JP2001105989A - Conversation auxiliary device in cabin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity by storing speakers and microphones in the same modules. SOLUTION: Thin speakers 21, 22 having specific directivity are fixed to the side plates 20b, 20c of a roof lining 20 near rear seats, and microphones 23, 24 having specific directivity are suspended and fixed by a fixing jig 50 to the intermediate plate 20a of the roof lining 20 near front seats. The speakers 21, 22 and the microphones 23, 24 are arranged nearly on the same plane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interior conversation assistance device having a speaker and a microphone disposed in a vehicle interior of a vehicle.

[0002]

[Related Background Art] Conventionally, this kind of conversation assistance device has
In some vehicles, such as automobiles, a speaker is disposed on a roof lining near a rear seat of a vehicle, and a microphone is disposed on an A pillar, a steering wheel, an instrument panel, or the like near a driver's seat. And
The conversation of the driver and the like was collected by the microphone, and loudspeakers were used to make it easier for passengers in the rear seats to hear.

[0003]

However, in recent years, components of automobiles have been modularized, and the roof lining has been manufactured as one module. For this reason, it has come to be desired that the vehicle interior conversation assistance device be housed in a single module such as a roof lining in order to improve productivity.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide a vehicle interior conversation assistance device capable of improving productivity by storing a speaker and a microphone in the same module. Another object of the present invention is to provide a vehicle interior conversation assistance device that prevents mechanical vibration from a speaker from being transmitted to a microphone.

[0005]

In order to achieve the above object, the present invention provides a vehicle interior conversation assisting device in which a microphone is disposed on a roof module which is a roof lining having a module configuration substantially flush with a speaker. Is done. That is, by disposing the microphone on the same surface of the roof module, which is the same member as the member on which the speaker is disposed, it is difficult for the microphone to collect sound waves output from the speaker.

According to the second aspect of the present invention, the microphone is spaced apart from the roof module on which the speakers are disposed and is disposed on substantially the same plane as the position where the speakers are disposed. Make sure that vibrations are not transmitted to the microphone.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a vehicle interior conversation assistance device according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing a schematic configuration of a vehicle interior conversation assistance device according to the present invention mounted on a vehicle. In the figure, a roof lining 20 having a module configuration, which is a roof module of the present invention, is supported on, for example, a vehicle body 11 on a ceiling portion of a vehicle 10.

As shown in the perspective view of the first embodiment in FIG. 2, the roof lining 20 includes, for example, a middle plate 20a and a side plate 20.
It is formed in a U-shaped long body having b and 20c. Speakers 21 and 22 are fixed to the side plates 20b and 20c of the roof lining 20 near the rear seat, respectively, and microphones 23 and 24 are respectively suspended from the middle plate 20a of the roof lining 20 near the front seat. Is fixed by the fixing jig 50 as described above.
The speakers 21 and 22 and the microphones 23 and 24
Are arranged on substantially the same plane of the roof lining 20, respectively. Note that the speakers 21 and 22 can be fixed by fitting the roof lining 20 into a cutout portion cut out in the shape of the speaker.

The speakers 21 and 22 are thin loudspeakers having a specific directivity so that sound waves from the speaker can easily reach an occupant seated in the rear seat, and sound waves hardly reach the same plane. It is connected to a power amplifier unit 25 mounted on the upper part. The microphones 23 and 24 have good responsiveness to sound waves from the front, for example, voices of an occupant sitting in the front seat,
In addition, a microphone having a specific directivity is connected to a microphone amplifier unit 26 mounted on the roof lining 20 so that the response to a sound wave from the same plane, for example, a sound wave from the speaker is not good. .

The power amplifier unit 25 and the microphone amplifier unit 26 are connected by a cable 27 including a signal line and a power supply line (not shown).
Is a power supply line 30 from outside via connectors 28 and 29.
To supply power to the power amplifier unit 25 and the microphone amplifier unit 26. By this power supply, the power amplifier unit 25 and the microphone amplifier unit 26 operate. Then, the microphone amplifier unit 26
Converts the sound waves input from the microphones 23 and 24 into electric energy, amplifies the electric energy, and outputs the electric energy to the power amplifier unit 25 via the cable 27. Then, the power amplifier unit 25 amplifies the input electric energy and outputs the amplified electric energy to the speakers 21 and 22. Speaker 2
1 and 22 convert the electric energy into acoustic energy, for example, voice and output it.

As described above, according to the present embodiment, the speaker and the microphone can be mounted on the roof lining, which is the same module, and can be housed on substantially the same plane, so that the productivity can be improved and the conversation assistance device of the vehicle interior can be improved. Installation on the vehicle body is also facilitated. In the present embodiment, as shown in FIG.
It is also possible to connect the switch volume 31 for adjusting the sound volume of the speaker 2 to the roof lining 20 near the front seat and / or near the rear seat.
The occupant can adjust the energy amount (volume) of the acoustic energy output from the occupants 1 and 22. Also,
The audio signal line 32 is connected to the power amplifier unit 25, and the audio signal line 32 is connected to the connector 3
By connecting to an external audio signal line 35 via the signal lines 3 and 34, the signal input from the signal line 35 can be output from the speakers 21 and 22. It can also be used for audio and audio.

FIG. 3 is a perspective view showing the configuration of a second embodiment of a conversation assist device in a vehicle compartment according to the present invention. In the drawings, the same components as those in the first embodiment are denoted by the same reference numerals for convenience of explanation. In this embodiment, in addition to the configuration of the first embodiment, the microphone 36 and the microphone 36 are attached to the middle plate 20a of the roof lining 20 near the rear seat so that the occupant of the front seat and the occupant of the rear seat can have good conversation between each other. 37
And the roof lining 2 near the front seat
Speakers 38 and 39 were disposed on the side plates 20b and 20c of the No. 0, respectively.

By the way, in this embodiment, the speaker and the microphone are arranged on the roof lining 20 near each seat, so that the mechanical vibration due to the sound wave from the speaker is transmitted to the microphone via the roof lining 20, and howling occurs. There are cases. Therefore, in this embodiment, as shown in FIG. 4, an opening 40 is provided at a predetermined position of the middle plate 20a of the roof lining 20, and the opening 40 is provided.
Is shielded by a protection net 41, and the vehicle body 11 above it is shielded.
A microphone is placed at Since the method of fixing each microphone is the same, the method of fixing the microphone 23 will be described with reference to FIGS. 4 and 5 as a representative. Here, FIGS. 4A and 5A are front views, and FIG.
5B and FIG. 5B are side views.

4 and 5, the roof lining 2
For example, crocodile-type engaging members 51 and 52 are disposed and fixed to the vehicle body 11 above the opening 40 of the “0”, and the microphone 23 is attached to the engaging jig 53 by being suspended. . The engagement jig 53 includes an engagement member 51,
52 and is configured to be engageable with each other, as shown in FIG.
The microphone 23 is fixed on the opening 40 by engaging the engagement jig 53 so as to be detachably fitted to the engagement members 51 and 52.

As described above, in this embodiment, the microphone can be fixed to the vehicle body so as to be suspended from the vehicle body, and can be separated from the roof lining where the speaker is provided. The signal is not transmitted to the microphone, and howling can be prevented. In the present invention, a microphone can be fixed to the vehicle body using a fixing jig instead of the engaging member and the engaging jig.

In the present invention, as shown in FIGS. 6 and 7 for explaining the method of fixing the microphone, a vibration-proof rubber 42 is attached between the middle plate 20a of the roof lining 20 and the protection net 41. It is also possible to adhere the microphone 23 to the protection net 41 and fix it. In this case, the mechanical vibration from the loudspeaker can be prevented by the anti-vibration rubber and is not transmitted to the microphone, so that howling can be prevented as in the second embodiment.

The present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, instead of the microphone fixing method shown in the first embodiment, the microphone of the first embodiment can be fixed by the fixing method shown in the second embodiment or FIGS.

[0018]

As described above, according to the present invention, a speaker is provided on a roof module disposed in a vehicle compartment of a vehicle, and the microphone is used in a vehicle interior conversation assistance device for amplifying sound waves from the microphone. Since the loudspeaker and the microphone are arranged on the roof module substantially on the same surface as the loudspeaker, the loudspeaker and the microphone can be housed in the same module to improve productivity.

According to a second aspect of the present invention, a speaker is provided in a roof module disposed in a vehicle interior of a vehicle, and the microphone is separated from the roof module by a vehicle interior conversation assistance device for loudspeaking a sound wave from a microphone; In addition, since the speaker is disposed on substantially the same plane as the position where the speaker is disposed, mechanical vibration of the speaker can be prevented from being transmitted to the microphone.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of a vehicle interior conversation assistance device according to the present invention.

FIG. 2 is a perspective view showing a configuration of a first embodiment of a vehicle interior conversation assistance device according to the present invention.

FIG. 3 is a perspective view showing the configuration of the second embodiment.

FIG. 4 is a diagram illustrating a method for fixing the microphone.
FIG. 4 is a cross-sectional view near the opening shown in FIG.

FIG. 5 is a cross-sectional view of the vicinity of the opening.

FIG. 6 is a perspective view of the vicinity of an opening when a vibration-proof rubber is used.

FIG. 7 is a cross-sectional view near the opening shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Vehicle 11 Vehicle body 20 Roof lining 21, 22, 38, 39 Speaker 23, 24, 36, 37 Microphone 25 Power amplifier unit 26 Microphone amplifier unit 27 Cable 28, 29, 33, 34 Connector 40 Opening 41 Protection net 50 Fixed Jigs 51, 52 Engaging member 53 Engaging jig

Claims (4)

[Claims] 1. A vehicle interior conversation assistance device for arranging a speaker in a roof module arranged in a vehicle interior of a vehicle and loudspeaking a sound wave from a microphone, wherein the microphone is mounted on the roof substantially in the same plane as the speaker. An in-vehicle conversation assistance device, which is provided in a module. 2. A vehicle interior conversation assistance device for arranging a speaker in a roof module arranged in a vehicle interior of a vehicle and loudspeaking a sound wave from a microphone, wherein the microphone is separated from the roof module.
A vehicle interior conversation assistance device, which is disposed on substantially the same plane as a position where the speaker is disposed. 3. The conversation assistance device according to claim 2, wherein the microphone is disposed on a support member that supports the roof module. 4. The roof module has an opening provided at a predetermined position, a protection net is provided in the opening via a vibration isolating member, and the microphone is disposed on the protection net. The vehicle interior conversation assistance device according to claim 2, wherein the vehicle interior conversation assistance device is provided.