JP4521486B2 - Folding portable terminal device - Google Patents

Description

  The present invention relates to a foldable portable terminal device including two speakers.

In a foldable mobile terminal device, particularly a mobile phone, speakers for listening to music and the like are provided on the display screen side, the back surface side, the side surface, and the like of the housing in addition to for calling.
There is a proposal in which speakers are provided on the upper right and lower left sides of the display screen of the casing so that the casing becomes stereo both vertically and horizontally (see Patent Document 1).
There is also a proposal in which speakers are provided on the display screen side and the back side of the housing (see Patent Document 2).
JP 2003-78601 A JP 2004-96573 A

By the way, what provided the speaker in the display screen side assumes listening to music etc. in the state which opened the cover part housing | casing provided with a display screen with respect to the main-body part housing | casing provided with an operation part. For this reason, as a matter of course, when the casing is folded and the display surface side is closed, the sound from the speaker is trapped inside, and there is a problem that the sound cannot be heard well.
In addition, it is assumed that a speaker provided on the opposite side of the display screen listens to music or the like with the housing folded and the display surface side closed. For this reason, in the state which opened the case, since a sound comes out from a speaker on the back side of a display screen with respect to a user, there exists a problem that the user cannot hear the sound well.

  In this regard, a speaker provided on the side of the housing can hear sound to a certain degree whether the housing is opened or folded, but the speaker is facing sideways, It will diverge. This is still good because it reflects off the wall etc. if it is indoors, but it is not suitable as a speaker for mobile phones that are supposed to be used outdoors, that is, when the housing is open or closed Even so, it is difficult to say that the sound can be heard satisfactorily.

  The problem of the present invention is that in a foldable portable terminal device, the sound from the speaker can be heard very well by the user with the housing open, and the sound from the speaker can be heard even when the housing is closed. Is to sound good to some extent.

In order to solve the above-described problems, the invention described in claim 1 includes, as shown in FIG. 1 to FIG. 5, for example, a main body portion 1 having an operation portion 4 and a lid portion 2 having a display portion 5 are hinged. A foldable portable terminal device that is openably and closably connected via a unit 3, wherein speakers 6 are provided on both sides of the hinge unit 3 on the display unit 5 side of the lid unit 2, and the main body unit 1 and the lid unit in 2 in the folded state, on both sides of the hinge portion 3 side surface of the operation portion 4 side of the main body 1, in order to guide the sound from the front Symbol speaker 6 to the outside, in the direction of the rotation axis of the hinge portion 3 The sound emitting gap 7 is formed so as to incline so that the dent gradually becomes deeper toward the hinge portion 3 .

According to the first aspect of the present invention, in the state in which the lid portion is opened with respect to the main body portion, the sound from the speakers on both sides of the hinge portion is emitted almost toward the front below the display portion of the lid portion. The user can hear the sound from the speaker very well.
In the folded state of the main body and the lid, the speaker is not completely blocked, and the sound from the speakers on both sides of the hinge is almost from the sound emission gap on both sides of the hinge between the main body and the lid. Since the sound is emitted toward the rear, the sound from the speaker can be heard to a certain degree even when the housing is closed by directing the sound emission gap toward the user side.

  The invention according to claim 2 is the foldable portable terminal device according to claim 1, wherein, for example, as shown in FIGS. 1 to 4, the hinge portion 3 is substantially in the width direction of the main body portion 1 and the lid portion 2. It is located in the center.

  According to invention of Claim 2, a speaker can be arrange | positioned using the space vacated on the both sides of the hinge part located in the center of the width direction of a cover part.

  Invention of Claim 3 is a foldable portable terminal device of Claim 1 or 2, Comprising: For example, as shown in FIGS. 1-3, it is a hinge part in the surface at the side of the operation part 4 of the main-body part 1. As shown in FIG. An inclined surface 71 that is inclined toward the opposite side to the operation unit 4 side is formed on both side portions on the 3 side, and the sound emitting gap 7 is formed between the inclined surface 71 and the lid portion 2. It is characterized by being.

  According to the third aspect of the present invention, the main body portion is folded on the main body portion by the inclined surfaces formed by inclining toward the opposite side of the operation portion side on both sides of the hinge portion side on the operation portion side surface. An external sound emitting gap can be secured from the speakers provided on both sides of the hinge portion of the lid portion between the lid portion in the state.

  A fourth aspect of the present invention is the foldable portable terminal device according to the third aspect, wherein, for example, as shown in FIGS. 1 to 3, the inclined surface 71 is substantially centered on the rotation center of the hinge portion 3. It is characterized by having a curved surface shape by an arc.

  According to the fourth aspect of the present invention, the inclined surfaces on both sides of the hinge portion of the main body portion are formed into a curved surface shape by an arc whose center is the rotation center of the hinge portion, whereby the main body portion and the lid portion are rotated with respect to each other. While avoiding interference when moving, a rounded appearance can be obtained.

According to the present invention, in a state in which the housing is opened, the user can hear the sound from the speaker very well by emitting the sound from the speakers on both sides of the hinge portion in the lower part of the display portion to the front. Can do.
And even when the housing is closed, the speaker is not completely blocked, and sound is emitted from the speakers on both sides of the hinge portion substantially rearward from the sound emission gap, thereby reducing the sound emission gap. By facing the user side, there is an advantage that the sound from the speaker can be heard to a certain degree.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the mobile phone to which the present invention is applied is a foldable type in which a main body 1 and a lid 2 are coupled by a hinge 3, and an operation unit 4 using various operation keys is provided on the main body 1. The lid 2 is provided with a display unit 5 using a liquid crystal display screen.

As shown in the drawing, the main body 1 and the lid 2 are configured by a substantially elliptical housing in a plan view, and the surfaces of the housings having the operation unit 4 and the display unit 5 are each planar. The other outer surface of the casing has a rounded curved surface as a whole.
Moreover, the hinge part 3 is located in the housing | casing width direction substantially center of the main-body part 1 and the cover part 2 like illustration.

As shown in FIG. 4, the flat portion having the display portion 5 of the lid portion 2 is provided with speakers 6 indicated by a large number of sound emitting holes in the illustrated example on both side portions on the hinge portion 3 side. It has been. That is, a pair of speakers 6 are provided symmetrically with the hinge portion 3 interposed therebetween.
In this way, the speaker 6 is arranged using the space that is vacant on both sides of the hinge portion 3 located at the approximate center in the width direction of the lid portion 2.

Further, as shown in FIG. 3, sound emission gaps 7 for guiding the sound from the left and right speakers 6 to the outside are provided on both side portions on the hinge portion 3 side in the folded state of the main body portion 1 and the lid portion 2. Each is formed. That is, as shown in FIG. 1 and FIG. 2, it is formed on an inclined surface 71 that is inclined to the rear (backward) in the illustrated example on the side opposite to the operation unit 4 side. As shown in FIG. 2, a sound emitting gap 7 is formed between the lid portion 2 and the sound emitting gap 7.
In addition, the inclined surface 71 has a curved surface shape with an arc that is substantially centered on the center of rotation of the hinge portion 3 as shown in FIGS. 1B and 2B. Thus, the curved shape of the inclined surface 71 gives a roundness of design as the sound emission gap 7 while avoiding interference when the main body 1 and the lid 2 are rotated with respect to each other.

According to the above foldable mobile phone, when the housing is opened, that is, when the lid 2 is opened with respect to the main body 1, as shown in FIG. Thus, the sound from the left and right speakers 6 positioned on both sides of the hinge portion 3 is emitted substantially forward.
Therefore, the user of the cellular phone can listen to the sound from the speakers 6 on the left and right of the hinge unit 3 as a stereo speaker under the display unit 5 as a stereo speaker.

  6 and 7 show an example of the usage state in which the above mobile phone is set in the desktop holder 9. That is, as shown in the drawing, even in a data transmission / reception state in which the main body 1 is set in the desktop holder (cradle) 9 and the lid 2 is opened at the same time as charging and the operation unit 4 is operated, the display is performed based on the data distribution. While looking at the portion 5, the sound from the left and right speakers 6 of the hinge portion 3 can be heard very well as a stereo speaker.

Further, in a state where the casings of the mobile phone are overlapped, that is, in a folded state of the main body 1 and the lid 2, the speaker 6 of the lid 2 is not completely blocked by the main body 1. As shown in b) and FIG. 3, the sound is emitted substantially rearward from the sound emitting gaps 7 on the left and right sides of the hinge portion 3 between the main body portion 1 and the lid portion 2.
Therefore, when the cellular phone is held and the left and right sound emitting gaps 7 are directed toward the front, the sound from the speaker 7 can be heard to some extent even when the housing is closed.

In the above embodiment, the cellular phone is used. However, the present invention is not limited to this and may be applied to other folding portable terminal devices such as a PDA.
In the embodiment, the sound emitting gap is an inclined surface inclined backward (backward), but may be an inclined surface inclined laterally (laterally), and the shape is not limited to a curved surface and is flat. It is possible to adopt an appropriate shape such as only a three-dimensional shape.
In the embodiment, the inclined surface is formed only on the main body, but instead, the inclined surface may be formed only on the lid or on both the main body and the lid.
Furthermore, the number and shape of the speaker sound emission holes are arbitrary, and other details such as a detailed structure including a specific speaker structure can be appropriately changed.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of one Embodiment to which this invention is applied is shown in the front view (a), the side view (b), and the rear view (c) which showed the state which opened the housing | casing in an example of a foldable portable terminal device. is there. FIG. 2 is a front view (a), a side view (b), and a rear view (c) showing a state in which the housing is folded in the foldable portable terminal device of FIG. 1. It is the end elevation which looked at the case of the folded state of Drawing 2 from the hinge part side. It is the front view which showed the housing | casing provided with a speaker in the single item state. It is a perspective view which shows an example of the use condition of a foldable portable terminal device. It is a perspective view which shows the example of a use condition which set the foldable portable terminal device to the desktop holder. It is a side view which shows the example of a use condition which set the foldable portable terminal device to the desktop holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Lid part 3 Hinge part 4 Operation part 5 Display part 6 Speaker 7 Sound emission gap 71 Inclined surface 9 Desktop holder

Claims (4)

A foldable portable terminal device in which a main body portion having an operation portion and a lid portion having a display portion are coupled via a hinge portion so as to be opened and closed,
Provide speakers on both sides of the hinge part on the display part side of the lid,
In the folded state of the main body portion and the lid portion, on both sides of the hinge portion side surface of the operation portion side of the main body portion, to guide the sound from the front SL speaker to the outside, in the direction of the rotation axis of the hinge portion, A foldable portable terminal device characterized in that a sound emitting gap is formed so as to be gradually deepened toward the hinge portion .   The foldable portable terminal device according to claim 1, wherein the hinge portion is positioned substantially in the center in the width direction of the main body portion and the lid portion. An inclined surface that is inclined toward the opposite side of the operation unit side is formed on both sides of the hinge unit side on the operation unit side surface of the main body,
The folding portable terminal device according to claim 1, wherein the sound emitting gap is formed between the inclined surface and the lid.   4. The foldable portable terminal device according to claim 3, wherein the inclined surface has a curved surface shape with an arc substantially centering on a rotation center of the hinge portion.

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