JPWO2016042934A1 - Telephone equipment - Google Patents

Abstract

Problem: Call equipment that suppresses fluctuations in reflection due to differences in the installation environment of radiated sound output from speakers and eliminates instability in speaker volume when a user operates the device with his / her hand I will provide a. Means for Solving: In a telephone device comprising a telephone device main body, and a hanging metal fitting fixed to the rear side of the casing of the telephone device main body and having a mounting hole for attaching to another component, the telephone device main body includes: A speaker mounted toward the back side in the housing is provided, and a first slit hole for allowing sound emitted from the speaker to pass therethrough is provided on the back surface side of the housing. It is arrange | positioned so that a predetermined space | interval may be provided between this slit hole and it may be attached to the said housing | casing back side.

Description

  The present invention relates to a structure of a telephone device in which a speaker is mounted on the back side of a housing.

In Patent Document 1, in a mobile terminal incorporating a hands-free speaker, the volume of the front surface of the hands-free speaker is increased by moving a movable member disposed on the front surface of the hands-free speaker in order to increase the volume. Then, by increasing the volume of the air in front of the diaphragm to vibrate, increasing the volume when using hands-free, the turbidity of the sound due to white noise when the signal is electrically converted to a rectangular wave electrically, There has been disclosed a portable terminal with a hands-free speaker that amplifies the amplitude of a signal to a power supply voltage for driving a speaker and distorts the sound, thereby improving the negative effects of conversation.
In addition, the portable terminal of patent document 1 becomes a structure which incorporates a hands-free speaker in the back side of a housing | casing.

JP 2002-111826 A

FIG. 21 is a diagram showing an example of the appearance, attachment, and operation of a telephone device used in a conventional in-vehicle wireless communication device.
21A is a front view of the telephone equipment main body 100. FIG. (B) is a side view when the hook 200 of the telephone equipment is hooked and attached to the terminal mounting hook 301 at the top of the dashboard 300 of the automobile. (C) is a side view when the hanging bracket 200 of the telephone equipment is hooked and attached to the terminal mounting hook 301 at the lower part of the dashboard 300 of the automobile. Further, (d) is a side view showing a case where the user operates the telephone device by hand.

As shown in FIG. 21, a call device used in a conventional in-vehicle wireless communication device is fixed to the call device main body 100 and the back of the call device main body 100 using screws or the like, and this device is connected to other parts. It is comprised from the hanging metal fitting 200 which has the attachment hole which is not shown in figure used when attaching to.
As shown in FIG. 21, an LCD (Liquid Crystal Display) 117, operation keys 118, a speaker 113, and the like are mainly mounted in the casing of the communication device main body 100. However, the casing is reduced in size and weight. For this purpose, as in Patent Document 1, there is a type in which the front surface (radiated sound output surface) of the speaker 113 is mounted facing the rear surface side of the housing.

However, in the case where the speaker 113 is mounted in the telephone apparatus main body 100 toward the back side of the housing, in order to propagate the radiated sound output from the speaker 113 to the front where the user is present, FIG. As shown, it is necessary to reflect the radiated sound indicated by the white arrow output to the back side to the wall surface of the installation location of the dashboard 300. Further, as shown in FIG. 21 (c), when the dashboard 300 has no wall surface on the back side of the telephone device, since the radiated sound cannot be reflected, the volume of the speaker 113 transmitted to the user in front is reduced. There was a problem that.
In addition, as shown in FIG. 21 (d), when the speaker 113 is mounted in the telephone apparatus main body 100 facing the back side of the housing, the speaker 113 can be operated when the user operates the telephone apparatus by hand. There is a problem in that the radiated sound output location is blocked with a finger and the volume of the speaker 113 becomes unstable.

  The present invention has been made to solve such problems, and suppresses variations in reflection due to differences in the installation environment of radiated sound output from a speaker, and also allows a user to operate the device by hand. An object of the present invention is to provide a telephone device that can eliminate the unstable volume of the speaker.

  In order to achieve the above object, a telephone device according to the present invention comprises a telephone device main body, and a hanging bracket that is fixed to the back side of the casing of the telephone device main body and has a mounting hole for mounting to another part. In the telephone apparatus, the telephone apparatus main body includes a speaker mounted toward the back side in the casing, and a first slit hole for allowing sound emitted from the speaker to pass through the back side of the casing. The hanging metal fittings are arranged so as to face each other with a predetermined space between the first slit holes and are attached to the housing rear side.

  Further, the telephone device according to the present invention for achieving the above object is the above-mentioned telephone device, wherein the hook is in a horizontal direction opposite to the lower slit hole in the first slit hole of the housing. It has the 2nd slit hole in the position.

  In addition, the call device according to the present invention for achieving the above object is the above-described call device, in which the resonance sound generated on the back side of the speaker is propagated to the front of the device in the casing of the call device body. An acoustic tube is formed for this purpose.

  Further, a call device according to the present invention for achieving the above object includes a call device main body, and a hanging metal fitting fixed to the back side of the casing of the call device main body and having a mounting hole for mounting to another component. In the call device configured, the call device main body includes a speaker mounted toward the back side in the housing, and a third sound for allowing sound emitted from the speaker to pass through the back side of the housing. A slit hole and a fourth slit hole, and the hanging metal fitting is arranged to face the third slit hole with a predetermined gap between the fourth slit hole and the fourth slit hole. A fifth slit hole is provided at the opposite horizontal position.

  In addition, the call device according to the present invention for achieving the above object is the above-described call device, in which the resonance sound generated on the back side of the speaker is propagated to the front of the device in the casing of the call device body. An acoustic tube is formed for this purpose.

  As described above, according to the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the volume of the speaker when the user operates the device by hand is reduced. A telephone device capable of eliminating stability can be provided.

It is a front perspective view which shows the external appearance of the telephone apparatus which concerns on Embodiment 1 of this invention. It is the front view, right view, and back view of the telephone equipment which concern on Embodiment 1 of this invention. It is sectional drawing at the time of cut | disconnecting by the AA surface shown in FIG. It is explanatory drawing for demonstrating the propagation structure of the radiated sound from the speaker in the telephone apparatus which concerns on Embodiment 1 of this invention. It is a front perspective view which shows the external appearance of the telephone apparatus which concerns on Embodiment 2 of this invention. It is the front view, the right view, and the rear view of a telephone equipment which concern on Embodiment 2 of this invention. It is sectional drawing at the time of cut | disconnecting by the BB surface shown in FIG. It is explanatory drawing for demonstrating the propagation structure of the radiated sound from the speaker in the telephone apparatus which concerns on Embodiment 2 of this invention. It is a front perspective view which shows the external appearance of the telephone apparatus which concerns on Embodiment 3 of this invention. It is the front view, right view, and back view of a telephone equipment which concern on Embodiment 3 of this invention. It is sectional drawing at the time of cut | disconnecting by CC plane shown in FIG. It is explanatory drawing for demonstrating the propagation structure of the radiated sound from the speaker in the telephone apparatus which concerns on Embodiment 3 of this invention. It is a front perspective view which shows the external appearance of the telephone apparatus which concerns on Embodiment 4 of this invention. It is the front view, right view, and back view of a telephone equipment which concern on Embodiment 4 of this invention. It is sectional drawing at the time of cut | disconnecting by the DD plane shown in FIG. It is explanatory drawing for demonstrating the propagation structure of the radiated sound from the speaker in the telephone apparatus which concerns on Embodiment 4 of this invention. It is a front perspective view which shows the external appearance of the telephone apparatus which concerns on Embodiment 5 of this invention. It is the front view, right view, and rear view of a telephone equipment which concern on Embodiment 5 of this invention. It is sectional drawing at the time of cut | disconnecting by the EE surface shown in FIG. It is explanatory drawing for demonstrating the propagation structure of the radiated sound from the speaker in the telephone apparatus which concerns on Embodiment 5 of this invention. It is a figure which shows an example of the external appearance of the telephone apparatus used in the conventional vehicle-mounted radio | wireless communication apparatus, attachment, and operation.

<Embodiment 1> Hereinafter, a telephone device according to Embodiment 1 of the present invention will be described.
The telephone device according to the first embodiment of the present invention is, for example, a handset used in wireless communication. The handset is connected to the wireless communication unit by wire, and outputs a signal received wirelessly from the handset or outputs a signal input from the handset wirelessly.
In the present embodiment, the handset and the wireless communication unit are described as being connected by wire. However, the handset is not necessarily limited to wired connection, and may be wirelessly connected by a short-range wireless communication method or the like. Furthermore, if the wireless communication unit can be miniaturized, a wireless communication terminal in which the wireless communication part is built in and integrated with the handset may be used.

[Configuration of calling equipment]
Next, the configuration of the telephone device according to the first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a front perspective view showing an appearance of a telephone device according to Embodiment 1 of the present invention. FIG. 2 is a front view, a right side view, and a rear view of the telephone device according to the first embodiment of the present invention. 3 is a cross-sectional view taken along the plane AA shown in FIG.

As shown in FIGS. 1 and 2, the telephone device according to the first embodiment of the present invention is fixed to the telephone device body 1 and the back surface of the telephone device body 1 with metal fitting mounting screws 501. It is comprised from the metal fitting 2 which has the attachment hole 2a used when attaching to.
As shown in FIGS. 1 to 3, the telephone equipment main body 1 includes a housing composed of a front case 11 and a rear case 12, a speaker 13 that mainly outputs the other party's voice during reception, etc. in the housing, An LCD (Liquid Crystal Display) 15, operation keys 18 for operating the device, and a control board 16 for mounting the LCD 15 and the operation keys 18 on the front surface are mounted.
In addition, an LCD filter 17 is disposed in front of the LCD 15 and is attached to a concave portion of the front case 11 with a double-sided tape or an adhesive (not shown) to protect the LCD 15 from an impact received from the outside.
Reference numeral 19 denotes a communication cable for exchanging signals with a wireless communication unit (not shown) or for receiving power for power supply.

The speaker 13 is fixed to the rear case 12 with a screw or the like (not shown) so that the radiated sound output surface faces rearward, and in order to avoid interference with the control board 16, a buffer material 14 is provided on the rear side of the speaker 13. Is arranged.
Further, as shown in FIG. 3, the radiated sound is output from the speaker 13 to the upper part of the rear case 12 in the area where the radiated sound is output in order to propagate the radiated sound to the outside of the telephone. 12a, and a lower slit hole 12b is provided at the bottom.
Further, as shown in FIG. 3, the front case 11 on the back side of the speaker 13 has an acoustic tube 11a that allows the resonance sound on the back side of the speaker 13 to propagate directly to the front of the telephone, so that the resonance sound can pass therethrough. Is provided.
Reference numeral 502 denotes a main body fixing screw for fixing the rear case 12 to the front case 11.

  The hanging metal fittings 2 are arranged to face each other with a predetermined gap between the upper slit hole 12a and the lower slit hole 12b of the rear case 12, and the metal fittings are attached to the three boss holes formed in the rear case 12. It is attached with screws 501 for use.

[Propagation structure of sound radiated from speaker in telephone equipment]
Next, the propagation structure of the radiated sound from the speaker in the telephone device according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 4 is an explanatory diagram for explaining a propagation structure of radiated sound from a speaker in the telephone device according to the first embodiment of the present invention. Note that white arrows in FIG. 4 indicate the propagation path of the radiated sound output from the speaker 13.
In the telephone device according to Embodiment 1 of the present invention, the radiated sound output from the speaker 13 passes through the upper slit hole 12a and the lower slit hole 12b of the rear case 12, as shown in FIG. Propagate outside. All of the radiated sound that has passed through the upper slit hole 12a and the lower slit hole 12b of the rear case 12 is reflected by the front surface of the hook 2 and propagates forward through the periphery of the telephone equipment body 1.
The resonance generated on the back side of the speaker 13 passes through the acoustic tube 11a and propagates directly to the front of the telephone device.

  Therefore, even when the user operates the handheld device by hand, a predetermined interval is provided between the upper slit hole 12a and the lower slit hole 12b on the back of the telephone device body 1 and the hanging bracket 2. Since the upper slit hole 12a and the lower slit hole 12b of the rear case 12 are not blocked by the user's finger, all the radiated sound passing through the upper slit hole 12a and the lower slit hole 12b of the rear case 12 is applied. The user who is reflected by the front surface of the metal fitting 2 and is in front can easily hear the sound output from the speaker.

  As described above, according to the calling device according to the first embodiment of the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the user can operate the device by holding the device by hand. Thus, it is possible to provide a telephone device that can eliminate the instability of the volume of the speaker during the operation.

<Embodiment 2> Hereinafter, a telephone device according to Embodiment 2 of the present invention will be described.
The telephone device according to the second embodiment of the present invention is different from the telephone device according to the first embodiment of the present invention only in the shape of the hanging bracket.

[Configuration of calling equipment]
Next, the configuration of the telephone device according to the second embodiment of the present invention will be described in detail with reference to FIGS. FIG. 5 is a front perspective view showing the appearance of the telephone equipment according to Embodiment 2 of the present invention. FIG. 6 is a front view, a right side view, and a rear view of a telephone device according to Embodiment 2 of the present invention. FIG. 7 is a cross-sectional view taken along the plane BB shown in FIG. 5 to 7, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 5 and 6, the telephone device according to the second embodiment of the present invention is fixed to the telephone device body 1 and the back surface of the telephone device body 1 with metal fitting mounting screws 501. It is comprised from the metal fitting 3 which has the attachment hole 3a used when attaching to.

  The hanging metal fitting 3 is arranged so as to face the upper slit hole 12a and the lower slit hole 12b of the rear case 12 with a predetermined interval, and is attached to three boss holes formed in the rear case 12. It is attached with screws 501 for use. Further, the hanging metal fitting 3 has a slit hole 3b at a position in the horizontal direction facing the lower slit hole 12b of the rear case 12.

[Propagation structure of sound radiated from speaker in telephone equipment]
Next, the propagation structure of the radiated sound from the speaker in the telephone device according to the second embodiment of the present invention will be described with reference to FIG. FIG. 8 is an explanatory diagram for explaining a propagation structure of sound radiated from a speaker in the telephone device according to the second embodiment of the present invention. Note that the white arrow in FIG. 8 represents the propagation path of the radiated sound output from the speaker 13.
In the telephone device according to the second embodiment of the present invention, the radiated sound output from the speaker 13 passes through the upper slit hole 12a and the lower slit hole 12b of the rear case 12, as shown in FIG. Propagate outside. The radiated sound that has passed through the upper slit hole 12a of the rear case 12 is totally reflected by the front surface of the hanging bracket 2, and propagates forward through the periphery of the telephone equipment body 1. On the other hand, the radiated sound that has passed through the lower slit hole 12 b of the rear case 12 passes through the slit hole 3 b of the hook 3 and propagates behind the hook 3.
The resonance generated on the back side of the speaker 13 passes through the acoustic tube 11a and propagates directly to the front of the telephone device.

  Therefore, when the user operates the handheld device by hand, a predetermined interval is provided between the upper slit hole 12a and the lower slit hole 12b on the back of the telephone device body 1 and the hanging bracket 2. Even if the slit hole 3b of the hanging bracket 3 is closed by the person's finger, the radiated sound that has passed through the upper slit hole 12a of the rear case 12 is reflected by the front surface of the hanging bracket 2, and the user in front is not The output voice can be easily heard.

  As described above, according to the telephone device according to the second embodiment of the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the user operates the device by holding the device by hand. Thus, it is possible to provide a telephone device that can eliminate the instability of the volume of the speaker during the operation.

<Embodiment 3> Hereinafter, the telephone apparatus which concerns on Embodiment 3 of this invention is demonstrated.
The telephone equipment according to Embodiment 3 of the present invention differs from the telephone equipment according to Embodiment 1 of the present invention in the shapes of the rear case and the hanging bracket.

[Configuration of calling equipment]
Next, the configuration of the calling device according to the third embodiment of the present invention will be described in detail with reference to FIGS. FIG. 9 is a front perspective view showing the appearance of the telephone equipment according to Embodiment 3 of the present invention. FIG. 10 is a front view, a right side view, and a rear view of a telephone device according to Embodiment 3 of the present invention. Moreover, FIG. 11 is sectional drawing at the time of cut | disconnecting by CC plane shown in FIG.

As shown in FIGS. 9 and 10, the telephone device according to the third embodiment of the present invention is fixed to the telephone device body 20 and the back surface of the telephone device body 20 with metal fitting mounting screws 501, and this device is connected to other parts. It is comprised from the metal fitting 4 which has the attachment hole 4a used when attaching to.
As shown in FIG. 9 to FIG. 11, the telephone device main body 20 includes a housing composed of a front case 11 and a rear case 22, a speaker 13 that mainly outputs the other party's voice and the like during reception, An LCD (Liquid Crystal Display) 15, operation keys 18 for operating the device, and a control board 16 for mounting the LCD 15 and the operation keys 18 on the front surface are mounted.
In addition, an LCD filter 17 is disposed in front of the LCD 15 and is attached to a concave portion of the front case 11 with a double-sided tape or an adhesive (not shown) to protect the LCD 15 from an impact received from the outside.
Reference numeral 19 denotes a communication cable for exchanging signals with a wireless communication unit (not shown) or for receiving power for power supply.

The speaker 13 is fixed to the rear case 22 with a screw or the like (not shown) so that the radiated sound output surface faces rearward, and in order to avoid interference with the control board 16, a buffer material 14 is provided on the rear side of the speaker 13. Is arranged.
Further, on the radiated sound output side of the speaker 13, as shown in FIG. 11, in order to propagate the radiated sound to the outside rear side of the calling device, an upper slit hole is formed in the upper part of the rear case 22 in the area where the radiated sound is output. 22a, and a lower slit hole 22b is provided at the bottom.
Further, as shown in FIG. 11, the front case 11 on the back side of the speaker 13 has an acoustic tube 11 a that allows the resonance sound on the back side of the speaker 13 to propagate directly to the front of the calling device, so that the resonance sound can pass therethrough. Is provided.
Reference numeral 502 denotes a main body fixing screw for fixing the rear case 22 to the front case 11.

  The hanging metal fitting 4 is disposed so as to face the upper slit hole 22a and the lower slit hole 22b of the rear case 22 with a predetermined space therebetween, and has one boss hole formed in the rear case 22 and two places. Is attached to the mounting hole with a metal mounting screw 501.

[Propagation structure of sound radiated from speaker in telephone equipment]
Next, the propagation structure of the radiated sound from the speaker in the telephone equipment according to Embodiment 3 of the present invention will be described with reference to FIG. FIG. 12 is an explanatory diagram for explaining a propagation structure of radiated sound from a speaker in the telephone device according to the third embodiment of the present invention. In addition, the white arrow in FIG. 12 represents the propagation path of the radiated sound output from the speaker 13.
In the telephone device according to the third embodiment of the present invention, the radiated sound output from the speaker 13 passes through the upper slit hole 22a and the lower slit hole 22b of the rear case 22, as shown in FIG. Propagate outside. All of the radiated sound that has passed through the upper slit hole 22a and the lower slit hole 22b of the rear case 22 is reflected by the front surface of the hook 4 and propagates forward through the periphery of the telephone equipment main body 20.
The resonance generated on the back side of the speaker 13 passes through the acoustic tube 11a and propagates directly to the front of the telephone device.

  Therefore, even when the user operates the handheld device by hand, a predetermined interval is provided between the upper slit hole 22a and the lower slit hole 22b on the back surface of the telephone device body 20 and the hanging bracket 4. Since the upper slit hole 22a and the lower slit hole 22b of the rear case 22 are not blocked by the user's finger, all the radiated sound passing through the upper slit hole 22a and the lower slit hole 22b of the rear case 22 is multiplied. The user who is reflected by the front surface of the metal fitting 4 and is in front can easily hear the sound output from the speaker.

  As described above, according to the telephone device according to the third embodiment of the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the user operates the device by hand. Thus, it is possible to provide a telephone device that can eliminate the instability of the volume of the speaker during the operation.

<Embodiment 4> Hereinafter, the telephone apparatus which concerns on Embodiment 4 of this invention is demonstrated.
The call device according to Embodiment 4 of the present invention differs from the call device according to Embodiment 3 of the present invention only in the shape of the hook.

[Configuration of calling equipment]
Next, the configuration of the telephone device according to Embodiment 4 of the present invention will be described in detail with reference to FIGS. FIG. 13 is a front perspective view showing the appearance of the telephone equipment according to Embodiment 4 of the present invention. FIG. 14 is a front view, a right side view, and a rear view of a calling device according to Embodiment 4 of the present invention. FIG. 15 is a cross-sectional view taken along the line DD shown in FIG. 13 to 15, the same components as those in FIGS. 9 to 11 are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 13 and 14, the telephone device according to the fourth embodiment of the present invention is fixed to the telephone device main body 20 and the back of the telephone device main body 20 with metal fitting mounting screws 501, and the apparatus is connected to other parts. It is comprised from the metal fitting 5 which has the attachment hole 5a used when attaching to.

  The hanging metal fitting 5 is disposed so as to face the upper slit hole 22a and the lower slit hole 22b of the rear case 22 with a predetermined space therebetween, and has one boss hole formed in the rear case 22 and two places. Is attached to the mounting hole with a metal mounting screw 501. Further, the hanging metal fitting 5 has a slit hole 5b at a position in the horizontal direction opposite to the lower slit hole 22b of the rear case 22.

[Propagation structure of sound radiated from speaker in telephone equipment]
Next, the propagation structure of the radiated sound from the speaker in the telephone device according to Embodiment 4 of the present invention will be described with reference to FIG. FIG. 16 is an explanatory diagram for explaining a propagation structure of sound radiated from a speaker in the telephone device according to the fourth embodiment of the present invention. Note that the white arrow in FIG. 16 represents the propagation path of the radiated sound output from the speaker 13.
In the telephone device according to the fourth embodiment of the present invention, the radiated sound output from the speaker 13 passes through the upper slit hole 22a and the lower slit hole 22b of the rear case 22, as shown in FIG. Propagate outside. All of the radiated sound that has passed through the upper slit hole 22a of the rear case 22 is reflected by the front surface of the hanging bracket 5 and propagates forward through the periphery of the telephone equipment main body 20. On the other hand, the radiated sound that has passed through the lower slit hole 22 b of the rear case 22 passes through the slit hole 5 b of the hanging bracket 5 and propagates behind the hanging bracket 5.
The resonance generated on the back side of the speaker 13 passes through the acoustic tube 11a and propagates directly to the front of the telephone device.

  Accordingly, when the user operates the handheld device by hand, a predetermined interval is provided between the upper slit hole 22a and the lower slit hole 22b on the back of the telephone device main body 20 and the hanging bracket 5. Even if the slit hole 5b of the hanging bracket 5 is closed by the user's finger, the radiated sound that has passed through the upper slit hole 22a of the rear case 22 is reflected by the front surface of the hanging bracket 5, and the user in front is not The output voice can be easily heard.

  As described above, according to the telephone device according to the fourth embodiment of the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the user operates the device by holding the device by hand. Thus, it is possible to provide a telephone device that can eliminate the instability of the volume of the speaker during the operation.

<Embodiment 5> Hereinafter, a telephone device according to Embodiment 5 of the present invention will be described.
The call device according to Embodiment 5 of the present invention differs from the call device according to Embodiment 1 of the present invention in the shapes of the rear case and the hanging bracket.

[Configuration of calling equipment]
Next, the structure of the telephone equipment which concerns on Embodiment 5 of this invention is demonstrated in detail with reference to FIGS. FIG. 17 is a front perspective view showing the appearance of the telephone equipment according to Embodiment 5 of the present invention. FIG. 18 is a front view, a right side view, and a rear view of a telephone equipment according to Embodiment 5 of the present invention. FIG. 19 is a cross-sectional view taken along the line EE shown in FIG.

As shown in FIGS. 17 and 18, the telephone device according to the fifth embodiment of the present invention is fixed to the telephone device main body 30 and the back surface of the telephone device main body 30 with metal fitting mounting screws 501, and the apparatus is connected to other parts. It is comprised from the metal fitting 6 which has the attachment hole 6a used when attaching to.
As shown in FIGS. 17 to 19, the communication device main body 30 includes a housing made up of a front case 11 and a rear case 32, a speaker 13 that mainly outputs the other party's voice during reception, etc. in the housing, An LCD (Liquid Crystal Display) 15, operation keys 18 for operating the device, and a control board 16 for mounting the LCD 15 and the operation keys 18 on the front surface are mounted.
In addition, an LCD filter 17 is disposed in front of the LCD 15 and is attached to a concave portion of the front case 11 with a double-sided tape or an adhesive (not shown) to protect the LCD 15 from an impact received from the outside.
Reference numeral 19 denotes a communication cable for exchanging signals with a wireless communication unit (not shown) or for receiving power for power supply.

The speaker 13 is fixed to the rear case 32 with a screw or the like (not shown) so that the radiated sound output surface faces rearward, and in order to avoid interference with the control board 16, a buffer material 14 is provided on the rear side of the speaker 13. Is arranged.
Further, on the radiated sound output side of the speaker 13, as shown in FIG. 19, since the radiated sound is propagated to the outside of the calling device, an upper slit hole is formed above the rear case 32 in the area where the radiated sound is output. 32a is also provided with a lower slit hole 32b at the bottom.
Further, as shown in FIG. 19, the front case 11 on the rear side of the speaker 13 has an acoustic tube 11 a that allows the resonance sound on the rear side of the speaker 13 to propagate directly to the front of the calling device. Is provided.
Reference numeral 502 denotes a main body fixing screw for fixing the rear case 32 to the front case 11.

  The hanging metal fitting 6 is disposed so as to face the upper slit hole 32a of the rear case 32 with a predetermined interval and is disposed so as to contact the lower slit hole 32b. It is attached to the boss holes at two locations and the mounting holes at two locations with metal fitting mounting screws 501.

[Propagation structure of sound radiated from speaker in telephone equipment]
Next, the propagation structure of the radiated sound from the speaker in the telephone device according to the fifth embodiment of the present invention will be described with reference to FIG. FIG. 20 is an explanatory diagram for explaining a propagation structure of sound radiated from a speaker in a telephone device according to Embodiment 5 of the present invention. Note that the white arrow in FIG. 20 represents the propagation path of the radiated sound output from the speaker 13.
In the telephone device according to the fifth embodiment of the present invention, the radiated sound output from the speaker 13 passes through the upper slit hole 32a and the lower slit hole 32b of the rear case 32 as shown in FIG. Propagate outside. All of the radiated sound that has passed through the upper slit hole 32a of the rear case 32 is reflected by the front surface of the hanging bracket 6 and propagates forward through the periphery of the telephone equipment main body 30. On the other hand, the radiated sound that has passed through the lower slit hole 32 b of the rear case 32 passes through the slit hole 6 b of the hanging bracket 6 and propagates behind the hanging bracket 6.
The resonance generated on the back side of the speaker 13 passes through the acoustic tube 11a and propagates directly to the front of the telephone device.

  Accordingly, when the user operates the handheld device by hand, a predetermined interval is provided between the upper slit hole 32a on the back of the telephone device main body 30 and the hanging bracket 6, so that the hanging bracket can be moved by the user's finger. Even if the slit hole 6b is closed, the radiated sound that has passed through the upper slit hole 32a of the rear case 32 is reflected by the front surface of the hanging bracket 6, and the user in front can easily hear the sound output from the speaker. Can listen to.

  As described above, according to the telephone device according to the fifth embodiment of the present invention, the variation in reflection due to the difference in the installation environment of the radiated sound output from the speaker is suppressed, and the user operates the device by holding the device by hand. Thus, it is possible to provide a telephone device that can eliminate the instability of the volume of the speaker during the operation.

  It should be noted that the configuration and operation of the above-described embodiment are examples, and it goes without saying that the embodiment can be appropriately modified and executed without departing from the spirit of the present invention.

  This application claims the benefit of priority based on Japanese Patent Application No. 2014-187760 filed on September 16, 2014, the entire disclosure of which is incorporated herein by reference.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a call device used in an in-vehicle wireless communication device or the like, particularly for a call device in which a speaker is mounted on the back side of a casing.

1: Telephone equipment main body, 2: Hanging bracket, 2a: Mounting hole, 3: Hanging bracket, 3a: Mounting hole, 3b: Slit hole, 4: Hanging bracket, 4a: Mounting hole, 5: Hanging bracket, 5a: Mounting hole 5b: slit hole, 6: hanging bracket, 6a: mounting hole, 6b: slit hole, 11: front case, 11a: acoustic tube, 12: rear case, 12a: upper slit hole, 12b: lower slit hole, 13 : Speaker, 14: Buffer material, 15: LCD, 16: Control board, 17: LCD filter, 18: Operation key, 19: Communication cable, 20: Telephone device body, 22: Rear case, 22a: Upper slit hole, 22b : Lower slit hole, 30: Telephone device body, 32: Rear case, 32a: Upper slit hole, 32b: Lower slit hole, 100: Telephone device body, 113: Speaker, 117: LCD, 11 : Operation keys, 200: hanging bracket, 300: Dashboard, 301: terminal mounting hooks 501: Bracket mounting screw, 502: main body fixing screw.

Claims (6)

In a telephone device composed of a telephone device main body and a hanging bracket that is fixed to the housing rear side of the telephone device main body and has a mounting hole for mounting to other parts,
The telephone apparatus main body includes a speaker mounted toward the back side in the housing, and has a first slit hole for allowing the sound emitted from the speaker to pass through on the back side of the housing.
The telephone is characterized in that the hook is disposed to face the first slit hole with a predetermined gap and is attached to the rear side of the housing.   The telephone device according to claim 1, wherein the hook has a second slit hole at a position in a horizontal direction opposite to a lower slit hole in the first slit hole of the housing. Calling equipment.   2. The telephone device according to claim 1, wherein an acoustic tube for propagating resonance sound generated on the back side of the speaker to the front of the device is formed in the casing of the telephone device main body. Calling equipment.   3. The telephone device according to claim 2, wherein an acoustic tube for propagating resonance sound generated on the back side of the speaker to the front of the device is formed in the casing of the telephone device main body. Calling equipment. In a telephone device composed of a telephone device main body and a hanging bracket that is fixed to the back side of the case body of the telephone device main body and has a mounting hole for attaching to other parts,
The telephone device main body includes a speaker mounted toward the back side in the casing, and a third slit hole for allowing sound radiated from the speaker to pass through the back side of the casing; Having a slit hole,
The hanging metal fitting is disposed so as to face the third slit hole with a predetermined interval, and has a fifth slit hole at a position in a horizontal direction opposite to the fourth slit hole. Calling equipment characterized by that.   6. The telephone device according to claim 5, wherein an acoustic tube for propagating resonance sound generated on the back side of the speaker to the front of the device is formed in the casing of the telephone device main body. Calling equipment.

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