JP2936822B2 - Cassette attachment / detachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette attaching / detaching device for attaching / detaching a disk cassette containing a disk to / from a disk table or the like, such as a floppy disk drive (FDD).

[0002]

2. Description of the Related Art A cassette attaching / detaching device is, for example, as shown in FIG.

[0005] That is, a recording / reproducing head 32 is provided at the rear center of the chassis 31. The recording / playback head 32
It is composed of a pair of an upper part 32a and a lower part 32b, and performs recording and reproduction on the upper and lower surfaces of the floppy disk, respectively. The recording / reproducing head 32 includes a holding plate 36.
The needle (not shown) fixed to the recording / reproducing head 32 is provided so as to be movable along a guide shaft 33 fixed to the chassis 31 by a lead. It is moved by being screwed into the screw shaft 34a. Next, a lever 37 is rotatably provided at the rear right side inside the chassis 31 and is urged in a counterclockwise rotation direction. Lever 3
Reference numeral 7 denotes a trigger mechanism including a stopper portion 37a and an eject pin 37b. Also disk table 3
8 is rotatably attached to the front of the chassis 31;
It is rotationally driven by a disk drive motor (not shown).

[0004] At the front end of the chassis 31, a front panel 39 in which a disk cassette insertion port 39a is formed is fixed.

[0005] Next, a slide plate 41 is provided in the chassis so as to be slidable in the cassette insertion and ejection directions.
The other end of a pair of springs 42, one end of which is attached to the lock portion 31a, is locked by the locking portion 31a of the chassis 31, and is urged in the cassette discharge direction. Next, two inclined grooves 41b are provided in each of the left and right bent portions 41a. Next, the locked piece locked by the stopper portion 37a of the lever 37 is
The slide plate 41 is formed on the lower surface of the right rear portion of the slide plate 41 (not shown), and the stopper plate 37a engages with the locked piece, so that the slide plate 41 is opposed to the spring 42 in the cassette insertion direction. It keeps its position when slid.

The eject button 43 is attached to the slide plate 41 so as to protrude from the front end of the slide plate 41. The eject button 43 is exposed to the outside of the front panel 39 through the button groove 39b of the front panel 39. ing.

Next, the cassette holder 44 has guide rollers 44a provided on both side surfaces thereof fitted into vertical guide portions 31b provided on the chassis 31, and two outer portions provided on both side surfaces thereof. The protrusion 44 b is provided on the chassis 31 by fitting the protrusion 44 b into the inclined groove 41 b of the slide plate 41. Cassette holder 44
A push-up piece 44c is provided at a rear portion of the recording / reproducing head 32a so that the upper recording / reproducing head 32a is lifted up when the cassette holder 44 is in an up state. . Next, a shutter arm 46 is provided at a position on the rear right side inside the cassette holder 44 so as to urge the shutter arm 46 in a counterclockwise direction.
When a disk cassette (not shown) is inserted into 4,
The pin 46a at the tip of the shutter arm 46 abuts on the right edge of the shutter of the disc cassette, and when the disc cassette is further inserted, the pin 46a moves while pushing the shutter in the horizontal direction, thereby sliding the shutter. Open.

The printed circuit board 47 is mounted on the chassis 31
, And the whole is covered with a cover 48 to constitute a cassette attaching / detaching device.

Therefore, when the floppy disk cassette is inserted through the insertion opening 39a of the front panel, it is inserted into the cassette holder 44, the pin 46a at the tip of the shutter arm contacts the right edge of the shutter, and when the disk cassette is further inserted into the back. The shutter is opened, and the right end of the disc cassette contacts the eject pin 37b of the lever 37 and pushes the eject pin 37b. As a result, the stopper portion 37a of the lever 37 is disengaged from the locked piece of the slide plate 41. By the urging force of the spring 42
The eject button 43 protrudes forward, and projects farther than the front surface of the front panel 39. And guide roller 4
Since 4a is fitted into the vertical guide portion 31b, when the inclined groove 41b projects forward in a state fitted with the projection portion 44b, the cassette holder 44 is lowered vertically. As a result, the lower surface of the floppy disk main body exposed from the cassette case by opening the shutter comes into contact with the lower recording / reproducing head 32b. It descends and contacts the upper surface of the floppy disk body. Since then
The disk table 38 is rotated by a disk drive motor (not shown), and the recording / reproducing head 32 is
The recording and reproduction are performed at predetermined positions on the upper surface and the lower surface of the floppy disk by being moved by the drive of No. 4.

When ejecting the disc cassette, when the eject button 43 is pressed, the slide plate 41 is retracted, and the disc cassette 44 is raised by the engagement between the projection 44b and the inclined groove 41b.
When the locked piece moves beyond the position of the stopper portion 37a of the lever 37, the lever 37 urged by the spring rotates counterclockwise to engage the stopper portion 37a and the locked piece at the same time. The ejecting pin 37b abuts on the right side of the front end of the disc cassette by the rotational urging force of the lever 37, and pushes the disc cassette forward, whereby the disc cassette can be taken out.

FIG. 4 shows an example of a cassette attaching / detaching device. There are various configurations of the cassette attaching / detaching device, and most of them have a chassis (a) and a disk cassette (b) inserted in the cassette inserting direction. A cassette holder provided on the chassis, which can be moved vertically to reach the loading position; and (c) slidably provided in the cassette insertion direction and slid in the cassette insertion direction to load the disk table. And a slide plate provided on a chassis for detaching the cassette holder from the loading position. Since there are various structures in a mechanism for opening the shutter of the disk cassette, a mechanism for moving the cassette holder in a direction perpendicular to the cassette insertion direction to reach the loading position, and the like, various cassette attaching / detaching devices exist. Example;
JP-A-1-199359, JP-A-1-26066
No. 4).

Conventionally, the structures of the front panel and the slide plate have been described above.
(The front panel and the slide plate in FIG. 3 are shown in different shapes from those in FIG. 4), that is, a front panel 49 made of synthetic resin or the like.
Has a disk cassette insertion slot 49a and a button groove 49b, and are fixed to the front surface of the chassis (the chassis is not shown in FIG. 3). Then, the slide plate 51 has a part of the front end protruding, and an eject button 53 having a certain thickness made of, for example, a synthetic resin is fitted into this part, and the eject button 53 is pushed forward of the front panel 49 through the button groove 49b. It was protruding. At the time of eject, the eject button 53 is pressed on the front panel 4.
The slide plate 51 is slid in the cassette insertion direction by pressing the slide plate 51 from the outside of the cassette 9 in the cassette insertion direction.

[0013]

However, in the case where the cassette attaching / detaching device is made thinner, the extra space other than the cassette insertion slot on the front panel is reduced.
Therefore, the button groove must be provided near the cassette insertion slot or the like, so that the position of the eject button is close to the position of the cassette insertion slot, and when the eject button is pressed with a finger, the finger is ejected. There is a problem that it is difficult to eject the disk cassette when trying to hit the disk cassette.

Also, if an attempt is made to press the eject button with a finger so as not to hit the disk cassette to be ejected, the eject button cannot be pressed at the center of the finger, making it difficult to press, and the pressing force required for the ejection is reduced. There was a problem that it was difficult to obtain.

An object of the present invention is to provide a cassette attaching / detaching apparatus which can easily slide a slide plate to eject a disk cassette even when the cassette attaching / detaching apparatus is thinned.

[0016]

In order to achieve the above object, a cassette mounting / dismounting device according to the present invention is provided on a chassis and mounted on the chassis, and can be mounted at a loading position by moving in a direction perpendicular to a cassette insertion direction. Cassette holder and
A front panel portion having a cassette insertion port is integrally formed at a front end portion, which is slidably provided on the chassis in a cassette insertion direction, and is loaded on a disk table by pressing the front panel portion in the cassette insertion direction. And a slide plate for detaching the cassette holder from the loading position.

[0017]

When the slide plate is slid, an arbitrary position on the front panel unit integral with the slide plate may be pressed in the cassette insertion direction with a finger or the like. Therefore, any position on the front panel unit may be pressed. Even when the apparatus is made thinner, it is less likely that the finger or the like hits the disk cassette to be ejected.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

First, a first embodiment will be described with reference to FIG.

In FIG. 1, the front end of a metal slide plate 1 is extended, and a front panel portion 1c integral with the slide plate 1 is formed by bending the extended portion upward. A cassette insertion slot 1d is formed in the front panel section 1c. The front panel 1c
Has a function of facilitating the insertion of a cassette by providing a cassette insertion slot 1d, and also has a function of hiding the internal mechanism and the like of the cassette attaching / detaching device from the front to maintain the appearance of the cassette attaching / detaching device. Extension part is once folded down part 1e
Is formed and then raised to form the front panel portion 1c so as to cover all the portions visible from the front, such as the front end surface of the chassis.

The slide plate 1 is a slide plate 41 shown in FIG.
The spring 2 has one end attached to the slide plate 1 and the other end attached to a chassis (not shown) to urge the slide plate 1 forward and to be bent downward. For example, the lever 37 shown in FIG.
The stopper 37a of the cassette holder engages to lock the slide plate 1, and the projection of the cassette holder is fitted and guided in the inclined groove 1g, so that the movement of the slide plate 1 in the cassette insertion direction causes the cassette holder to move. Rise.

When the cassette is loaded, the cassette is inserted into the cassette insertion slot 1d of the front panel 1c integrated with the slide plate 1.
Insert Then, the shutter is continuously inserted into the cassette holder, and the shutter is opened by, for example, the shutter arm 46 shown in FIG. 4, and the eject pin 37b of the lever 37 is pushed to activate the trigger mechanism, whereby the slide plate 1 is moved forward. The cassette holder slides down, the disk cassette is loaded on the disk table, and the mounting of the cassette is completed.

Next, when ejecting the cassette,
An arbitrary location on the front panel 1c is pressed in the cassette insertion direction with a finger or the like. Then, the slide plate 1 is moved in the cassette insertion direction, the cassette holder is raised, and for example, the stopper portion 37a of the lever 37 is engaged with the locked piece 1f to lock the slide plate 1 at a predetermined position. Is performed, and the eject pin 37b of the lever 37 pushes the disc cassette forward, thereby ejecting the disc cassette from the cassette insertion slot 1d.

At this time, it is sufficient to press an arbitrary portion of the front panel portion 1c with a finger or the like, so that the cassette insertion slot 1d
The farther part can be pressed, and even if the front panel portion 1c is formed thin, there is no difficulty in ejecting the disk cassette when the disk cassette to be ejected hits the pressed finger or the like. In addition, since the pressing portion is located away from the cassette insertion slot 1d, the center can be pressed at the center of the finger, so that a large pressing force can be obtained. further,
Since it is only necessary to press an arbitrary position on the front panel portion 1c, it is not necessary to search for the position of the eject button as in the related art, and the cassette attaching / detaching device becomes easier to use.

In this embodiment, the front panel 1c
You may give design to the front of. That is, for example,
When the shape of the slide plate 1 is formed by punching out a metal plate by a press, a press pattern may be simultaneously formed on a portion corresponding to the front surface of the front panel portion 1c. Further, the front surface of the front panel portion 1c may be painted. Thereby, the design of the front panel portion 1c can be further improved.

In the present embodiment, the cassette insertion cover is connected to the front panel 1 corresponding to the cassette insertion opening 1d.
C is provided on the back surface of the cassette c so as to be rotatable and biased in a direction to close the cassette insertion slot 1d with a spring or the like, so that dust or the like enters from the cassette insertion slot when the disk cassette is not inserted. May be prevented.

FIG. 2 shows a second embodiment of the present invention in which the design of the front panel portion is further enhanced. That is, a separate component composed of a decorative plate 3 made of synthetic resin or the like and having a cassette insertion opening 3d similarly to the front panel portion 1c is attached to the front surface of the front panel portion 1c shown in FIG. , Is stuck. This makes it possible to obtain an appearance similar to that of a synthetic resin front panel fixed to a conventional chassis, and to further enhance the aesthetic appearance of the front panel portion. Further, in this case, the metal plate of the same material as the slide plate 1 is present on the inside, so that the strength of the front panel portion is smaller than that in the case where only the conventional synthetic resin front panel is used. Is greatly improved.

[0028]

According to the present invention having the above construction, even when the cassette attaching / detaching device is made thinner, it is possible to easily eject the disk cassette, and it is also possible to press an arbitrary place on the front panel. Because of the goodness, the cassette attaching / detaching device becomes easier to use.

Since the eject button is not required, the number of parts can be reduced, and the cost of the cassette attaching / detaching device can be reduced.

[Brief description of the drawings]

FIG. 1 is a view of a slide plate of a cassette attaching / detaching device according to a first embodiment of the present invention, wherein FIG. 1 (a) is a plan view, FIG. 1 (b) is a side view, and FIG. is there.

FIG. 2 is a side view of a slide plate of a cassette attaching / detaching device according to a second embodiment of the present invention.

3A and 3B are configuration diagrams of a slide plate and a front panel of a conventional cassette attaching / detaching device. FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a front view.

FIG. 4 is an exploded perspective view of a conventional cassette attaching / detaching device.

[Explanation of symbols]

 1 Slide plate 1c Front panel 1d Cassette insertion slot

Claims (1)

(57) [Claims] 1. A chassis, a cassette holder provided on the chassis, the cassette holder being movable in a direction perpendicular to the cassette insertion direction and capable of being mounted at a loading position, and provided on the chassis so as to be slidable in the cassette insertion direction. A front panel portion having an insertion opening for the cassette is integrally formed at the front end, and the cassette holder loaded on the disk table is moved from the loading position by pressing the front panel portion in the cassette insertion direction. A cassette attachment / detachment device comprising a detachable slide plate.