JPS581911Y2 - magnetic recording and playback device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magnetic recording and reproducing device that is sometimes suitable for early childhood education.

Conventionally, a picture of an animal and the corresponding English word, for example, were written on a single card, and when the card was inserted into a predetermined position of a magnetic playback device, the card was automatically sent. There are devices known that play the pronunciation of words or sounds that explain pictures, and are used to educate young children, but these devices only have one learning content written on each card, and the The learning content is finished playing by moving in a straight line.
The card must be reloaded even when learning the same content, and the card insertion operation becomes extremely frequent, which is problematic as a device intended for early childhood education.

In view of the above circumstances, this invention has multiple (2n pieces: n is an integer)
After setting the card in a predetermined position using a card that has separate learning contents written on it, you can record or play back audio corresponding to the learning content of that section by simply pressing the section with your finger. In this way, we aim to provide a magnetic recording/playback device of this kind that can be operated simply.First, we will explain the case where the present invention is constructed as a playback-only device based on an illustrated embodiment. do.

1 has four windows 1A, IB with follower switches on the top wall
, 1. C, a main body case in which an ID and power switch 1a are arranged, a card insertion slot 1b, a speaker window 1c, an earphone jack 1d, etc. are arranged on the side wall, and a magnetic playback device and a drive device, etc., which will be described later, are housed inside; 2 is the surface; For example, visual learning contents 2A, 2B, 2C, and 2D consisting of mutually different patterns and English words corresponding to those patterns are separately written on the back, and each learning content 2A, 2B is written on the back side.

Magnetic tracks 2a and 2b spaced apart in a concentric arc shape on which audio etc. corresponding to 2C and 2D are pre-recorded.

2c and 2d are provided respectively, and when the card is inserted through the card insertion slot 1b to a predetermined position in the main body case 1, the learning contents 2A, 2B, 2C and 2D are displayed in the windows IA, IB, respectively.
IC and 1D and each magnetic track 2a
, 2b, 2c, and 2d are learning cards designed to match the movement trajectories of four playback heads, which will be described later.

In this case, two magnetic tracks 2a, 2b, 2c, and 2d are arranged on the same circumference as shown in FIG. 2, and each magnetic track covers an angular range of about 102 degrees. has been done.

Reference numeral 3 refers to turntables 4a, 4b, 4c, and 4d rotatably supported by a bearing at a central position within the main body case 1 and rotated at a predetermined speed by a drive device including a motor, etc.
are arranged on the turntable 3 so that when the card 2 is set at a predetermined position in the main body case 1, they can face the magnetic tracks 2a, 2b, 2c and 2d, respectively, and are given a rising habit by coil springs. playhead.

Incidentally, as is clear from the above description, the reproducing heads 4a and 4C move over the magnetic tracks 2a and 2C, and the reproducing head 4b
and 4d can travel on magnetic tracks 2b and 2d, respectively.

Reference numeral 5 denotes a rotary terminal fixed to the center of the turntable 3 and having five layers of annular terminal pieces, and as shown in FIG. Each is divided into two terminal pieces 5a and 5a'.

Terminal pieces 5b and 5b', terminal piece 5C', terminal piece 5d and 5d
', and the fifth layer terminal pieces are separated from one terminal piece 5e, terminal pieces 5a and 5C' terminal pieces 5b and 5d'
, the terminal pieces 5C and 5a' and the terminal pieces 5d and 5b are connected, respectively, and each of the terminal pieces 5a, 5b, 5c and 5d is individually connected to each playback head 4a, 4b, 4c and 4d. 5e is the playback head 4a, 4b, 4c and 4
d in common.

A fixed terminal 6 is fixed to the main body case 1 and has five layers of connection terminals, each contact terminal 6a, 6b, 6c,
6d6e are terminal pieces 5a and 5a' of the rotating terminal 5, respectively.

5b and 5b', 5c and 5c', and 5d and 5d' can be contacted.

Reference numeral 7 denotes a pair of switch push plates fixed to the outer circumference of the turntable 3 at an interval of 180 degrees, and each time the turntable 3 rotates by a predetermined angle (1800 degrees in this example), the main body case 1 By pushing down a normally closed switch 8 fixed to the switch 8 to turn it OFF, it stops the operation of a motor rotation holding device, which will be described later, and stops the rotation of the turntable 3.

In Figure 5, 9a, 9b, 9c and 9d are good faith IA
, IB, IC and 1D attached to bona fide IA, I
B. Normally open switches 10a, 10b that are closed when IC and 1D are pressed.

10C and 10d are provided to correspond to good intentions IA, IB, IC and 1D, and switches 9a, 9b,
As soon as 9c and 9d are closed, even momentarily, they begin to operate and act as a bona fide IA.

An operation holding device 11 is an operation holding device 10a that holds the regeneration circuit and drive circuit corresponding to IB, IC, and 1D in a closed state and stops its operation only when the operation of a motor rotation holding device described later stops.

12. A selection device that operates to immediately disable all other operation holding devices when there is an input from any one of 10b, 10c, and 10d, and return them to the original operable state when no input is received; are operation holding devices 10a, 10b,
When there is an input from one of the tilts 10c and 10d, the motor rotation holding device starts operating, rotates the motor (described later), maintains the rotation, and stops operating when switch 8 is turned OFF, stopping the rotation of the motor. , 13 is a motor for rotating the turntable 3, 14 is an equalizer amplifier, 15 is a power amplifier, 16 is a speaker, 17 is a headphone, 18 is a changeover switch, and 19 is a power source.

Since this device is described as described above, first turn on the power switch 1a, then insert the learning card 2 from the card insertion slot 1b as shown by the arrow in FIG. When set to , each learning content 2
A, 2B, 2C and 2D are windows IA, IB, 1C and 1
D, respectively, while each magnetic track 2a, 2b, 2c
and 2d as shown in FIG. 2, the playback head 4a,
4b.

The contact terminals 6a, 6b, 6C, 6d and 6e are aligned with the movement trajectories of terminal pieces 5a, 5b, 4c and 4d, respectively.
5c, 5d and 5e, respectively, and the device is ready for operation.

Here, for example, when one person presses the window with a finger, the switch 9a is closed and the operation holding device 10a immediately starts operating.

Then, the playback head 4a - terminal piece 5a - contact terminal 6a -
Operation holding device 10a - Equalizer amplifier 14 - Power amplifier 15a - Speaker 16 or headphone 17 -
Since a regeneration circuit consisting of a power source 19, a contact terminal 6e, and a terminal piece 5e and a drive circuit consisting of a motor 13, an operation holding device 10a, a motor rotation holding device 12, and a power source 19 are formed, the turntable 3 rotates and plays. Only the head 4a picks up the audio recorded on the magnetic track 2a, and this audio is reproduced by the speaker 16 or headphone 17.

Since this audio is the explanation of the learning content of the two people appearing in the window and the pronunciation of the words, audiovisual learning is achieved here.

In this way, when the turntable 3 rotates by a predetermined angle, that is, 180 degrees, the switch push plate 7 turns off the switch 8, so that the operation of the motor rotation holding device 12 is stopped, and the operation of the operation holding device 10a is stopped. As a result, the playback circuit and the drive circuit return to the open state, and the rotation of the turntable 3 is stopped, as well as the playback of the audio.

In this way, - times of reproducing operations are completed, but at this time, the positions of the respective reproducing heads 4a, 4b, 4c and 4d are aligned with the magnetic tracks 2c, 2d, 2a and 2b, respectively, as shown in FIG. Contact terminals 6a, 6b, 6C26d and 6
Terminal pieces 5a', 5b', and 5c' are denoted by e.

5d' and 5e, respectively.

Next, when the window 1 is pressed again with a finger, the operation holding device 10a starts operating in the same manner as above, and the drive circuit is formed in the same manner as above, but the playback circuit consists of the playback head 4C and the terminal piece 5c. One terminal piece 5a'-contact terminal 6a-operation holding device 10
a - Equalizer amplifier 14 - Power amplifier 15 - Speaker 16 or headphone 17 Power supply 19 - Contact terminal 6
Since it is formed from one terminal piece 5e, the turntable 3
rotates, and only the reproducing head 4c picks up the audio recorded on the magnetic track 2a, and this audio is reproduced by the speaker 16 or headphone 17.

Therefore, the audio corresponding to the learning content 2A appearing on the window 1A is reproduced without fail.

The above series of operations will be performed in the same way if you press any of the other windows IB, IC, and 1D with your finger, and the audio corresponding to each learning content 2B, 2C, and 2D will be played correctly. Needless to say.

Moreover, since this device has a selection device 11, even if the state is pressed almost simultaneously or if other windows are pressed during operation, only the operation holding device corresponding to the window pressed first will be selected. It works and the audio plays correctly.

Also, turn the learning card 2 upside down, left and right, and insert it into the main case 1.
Each learning content 2A, 2B,
2C and 2D are window ICs and IDs.

1A and 1B respectively, while the magnetic track 2a
, 2b, 2c and 2d are aligned with the movement trajectories of the reproducing heads 4c, 4d, 4a and 4b, respectively, as shown in FIG. 6, and contact terminals 6a, 6b.

6c, 6d and terminal pieces 5a, 5b, 5c, 5d and 5e
The device is ready for operation by touching the windows I and I respectively.
When any one of A, IB, IC, and 1D is pressed with a finger, the sound corresponding to the learning content appearing in that window is correctly reproduced, as is clear from the above operation description.

The above explanation is based on the case where the principle of the present invention is configured as a playback-only device, but instead of the playback head group, a recording/playback head group and an erase head group are attached to the turntable 3, and a microphone plug is inserted into jack 1d. At the same time, if the playback circuit is switched to a recording circuit (not shown), this device can also be used as a recording device.

As mentioned above, according to the present invention, once the learning card is loaded, it can be operated repeatedly very easily, safely and reliably, so it is ideal for early childhood education, and has a higher learning effect than conventional devices of this type. can be further improved.

Furthermore, even if the learning card is loaded upside down, horizontally and vertically, the sound corresponding to the learning content that appears will be correctly reproduced, making it extremely convenient and suitable for use in early childhood education.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the magnetic recording and reproducing device according to the present invention and a learning card used therein, and Fig. 2 shows the back side of the learning card shown in Fig. 1 and related playback. FIG. 3 is a plan view showing the arrangement of the turntable and playback head of the above embodiment, and FIG.
The figure is a sectional view showing the structure of the turntable and playback head of the above embodiment, Figure 5 is a wiring diagram showing an example of the electric circuit of the above embodiment, and Figure 6 is the back of the learning card shown in Figure 1. FIG. 3 is an explanatory diagram showing another relative arrangement of the playback head related thereto. 1... Main body case, 1a... Power switch, 1b.
...Card slot, 1d...Earphone jack, 1
Person IB, IC, ID...window, 2...learning card,
2 people 2B, 2C, 2D, ・Learning content, 2a, 2
b, 2c2d...Magnetic track, 3...Turntable, 4a4b, 4c, 4d...Reproduction head, 5
...Rotating terminal, 6...Fixed terminal, T...Switch push plate, 8...Normally closed switch, 9a, 9b,
9 c, 9 d... normally open type switch, 10a, 10
b, 10c, 10d - operation holding device, 11... selection device, 12... motor rotation holding device, 13... motor, 14... equalizer amplifier, 15... power amplifier, 16... Speaker 17...headphones.

Claims (1)

[Scope of utility model registration request] In a magnetic recording and reproducing device capable of recording or reproducing audio corresponding to a plurality of independent learning contents divided and written on the surface of one set card, the learning contents are recorded at the central point of the card. 2n pieces (n is an integer) are placed around the card, and on the back of the card are two magnetic strips symmetrical about the center point along each circumference of n concentric circles centered on the center point. Each track is arranged, and on the main body side of the device, there are 2n windows in which the learning content should be aligned when the card is set, and 2n windows that are concentric with the center point of the card when it is set. It has 2n magnetic heads that are rotatably mounted and arranged symmetrically about the center point so that they can run simultaneously on each of the two magnetic tracks on the same circumference. A turntable, a track selection switch operated by the well-intentioned press, and a magnetic head interposed between each of the magnetic heads and the track selection switch and to be connected to the track selection switch. 1. A magnetic recording and reproducing device, comprising: a rotary terminal capable of switching magnetic heads to positions symmetrical to each other every 2 rotations.