WO2017073217A1

WO2017073217A1 - Portable device output sound amplifier

Info

Publication number: WO2017073217A1
Application number: PCT/JP2016/078341
Authority: WO
Inventors: 善久内田
Original assignee: 株式会社国際気象コンサルタント
Priority date: 2015-10-30
Filing date: 2016-09-27
Publication date: 2017-05-04
Also published as: JP5901041B1; JP2017085468A

Abstract

The purpose of the present invention is to provide an instrument for amplifying the volume of sound outputted from a portable device, and further improving sound quality. The portable device output sound amplifier disclosed in the present application amplifies sound outputted from a portable device. The portable device output sound amplifier is provided with a housing main body part for housing the portable device. The housing main body part is provided with a housing space into which the portable device is inserted and housed, a wall part having an inner wall surface that defines the housing space, and an insertion opening formed in one end side of the wall part with respect to an insertion direction in which the portable device is inserted into the housing space, the portable device being inserted through the insertion opening. The housing space is formed to extend in the insertion direction, the inner wall surface has a plurality of sound-reflecting surfaces in which the vertices of polygons are joined, and the plurality of sound-reflecting surfaces are disposed to be nonparallel so that the edges of the polygons are nonparallel with each other.

Description

Portable device output sound amplifier

The present invention relates to a portable device output sound amplifier that amplifies sound output from a portable device.

2. Description of the Related Art Conventionally, there has been known a device that increases the quality and volume of sound output from a portable device (for example, Patent Document 1). Some of these instruments do not have an electrical processing unit for increasing sound quality and volume, and do not require power. According to such an instrument, by not using electric power, a power source becomes unnecessary, and the portability of the instrument can be improved.

JP 2005-184050 A

However, there is a need for a device that improves the sound quality of the output sound of mobile devices. Accordingly, an object of the present invention is to provide an instrument that amplifies the volume of sound output from a portable device and further improves sound quality.

The portable device output sound amplifier disclosed in the present application is a portable device output sound amplifier that amplifies sound output from the portable device. The portable device output sound amplifier includes a housing main body that houses the portable device. The housing main body includes a housing space in which the mobile device is inserted to store the mobile device, a wall portion having an inner wall surface that defines the housing space, and one end side of the wall portion in the insertion direction in which the mobile device is inserted into the housing space. And an opening for insertion into which the portable device is inserted. The housing space is formed to extend in the insertion direction, and the inner wall surface includes a plurality of sound reflecting surfaces that connect the vertices of the polygon, and the plurality of sounds are arranged so that the sides of the polygon are not parallel to each other. The reflecting surfaces are arranged non-parallel.

In the portable device output sound amplifier disclosed in the present application, the inner wall surface includes a plurality of sound reflection surfaces that connect the vertices of the polygon, and the plurality of sound reflection surfaces are non-parallel so that the sides of the polygon are not parallel to each other. They are arranged in parallel. Therefore, the number of times of sound reflection with respect to the sound reflection surface is smaller than when the sound reflection surfaces are arranged in parallel with each other. Further, the non-parallel arrangement of the sound reflecting surfaces reduces interference between sound waves and standing waves. Therefore, according to the portable device output sound amplifier disclosed in the present application, the sound volume output from the portable device can be amplified and the sound quality can be further improved.

It is a top view which shows the state which accommodated the portable apparatus in the portable apparatus output sound amplifier which concerns on 1st Embodiment. It is the side view seen from the position P of FIG. FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG. 1 in a state where a portable device is not accommodated. It is a bottom part side part expansion perspective view of the portable equipment output sound amplifier concerning a 1st embodiment. It is a top view which shows the state which accommodated the portable apparatus in the portable apparatus output sound amplifier which concerns on 2nd Embodiment. (A) It is a top view of the portable apparatus output sound amplifier which concerns on 3rd Embodiment. FIG. 4B is a sectional view taken along line BB ′ in FIG. (A) It is a top view of the portable apparatus output sound amplifier which concerns on 4th Embodiment. (B) It is a front view of the portable apparatus output sound amplifier which concerns on 4th Embodiment. (A) It is a side view by the side of the opening for insertion which shows the state which accommodated the portable apparatus in the portable apparatus output sound amplifier which concerns on 5th Embodiment. (B) It is a front view of the portable apparatus output sound amplifier which concerns on 5th Embodiment. It is a front side perspective view of the portable apparatus output sound amplifier which concerns on 6th Embodiment. (A) It is a top view of the portable apparatus output sound amplifier which concerns on 6th Embodiment. (B) It is a back side perspective view of the portable-device output sound amplifier which concerns on 6th Embodiment. (A) It is a top view of the portable apparatus output sound amplifier which concerns on 7th Embodiment. (B) It is a front side perspective view of the portable apparatus output sound amplifier which concerns on 7th Embodiment. (A) It is a front view of the portable apparatus output sound amplifier which concerns on 8th Embodiment. (B) It is a top part partial side view of the portable-device output sound amplifier which concerns on 8th Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. “Top”, “Bottom”, “Outside”, “Inside”, “Horizontal”, “Vertical”, “Left”, “Right”, “Front”, “Back”, “Top”, “Bottom”, etc. The term indicating the direction is for convenience based on the state of the drawing, and the actual direction is not limited to this.

[First Embodiment]
FIG. 1 shows a plan view of a portable device output sound amplifier (hereinafter referred to as “amplifier”) 1 according to the first embodiment, and FIG. 2 shows a side view of the amplifier 1. The amplifier 1 amplifies sound output from the mobile device 2 such as a smartphone.
The amplifier 1 includes a housing main body 3 that houses the portable device 2. A sound output unit 4 for outputting sound is provided at the lower end of the portable device 2. A mobile device display unit 2 e is provided on the main surface of the mobile device 2. The portable device display unit 2e is a display screen of a smartphone or the like, for example.
In FIG. 1 and FIG. 2, the portable device 2 accommodated in the accommodation main body 3 is illustrated by a two-dot chain phantom line for explanation. Moreover, in FIG. 2, the component inside the accommodating main-body part 3 is shown with the dotted line.

The housing main body 3 includes a housing space 5, a wall 6, and an insertion opening 7. The accommodation space 5 is a space for accommodating the inserted mobile device 2. The wall portion 6 has an inner wall surface 9 that defines the accommodation space 5. The insertion opening 7 is an opening into which the mobile device 2 is inserted. As shown in FIGS. 2 and 3, the insertion opening 7 is formed on one end side 6 a of the wall 6 in the insertion direction Y in which the portable device 2 is inserted into the accommodation space 5. The “insertion direction” refers to a direction in which the portable device 2 approaches or separates from the amplifier 1 when the portable device 2 is viewed from the front. Moreover, in each figure, the width direction of the accommodating main body 3 is illustrated as the width direction X.

As shown in FIG. 3, the insertion opening 7 is formed on the upper surface 10 of the housing main body 3 and communicates with the housing space 5. Thus, when the amplifier 1 is placed vertically so that the insertion opening 7 is positioned on the upper surface 10 side of the housing main body 3, the insertion direction Y is the height direction of the housing main body 3.
As shown in FIG. 1, the wall portion 6 includes a plurality of side wall portions 8a to 8e that connect polygonal vertices 12a to 12e in a cross section. As shown in FIG. 2, the length of the wall 6 is a dimension that covers the entire mobile device 2 in a state where the mobile device 2 is accommodated. Therefore, in the state where the portable device 2 is accommodated, the height position of the upper end 2 b of the portable device 2 is lower than the height position of the upper surface 10 of the accommodation main body 3.

Further, the inner wall surface 9 includes a plurality of sound reflecting surfaces 14a to 14e that connect the polygonal vertices 12a to 12e. The inner wall surfaces 9 of the side wall portions 8a to 8e constitute the sound reflecting surfaces 14a to 14e. In the present embodiment, the polygon has 5 corners. A first sound reflecting surface 14a is provided between the first vertex 12a and the second vertex 12b, and a second sound reflecting surface 14b is provided between the second vertex 12b and the third vertex 12c. Is provided. Further, a third sound reflection surface 14c is provided between the third vertex 12c and the fourth vertex 12d, and a fourth sound reflection is provided between the fourth vertex 12d and the fifth vertex 12e. A surface 14d is provided, and a fifth sound reflecting surface 14e is provided between the fifth vertex 12e and the first vertex 12a. In the present embodiment, as shown in FIG. 1, the width dimensions W1 of the sound reflecting surfaces 14a to 14e are the same, and the shape connecting the vertices 12a to 12e is a regular pentagon.

The sound reflecting surfaces 14a to 14e are arranged non-parallel so that the polygonal sides 13a to 13e defined by the vertices 12a to 12e are non-parallel to each other. For example, as shown in FIG. 1, the third sound reflecting surface 14c and the fourth sound reflecting surface 14d facing the first sound reflecting surface 14a are not parallel to the first sound reflecting surface 14a. Is arranged. That is, on the same plane that traverses the containing space 5 in the width direction X, the apex 12c and the apex on the third sound reflecting surface 14c with respect to the side 13a connecting the apex 12a and the apex 12b on the first sound reflecting surface 14a. The side 13c connecting 12d and the side 13d connecting the apex 12d and the apex 12e on the fourth sound reflecting surface 14d are located non-parallel. In the example of FIG. 1, the third sound is reflected from the first sound reflecting surface 14 a at a distance from the first sound reflecting surface 14 a to the third sound reflecting surface 14 c and the fourth sound reflecting surface 14 d. The third sound reflecting surface 14c and the fourth sound reflecting surface 14d are the first sound reflecting surface 14a so that the distance to the joint 36 between the reflecting surface 14c and the fourth sound reflecting surface 14d is the longest. It extends with an inclination.

As shown in FIGS. 1 and 3, each of the sound reflecting surfaces 14a to 14e is a flat surface. Further, as shown in FIG. 1, in the wall portion 6, the thickness dimension T1 at the center position 15 between the adjacent vertices 12a to 12e is thicker than the thickness dimension T2 at the position 16 closer to the vertices 12a to 12e. In the example shown in FIG. 1, the outer edge shape in the cross section of the wall portion 6 is a circular shape passing through the vertices 12a to 12e.

Further, the wall portion 6 is provided with a corner reinforcing portion 19 that extends along the outer wall surface 18 of the wall portion 6 at the apexes 12a to 12e and protrudes outward of the housing main body portion 3. In the example of FIG. 2, the corner reinforcing portion 19 extends along the insertion direction Y on the outer wall surface 18. The cross-sectional shape of the corner reinforcing portion 19 is a substantially isosceles triangle. That is, as shown in FIG. 1, the bottom surface of the isosceles triangle is the outer wall surface 18 of the wall portion 6, and the vertex of the isosceles triangle faces the radially outward direction of the housing main body portion 3.

As shown in FIG. 3, the accommodation space 5 defined by the inner wall surface 9 is formed to extend in the insertion direction Y. As described above, since the shape connecting the vertices 12a to 12e is a regular pentagon, the cross-sectional shape of the accommodation space 5 is a regular pentagon. In the present embodiment, the virtual central axis C (see FIG. 5) of the housing body 3 is increased so that the cross-sectional area of the housing space 5 of the housing body 3 increases from the other end 6b of the wall 6 toward the one end 6a. The inner wall surface 9 is inclined with respect to 3). The virtual central axis C is a virtual line extending to the center of a regular pentagon formed by the vertices 12a to 12e.
In the first embodiment, since the upper end of the accommodation space 5 defined by the sound reflecting surfaces 14a to 14e is opened, the opening shape in the insertion opening 7 is a regular pentagon as shown in FIG. .

The housing main body 3 includes a housing main body bottom 21 on the other end side 6 b in the insertion direction Y of the wall 6. An inner bottom surface 22 that defines the accommodation space 5 is formed in the accommodation main body bottom portion 21. The inner bottom surface 22 is formed at a position closer to the one end side 6 a than the tip end 6 c of the other end side 6 b in the wall portion 6. The housing main body bottom 21 includes a stepped portion 23. The step portion 23 is formed so as to protrude from the inner wall surface 9 to the accommodation space 5 along the inner wall surface 9. The step portion 23 is a stepped step formed along the inner wall surface 9, and a step portion end surface 23 a is formed on the upper surface thereof. As shown in FIG. 1, when the plane side of the housing body 3 is viewed, the stepped portion end surface 23a is formed with the same width along the entire circumference of the inner wall surface 9, and the inner edge 23b of the stepped portion end surface 23a is a regular pentagon. Is configured. The width dimension of the step part end surface 23a is 5 mm as an example.

When the portable device 2 is inserted into the housing main body 3, both

end portions

2 g and 2 h in the width direction at the lower end 2 a of the portable device 2 are placed on the step portion end surface 23 a of the step portion 23. In other words, in the present embodiment, the stepped portion end surface 23 a is a portable device holding portion that contacts the portable device 2. The step portion end surface 23 a is formed at a position closer to the one end side 6 a of the wall portion 6 than the inner bottom surface 22. Therefore, the height position of the stepped portion end surface 23 a is higher than the height position of the inner bottom surface 22. Therefore, when the portable device 2 is accommodated in the accommodating main body 3, a predetermined space 24 is formed between the portable device 2 and the inner bottom surface 22. The height dimension of the predetermined space 24 is, for example, 2.5 mm to 3 cm.

In the present embodiment, as shown in FIG. 1, in the side 27 where the stepped end surface 23a is in contact with the inner wall surface 9, the midpoint of the side 27 connecting the vertices 12a to 12e adjacent in the circumferential direction is the midpoint 28 between vertices. The distance connecting the midpoints 28 between the vertexes of the sound reflecting surfaces 14a to 14e facing each other is equal to the width dimension W2 of the portable device 2. Note that the side 27 where the stepped portion end surface 23a contacts the inner wall surface 9 corresponds to the width of the sound reflecting surfaces 14a to 14e at the height position of the stepped portion end surface 23a.

As shown in FIG. 3, a recess 31 is formed from the tip 6 c of the other end 6 b of the wall 6 toward the inner bottom surface 22 in the housing main body bottom 21. The thickness of the center part of the baseplate part 26 which demarcates the inner bottom face 22 and the recessed part 31 is 5 mm as an example.
The longitudinal cross-sectional shape of the tip 6c of the wall 6 is formed in an arc shape. The distal end surface 32 is a curved surface that protrudes outward from the housing body 3. In the thickness direction D of the wall portion 6, the central portion of the tip surface 32 protrudes most. Further, as shown in FIG. 4, the center portion of the front end surface 32 protrudes most in the width direction of the side wall portions 8a to 8e. As described above, the most projecting portion 34 is formed at the center of the distal end surface 32.
The most projecting portion 34 comes into contact with the placement surface 35 when the amplifier 1 is placed such that the housing main body bottom portion 21 is positioned below the housing body 3, that is, when the amplifier 1 is placed vertically. Part.

In this embodiment, each component constituting the amplifier 1 is formed of a transparent member. In this embodiment, glass is adopted as the transparent member. Since glass has a high density, it has a uniform reflectance from low to high frequencies. Therefore, it is difficult for the reflected sound to have a specific effect.

Next, the operation of the amplifier 1 will be described.
As shown in FIGS. 2 and 3, when the amplifier 1 is placed vertically on the mounting surface 35 and the portable device 2 outputting sound is inserted into the accommodation space 5 from the insertion opening 7 of the amplifier 1, Both ends 2g and 2h in the width direction of the lower end 2a of the device 2 are in contact with the stepped portion end surface 23a. Thereby, the both ends 2g and 2h of the portable apparatus 2 are supported by the step part end surface 23a. Therefore, the portable device 2 is held in the accommodation space 5 with a space 24 without contacting the inner bottom surface 22. As shown in FIG. 2, the accommodated mobile device 2 is tilted by its own weight, and the upper end 2 b of the mobile device 2 comes into contact with the inner wall surface 9 and is supported by the wall portion 6.

The sound output from the portable device 2 is reflected and amplified by the plurality of sound reflecting surfaces 14a to 14e, and is output from the insertion opening 7 to the outside of the amplifier 1. As described above, in the first embodiment, the insertion opening 7 has a function as an output port for outputting the amplified sound to the outside of the amplifier 1.

As described above, the amplifier 1 according to the first embodiment includes a plurality of sound reflecting surfaces 14a to 14e. Therefore, when the sound output from the portable device 2 diverges in a plurality of directions, the plurality of sound reflecting surfaces 14a to 14e reflect these sounds and guide them to the insertion opening 7. Thereby, the sound output from the portable device 2 can be amplified and output to the outside of the amplifier 1.

Further, in the amplifier 1, the inner wall surface 9 includes a plurality of sound reflecting surfaces 14a to 14e connecting the polygonal vertices 12a to 12e, and the plurality of sound sides are formed so that the sides 13a to 13e of the polygon are not parallel to each other. The reflecting surfaces 14a to 14e are arranged non-parallel. Therefore, the number of times of sound reflection with respect to the sound reflecting surfaces 14a to 14e is smaller than when the sound reflecting surfaces 14a to 14e are arranged in parallel with each other. Further, the non-parallel arrangement of the sound reflecting surfaces 14a to 14e reduces interference between sound waves and standing waves. Therefore, according to the amplifier 1, the sound quality output from the portable device 2 can be further improved.

Furthermore, like the amplifier 1, by making the number of the polygonal vertices 12a to 12e an odd number, the sound reflecting surfaces 14a to 14e having the same width dimension W1 can be arranged non-parallel to each other. Moreover, the cross-sectional shape of the accommodation space 5 defined by the first sound reflection surface 14a to the fifth sound reflection surface 14e is a pentagon. Here, the amplifier 1 is compared with the case where the cross-sectional shape of the accommodation space 5 is a triangle. When the cross-sectional shape is a triangle, the space in front of each sound reflecting surface is narrowed toward the opposite vertex. On the other hand, in the amplifier 1 according to the present embodiment, since the cross-sectional shape is a pentagon, the space in front of each of the sound reflecting surfaces 14a to 14e expands toward the virtual central axis C. Therefore, according to the amplifier 1, a sufficient space for sound expansion is ensured, and the sound quality improvement effect can be further enhanced.

In addition, when unevenness is formed on the sound reflection surface, there is a problem that the sound focus is generated at a specific portion, and the sound pressure is increased or decreased according to the reflection position on the reflection surface. On the other hand, in the amplifier 1, the sound reflecting surfaces 14a to 14e are flat. Therefore, the sound pressure of the sound reflected on the sound reflecting surfaces 14a to 14e can be made constant.

In the amplifier 1, the wall portion 6 has a thickness dimension T1 at the center position 15 between the adjacent apexes 12a to 12e larger than a thickness dimension T2 at the position 16 closer to the apexes 12a to 12e. If the sound reflecting surfaces 14a to 14e themselves vibrate due to sound, there is a possibility that the sound volume and sound quality may be adversely affected. The central part of each sound reflecting surface 14a-14e is more likely to vibrate than the edge. In the amplifier 1, as described above, the thickness T1 of the wall 6 at the central portion of each sound reflecting surface 14a to 14e is made larger than the thickness T2 of the edge, so that each sound reflecting surface 14a to 14a. The vibration of 14e can be reduced efficiently.

Furthermore, in the example shown in FIG. 1, the outer wall surface 18 is convex because the outer edge shape in the cross section of the wall 6 is circular. Moreover, the wall part 6 is formed of the transparent member. Therefore, when the mobile device display unit 2e is viewed from the outside of the housing main body 3 through the wall 6, the video image displayed on the mobile device display unit 2e appears to be enlarged. In addition, since the cross-sectional shape of the corner reinforcing portion 19 is a substantially isosceles triangle, the images seen from the outer wall surface 18 of each of the side wall portions 8a to 8e appear to be partitioned by the corner reinforcing portion 19 as a frame. Therefore, it is possible to enjoy the visual effect of the image that appears to change variously depending on from which direction the accommodation main body 3 is viewed.

Further, the wall portion 6 includes a corner reinforcing portion 19 that extends along the outer wall surface 18 of the wall portion 6 and protrudes outward from the housing main body portion 3 at the vertices 12a to 12e. As described above, at the vertices 12a to 12e, the sound reflection surfaces 14a to 14e adjacent in the circumferential direction are joined, so that they are less likely to vibrate than the central portions of the sound reflection surfaces 14a to 14e. However, there is a possibility that the wall 6 may vibrate even at the apexes 12a to 12e with respect to the vibration of the sound that is perpendicularly incident on the joint portion 36 of the adjacent sound reflecting surfaces 14a to 14e. In the amplifier 1, since the joint portion 36 of the sound reflecting surfaces 14 a to 14 e is reinforced by the corner reinforcing portion 19, vibration at the joint portion 36 is reduced. Therefore, the bad influence which the vibration of the wall part 6 has on the volume increase and the sound quality improvement effect can be further suppressed.

In the amplifier 1, the inner bottom surface 22 is formed at a position closer to the one end side 6 a than the tip end 6 c on the other end side 6 b in the wall portion 6, and the concave portion 31 extends from the tip end 6 c on the other end side 6 b toward the inner bottom surface 22. Is formed. Therefore, vibration transmitted from the mounting surface 35 of the amplifier 1 to the housing main body bottom 21 is reduced. Thereby, the bad influence on the volume and sound quality by the vibration of the mounting surface 35 can be suppressed.

Moreover, the front end surface 32 on the other end side 6b of the wall portion 6 is a curved surface protruding outward from the housing main body portion. Therefore, in the amplifier 1, the apex (most protruding portion) 34 of the curved surface makes point contact with the mounting surface 35. Thereby, it is possible to suppress the vibration of the entire amplifier 1 from being directly transmitted to the placement surface 35, and to prevent the sound from blurring.

In the amplifier 1, the housing main body 3 has a stepped portion end surface 23 a (portable device holding portion) in contact with the portable device 2, and the stepped portion end surface 23 a is a predetermined space 24 between the portable device 2 and the inner bottom surface 22. Is formed at a position closer to one end side 6a of the wall 6 than the inner bottom surface 22. When the sound output unit 4 of the portable device 2 is provided at the lower end 2a of the portable device 2, when the lower end 2a of the portable device 2 contacts the inner bottom surface 22, the bass is strongly reflected on the inner bottom surface 22 and the sound is excessively low. There is a possibility of becoming obsessed. In the amplifier 1, the predetermined space 24 is held between the portable device 2 and the inner bottom surface 22 by the stepped portion end surface 23 a (mobile device holding portion), so that the phenomenon that the sound is trapped as described above is suppressed. Can do.

Even when the charging cable connection port of the portable device 2 is provided at the lower end 2a of the portable device 2, the charging cable can be accommodated in the space 24, so that the portable device 2 is charged. However, the amplifier 1 can be used.

[Second Embodiment]
FIG. 5 shows a plan view of an amplifier 50 according to the second embodiment. The basic configuration of the amplifier 1 according to the first embodiment and the amplifier 50 according to the second embodiment described above is the same, and different points will be mainly described here.
The housing main body 53 includes a housing space 55 for housing the mobile device 2, a wall 56, and an insertion opening 57.

The inner wall surface 59 of the wall portion 56 includes a plurality of sound reflecting surfaces 54a to 54g that connect the polygonal vertices 52a to 52g. In the present embodiment, the number of corners of the polygon is seven. A first sound reflection surface 54a is provided between the first vertex 52a and the second vertex 52b, and a second sound reflection surface 54b is provided between the second vertex 52b and the third vertex 52c. Is provided. A third sound reflecting surface 54c is provided between the third vertex 52c and the fourth vertex 52d, and a fourth sound reflecting surface 54d is provided between the fourth vertex 52d and the fifth vertex 52e. Is provided. A fifth sound reflecting surface 54e is provided between the fifth vertex 52e and the sixth vertex 52f, and a sixth sound reflecting surface 54f is provided between the sixth vertex 52f and the seventh vertex 52g. And a seventh sound reflecting surface 54g is provided between the seventh vertex 52g and the first vertex 52a. In the second embodiment, the shape connecting the vertices 52a to 52g is a regular heptagon.

The sound reflecting surfaces 54a to 54g are arranged non-parallel so that the polygonal sides 51a to 51g defined by the vertices 52a to 52g are non-parallel to each other. For example, as shown in FIG. 5, the fourth sound reflecting surface 54d and the fifth sound reflecting surface 54e facing the first sound reflecting surface 54a are not parallel to the first sound reflecting surface 54a. Is arranged. That is, on the same plane that traverses the containing space 55 in the width direction X, the vertex 52d and the apex of the fourth sound reflecting surface 54d with respect to the side 51a that connects the apex 52a and the apex 52b of the first sound reflecting surface 54a. The side 51d that connects 52e and the side 51e that connects the vertex 52e and the vertex 52f in the fifth sound reflecting surface 54e are located non-parallel.
Similar to the first embodiment, since the upper end of the accommodation space 55 defined by the sound reflecting surfaces 54a to 54g is open, the opening shape of the insertion opening 57 is a regular heptagon.

Similarly to the amplifier 1, a step portion 63 and a step portion end surface 63 a are provided along the inner wall surface 59 and projecting from the inner wall surface 59 into the accommodation space 55. In the present embodiment, as shown in FIG. 5, when the plane side of the housing main body 53 is viewed, the stepped portion end surface 63 a is formed with the same width along the entire circumference of the inner wall surface 59, and the stepped portion end surface 63 a The inner edge 63b forms a regular heptagon. Each component constituting the amplifier 50 is formed of a transparent member such as glass.
Also in the amplifier 50, the plurality of sound reflecting surfaces 54a to 54g are arranged non-parallel so that the polygonal sides 51a to 51g are non-parallel to each other. Therefore, according to the amplifier 50, the volume of the sound output from the portable device 2 can be amplified and the sound quality can be further improved as in the above-described amplifier 1. The amplifier 50 has the same advantages as the advantages of the amplifier 1 described above.

In addition, the cross section of the accommodation space 55 approaches a circle or an ellipse as the number of polygons increases. When the transverse cross section of the accommodation space 55 is a circle or an ellipse, there is a problem that many sounds cancel each other when the sound is reflected by the sound reflecting surfaces 54a to 54g. As in the case of the amplifier 1 or the amplifier 50, by setting the number of polygonal angles to 7 or less, the generation of the canceling sounds can be reduced.

[Third Embodiment]
FIG. 6 shows an amplifier 70 according to the third embodiment. The amplifier 70 is configured by combining the amplifier 1 according to the first embodiment and the amplifier 50 according to the second embodiment.
As shown in FIG. 6, the housing main body 3 of the amplifier 1 is housed in the housing space 55 of the amplifier 50. Here, the amplifier 50 is an outer container portion that houses the housing body 3. As shown in FIG. 6A, the amplifier 1 is accommodated in the amplifier 50 so that the vertices 12a to 12e of the amplifier 1 are located between the vertices 52a to 52g adjacent in the circumferential direction of the amplifier 50. Since the housing body 3 is rotatable in the circumferential direction in the housing space 55, the positional relationship of the amplifier 1 with respect to the amplifier 50 can be changed as appropriate.

As shown in FIG. 6B, a sound quality adjustment space 73 is held between the inner wall surface 59 of the amplifier 50 and the outer wall surface 18 of the housing main body 3. A sound quality adjustment gauge 72 is provided on the outer wall surface 58 of the amplifier 50. The sound quality adjustment gauge 72 is a scale indicating the height position in the sound quality adjustment space 73, and is constituted by concave portions that are cut at equal intervals in the height direction in the corner reinforcement portion 69. In the present embodiment, the wall portion 56 of the amplifier 50 constitutes a sound quality adjusting outer wall portion.
Further, the height position of the upper end side tip surface 6 d of the wall 6 in the amplifier 1 is higher than the height position of the upper end side tip surface 56 a in the amplifier 50.

The outer container part (here, the amplifier 50) includes a fitting space 65 into which the other end side 6b of the wall part 6 is fitted. The fitting space 65 is defined by the inner wall surface 63 c of the stepped portion 63 and the inner bottom surface 62 of the amplifier 50. The other end side 6 b of the wall portion 6 in the amplifier 1 is fitted in the fitting space 65, and the inner edge 63 b of the stepped portion end surface 63 a is partially in contact with the outer wall surface 18 of the housing main body 3.
The front end surface 32 of the amplifier 1 is in contact with the inner bottom surface 62 of the amplifier 50 at the most protruding portion 34. Therefore, when the other end side 6 b of the wall 6 is fitted into the fitting space 65, a space defined by the recess 31 is formed between the inner bottom surface 22 of the amplifier 1 and the inner bottom surface 62 of the amplifier 50. Will be.
Similarly to the first embodiment, the amplifier 50 has a recess 61 formed between the inner bottom surface 62 and the most projecting portion 64, and the most projecting portion 64 is in contact with the placement surface 35.

The amplifier 70 according to this embodiment includes a sound quality adjustment space 73. The sound quality is changed by putting water or glass beads in the sound quality adjusting space 73. Therefore, in addition to the advantages described above with respect to the amplifier 1, the sound quality can be adjusted by adjusting the amount of water or glass beads placed in the sound quality adjusting space 73. In addition, since the sound quality adjustment gauge 72 is provided, the amount of water or glass beads put into the sound quality adjustment space 73 can be easily grasped.
In addition, by placing water or glass beads in the sound quality adjusting space 73, more vibration of the amplifier 70 can be absorbed.

Further, in the amplifier 70, as described above, the other end 6b of the wall portion 6 is fitted in the fitting space 65, and the recess 31 is provided between the inner bottom surface 22 of the amplifier 1 and the inner bottom surface 62 of the amplifier 50. A defined space is formed. Therefore, when water or glass beads are put into the sound quality adjusting space 73, the air stays in the recess 31. As a result, the effect of blocking the vibration transmitted by the mounting surface 35 can be further increased, and the adverse effect of the vibration on the increase in volume and the improvement in sound quality can be suppressed.

When water or glass beads are placed in the sound quality adjusting space 73, water or glass beads flow into the gap 75 formed between the inner wall surface 63c and the outer wall surface 18. However, since the amount of water or glass beads flowing into the recess 31 from the gap 75 is very small, air is held in the recess 31.
Further, since the height position of the upper end side end face 6d of the wall portion 6 is higher than the height position of the upper end side end face 56a of the wall portion 56, water or glass beads placed in the sound quality adjustment space 73 are adjusted in sound quality. It is possible to prevent a situation from overflowing from the use space 73 and flowing into the accommodation space 5.

[Fourth Embodiment]
FIG. 7 shows an amplifier 80 according to the fourth embodiment. The amplifier 80 is obtained by attaching a reflector 81 to the amplifier 1 according to the first embodiment. The reflection plate 81 is installed at the upper end 41 of the housing body 3. The reflection plate 81 includes a substrate portion 82 extending in the width direction X of the housing main body portion 3 and a plate-like reflection portion 84 that rises upward from the substrate portion 82. A stopper portion 85 protruding downward is formed at the end portion 82 a of the substrate portion 82. The reflection portion 84 includes a reflection surface 84 a on the side facing the upper end 41. A stopper portion 86 extending downward is formed on the short side edge portion 84 b of the reflection portion 84. The stopper portion 85 and the stopper portion 86 are for locking the reflecting plate 81 to the upper end 41.
The reflecting plate 81 is formed of plastic such as polycarbonate or acrylic.

When the reflecting plate 81 is placed on the upper end 41 of the housing main body 3 after the mobile device 2 is housed in the housing main body 3, the sound output from the mobile device 2 and amplified by reflection on the sound reflecting surfaces 14a to 14e is generated. Further, the light is further reflected by the reflection surface 84a of the reflection plate 81, and is transmitted in a predetermined direction according to the angle θ of the reflection surface 84a with respect to the upper end 41.
Therefore, according to the amplifier 80, in addition to the advantages described above for the amplifier 1, the sound of the portable device 2 can be transmitted in a certain direction and further away.
In order to transmit the sound farther, it is desirable to set the angle θ of the reflecting surface 84a to 45 degrees, and to diffuse the sound more widely, the angle θ of the reflecting surface 84a is set to 60 degrees. Is desirable.

[Fifth Embodiment]
FIG. 8 shows an amplifier 90 according to the fifth embodiment. The basic configuration of the amplifier 1 according to the first embodiment and the amplifier 90 according to the fifth embodiment described above is the same, and different points will be mainly described here. Moreover, the same code | symbol is attached | subjected to the component similar to 1st Embodiment.

The housing main body 93 includes a housing space 5 for housing the mobile device 2, a wall 96, and an insertion opening 7. The wall portion 96 is formed of a transparent member such as glass. In the present embodiment, the wall portion 96 is constituted by a plurality of plano-convex lenses 98. For example, the plano-convex lens 98 is a plano-convex cylindrical lens. In the wall portion 96, the plane of the plano-convex lens 98 constitutes the outer wall surface 98a, and the convex surface of the plano-convex lens 98 constitutes the inner wall surface 98b. That is, the outer wall surface 98a of the wall portion 96 has a flat shape, and the plurality of sound reflecting surfaces 94a to 94e that connect the polygonal vertices 12a to 12c have a convex shape that protrudes inward of the accommodation space 5.

Also in the amplifier 90, the plurality of sound reflecting surfaces 94a to 94e are arranged non-parallel to each other so that the polygonal sides 91a to 91e are non-parallel to each other. For example, as shown in FIG. 8, the third sound reflecting surface 94c and the fourth sound reflecting surface 94d facing the first sound reflecting surface 94a are not parallel to the first sound reflecting surface 94a. Is arranged. That is, on the same plane that traverses the accommodating space 5 in the width direction X, the apex 12c and the apex of the third sound reflecting surface 94c with respect to the side 91a that connects the apex 12a and the apex 12b of the first sound reflecting surface 94a The side 91c connecting 12d and the side 91d connecting the apex 12d and the apex 12e in the fourth sound reflecting surface 94d are located non-parallel.

In the present embodiment, at the corner portion 97 where the adjacent plano-convex lens 98 is joined, a part of the corner reinforcing portion 19 protrudes inward of the housing body 3 and is integrated with a portion of the inner wall surface 98b. However, the technical idea that the plurality of sound reflecting surfaces 94a to 94e connect the polygonal vertices 12a to 12c is the same as that of the amplifier 1 according to the first embodiment. In the example shown in FIG. 8A, each of the vertices 12a to 12c coincides with a joint point between the outer wall surfaces 98a adjacent in the circumferential direction, but each vertex 12a is interposed between the outer wall surface 98a and the accommodating space 5. ~ 12c may be set closer to the inner diameter side.

The amplifier 90 includes a position adjustment ball 99 for adjusting the position of the mobile device 2. The position adjusting ball 99 is a sphere formed separately from the housing main body 93.
In the example of FIG. 8, the amplifier 90 is placed horizontally on the placement surface 35, and the corner reinforcing portion 19 formed on the wall portion 96 is in contact with the placement surface 35. In this way, when the amplifier 1 is placed horizontally so that the insertion opening 7 is positioned on the side surface side of the housing body 3, the insertion direction Y is parallel or substantially parallel to the placement surface 35. Become.
In the present embodiment, the cross-sectional shape of the corner reinforcing portion 19 is formed in a circular shape.

The portable device 2 is inserted into the accommodation space 5 from the insertion opening 7 and is pushed in until the portable device 2 comes into contact with the stepped portion end surface 23a of the stepped portion 23. The position adjustment balls 99 are installed at the corner 97 at two locations near the insertion opening 7 and near the step portion end surface 23a to support the portable device 2. Thereby, the position of the portable device 2 is adjusted so that the portable device display unit 2e faces the plano-convex lens 98 having the sound reflecting surface 94e in parallel. The width dimension of the plano-convex lens 98 is preferably equal to or larger than the width dimension of the portable device display unit 2e.

In the amplifier 90, since the wall portion 96 is constituted by the plano-convex lens 98, the portable device display portion 2e can be visually recognized through the wall portion 96. In the example of FIG. 8A, the portable device display unit 2e can be visually recognized through a plano-convex lens 98 having a sound reflecting surface 94e.

Also in the amplifier 90, a plurality of sound reflecting surfaces 94a to 94e are arranged non-parallel so that the polygonal sides 91a to 91e are non-parallel to each other. Therefore, according to the amplifier 90, the volume of the sound output from the portable device 2 can be amplified and the sound quality can be further improved, as in the above-described amplifier 1.

In the amplifier 90, since the plurality of sound reflecting surfaces 94a to 94e are the convex surfaces of the plano-convex lens 98, spherical aberration can be reduced when viewing the portable device display unit 2e facing the convex surface. Therefore, blurring of the image displayed on the mobile device display unit 2e can be suppressed, and the image can be visually recognized more clearly.

In addition, since the cross-sectional shape of the corner reinforcing portion 19 is circular, the corner reinforcing portion 19 is a plano-convex lens as compared to the case where the cross-sectional shape is a triangle or a quadrangle and one side is joined to the plano-convex lens 98. The area of the portion joined to 98 is reduced. Therefore, even when the corner reinforcing portion 19 is provided, the plane width dimension of the plano-convex lens 98 can be secured more widely.
Further, by rotating the amplifier 90, the direction in which the portable device display unit 2e is viewed can be changed.

[Sixth Embodiment]
9 and 10 show an amplifier 100 according to a sixth embodiment. The basic configuration of the amplifier 1 according to the first embodiment and the amplifier 100 according to the sixth embodiment described above is the same, and different points will be mainly described here. Moreover, the same code | symbol is attached | subjected to the component similar to 1st Embodiment. The amplifier 100 is of a type that is attached to a wall surface such as a room or a bathtub, a mirror, a window, or the like.

The housing body 103 includes a housing space 5 for housing the mobile device 2 and a wall 106. An insertion opening 7 is provided on one end side 106 a of the wall 106.
An inner wall surface 109 of the wall portion 106 includes a plurality of sound reflecting surfaces 114a to 114e that connect polygonal vertices 112a to 112e.
In the present embodiment, the polygon has 5 corners. Unlike the first embodiment, the width dimensions of the sound reflecting surfaces 114a to 114e are not the same. Therefore, the shape connecting the vertices 112a to 112e is an unequal side pentagon as shown in FIG. The opening shape in the insertion opening 7 is also an unequal side pentagon.

The sound reflecting surfaces 114a to 114e are arranged non-parallel so that the polygonal sides 111a to 111e are non-parallel to each other. For example, as shown in FIG. 10A, the third sound reflecting surface 114c and the fourth sound reflecting surface 114d facing the first sound reflecting surface 114a are parallel to the first sound reflecting surface 114a. It is arranged not to become. That is, on the same plane that traverses the containing space 5 in the width direction X, the apex 112c and the apex of the third sound reflecting surface 114c with respect to the side 111a that connects the apex 112a and the apex 112b of the first sound reflecting surface 114a The side 111c that connects 112d and the side 111d that connects the vertex 112d and the vertex 112e on the fourth sound reflecting surface 114d are located non-parallel. The sound reflection surfaces 114a to 114e that define the accommodation space 5 are all flat.

The wall portion 106 is provided with an opening portion 120 on the front side, and

openings

121 and 122 are provided on the side surface side. The opening position and opening area of the opening 120 correspond to the position of the portable device display unit 2e when the portable device 2 (FIG. 2) is accommodated, and are equal to or larger than the area of the portable device display unit 2e. Designed to be The opening positions and opening areas of the

openings

121 and 122 are designed to correspond to the positions and sizes of the adjustment buttons such as the charging cable connection port and volume of the mobile device 2 to be accommodated.
Further, a step portion 113 is provided on the other end side 106b of the wall portion 106 so that the lower end 2a (FIG. 2) of the portable device 2 can be placed on the step portion end face 113a in the same manner as the amplifier 1. ing. In the present embodiment, the step portions 113 are provided at both left and right end portions of the storage space 5. An opening 124 is formed at the bottom of the housing main body 103.

The rear wall portion 106 is provided with an opening 123 and a through hole 126 for attaching the amplifier 100 to a wall surface, a mirror, a window or the like. The amplifier 100 is formed of a plastic such as polycarbonate or acrylic in order to reduce the weight. Unlike the amplifier 1, the recess 31 is not provided at the bottom of the amplifier 100. In addition, the sound output from the portable device 2 is output to the outside of the amplifier 100 from the

other openings

120, 121, 122, and 124 in addition to the insertion opening 7.

As illustrated in FIG. 10A, the amplifier 100 is attached to, for example, an indoor wall surface 129 via an attachment member 128 such as a suction cup fitted in the through hole 126.
Also in the amplifier 100, a plurality of sound reflecting surfaces 114a to 114e are arranged non-parallel so that the polygonal sides 111a to 111e are non-parallel to each other. Therefore, according to the amplifier 100, the volume of the sound output from the portable device 2 can be amplified and the sound quality can be further improved as in the above-described amplifier 1.

In the amplifier 100, since the opening 120 is provided, the portable device display unit 2e can be visually recognized or operated through the opening 120. In addition, a charging cable can be connected to the portable device 2 through the

openings

121 and 122, and an adjustment button such as a volume of the portable device 2 can be operated. Further, the charging cable can be connected to the portable device 2 provided with the charging cable connection port at the lower end 2a through the opening 124.
Further, by providing the opening 124, when the sound output unit 4 is provided at the lower end 2a of the mobile device 2, the excessive sound generated by the bass being strongly reflected to the bottom surface is suppressed, and the sound is muffled. Can be prevented.

In addition, since the plurality of

openings

120, 121, 122, 123, and 124 are formed, the amplifier 100 can be reduced in weight, thereby reducing the risk of dropping when the amplifier 100 is attached to the wall surface 129 or the like. It can be reduced. When the amplifier 100 is attached to the wall surface 129, the opening 123 is blocked by the wall surface 129 where the amplifier 100 is attached. Thereby, the wall surface 129 exposed from the opening 123 also exhibits the same function as the sound reflecting surface 114a.

By using a flexible suction cup formed of a material such as resin or rubber as the mounting member 128 of the amplifier 100, vibration transmission from the wall surface 129 to the amplifier 100 and vibration from the amplifier 100 to the wall surface 129 are performed. Transmission is suppressed. Thereby, the blurring of the sound can be further reduced.

[Seventh Embodiment]
FIG. 11 shows an amplifier 130 according to the seventh embodiment. The basic configuration of the amplifier 100 according to the sixth embodiment described above and the amplifier 130 according to the seventh embodiment are the same. Here, differences from the above-described amplifier 100 will be mainly described. Moreover, the same code | symbol is attached | subjected to the component similar to 1st Embodiment and 6th Embodiment. Similarly to the amplifier 100, the amplifier 130 is of a type that is used by being attached to a wall surface such as a room or a bathtub, a mirror, a window, or the like.

The housing main body 133 includes a housing space 5 for housing the mobile device 2 (FIG. 2), a wall 136, and an insertion opening 7. The inner wall surface 139 of the wall portion 136 includes a plurality of sound reflecting surfaces 144a to 144g connecting the polygonal apexes 142a to 142g.
In the present embodiment, the number of corners of the polygon is 7, and the width dimensions of the sound reflecting surfaces 144a to 144g are not the same. Accordingly, the shape connecting the vertices 142a to 142g is an unequal side heptagon as shown in FIG. Moreover, the opening shape in the opening part 7 for insertion is also an unequal side heptagon. Similar to the amplifier 100, the sound reflecting surfaces 144a to 144e are arranged non-parallel so that the polygonal sides 141a to 141g are non-parallel to each other.

The amplifier 130 includes a mounting protrusion 148 that protrudes outward from the outer wall surface 138 of the wall 136. A through hole 149 is formed in the attachment protrusion 148. An attachment member 128 such as a suction cup is fitted into the through hole 149, and the amplifier 130 can be attached to the wall surface 129 or the like via the attachment member 128.

The amplifier 130 has the same advantages as the advantages of the amplifier 100 described above. In addition, in the amplifier 130, the mounting protrusion 148 protrudes from the outer wall surface 138 to the outside of the housing main body 133. Therefore, when the amplifier 130 is mounted on the wall surface 129, the mounting member is attached to the wall surface 129 exposed from the opening 123. 128 does not exist. Therefore, since the covering region covered with the attachment member 128 is not formed on the wall surface 129 exposed from the opening 123, it is possible to prevent the sound reflection function from being lowered for the covering region.

[Eighth Embodiment]
FIG. 12 shows an amplifier 150 according to the eighth embodiment. The amplifier 150 is obtained by providing the above-described amplifier 100 with a mobile device stopper 151 and a buffer material 160. In FIG. 12, for the sake of explanation, the inner structure of the housing main body 103 is indicated by a dotted line, and the portable device 2 accommodated in the housing main body 103 is indicated by a two-dot chain line.

The portable device stopper 151 includes a suction cup portion 152 that is attracted to the wall surface 129, a stopper projection portion 153 that extends from the suction cup portion 152 in a direction perpendicular to the wall surface 129, and a presser that extends from the stopper projection portion 153 toward the housing body portion 103. Part 154. In the present embodiment, the mobile device stopper 151 is a flexible member formed of resin, rubber or the like.
When the portable device 2 is inserted into the accommodating space 5 and accommodated in the accommodating main body portion 103, the suction cup portion 152 with respect to the accommodating main body portion 103 so that the tip 154a of the pressing portion 154 contacts the upper end side tip surface 2f of the portable device 2. The attachment position of is determined. Further, in the present embodiment, as shown in FIG. 12A, a pressing portion 154 is disposed at the center portion in the width direction of the upper end side tip surface 2 f in the portable device 2.

The cushioning material 160 is provided on the step portion end surface 113a. In the present embodiment, as described above, since the step portions 113 are provided at the left and right end portions of the storage space 5, one cushioning material 160 is provided on each of the two step portion end surfaces 113a, that is, two in total. is set up.
The buffer material 160 is made of sponge, resin, rubber, or the like. The upper surface 161 of the cushioning material 160 is a curved surface protruding upward. When the portable device 2 is accommodated in the accommodation main body 103, the size and installation position of the cushioning material 160 so that the left and right ends 2 g and 2 h of the lower end 2 a of the portable device 2 are in contact with the upper surface 161 of the cushioning material 160. Is appropriately selected.

When the portable device 2 is accommodated in the amplifier 150, the tip 154a of the holding portion 154 of the stopper 151 for portable device comes into contact with the top end surface 2f of the portable device 2, and the portable device 2 moves to the insertion opening 7 side. Disturb that. Therefore, the amplifier 150 can prevent the portable device 2 from jumping out of the insertion opening 7 even when the housing main body 103 is shaken. Moreover, since the stopper 151 for portable devices is formed of a flexible member, the portable device 2 remains in a state in which the suction cup portion 152 is attracted to the wall surface 129 and the housing body 103 is attached to the wall surface 129. Can be taken in and out of the housing main body 103.

In addition, when the portable device 2 is accommodated in the amplifier 150, the left and right ends 2g and 2h of the lower end 2a of the portable device 2 contact the cushioning material 160 without directly contacting the stepped portion end surface 113a. Therefore, the vibration of the portable device 2 itself transmitted to the amplifier 150 can be reduced. Further, since the upper surface 161 of the cushioning material 160 is a curved surface, both

end portions

2g and 2h at the lower end 2a of the portable device 2 are in point contact with the upper surface 161. Therefore, since the part which the buffer material 160 contacts the portable apparatus 2 becomes small, said vibration reduction effect can be improved more.

[Other Embodiments]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention. For example, although the case where the amplifier 1 according to the first embodiment is used in the vertical direction has been described, the amplifier 1 may be used in the horizontal position like the amplifier 90 according to the fifth embodiment.

Moreover, in the amplifier 1 etc. which concern on 1st Embodiment-8th Embodiment, the length dimension in the insertion direction Y of the accommodating main-body part 3 etc. is longer than the width dimension in the width direction X of the accommodating main-body part 3 etc. However, it is not limited to this, The length dimension in the insertion direction Y of the accommodating main body part 3 or the like may be shorter or the same as the width dimension in the width direction X of the container main body part 3 or the like.

Moreover, in the example shown in FIG. 2, although the sound output part 4 is provided in the lower end 2a of the portable apparatus 2, it is not limited to this. For example, the sound output unit 4 may be provided in the back side upper part 2c (FIG. 2) or the back side lower part 2d of the mobile device 2.
In the example shown in FIGS. 1 and 2, the width dimension W2 of the portable device 2 is equal to the distance connecting the midpoints 28 between the vertexes of the sound reflecting surfaces 14a to 14e facing each other, but the portable device 2 having other width dimension W2 is used. The amplifier 1 may be formed so as to correspond to For example, the distance from the first sound reflecting surface 14a to the joint 36 between the third sound reflecting surface 14c and the fourth sound reflecting surface 14d is equal to the width dimension W2 of the mobile device 2 to be accommodated. You may design. Further, as shown in FIG. 2, the portable device 2 accommodated in the accommodating space 5 may be held in an inclined state with respect to the stepped portion end surface 23a, or is perpendicular or substantially perpendicular to the stepped portion end surface 23a. May be held.

In the amplifiers 1 and the like according to the above-described embodiments, the polygonal number of angles is an odd number, but the present invention is not limited to this, and the polygonal number of angles may be an even number. For example, a plurality of sound reflecting surfaces may be arranged non-parallel so that the sides of the quadrangle are non-parallel to each other. In this case, the interior angles of the quadrilateral are different from each other.

In the amplifier 1 and the like according to the first to eighth embodiments, each component may be formed of any material. For example, it may be made of wood or paper. Each component may be formed of a transparent or translucent member, or may be formed of an opaque member having no translucency.

In the above-described amplifier 1, the thickness dimension of the wall portion 6 is such that the thickness dimension T1 at the center position 15 between the adjacent vertices 12a to 12e is thinner than the thickness dimension T2 at the position 16 closer to the vertices 12a to 12e. It may be the same or the same. The shape of the corner reinforcing portion 19 may be any shape, and the corner reinforcing portion 19 may not be provided. Further, the portable device holding unit may not be provided in the amplifier 1 and the like according to each of the above-described embodiments.

In the above-described amplifier 70, the sound quality is adjusted by putting water or glass beads in the sound quality adjusting space 73. However, the sound quality may be adjusted by putting another material in the sound quality adjusting space 73.
Further, in the amplifier 70 shown in FIG. 6, the two

amplifiers

1 and 50 that can be attached to and detached from each other are combined. However, the present invention is not limited to this. Good. For example, in the example shown in FIG. 6B, the fitting space 65 may not be provided. Furthermore, the amplifier 70 may be integrally formed so that the inner bottom surface 22 of the amplifier 1 and the inner bottom surface 62 of the amplifier 50 are the same without forming the gap 75 and the recess 31.

In the amplifier 1 or the like according to each of the above-described embodiments, a lid that covers the insertion opening 7 may be provided.
In the amplifier 1 and the like according to the first to eighth embodiments, the housing body 3 and the like are formed so as to cover the entire portable device 2, and the upper end 2 b of the portable device 2 is for insertion. It is not exposed to the outside of the housing body 3 or the like from the opening 7 or the like. However, the amplifier 1 or the like according to each of the above embodiments may be formed so that a part of the portable device 2 is exposed to the outside of the housing main body 3 or the like. For example, the lower end 2 a of the portable device 2 may be accommodated in the accommodation space 5, and the upper end 2 b of the portable device 2 may be exposed outside the insertion opening 7 without being accommodated in the accommodation space 5.
The dimensions of each part are all examples and are not limited to the numerical values described above.

In addition to the above embodiment, the following additional notes will be made.
(Appendix 1)
A portable device output sound amplifier for amplifying sound output from a portable device,
A housing body for housing the portable device;
The housing body is
An accommodation space in which the portable device is inserted and accommodates the portable device; and
A wall portion having an inner wall surface that defines the accommodation space;
The portable device is formed on one end side of the wall portion in the insertion direction in which the portable device is inserted, and includes an insertion opening for inserting the portable device.
The accommodation space is formed to extend in the insertion direction,
The inner wall surface includes a plurality of sound reflecting surfaces that connect the vertices of a polygon, and the plurality of sound reflecting surfaces are arranged non-parallel so that the sides of the polygon are non-parallel to each other. amplifier.

(Appendix 2)
The portable device output sound amplifier according to appendix 1, wherein the polygon has an odd number of corners.

(Appendix 3)
The portable device output sound amplifier according to Supplementary Note 1 or Supplementary Note 2, wherein the polygon is a pentagon or a heptagon.

(Appendix 4)
4. The portable device output sound amplifier according to any one of appendix 1 to appendix 3, wherein the sound reflecting surface is a plane.

(Appendix 5)
The wall is formed of a transparent member;
The portable device output according to any one of appendix 1 to appendix 3, wherein an outer wall surface of the wall portion is formed in a flat shape, and the plurality of sound reflecting surfaces are convex inwardly in the accommodation space. Sound amplifier.

(Appendix 6)
The portable device output sound amplifier according to any one of appendix 1 to appendix 4, wherein the wall portion has a thickness dimension at a center position between adjacent apexes that is thicker than a thickness dimension at a position closer to the apex. .

(Appendix 7)
The portable device output according to any one of appendices 1 to 6, wherein the wall portion includes an angular reinforcing portion that extends along the outer wall surface of the wall portion and protrudes outward from the housing main body portion at the apex. Sound amplifier.

(Appendix 8)
The housing body is
An accommodation body bottom provided on the other end side of the wall in the insertion direction;
The housing main body bottom includes an inner bottom surface that defines the housing space;
From the supplementary note 1, the inner bottom surface is formed at a position closer to the one end side than the tip on the other end side in the wall portion, and a recess is formed from the tip on the other end side toward the inner bottom surface. The portable device output sound amplifier according to any one of appendix 7.

(Appendix 9)
The portable device output sound amplifier according to any one of appendix 1 to appendix 8, wherein a distal end surface on the other end side of the wall portion in the insertion direction is a curved surface protruding outward of the housing main body portion.

(Appendix 10)
The housing body includes a housing body bottom on the other end of the wall in the insertion direction,
The housing main body bottom is
An inner bottom surface defining the accommodation space;
A portable device holding unit for holding the portable device;
From the supplementary note 1, the portable device holding portion is formed at a position closer to the one end side of the wall portion than the inner bottom surface so as to hold a predetermined space between the portable device and the inner bottom surface. The portable device output sound amplifier according to any one of appendix 9.

(Appendix 11)
The portable device output according to any one of appendices 1 to 10, wherein a sound quality adjusting space is defined between the wall portion and the outer wall surface, and the sound quality adjusting outer wall portion extends along the wall portion. Sound amplifier.

(Appendix 12)
An outer container part for accommodating the accommodating body part;
The housing body includes a housing body bottom on the other end of the wall in the insertion direction,
The housing main body bottom portion includes an inner bottom surface that defines the housing space, and a concave portion is formed from a tip of the other end side of the wall portion toward the inner bottom surface,
The portable device output sound amplifier according to any one of Supplementary Note 1 to Supplementary Note 11, wherein the outer container portion includes a fitting space into which the other end side of the wall portion is fitted.

1, 50, 70, 80, 90, 100, 130, 150 Amplifier 2

Portable device

3, 53, 93, 103, 133 Accommodating body 4

Sound output unit

5, 55

Accommodating space

6, 56, 96, 106, 136

Wall Part

6a, 106a One end side of the

wall part

6b, 106b The other end side of the wall part 6c The tip of the other end side of the

wall part

7, 57

Insertion opening part

9, 59, 98b, 109, 139 Inner wall face 12a-12e, 52a ~ 52g, 112a ~ 112e, 142a ~ 142g Vertex 13a ~ 13e, 51a ~ 51g, 111a ~ 111e, 141a ~ 141g Sides connecting the apexes 14a ~ 14e, 54a ~ 54g, 114a ~ 114e, 144a ~ 144g

Sound reflecting surface

18, 58, 98a, 138

Outer wall surface

19, 69 Square reinforcing part 21 Housing main body

bottom part

22, 62

Inner bottom face

23a, 63a, 113a Step Parts edge (portable device holding portion)
31, 61 Recess 65 Space for fitting

Claims

A portable device output sound amplifier for amplifying sound output from a portable device,
A housing body for housing the portable device;
The housing body is
An accommodation space in which the portable device is inserted and accommodates the portable device; and
A wall portion having an inner wall surface that defines the accommodation space;
The portable device is formed on one end side of the wall portion in the insertion direction in which the portable device is inserted, and includes an insertion opening for inserting the portable device.
The accommodation space is formed to extend in the insertion direction,
The inner wall surface includes a plurality of sound reflecting surfaces,
The plurality of sound reflecting surfaces are provided so as to connect the vertexes of a polygon when viewed from the insertion opening,
A portable device output sound amplifier in which the plurality of sound reflecting surfaces are arranged non-parallel so that the sides of the polygon are non-parallel to each other.
The portable device output sound amplifier according to claim 1, wherein the polygon has an odd number of corners.
The portable device output sound amplifier according to claim 1 or 2, wherein the polygon is a pentagon or a heptagon.
The portable device output sound amplifier according to any one of claims 1 to 3, wherein the sound reflecting surface is a flat surface.
The wall is formed of a transparent member;
The portable device according to any one of claims 1 to 3, wherein an outer wall surface of the wall portion has a flat shape, and the plurality of sound reflection surfaces have a convex shape that is convex inward of the accommodation space. Output sound amplifier.
5. The portable device output sound according to claim 1, wherein the wall portion has a thickness dimension at a center position between the adjacent vertices larger than a thickness dimension at a position closer to the vertices. amplifier.
The portable device according to any one of claims 1 to 6, wherein the wall portion includes a corner reinforcing portion that extends along an outer wall surface of the wall portion and protrudes outward from the housing main body portion at the apex. Output sound amplifier.
The housing body is
An accommodation body bottom provided on the other end side of the wall in the insertion direction;
The housing main body bottom includes an inner bottom surface that defines the housing space;
2. The inner bottom surface is formed at a position closer to the one end side than the tip on the other end side of the wall portion, and a recess is formed from the tip on the other end side toward the inner bottom surface. The portable device output sound amplifier according to claim 7.
The portable device output sound amplifier according to any one of claims 1 to 8, wherein a tip surface on the other end side of the wall portion in the insertion direction is a curved surface protruding outward from the housing main body portion. .
The housing body includes a housing body bottom on the other end of the wall in the insertion direction,
The housing main body bottom is
An inner bottom surface defining the accommodation space;
A portable device holding unit for holding the portable device;
2. The portable device holding portion is formed at a position closer to the one end side of the wall portion than the inner bottom surface so as to hold a predetermined space between the portable device and the inner bottom surface. The portable device output sound amplifier according to claim 9.
The portable device output according to any one of claims 1 to 10, further comprising a sound quality adjusting outer wall portion that defines a sound quality adjusting space between the wall portion and the outer wall surface and extends along the wall portion. Sound amplifier.
An outer container part for accommodating the accommodating body part;
The housing body includes a housing body bottom on the other end of the wall in the insertion direction,
The housing main body bottom portion includes an inner bottom surface that defines the housing space, and a concave portion is formed from a tip of the other end side of the wall portion toward the inner bottom surface,
The portable device output sound amplifier according to any one of claims 1 to 11, wherein the outer container part includes a fitting space into which the other end side of the wall part is fitted.