JPH0423356B2 - - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a recording and/or reproducing device such as a tape recorder or an optical disc player, and particularly relates to a recording and/or reproducing device such as a tape recorder, an optical disk player, etc. The present invention relates to a recording and/or reproducing device that is inserted through the mouth and is automatically mounted at a predetermined mounting position using a mounting mechanism disposed inside the device.

<Background Art and its Problems> Conventionally, for example, in a video tape recorder, in order to improve its operability, there has been a video tape recorder in which an operating section is disposed on the front surface of the video tape recorder so as to be freely operable. In such a video tape recorder, it is necessary to store and mount the magnetic tape, which is the recording medium, in a predetermined mounting position provided inside the main body of the video tape recorder. is inserted into the insertion slot provided on the front of the outer casing of this videotape recorder, and after being held by the mounting mechanism arranged opposite to this insertion slot, the mounting mechanism automatically inserts the It is designed to be moved to the mounting position and worn.

By the way, in such a video tape recorder, the outer casing is constructed as a sealed type and the inside cannot be seen through, so once the tape cassette is installed, it is impossible to visually check the tape cassette from the outside. This may lead to inadvertent double insertion.

Conventionally, therefore, in such video tape recorders, after the tape cassette is installed, the insertion opening is mechanically closed to prevent the insertion of other tape cassettes, etc. However, in such a video tape recorder, the above-mentioned tape cassette is inserted into the insertion slot by pushing it against pressure above a certain level due to abrasion force or the like. Therefore, even if the user of this video tape recorder receives pressure on the tape cassette due to the closing of the insertion opening during the insertion operation of the tape cassette, it is difficult to insert the tape cassette due to the closing of the insertion opening. Unaware that the tape cassette was blocked, he attempted to insert the tape cassette two or three times, and only after realizing that the tape cassette could not be inserted easily did he realize that the tape cassette was already inside the video tape recorder. It frequently happens that the tape cassette senses that another tape cassette is installed, and this incorrect insertion accompanied by pressing force can damage the internal mechanism of this video tape recorder. It has the disadvantage of causing accidents like the one above.

In particular, since the pressing force when a user inserts a tape cassette as described above varies from person to person and is difficult to predict, it is possible to prevent such an insertion operation at the design stage of this video tape recorder. It is also not easy to set the necessary and sufficient strength.

<Object of the invention> Therefore, in view of the above-mentioned actual circumstances, the present invention has the following objectives:
By warning the double insertion of a recording medium during the insertion operation and making sure that the user is aware of the double insertion, the user is immediately encouraged to stop the erroneous operation, and in addition, damage to the internal mechanism of the recording and/or playback device can be prevented. The purpose is to prevent.

<Summary of the Invention> In other words, in order to achieve the above-mentioned object, the present invention includes an outer casing, an insertion opening for inserting a recording medium formed in a part of the outer casing, and an insertion opening facing the insertion opening. In a recording and/or reproducing apparatus, the recording and/or reproducing apparatus has a mounting mechanism that holds the recording medium and moves and mounts the recording medium to a predetermined mounting position, detecting that the recording medium is at a predetermined mounting position. A first detection means, a second detection means for detecting that the recording medium is inserted into the insertion slot, and detection signals obtained by each of the detection means are supplied and these detection signals are simultaneously obtained. The device is equipped with a warning means that operates only when the alarm occurs.

<Examples> Hereinafter, specific examples of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, a video tape recorder serving as a recording and/or reproducing device in this embodiment inserts a tape cassette containing a magnetic tape serving as a recording medium through an insertion slot 2 formed on the front surface of an outer casing 1. 3 was inserted.
Note that this outer casing 1 is formed as a closed type, and the inside thereof cannot be seen through. After the tape cassette 3 is inserted through the insertion slot 2, it is housed and held in a cassette holder 5, which serves as a recording medium mounting means, and is disposed in the outer casing 1, facing the insertion slot 2. It's summery. This cassette holder 5 is moved to the second position by an elevating mechanism (not shown) that operates as the tape cassette 3 is stored.
As shown in the figure, the tape cassette 3 is lowered and moved to a predetermined mounting position, and the magnetic tape stored inside is wound around a predetermined running path so that the tape can run.

At the lowered position of the cassette holder 5, a micro switch 4 is provided as a first detection means for detecting whether or not the tape cassette 3 is mounted at the predetermined mounting position. This micro switch 4 causes the movable contact 6 to move onto the cassette holder 5 as the cassette holder 5 is lowered.
It is activated when a part of the video tape recorder is pressed to output a detection signal, and this detection signal is sent to one input terminal of an AND circuit 7 arranged in a control section inside the video tape recorder. It was designed to be supplied to

In addition, near the insertion opening 2 in the outer casing 1,
A photocoupler 10 including a phototransistor 8 and a light emitting diode 9 is provided so as to face each other with the insertion opening 2 interposed therebetween. The phototransistor 8 is the light emitting diode 9.
It reacts with the irradiation light emitted from the irradiation light, and outputs a detection signal when the irradiation light stops, and this detection signal is supplied to the other input terminal of the AND circuit 7. This is what was done. Further, a lid 11 is attached to the insertion opening 2 so as to cover the entire surface of the insertion opening 2 so as to rotate around a fulcrum 12 so as to be openable and closable. Then, the tip of the tape cassette 3 is pressed and rotated inside the outer casing 1, thereby blocking the above-mentioned irradiation light. That is, in this video tape recorder, the above-mentioned photo coupler 10 and the above-mentioned lid body 1 are used.
1 constitutes second detection means for detecting that the tape cassette 3 is inserted into the insertion opening 2.

Further, the AND circuit 7, which is supplied with the detection signals obtained by the two detection means described above to each input terminal, outputs a drive signal to the alarm device 13, which serves as a warning means, only when each of the detection signals described above is supplied at the same time. I'm starting to do that.

This alarm device 13 generates a buzzer sound in response to the output signal of the AND circuit 7, and also includes an alarm lamp 14 attached to the front surface of the outer casing 1.
It is designed to blink.

The cassette holder 5 is provided with a stopper 15 at a position facing the insertion opening 2 when the cassette holder 5 is lowered. This stopper 15 is for mechanically preventing double insertion of the tape cassette 3, and receives the tape cassette 3 inserted from the insertion opening 2 when the cassette holder 5 is lowered. It is designed to prevent that insertion.

In the video tape recorder configured in this way, as shown in FIG.
If another tape cassette 16 is double-inserted with the tape cassette 16 properly stored and mounted, the tip of the other tape cassette 16 will come into contact with the lid 11, causing the lid 11 to rotate. The operation is performed to block the irradiation light and output the detection signal of the phototransistor 10 to the AND circuit 7. Then, since the AND circuit 7 has already been supplied with the detection signal of the micro switch 6 accompanying the descent of the cassette holder 5, upon receiving the detection signal from the phototransistor 10, it immediately sends a drive signal to the alarm device 13. will be output. Therefore, the alarm device 13 is activated to sound the above-mentioned buzzer and flash the alarm lamp 14 to warn that the insertion of the other tape cassette 16 is a double operation.

Then, the user of the video tape recorder recognizes that the tape cassette 16 has been inserted incorrectly, and either the tip of the tape cassette 16 contacts the stopper 15 or the stopper 15 is pressed with a strong force. This insertion operation must be stopped before pressure contact occurs.

In this way, in the video tape recorder of this embodiment, the alarm device 13 is activated immediately when the tape cassette 16 is double inserted, so that the user can immediately avoid double insertion. It is possible to recognize this erroneous operation and stop it, thereby reducing labor costs caused by this erroneous operation.

Furthermore, since the above-mentioned double insertion can be quickly stopped, the tip of the tape cassette 16 can be inserted into the cassette holder 5 inside the video tape recorder.
There is no risk of damage caused by pressing with excessive force.

Further, since the alarm device 13 is configured to operate only when the detection signals of the phototransistor 8 and the microswitch 4 are obtained at the same time, a buzzer sound can be used as a warning means. Therefore, it is possible to stop the erroneous operation by affecting the user's hearing.

Furthermore, the alarm device 13 can be activated not only when the tape cassette 16 is double inserted, but also when a child or the like accidentally touches the insertion slot 2. 11 blocks the irradiation light, even if a long and thin rod is inserted through the insertion port 2, it will be reliably detected and will operate quickly.
This will give a warning to those around you.

Further, in the above embodiment, the micro switch 4 was used as the first detection means, but the
For example, as shown in FIG. 3, a light emitting diode 17 and a phototransistor 18 are disposed facing each other at the lowered position of the cassette holder 5, and the light emitted from the light emitting diode 17 to the phototransistor 18 is detected. The detection signal may be obtained by being blocked by a shielding plate 19 provided on the lower wall of the cassette holder 5 as the cassette holder 5 is lowered. It is possible to provide a detection means with excellent responsiveness.

Further, in the above embodiment, as the second detection means,
Although the photocoupler 10 and the lid 11 are used, the second detection means may be one in which the lid 11 operates the micro switch 20, as shown in FIG. 4, for example. Alternatively, the lid 11 may be omitted, and a passing object may be detected only by the photocoupler 10, or a reflective photocoupler may be used. It can be used as a detection means with a simple structure.

That is, the above-mentioned first detection means and second detection means may be of any type as long as they can detect the presence or absence of an object, and may take various forms, and may be appropriately selected depending on the function. can.

Further, in the above embodiment, as a warning means, an alarm device 13 that dims the alarm lamp 14 and sounds a buzzer is provided, but the form of such a warning means also depends on the location of the video tape recorder and the user's preference. Various settings can be made depending on the user's preference. For example, a system may be used in which human voice is synthesized using a microcomputer to warn against double insertion of the tape cassette 16.

In the above embodiment, a video tape recorder has been described, but the present invention is also applicable to an audio cassette tape recorder, an optical disk player, etc., in which the recording medium is inserted through an insertion slot formed in the outer casing and placed inside. A record of automatic mounting at a predetermined mounting position using a mounting mechanism provided
It can be widely applied to recording and/or playback devices, and can provide a great effect by warning of double insertion of a recording medium in the recording and/or playback device, preventing damage to the recording and/or playback device, etc. It is something that brings.

<Effects of the Invention> As is clear from the description of the embodiments described above, according to the present invention, even when a recording medium is properly stored and mounted in a recording and/or reproducing apparatus, it is possible to perform duplication of another recording medium. In the event that there is an erroneous insertion or insertion of another object, the user of the recording and/or reproducing device can quickly recognize the erroneous operation and can quickly stop the erroneous operation. Further, it is possible to prevent damage to the internal mechanism of the recording and/or reproducing apparatus due to continuous and repeated such erroneous operations.

[Brief explanation of drawings]

FIG. 1 is a partially omitted sectional view showing one embodiment of the present invention, FIG. 2 is a partially omitted sectional view showing a video tape recorder with a tape cassette properly installed, and FIG. FIG. 4 is a partially omitted sectional view showing another embodiment of the second detection means. FIG. 4 is a partially omitted sectional view showing another embodiment of the second detection means. DESCRIPTION OF SYMBOLS 1... Outer case, 2... Insertion slot, 3, 16... Tape cassette, 4, 20... Micro switch, 5... Cassette holder, 7... AND circuit, 8, 18... Photo transistor, 9, 17... Light emitting diode, 10...
Photo coupler, 11...lid body, 13...alarm device,
14...Alarm lamp, 19...Closing board.

Claims (1)

[Claims] 1. An outer casing, an insertion port formed in a part of the outer casing for inserting a recording medium, and a device disposed opposite to the insertion port that holds the recording medium and moves the recording medium to a predetermined mounting position. In a recording and/or reproducing device comprising a mounting mechanism for mounting,
a first detection means for detecting that the recording medium is in a predetermined mounting position; a second detection means for detecting that the recording medium is inserted into the insertion slot; 1. A recording and/or reproducing apparatus comprising: a warning means which is supplied with detection signals and which operates only when these detection signals are obtained simultaneously;