WO2003063131A1

WO2003063131A1 - Resonance device and surround system

Info

Publication number: WO2003063131A1
Application number: PCT/JP2002/000362
Authority: WO
Inventors: Makoto Nagai; Akihiko Isaka; Noboru Ueno; Shohei Shiimura; Sadayoshi Yasuda
Original assignee: Sankyo Seiki Mfg. Co., Ltd.
Priority date: 2002-01-18
Filing date: 2002-01-18
Publication date: 2003-07-31
Also published as: JPWO2003063131A1

Abstract

A resonance device (10) capable of increasing a tone quality and a sound level by selectively tuning up the frequencies of musical sounds played by a music box and formed of parts of different sizes in similar shapes for low, medium, and high frequency ranges stacked on top of each other, comprising a box body (12) allowed to resonate with the sounds generated from the music box and three leg parts (24) supporting the box body, wherein a stepped reflector (22) allowing the sounds of specified frequencies to selectively resonate for amplification by the distances A, B, C, and D in depth is disposed in a resonance space (28) in the box body (12) and fixed to a rear plate (18), slits (19) are formed in a front plate (20) opposed to the stepped reflector (22), and thee music box is placed on the upper plate (26) positioned on the uppermost stage of the box body (12).

Description

Description Resonator and sound system

The present invention relates to a resonance device for expanding sound generated by a sounding body such as a music box and improving sound quality, and a sound system using the resonance device. Background art

The mechanisms of music boxes are well-known and are roughly classified into cylinder type and disk type.Both are housed in wooden boxes, etc., and the sound generated by the vibration valve of the music box itself is small, and there is no sound expansion device. However, the sound transmitted from the bottom plate on which the sounding mechanism is installed cannot sufficiently sound the delicate tone of the music box. Therefore, according to the music box disclosed in Japanese Utility Model Laid-Open No. 7-88993, slits 3a, 3b, and 3c are formed in the bottom plate 5 of the music box, and two sounding pieces 5a, At 5b, the vibration resonates down to the low frequencies and a reverberation effect is obtained. In other words, the vibration of the music box is transmitted to the two pieces of sound and resonates each sound at different frequencies.

However, since the reverberation piece is formed on the bottom plate of the music box, the number of reverberation pieces is limited, and only a resonance effect of a limited frequency can be obtained. Furthermore, since the reverberation piece is formed within the limited range of the bottom plate, the degree of freedom of the reverberation piece shape is also limited. In addition, the sound piece is amplified by the principle of leverage, but is easily affected by the moisture content of the bottom plate and changes over time. Furthermore, the music box is a finished product in one unit, and the frequency range to be emphasized cannot be changed as desired. Accordingly, an object of the present invention is to provide a resonance device that can resonate the sound generated by a sounding body, for example, a musical sound played by a music box, with a wider frequency range from low to high, thereby expanding the generated sound and improving the sound quality. It is to provide. Then, the frequency range to be emphasized by the resonance device is freely selected and resonated. In addition, it is intended to maintain its original function without being affected by aging even after long-term use. Also, it is easy to change the frequency band of your choice (bass, midrange, treble) according to the music and personal preference. What's more, it's about getting the reverberation time of your choice. Further, another object of the present invention is to provide a unique acoustic effect that cannot be obtained by a sounding body alone due to an appropriate arrangement combination between the sounding body and the resonance device.

In order to achieve the above object, a resonance device of the present invention includes: a resonator that resonates with generated sound of a sounding body such as a music box; and a transmission unit that transmits the generated sound of the sounding body to the resonator. Make a summary.

(That is, the sounding body and the resonance device that can resonate the frequency band to be emphasized as desired are formed separately.)

In the above-described resonance device of the present invention, the following modification may be adopted.

(1) The resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside.

(2) In the modification of (1), depth adjusting means for adjusting the depth of the resonance space inside the resonance box with respect to a sound wave having a predetermined frequency is provided.

(3) The transmission means comprises at least one leg, and the leg is It has a predetermined contact area with the sound body or other resonance box, and a shape that increases the sound pressure transmitted through the legs.

(4) In the modified example of (3), the leg portion includes three leg members, and is provided on a bottom surface of the resonance box.

(5) In the modification of (1), the opening of the resonance box is formed in a slit shape.

Also, the sound system of the present invention

A sounding body such as a music box, a resonator, and a transmission means for transmitting generated sound of the sounding body to the resonator, wherein the resonator resonates with the transmitted generated sound and resonates sound waves to the outside. It is configured to emit to obtain a desired acoustic effect.

In the above-described sound system of the present invention, the configuration of the following modified example may be adopted.

(6) The resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside.

(7) In the modification of (6), a plurality of the resonance boxes are provided, and a resonance space of each resonance box is formed so as to resonate with a sound wave in a predetermined frequency range. The box is in contact via the transmission means.

(8) In the modification of (7), the plurality of resonance boxes are a first resonance box that resonates with high-range sound waves, a second resonance box that resonates with medium-range sound waves, And a third resonance box that resonates with low-frequency sound waves.

(9) The transmission means includes at least one connecting member, and the resonator is connected to the sounding body or another resonator by the connecting member.

(10) In the modified example of (9), the transmitting means includes a plurality of leg members provided on a bottom surface of the sounding body or the resonance box. They are in contact with each other via leg members. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of one embodiment of a resonance device according to the present invention. FIG. 2 is a plan view of the embodiment of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. FIG. 4 is a front view showing a mode in which high-, medium-, and low-frequency parts of the resonance apparatus according to the present invention are stacked and used in a set. FIG. 5 is a sectional view showing a second embodiment of the reflector of the resonator according to the present invention. FIG. 6 is a front view showing a third embodiment of the leg of the resonance device according to the present invention. FIG. 7 is a side view showing a fourth embodiment of the leg of the resonance device according to the present invention. FIG. 8 is a schematic diagram showing one embodiment of the resonator constituting the resonator of the present invention. FIG. 9 is a schematic view showing another embodiment of the resonator. FIG. 10 is a schematic view showing various modified examples of the resonance box. FIG. 11 is a schematic diagram showing still another modification of the resonance box. FIG. 12 is a schematic diagram showing an example of the configuration of the legs of the resonance box. FIG. 13 is a schematic diagram showing one embodiment of the sound system of the present invention. FIG. 14 is a schematic diagram showing another embodiment of the sound system of the present invention. FIGS. 15 to 19 are schematic views showing still another embodiment of the sound system of the present invention. FIG. 20 is a schematic view showing still another embodiment of the resonance apparatus of the present invention. FIG. 21 is a schematic diagram showing still another embodiment of the sound system of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the resonance apparatus and the sound system of the present invention will be described. FIG. 1 is a perspective view of one embodiment of the resonance device 10 according to the present invention, FIG. 2 is a plan view, and FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. Figure 4 shows the parts of the high-frequency resonance device 10-1, the mid-range resonance device 10-2, and the low-frequency resonance device 10-3. FIG. 10 is a front view of a resonator set 100 showing a mode in which the resonators are stacked and used in a set. In the following, common members are indicated by the same two-digit number, and in particular, subscripts are used to distinguish each part, -1 is a member of the high-frequency resonator, -2 is a member of the mid-range resonator,- 3 shows the components of the bass range resonance device.

For convenience of explanation, a mid-range resonance device 10-2 having a resonance box 12-2 as an example of a resonator as a basic component of the resonance device according to the present invention is shown in FIGS. 2 and 3. Side plates 1 5-2 and 16 -2 are provided on the left and right sides of the bottom plate 14 -2, a back plate 18-2 on the back and an opening 19 with a slit 19-2 on the front. The front plate 20-2 is provided. The back plate 18-2 has a wooden step-like reflection inside the rectangular parallelepiped resonance box 12-2 as a depth adjusting means that has a depth difference so that it resonates with each frequency sound. The plate 22-2 is fixed to the back plate 18-2 at a position inside the rear surface facing the front plate 20-2. Three legs 24-2 are fixed to the lower surface 14 a-2 of the bottom plate 14-2 to form a space 25-2.

Also, the upper surface plate 26-2 is fixed by providing a gap s of 1 to 2 mm between the bottom plate 14-2 and the upper surface of the stepped reflection plate 22-2. 2 is included in the box 1 2 -2. The legs 24-2 as the transmission means are shown as square pillars, but may be polygonal pillars or cylinders (see FIG. 5). Further, as shown in FIG. 6, the leg portion 24a may be formed by an inverted truncated cone. Cones and pyramids (triangular pyramids, quadrangular pyramids, etc.) can be used as inverted truncated cone legs. That is, the transmission means has a function of increasing the propagation sound pressure, and is not limited to a shape or the like.

FIG. 4 shows an embodiment in which three resonators 10 -1, 10-2, and 10 -3 having similar shapes are stacked. The high-frequency resonance device 10-1 smaller than the mid-range resonance device 10-2 has a bottom plate 14-1 with legs 24-1, side plates 15-1, 16-1, and a top plate 26. -1 and staircase reflector 2 2 -1 with back plate 1 8-1, slit 1 9 A resonance space 28-1 is formed in the resonance box 1 2-1 consisting of the front plate 20-1 with -1, and the bottom surface of the bottom plate 1 4-1 is spaced by legs 2 4-1. It can be placed on the upper part of the mid-range resonance device 10-2 through the provided space 25-1. In addition, it has a similar shape to the mid-range resonance device 10-2, and similarly has a bottom plate 14-3 with legs 24-3, side plates 15-3, 16-3, top plate 26-3, Larger low-frequency resonance device 10-3 consisting of back plate 18-3 with stepped reflector 22-3 and front plate 20-3 with slit 19-3 is replaced with middle-range resonance device A space section 25-2 can be provided under the leg section 24-2 of 10-2. Either a disk type or a cylinder type as the boxed music box 30 shown by the two-dot chain line can be placed on the top plate 26-1 of the resonator 10-1 at the top in the figure. FIG. 5 shows a second embodiment of a reflector resonance device 10a using a curved reflector 23 instead of the step reflector 22 as the depth adjusting means. The same reference numerals are used for members common to the above-described embodiments without adding a subscript. The support of all of the above resonators 10-1, 10-2, 10-3, 10a defines a plane with three points supported by three legs 24. The pressure on its legs will be evenly applied, so that the sound will not be distorted or rattled. The leg portions 24 shown in FIGS. 2 and 5 are cylindrical or prismatic, but the inverted truncated cone 24 a is used in the resonator 10 b shown in FIG. 6 as the third embodiment. To reduce the pressure receiving area to increase the transmitted sound pressure. In FIG. 6, the same reference numerals are used for members common to those in the above-described embodiment without suffixes.

If four legs are used, depending on the condition of the installation surface and the bottom surface of the resonance box 12, the pressure applied to any one of the remaining legs whose plane is determined by the three legs 24 However, there is a possibility that the sound will be distorted or chatter because it is different from the others. Therefore, in the case where the number of legs is unavoidable in terms of configuration or design, any one of the four legs may be used as in the resonator 10c of the fourth embodiment shown in FIG. The leg of the book is formed on the short fixing boss 32 and a screw hole is provided vertically, and the adjusting screw 33 is screwed in to adjust the depth of screwing so that each leg transmits pressure evenly. . In FIG. 7, the same members as those in the above embodiment are denoted by the same reference numerals without any subscript. In a conventional boxed music box, the vibration plate is not directly connected to the legs, but a felt or rubber is attached to the legs so that vibration is not transmitted to the lower table. The idea of the configuration is basically different from that of the box of the resonance device related to the above.

The upper panel 26 is made of a spruce wood acoustic board with good sounding wood grain, which softens the metallic sound coming out of the diaphragm and makes the sound longer and more comfortable to the ears. Make it sound good. Furthermore, it is preferable to perform a surface treatment with particularly well-purified ceramics. A conventional music box with a conventional diaphragm housed in a box hears the sound of the diaphragm directly or through the glass or plastic that makes up the box, so it usually has a metallic or hard sound. It has become.

As shown in Fig. 4, when resonators 10-1 and 10-2 and 10-3 of different sizes are stacked, the bass with a long wavelength is transmitted to the lowest bass resonator 10-3 at the bottom. You. In addition, since a high frequency sound having a short wavelength is easily absorbed by vibration, the vibration is transmitted only to the uppermost treble resonance device 10-1. As a result, treble from the uppermost treble resonance device 10-1, treble from the middle treble resonance device 10-2, and bass from the lower treble resonance device 10-3 are lower. It occurs in each of the separated states.

In this way, when the resonators 10-1, 10-2, and 10-3 are stacked, the air inside the uppermost resonator 10-1 vibrates and is placed on the upper plate 26-1. The vibration amplified by the vibration generated by the sounding body (music box 30) (not shown) is transmitted via the legs 24-1 to the upper plate 2 6 • 2 of the resonator 10-2 placed below, Transmitted to the lower resonator 10-3 via legs 24-2 O

The embodiments of the resonance apparatus according to the present invention have been described above. However, the resonance apparatus of the present invention is not limited to the illustrated embodiment, and its shape, configuration, and the like deviate from the essential components of the present invention. It is expected that various changes in details and modifications such as reconfiguration of parts can be made without departing from the scope.

For example, a simple hollow body 1OA as shown in FIG. 20 can be used as the resonator. Also, by changing the height and width of the internal space of the resonance box 12, the internal volume can be changed, and the length of reverberation time can be changed. Also, the corresponding resonance frequency can be changed by changing the depth. Furthermore, the shape of the resonance box body 12 is not limited to a rectangular parallelepiped, but can be made deep by forming the back plate 18 and the front plate 20 or the back plate 18 or the front plate 20 into a curved shape. Continuous changes can be made. The intention of the resonance device according to the present invention is to place a sounding body other than a music box on the resonance device to amplify and resonate vibration to obtain a similar effect.

Further, in the resonance device of the present invention, the resonator may not be the resonance box, and may be, for example, a resonator including parabolic curved plate members la, lb, and 1c as shown in FIG. The members are connected by fixed legs 2a, 2b, 2c.

FIGS. 9 (a) and 9 (b) show an embodiment in which a cylindrical member 3 is used as a resonance body. FIG. 9 (a) shows a fixed connecting leg 3a on the body of the cylindrical member 3, and FIG. 3 a is provided at the end of the cylindrical member 3.

Although the specific example of the depth adjusting means of the resonance box has been described, the depth 4a of the resonance box 4 may be variously modified as shown in FIGS. 10 (a) to 10 (f). Alternatively, as the internal structure of the resonance box, a not-shown partition wall is provided, a multi-layer structure is provided, or a back load horn is formed. The shape may be a flat Helmhol tube as shown in FIG. 11 (a) or a drawn Helmhol tube as shown in FIG.

Further, as for the legs as the transmitting means, posture stabilizing legs 5a and 5b may be provided as auxiliary in addition to the three legs 2 as shown in FIG.

Next, a sound system utilizing the function of the resonance device of the present invention will be described. As shown in Figs. 4, 6, and 7, a sounding body, for example, a music box 30 is placed on a resonance device, and the sound generated by the music box 30 is transmitted to the resonance device, and the resonance sound generated by the device is emitted to the outside. O A basic configuration of a sound system that can enhance the above-mentioned generated sound and improve sound quality

In this sound system, the vibration of the music box 30 (sound-producing body) indicated by the two-dot chain line is transmitted to the upper plate 26-1 of the high-range resonance device 10-1, and vibrates the air inside the resonance space 28-1. Let it. At this time, the depth dimension composed of the back plate 18-1 and the front plate 20-1 is divided into four stages, A, B, C, and D, by the action of the stepped reflector 22-1. The bass resonates with A, the middle resonates with B and C, and the treble resonates with D.

Therefore, high-frequency sound waves that selectively resonate at the respective frequencies are emitted to the outside from the slit 19-1, and furthermore, the high-frequency resonance device 10-1 itself vibrates, and the sound waves due to the high-frequency sound resonance apparatus 10-1 also vibrate. Released into the air. Hereinafter, the vibration of the high-range resonance device 10-1 is transmitted to the middle-range resonance device 10-2 via the legs 24-1 and vibrates the air inside the resonance space 28-2, and the stairs having different depth dimensions The sound wave in the mid-range of the frequency that resonates due to the action of the circular reflector 22-2 is emitted to the outside from the slit 19-2. Further, the vibration of the mid-range resonance device 10-2 itself is transmitted to the low-range resonance device 10-3 via the legs 24-2, and similarly, the air inside the resonance space 28-3 is vibrated, and the depth dimension is also increased. Of stepped reflector 22-3 A low-frequency sound wave with a frequency that resonates with the light is emitted outside from the slit 19-3.

The box that houses the music box 30 has a wooden board on the inside and a double wall surrounding the hollow room to adjust the weight of the resonance box 12 and the size of the internal space that affect sound. You may be able to. That is, according to this configuration, the appearance and sound quality can be changed by appropriately selecting the type of the outer plate.

Also, by adjusting the type and thickness of the plate material stretched on the inside, for example, applying a plate material with a different density to form a box (sound body) of the same size and different weight, or a resonance box of the same weight 1 and 2 can be formed in different internal spaces. The box that makes up the conventional music box is a box that affects the sound quality by applying the same size box to a music box of the same size, regardless of the sound frequency range of the music box that is housed. The weight of the car and the adjustment of the interior space were not taken into account.

The sound system of the present invention can be freely combined with the sounding body and the resonance device, and various configurations can be made by the combination. That is, in the above-mentioned sound system, the music box as the sounding body is simply placed on the resonance device, and no special generated sound transmission means is used, but fixed connection legs, a plurality of legs, etc. are used as the transmission means. Thus, various sound systems can be configured according to the combination of the sounding body and the resonance device.

For example, as shown in FIG. 13, the resonator 1 of FIG. 8 is connected to a music box 30 as a sounding body by fixed connecting legs 2 c, or as shown in FIGS. 14 (a) and (b). The sound system is constituted by connecting the resonator 3 of the tubular member shown in FIGS. 9 (a) and 9 (b) to the music box 30 by the fixed connecting leg 3c. FIGS. 15 to 19 show other embodiments of the sound system of the present invention, respectively. The sound system of FIG. 15 has a high-frequency and medium-frequency resonance box 15 1 and 15 2 integrally fixed. The connecting legs 15 1 a and 15 2 a are connected to the bass resonance box 15 3, and the box 15 3 is placed on the music box 30 via its legs 15 3 a. It consists of

In the sound system of FIG. 16, the medium resonance box 16 1 is diagonally connected to the bass resonance box 16 3 by the connecting member 16 2, and The music box 30 is fixed by fixed connecting legs 16 4.

In the sound system shown in Fig. 17, 171, 172, and 173 are high-, medium-, and low-frequency resonant boxes, respectively, and are connected to the legs 171a, 172a, and 173a. The music box 30 is placed on the high-pitched resonance box via its legs 30a. Also, on the music box 30, treble and middle resonance boxes 174, 175 are placed via legs 174a, 175a, respectively. In addition, on the side of the music box 30, high and medium resonance boxes 176, 177 are connected by fixed connecting legs 176a, 177a.

In the sound system of Fig. 21, the resonators 200, 201, and 202 are in contact with the side and back of the music box 30.

As shown in FIGS. 18 and 19, the music box 30 may be used in a state where the sound generating mechanism 30b is exposed without being stored in a box. Here, 18 1 and 19 1 are resonance boxes, and 18 1 a and 19 l a are integrally fixed connecting legs. Industrial applicability

As is apparent from the above description, according to the resonance device of the present invention, By simply changing the number of steps and the size of the stepped reflector, the depth dimension can be set even when there is no stepped reflector, so that the sound of the frequency to be emphasized can be easily amplified as planned. it can. Furthermore, not only can a wide range of sounds from treble to bass be louder by using a combination of similar resonance devices, but also by selecting a resonance device, specific The sound can be selectively amplified.

Moreover, the reverberation time can be changed by changing the height and width of the internal space of the hollow wooden box to change the volume, or by changing the board thickness. In addition, an air vibration (resonance) inside the wooden box provides a vibration amplification effect.

Further, the resonance device of the present invention does not necessarily need to use a resonance box, and can be configured by disposing various resonance bodies or resonance boxes in combination. Further, according to the sound system of the present invention, the sound generated by the sounding body can be expanded and the sound quality can be improved by combining the sounding body such as a music box and the resonance device in a desired manner.

In particular, by selecting a sound system and listening to music box performances, users can enjoy music played by music boxes with their favorite sound quality and volume.

In addition, the audible range of the middle and low frequency ranges is widened according to the configuration of the sound device of the sound system, so that sounds that cannot be heard only with the conventional sounding body can be obtained.

The application of the music box can be further expanded and used as an automatic music playing device.

Claims

The scope of the claims

1. A resonance device comprising: a resonator that resonates with generated sound of a sounding body; and a transmission unit that transmits the generated sound of the sounding body to the resonator.

2. The resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside. The resonance device according to claim 1, wherein:

3. The resonance device according to claim 2, further comprising depth adjustment means for adjusting a depth of a resonance space inside the resonance box for a sound wave having a predetermined frequency.

4. The transmitting means is composed of at least one leg, and the leg has a predetermined contact area with the sounding body or another resonance box, and a shape which increases sound pressure transmitted through the leg. 3. The resonance device according to claim 1, wherein the resonance device has:

5. The resonance device according to claim 4, wherein the leg portion includes three leg members and is provided on a bottom surface of the resonance box.

6. The resonance device according to claim 2, wherein an opening of the resonance box is formed in a slit shape.

7. A sounding body, a resonator, and transmission means for transmitting sound generated by the sounding body to the resonator, wherein the resonator resonates with the transmitted generated sound and emits a sound wave that resonates to the outside. A sound system configured to obtain a desired sound effect.

8. The resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside. 8. The sound system according to claim 7, wherein:

9. A plurality of the resonance boxes are provided, and a resonance space of each resonance box is formed so as to resonate with a sound wave in a predetermined frequency range, and the sounding body and each resonance box are transmitted through the transmission means. The sound system according to claim 8, wherein the sound system is in contact with the sound system.

10. The plurality of resonance boxes are a first resonance box that resonates with high-range sound waves, a second resonance box that resonates with medium-range sound waves, and a second resonance box that resonates with low-range sound waves. 10. The sound system according to claim 9, comprising three resonance boxes.

11. The transmission device according to claim 7, wherein the transmission means includes at least one connecting member, and the resonator is connected to the sounding body or another resonator by the connecting member. The described sound system.

12. The transmitting means comprises a plurality of leg members provided on the bottom surface of the sounding body or the resonance box, and the sounding body and the box are in contact with each other via the leg members. The sound system according to claim 10, characterized in that: