JP2021090144A - Wearable speaker system - Google Patents

Abstract

To realize a wearable speaker system for issuing sound with narrow directivity.SOLUTION: A first guide part (14) is extended to be separated from a speaker (13) from a side of a first end (131) in the speaker 13 to a side of a center (161) of an opening (16). A second guide part (15) is extended asymmetrically to the first guide part (14) from a side of a second end (132) in the speaker (13).SELECTED DRAWING: Figure 6

Description

The present invention relates to a wearable speaker system that is worn and used by a user on a part of the body other than the ear.

In a speaker system, a large-diameter speaker or headphones may be used to obtain a sense of presence. However, when using a speaker system having a large-diameter speaker, a certain amount of space is required. Further, when headphones are used, since the headphones are used so as to sandwich both ears of the user, a feeling of fatigue is given to the user when the usage time is long.

Therefore, conventionally, a wearable speaker system that is worn on the user's body and used without blocking the user's ears has been proposed. In Patent Document 1, as an example of the system, a neck hanging portion hung from the back of the neck to the chest side and one end and / or the other end located on the neck hanging portion side are located on the rear side of the neck. A speaker which is arranged from the central portion and includes one or a plurality of speaker portions which are mounted on the neck when the neck hanging portion is hung from the back of the neck to the chest side. The device is disclosed.

Japanese Unexamined Patent Publication No. 2008-263374

In the technique of Patent Document 1, the speaker device does not have a structure for collecting the sound output from the diaphragm of the speaker unit in the direction of the user's ear. Therefore, the omnidirectional sound is emitted from the speaker unit, which may cause annoyance to the user's surroundings.

One aspect of the present invention is to realize a wearable speaker system that emits narrowly directional sound.

The wearable speaker system according to one aspect of the present invention is a wearable speaker system having a U-shaped enclosure in order to solve the above-mentioned problems, and is a speaker in which an opening is formed in front and a first in the speaker. From the first guide portion extending from the one end side toward the center side of the opening toward the center side of the opening and the second end side facing the first end portion of the speaker, the first end It is characterized in that it includes a second guide portion that extends asymmetrically with the first guide portion with reference to a surface that is orthogonal to a straight line connecting the portion and the second end portion and passes through the center of the opening. There is.

According to one aspect of the present invention, it is possible to realize a wearable speaker system that emits narrowly directional sound.

It is a front view which shows the whole wearable speaker system which concerns on Embodiment 1 of this invention. It is a front view which shows the whole wearable speaker system in the state which the speaker unit which concerns on Embodiment 1 of this invention is exposed. It is a perspective view which shows the structure of the speaker unit which concerns on Embodiment 1 of this invention. It is a perspective view which shows the structure of the speaker unit which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the cross section of the right lateral part of the neck which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the cross section of the speaker unit which concerns on Embodiment 1 of this invention. It is a figure which shows the user who put on the wearable speaker system which concerns on Embodiment 1 of this invention. It is a top view which shows the upper surface of the speaker unit which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the cross section of the speaker unit which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the cross section of the speaker unit which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the cross section of the speaker unit which concerns on Embodiment 3 of this invention. It is a front view which shows the whole wearable speaker system in the state which the speaker unit which concerns on Embodiment 3 of this invention is exposed. It is sectional drawing which shows the cross section of the speaker unit which concerns on Embodiment 4 of this invention.

[Embodiment 1]
[Overall configuration of wearable speaker system 1]
FIG. 1 is a front view showing the entire wearable speaker system 1 according to the first embodiment of the present invention. As shown in this figure, the wearable speaker system 1 includes an enclosure 2. The enclosure 2 has a substantially U-shape (U-shape) when viewed from the front. The shape of the enclosure 101 when viewed from the front can also be expressed as a horseshoe shape, an inverted U shape, or the like.

The enclosure 101 includes a neck right lateral portion 21R, a neck left lateral portion 21L, and a neck rear portion 22. The neck right lateral portion 21R and the neck left lateral portion 21L each have a tip portion and face each other in the enclosure 2. The rear neck portion 22 is connected to each end on the opposite side of the tip of the right lateral portion 21R of the neck and the left lateral portion 21L of the neck, and is substantially orthogonal to the right lateral portion 21R of the neck and the left lateral portion 21L of the neck. ing. When using the wearable speaker system 1, the rear neck portion 22 is arranged on the rear side of the user's neck, the right lateral portion 21R of the neck is arranged on the right right side of the user (above the right shoulder), and the left lateral portion 21L of the neck is arranged on the user's right side. It is placed on the left side (above the left shoulder) on the neck.

The back neck portion 22 is made of a flexible member. The wearable speaker system 1 can be easily worn around the user's neck by slightly bending the rear neck portion 22 when the user wears the wearable speaker system 1. On the other hand, the neck right lateral portion 21R and the neck left lateral portion 21L are composed of members that are harder than the neck rear portion 22.

In addition to the enclosure 2, the wearable speaker system 1 further includes a speaker cover 4R, a speaker cover 4L, a speaker unit 10R, and a speaker unit 10L. Of these, only the speaker cover 4R and the speaker cover 4L are shown in FIG. The speaker cover 4R and the speaker unit 10R are arranged on the right side portion 21R of the neck of the enclosure 2. The speaker cover 4L and the speaker unit 10L are arranged in the neck left lateral portion 21L of the enclosure 2. The speaker unit 10R is arranged inside the neck right lateral portion 21R, and the speaker cover 4R is arranged on the surface side of the neck right lateral portion 21R so as to cover the speaker unit 10R. The speaker unit 10L is arranged inside the neck left lateral portion 21L, and the speaker cover 4L is arranged on the surface side of the neck left lateral portion 21L so as to cover the speaker unit 10L.

FIG. 2 is a front view showing the entire wearable speaker system 1 in a state where the speaker unit 10R according to the first embodiment of the present invention is exposed. In FIG. 2, a part of the neck right lateral portion 21R and the speaker cover 4R are removed from the neck right lateral portion 21R, and the speaker unit 10R is exposed in the enclosure 2. As shown in this figure, the speaker unit 10R is arranged below the speaker cover 4R in the enclosure 2.

(Appearance of speaker unit 10R)
FIG. 3 is a perspective view showing the configuration of the speaker unit 10R according to the first embodiment of the present invention. As shown in this figure, the speaker unit 10R includes a lower box 11, an upper box 12, a speaker 13, a first guide portion 14, and a second guide portion 15.

The speaker 13 has a diaphragm (not shown), and emits sound by vibrating the diaphragm. The speaker 13 has an audio output surface corresponding to the surface of the diaphragm. The speaker 13 is arranged inside the speaker unit 10R with the audio output surface of the speaker 13 facing the upper part of the speaker unit 10R. In other words, the speaker 13 is arranged in an internal space surrounded by the lower box 11 and the upper box 12. An opening 16 is formed in front of the speaker 13 (that is, in front of the audio output surface). The opening 16 has a role of emitting the sound output from the speaker 13 to the outside of the speaker unit 10R.

The lower box 11 and the upper box 12 prevent leakage of sound emitted from the back surface of the speaker unit 10R and having a phase opposite to that of the sound emitted from the diaphragm of the speaker 13. Further, the bass from the speaker 13 is enhanced by resonance. The speaker 13 is adhered to the upper box 12 using a sticker (not shown). As a result, the speaker 13 is fixed in the speaker unit 10R, and the airtightness in the speaker unit 10R is ensured. The first guide unit 14 and the second guide unit 15 will be described later.

FIG. 4 is a perspective view showing the configuration of the speaker unit 10L according to the first embodiment of the present invention. The speaker unit 10L is symmetrical with the speaker unit 10R, and its components are the same as the components of the speaker unit 10R. Therefore, the description of the speaker unit 10L will be omitted.

(Cross-sectional configuration of speaker unit 10R)
FIG. 5 is a cross-sectional view showing a cross section of the neck right lateral portion 21R according to the first embodiment of the present invention. FIG. 5 shows a cross section of the AA ′ portion in the neck right lateral portion 21R shown in FIG. The right side of FIG. 5 corresponds to the tip end side of the enclosure 2, and the left side of FIG. 5 corresponds to the other side facing the tip end side of the enclosure 2. As shown in this figure, the speaker unit 10R has a neck right lateral portion with the lower box 11 facing the lower side of the neck right lateral portion 21R and the upper box 12 facing the upper side of the neck right lateral portion 21R. It is arranged in 21R. Further, the first guide portion 14 and the second guide portion 15 are arranged between the speaker 13 and the speaker cover 4R.

FIG. 6 is a cross-sectional view showing a cross section of the speaker unit 10R according to the first embodiment of the present invention. FIG. 6 shows a cross section of the AA ′ portion in the speaker unit 10R shown in FIG. The right side of FIG. 6 corresponds to the tip end side of the enclosure 2, and the left side of FIG. 6 corresponds to the other side facing the tip end side of the enclosure 2. In the speaker unit 10R, the speaker 13 is arranged in the enclosure 2 with the first end 131 of the speaker 13 facing the tip side of the enclosure 2. In other words, the speaker 13 is arranged with the second end 132 facing the first end 131 of the speaker 13 facing the front end side and the opposite side of the enclosure 2. That is, the first end 131 is located farther from the tip of the enclosure 2 than the second end 132, and the second end 132 is closer to the tip of the enclosure 2 than the first end 131.

Both the first guide unit 14 and the second guide unit 15 have a role of guiding the sound output from the speaker 13 to the outside of the speaker unit 10R from the opening 16 of the speaker 13. The first guide portion 14 is arranged on the first end portion 131 side of the speaker unit 10, and the second guide portion 15 is arranged on the second end portion 132 side. As described above, the first guide portion 14 is arranged at a position farther from the tip of the enclosure 2 than the second guide portion 15. Further, the second guide portion 15 is arranged at a position closer to the tip of the enclosure 2 than the first guide portion 14.

As shown in FIG. 6, the first guide portion 14 extends from the first end portion 131 of the speaker 13 toward the center 161 side of the opening 16 so as to be away from the speaker 13. The second guide portion 15 extends from the second end portion 132 facing the first end portion 131 of the speaker 13 toward the outside of the opening 16 so as to be away from the speaker 13. As described above, the second guide portion 15 has a surface 162 orthogonal to the straight line 162 connecting the first end portion 131 and the second end portion 132 and orthogonal to the center 161 of the opening 16 from the second end portion 132. As a reference, it extends asymmetrically with the first end 131. Further, as shown in FIG. 6, the first guide unit 14 is superimposed on the speaker 13, but the second guide unit 15 is not superimposed on the speaker 13.

As shown in FIG. 6, the side surface of the first guide portion 14 facing the speaker 13 is curved so as to bulge toward the speaker 13. Further, the side surface of the second guide portion 15 on the opening 16 side is curved so as to bulge toward the opening 16 side.

(Direction of sound wave 30)
As shown in FIG. 6, the sound wave 30 of the sound output from the speaker 13 travels toward the outside of the opening 16 while being reflected by the first guide unit 14 and the second guide unit 15, respectively. At that time, since the first guide portion 14 and the second guide portion 15 extend in asymmetrical directions, the sound reflection direction in the first guide portion 14 and the sound reflection direction in the second guide portion 15 However, it becomes a contrast. As a result, as shown in FIG. 7, the sound wave 30 can be advanced in a predetermined direction defined by each reflection direction and oblique to the emission direction of the sound output surface of the speaker 13. Further, by appropriately adjusting the stretching directions of the first guide unit 14 and the second guide unit 15, the traveling direction of the sound wave 30 can be changed to a desired direction different from the radiation direction of the sound output surface of the speaker 13. ..

(Sound aggregation direction)
FIG. 7 is a diagram showing a user wearing the wearable speaker system 1 according to the first embodiment of the present invention. As shown in this figure, when the user wears the wearable speaker system 1, the position of the speaker unit 10R is behind the user's right ear. As a result, the position of the speaker 13 can be further separated from the tip of the enclosure 2, so that even if the microphone is provided at the tip of the enclosure 2, it is possible to prevent the speaker 13 and the microphone from interfering with each other. Since the speaker unit 10R includes the first guide unit 14 and the second guide unit 15, the sound output from the speaker 13 can be directed to the front direction of the speaker 13 as shown by an arrow in FIG. .. As a result, the sound of the speaker 13 can be aggregated toward the user's right ear in front of the speaker 13. Although not particularly shown, the speaker unit 10L can similarly collect the sound output from the speaker 13 of the speaker unit 10L toward the user's right ear in front of the speaker 13.

(Main effects)
Since the wearable speaker system 1 according to the present embodiment includes the first guide unit 14 and the second guide unit 15 that collect the sounds from the speaker 13 in a predetermined direction, it is possible to emit a narrowly directional sound. .. As a result, the wearable speaker system 1 can deliver the narrow directional sound to the user's ear, so that there is little risk of causing trouble to the user's surroundings. Further, since the wearable speaker system 1 does not directly block the user's ear, unlike the conventional headphones, it is possible to suppress giving the user a feeling of fatigue or the like as it is used.

The first guide portion 14 extends toward the center 161 of the opening 16 rather than outside the opening 16. Therefore, another member different from the first guide portion 14 can be arranged outside the opening 16. As a result, it is possible to realize the speaker unit 10R capable of emitting the aggregated sound while effectively utilizing the limited space in the speaker unit 10R.

Since the side surface of the first guide portion 14 facing the speaker 13 is curved so as to bulge toward the speaker 13, sound can be efficiently guided from the speaker 13 to the exit of the opening 16 along the first guide portion 14. Can be done.

Since the first guide portion 14 is arranged at a position far from the tip of the enclosure 2 and the second guide portion 15 is arranged at a position near the tip of the enclosure 2, the sound from the speaker 13 is transmitted from the rear to the front of the enclosure 2. It can be aggregated in the direction toward. As a result, even when the speaker 13 is arranged behind the user's ear, the sound from the speaker 13 can be aggregated in the direction of the user's ear.

Since the first guide portion 14 and the second guide portion 15 are covered by the speaker cover 4R, the first guide portion 14 and the second guide portion 15 can be protected by the speaker cover 4R.

(Modification example)
Like the second guide portion 15, the first guide portion 14 is not outside the opening 16 but is open as long as the conditions that the first guide portion 14 and the second guide portion 15 are asymmetric with respect to the surface 163 are satisfied. It may be configured to extend toward the center 161 of 16. Even in this case, the sound can be collected from the speaker 13 in a predetermined diagonal direction defined by each stretching direction of the first guide unit 14 and the second guide unit 15.

The side surface of the first guide portion 14 facing the speaker 13 does not necessarily have to be curved and may be flat.

The first guide portion 14 may be extended so as to cover not a part of the speaker 13 but the entire speaker 13. That is, the first guide portion 14 may extend from the first end portion 131 side to at least the second end portion 132 side. However, even in this case, it is necessary to secure the exit of the opening 16.

[Embodiment 2]
FIG. 8 is a top view showing the upper surface of the speaker unit 10R according to the second embodiment of the present invention. The components of the speaker unit 10R according to the present embodiment are the same as the components of the speaker unit 10R according to the first embodiment. However, in the present embodiment, the shapes of the first guide portion 14 and the second guide portion 15 are partially different from the shapes of the first guide portion 14 and the second guide portion 15 according to the first embodiment. Specifically, the tip 141 of the first guide portion 14 and the tip 151 of the second guide portion 15 are both curved. In detail, as shown in FIG. 8, all of them are curved so as to bulge toward the tip end side of the enclosure 2. Thereby, the outlet shape of the opening 16 defined by the shapes of the tip 141 and the tip 151 can be deformed according to the shape of the wearable speaker system 1 on which the speaker unit 10R is mounted.

FIG. 9 is a cross-sectional view showing a cross section of the speaker unit 10R according to the second embodiment of the present invention. FIG. 10 is a cross-sectional view showing a cross section of the speaker unit 10R according to the second embodiment of the present invention. FIG. 9 shows a cross section of the AA ′ portion in the speaker unit 10R shown in FIG. FIG. 10 shows a cross section of the BB' portion and a cross section of the CC' portion of the speaker unit 10R shown in FIG. As shown in FIG. 10, the cross section of the BB' portion and the cross section of the CC' portion of the speaker unit 10R are the same as each other. As shown in FIGS. 7 to 9, the tip 141 of the first guide portion 14 is a fourth from the third end portion 133 side that is orthogonal to the first end portion 131 and the second end portion 132 of the speaker 13 and faces each other. It is curved with a uniform curvature over the end 134 side. Further, the tip 151 of the second guide portion 15 is also curved with a uniform curvature from the third end portion 133 side to the fourth end portion 134 side. As a result, the matching of the sound waves at the outlet of the opening 16 can be ensured, so that the sound output from the speaker 13 can be delivered to the user's ear more efficiently.

[Embodiment 3]
FIG. 11 is a cross-sectional view showing a cross section of the speaker unit 10R according to the third embodiment of the present invention. FIG. 12 is a front view showing the entire wearable speaker system 1 in a state where the speaker unit 10R according to the third embodiment of the present invention is exposed.

The components of the speaker unit 10R according to the present embodiment are the same as the components of the speaker unit 10R according to the first embodiment. However, in the present embodiment, the positional relationship of each component is different. That is, in the speaker unit 10R according to the present embodiment, the speakers 13 are arranged vertically. Further, the first guide portion 14 is arranged on the lower side of the speaker unit 10R, and the second guide portion 15 is arranged on the upper side of the speaker 13.

As shown in FIG. 12, the first guide portion 14 is arranged at a position corresponding to the inner peripheral side of the enclosure 2, and the second guide portion 15 is arranged at a position corresponding to the outer peripheral side of the enclosure 2. There is. As described above, in the present embodiment, the first guide unit 14 and the second guide unit 15 are arranged in the vertical direction in the speaker unit 10R. In other words, the direction in which the first guide portion 14 and the second guide portion 15 are arranged is orthogonal to the direction in which the first guide portion 14 and the second guide portion 15 are arranged in the first or second embodiment.

Similar to the first and second embodiments, the wearable speaker system 1 according to the present embodiment also includes a first guide unit 14 and a second guide unit 15 that guide the sound from the speaker 13 toward the user's ear. Therefore, the sound from the speaker 13 can be aggregated in a predetermined direction according to each stretching direction of the first guide unit 14 and the second guide unit 15. As described above, also in this embodiment, it is possible to realize the wearable speaker system 1 that emits narrowly directional sounds that are concentrated in the direction of the user's ears.

(Embodiment 4)
FIG. 13 is a cross-sectional view showing a cross section of the speaker unit 10R according to the fourth embodiment of the present invention. As shown in this figure, the speaker unit 10R according to the present embodiment has a configuration in which the second guide portion 15 is removed from the speaker unit 10R according to the third embodiment. That is, the speaker unit 10R according to the present embodiment includes the speaker 13 and the first guide unit 14, but does not include the second guide unit 15. The wearable speaker system 1 according to the present embodiment includes the speaker unit 10R shown in FIG. Therefore, it can be said that the wearable speaker system 1 according to the present embodiment includes the speaker 13, and the first guide unit 14 includes only the first guide unit 14 of the second guide units 15.

Since the speaker unit 10R according to the present embodiment includes at least the first guide portion 14, the sound from the speaker 13 is transmitted from the speaker 13 along the first guide portion 14 covering the speaker 13 in the extending direction of the first guide portion 14. Can be guided in the diagonal direction specified by. As a result, the sound of the speaker 13 emitted from the outlet of the opening 16 can be aggregated in the direction of the user's ear. As described above, even the wearable speaker system 1 according to the present embodiment, which includes the speaker unit 10R and the first guide unit 14, but does not include the second guide unit 15, emits a narrow directional sound. You can still do it.

[Summary]
The wearable speaker system according to the first aspect of the present invention is a wearable speaker system having a U-shaped enclosure, in which a speaker having an opening formed in the front and a center of the opening from the first end side of the speaker. The first guide portion extending toward the side and away from the speaker, and the first end portion and the second end portion from the second end portion side of the speaker facing the first end portion. The configuration includes a first guide portion and a second guide portion that extends asymmetrically with respect to a surface orthogonal to the straight line to be connected and passing through the center of the opening.

The wearable speaker system according to the second aspect of the present invention may have a configuration in which the side surface of the first guide portion facing the speaker is curved so as to bulge toward the speaker in the first aspect. ..

The wearable speaker system according to the third aspect of the present invention may have a configuration in which the tip of the first guide portion and the tip of the second guide portion are curved in the first or second aspect.

In the wearable speaker system according to the fourth aspect of the present invention, in the third aspect, the tip of the first guide portion and the tip of the second guide portion are orthogonal to the first end portion and the second end portion of the speaker. Moreover, it may be configured to be curved with a uniform curvature from the third end side to the fourth end side facing each other.

In the wearable speaker system according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the first guide portion is arranged at a position farther from the tip of the enclosure than the second guide portion. The second guide portion may be arranged at a position closer to the tip of the enclosure than the first guide portion.

In the wearable speaker system according to the sixth aspect of the present invention, in any one of the first to fourth aspects, the first guide portion is arranged at a position corresponding to the outer peripheral side of the enclosure, and the second guide portion is arranged. May be configured to be arranged at a position corresponding to the inner peripheral side of the enclosure.

In any of the above aspects 1 to 6, the wearable speaker system according to the seventh aspect of the present invention may have a configuration in which the second guide portion extends toward the outside of the opening.

The wearable speaker system according to the eighth aspect of the present invention further includes a speaker cover that covers the speaker in any one of the first to seventh aspects, and the first guide portion and the second guide portion are the same as the speaker. It may be arranged between the speaker cover and the speaker cover.

The wearable speaker system according to the ninth aspect of the present invention is a wearable speaker system having a U-shaped enclosure, from a speaker having an opening formed in front and from the end side of the speaker to the center side of the opening. It is configured to include a guide portion extending toward the speaker so as to be separated from the speaker.

[Additional notes]
The present disclosure is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present disclosure. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1 Wearable speaker system 2,101 Enclosure 4L, 4R Speaker cover 10, 10L, 10R Speaker unit 11 Lower box 12 Upper box 13 Speaker 14 1st guide part 15 2nd guide part 16 Opening 21L Neck left side part 21R Neck right side part 22 Neck rear part 131 1st end 132 2nd end 133 3rd end 134 4th end 141, 151 Tip 161 Center 162 Straight line

Claims (9)

A wearable speaker system with a U-shaped enclosure.
A speaker with an opening in the front and
A first guide portion extending away from the speaker from the first end side of the speaker toward the center side of the opening.
From the side of the second end of the speaker facing the first end, the surface orthogonal to the straight line connecting the first end and the second end and passing through the center of the opening is used as a reference. A wearable speaker system including one guide portion and a second guide portion that extends asymmetrically. The wearable speaker system according to claim 1, wherein the side surface of the first guide portion facing the speaker is curved so as to bulge toward the speaker. The wearable speaker system according to claim 1 or 2, wherein the tip of the first guide portion and the tip of the second guide portion are curved. The tip of the first guide portion and the tip of the second guide portion extend from the third end side to the fourth end side orthogonal to and facing each other at the first end and the second end of the speaker. The wearable speaker system according to claim 3, wherein the wearable speaker system is curved with a uniform curvature. The first guide portion is arranged at a position farther from the tip of the enclosure than the second guide portion.
The wearable speaker system according to any one of claims 1 to 4, wherein the second guide portion is arranged at a position closer to the tip of the enclosure than the first guide portion. The first guide portion is arranged at a position corresponding to the outer peripheral side of the enclosure.
The wearable speaker system according to any one of claims 1 to 4, wherein the second guide portion is arranged at a position corresponding to the inner peripheral side of the enclosure. The wearable speaker system according to any one of claims 1 to 6, wherein the second guide portion extends toward the outside of the opening. A speaker cover that covers the speaker is further provided.
The wearable speaker system according to any one of claims 1 to 7, wherein the first guide portion and the second guide portion are arranged between the speaker and the speaker cover. A wearable speaker system with a U-shaped enclosure.
A speaker with an opening in the front and
A wearable speaker system comprising a guide portion extending away from the speaker from the end side of the speaker toward the center side of the opening.

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