JPS581916Y2 - Radio cassette set - Google Patents

Description

[Detailed description of the invention] This invention is an ejector for a small cassette tape recorder connected to a car radio, more specifically, an ultra-small cassette tape recorder that is removably attached to a mounting hole provided in a car radio and connected to the radio. , relates to an ejector that can be taken out from the mounting hole simply by pressing an eject operation button.

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

Therefore, the tape recorder that uses this is also ultra-compact and has a size that can fit comfortably into a shirt pocket.

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

To this end, a technical means has been considered in which this ultra-compact cassette tape recorder is connected to a radio, etc., and its amplifier and speakers are used to obtain reproduced sound of excellent sound quality.
Various proposals have been made regarding this means.

However, when this ultra-compact cassette tape recorder is connected to a car radio, the user must operate the recorder with one hand while driving the car, which is difficult and 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.

Therefore, we created a mounting hole in the car radio that allows a small tape recorder to be attached and detached, and by simply inserting the cassette tape recorder into this mounting hole and connecting it, the cassette tape recorder will automatically be activated in conjunction with this operation. The applicant is planning to separately propose a mounting device for connecting a small cassette tape recorder to a car radio.

The purpose of the present invention is to provide an ejector that utilizes the above-mentioned device and makes it even more convenient, by which a small cassette tape recorder attached to a car radio can be taken out from the mounting hole of the car radio with one touch. It is in.

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 front side of the automobile radio 1.

As described above, the ultra-compact tape recorder 3 developed by the present applicant is used as the tape recorder inserted into this mounting hole.

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, and as shown in FIG. A protruding strip 2e that fits into the guide groove 3e is provided.

A power supply connection terminal 5a and a group of connection terminals 5b to 5d for transmitting and receiving electrical signals are provided on the inner wall surface 2B of the mounting hole 2, and the connection terminals provided on the two outer surfaces of the tape recorder 3 to be inserted are provided. Connect with 2a to 2d.

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 in terms of radio systems, the radio audio signal detected by the detection circuit 33 is the switch 37b.

37C, is amplified by amplifiers 34a and 34b, and is output from the speaker 35.

Regarding the tape recorder system, there is 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.

The changeover switches 81 to S3 are switched to fixed contacts S1a to S3a in the recording state.

Therefore, when there is a recording input signal to the external microphone (not shown) connected to the jack 28 or the built-in microphone 27, the signal is applied to the amplifier 24 through the fixed contact S1a of the switch S1; 24.25
The signal is amplified in width and 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 S3 to the other fixed contacts 51b to 83b.
The reproduced output signal amplified by the amplifier and the amplifier 25 is output from the speaker 26.

A lifetime built-in power supply 30 is 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 button 13.

There are the following connection terminals that connect the electric circuits of the radio system and tape recorder system.

The output terminal 5b provided on the surface 2B at the back of the mounting hole 2 is used to apply a part of the audio signal from the radio in order to record it. These include an output terminal 5c for applying voltage to the system, a connecting connection terminal 5ds for connecting the output terminal of the built-in microphone 27 of the tape recorder 3, and a power supply terminal 5a for operating the tape recorder with an external power source.

On the other hand, as shown in FIG. 2, the tape recorder has connection terminals 2a to 2d arranged on the outer surface of the tape recorder 3, which correspond to the terminals 5a to 5d of the car radio 1 when inserted into the mounting hole 2. When the tape recorder 3 is inserted into the mounting hole 2, these terminals are connected to terminals 5a to 5d, respectively.
connected to.

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, the operating member 7 has an elongated plate shape and is disposed on the outer side of the mounting hole 2, and has guides on its surface that slide on pins 9 and 10 fixed to a stationary member. Long hole 11,1
2 is 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.

A triangular notch 13a for clicking is provided on the lower edge of the operating member 7.
, 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, the click notch 13a or 1
When 3b is above the hole 15, a click action is performed to stop the operating member 7.

As shown in FIGS. 3 and 4, there is an eject operation button 20 near the outside of the mounting hole 2.

This protrudes from the radio panel surface, and the other arm integrated with this serves as the eject operation member 21.

The eject operation member 21 has elongated holes 17a, 17b, and a pin 16a fixed to a stationary member.

16b is stuck.

One end 21a of the eject operation member 21 stands up parallel to the operation member 7 in an L-shape, and a long pin 1 is fixed in the center thereof.
8 fits into a long hole 19 provided in 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, guide grooves 3 on both left and right sides of the main body of the tape recorder 3 and convex strips 2eg provided on both left and right walls inside the mounting hole 2 are carefully inserted.

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 pushes 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 5a-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 operating member 7 fixed at 8 also moves to the right.

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

Further, the triangular notch 13b provided in the operating member 7 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 1 moves, When the tape recorder 3 has finished entering the mounting hole 2, the ball 14 fits into the other triangular notch 13a of the operating member 7 and clicks to stop the operating member 7 from moving.

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

The tape recorder 3 now starts playing.

As shown in the electrical circuit diagram of FIG. 5, the tape recorder 3 is in the playback state, that is, switches S1 to S4 are set to
, the main switch S is turned on by pressing the recording/playback operation button 13, and the audio signal from the tape 40 passes through the switches s and b, the amplifier 24, and the switch S4b, and is sent from the contact terminal 2C to the radio system. It enters the terminal 5c and passes through the switch 37, amplifiers 34a and 34b, and then the speaker 35.
The audio will be played from.

When deactivating the tape recorder 3, that is, when ejecting the tape recorder 3 from the mounting hole 2 of the car radio 1, which is the purpose of the present invention, when the tape recorder 3 is in the combined state as shown in Figs. When you press the operation button 20,
The eject operation member 21, which is integrated with the eject operation button 20, has elongated holes 1γa and 17b connected to the fixing pins 15a,
16b, it moves in the longitudinal direction of the operating member, and accordingly, the long pin 18 integrated with the eject operating member 21 also moves in the elongated hole 19 of the operating member 1, and when the tape recorder 3 is in the operating state, the long pin 18 moves in the longitudinal direction of the operating member. Pushing the upper end of the elongated hole 19 where the pin 18 is in contact, the ball 14, which had been fitted into the notch 13a of the operating member 7 and was performing a clicking action, is pressed into the hole 15, so that the operating member 7 also moves into the elongated holes 11, 12. The tape recorder recording/playback operation button pushing part 7a at the tip of the tape recorder 3 is removed from the recording/playback operation button 13 of the tape recorder 3, and is fitted into the fixing pin 8 at its upper end. Push up one end of the intermediate lever 4.

Therefore, since the intermediate lever 4 rotates clockwise around the support shaft 4b, the other end 4c of the intermediate lever 4 moves, and the mounting hole 2
Enter the mounting hole 2 through the slit 5 on the back wall 2B, press the two outer surfaces of the tape recorder 3 that are in contact with the back wall 2B of the mounting hole, and connect the connection terminals 2a of the two outer surfaces.
2d and the radio connection terminals 5a to 5d on the back wall 2B of the mounting hole 2 are disconnected, and the tape recorder 3 is pushed out of the mounting hole 2 and is completely ejected.

In this case, since the recording and reproducing operation button 13 of the tape recorder 3 remains pressed and is in the operating state, it is necessary to return it to the stopped state.

In this way, the present invention is a simple and practical device that connects a small cassette tape recorder to the mounting hole of a car radio, and allows the small cassette tape recorder to be extremely easily ejected from the car radio by simply pressing the eject button. It is possible to provide a device that

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of how a car radio and an ultra-compact cassette tape recorder are coupled, FIG. 2 is a perspective view of an ultra-compact tape recorder attached to and coupled to a car radio, and FIG. FIG. 4 is an enlarged perspective view of the ejector shown in FIG. 3, and FIG. It is an electrical circuit diagram. 1... Car radio, 2... Tape recorder mounting hole, 3... Tape recorder, 4
... Square hole lever 7 ... Operation member, 20
...Eject operation button.

Claims (1)

[Scope of utility model registration request] Insert a small cassette tape recorder with a recording/playback operation button located on the side of the tape recorder, which is operated by sliding along the same side, into the tape recorder installation hole provided in the car radio. When this happens, an operating member is moved in a direction opposite to the mounting direction of the tape recorder in conjunction with an intermediary lever that is pushed and swung by the tape recorder, and the operating member slides the recording/playback operation button. In a device for combining a car radio and a small cassette tape recorder, which automatically puts the mounted tape recorder into operation, an eject operation button for moving the operating member in the mounting direction of the tape recorder is inserted into the mounting hole. and when this operation button is pressed, the intermediate lever is swung through the operation member in a direction opposite to that when the recorder is mounted, and the tape recorder is pushed out of the mounting circle. Ejector of a small cassette tape recorder coupled to a car radio