JPH0540979A - Cassette type magnetic recording / reproducing device - Google Patents

Abstract

(57) [Summary] [Objective] In a cassette-type magnetic recording / reproducing apparatus used for audio equipment, etc., when the shape of the tape cassette is different, the problem that recording / reproducing cannot be performed by one apparatus is solved, and different Provided is an excellent cassette type magnetic recording / reproducing apparatus capable of recording / reproducing tape cassettes having different shapes together. A storage lid 4 and a cassette receiving plate 5 provided inside the main body 1 of the apparatus are provided, and a detection unit 9 for identifying the type of tape cassette is provided in a part of a recess 8 of the cassette receiving plate 5. .. [Effect] It is possible to identify different types of tape cassettes with one device and automatically select and operate the electric circuit corresponding to each tape cassette, and to cut off unnecessary electric circuit power supply. The consumption of can be saved. In addition, the degree of freedom in designing the device is expanded, which is effective for downsizing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette type magnetic recording / reproducing apparatus used for audio equipment and the like, and particularly when a tape cassette having a different shape is mounted, the type of the tape cassette is identified to identify each tape cassette. The present invention relates to a cassette-type magnetic recording / reproducing apparatus equipped with a detection unit capable of operating a function corresponding to the above.

[0002]

2. Description of the Related Art In recent years, there have been remarkable improvements in the acoustic characteristics of music and the like by the magnetic recording / reproducing system. Even in the recording and reproducing by the conventional analog signal using the cassette tape,
With the improvement of the characteristics of magnetic heads and magnetic tapes or the development of signal processing technology, it has become possible to provide extremely high quality sound. On the other hand, audio equipment utilizing recording and reproduction by digital signals is rapidly spreading, and there is an extremely high evaluation for the audio quality. That is, it is a compact disc (CD) using an optical recording medium, and is also a digital audio tape recorder (hereinafter referred to as DAT) that records and reproduces digital signals on a magnetic tape. This DAT technology uses R-DA with a rotary magnetic head.
There are two types, T and S-DAT having a fixed magnetic head, and the magnetic tape and recording / reproducing apparatus used have completely different structures.

On the other hand, the conventional cassette type magnetic recording / reproducing apparatus and tape cassettes have a huge amount of storage due to product development and supply to the market for many years.

[0004]

However, the devices and media relating to recording and reproducing used in the above-mentioned conventional audio equipment are not compatible because the recording and reproducing systems and the constituent elements of the devices are different from each other. When new technologies or devices are developed, general consumers have to purchase new devices or media, and there is a problem in that tape cassettes accumulated in the past become useless.

The present invention is intended to solve the above problems,
To provide an excellent cassette type magnetic recording / reproducing apparatus equipped with a detection section capable of detecting the type of a tape cassette having a different shape and automatically switching electric circuits and operation mechanisms when the tape cassettes having different shapes are loaded. The purpose is that.

[0006]

In order to achieve the above object, the present invention provides a storage lid for inserting and holding a tape cassette, and a storage lid for storing the tape cassette, which is attached to the main body of the apparatus. And a cassette receiving plate for supporting the tape cassette provided in the main body of the cassette receiving plate of the cassette receiving plate that can identify the type of the tape cassette when the tape cassettes of different shapes are loaded in the main body of the device. It has a recess.

[0007]

Therefore, according to the present invention, since the concave portion of the cassette receiving plate installed in the main body of the apparatus is provided with the detecting portion capable of identifying the type of the tape cassette, it corresponds to the type of the loaded tape cassette. Since the electric circuit and the operating mechanism portion of the magnetic recording / reproducing apparatus can be selected and switched, recording / reproducing can be performed by using a plurality of tape cassettes having different shapes with one cassette type magnetic recording / reproducing apparatus. Further, by identifying the tape cassettes having different shapes, unnecessary electric circuits and power supply circuits corresponding to other tape cassettes can be cut off, so that useless power consumption can be prevented. Furthermore, since it is possible to reproduce the tape cassette recorded by the conventional analog method with one cassette type magnetic recording / reproducing apparatus, it is possible to utilize many tape cassettes accumulated from the past without waste. It is what

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a storage lid of a cassette type magnetic recording / reproducing apparatus according to an embodiment of the present invention is opened, and FIGS. 2A and 2B are front views of two types of tape cassettes having different shapes. 3A and 3B are cross-sectional side views of main parts showing states in which tape cassettes having different shapes are being inserted into the storage lids, and FIGS. 4A and 4B are storage lids into which tape cassettes having different shapes are inserted. FIG. 7 is a side sectional view of a main part showing a state when the main body is closed.

In FIG. 1, reference numeral 1 is a main body of an apparatus having a display section 2 and various operation buttons 3 on its front surface, and a main body 1 is a tape cassette, which will be described later, inserted into a storage lid 4.
It is provided with a cassette receiving plate 5 for supporting the tape cassette when it is loaded inside. A take-up shaft 6 and a feed shaft 7 for transferring the magnetic tape are connected to the cassette receiving plate 5 with a driving unit such as a motor or a flywheel (not shown) provided in the lower portion of the cassette receiving plate 5. Is provided. Further, the cassette receiving plate 5 is provided with a concave portion 8 into which the convex portion is inserted when the tape cassette having the convex portion is loaded, and 9 is a cassette receiving plate 5 except a part of the concave portion 8. Is a detection unit attached to the lower part of. Reference numeral 10 is a magnetic head, 11 is a capstan, and 12 is a pinch roller.

In FIG. 2A, 13 is a tape cassette (hereinafter referred to as a digital compact cassette) having a flat shape which is used when recording / reproducing a digital signal. The shutter unit 15 is provided. In FIG. 2 (b),
Reference numeral 16 is a tape cassette (hereinafter referred to as an analog compact cassette) having a convex portion 17 used when recording and reproducing an analog signal, and a magnetic tape 18 is housed therein.

The operation of the present invention having the above structure will be described with reference to FIGS. FIG. 3 shows a state in which the storage lid 4 is opened from the main body 1, and the digital compact cassette 13 or the analog compact cassette 16 is inserted into the storage lid 4 in a state as shown in the drawing as needed. The detection unit 9 including a micro switch or the like is mounted on a circuit board 19 provided under the cassette receiving plate 5, and the pins 20 are provided on the cassette receiving plate 5.
Of the recess 8 is projected upward from a hole 21 provided in a part of the recess 8. Therefore, the digital compact cassette 13
3 is inserted into the storage lid 4, and is pushed down in the direction of the arrow shown in FIG.
Since the lower surface of 3 is supported by the cassette receiving plate 5,
As shown in FIG. 4A, the pin 20 of the detection unit 9 is not pushed down and the detection unit 9 does not operate. Therefore, the electric circuit operates only the digital signal processing circuit and the common signal processing circuit, and the analog signal processing is performed. No power is supplied to the circuit.

When the analog compact cassette 16 is loaded, the flat portion of the analog compact cassette 16 is supported by the cassette receiving plate 5, but the convex portion 17 on the front surface of the analog compact cassette 16 is the concave portion 8 of the cassette receiving plate 5. Since the pin 20 of the detection unit 9 is pushed down by the convex portion 17 because it is fitted and housed in
The detector 9 operates, and the electric circuit is switched from the digital signal processing circuit to the analog signal processing circuit.
Therefore, in this case, no power is supplied to the digital signal processing circuit, and it is possible to prevent wasteful power consumption.

As described above, according to the above embodiment, the concave portion 8 of the cassette receiving plate 5 provided inside the main body 1 of the apparatus.
The digital compact cassette 13 or the analog compact cassette 16 is provided because the detection unit 9 is provided in a part of the
Is loaded, the pin 20 of the detection unit 9 can move up and down depending on the presence or absence of the convex portion 17 of the analog compact cassette 16 to activate the detection unit 9 such as a micro switch, thereby enabling the digital compact cassette 13 or Each signal processing circuit corresponding to the analog compact cassette 16 can be operated. In this embodiment, the micro switch is used as the detection unit 9, but a spring switch or an optical switch may be used as long as it can detect the convex portion 17 of the analog compact cassette 16. ..

[0014]

As is apparent from the above embodiment, the present invention has a storage lid for inserting and holding a tape cassette,
A cassette receiving plate for supporting the tape cassette when the storage lid is closed to the main body of the device, and a detecting portion is provided in the concave portion of the cassette receiving plate, so that a tape cassette having a different shape can be mounted on the device. Since the type of the tape cassette can be identified by the detection part when it is attached to the main body, it is possible to automatically select and operate the necessary electric circuit and operation mechanism part according to the type of each tape cassette. Is. Further, since it is possible to cut off the supply of electric power to unnecessary electric circuits other than the selected electric circuit, it is possible to prevent wasteful consumption of batteries and the like.

Further, the identification of the tape cassettes having different shapes according to the present invention does not utilize the original detection hole of one type of tape cassette such as a digital compact cassette, but the shape which the other tape cassette necessarily has. In a cassette-type magnetic recording / reproducing apparatus for a portable device, which is required to be miniaturized as much as possible due to the use of the convex portion of the tape, if the detecting portion corresponds to the convex portion of the other tape cassette, the cassette receiving Since it can be provided anywhere in the recess of the plate, it has a large degree of freedom in designing the device, and has an effect of effectively utilizing the volume of the device and contributing to downsizing.

[Brief description of drawings]

FIG. 1 is a perspective view of a cassette type magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2A is a front view of a digital compact cassette used in the same cassette type magnetic recording / reproducing apparatus. FIG. 2B is a front view of the same analog compact cassette.

FIG. 3 is a side view of a partial cross-section showing a state in which a digital compact cassette or an analog compact cassette is inserted into a storage lid of the cassette type magnetic recording / reproducing apparatus.

4A is a partial cross-sectional side view of a main part of a cassette-type magnetic recording device showing a state when a digital compact cassette is mounted. FIG. 4B is a partial cross-sectional side view of a part when the analog compact cassette is mounted. Figure

[Explanation of symbols]

 1 Main Body 4 Storage Lid 5 Cassette Receiving Plate 8 Recess 9 Detection Unit 13 Digital Compact Cassette (Tape Cassette) 16 Analog Compact Cassette (Tape Cassette)

Claims (2)

[Claims] 1. A cassette type magnetic recording / reproducing apparatus for recording / reproducing by using tape cassettes having different shapes, and a storage lid for inserting and holding the tape cassette, and the storage lid storing the tape cassette. And a cassette receiving plate for supporting the tape cassette provided in the main body when the tape cassette is attached to the main body of the device, and when the tape cassette having the different shape is loaded in the main body of the device, A cassette-type magnetic recording / reproducing apparatus having a detection unit capable of identifying the type of a tape cassette in the recess of the cassette receiving plate. 2. The cassette type magnetic recording / reproducing apparatus according to claim 1, wherein the detecting section is a detecting section for detecting a convex portion of one of the tape cassettes having different shapes.