JP2023095754A - speaker device - Google Patents

Abstract

To solve the problem that a speaker device cannot be flexibly utilized since satisfaction is not obtained both in utilization as an illumination apparatus during reading, working or the like and in utilization of sound source voice reproduction with high quality.SOLUTION: A speaker 1 with illumination comprises: a speaker unit 12 including a speaker 125 inside; and an illumination unit 11 arranged above the speaker unit 12 so as to radiate light by a light emission part 114. The illumination unit 11 is provided with a light-transmittable diffuser 115 arranged in a radiation direction of the light emission part 114 and formed to have a nearly conical shape in the radiation direction. The illumination unit 11 is rotatable in a posture where the center of the diffuser 115 is opposed to the center of the speaker 125.SELECTED DRAWING: Figure 9

Description

Applied for application of Article 30, Paragraph 2 of the Patent Act May 11, 2020 https://www. makuake. com/project/albos_light-and-speaker/ [Publications, etc.] Released from May 18 to June 29, 2022 at Makuake SHOP on the 5th floor of the Sogo Yokohama store [Publications, etc.] Reiwa Published on Tsutaya Home Appliances + from May 27 to June 29, 2014 [Publications, etc.] https://store. tsite. jp/tsutaya electronics plus-futako/event/electronics/26860-1657570526. Published on html [Publications, etc.] June 1-June 30, 2022, July 12-18 at b8ta Yurakucho store [Publications, etc.] May 11, 2022 to https://prtimes. jp/main/html/rd/p/000000839.000013943. html [Publications, etc.] On May 11, 2020, https://news. my navi. Published at jp/article/20220511-2334078/ [Publications, etc.] On May 11, 2022, https://www. phile web. com/news/d-av/202205/11/55380. html [Publications] May 11, 2020 https://av. watch. impress. co. jp/docs/news/1406827. html and https://kaden. watch. impress. co. jp/docs/news/1408043. html [Publications, etc.] https://tokusengai.jp on June 5, 2022. Published on com/_tags/albos

Application for application of Article 30, Paragraph 2 of the Patent Law [Publications, etc.] https://www.2020.5.15. good press. jp/news/450484/ [Publications, etc.] https://dime.jp on May 15, 2022. Published at jp/genre/1385793/ [Publications, etc.] https://getnews.jp on May 15, 2022. jp/archives/3274139/albos11 [Publications, etc.] https://tabi-labo.jp on May 21, 2022. com/303485/wt-canon-albos [Publications, etc.] https://online.com on May 15, 2022. stereo sound. co. jp/_tags/albos [Publications, etc.] https://getnavi.jp on May 11, 2022. Published at jp/av-2/739306/ [Publications, etc.] Published on June 3, 2022 on pages 56-57 of Shinyusha Co., Ltd.'s July 2022 issue of Home Appliance Criticism [Publications, etc.] Order Announced on page 114 of the July 2022 issue of Tokuma Shoten Co., Ltd.'s monthly Goods Press on June 6, 2022 [Publications, etc.] On June 16, 2022, World Photo Press Co., Ltd. Monomagazine 2022 Announced in the 7/2 issue [Publications, etc.] Announced in the August 2022 issue of One Publishing Co., Ltd. GetNavi on June 23, 2022 [Publications, etc.] Radio Co., Ltd. on August 24, 2024 Announced in the newspaper company's daily Dempa Shimbun [Publications, etc.] On May 11, 2020, https://www. youtube. com/watch? v=nPk4IP08nGY and https://www. youtube. com/watch? Published at v=wGbm7Z4nO4A

The present invention relates to a speaker device such as a portable wireless speaker.

In recent years, wireless speakers have been proposed in which a lighting device is built into an omnidirectional wireless speaker that spreads out 360 degrees, creating the emotional feeling of music with a faint light, or a wireless speaker that changes the amount of light along with the music (see, for example, patent documents 1).
Also, a speaker device has been proposed in which a speaker with good directional characteristics and a lighting lamp are combined (for example, Patent Document 2).

Conventional wireless speakers such as those described above are not intended to be used as spotlights to illuminate food on a table, or to be used while reading or working at a desk. However, by increasing the amount of light, it is conceivable that it can be used not only as a wireless speaker but also as a lighting fixture for reading.

JP 2016-19129 A Utility Model Registration No. 3027866

However, since conventional wireless speakers are not intended for use in reading or working, they cannot illuminate any place desired by the user. Therefore, it was not possible to obtain satisfaction in both the use as a lighting fixture for reading and working, and the use for reproducing high-quality sound source voices, and it was not possible to use it flexibly. Therefore, it can be used as a lighting fixture for reading or working by illuminating any place desired by the user, or it can be used to reproduce high-quality sound source voices. And a flexible device is desired.

The present invention includes a first unit having a speaker inside, and a second unit provided above the first unit and emitting light from a light emitting section, and the second unit includes the light emitting section. A light-transmitting diffusion plate formed in a substantially conical shape in the irradiation direction is provided in the irradiation direction, and the second unit is rotatable so that the center of the diffusion plate faces the center of the speaker. Characterized by what is possible.

According to the present invention, it can be used to illuminate any place desired by the user, to reproduce high-quality sound sources and voices, and to be used in a wide variety of scenes. A speaker device can be provided.

The perspective view which shows an example of a speaker with illumination. Six views showing an example of a speaker with illumination. FIG. 2 is a perspective cross-sectional view of a speaker with illumination; Sectional drawing of a speaker with illumination. FIG. 10 is a bottom view showing an example of a detachment phase of the battery cover of the illuminated speaker; The figure which shows a mode that the position and direction of a lighting unit are changed and used. The figure which shows a mode that the position and direction of a lighting unit are changed and used. The figure which shows a mode that the position and direction of a lighting unit are changed and used. The front view and sectional drawing of a speaker with illumination. FIG. 4 is a diagram for explaining an example of the configuration of a light shielding sheet;

[First Embodiment]
An illuminated speaker 1 according to the present embodiment will be described below with reference to FIGS. 1 to 5. FIG. As the illuminated speaker of the present embodiment, a speaker of a size that can be placed on a desk or desk will be described, but the present invention is not limited to this. For example, it may be one that can be used by connecting a musical instrument or the like at a live house, an event venue, or the like.

FIG. 1 is a perspective view showing an example of an illuminated speaker showing an embodiment of the present invention.
In FIG. 1, (a) is a perspective view seen diagonally from upper left, (b) is a perspective view seen from diagonally upper right, (c) is a perspective view seen from diagonally lower left, and (d) is a perspective view seen diagonally from lower right 1 is a perspective view seen from .

FIG. 2 is a six-sided view showing an example of the illuminated speaker of the present embodiment.
2, (a) is a front view, (b) is a left side view, (c) is a right side view, (d) is a rear view, (e) is a plan view, and (f) is a bottom view.

FIG. 3 is a perspective cross-sectional view of the illuminated speaker of this embodiment.
FIG. 4 is a cross-sectional view of the illuminated speaker of this embodiment.
FIG. 5 is a bottom view showing an example of the detachment phase of the battery cover of the illuminated speaker of the present embodiment.

The illuminated speaker 1 of the present embodiment has a lighting unit 11, a speaker unit 12, a battery unit 13, and a rotating pedestal 14 from above, and arms 15 on the left and right.
The illumination unit 11 includes a light emitting part (an LED light in this embodiment, but not limited to this) inside, and emits light downward in the state shown in FIGS. 1 and 2 .

The speaker unit 12 is a 360-degree omnidirectional speaker. The speaker unit 12 has a mesh cover 121 on the top, a speaker 125 arranged upward, a beam member 122 on the bottom, a passive radiator 126 arranged downward, and the like. A slit 123 is provided in the beam member 122 . The speaker unit 12 outputs sound through the mesh cover 121 and slits 123 . The speaker unit 12 is connected to the battery unit 13 with a beam member 122 .

The battery unit 13 has a battery, which will be described later, and supplies power to the lighting unit 11 and the speaker unit 12 . The battery unit 13 is rotatable (or rotatable) with respect to the rotating pedestal 14 with the horizontal plane (the mounting plane of the apparatus) as the direction of rotation.

The arm 15 is rotatably supported by the battery unit 13 and rotatably supports the lighting unit 11 at its tip.
The battery unit 13 has a body 131 with approximately the same diameter as the body 124 of the speaker unit 12 .

As shown in FIGS. 3 and 4, the battery unit 13 has a rechargeable battery 132 and a substrate 133. As shown in FIG. A power supply circuit and the like are provided on the substrate 133 . A USB terminal 138 is provided on the rear surface of the battery unit 13 as shown in FIG. Note that the USB terminal 138 is, for example, a type C, but other types of terminals may be used. Also, a configuration in which data communication with an external device is possible via the USB terminal 138 may be employed.

A bottom portion 135 of the battery unit 13 has an opening for mounting a replaceable battery 132, and a battery cover 136 is detachably attached to the opening. By removing the battery cover 136, the battery 132 can be replaced. The battery unit 13 is rotatably supported by the rotating pedestal 14 . Description will be made below with reference to FIG.

As shown in FIGS. 5A and 5B, the bottom portion 135 and the battery cover 136 horizontally rotate (or rotate) with respect to the rotating base 14 . During the rotation, the battery cover 136 is attached to the bottom 135 so as to rotate (or pivot) about the intersection of its diagonals.

In the present embodiment, the size of the battery cover 136 (the length of the diagonal that is the longest part (corresponding to the diameter of rotation)) is provided at the bottom of the rotating pedestal 14 in order to replaceably mount a larger battery. It is configured to be larger than the diameter (140a) of the hole provided. Only at the position shown in FIG. 5A, the diameter of the hole is increased to the extent that the battery cover 136 can be attached and detached (shaped like 140b).

That is, when the rotation phase of the battery unit 13 with respect to the rotary base 14 is the phase shown in FIG. 5A or the phase rotated 180 degrees from the phase shown in FIG. Can pass through holes. On the other hand, when the rotation phase of the battery unit 13 with respect to the rotating base 14 is the phase shown in FIG. 5A or the phase rotated 180 degrees from the phase shown in FIG. The corner of the battery cover 136 is caught in the hole at the bottom of the rotating base 14 and cannot be passed through.
Therefore, the battery cover 136 can be removed only in the phase of FIG. 5(a) or a phase rotated 180 degrees from FIG. 5(a). That is, the battery 132 can be replaced only in the phase of FIG. 5(a) or the phase rotated 180 degrees from FIG. 5(a).

With such a configuration, it is possible to increase the size of the battery cover 136, thereby allowing a larger battery to be replaceably mounted. That is, in the illuminated speaker configured as described above, the size of the battery cover 136 (the length of the diagonal that is the longest part) can be made larger than the diameter of the hole provided in the bottom of the rotary base 14, and the size of the speaker can be increased. of batteries can be replaceably mounted. As a result, long-time battery drive is enabled, and usability can be improved. Further, the area of the bottom surface of the rotating base 14 can be increased, and the stability of the illuminated speaker 1 as a portable device can be improved. In addition, by preventing the battery cover 136 from coming off unless it is in a specific rotational phase, it is possible to reduce the chances of the battery cover 136 coming off due to an unexpected impact, etc., while carrying. can.

In the above configuration, the battery cover 136 has a rectangular shape and is attached at a position where the intersection (136b) of its diagonal lines (136a) corresponds to the center of rotation with respect to the rotation base 14. has a short diameter portion (140a) shorter than the diagonal length of the battery cover 136 and a long diameter portion (140b) longer than the diagonal length of the battery cover 136. When the rotary base 14 is in a specific rotational phase, the diagonal line (136a) of the battery cover 136 is positioned at the long diameter portion (140b) of the hole in the rotary base 14, and the rotary base 14 is not in the specific rotational phase. In this case, the diagonal line (136a) of the battery cover 136 is aligned with the minor diameter portion (140b) of the hole in the rotary base 14, so that when the rotary base 14 is in a specific rotational phase (Fig. 5(a) )), the battery cover 136 can be removed (that is, the battery 132 can be replaced).

However, the shape of the battery cover 136 is not limited to the rectangular shape, and may be other shapes that match the shape of the battery 132 . For example, other polygonal shapes, non-perfect circular shapes (circular shapes having a long diameter portion and a short diameter portion), and the like may be used. In that case, the hole provided in the rotating base 14 has a shape having a short diameter portion shorter than the rotation diameter of the battery cover 136 and a long diameter portion longer than the rotation diameter of the battery cover 136 . When the rotatable base 14 is in a specific rotational phase, the portion corresponding to the rotational diameter of the battery cover 136 (that is, the outermost portion with respect to the center of rotation) is positioned at the long diameter portion of the hole of the rotatable base 14. However, when the rotating base 14 is not in a specific rotational phase, the portion corresponding to the rotating diameter of the battery cover 136 is positioned at the minor diameter portion of the hole of the rotating base 14 . As a result, the battery cover 136 can be removed and the battery 132 can be replaced only when the rotating base 14 is in a specific rotational phase.

As described above, the illuminated speaker 1 of the present embodiment is a vertical wireless speaker, and has an illumination unit whose position and irradiation angle can be changed on the upper part, and is used not only as an audio but also for reading and working. It can also be used as lighting for audio equipment and lighting, and by installing a large battery, it can be used for a long time even in places where it is difficult to secure a power source, making it suitable as a desk speaker for a table. is. Although the illuminated speaker has been described as an example, the present invention can also be applied to a speaker device that does not include the lighting unit 11 (a speaker device that includes the speaker unit 12, the battery unit 13, and the rotating base 14).
In general, when the light intensity of a wireless speaker with illumination is sufficient for reading or working, the power consumption becomes large, and it is necessary to install a large battery. Also, even when used as a wireless speaker, it was necessary to install a large battery in order to enable long-term use. Moreover, it is desirable that the battery to be mounted can be replaced without disassembling the device. Conventional wireless speakers were not designed for reading or working purposes, so they were not configured to be replaceable with a large, long-lasting battery for such purposes. By increasing the size of the device, it may be possible to install a large replaceable battery, but there were problems such as it being unsuitable for use as a tabletop speaker for a table, etc. This problem is solved by this embodiment as described above.
Therefore, it is possible to provide a speaker device equipped with a large battery while preventing an increase in external dimensions as a wireless speaker. In addition, it is possible to provide an illuminated speaker that can be used not only as a wireless speaker but also as a lighting fixture for reading, and that can be used for a long time regardless of the place of use.

[Second embodiment]
6 to 8 are diagrams showing how the lighting unit 11 in the speaker device (illuminated speaker 1) of the present embodiment is used by changing the position and orientation of the lighting unit 11. FIG.
The illuminated speaker 1 of the present embodiment includes a speaker unit 12 (first unit) having a speaker 125 inside, a lighting unit 11 (second unit) provided above the speaker unit 12, and a and a connected battery unit 13 (third unit). The illumination unit 11 includes a light emitting part (in this embodiment, an LED light (LED board 114), but not limited to this), and emits light downward in the state shown in FIGS. 1 and 2. . In the illuminated speaker 1, a hinge 137 (FIGS. 3 and 4) is provided inside the battery unit 13 to rotatably support the arm 15. As shown in FIG. In the illuminated speaker 1, a hinge 113 (FIGS. 3 and 4) is provided inside the lighting unit 11 to rotatably support the lighting unit 11. As shown in FIG. With such a configuration, in the illuminated speaker 1, the arm 15 and the illumination unit 11 are freely rotatable. Therefore, it is possible for the user to use the illuminated speaker 1 as a lighting fixture for reading or working by illuminating any place desired by the user.

9A and 9B are a front view and a sectional view of the illuminated speaker 1. FIG.
In FIG. 9, (a) is a front view of the illuminated speaker 1, and (b) is a cross-sectional view of the illuminated speaker 1 taken along the cut plane AA shown in (a).
In addition, (c) is a cross-sectional view of the illuminated speaker 1 cut along the cut plane BB shown in (a), and (d) is an enlarged view of the DT1 portion of the cut plane shown in (c). It corresponds to a cross-sectional view of a portion where the arm 15 is connected.
In addition, (e) is a cross-sectional view of the illuminated speaker 1 cut along the cut plane CC shown in (a), and (f) is an enlarged view of the DT2 portion of the cut plane shown in (e). This corresponds to a cross-sectional view of an upper portion of the portion where the arm 15 is connected.

As shown in FIGS. 9A and 9B, a diffuser 115 (diffusion plate) is provided below the lighting unit 11 .
The diffuser 115 is made of, for example, a milky-white material that can transmit light, and is formed in a substantially conical shape (tapered shape) facing downward (that is, in the direction in which light is emitted from the lighting unit 11) as shown in the figure. , has the effect of diffusing the irradiation light from the light emitting unit 114 in all directions.

Also, when the diffuser 115 takes a posture in which the center of the diffuser 115 and the center of the speaker 125 face each other and are substantially aligned as shown in FIG. This has the effect of diffusing the irradiation light from the light emitting unit 114 in all directions while preventing the frontal reflection of the light from the light emitting unit 114 . Further, as shown in FIG. 7C, the diffuser 115 may be configured so that the curvature changes at the boundary 115a so as to diffuse light and sound at an optimum angle. In this case, the inner side of the boundary 115a may be a flat surface that does not have a diffusion effect to the extent that it does not affect sound reflection. Also, a configuration in which a camera is provided inside the boundary 115a or the like may be employed.
Furthermore, a configuration in which an audio input section (not shown) having a microphone inside, etc. is provided in front of the lighting unit 11 may be employed.

Further, as shown in FIGS. 6 to 8, in the illuminated speaker 1 of the present embodiment, for example, the arm 15 rotates within a range of -25 degrees to 25 degrees (the angle in FIG. 5) with the vertical direction being 0 degrees. Possible, the lighting unit 11 can rotate from -90 degrees to 180 degrees (the angle shown in FIG. 8) with the state shown in FIG. In addition, the illumination by the illumination unit 11 is dimmable, and for example, the brightness can be switched between neutral white and warm color in a plurality of steps. In addition, the illuminated speaker 1 of the present embodiment can easily change the position and irradiation angle of the lighting unit 11 on the top of the device with one hand without supporting the device body with the hand, so that the direction desired by the user can be changed. can be illuminated freely.
By changing the position and irradiation angle of the illumination unit 11 as described above, the reflection of the sound output from the speaker 125 changes, the directivity changes, and the sound quality changes. That is, the user can change the sound quality by changing the position and irradiation angle of the lighting unit 11 . Since the lighting unit 11 is formed in a cylindrical shape and the diffuser 115 is formed in a conical shape, even if the angle of the lighting unit 11 is any angle from -90 degrees to 90 degrees, the exit of the speaker 125 and the lighting The faces of the unit 11 never face each other.

7 to 180 degrees shown in FIG. 8, the sound output from the speaker 125 is reflected in a specific direction on the top surface of the lighting unit 11, and the speaker It is also possible to use such that directivity is given to . By providing directivity, for example, it is possible to improve the easiness of listening to a conversation in a video conference (TV conference) or the like.
In this way, the user can change the sound quality and directivity according to the purpose of use, such as listening to music or video conferencing.

As described above, in the illuminated speaker 1 of the present embodiment, the arm 15 is rotatably attached to the illumination unit 11 in order to realize a configuration in which the position and irradiation angle of the illumination unit 11 can be freely changed. . The lighting unit 11 is provided with a hole through which the arm 15 is attached, and the arm 15 is inserted into the hole. Therefore, there is concern that the light from the lighting section (LED substrate 114) inside the lighting unit 11 may leak through the mounting portion of the arm 15 (the gap between the hole and the arm 15). In order to prevent this, in this embodiment, a light shielding sheet 900 as shown in FIG. 10 is provided at the mounting portion of the arm 15 of the illumination unit 11 as shown in FIGS. 9(d) and (f).

The light-shielding sheet 900 is a ring-shaped light-shielding sheet having a through-hole with a diameter approximately the same as the diameter of the arm 15 . The light shielding sheet 900 is arranged so as to curve along the inner surface of the cylindrical housing of the lighting unit 11, and the arm 15 penetrates through the through hole of the light shielding sheet 900. It will be sandwiched between At that time, the light shielding sheet 900 is made to match the outer diameter of the arm 15 so that there is no gap between the inside of the ring of the light shielding sheet 900 and the arm 15 .
9(d) and 9(f) show a state in which the light shielding sheet 900 is attached to the front right arm attachment portion of the lighting unit 11. A light-shielding sheet 900 is also attached.

The light shielding sheet 900 will be described below.
10A and 10B are diagrams illustrating an example of the configuration of the light shielding sheet 900. FIG.
10, (a) is a perspective view of the light shielding sheet 900, (b) is a plan view, (c) is a side view, and (d) is a sectional view.

As shown in FIGS. 10(a) and 10(b), the light shielding sheet 900 has a ring shape, and the arm 15 is arranged so as to pass through the inside of the ring without gaps.
As shown in FIG. 10C, the light shielding sheet 900 is composed of a single-sided PET sheet attached cushion material 901 and a light shielding tape 902 . PET is an abbreviation for polyethylene terephthalate.

Furthermore, as shown in FIG. 10(d), the single-sided PET sheet-attached cushion material 901 is composed of a PET film 901-1 and a polyurethane foam 901-2.
The light-shielding tape 902 is composed of a black polyester film 902-1 and a black acrylic adhesive 902-2. pasted.

Since the portion where the arm 15 is attached to the lighting unit 11 is a movable portion, smooth movement is required. The light shielding sheet 900 arranged at the mounting portion of the arm 15 is arranged in a state of being sandwiched between the inner surface of the housing of the illumination unit 11 and the connecting portion at the tip of the arm 15 . Therefore, by making the surface of the black polyester film 902-1 of the light shielding sheet 900 slippery to increase the slidability, smoother movement can be realized. Also, light-shielding tapes 902 with high slidability may be attached to both sides of the single-sided PET sheet-attached cushion material 901 to further enhance the slidability and light-shielding properties. That is, the light-shielding sheet 900 may have a configuration in which a cushion material 901 and a sheet (light-shielding tape 902) having higher slidability than the cushion are adhered to both sides of the cushion material 901 .

In this way, the ring-shaped light shielding sheet 900, which can be curved along the inner surface of the housing of the lighting unit 11 and into which the outer diameter of the arm 15 can be inserted without gaps, is attached to the arm 15 on the inner surface of the housing of the lighting unit 11. By mounting along the inner surface of the housing at the mounting position, it is possible to prevent the light from the lighting section inside the lighting unit 11 from leaking from the mounting portion of the arm 15 .

In addition, in the illuminated speaker 1 of the present embodiment, the arm 15 for changing the position and irradiation angle of the illumination unit 11 is connected to the battery unit 13 and the illumination unit 11, and is separated from the speaker unit 12. (the speaker unit 12 is not contacted). That is, for example, the U-shaped arm 15 has one end rotatably supported by the battery unit 13 without contacting the speaker unit 12, and the other end rotatably supports the lighting unit 11. To support. Therefore, it is possible to prevent the vibration of the speaker unit 12 from being transmitted to the lighting unit 11 via the arm 15 and causing flickering or the like. In particular, when the lighting unit 11 is equipped with a camera and a microphone, the vibration transmitted to the lighting unit 11 may affect the image quality of the image captured by the camera and the sound quality of the sound input by the microphone. The influence of these vibrations on image quality and sound quality can be suppressed.

As described above, it can be used not only as a wireless speaker, but also as a lighting fixture for reading by illuminating any place desired by the user. It is possible to provide a user-friendly speaker with illumination that can be easily deployed with one hand without supporting the speaker. In this way, high-performance and flexible illuminated speakers can be used in a wide variety of situations, such as to illuminate any location desired by the user, or to reproduce high-quality sound sources. can provide.

The various configurations and contents described above are not limited to these, and needless to say, various configurations and contents may be configured according to the application and purpose.
The present invention is not limited to the above embodiments, and various modifications (including organic combinations of each embodiment) are possible based on the gist of the present invention, and they are excluded from the scope of the present invention. isn't it. In other words, the present invention includes all configurations obtained by combining each of the above-described embodiments and modifications thereof.

1 Lighted Speaker 11 Lighting Unit 12 Speaker Unit 13 Battery Unit 14 Rotating Base 15 Arm 115 Diffuser (Diffusion Plate)
125 Speaker 900 Light shielding sheet

Claims (6)

a first unit having a speaker inside;
a second unit that is provided above the first unit and emits light from a light emitting unit;
The second unit is provided with a light-transmitting diffusion plate formed in a substantially conical shape in the irradiation direction of the light emitting unit,
The speaker device according to claim 1, wherein the second unit is rotatable so that the center of the diffusion plate and the center of the speaker face each other. a third unit connected to the bottom of the first unit;
an arm rotatably supported by the third unit and rotatably supporting the second unit at its distal end;
The speaker device according to claim 1, characterized by comprising: The housing of the second unit is provided with a hole through which the arm is inserted in the mounting portion of the arm,
A light shielding sheet having a through hole with a diameter approximately the same as the diameter of the arm is arranged along the inner surface of the housing such that the arm inserted from the hole of the housing passes through the through hole,
3. The speaker device according to claim 2, wherein the light shielding sheet blocks a gap generated between the arm and the hole in the housing. The housing has a curved tubular shape,
4. The speaker device according to claim 3, wherein the light shielding sheet is attached in a curved state along the inner surface of the housing. 5. The speaker device according to claim 3, wherein the light-shielding sheet is composed of a cushion and sheets having higher slidability than the cushion on both sides of the cushion. The arm has a U-shape, one end of which is rotatably supported by the third unit without contacting the first unit, and the other end of which rotates the second unit. 6. The speaker device according to any one of claims 2 to 5, wherein the speaker device is supported so as to be possible.

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