JPS581915Y2 - Recorder Radio Recorder Recorder Recorder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting device for coupling a small cassette tape recorder to a car radio, and more particularly, to a mounting device for coupling an ultra-small cassette tape recorder to a mounting hole provided in a car radio. .

As is already well known, the cassette tape for small tape recorders developed by the present applicant is a very small cassette called a microcassette, which is packaged in a small pine box.

Therefore, the tape recorder that uses this is also extremely small and is designed to fit comfortably into a shirt pocket.

However, when a tape recorder is constructed in such an extremely small size, its built-in amplifier and speakers are also small, making it impossible to reproduce good sound quality.

Therefore, a technical means has been considered to connect this ultra-small cassette tape recorder to a radio etc. and use its amplifier and speakers to obtain reproduced sound of excellent sound quality, and various proposals have been made regarding this method. ing.

However, when this ultra-compact cassette tape recorder is connected to a car radio, the recorder must be operated with one hand while driving, making operation difficult.
It's inconvenient.

If it were possible to automatically put the recorder into operation in conjunction with the coupling action of the recorder, it would be extremely convenient to use the recorder even while driving a car.

The purpose of this invention is to connect a small tape recorder to a car radio, in which the tape recorder is automatically activated simply by inserting the cassette tape recorder into the mounting hole for the small cassette tape recorder provided in the car radio. To provide a mounting device.

The present invention will be explained below with reference to an illustrated embodiment.

FIG. 1 is a perspective view of an automobile radio 1 to which the present invention is applied. A mounting hole 2 for connecting an ultra-small cassette tape recorder 3 is provided at the lower left portion of the front surface of the automobile radio 1.

As the tape recorder 3 inserted into this mounting hole 2, the above-mentioned micro cassette tape recorder is used.

As shown in FIG. 2, this tape recorder 3 has guide grooves 3e for coupling on both left and right sides of the main body of the recorder 3.
As shown in FIG. 3, the inner left and right walls of the mounting hole 2 are provided with convex strips 2e that fit into the guide grooves 3e.
is provided.

On the back wall surface 2B in the mounting hole 2, there is a power supply connection terminal 5a drawn out from the radio's electrical circuit for connecting the radio's electrical circuit and the tape recorder's electrical circuit, and a connection for transmitting and receiving electrical signals. Terminal groups 5b to 5d are provided, and come into contact with connecting terminals 2a to 2d, which are provided on the bottom of the outer surface of the tape recorder 3 to be mounted and are drawn out from the electrical circuit of the tape recorder. There is.

The main components of the electrical circuits of the automobile radio 1 and tape recorder 3 are constructed as shown in FIG.

The upper part separated by a dashed line is an electric circuit diagram of a car radio 1, and the lower part is an electric circuit diagram of a tape recorder 3.

Its configuration is well known, and the electric circuit of the radio includes a tuner and detection circuit 33 that receives and detects desired broadcast waves, and an output signal of this circuit 33 is applied through a changeover switch 37. Amplifying circuit 34 a > 34 b that amplifies the width, and a speaker 3 that outputs the output of the amplifying circuit 34 b via the earphone jack 38
It consists of 5.

The electric circuit of the tape recorder includes a magnetic head 23 for recording and playback, amplifiers 24 and 25, a speaker 26, a built-in microphone 27, and a jack 2 for connecting an external microphone.
It consists of 8 mag.

In the recording state, the changeover switches 81 to S5 are switched to the fixed contacts S, a''s5a.

Therefore, the external microphone (
(not shown) or when there is a recording input signal to the built-in microphone 21, the signal is transmitted to the fixed contacts S, a of the switch S1.
The signal is applied to amplifier 24 through amplifier 24.
25, and is applied to the magnetic head 23 through the fixed contact S3a of the switch S3 to be recorded on a tape.

In the case of reproduction, the tape reproduction output signal of the magnetic head 23 is applied to the amplifier 24 by switching the changeover switches 81 to S5 to the other fixed contacts s and b-s5b.
The playback output signal amplified by the amplifier 25 is output to the speaker 2.
It is output from 6.

The built-in power supply 30 is normally connected to the electrical circuit configured in this manner via the main switch S through the terminal 2f.

The main switch S is opened and closed in conjunction with the recording/playback operation button 13 of the tape recorder 3 (see FIGS. 2 and 3).

The connection terminal groups 5a to 5d are connected to the electric circuit of the radio 1 and tape recorder 3 configured in this way.
, 2a to 2d are connected as follows.

That is, the power supply connection terminal 5a is connected to the power supply E of the radio 1 via the constant voltage circuit 31, and the power supply connection terminal 5a is connected to the power supply E of the radio 1 via the constant voltage circuit 31.
When the terminals 5a and 2a are connected, they serve to connect the power source E to the electric circuit of the tape recorder 3 through the terminals 5a and 2a.

This is because the power supply E of the radio 1 has a larger capacity, and when the tape recorder 3 is used alone, the built-in power supply 30 of the recorder is of course used.

The terminal 5b is connected to the output end of the amplifier circuit 34a through a resistor 32 and a capacitor 36, and the terminal 5c is connected to the fixed terminal 37a of the changeover switch 37 through a resistor 39.
is bordered by

This selector switch 37 is switched to the fixed terminal 37a when the tape recorder 3 is connected, and is switched to the fixed terminal 37b when the radio 1 is in operation.

The terminal 5d is grounded.

On the other hand, the power supply connection terminal 2a next to the tape recorder 3 is formed by a connection plug, and when it is connected to the power supply connection terminal 5a, the built-in power supply 30 is turned off and the radio power supply E is connected to the tape recorder's electrical circuit. It is designed to connect to.

Further, the terminal 2b is connected to the output end of the microphone 27, and the terminal 2c is connected to the fixed terminal S5b of the changeover switch S5.

Further, the terminal 2d is grounded.

As shown in FIG. 3, an intermediate lever 4 having a support shaft 4b as a stationary member is located slightly outside the wall surface 2B at the back of the mounting hole 2.

Due to the behavior of the coil spring 4a wound around the support shaft 4b, the intermediate lever 4 is normally in a state of being rotated clockwise around the support shaft 4b.

As shown in FIG. 4, there is a slit 5 on the back wall 2B of the mounting hole 2 through which one end of the intermediary lever 4 can pass, and one end 4c of the intermediary lever 4 passes through this slit and projects into the mounting hole 2. .

The other end of the intermediate lever 4 has a guide elongated hole 6 into which a pin 8 fixed to one end of the operating member 7 is fitted.

As shown in FIG. 4, this operating member 7 has an elongated plate shape and is disposed on the lateral outer side of the mounting hole 2, and the operating member 7 slides by fitting into pins 9 and 10 fixed to an immovable member on the cross section thereof. Guide slot 11
, 12 are provided.

A pushing part 7a is attached to the other end of the operating member 7, which pushes the recording/playback operating button 13 of the tape recorder 3 during operation.

Triangular notch 13 for clicking on the lower edge of the operating member 7
a, 13b are provided, in which a ball 14 fits into a hole 15 provided in a stationary member along the lower edge of the operating member 7, and when the operating member 7 slides, a click notch 13a is formed.
Or, when 13b comes above the hole 15, a click action is performed to stop the operating member 7.

The operation of the embodiment configured as described above will be explained.

Insert the tape recorder 3 into the tape recorder mounting hole 2 of the car radio 1.

At this time, the guide grooves 3e on both left and right side surfaces of the main body of the tape recorder 3 are inserted into the convex strips 2e provided on the left and right side walls inside the mounting hole 2.

As the tape recorder 3 is gradually inserted, the outer surface 2 of the tape recorder 3
A person hits one end 4C of the intermediary lever 4 protruding into the mounting hole 2 and presses it.

The intermediate lever 4 rotates counterclockwise against the elasticity of the coil spring 4a, and this rotation is caused by the outer surface 2 of the tape recorder 3.
The process ends when the person reaches the back wall 2B of the mounting hole 2, and the connection terminals 23-2d on the two outer surfaces connect to the connection terminals 53-5d on the back wall 2B of the mounting hole, respectively.

From this point on, as shown in FIG. 4, as the intermediary lever 4 rotates counterclockwise, the pin 8 fitted in the guide elongated hole 6 of the intermediary lever 4 moves to the right along the elongated hole 6, and at the same time, the pin 8 is moved to the right according to the elongated hole 6. The fixed operating member 7 of 8 also moves to the right.

At this time, the elongated holes 11, 12 provided in the operating member 7 move to the right according to the pins 9, 10 fixed to the stationary member.

In addition, the triangular notch 13b provided in the operating member 7 has
It has a click action with the ball 14 in the hole 15 provided in the stationary member that is in contact with the operating member 7, but when the operating member 7 moves and the tape recorder 3 finishes entering the mounting hole 2, the button clicks. , the ball 14 fits into the other triangular notch 13a of the contact member 7 and stops the movement of the operating member.

At the same time, the recording/playback operation button pushing part 7a attached to the other end of the operating member 7 pushes the recording/playback button 13 of the tape recorder 3, thereby putting the tape recorder into a playback state.

As shown in the electrical circuit diagram of FIG. 5, the tape recorder 3 is in the playback state, that is, the switches S,
4b, the main switch S is turned on by pressing the recording/playback operation button 13, and the audio signal from the tape 40 is sent to the switch SIb, the amplifier 24, and the switch S4b.
, enters the radio system terminal 5c from the contact terminal 2C,
The signal will flow from the speaker 35 via the switch 37 and amplifiers 34a and 34b.

In this way, the present invention allows the tape recorder to be activated automatically in conjunction with this operation by simply inserting a small cassette tape recorder into the installation hole of the car radio and connecting it, so that it can be used while driving the car. However, it is possible to provide a practical and simple device that can easily use a tape recorder.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of how a car radio and an ultra-small cassette tape recorder are connected, FIG. 2 is a perspective view of an ultra-small tape recorder inserted into a mounting hole of the car radio, and FIG. Plan view of a state in which an ultra-compact cassette tape recorder is installed in the installation hole of a car radio, No. 4
The figure is a perspective view of a mounting device for connecting a small cassette tape recorder to an automobile radio, showing an embodiment of the present invention, and FIG. 5 is an electrical circuit diagram of the automobile radio and tape recorder. 1...Mountain vehicle radio, 2...Tape recorder mounting hole, 3...Tape recorder, 4...
...Intermediate lever, 7...Operation member, 13
・・・・・・Operation button for tape recorder recording and playback.

Claims (1)

[Scope of Claim for Utility Model Registration] A small cassette tape recorder is connected to a car radio, in which operation buttons for recording and playback are arranged in sequence on the tape recorder, and the buttons are operated by sliding on the same side. The device includes a mounting hole for the tape recorder provided in a car radio, and an intermediary whose one end is disposed within the mounting hole and is pushed and swung by the tape recorder when the tape recorder is mounted. It is disposed near the lever and the tape recorder mounting hole so that it can move in the same direction as the tape recorder's in/out direction, and its rear end is connected to the other end of the intermediary lever, and the tape is attached to the tip. an operating member provided with an operation button pushing part for recording and playing back the recorder; A mounting device for coupling a small cassette tape recorder to a car radio, which moves in the opposite direction and pushes a recording/playback operation button of the tape recorder to an operating position using the operation button pushing part.