JPH10308807A - Handsfree device for portable radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable communication in case a user does not want the contents of a speech to be heard by other persons by providing an output changeover switch so that an output from a speaker can be turned off and switched to a sound output on the side of a portable radio equipment even while a connector is still connected with the portable radio equipment. SOLUTION: A switcher 13 of an output changeover switch 10 directly provided on a circuit board 11 switches an internal contact by pressing an operator 13a for each action of push-button manipulator 14. Through this contact switching, an operating mode as a handsfree device 50 or a preferential mode of a portable radio equipment with the handsfree device 50 connected can be switched. Namely, when the push-button manipulator 14 is pressed once, the handsfree speech is provided by effectively utilizing a speaker 7 and a microphone 5 of the handsfree device 50, and when the push-button manipulator 14 is pressed once more, at least the output from the speaker 7 of the handsfree device 50 is suppressed and the speaker of the portable radio equipment is activated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hands-free device for a portable radio. Note that the portable wireless device is mainly a mobile phone or an automobile phone, etc.
In some cases, a PHS, a cordless telephone, or the like may be included.

[0002]

2. Description of the Related Art Recently, in order to use a portable radio while driving a car, a hands-free device having a microphone (sound collecting function) and a speaker (loudspeaking function) is connected to the portable radio. Things are starting to happen. The hands-free device generally includes a device main body in which a circuit board, a microphone, a speaker, and the like are built in, and an external power supply that is provided to protrude outside the device main body in a rod shape and can be inserted into a cigarette lighter socket or the like of an automobile. It has an intake section and a connector for the portable wireless device provided via a cord extending from the apparatus main body (see Japanese Utility Model Registration No. 30334384).

[0003] In a hands-free device, the voice of the other party is largely transmitted to the surroundings through a speaker. Therefore, if there is another person nearby besides the person who is talking, the other person naturally has a conversation. The contents will be understood. However, depending on the content of the conversation, it is natural that one does not want to be heard by others. Conventionally, in such a situation, the portable wireless device itself usually has a structure in which a speaker or a microphone of the portable wireless device does not recover unless a connection tool of the hands-free device is removed. However,
Some portable wireless devices are equipped with a priority switch that forcibly prioritizes the function of the portable wireless device even when connected to a hands-free device, etc. Thus, a call can be made using the speaker or the microphone on the portable wireless device side.

[0004]

In the case of a portable telephone without a priority switch, it is almost impossible to remove the connecting device of the hands-free device from the portable telephone while driving a car or the like. It was not possible to quickly respond to the case where the user did not want to hear the contents of the call.

[0005] Even in the case of a mobile phone having a priority switch, the act of searching for and operating the priority switch from an operation surface having many buttons and switches in addition to the priority switch also occurs during driving of an automobile. It was very difficult. In particular, it must be said that it is almost impossible at night or the like. On the other hand, in this type of hands-free device, a microphone and a speaker are provided side by side in the device main body. There is a drawback that howling occurs between them.

[0006] In addition, the device body of the hands-free device is:
The installation state is established by inserting the external power supply unit into the cigarette lighter socket of the car, etc., but in this case, if the external power supply unit and the device main body have a fixed structure, depending on the type of car, the device main body may be There is a disadvantage that it is not possible to achieve an optimal posture. However, if the external power supply unit and the apparatus main body are made to have a movable structure by a hinge or the like, a positional shift may occur between the two parts due to running vibration or the like, and as a result, the apparatus main body may not be able to be maintained in an optimum posture. Was.

[0007] Further, the external power supply receiving portion may be rattled due to running vibration or the like with respect to the cigarette lighter socket or the like, which may cause a positional shift of the apparatus main body or noise. There was something.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hands-free device for a portable wireless device that can eliminate or eliminate the above-mentioned various problems.

[0008]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, in the hands-free device for a portable wireless device according to the present invention, even when the connector is connected to the portable wireless device, the output from the speaker is turned off to the sound output on the portable wireless device side with respect to the circuit board. An output changeover switch for enabling the changeover is provided.

The output changeover switch is functionally similar to a priority switch provided in some portable radios in the past, but this output changeover switch is replaced by various buttons and switches. In the sense that it is provided on the hands-free device side, not on the portable wireless device side provided with, this leads to the advantage of making the operation easy and reliable even in the case of a short notice.

[0010] Therefore, it is possible to cope with a situation in which another person does not want to hear the contents of the call. In this output changeover switch, a push button operating tool that is made of a transparent material and is operably held by a switch, a switch tool that is switched for each operation of the push button operating tool, and a push button operating tool regardless of the operation state of the push button operating tool It is preferable to adopt a structure having a light emitting tool that can emit light to the operating tool.

That is, since the light from the light emitting device is emitted from the upper end through the transparent push button operating tool, a viewer can immediately find the location of the push button operating tool (ie, the output changeover switch). Will be able to Therefore, operability can be obtained even at night or the like. Further, this output changeover switch can be used also for other status display, and there is an advantage that the structure can be simplified accordingly.

[0012] In order to be able to freely set the installation position of the portable wireless device, the connecting device for connecting the hands-free device to the portable wireless device is connected to at least an external power supply unit or a speaker via an external cord. To be provided. And, in this case, if a microphone is provided near the connection device, that is, on the extension end side of the external cord, the microphone is inevitably closer to the portable wireless device, that is, closer to the mouth of the person who talks, It makes it easier to pick up your voice. In addition, there is an advantage that the microphone is separated from the speaker and howling is prevented from occurring.

In the case where the external power supply intake section is provided so as to be swingable with respect to the apparatus main body, if the swinging operation is performed by a jagged tooth engagement structure, the apparatus main body with the swing angle adjusted. As the holding posture, the position is not shifted due to the running vibration of the automobile or the like, which is preferable. By providing a pair of anti-swinging pieces that can exert urging force on both sides in the radial direction with respect to the inner surface of the socket to be inserted into the external power supply intake section, an effect of preventing displacement of the automobile against running vibration and the like is provided. Is more preferably obtained.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a hands-free device 50 according to the present invention includes a device body 5 in which an upper body 1 and a lower body 2 form a flat egg-shaped flat case body.
An external power supply inlet 3 protruding in the shape of a round bar is provided at one end of the device 1, and a microphone 5 and a connector 6 are provided at the other end thereof via an external cord 4.

A speaker 7 is provided on the back side of the upper body 1 of the apparatus main body 51, and a sound is output through a groove-shaped sound hole 8. Also, a circuit board 1 having an amplifier circuit, a charging circuit, and the like provided with a volume 9 and the like is formed inside the lower body 2.
1 is provided, and an output changeover switch 10 is provided directly to the circuit board 11. The output changeover switch 10 has a light emitting device 12 and a switch device 13 provided adjacent to each other on a circuit board 11, and moves up and down (switch operation) above the light emitting device 12 and the switch device 13. ) Freely provided push button operation tool 14
have.

The push button operating tool 14 is formed of a transparent material such as plastic or glass, and has a sliding shaft 22 fitted to a sliding guide cylinder 21 provided on the back surface of the upper body 1.
And a transmission shaft 23 projecting toward the switch 13 at a position shifted from the sliding shaft 22 toward the axis. A recess 24 is formed at the lower end of the sliding shaft 22 to prevent interference with the light emitting device 12 when the push button operating tool 14 is pressed.
2 light is received.

An axial groove 21a is formed in the sliding guide cylinder 21 of the upper body 1, and a projection 22a that fits into the groove 21a is provided in the sliding shaft 22 of the push button operating tool 14. The push button operating tool 14 is stopped during operation. Needless to say, the inside of the upper body 1 corresponding to the sliding guide cylinder 21 is opened as a button hole. Then, the sliding shaft 22 of the push button operating tool 14 projects from this opening by a predetermined amount.

The switch device 13 is configured such that the operator 13a is pressed each time one operation of the push button operating device 14 is performed to switch the internal contact. By switching the contact, the operation mode of the hands-free device 50 is determined. Hands-free device 5
It is possible to switch between the preferential use mode of the portable wireless device 52 (see FIG. 5) while the 0 is connected. That is, when the push-button operating tool 14 is pressed once, the speaker 7 and the microphone 5 of the hands-free device 50 are utilized, and a hands-free call can be made. When the push-button operating tool 14 is pressed again, the hands-free operation is performed. At least the output from the speaker 7 in the device 50 is turned off, and the speaker of the portable wireless device 52 is restored (a state in which a call can be made by the portable wireless device 52).

The light emitting device 12 is capable of emitting light to the push button operating device 14 irrespective of the operation state of the push button operating device 14 (whether or not it is pressed). Although the content of the light projection is not particularly limited, in the present embodiment, the content of displaying whether or not the battery provided in the portable wireless device 52 is being charged is displayed. That is, red light is emitted during charging, and green light is emitted when charging is completed. Further, when the push button operating tool 14 is pressed and the operation mode of the hands-free device 50 is set, the red light emission and the green light emission alternately blink.

The light emitting device 12 allows the power supply O
Of course, it is also possible to display N.OFF (whether or not the ignition of the vehicle is turned on) or to display the mode switching state. Switching of these displays is not only performed by changing the emission color, but also
It may be performed by switching between a light emitting state and a light extinguishing state.

In the external power supply intake section 3, a root portion 31 directed to the apparatus main body 51 is formed in a vertically flat shape, and a rear end surface thereof is formed in an arc shape and provided with a knurled tooth 32. . Also, this root portion 31
On both left and right side surfaces of the front end, a short columnar swing shaft 33 which is concentric with the arc of the rear end surface is protrudingly provided. A pair of cathode contacts 34 project radially outward from opposing portions on the outer peripheral surface near the end of the external power supply intake section 3, and each cathode contact 34 is 90 ° apart from each other. A pair of swing stoppers 35 are provided from the displaced portions. An anode contact 36 is provided at the tip.

Cathode contact 34 and anode contact 36
Needless to say, as shown in FIG. 4, a socket terminal 37 such as a cigarette lighter socket provided in an automobile is provided with a cathode terminal and an anode terminal (both not shown) inside the socket member 37.
Is a part that is brought into contact with and electrically conducted. Anti-swing piece 35
Is formed by cutting and raising a part of the outer wall of the external power supply unit 3 so as to have elasticity, or provided by attaching a leaf spring.
The urging force can be exerted on both inner sides of the inner surface 7 in the radial direction.

As a result, rattling of the external power supply unit 3 with respect to the socket member 37 can be prevented. On the other hand, when the external power supply unit 3 is swingably held, the upper body 1 and the lower body 2 of the apparatus main body 51 are provided with cutout recesses 40 capable of storing the base 31 of the external power supply unit 3. A bearing piece 41 for vertically holding the oscillating shaft 33 is provided on both left and right sides of the recess 40.
42 are provided.

Further, an elastic engagement piece 43 is provided at the back of the concave portion 40 so as to hang down from the back surface of the upper body 1. The resilient engagement piece 43 is formed with a claw 1a that engages with the knurled tooth 32 provided on the rear surface of the root portion 31. For this reason, the external power supply unit 3 and the apparatus main body 51 can perform a swinging operation while maintaining the engagement state of the teeth 32 and the claws 1a with each other, and are adjusted to a desired angle. Is held.

The hands-free device 50 having such a configuration
As shown in FIG. 4, the external power supply unit 3 is inserted into a socket 37 such as a cigarette lighter socket of an automobile, and the swing angle of the apparatus body 51 with respect to the external power supply unit 3 is adjusted. It is only necessary to connect the connection tool 6 to the portable wireless device 52 as shown. In FIG. 4,
A holder 54 (with the stand 55 removed) for the portable wireless device 52 is attached to the air blowing portion 53 of the air conditioner, and the connector 6 is inserted and held in a cord hook portion 56 (see FIG. 5) provided in the holder 54. State (ie,
(A state in which the portable wireless device 52 is removed).

The state of use of the hands-free device 50 is determined by pressing the push button operating tool 14 (sliding shaft 22) of the output changeover switch 10 provided on the surface of the device main body 51 (upper body 1) as described above. It just needs to be set to. Incidentally, the present invention is not limited to the above embodiment. For example, the provision of the volume 9 and the provision of the charging circuit on the circuit board 11 are not limited.

The main body 51 of the apparatus can be disassembled into an upper body 1 and a lower body 2, and its shape, material and the like are not limited at all. This hands-free device 50 is not limited to use in a car, but can be used on a desk or outdoors. Therefore, the portable wireless device 52 can be applied to a PHS, a cordless telephone, or the like. Further, in this case, the shape of the external power supply unit 3 and the shape of the connector 6 may be appropriately changed according to the usage.

[0028]

As is apparent from the above description, in the hands-free device for a portable wireless device according to the present invention, an output changeover switch is provided so that even if the connecting tool is connected to the portable wireless device, the output from the speaker can be maintained. Since the output is turned off and the sound output can be switched to the sound output on the portable wireless device side, it is possible to cope with a situation in which another person does not want to hear the contents of the call.

The operation of the output switch is
Since there are few other buttons and switches, there is an advantage that even a quick operation can be performed easily and reliably. In this output changeover switch, if the push button operating tool made of a transparent material is configured to be illuminated by a light emitting device, the location of the output changeover switch can be more easily understood, and operability can be obtained especially at night. Further, this output changeover switch can be used also for other status display, and there is an advantage that the structure can be simplified accordingly.

When the microphone is provided near the connecting device, the microphone is inevitably closer to the portable wireless device, that is, closer to the mouth of the person who talks, making it easier to pick up the voice.
The microphone is separated from the speaker, which is also useful for preventing howling. When the external power supply inlet is provided on the main body of the apparatus via the toothed engagement structure, there is no positional deviation in the state where the angle is adjusted by the swing operation, and therefore, there is an advantage that the optimum use posture as the main body of the apparatus can be maintained for a long time. is there.

By providing a pair of anti-swing pieces in the external power supply intake portion, a pressing urging force can be exerted on both sides in the radial direction on the inner surface of the socket, and the effect of preventing displacement can be further enhanced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a hands-free device according to the present invention.

FIG. 2 is a perspective view of an assembled state corresponding to FIG.

FIG. 3 is a side sectional view corresponding to FIG. 2;

FIG. 4 is a perspective view showing a use state of the hands-free device according to the present invention.

FIG. 5 is a perspective view showing a situation in which a connection tool of the hands-free device is connected to a portable wireless device and the portable wireless device is held by a holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper body 2 Lower body 3 External power supply part 4 External cord 5 Microphone 6 Connector 7 Speaker 10 Output change-over switch 11 Circuit board 12 Light emission tool 13 Switch tool 14 Push button operation tool 32 Jagged teeth 35 Shake prevention piece 37 Socket tool 50 Hands free Apparatus 51 Apparatus main body 52 Portable radio

Claims (5)

[Claims] An external power supply intake section (3), a circuit board (1)
1) a hands-free device for a portable wireless device configured by connecting a microphone (5), a speaker (7), and a connector (6) to the portable wireless device (52) in a predetermined manner; 11) An output that enables the output from the speaker (7) to be switched to the sound output on the portable wireless device (52) side even when the connector (6) is connected to the portable wireless device (52). A hands-free device for a portable radio, comprising a changeover switch (10). 2. An output change-over switch (10) formed of a transparent material and held so as to be capable of operating as a switch, and a switch which is switched for each operation of the push-button operater (14). Tool (13) and the push-button operating tool (14) irrespective of the operating state of the push-button operating tool (14)
2. A hands-free device for a portable wireless device according to claim 1, further comprising: a light emitting device (12) capable of projecting light to said light emitting device. 3. An external power supply intake section (3), a circuit board (1)
1) A hand-free device for a portable wireless device configured by connecting a microphone (5), a speaker (7), and a connector (6) to the portable wireless device (52) in a predetermined manner. 6) At least an external power supply unit (3)
And a speaker (7) provided via an external cord (4), and a microphone (5) provided near the connector (6). Hands-free device. 4. The external power supply unit (3) is provided to be swingable with respect to an apparatus main body (51) including a circuit board (11) and the like, and the swing operation is performed by the jagged teeth (3).
2) The hands-free device for a portable wireless device according to any one of claims 1 to 3, wherein the operation is performed by an engagement structure. 5. A pair of anti-swing pieces (35) capable of exerting urging force radially on both sides in the radial direction with respect to the inner surface of a socket (37) to be inserted into the external power supply inlet (3). 5. An electronic device according to claim 1, wherein:
A hands-free device for a portable wireless device according to any one of the above.