JPH0334148A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To easily confirm the opening of a shutter even in a cartridge whose shutter opening/closing direction is set only in one direction and on which both- side recording can be performed by providing a rotary lever to confirm the opening of the shutter when the cartridge is inserted to an information recording and reproducing device. CONSTITUTION:When the cartridge 2 is inserted to the cartridge holder of the information recording and reproducing device setting the plane A of the cartridge facing upward, the tips of the shutter opening/closing arms 4a, 4b of an information recording and reproducing device loading mechanism are brought into contact with the tip of the cartridge 2. When the cartridge is further inserted, an arm 4 performs a rotary motion, and the shutter 5 of the cartridge 2 is opened slidably. After that, when an opening operation is completed, the tip of the cartridge 2 is brought into contact with the rotary lever 10, and rotated a little. Next, when the cartridge 2 is inserted to the information recording and reproducing device setting the plane B of the cartridge facing upward, the shutter 5 is opened only in a decided direction, therefore, the opening of the shutter 5 can be confirmed correctly with the rotary lever 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information recording/reproducing apparatus, and more particularly to a shutter opening confirmation mechanism for an information recording medium thereof.

[Conventional technology]

FIG. 6 is a perspective view of the main parts of a conventional information recording/reproducing apparatus, and FIG. 7 is a diagram illustrating its principle.

As shown in FIGS. 6 and 7, when the cartridge 2 containing the information recording medium 1 is inserted into the cartridge holder 3 of the information recording and reproducing apparatus, the information recording and reproducing apparatus loading mechanism (not shown) is equipped with a shutter opening/closing arm 4 (4a.

4b) and the tip of the cartridge 2 (7th
The state indicated by the broken line in the figure>. Further, when the cartridge 2 is inserted deep, the shutter opening/closing arm 4 provided in the cartridge holder 3 rotates, and the shutter 5 of the cartridge 2 moves according to the trajectory of the tip of the arm.
Sliding opening.

Thereafter, when the shutter opening operation ends, the tip of the cartridge 2 and the shutter opening confirmation protrusion 6 come into contact. In addition, in parallel with this operation, the cartridge insertion confirmation sensor 7 provided in the loading mechanism operates,
The loading mechanism causes the cartridge 2 to move downward together with the cartridge holder 3.

As a result, the cartridge support pin 8 provided in the information recording/reproducing device and the positioning hole 9 provided in the cartridge 2
are fitted, and the cartridge 2 is fixed. At the same time, a head (not shown) for recording and reproducing information is inserted into the window of the cartridge 2 from below the cartridge 2.

With the above steps, the loading operation of the cartridge 2 of the information recording medium 1 is completed, and the information recording and reproducing apparatus can now record and reproduce information.

Furthermore, if the shutter 5 does not open for some reason when the cartridge 2 is inserted into the information recording/reproducing device, the shutter opening confirmation protrusion 6 and the shutter 5 come into contact with each other before the cartridge insertion confirmation sensor 7 operates. , and no further insertion is possible.

[Problem to be solved by the invention]

Conventionally, the opening of the cartridge shutter was confirmed by providing the above-mentioned protrusion on the loading mechanism of the information recording/reproducing device. "In an optical disk cartridge, that is, a cartridge 2 in which the shutter 5 opens and closes only in a fixed direction as shown in FIG. 7, turn the cartridge 2 over as shown in the figure (
When inserted into an information recording/reproducing apparatus (with the 8th side facing up), the shutter opening confirmation protrusion 6 comes into contact with the shutter 5, causing a problem in that the opening of the shutter 5 cannot be confirmed correctly.

SUMMARY OF THE INVENTION An object of the present invention is to provide an information recording/reproducing apparatus which eliminates the drawbacks of the conventional apparatus described above and allows the opening of the shutter to be easily confirmed even in a cartridge in which the shutter opening/closing direction of the cartridge is unidirectional and double-sided recording/reproducing is possible. shall be.

[Means to solve the problem]

The above object is to provide an information recording and reproducing apparatus that records and reproduces information on and from a replaceable information recording medium. A shutter opening/closing mechanism is provided for slidingly opening a provided shutter and slidingly opening the shutter when taking out the information recording medium from the information recording and reproducing apparatus, and when inserting the cartridge into the information recording and reproducing apparatus. This is achieved by providing a rotatable lever for confirming the opening of the shutter.

[Effect]

In the present invention, when the information recording medium is inserted into the information recording and reproducing apparatus, a shutter provided on the cartridge of the information recording medium is slid open, and when the information recording medium is taken out from the information recording and reproducing apparatus, the shutter is opened. A shutter opening/closing mechanism for sliding the shutter to open is provided, and a rotatable lever is used as a mechanism for confirming the opening of the shutter when the cartridge is inserted into the information recording/reproducing apparatus.

〔Example] Embodiments of the present invention will be described below with reference to the drawings.

Note that the same parts as in the conventional example shown in FIG. 6 and subsequent figures are given the same reference numerals.

FIG. 1, FIG. 2, and FIG. 3 are principle explanatory diagrams for explaining the principle of an embodiment of the present invention.

With the side A of the cartridge 2 containing the information recording medium facing up, place the cartridge holder 3 (
6), the tips of the shutter opening/closing arms 4a, 4b provided in the information recording/reproducing device loading mechanism (not shown) come into contact with the tips of the cartridge 2, as shown in FIG. (The state indicated by the broken line in the figure). Further, when the cartridge is inserted deep, the shutter opening/closing arm 4 performs a rotational movement, and the shutter 5 of the cartridge 2 slides open according to the trajectory of the tip of the arm. After that, with the end of the shutter opening operation,
The tip of the cartridge 2 comes into contact with the rotatable lever 10 and rotates slightly (as indicated by the solid line in the figure). Further, along with this operation, the cartridge insertion confirmation sensor 7 provided in the loading mechanism is activated, and the loading mechanism is activated.

Thereafter, the loading operation is completed through the same operations as in the conventional case.

Next, FIG. 2 shows the state in which the cartridge 2 is inserted into the information recording/reproducing apparatus with the B side facing up.

In this case, since the shutter 5 opens and closes only in a fixed direction, the apparent opening and closing direction on the B side is different from that shown in FIG. 1, but the rotatable lever 10 allows the correct opening of the shutter 5 to be confirmed.

If the shutter 5 does not open correctly for some reason, both ends of the rotatable lever 10 will come into contact with the shutter 5 before the cartridge insertion confirmation sensor 7 operates, as shown in FIG. The cartridge 2 is never loaded into the information recording/reproducing device. At this time, correctly set the opening of the shutter 5 to Ii1! In order to recognize this, the difference between the height of the tip of the shutter 5 and the height of the cartridge body that contacts the rotatable lever 10 is as follows.
It is desirable that the thickness be at least 1 mm or more.

In addition, for boat fishing, the shutter 5 of the cartridge 2 is biased in the shutter closing direction by an elastic body such as a spring.
As shown in the figure, if the rotatable lever 10 for checking the shutter opening comes into contact with the tip of the cartridge 2, rotates slightly, and then locks the shutter opening/closing arm 4, vibrations etc. Then, the shutter opening/closing arm 4 comes off from the shutter 5, the shutter 5 closes, and there is no need to worry about colliding with the head of the information recording/reproducing device and damaging the head or the shutter 5.

The rotatable lever as described above is the shutter opening/closing arm 4 which rotates as explained in FIG.
The shutter opening/closing arm 1) (lla, 21b>) with linear movement as shown in FIG. In this figure, two shutter opening/closing arms 4la and flb and a rotatable lever lO are arranged alternately within the thickness of the cartridge 2.

In the above invention, the rotatable lever 1o is a mechanism for locking the shutter opening/closing arms 4la and llb, but the present invention is not limited to this, and as shown in FIG. A mechanism in which the enable lever IO directly locks the shutter 5 may also be used. In the present invention, the protrusions 12a and 12b provided at both ends of the rotatable lever 10 contact the tip of the cartridge 2, and after the cartridge 2 rotates slightly, the claws 13a and 13b also provided on the rotatable lever 10 move the shutter 5. It has a locking mechanism.

〔Effect of the invention〕

As explained above, when an information recording medium is inserted into an information recording and reproducing apparatus that records and reproduces information on a replaceable information recording medium, the shutter provided on the cartridge that houses the information recording medium is opened. The cartridge is provided with a shutter opening/closing mechanism that slides the shutter open when the cartridge is inserted into the information recording and reproducing apparatus, and when the information recording medium is taken out from the information recording and reproducing apparatus, the opening of the shutter is confirmed by va. By providing a rotatable lever for this purpose, it is possible to check the opening of the shutter on both sides (side A and side B) even in an information recording medium cartridge equipped with a shutter that opens and closes only in a fixed direction.

In addition, by making the shutter opening confirmation rotatable lever also have a shutter locking mechanism, the shutter opening/closing arm may come off the shutter due to vibrations, etc., and the shutter may close, colliding with the head of the information recording/reproducing device and causing the head or shutter to be damaged. There is no need to worry about damage etc.

[Brief explanation of drawings]

Figures 1 and 2 are illustrations of the principle of the present invention when the A side and B side of the cartridge are facing up, Figure 3 is an illustration of the situation when the shutter does not open, and Figures 4 and 5 are The figure is an explanatory diagram of the principle of another embodiment of the present invention, Figure 6 is a perspective view of the main part of an information recording/reproducing device according to a conventional example, and Figures 7 and 8 are conventional examples when different cartridges are used. FIG. ■... Information recording medium, 2... Cartridge, 3...
・Cartridge holder 4.1)...Shutter 1
)#1 Closed arm, 5...Shutter 6...Protrusion,
7... Cartridge insertion confirmation sensor 1o... Rotatable levers 12a, 12b... Protrusions, 13a, 13
b--nails. Figure A Figure Crane 6, Figure

Claims (3)

[Claims] (1) In an information recording and reproducing apparatus that records and reproduces information on and from a replaceable information recording medium, when a cartridge containing the information recording medium is inserted into the information recording and reproducing apparatus, a A shutter opening/closing mechanism is provided for sliding the shutter opened when the cartridge is inserted into the information recording/reproducing apparatus, and for slidingly opening the shutter when the information recording medium is taken out from the information recording/reproducing apparatus. An information recording/reproducing device characterized by being provided with a rotatable lever for checking the opening of a shutter. (2) The information recording and reproducing apparatus according to claim (1), wherein at least two patterns of the opening of the shutter can be confirmed. (3) The information recording and reproducing apparatus according to claim (1), wherein the rotatable lever also serves as a shutter lock mechanism.