JPS6391885A - Shutter opening/closing confirming mechanism - Google Patents

Abstract

PURPOSE:To exactly confirm an opening/closing state of a shutter by a simple structure, by providing a shutter which is attached to a case having in the front plural holes coupled to projections of the front wall of a carriage, and closes up some of the holes in the front. CONSTITUTION:A shutter 2 is provided with one hole 3 in its front, and on the other hand, the front of a cassette case 1 is provided two holes 4, 5. When the shutter 2 is closed, the hole 5 is closed up by the shutter 2, and when it is slid and fully opened, the hole 3 and the hole 4 are superposed, and the front of the cassette becomes a state that two holes are opened. When the shutter 2 is fully opened, the cassette case 1 is set correctly, and projections 11, 12 provided on a carriage 10 are held in the hole 5 and the holes 3, 4. Also, if the shutter 2 is inserted in an unopened state due to some reason, the projection 11 cannot be inserted into the hole 5, the cassette case cannot be inserted further, and an opening/closing state of the shutter 2 can be confirmed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a disc storage cassette that stores discs for recording and reproducing information.

<Conventional technology> Conventionally, when a disk storage cassette containing a disk for recording/playing information is inserted into a recording/playback device and recording/playback is performed, a shutter that exposes or covers the disk of the cassette is opened. A method of detecting whether the door is open or closed is by using an optical sensor.

<Problems to be Solved by the Invention> However, the conventional disc storage cassette shutter opening/closing confirmation mechanism has a complicated structure, and when the shutter of the cassette is dirty, the optical sensor cannot be activated. Since malfunctions may occur, there is a problem in that it is impossible to always reliably detect the open/closed state of the shutter.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk storage cassette with a simple structure, which allows stable and reliable confirmation of the open/closed state of the shutter at all times without being affected by dirt on the shutter of the cassette during recording or playback. The purpose of the present invention is to provide a shutter opening/closing confirmation mechanism.

<Means for Solving the Problems> In order to achieve the above object, the shutter opening/closing confirmation mechanism of the present invention includes a carriage that forms a recess for storing a cassette and has a plurality of protrusions on the front wall. A recording/reproducing device, a case having a plurality of holes on the front surface so as to fit with protrusions on the front wall of the carriage, and a case that is attached to the case and exposes a disc stored inside the case, and The disc storage cassette has an open front hole, and a shutter that covers the discs of the case and closes some of the front holes of the case.

<Function> When a disc storage cassette, which has multiple holes on the front of the case that fit into the protrusions of the carriage of the recording/playback device, is inserted into the carriage during recording/playback, the shutter of the cassette is opened and the inside is opened. Expose the stored disc. At the same time, the holes in the case that had been closed by the shutter are opened, and the plurality of projections on the carriage are fitted into the plurality of holes in the opened case. Therefore, it is confirmed that the shutter is open,
The disk storage cassette is securely set in the recording/reproducing device and begins the next operation. On the other hand, if the shutter is not opened for some reason even after the cassette is inserted into the carriage, the discs in the cassette remain covered and at the same time the hole in the case remains closed. Therefore, the cassette is not reliably set on the carriage within the recording/reproducing apparatus, and the shutter cannot be confirmed to be in the closed state and the next operation cannot be started. Therefore, it is possible to reliably confirm the open state of the shutter with a very simple structure.

<Embodiments> Hereinafter, the shutter opening/closing confirmation mechanism of the present invention will be explained in detail with reference to illustrated embodiments.

In FIGS. 1 to 4, reference numeral 1 indicates a disk storage cassette having an opening 1a in the center for exposing the disk stored therein, and a shutter 2 extending to the top and front surfaces to close the opening 1a. It is a cassette case. The shutter 2 slides left and right as shown by arrows A and H in the figure to open and close the opening 1a, thereby exposing or covering the disk. Fig. 1.2 is a front view and a plan view of the cassette case 1 with the shutter 2 closed, and Fig. 3.4 is a front view and a plan view of the cassette case 1 with the shutter 2 closed.
FIG. 2 is a front view and a plan view showing an open state. The shutter 2 has one hole 3 in its front face 2a, while the cassette case 1 has two holes 4 and 5 in its front face.

As shown in FIG. 1.2, when the shutter 2 is closed, the hole 5 provided on the front surface of the cassette case 1 is closed by the front surface 2a of the shutter 2, and the third shutter 2 is closed. 4 As shown in figure 4, when you slide the cloth in the figure and fully open it, hole 3 of shutter 2 and hole 4 of cassette case 1 will be exposed.
are stacked on top of each other, and the cassette case L is on the front of the cassette.
Two holes, hole 5 and overlapping holes 3 and 4, are open.

The cassette case 1 of the disc storage cassette having the above structure is inserted into the carriage 10 in the recording/playback apparatus during recording/playback as shown in FIG. 5.6.

The carriage 10 is approximately U-shaped, and the rear front wall thereof has projections 11 that fit into the holes 4 and 5 of the cassette case l.
．． It has 12.

FIG. 5 above shows the cassette case 1 being inserted into the carriage 10. When the cassette case 1 with the shutter 2 closed is inserted into the carriage 10 in the direction of arrow C, an opening/closing mechanism (not shown) opens the cassette case 1. The shutter 2 is opened by sliding in the direction of the arrow. When the shutter 2 is fully opened, as mentioned above, there is a hole on the front side of the cassette where the hole 3 on the front surface 2a of the shutter 2 and the hole 4 on the cassette case 1 overlap, and the hole 5 on the cassette case 1. When the cassette case l or carriage 10 is properly set, the protrusions 11 and 12 provided on the carriage 10 as shown in FIG. It falls to 4.

Furthermore, if the shutter 2 is inserted into the carriage 10 without being opened for some reason, the protrusion 11 will be inserted into the hole 5 because the front surface 2a of the shutter 2 will close the hole 5 of the cassette case 1, as shown in FIG. The cassette case 1 cannot be inserted any further. Therefore, it is possible to check whether the shutter 2 is open or closed.

<Effects of the Invention> As is clear from the above, the shutter opening/closing confirmation mechanism of the present invention includes a recording/reproducing device provided with a carriage that forms a recess for storing a cassette and has a plurality of protrusions on the front wall. The case further includes a case having a plurality of holes on the front surface that engage with protrusions on the front wall of the carriage; A disc storage cassette is provided that has a shutter that covers the discs in the case and closes some of the holes on the front of the case, so even if the cassette is inserted into the carriage during recording or playback, the shutter will not open for some reason. When the shutter is not inserted, the shutter remains covering the disc and the hole on the front of the cassette case, and the cassette is not inserted into the recording/playback device, making sure to check that the shutter is open and closed. can, therefore,
With a very simple structure, it is possible to reliably check whether the shutter is open or closed.

[Brief explanation of the drawing]

Fig. 1 is a front view of the disc storage cassette according to the present invention with the shutter closed, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a front view of the disc storage cassette of the present invention with the shutter open, and Fig. 4. is a plan view of FIG. 3, FIG. 5 is a plan view showing the cassette being inserted into the carriage, FIG. 6 is a plan view showing the cassette being inserted into the carriage with the shutter open, and FIG. 2 is a diagram showing a state in which the cassette is inserted with the shutter closed. l...Cassette case, 2...Shutter, 3...
・Hole (shutter side), 4.5... hole (cassette side)
, IO...carriage, 11...protrusion. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) A recording/reproducing device comprising a carriage that forms a recess for storing cassettes and has a plurality of protrusions on the front wall, and a plurality of holes on the front surface so as to fit with the protrusions on the front wall of the carriage. and a case that is attached to this case,
A disk storage cassette having a shutter that exposes the disks stored inside the case and opens holes on the front of the case, and a shutter that covers the disks of the case and closes some of the holes on the front of the case. A shutter opening/closing confirmation mechanism comprising: