JP2012199667A - Speaker-equipped mobile apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience in the use state of a mobile apparatus by arranging stands in a housing itself, and also to improve a stereo effect by using the stands for acoustic reflection plates.SOLUTION: Stands 20 are arranged in a housing 10. The stands 20 are formed by a pair of right and left plate piece shape members 21, 21 to be rocked between in-housing storage postures and housing support postures with the portions close to the center part of the housing 10 as fulcrums P1, P2. The rear surfaces of the plate piece shape members 21, 21 are used as acoustic reflection surfaces 22, 22.

Description

  The present invention relates to a speaker-equipped mobile device in which measures are taken to increase the acoustic stereo effect of speakers installed on both the left and right sides in a housing.

  A personal computer is known in which speakers are installed on both the left and right sides of a housing provided with a screen in order to obtain an acoustic stereo effect (see, for example, Patent Document 1). In Patent Document 1, a screen housing is attached to a main body having a keyboard so as to be openable and closable, and a speaker is directed to the rear of the back of the screen. And by the cover member attached so as to cover the back of the screen, the sound of the left speaker is guided to the left side of the screen, and the sound of the right speaker is guided to the right side of the screen to increase the acoustic stereo effect. Is described. Also, when two speakers are assembled in a band of a communication device that can be worn on a person's arm, and the bunt of the communication device is opened and placed on a desk surface or the like, the directivity direction of the two speakers is expanded. A wearable electronic device has been proposed (see, for example, Patent Document 2). In addition, an arc-shaped acoustic reflector is attached to the cradle for playing back audio and music, and the acoustic reflector is also used to reflect the sound of the speaker built into the cradle so that it is directed forward. (For example, see Patent Document 3). Furthermore, it is also known to use the rear glass of an automobile to reflect sound, and to use a decorative panel of a display panel as a sound diaphragm (see, for example, Patent Document 4 and Patent Document 5). ).

JP-T-2001-520836 JP 2004-289522 A Japanese Patent Laid-Open No. 2006-157397 Japanese Utility Model Publication No. 6-273 Japanese Patent No. 4302468

  By the way, in a mobile device used as an AV viewing terminal, a usage state in which the mobile device is leaned against a stand on a desk surface or a floor surface is employed. Therefore, if the housing itself is provided with a stand, it is convenient when the mobile device is used as an AV viewing terminal on the desk surface or floor surface. In addition, in the case where speakers are assembled on both the left and right sides in the housing of the mobile device, a certain stereo effect can be obtained by these speakers, but the size of the mobile device itself is small, so the interval between the left and right speakers is set. There is a limit to expanding and improving the stereo effect.

  On the other hand, as shown in the above-mentioned Patent Document 1, if a cover member is attached to a housing provided with a screen and the sound of the speaker is reflected by the cover member and guided to the left and right of the screen, the acoustic stereo effect is increased accordingly. Can be said to improve.

  However, applying the technique of attaching a cover member to a housing as in Patent Document 1 to a mobile device to improve the stereo effect of the mobile device is originally required to be lightweight and small. For mobile devices, there are problems such as increasing weight and increasing size.

  Therefore, the inventor of the present application paid attention to the fact that the convenience of a mobile device used as an AV viewing terminal is increased if the housing itself is provided with a stand as a result of an extensive investigation. Can be used not only for leaning the housing, but also as an acoustic reflector for reflecting the sound of the speakers installed on the left and right sides of the housing. It was thought that an effect could be improved, and came to complete this invention.

  The present invention has been made under the above circumstances, and by providing a stand on the housing itself, it is possible not only to improve the convenience of the mobile device in use, but also to use the stand as an acoustic reflector. An object of the present invention is to provide a speaker-equipped mobile device that can be used to improve the stereo effect.

  In the speaker-equipped mobile device according to the present invention, speakers are installed on both the left and right sides in the housing. And the stand which supports the housing is provided in the housing, and the stand moves away from the back of the housing as it approaches the left and right ends from the position facing the central portion of the housing. In addition to having inclined sound reflecting surfaces on both the left and right sides, the left speaker is installed facing the left acoustic reflecting surface, and the right speaker is installed facing the right acoustic reflecting surface. ing.

  By adopting this configuration, the stand can be used for leaning the housing, so that AV viewing can be enjoyed without using a separate stand or other article for leaning the mobile device. The stand is provided with left and right sound reflecting surfaces inclined in a certain direction, the left speaker is set to face the left sound reflecting surface, and the right speaker is directed to the right sound reflecting surface. Since it is installed, the sound of the speaker is reflected by the left and right acoustic reflecting surfaces and spread left and right. Therefore, the user can hear sound from a wide range of left and right as compared with the case of directly viewing the sound of the speakers installed on the left and right inside the housing, and the stereo effect at the time of viewing is improved accordingly.

  In the present invention, the stand is housed in a housing accommodated in a recess formed in the housing, and a housing support posture that protrudes toward the back side of the housing outside the recess and supports the housing; It is desirable that it is attached so that it can be withdrawn between. With this configuration, when the mobile device is carried, the stand can be set in the housing storage posture. Since the stand is stored in the recess of the housing, the stand does not get in the way when the mobile phone is carried. Further, when enjoying viewing with the mobile device, there is a convenience that the mobile device can be stood against the stand with the housing supporting posture.

  In the present invention, the stand is provided by a pair of left and right plate-like members attached to the housing so as to be swingable between the housing housing posture and the housing supporting posture with a location near the center of the housing as a fulcrum. It is possible to adopt a configuration in which the back surface of the plate-like member is formed and used as the acoustic reflection surface. With this configuration, since the stand is formed by a pair of left and right plate-like members, the recess provided in the housing for storing the stand can be a narrow space. Therefore, even if the stand is provided in the housing, there is an advantage that the mobile device is not enlarged.

  According to the present invention, since the housing itself is provided with a stand, convenience in use of the mobile device is improved. In addition, since the stereo effect is improved by using the stand as an acoustic reflector, there is no need to attach an extra cover member that increases the weight and size as seen in Patent Document 1 to the housing.

It is a schematic perspective view of the use condition of the mobile device with a speaker concerning the embodiment of the present invention. It is a partially broken plan view of the mobile device for explaining the stereo effect increasing action. It is a partially broken top view of the mobile machine in the stand retracted state. It is the schematic perspective view which illustrated the plate-shaped member of the stand.

  FIG. 1 is a schematic perspective view of a usage state of a speaker-equipped mobile device A according to an embodiment of the present invention, FIG. 2 is a partially broken plan view of the mobile device A for explaining a stereo effect increasing action, and FIG. FIG. 4 is a schematic perspective view illustrating the plate-like member 21 of the stand 20.

  As shown in FIG. 1, the mobile device A has a housing 10 having a substantially rectangular front view with a display 11. The mobile device A is divided into left and right as shown in FIG. 2 or FIG. 12 and 12 are assembled. The installation interval between the pair of speakers 12 and 12 is affected by the width of the housing 10. Therefore, even if a pair of left and right speakers 12 and 12 are installed at the left and right ends of the housing 10 and the distance between them is increased as much as possible, the expansion width of the sound emitted from the speakers 12 and 12 can be reduced. The width corresponds to the width size of 10. In this embodiment, the pair of left and right speakers 12, 12 are installed so as to face the rear of the housing 10.

  A stand 20 is attached to the housing 10. The illustrated stand 20 is formed by plate-like members 21 and 21 made of a pair of left and right flat resin moldings. The housing 10 is provided with recesses 13 and 13 at positions separated from the left and right with respect to the central portion of the rear surface of the housing 10. The left recess 13 includes the left plate-like member 21. The whole can be accommodated, and the entire right side plate-like member 21 can be accommodated in the recess 13 on the right side. Also, the left plate-like member 21 has a rocking fulcrum P1 at one end near the center of the housing 10 in the left recess 13, and the right plate-like member 21 has one end. The portion has a swing fulcrum P2 near the center of the housing 10 in the recess 13 on the right side. Therefore, it is possible to open the left and right plate-shaped members 21 and 21 around the swing fulcrums P1 and P2 to the rear of the rear surface of the housing 10 so that the housing support posture shown in FIG. The housing 2 is provided with opening angle restricting means for hooking the left and right plate-like members 21 and 21 to keep them in the housing supporting posture.

  In the above-described housing support posture, the user holds the left and right speakers 12, 12 while keeping the housing 10 placed on the desk top surface or the like leaning on the plate-like members 21, 21 as shown in FIG. It is possible to enjoy the display image on the display 11 while listening to the sound. On the other hand, it is also possible to keep the left and right plate-like members 21 and 21 in the housing retracted posture in which the left and right recesses 13 and 13 are housed around the swing fulcrums P1 and P2, respectively. The user can enjoy the displayed image on the display 11 while listening to the sounds of the left and right speakers 12 and 12 even in the housing housing posture. In the housing storage posture, the outer surfaces (front surfaces) of the left and right plate-like members 21 and 21 are configured to be flush with the rear surface of the housing 10.

  In this embodiment, the stand 20 is formed by a pair of left and right flat plate-like members 21, 21, and the plate-like members 21, 21 are entirely provided in the housing 10. 13 is housed in the housing 13 as shown in FIG. Therefore, it is only necessary to provide the recess 13 with an internal volume that can accommodate the flat plate-like member 21, so that the recess 13 can be formed in a narrow space in the housing 10. This helps to prevent the housing 10 and thus the mobile device A from becoming large.

  Further, as shown in FIG. 2, when the left and right plate-like members 21 and 21 are opened to the rear of the housing 10 to be in the housing support posture, the inner surface (back surface) of the left plate-like member 21 is The directional direction is crossed diagonally, and the inner surface (back surface) of the right plate piece member 21 crosses the directional direction of the right speaker 12 diagonally, and the inner surfaces of these plate piece members 21, 21. Is useful as the acoustic reflection surfaces 22 and 22. Therefore, when the left and right plate-like members 21 and 21 are maintained in the housing supporting posture, the acoustic reflection surfaces 22 and 22 approach the left and right end portions from the positions facing the central portion of the housing 10. The housing 10 is inclined so as to move backward from the back surface of the housing 10. Therefore, the sound of the left speaker 12 directed to the rear of the housing 10 is reflected by the acoustic reflection surface (inner surface) 22 of the left plate-like member 21, and as indicated by the arrow S1 in FIG. The housing 10 extends outward from the left end portion. Similarly, the sound of the right speaker 12 directed to the rear of the housing 10 is reflected by the acoustic reflection surface (inner surface) 22 of the right plate-shaped member 21, and as indicated by the arrow S2 in FIG. The outer side of the housing 10 extends outward from the right end. When the user directly listens to the sounds of the speakers 12 and 12 installed on the left and right sides in the housing 10, the sound reflecting action of the sound reflecting surfaces 22 and 22 of the left and right plate-like members 21 and 21 is used. In comparison, sound can be heard from a wide range on the left and right, and the acoustic stereo effect during viewing is improved accordingly.

In the mobile device A of the embodiment, as shown in FIG. 3, it is possible to listen to the sounds of the left and right speakers 12, 12 while the left and right plate-like members 21, 21 of the stand 20 are stored in the housing. It is like that. In this case, the left and right sounds 12 and 12 go out to the back side of the housing 10 through the left and right plate-like members 21 and 21. In this regard, as shown in FIG. 4, a sound hole 23 made of a through hole is formed in the plate-like member 21, and the sound of the speaker 12 goes out through the sound hole 23 to the back side of the housing 10. By doing so, there is an advantage that the noise is reduced and the user can listen to a clear sound.
In the embodiment described above, the stand 20 is formed by the pair of left and right plate-like members 21 and 21 that can swing between the housing housing posture and the housing support posture. Then, the stunt may be formed by a single plate-like member fixed to the housing. In that case, the sound that is inclined so that the single plate-shaped member forming the stand moves away from the back of the housing as it approaches the left and right ends from the position facing the center of the housing. It is necessary to have reflective surfaces on both the left and right sides.

A mobile device 10 housing 12 speaker 13 recess 20 stand 21 plate-like member 22 acoustic reflection surface

Claims (3)

In speaker-equipped mobile devices in which speakers are installed on the left and right sides of the housing,
A stand for supporting the housing is provided in the housing, and the stand is inclined so as to move away from the rear side of the housing as it approaches each of the left and right ends from a position facing the central vicinity of the housing. It has acoustic reflection surfaces on both the left and right sides, the left speaker is installed facing the left acoustic reflection surface, and the right speaker is installed facing the right acoustic reflection surface. A mobile device equipped with a speaker.   The stand is extended between a housing retracted position accommodated in a recess formed in the housing and a housing support position that supports the housing by protruding toward the back side of the housing outside the recess. The mobile device with a speaker according to claim 1, wherein the mobile device is removably attached.   The stand is formed by a pair of left and right plate-like members attached to the housing so as to be swingable between the housing posture in the housing and the housing support posture with a location near the center of the housing as a fulcrum. The mobile device with a speaker according to claim 2, wherein the back surface of the plate-like member is used as the acoustic reflection surface.

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