JP4443192B2 - Foldable mobile terminal - Google Patents

Description

  The present invention relates to a foldable portable terminal configured such that a pair of flat cabinets are connected so as to be openable and closable like a foldable mobile phone.

  In recent years, folding mobile phones have become smaller and thinner and have become more multifunctional, and the development of folding mobile phones that can send and receive calls and mails even when both cabinets are closed is progressing. (For example, see Patent Documents 1 to 3).

For example, a foldable mobile phone shown in FIGS. 7 and 8 has been proposed as a foldable mobile phone capable of making a call even when both cabinets are closed.
The foldable mobile phone is configured by connecting a main body cabinet (8) and a lid cabinet (9) through a hinge mechanism (83) so as to be openable and closable. An operation key (81) and a transmitter (82) are provided, and a microphone (84) with a sound collection surface facing the transmitter (82) is provided inside the main body cabinet (8). A main display (91) is provided on the inner surface of the lid cabinet (9), and is located at a position facing the transmitter (82) with both cabinets (8) and (9) closed. A first receiver (92) is provided, and a second receiver (93) is provided on the back of the lid cabinet (9). In addition, a first speaker (94) having a sound emitting surface directed to the first receiving section (92) is provided in the lid cabinet (9), and a sound emitting surface is provided to the second receiving section (93). A second speaker (95) facing is provided.
In addition, a first convex portion (85) protrudes in the vicinity of the transmitting portion (82) of the main body cabinet (8), and the lid cabinet (9) has a first receiving portion (92). A second convex portion (96) is provided in the vicinity, and both convex portions (85) and (96) contact each other with both cabinets (8) and (9) closed.

In the foldable mobile phone, when both cabinets (8) and (9) are closed as shown in FIG. 8, it is detected by the cabinet open / close detector (not shown) that both cabinets (8) and (9) are closed, A detection signal based on the detection is supplied to a control circuit (not shown). The control circuit causes the microphone (84) and the second speaker (95) to function according to the detection signal. As a result, transmission and reception can be performed with both cabinets (8) and (9) closed. Therefore, it is not necessary to open both cabinets (8) and (9) when receiving an incoming call.
JP 2003-18257 A [H04M1 / 02] JP 2003-51871 A [H04M1 / 02] JP 2003-134201 A [H04M1 / 02]

  However, in the foldable mobile phone, when transmitting and receiving with the both cabinets (8) and (9) closed as shown in FIG. 8, the vibration of the second speaker (95) causes the lid cabinet (9) and the lid to move. This is transmitted to the first speaker (94) through the air inside the body cabinet (9), and thereby the first speaker (94) vibrates, so that the second speaker (95) is transmitted from the first speaker (94). A sound wave having a waveform approximate to the sound wave emitted from the sound wave is emitted. Here, since the first speaker (94) is opposed to the microphone (84) via the first receiver (92) and the transmitter (82), the sound wave emitted from the first speaker (94) is generated. As a result, there is a problem that howling through the first speaker (94) occurs between the second speaker (95) and the microphone (84).

  Accordingly, an object of the present invention is to provide a foldable portable terminal configured by connecting a pair of cabinets, and when both cabinets are closed, a sound wave emitted from a speaker provided in one cabinet is provided in the other cabinet. It is an object of the present invention to provide a foldable portable terminal that is not transmitted to a microphone.

The foldable portable terminal according to the present invention is configured by connecting a main body cabinet (1) and a lid cabinet (2) so that they can be opened and closed. The lid cabinet (2) is provided with a first speaker (27), and the inner surface of the lid cabinet (2) is arranged at a position facing the sound emitting surface of the first speaker (27). One or a plurality of sound emission holes (29) for allowing the sound waves emitted from 27) to pass therethrough are provided. In addition, one or a plurality of openings (19) are opened on the inner surface of the main body cabinet (1) at a position facing both the sound emission holes (29) with both cabinets (1) and (2) closed. The main body cabinet (1) is provided with a microphone (13) having a sound collection surface facing the opening (19).
The lid cabinet (2) is provided with a second speaker (210) that emits sound waves toward the back surface of the lid cabinet (2), and either or both cabinets include both cabinets ( 1) A closing means for closing the sound emission hole (29) in the closed state of (2) is provided.

  In the foldable portable terminal according to the present invention, by closing both cabinets (1) and (2), the microphone (13) of the main body cabinet (1) and the first speaker (27) of the lid cabinet (2). Will face each other through the opening (19) and the sound emission hole (29). At this time, the microphone (13) and the second speaker (210) are both facing away from the back side of the main body cabinet (1), and the microphone (13) and the second speaker (210) function in this state. As a result, the user can perform transmission / reception with the microphone (13) and the second speaker (210) facing forward.

  At this time, the sound wave emitted from the second speaker (210) is transmitted to the first speaker (27) through the air inside the lid cabinet (2) and the lid cabinet (2), and accordingly the first speaker (27) is transmitted. Since the speaker (27) vibrates, sound waves having a waveform approximate to the sound wave are emitted from the first speaker (27). However, since the sound emission hole (29) for releasing the sound wave to the outside of the lid cabinet (2) is closed by the closing means, the sound wave is slightly outside the lid cabinet (2). It is only released to. In addition, the sound wave emitted to the outside of the lid cabinet (2) is attenuated in the process of passing through the opening (19) and reaching the inside of the main body cabinet (1), so that the sound wave is transmitted to the microphone (13). There is no.

  When both cabinets (1) and (2) are opened, the state where the sound emitting hole (29) is closed by the closing means is released, and the sound emitting hole (29) is opened. By causing the microphone (13) and the first speaker (27) to function in this state, the user performs transmission and reception in a posture in which the mouth is brought close to the opening (19) and the ear is brought close to the sound emitting hole (29). I can do it.

  In a specific configuration, the closing means includes detection means for detecting the open state and the closed state of both cabinets (1) and (2), and a shutter mechanism (4) for opening and closing the sound emission hole (29) in response to the detection. It has. The shutter mechanism (4) includes a shutter member (40) supported so as to be able to enter between the sound emitting surface of the first speaker (27) and the opposing surface of the sound emitting hole (29), and according to the detection. And a drive mechanism (42) for reciprocatingly driving the shutter member (40). The shutter member (40) is inserted between the opposing surfaces in the closed state of both cabinets (1) and (2) by the operation of the drive mechanism (42), and closes the sound emitting hole (29). 1) Escape from between the opposing surfaces in the open state of (2) to open the sound emission hole (29).

  In the specific configuration, when both cabinets (1) and (2) are closed, the detection means detects the closed state of both cabinets (1) and (2), and the drive mechanism (42) operates in response to the detection. By this operation, the shutter member (40) enters between the sound emitting surface of the first speaker (27) and the opposing surface of the sound emitting hole (29) and closes the sound emitting hole (29). As a result, the sound wave emitted from the first speaker (27) due to the vibration of the second speaker (210) is only slightly emitted to the outside of the lid cabinet (2), and the sound wave is emitted from the main body cabinet. There is no transmission through the opening (19) of (1) to the microphone (13).

  When both cabinets (1) and (2) are opened, the detection means detects the open state of both cabinets (1) and (2), and the drive mechanism (42) operates in response to the detection. The shutter member (40) escapes from between the opposing surfaces. As a result, the sound emission hole (29) is opened, and by operating the first speaker (27) in this state, the sound wave emitted from the first speaker (27) passes through the sound emission hole (29). Then, it will be discharged to the outside of the lid cabinet (2). Therefore, the user can hear the voice from the communication partner emitted from the first speaker (27) by bringing the ear close to the sound emission hole (29).

  In another specific configuration, the opening (19) and the sound emission hole (29) are provided at positions that are slightly shifted from each other when both the cabinets (1) and (2) are closed. In the inner surface area of the main body cabinet (1), a projecting portion (43) formed at a position facing the sound emission hole (29) with both cabinets (1) and (2) closed is provided. . The projecting portion (43) closes the sound emitting hole (29) when both the cabinets (1) and (2) are closed, and detaches from the sound emitting hole (29) when the lid cabinet (2) is opened. .

In the specific configuration, by closing both cabinets (1) and (2), the protrusion (43) on the inner surface of the main body cabinet (1) abuts on the inner surface of the lid cabinet (2), and the protrusion (43). As a result, the sound emission hole (29) is closed.
Further, by opening both cabinets (1) and (2), the projecting portion (43) is detached from the sound emission hole (29), thereby opening the sound emission hole (29). As a result, the sound wave emitted from the first speaker (27) passes through the sound emission hole (29) and is emitted to the outside of the lid cabinet (2).

In a more specific configuration, the protrusion (43) is made of an elastic resin.
In the specific configuration, when both cabinets (1) and (2) are closed, the sound wave emitted from the first speaker (27) is effective due to the elasticity of the protrusion (43) blocking the sound emission hole (29). Absorbed.

  According to the foldable portable terminal according to the present invention, when both cabinets are closed, howling due to transmission of sound waves emitted from a speaker provided in one cabinet to a microphone provided in the other cabinet is prevented. The

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention applied to a foldable mobile phone will be specifically described below with reference to the drawings.
First Embodiment A foldable mobile phone of this embodiment is constructed by connecting a lid cabinet (2) to a main cabinet (1) through a hinge mechanism (3) as shown in FIGS. The main body cabinet (1) and the lid cabinet (2) can be folded with the inner surface of the main body cabinet (1) and the inner surface of the lid cabinet (2) facing each other. The lid cabinet (2) is formed by joining the inner cabinet half (25) and the rear cabinet half (26), and the main cabinet (1) has the same configuration as the lid cabinet (2). is doing.

  As shown in FIG. 1, a plurality of operation keys (11) are provided on the inner surface of the main body cabinet (1), and a transmitter (12) is recessed below the operation keys (11). The transmission section (12) is formed with an opening (19) penetrating from the inner surface side of the main body cabinet (1) toward the inside. Inside the main body cabinet (1), a microphone (13) having a sound collection surface facing the opening (19) is provided. A cabinet opening / closing detection switch (15) is provided at the end of the hinge mechanism (3) side, and a side key (14) is provided on the side surface of the main body cabinet (1).

  A main display (20) is provided on the inner surface of the lid cabinet (2). Above the main display (20), the transmitter (12) with both cabinets (1) and (2) closed. The receiving part (21) is arranged at a position that faces the front, and a first speaker (27) having a sound emitting surface facing the receiving part (21) is provided inside the lid cabinet (2). Has been deployed. In the receiver (21), a plurality of sound emission holes (29) for allowing sound waves from the first speaker (27) to pass therethrough are provided. A pressing pin (24) is provided below the main display (20) to press the cabinet open / close detection switch (15) by closing both cabinets (1) and (2).

  As shown in FIG. 2, a sub-display (22) is provided on the rear surface of the lid cabinet (2), and a sound emitting part (23) is provided between the sub-display (22) and the hinge mechanism (3). ) And a second speaker (210) having a sound emitting surface directed to the sound emitting portion (23) is arranged inside the lid cabinet (2).

  As shown in FIG. 3, the first speaker (27) provided inside the lid cabinet (2) is fixed in a state of being held by a pair of speaker holding members (28) and (28). A shutter mechanism (4) that opens and closes a plurality of sound emitting holes (29) in response to opening and closing of both cabinets (1) and (2) is disposed on the side of the speaker holding member (28).

  The shutter mechanism (4) includes a belt-like shutter member (40) that is slidably supported along the back surface of the inner cabinet half (25), and a shutter accommodating chamber in which the shutter member (40) is to be accommodated. (41) and a drive mechanism (42) that reciprocally drives the shutter member (40) in response to opening and closing of both cabinets (1) and (2). 3), the housing position accommodated in the shutter accommodating chamber 41 as shown in FIG. 3 and the space between the sound emitting surface of the first speaker 27 and the opposing surfaces of the plurality of sound emitting holes 29 as shown in FIG. It is possible to slide along the back surface of the inner cabinet half (25) between the closed position where the sound entry holes (29) are blocked by entering the sound source.

  When the foldable mobile phone of this embodiment is carried in a pocket or bag, both cabinets (1) and (2) are folded from the state where both cabinets (1) and (2) are opened as shown in FIG. Close both cabinets (1) and (2) as shown in FIG. As a result, the main display (20) and the plurality of operation keys (11) shown in FIG. 1 are hidden inside the cabinets (1) and (2). At this time, there is no possibility that the main display (20) is damaged by the action of the external force, and there is no possibility that the plurality of operation keys (11) are pressed by the action of the external force to cause a malfunction.

  At this time, as shown in FIG. 4, the cabinet open / close detection switch (15) is pressed by the pressing pin (24) to be turned on, and the control circuit (not shown) built in the main body cabinet (1) is turned on. A signal to notify is supplied. Based on the signal, the control circuit detects that both cabinets (1) and (2) are closed, and supplies the detection signal to the drive mechanism (42) of the shutter mechanism (4). In response to the detection signal, the drive mechanism (42) slides the shutter member (40) from the accommodation position shown in FIG. 3 to the closing position shown in FIG. As a result, the plurality of sound emitting holes (29) are blocked by the shutter member (40), and the passage for releasing the sound wave emitted from the first speaker (27) to the outside of the lid cabinet (2) is blocked. The

By pressing the side key (14) in this state and setting to hands-free mode, it is possible to send and receive speech while it is placed on a desk without holding the foldable mobile phone by hand. is there.
At this time, the control circuit causes the microphone (13) and the second speaker (210) to function in response to the signal from the cabinet open / close detection switch (15) and the setting to the hands-free mode. Further, since the transmitter (12) is recessed in the inner surface of the main body cabinet (1), even when both cabinets (1) and (2) are closed, the opening (19) of the transmitter (12) is closed. ) Is not blocked by the inner surface of the lid cabinet (2).
In this state, the sound emission part (23) and the transmission part (12) are placed by placing both cabinets (1) and (2) on the desk with the back of the main cabinet (1) in contact with the desk surface. The user's voice is emitted from the sound emitting unit (23) and the voice of the user is collected by the transmitting unit (12), so that transmission / reception is performed.

At this time, the vibration of the second speaker (210) is transmitted to the first speaker (27) via the air inside the lid cabinet (2) and the lid cabinet (2), and accordingly, the first speaker ( 27) vibrates, and as a result, a sound wave having a waveform approximate to the sound wave emitted from the second speaker (210) is emitted from the first speaker (27). However, since the plurality of sound emission holes (29) are closed by the shutter member (40), the sound wave emitted from the first speaker (27) is slightly emitted to the outside of the lid cabinet (2). It's just The sound wave emitted to the outside of the lid cabinet (2) is attenuated in the process of passing through the opening (19) of the transmitter (12) and reaching the inside of the main body cabinet (1). Is not transmitted to the microphone (13).
Therefore, howling through the first speaker (27) does not occur between the second speaker (210) and the microphone (13), and there is no possibility that the other party is uncomfortable.

In the foldable mobile phone of the present embodiment, transmission / reception, mail transmission / reception, and transmission mail can be made with both cabinets (1) and (2) opened as shown in FIG.
By opening both cabinets (1) and (2), the main display (20) and the receiver (21) on the inner surface of the lid cabinet (2) are exposed and the operation keys (11) on the inner surface of the main cabinet (1) and The transmitter (12) is exposed. At this time, the cabinet open / close detection switch (15) is released from being pressed by the pressing pin (24), and the control circuit causes the microphone (13) and the first speaker (27) to function accordingly.

  Further, the control circuit operates the drive mechanism (42) of the shutter mechanism (4), whereby the shutter member (40) slides from the closed position shown in FIG. 4 to the accommodated position shown in FIG. As a result, the plurality of sound emission holes (29) are opened, and the sound waves emitted from the first speaker (27) pass through the plurality of sound emission holes (29) and are emitted to the outside of the lid cabinet (2). .

  Therefore, when an incoming call is received, a call can be made by performing an off-hook operation using the operation key (11), and the user answers the incoming call by bringing the receiver (21) closer to the ear and the transmitter (12) closer to the mouth. I can do it.

  Further, when receiving a mail, by operating the operation key (11), the contents of the received mail can be displayed on the screen of the main display (20) and confirmed. At the time of mail creation, the text created by the user is displayed on the screen of the main display (20) by operating the operation key (11).

  According to the foldable mobile phone of the present embodiment, the plurality of sound emitting holes (29) of the receiver (21) are opened and closed according to the opening and closing of both cabinets (1) and (2). ) When the second speaker (210) and the microphone (13) are simultaneously operated with the (2) closed, the howling phenomenon occurs between the second speaker (210) and the microphone (13). In other words, hands-free transmission / reception is performed in a good call state.

Second Embodiment The foldable mobile phone of this embodiment shown in FIGS. 5 and 6 is different from the first embodiment in the structure for closing the sound emission hole (29), but the other structure is the same as that of the first embodiment. Therefore, only the structure for closing the sound emission hole (29) will be described, and the other structures will be denoted by the same reference numerals and description thereof will be omitted.

  As shown in FIG. 5, the folding cellular phone according to the present embodiment is provided with the receiver (21) of the lid cabinet (2) closer to the main display (20) than in the first embodiment. Thus, as shown in FIG. 6, when both cabinets (1) and (2) are closed, the receiver (21) and the transmitter (12) of the main cabinet (1) are connected to both cabinets (1). They are slightly shifted from each other in the connecting direction (2).

  Further, the inner surface of the main body cabinet (1) is made of an elastic resin at a position facing the receiver (21) of the lid cabinet (2) with both cabinets (1) and (2) closed. A flat projection (43) is provided.

  In the foldable mobile phone of this embodiment, by closing both cabinets (1) and (2), the protrusion (43) on the inner surface of the main body cabinet (1) contacts the inner surface of the lid cabinet (2), The sound emitting hole (29) is closed by the projecting portion (43), and the passage for releasing the sound wave emitted from the first speaker (27) to the outside of the lid cabinet (2) is blocked.

  When the hands-free mode is set in this state, the control circuit notifies the microphone 13 and the second speaker in response to the signal for notifying the on / off state of the cabinet open / close detection switch 15 and setting the hands-free mode. (210) is made to function. As a result, the other party's voice is emitted from the second speaker (210) of the sound emitting section (23) on the back of the lid cabinet (2), and the user's voice is also heard by the microphone (13) of the transmitting section (12). Sound is collected.

  At this time, the first speaker (27) also vibrates with the vibration of the second speaker (210), whereby sound waves are emitted from the first speaker (27). However, since the plurality of sound emission holes (29) for allowing the sound waves from the first speaker (27) to pass therethrough are blocked by the elastic resin protrusions (43), the sound waves are projected from the protrusions (43 ) Is effectively absorbed by the elasticity, and is hardly released to the outside of the lid cabinet (2). As a result, very few sound waves are emitted to the outside of the lid cabinet (2), and the sound waves are not transmitted to the microphone (13) through the opening (19) of the main body cabinet (1). .

By opening both cabinets (1) and (2), the projecting part (43) of the main cabinet (1) is detached from the sound emission hole of the lid cabinet (2), thereby opening the sound emission hole (29). Is done. At this time, the cabinet open / close detection switch (15) is released from being pressed by the pressing pin (24), and the control circuit causes the microphone (13) and the first speaker (27) to function accordingly.
Therefore, when an incoming call is received, a call can be made by performing an off-hook operation using the operation key (11), and the user answers the incoming call by bringing the receiver (21) closer to the ear and the transmitter (12) closer to the mouth. I can do it.

  According to the foldable mobile phone of the present embodiment, the receiving part can be provided in accordance with the opening and closing of both cabinets (1) and (2) with a simple configuration in which a protrusion made of elastic resin is provided on the inner surface of the main body cabinet (1). It is possible to open and close a plurality of sound emission holes (29) of (21), thereby functioning the second speaker (210) and the microphone (13) with both cabinets (1) and (2) closed. Even in this case, no howling through the first speaker (27) occurs between the second speaker (210) and the microphone (13).

It is a perspective view of the open state of the foldable mobile telephone of 1st Example of this invention. It is a perspective view of the closed state of the foldable mobile phone. It is a partially broken front view of the open state of the foldable mobile phone. It is a partially broken front view of the foldable mobile phone in a closed state. It is a perspective view of the open state of the foldable mobile telephone of 2nd Example of this invention. It is sectional drawing of the closed state of this foldable mobile telephone. It is sectional drawing of the open state of the conventional foldable mobile telephone. It is sectional drawing of the closed state of this foldable mobile telephone.

Explanation of symbols

(1) Main body cabinet
(11) Operation keys
(12) Transmitter
(13) Microphone
(15) Cabinet open / close detection switch
(19) Opening
(2) Lid cabinet
(20) Main display
(21) Earpiece
(23) Sound emission part
(24) Press pin
(27) First speaker
(29) Sound vent
(210) Second speaker
(3) Hinge mechanism
(4) Shutter mechanism
(40) Shutter member
(42) Drive mechanism
(43) Projection

Claims (4)

The main body cabinet (1) and the lid cabinet (2) are connected to each other so as to be openable and closable. The lid cabinet (2) is provided with a first speaker (27), and is attached to the inner surface of the lid cabinet (2). Is provided with one or a plurality of sound emission holes (29) for allowing sound waves emitted from the first speaker (27) to pass through at a position facing the sound emission surface of the first speaker (27). On the inner surface of the main body cabinet (1), one or a plurality of openings (19) are opened at positions that face the sound emission holes (29) with both cabinets (1) and (2) closed. In the foldable portable terminal in which the microphone (13) with the sound collection surface facing the opening (19) is arranged in the main body cabinet (1),
The lid cabinet (2) is provided with a second speaker (210) that emits sound waves toward the rear surface of the lid cabinet (2). The lid cabinet (2) includes both cabinets (1). ) (2) is provided with a closing means for closing the sound emission hole (29) in the closed state,
The closing means comprises detection means for detecting the open and closed states of both cabinets (1) and (2), and a shutter mechanism (4) for opening and closing the sound emission hole (29) in response to the detection. The shutter mechanism (4) includes a shutter member (40) supported so as to be able to enter between the sound emitting surface of the first speaker (27) and the opposing surface of the sound emitting hole (29), and the shutter mechanism (4) according to the detection. A driving mechanism (42) for reciprocatingly driving the shutter member (40), and the shutter member (40) is moved between the opposing surfaces in a closed state of both cabinets (1) and (2) by the operation of the driving mechanism (42). And the sound emission hole (29) is closed, while the two cabinets (1) and (2) are opened to escape from between the facing surfaces to open the sound emission hole (29). Folding portable terminal. The main body cabinet (1) and the lid cabinet (2) are connected to each other so as to be openable and closable. The lid cabinet (2) is provided with a first speaker (27), and is attached to the inner surface of the lid cabinet (2). Is provided with one or a plurality of sound emission holes (29) for allowing sound waves emitted from the first speaker (27) to pass through at a position facing the sound emission surface of the first speaker (27). On the inner surface of the main body cabinet (1), one or a plurality of openings (19) are opened at positions that face the sound emission holes (29) with both cabinets (1) and (2) closed. In the foldable portable terminal in which the microphone (13) with the sound collection surface facing the opening (19) is arranged in the main body cabinet (1),
The lid cabinet (2) is provided with a second speaker (210) that emits sound waves toward the back of the lid cabinet (2), and the main cabinet (1) includes both cabinets (1). In the closed state of (2), a closing means is provided for contacting the inner surface of the lid cabinet (2) and closing the sound emitting hole (29), and the closing means is provided in the inner surface area of the main body cabinet (1). Inside, both cabinets (1) and (2) are provided with a projecting portion (43) formed at a position facing the sound emitting hole (29) in the closed state. 1) A foldable portable terminal characterized by closing the sound emission hole (29) in the closed state of (2), and detaching from the sound emission hole (29) with the lid cabinet (2) opened. Machine. The foldable portable terminal according to claim 2, wherein the opening (19) and the sound emission hole (29) are provided at positions that are slightly shifted from each other when both the cabinets (1) and (2) are closed. . The opening (19) and the sound emission hole (29) are respectively disposed at the end opposite to the hinge mechanism connecting the two cabinets (1) and (2), and the sound emission hole (29) is provided in both cabinets. (1) In the closed state of (2), it is provided at a position closer to the hinge mechanism than the opening (19), and the protrusion (43) is open in the closed state of both cabinets (1) and (2). The foldable portable terminal according to claim 2 or 3, wherein the sound emitting hole (29) is closed closer to the hinge mechanism than (19).

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