JPH0798913A - Erroneous insertion preventing mechanism for information recording/reproducing device - Google Patents

Abstract

PURPOSE:To prevent a cartridge whose thickness and/or width is different from that of a cartridge having a prescribed shape from being inserted into an information recording/reproducing device. CONSTITUTION:The cartridge 7a is inserted into the insertion port 5a of the information recording/reproducing device 6 in a direction A, the leading end of the cartridge 7a is made to abut on a tapered surface X installed on a 1st door 1 so as to push the 1st door 1 upward, then, the part 1b of the 1st door is moved upward by as long as the part 1a is pushed upward, then, the turning limitation of a 2nd door 2 is released. Thus, when the cartridge 7a is still more inserted, the 2nd door 2 is turned inward against a spring 4, then, the cartridge 7a can be inserted inward. On the other hand, when the different kind of cartridge which is thinner than the cartridge having a prescribed shape is inserted, the part 1b of the 1st door is not satisfactorily moved upward and the 2nd door is not turned, then, the insertion of the cartridge us inhibited. Thus, the cartridge which is thinner than the prescribed one is prevented from being erroneously inserted into the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents an erroneous insertion when a removable cartridge containing an information recording medium such as a magnetic disk or an optical disk is inserted into an information recording / reproducing apparatus such as a magnetic disk apparatus or an optical disk apparatus. Related to the mechanism.

[0002]

2. Description of the Related Art In information recording / reproducing devices such as magnetic disk devices and optical disk devices, a cartridge accommodating an information recording medium is detachable, and a cartridge is often inserted and ejected from an insertion opening as required.

Further, many of them are provided with a dustproof door at the insertion opening for inserting and ejecting the cartridge so as to prevent intrusion of dust and the like. For example, a dustproof door pivotally supported rotatably. It has been proposed to provide a spring whose position can be changed (see Japanese Utility Model Publication No. 2-33358).

[0004]

However, in such an information recording / reproducing apparatus, there is a risk that not only a cartridge having a predetermined shape but also a cartridge of a different shape or a foreign substance may be taken into the apparatus. However, there is a problem in that the wrong cartridge and the inside of the device that have been inserted are damaged by these erroneous insertions.

The present invention has been made in view of the above points, and in order to prevent a cartridge having a predetermined shape and a cartridge having a different thickness and / or width from being inserted into the information recording / reproducing apparatus, dustproofing is performed. An object is to provide an erroneous insertion prevention mechanism of an information recording / reproducing apparatus using a door.

[0006]

In order to achieve the above object, the present invention closes the insertion port of an information recording / reproducing apparatus for inserting and ejecting a cartridge accommodating an information recording medium, and is accompanied by the insertion of the cartridge. A first door that opens and closes in the thickness direction of the cartridge, a second door that is provided inside the first door and closes the insertion opening, and a first door that interlocks with the first door. Second until the door opens in place
The present invention provides an erroneous insertion prevention mechanism for an information recording / reproducing apparatus, which is provided with an opening preventing means for preventing the opening of the door.

Further, the insertion port of the information recording / reproducing apparatus for inserting and ejecting the cartridge containing the information recording medium is closed, and the cartridge is opened and closed in two parts in the thickness direction of the cartridge as the cartridge is inserted. The first door, a second door provided inside the first door to close the insertion opening, and the two first doors are connected to each other in a predetermined manner in conjunction with the first door. There is also provided an erroneous insertion prevention mechanism for an information recording / reproducing apparatus, which is provided with an opening blocking means for blocking the opening of the second door until it is opened to the position.

Further, in these information recording / reproducing apparatus, only the both ends of the first door corresponding to the width direction of the cartridge are provided with tapered surfaces for opening and closing the first door as the cartridge is inserted. Alternatively, the first door and the opening prevention means interlocking with the first door may be provided separately in two in the width direction of the cartridge.

[0009]

According to the present invention, the insertion opening of the information recording / reproducing apparatus is closed by the first door and the second door, and the cartridge can be inserted only when both are opened. Then, the first door is opened in the thickness direction of the cartridge as the cartridge is inserted, and the second door is opened to a predetermined position and is interlocked with the first door. Then, the second door is opened only when the restriction by the opening prevention means for preventing the opening of the second door is released.

Further, by opening and closing the first door in two parts vertically in the thickness direction of the cartridge, unless the two first doors are opened to predetermined positions in the thickness direction. , Make sure that the restrictions imposed by the opening prevention means are not lifted.

Further, by providing the tapered surfaces at both ends of the first door corresponding to the width direction of the cartridge, the first door is not opened by the cartridge having a width that does not contact the tapered surfaces at both ends. To do so.

It should be noted that the first door and the opening prevention means interlocking with the first door are provided in the width direction of the cartridge.
By separately providing the first door, the first door is prevented from being opened unless it comes into contact with both of the tapered surfaces of both end portions corresponding to the width direction of the cartridge.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. First, a first embodiment of the present invention will be described. FIG. 1 is a vertical sectional view showing an operating state when a cartridge of a predetermined shape accommodating an information recording medium is inserted into an information recording / reproducing apparatus, and FIG. 2 shows an operating state when ejecting the cartridge. FIG.

The erroneous insertion preventing mechanism of the information recording / reproducing apparatus is provided inside the face 5 on the front surface of the housing of the information recording / reproducing apparatus 6, and closes the insertion opening 5a for inserting and ejecting the cartridge 7a. First door 1 and this first
The second door 2 is provided further inside the door 1. Here, the first door 1 has a substantially U-shape, and is attached so as to be vertically movable so that the opening is directed downward and the second door 2 is covered.

Two parts 1 extending below the first door 1.
a and 1b, the distance that the cartridge 1a of the first door is pushed up and the portion 1a of the first door is pushed up is almost the same as the distance that the portion 1b of the first door and the second door 2 overlap. The positional relationships are equal. Further, both the first door 1 and the second door 2 are biased downward by springs 3 and 4.

With this structure, the cartridge 7a is inserted in the direction A (see FIG. 1A), and the tip of the cartridge (hereinafter, the front end based on the inserting direction is referred to as "tip"). (Hereinafter, the rear end will be referred to as a “rear end”) comes into contact with the tapered surface X provided on the first door 1 and pushes the first door 1 upward, so that the opening prevention means is provided. The 1b portion of the first door 1 is lifted by the amount by which the 1a portion is pushed up, and the rotation restriction of the second door 2 is released (see FIG. 1B). Therefore, when the cartridge 7a is further inserted, the second door 2 rotates inwardly against the spring 4 and the cartridge 7a can directly enter the inside (see FIG. 1C).

On the contrary, when the cartridge 7a is discharged in the B direction, the rear end of the cartridge is located at 1b of the first door 1.
The first door 1 is pushed up (see FIG. 2 (a)) by abutting on the tapered surface Y of the portion and further rotating the second door 2 toward the insertion opening 1a of the first door 1. The first door 1 is further pushed upward by abutting the part (Fig. 2).
(See (b)). As a result, the cartridge 7a can be ejected.

The operation when a heterogeneous cartridge having a thickness smaller than that of a cartridge having a predetermined shape is inserted into the information recording / reproducing apparatus of the first embodiment will be described. FIG. 3 is a vertical cross-sectional view showing an operation state when a different type cartridge is inserted.

In this case, even if the cartridge 7b is inserted in the direction A, the portion 1a of the first door 1 is pushed up by the thickness of the cartridge, and the portion 1b of the first door 1 is pushed.
The part also does not rise sufficiently to release the rotation restriction of the second door 2. Therefore, even if the cartridge 7b is to be further inserted into the inside, the tip of the 1b portion of the first door 1 comes into contact with the second door 2 to prevent the rotation in the C direction. It is prohibited to invade inside.

As described above, since the second door 2 does not rotate until the first door 1 moves up to a predetermined position, a wrong cartridge having a predetermined thickness is erroneously inserted into the apparatus. Can be prevented. Further, since the mechanism also serves as a dustproof door, it can be easily realized at low cost.

However, even in the information recording / reproducing apparatus having such a structure, when the cartridge 7b is inserted,
If the cartridge 7b is inserted while being lifted in the D direction, the first door 1 rises to a predetermined position, and as a result, the rotation restriction of the second door 2 is released, so that the cartridge 7b is inserted into the apparatus. May be inserted incorrectly.

Therefore, the second method for solving such a problem
An example will be described. FIG. 4 is a vertical sectional view showing an operating state when the cartridge of a predetermined shape is inserted into the information recording / reproducing apparatus of this embodiment, and FIG. 5 is a front view of the information recording / reproducing apparatus.

The erroneous insertion prevention mechanism of this information recording / reproducing apparatus has an insertion opening 5 for inserting and ejecting the cartridge 7a.
It is composed of two first doors 8 and 9 for closing a and a second door 10 provided further inside the first doors 8 and 9. Here, the first doors 8 and 9 are substantially U-shaped, and their openings are directed downward and upward,
The second door 10 is attached so as to be vertically movable so as to cover the second door 10.

The two portions 8a and 8b, 9a and 9b extending downward and upward of the first doors 8 and 9 are such that a cartridge having a predetermined thickness is inserted and the portions 8a and 9a move vertically. And 8b and 9b have a positional relationship such that the distance that the second door 10 overlaps is substantially equal. The first doors 8 and 9 and the second door 10 are both biased by springs 12, 11 and 13.

The operation of inserting and ejecting the cartridge 7a is the same as that of FIGS. 1 and 2 except that the cartridge 7a operates so as to push open the two first doors 8 and 9. Here, since the two first doors are provided on the upper and lower sides, as in the first embodiment, the cartridge D
It is no longer possible to move the cartridge in the direction and insert it, and it is possible to completely prevent erroneous insertion of a different type cartridge having no predetermined thickness (T) into the inside of the apparatus.

Further, the portions 8a and 9a of the first doors 8 and 9 are provided with tapered surfaces X1 to X4 at the left and right corners when viewed from the insertion opening 5a, and the other central portions are directed inward. Because it is carved (Z1 to Z4),
A cartridge having no width (W) that abuts the four tapered surfaces cannot push the first doors 8 and 9 up and down and consequently cannot be inserted into the apparatus.

Each of the first doors 8 and 9 can be formed as an integral door, but as shown in FIG. 5, the first door 8 having the tapered surface X1 and the tapered surface X are provided.
It can also be formed as a separate body, such as a first door 8'having three. In this way, by making the first door separate from each other on the left and right, the first door is prevented from being pushed open only by being in contact with one taper surface, and has a predetermined width (W). It is possible to completely prevent erroneous insertion of a different kind of cartridge into the apparatus.

As described above, by providing a total of four first doors, the second door 1 is provided unless all the tapered surfaces are pushed.
It is possible to completely prevent erroneous insertion of a cartridge having no thickness T or / and a width W by making it impossible to rotate 0.

The first door is provided with tapered surfaces X1 to X.
4 width (Z1 thru Z4 parts disappear,
It is also possible to open it toward the inside), in which case the parts can be simplified and the cost can be reduced.

[0030]

As described above, according to the present invention, the second door is not opened until the first door is opened to a predetermined position, so that a different kind cartridge having a predetermined thickness is not provided. It is possible to prevent erroneous insertion into the information recording / reproducing apparatus. Further, since the mechanism also serves as a dustproof door, it can be easily realized at low cost.

Further, when the first door is opened and closed by vertically dividing it into two parts in the thickness direction of the cartridge, the second door is not opened even when the cartridge is inserted while being pushed in one direction of up or down. Therefore, it is possible to completely prevent erroneous insertion of a different kind cartridge having a predetermined thickness into the inside of the apparatus.

Further, when taper surfaces are provided at both ends of the first door corresponding to the width direction of the cartridge, the first door is opened by a cartridge having a width that does not abut the taper surfaces at both ends. Since this is not done, it is possible to prevent erroneous insertion of a heterogeneous cartridge or the like that does not have a predetermined width into the apparatus.

It should be noted that the first door and the opening blocking means interlocking with the first door are provided in the width direction of the cartridge.
When provided separately, the first door is not opened unless it comes into contact with both tapered surfaces of both end portions corresponding to the width direction of the cartridge, so that the inside of the apparatus such as a heterogeneous cartridge having no predetermined width is opened. It is possible to completely prevent erroneous insertion into.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an operation state when a cartridge of a predetermined shape accommodating an information recording medium is inserted into an information recording / reproducing apparatus in a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing an operation state when a cartridge having a predetermined shape is ejected according to the first embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing an operation state when a different type cartridge having a different shape is inserted in the first embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing an operation state when a cartridge having a predetermined shape is inserted into the information recording / reproducing apparatus in the second embodiment of the present invention.

FIG. 5 is a front view of an information recording / reproducing apparatus which is a second embodiment of the present invention.

[Explanation of symbols]

 1, 8, 9 First door 2, 10 Second door 3, 4, 11, 12, 13 Energizing spring 5 Face 5a Insertion port 6 Information recording / reproducing device 7a Predetermined shape cartridge 7b Heterogeneous cartridge A Inserting cartridge Direction B Cartridge ejection direction C Second door rotation direction D Cartridge movable direction

Claims (4)

[Claims] 1. A first door that closes an insertion port of an information recording / reproducing apparatus for inserting and ejecting a cartridge containing an information recording medium, and opens and closes in the thickness direction of the cartridge when the cartridge is inserted. And a second door provided inside the first door to close the insertion opening,
An information recording / reproducing apparatus comprising: an interlocking device that interlocks with the first door to prevent the second door from being opened until the first door is opened to a predetermined position. Incorrect insertion prevention mechanism. 2. An insertion port of an information recording / reproducing apparatus for inserting and ejecting a cartridge containing an information recording medium is closed, and the cartridge is divided into upper and lower parts in the thickness direction of the cartridge as the cartridge is inserted. A first door that opens and closes, a second door that is provided inside the first door and closes the insertion opening, and a first door that interlocks with the first door. An erroneous insertion preventing mechanism for an information recording / reproducing apparatus, comprising: an opening preventing means for preventing the opening of the second door until both are opened to a predetermined position. 3. A taper surface for opening and closing the first door as the cartridge is inserted is provided only at both ends of the first door corresponding to the width direction of the cartridge. Alternatively, the erroneous insertion prevention mechanism of the information recording / reproducing apparatus according to claim 2. 4. The information recording / reproducing apparatus according to claim 3, wherein the first door and the opening prevention means interlocking with the first door are provided in two parts in the width direction of the cartridge. Incorrect insertion prevention mechanism.