts against the opposing claw 28c, the turning lever 28 is pushed clockwise in FIG. 6, and the interlocking lever 25 is shown in FIG. Move from the position to the position shown in FIG. As a result, the shutter plate 24 interlocked by the protruding portions 25a and 25b slides downward to open the insertion port 21.

By moving the slide plate 14 in the forward direction,
The holder 13 moves forward while holding the floppy disk 29, and the holder 13 moves the floppy disk 2.
9 is released. Therefore, the floppy disk 29 is pushed out by the turning force of the eject lever 18 (spring force in the discharging direction), the distal end of the floppy disk 29 protrudes from the insertion port 21, and the slide plate 14 is locked by the lock lever 16. You. And floppy
When the disc 29 is pulled out from the insertion slot 21 by finger,
The door plate 22 turns by the spring force to close the insertion port 21.

Although an example has been described in which the present invention is applied to an FDD device of an electronic still camera, the present invention can be applied to other recording / reproducing devices in the same manner.

[0061]

As described above, according to the opening / closing device according to the present invention, the insertion opening is closed not only during normal times but also when a recording medium is stored, and further, the closing operation of the shutter plate is performed. Since there is no effect on the stored recording medium, the setting of the recording medium does not become unstable.

Further, the opening / closing timing of the shutter plate can be freely set only by changing the inclination angle of the oblique hole provided in the shutter plate, and the shutter plate and its driving mechanism can be incorporated into a single unit. Thus, the opening and closing device is advantageous for downsizing the recording and reproducing device.

[Brief description of the drawings]

FIG. 1 is a simplified bottom view of an FDD device embodying the present invention.

FIG. 2 is a simplified enlarged side view of the FDD device.

FIG. 3 is an enlarged front view showing a front plate of the FDD device.

FIG. 4 is a partially enlarged sectional view of the FDD device.

FIG. 5 is a sectional view similar to FIG. 4, showing a process of inserting a floppy disk;

FIG. 6 is a partially enlarged bottom view of the FDD device showing a closing operation of a shutter plate.

FIG. 7 is a front view of the front plate of the FDD device showing a closing operation of the shutter plate.

FIG. 8 is a sectional view similar to FIG. 4, showing a stored state of the floppy disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Device frame 11g Notch hole 13 Holder 14 Slide plate 14e Standing piece part 15 Coil spring 20 Front plate 20a, 20b Escape hole 21 Insertion port 22 Door plate 24 Shutter plate 24a, 24b Slanted hole 25 Interlock lever 25a, 25b Projection Shaped part 28 Swivel lever 28b, 28c Opposing claw 29 Floppy disk

Claims (1)

(57) [Claims] 1. A recording apparatus comprising: a holder for supporting a recording medium inserted from an insertion slot; and a slide plate which moves while connecting the holder, stores the recording medium in a recording / reproducing position, and discharges the recording medium from this position. In the reproducing apparatus, a door plate which is pivotally supported so as to pivotally apply a urging force so as to close the above-described insertion opening in a normal state, and is slidable in a direction orthogonal to a recording medium insertion direction and advanced. Including a shutter plate that closes the above-described insertion port at the sliding position and opens the insertion port at the retracted sliding position, and an interlocking member having a protruding portion that is inserted into the oblique hole provided in the shutter plate. The interlocking member is moved in one direction in conjunction with the end of the movement of the slide plate in the storage direction to advance the shutter plate, and the interlocking member is moved in the other direction in conjunction with the initial movement of the slide plate in the discharge direction. Fluctuate An opening and closing device for a recording medium insertion opening, comprising a shutter plate driving mechanism for retreating a shutter plate.