JP5237495B1 - Rotating instrumental resonance sound generator - Google Patents

Abstract

Disclosed is an instrumental resonance sounding device by rotation that includes an aesthetic appearance and incorporates musicality into resonance sounding.
A sounding tool is provided at a central portion on a base of a device base, a rotating tube is fitted into the central portion, and a repellent is provided from the rotating tube. A mandrel 12 that moves up and down in a loosely fitted state is provided inside the rotary tube 18, a resonator 1 is provided around the mandrel 12, and a hoisting bracket 8 is provided on the upper surface thereof. A device lid 3 provided with a resonator sound emitting hole 26 is placed, and a plurality of strings 7 are arranged from the device base 2 to the device lid 3 around the sounding tool 11 inside the resonator 1. Tighten with hoisting bracket 8. The cylindrical cover 4 covering the device lid 3 and provided with the cover space sound emitting hole 28 is fitted with the sound wave adjusting disk 5 fitted on the outer periphery of the device lid 3 and provided with the adjusting sound emitting hole 29 on the upper surface thereof.
[Selection] Figure 2

Description

The present invention relates to a musical instrument resonance sound generator using rotation that can provide a feeling of bonding such as a feeling of healing and a feeling of peace.

In order to solve the shortcomings caused by using water, the reverberant sound in the water-filled cave is recorded and the sound source sound is resonated with the sound emitted from the speaker in the cavity. There are water koto shoes that radiate from the diffusion holes to the outside. Patent Document 1 is known as prior art information relating to this invention.

Next, there is a cavity-resonant sounding device that vibrates due to the magnetic interaction between the permanent magnet and the electromagnet, and gives vibration to the frame cavity wall to generate resonance, and a piezoelectric buzzer. It is used as Patent Document 2 is known as prior art information relating to this invention.

7-60316 JP 7-140984 A

“Study on Suikogoku” No.4, p.63-75 Watanabe Yoshio “Analytical Study of the Acoustical Mechanism of Suikogoku”, Published by the Japan Suikokutsu Forum, 2007, p.1-15

      Resonant sound waves generated by various generation methods including these are used with their characteristics limited depending on the purpose of use. However, among the characteristic factors of resonance sound waves, long-time and overtone characteristics are considered important for resonance generators.

Therefore, the present invention solves such a problem, and in a musical instrument resonance sounding device by rotation, generating a long-time and overtone resonance sound with the shape of the sounding tool and a plurality of strings, The purpose is to provide a new musical instrument-like resonance tone, and to add the added value of aesthetic appearance in order to increase its value.

In order to solve the above-mentioned problems, a rotating instrumental resonance sounding device according to the present invention includes a device base, a sounding tool disposed at the center thereof, and a rotating tube disposed in a central hole of the sounding tool and rotating. A mandrel that moves up and down in a loose fit inside the rotating tube, a repellent disposed on the rotating tube, a resonator disposed around them, and a hoisting metal fitting on the upper surface of the resonator A device lid provided with a resonator sound emission hole, a plurality of strings arranged around the sounding tool from the device base to the device lid inside the resonator, and a cover space sound emission covering the device lid A cylindrical cover provided with a hole and a sound wave adjusting disk provided with an adjustment sound emitting hole on its upper surface are provided.

With respect to the above-described structure and the operation between the structures, a repellent is disposed in the center of the apparatus base from the rotating tube at the upper part of the sounding device disposed. A mandrel that moves up and down in the fitted state is incorporated. The tip of the repelling is set to be larger than the distance of the plurality of strings from the center of the rotating tube on the center. In addition, there are a plurality of strings not contacting the outer periphery of the sounding tool at a distance of about a thickness. The shape of the sounding tool is
The outer periphery is rounded and the inside is a hollow cylindrical thin wall with an upper end opening and a lower end closing.

By rotating the rotating tube, the tip of the repellent collides with the string in the horizontal position and causes the string to vibrate. The vibration causes a sound source sound by causing an impact vibration to the sounding tool by contact with the sounding tool outer periphery. In parallel, a sound source sound having a resonance frequency that is unique to the material of the sounding tool is emitted from the hollow cylindrical interior by the impact vibration. This difference in location is an important factor in extending the resonance time. The sound source wave radiated from the sound generator spreads over the entire cavity through incidence and reflection on the wall surface and the device base, and eventually changes to a resonance sound having a natural frequency. And in the action, it strongly interacts (resonates) with the frequency of the natural elastic vibration of the resonator due to the vibration of the string.
And, by generating multiple strings with different thicknesses and tensions and performing the mandrel lowering operation together, it is possible to give vibration to the selected string without hitting the side string. As described above, a harmonic resonance sound that is an integral multiple of a plurality of different resonance frequencies is emitted along with long-time characteristics, and the continuity of the resonance sound emits a musical tone.

The shape of the resonator having the above working space has a bell shape with a cylindrical part length L1 / L = 2/3 and a small diameter length L2 / L = 1/3. The bell-shaped resonator uses a hard, non-absorbing ceramic that does not absorb water in order to reduce absorption of the natural frequency in the cavity and maintain natural elastic vibration of the wall. In this way, in the resonator cavity,
Resonant sound wave energy consisting of the natural frequency and sound pressure, which is greatly increased by resonance, is partially absorbed, but most of it is stored in the cavity. The cavity is shaped like a bell and has a good resonance sound emission effect, and radiates from a plurality of resonator sound emission holes of the device lid, which is a ceiling. The resonant sound energy radiated from the sound emission hole to the cylindrical cover space is
Some are absorbed and attenuated, but this space is more accumulated because it is a small space. The accumulated resonance sound wave is radiated to the outside by adjusting the cover space sound emitting hole and the adjusting sound emitting hole by the rotation of the sound wave adjusting disk. The locations of the sound emitting holes are the upper surface in order to improve the aesthetic appearance because the subject is irregularly arranged in the application room or the gathering place to be used.

The above porcelain is generally a name including porcelain, and the raw material is porcelain stone and its component minerals. A resonator made of ceramic is a mass-produced product that is produced by casting an inner mold and an outer mold according to a drawing and casting by the mold.

The resonator is made of porcelain. The resonator is made of translucent porcelain stone and its constituent mineral raw materials, and the resonator is made translucent. Light emitting diodes (LEDs) and battery boxes for power supply or By providing the external power supply tool and the switch in the instrumental resonance sounding device with the above-described configuration, the added value can be further improved in terms of appearance of color light and aesthetic appearance.

A manual handle is provided at the tip of the rotating tube, and a push head is attached to the tip of a mandrel that moves up and down in a loose fit inside the rotating tube, so that the operation of the rotating tube and the push head is performed by an individual. As a result, it is possible to freely select a string at a specific position from a plurality of strings, apply vibration at the magnitude and speed of impact, and generate a resonance (resonance) frequency possessed by the string. The interval is also free, and the operation makes it possible to hear the instrumental resonance sound of resonance pronunciation on personality.

By attaching an electric drive motor that rotates the rotating tube, an electric extrusion unit that extrudes the mandrel on the upper surface of the cylindrical cover, and a control device that controls both components.
It is automatically performed continuously according to the setting contents. This automatically selects a string at a specific position from a plurality of positions, vibrates the string with the magnitude and speed of impact at a set amount, and automatically generates the resonance (resonance) frequency held by that string. Done. Therefore, since it is automatically performed continuously on a plurality of strings, it is possible to improve the instrumental performance and to listen to the instrumental resonance sound by sharing the subject.

The value can be improved by incorporating the aesthetic appearance of the resonator and the translucent resonator with ceramics, and the device base, the cylindrical cover, and the sound wave adjusting disc with lacquering or surface treatment. However, the aesthetic appearance of ceramic art and lacquer art here is not a one-of-a-kind craft, such as painting techniques on the ceramic exterior and gold-plated or lacquer painting techniques on the exterior of the lacquerware. Ceramic color and lacquerware are products that can be produced in large quantities in lacquer color.

In the above, non-patent document 1 is known as prior art information regarding resonator-shaped experimental technical information in which the shape of the resonator and the light-transmitting resonator is a bell shape. In addition, the resonance reverberation sound from the generation of the sound source sound to the emission in the suikinkutsu cavity, and the relationship between these sounds,
As for the technical information studied through the experiment analysis, Non-Patent Document 2 is known as prior art information.

As for the resonator and the translucent resonator, the material is porcelain and the raw material is porcelain stone and its component minerals. It is a consistent description in each document that porcelain has translucency and translucency. However, at present, even with the same material name / raw material name, the presence or absence of translucency and semi-translucency is determined, and the boundary is unclear. In addition, the boundary between translucency and translucency is unclear. Therefore, in the musical instrument resonance sound generation device by rotation of the present invention, the same material and shape are used, but the same expression and appearance are used, but the appearance expression is different. A translucent ceramic made of porcelain stone and its constituent minerals was a translucent resonator.

By adopting such a configuration, the following effects can be obtained according to the present invention.
(a) By rotating the rotating tube and lowering the mandrel, different resonance frequencies of multiple strings with different thicknesses and tensions generate harmonic resonance sounds that are integral multiples, and the continuity of them generates a musical tone. It is possible to provide a novel instrumental resonance sound generator by rotation.
(b) By selecting a material that includes the shape of the sounding instrument and high density rho, and by selecting a chord with a wire diameter and high tension, a better tone, vibrato / tremolo effects, transparency and nature, and long-lasting resonance It is possible to provide a musical instrument resonance sound generation device using a novel rotation that generates sound waves.
(c) By adding translucency to the resonator, the aesthetic appearance is further improved by the color light appearance expression,
It is possible to provide an instrumental resonance sound generation device by a new rotation with added value.
(d) By manually operating with the manual handle and the push head, a string at a specific position is freely selected from a plurality of strings, and vibration is applied at the magnitude and speed of the impact. Resonance) frequency is generated. It is possible to provide a musical instrument resonance sound generation apparatus by a new rotation with a free spacing.
(e) A string at a specific position is selected from a plurality of strings by automatic operation by an electric drive motor, an electric push-out unit and a control device, and the string is vibrated with the magnitude and speed of impact with a set amount. The generation of the resonance (resonance) frequency held by the string is automatically performed. Therefore, since it is performed continuously and automatically on a plurality of strings, the instrumental performance is improved, and it is possible to provide a novel instrumental resonance sounding device by rotation that can share the instrumental resonance sound with the subject.
(f) Resonator and translucent resonator with ceramic color in ceramic color and equipment base, cylindrical cover and sonic wave adjusting disk with lacquered lacquer or surface treatment with aesthetic appearance expression In this way, it is possible to provide a musical instrument resonance sound generator using a new rotation with added value.

FIG. 1 is a plan view of an instrumental resonance sound generator by rotation according to the present invention, and FIG. 2 is A1-A in FIG.
It is a fragmentary sectional view on 1 line. This will be described below with reference to the drawings.

In this basic structure, the sounding tool 11 is disposed in the central portion of the apparatus base 2, and the rotating tube 18 is fitted in the central portion, and the repellent 15 is disposed in the rotating tube 18. . Further, a mandrel 12 that moves up and down in a loosely fitted state is disposed inside the rotary tube 18. The resonator 1 is disposed around them, and the device lid 3 provided with the hoisting metal fitting 8 and provided with the resonator sound emitting hole 26 is placed on the upper surface of the resonator 1. Inside the resonator 1, a plurality of strings 7 arranged around the sounding tool 11 from the device base 2 to the device lid 3 are provided with a plurality of hoisting brackets 8.
It has been lifted. A cylindrical cover 4 that covers the device lid 3 and has a cover space sound emission hole 28 is fitted into the device lid 3. The sound wave adjusting disk 5 is provided with an adjustment sound emitting hole 29 at its upper end.

The lower part of the sounding tool 11 is disposed in the center hole diameter of the device base 2 as a base in a clearance fit state. A rotating tube 18 that rotates to the diameter of the central hole of the sounding tool 11 is fitted into the clearance fit, and a repellent 15 is disposed on the upper portion thereof from the rotating tube 18. The rotating tube 18 and the repellent 15 are built into the rotating tube 18 with a shaft 12 that moves up and down by clearance fit. The rotation of the repellent 15 is performed by the rotating tube 18, and the downward movement is performed by lowering the mandrel 12. Perform by operation. Around them, the inner diameter of the resonator 1 is fitted on the device base 2 with an interference fit. On the upper surface of the resonator 1, the device lid 3 is provided with a plurality of hoisting metal fittings 8 at the outer diameter of the rotary tube 18 at the center of a clearance fit and provided with a plurality of resonator sound emitting holes 26. Is placed. Inside the resonator 1, a plurality of strings 7 having different thicknesses are arranged around the sounding tool 11 from the device base 2 to the device lid 3, and are stretched by the hoisting brackets 8.
Therefore, the device base 2, the resonator 1, and the device lid 3 include a plurality of strings 7 and a plurality of hoisting tools 8.
It is fixed with. Further, when the string 7 and the repellent 15 are exchanged, all the hoisting brackets 8 are loosened and the resonator 1 and the device base 2 are opened. The hoisting bracket 8 here is a commercially available product that is used for musical instruments such as guitars and does not loosen during normal times. Covering the device lid 3,
A cylindrical cover 4 provided with a plurality of cover space sound emission holes 28 at the upper end closing portion of the hollow cylindrical shape is fitted and attached to the apparatus lid 3. At the upper end thereof, there is provided a sound wave adjusting disk 5 fitted for rotation and provided with an adjustment sound emitting hole 29. The adjustment sound emission hole 29 and the cover sound emission hole 28 are also used for fine adjustment of the tension applied by each string 7.

As for the relationship between the sounding tool 11, the repellent 15 and the string 7, the repellent 15 is disposed on the upper part of the sounding tool 11 from the rotary tube 18 at a distance that does not interfere. The tip of the repellent 15 is set larger on the center than the distance of the string 7 from the center of the rotary tube 18. In addition, a plurality of strings 7 are arranged on the outer periphery of the sounding tool 11 without contacting with a distance of about a thickness. The shape of the sounding tool 11 is rounded at the outer periphery, and the inside is a cylindrical hollow thin wall with an upper end opening and a lower end closing.

By rotating the rotary tube 18, the tip of the repellent 15 collides with the string 7 in the lateral position and causes the string 7 to vibrate laterally. The vibration causes an impact vibration by the outer circumference contact of the sound generator 11 and emits a sound source. The resonance frequency fG in the lateral vibration of the string 7 is expressed by the following equation.
fG = 1 / 2L√T / ρ
Here, L is the length of the string, T is the tension of the string, and ρ is the linear density. The relationship with the overtone in this equation is overtone.

Next, a sound source sound having a resonance frequency that is unique to the material of the sound generator 11 is emitted from the inside of the cylindrical hollow by the impact vibration of the sound generator 11. The resonance frequency fP of the air column inside the hollow cylinder is expressed by the following equation.

fP = C / 4 (L + α)
Here, C is the sound propagation speed on the material, L is the length of the air column, and α is the aperture correction. The relationship with the overtone in this equation is overtone.

The sound source wave radiated from the sound generator 11 spreads over the entire cavity through incidence and reflection on the wall surface and the device base 2, and eventually changes to a resonance sound having a natural frequency. And during the action, it interacts strongly with the frequency of the natural elastic vibration of the resonator 1 due to the vibration of the string 7 (resonance),
When coincident with the resonance natural frequency, the resonance frequency and sound pressure are greatly increased. Then, the generation source string 7 is selected without being applied to the horizontal string 7 by performing both the rotation operation of the rotary tube 18 and the lowering operation of the mandrel 12 by having a plurality of strings 7 having different thicknesses and tensions. The string 7 can be vibrated, and as a result, a harmonic resonance sound that is an integral multiple of a plurality of different resonance frequencies is emitted with a long time, and the continuity of the string 7 produces a musical tone.

The internal space of the resonator 1 surrounded by the reflection surface having the above-described working space has a natural frequency as an elastic body having a three-dimensional extent. In this shape, the length of the cylindrical part is L1 / L
= 2/3 and the length of the small diameter is a bell shape with L2 / L = 1/3. In such a shape,
A formula for obtaining the acoustic natural frequency fNMS of the three-dimensional closed space is described in p13 of Non-Patent Document 2 and is illuminated experimentally.

This bell-shaped resonator 1 uses a hard, non-absorbing ceramic that does not absorb water in order to reduce the absorption of the natural frequency in the cavity and maintain the natural elastic vibration of the wall. .
This is also a factor that lengthens the resonance time. In this way, a part of the resonance sound wave energy consisting of the natural frequency and the sound pressure that has been resonated and strengthened in the resonator cavity is partially absorbed, but most of it is stored in the cavity. The cavity is shaped like a bell and has a good resonance sound emission effect, and radiates from a plurality of resonator sound emission holes 26 of the device lid 3 which is a ceiling. A part of the resonance sound wave energy radiated from the resonator sound emission hole 26 to the cylindrical cover space 27 is absorbed and attenuated, but this space is further accumulated because it is a small space. The accumulated resonance sound wave is adjusted by the cover space sound emission hole 28 and the adjustment sound emission hole 29 by the rotation of the sound wave adjusting disk 5 and radiated to the outside. The adjustment sound emission hole 29 is not limited to one place by adjusting the resonance frequency and the sound pressure, and a plurality of adjustment sound emission holes 29 may be provided. The locations of the sound emitting holes are the upper surface in order to improve the aesthetic appearance because the subject is irregularly arranged in the application room to be used or the application gathering place.

The instrumental resonance sounding device by rotation according to the present invention emphasizes improvement of acoustic characteristics,
The material is included in it. The resonator 1 has been described above. Next, regarding the material of the device base 2, the device lid 3, the cylindrical cover 4, and the sound wave adjusting disk 5, wood is desirable from the viewpoint of improvement in the use record by acoustic characteristics and the aesthetic appearance. It is preferable from the viewpoint of products, product uniformity, and certain acoustic characteristics. Next, the sounding tool 11 is made of an alloy material, a non-ferrous material,
A steel material is desirable, but it is preferable as a ceramic molding material from the viewpoints of mass-produced products, product uniformity, and sound propagation speed of the medium material.

Regarding the relationship between the rotary tube 18, the mandrel 12, and the repellent 15, the mandrel 12 that moves up and down is built in the rotary tube 18 by a loose fit. The rotation of the repellent 15 is such that a cylindrical body 13 with a round bar is fitted by clearance fit on the outer periphery of the rotary tube 18 at the horizontal position, and is fastened through a small round bar 19a. Then, the elastic body 14b is fitted, and the repellent 15 is fitted to the inner diameter of the elastic body 14b to be fastened. Therefore, both the rotary tube 18 and the repellent member 15 are rotated by the rotation operation of the manual handle 9. In the downward movement of the repellent 15, the up and down mandrel 12 and the cylindrical body 13 with a round bar are fastened by a small round bar 19 a, and a long hole for guiding the small round bar 19 a is provided through the rotary tube 18. Therefore, by lowering the mandrel 12, the small round bar 19 a is lowered along with the cylindrical body 13 with the round bar along the guide long hole of the rotary tube 18. Then, the return is performed by the elastic force that restores the compression of the elastic body 14a. The operation is performed with the pusher head 10. The purpose of the operation is to select a certain string from a plurality of strings 7, generate a harmonic overtone resonance sound that is an integral multiple of a plurality of different resonance frequencies, and continuously generate a musical tone of resonance music. The lower center rod supporting the elastic body 14a plugs the inside of the rotary tube 18 and is integrated.

A string piece 6 is inserted into the upper surface of the apparatus base 2 at a portion where a plurality of strings 7 are fastened. This imparts vibration of the string 7 to the wall of the resonator 1 through the device base 2 and causes a natural frequency as an elastic body of the wall. In addition, the vertical adjustment tool 17 is fitted into the center lower hole diameter with a clearance fit, and the vertical height of the sounding tool 11 at the upper part is adjusted with two bolts and nuts so that a plurality of strings 7 are connected. Perform clearance adjustment. Along with the sound generator 11
It also serves to stop the rotation.

A self-lubricating bearing 16 is inserted into the central inner diameter of the sounding tool 11 to prevent the rotation of the rotary tube 18 from being transmitted. Next, the small round bar 19b press-fitted into the rotary tube 18 is a safety measure rod for preventing the rotary tube 18 from being pulled upward. In addition, a multi-layer washer is provided on the lower surface of the manual handle 9 that is the rotating contact surface and the lower surface of the mandrel 12 to improve the rotation smoothly.

Regarding the reference numerals of the resonator and the translucent resonator, both constituent parts have the same material and shape and the same purpose and function, and therefore, the resonator 1 includes the translucent resonator. Also,
The resonator is made translucent, and the light emitting diode (LED) 21, the power supply battery box 22 and the switch 23 are provided in the instrumental resonance sounding device by the rotation of the above configuration, so that color light appearance and aesthetic appearance can be achieved. Further improvement of added value.

FIG. 3 is a plan view of the instrumental resonance sound generator by rotation according to the present invention, and FIG.
It is a fragmentary sectional view on the A2 line. In the figure, the same reference numerals as those in FIGS. 1 and 3 denote the same components. An electric drive motor 32 through which the coupling 31 is passed and an electric push-out unit 34 that pushes the mandrel 12 on the upper surface of the cylindrical cover 4 are attached to the lower part of the rotary tube 18. A control device 35 is provided which is set so that rotation by the electric drive motor 32 and downward extrusion by the electric push-out unit 34 are automatically performed continuously.
In addition, a disk 33 is provided for positioning the rotary tube 18, and a bracket 36 is provided for holding the electric drive motor 32. This selects the string 7 at a specific position from the plurality,
The string 7 is vibrated with the magnitude and speed of the impact at the set amount, and the resonance that the string 7 has (resonance)
Generating the frequency is done automatically. Therefore, since the plurality of strings 7 are automatically performed continuously, the instrumental performance is further improved.

It is a top view of the musical instrument resonance sound generator by rotation concerning the present invention. It is a fragmentary sectional view on the A1-A1 line of FIG. FIG. 6 is a plan view showing an embodiment for carrying out another invention of a musical instrument resonance sound generator by rotation according to the present invention. FIG. 4 is a partial cross-sectional view taken along line A2-A2 of FIG.

DESCRIPTION OF SYMBOLS 1 Resonator 2 Apparatus base 3 Apparatus cover 4 Cylindrical cover 5 Sound wave adjustment disk 6 String piece 7 String 8 Lifting metal fitting 9 Manual handle 10 Push head 11 Sounding tool 12 Mandrel 13 Cylindrical body with a round bar 14a Elastic body 14b Elastic body 15 Repellent 16 Self-lubricating bearing 17 Vertical adjustment bracket 18 Rotating tube 19a Small round bar 19b Small round bar 21 Light emitting diode (LED)
DESCRIPTION OF SYMBOLS 22 Battery box for power supply 23 Switch 26 Resonator sound emission hole 27 Cover space 28 Cover space sound emission hole 29 Adjustment sound emission hole 31 Coupling 32 Electric drive motor 33 Disk 34 Electric extrusion unit 35 Control apparatus 36 Bracket

Claims (5)

An apparatus base, a sounding tool disposed at the center thereof, a rotating tube disposed in a central hole of the sounding tool and rotating, a mandrel that moves up and down loosely inside the rotating tube, and the rotating tube A resonator disposed around the resonator, a device lid provided with a hoisting metal fitting on the upper surface of the resonator, and a resonator sound emitting hole, and the resonator inside the resonator. A plurality of strings arranged around the sounding tool from the device base to the device lid, a cylindrical cover that covers the device lid and has a cover space sound emission hole, and a sound wave adjustment that has an adjustment sound emission hole on the upper surface Rotating musical instrument resonance sounding device characterized by comprising a disk The instrumental resonance sound by rotation according to claim 1, wherein the resonator has translucency, and includes a light emitting diode (LED), a battery box for power supply or an external power supply, and a switch. apparatus The rotation according to claim 1 or 2, wherein a manual handle is provided at a tip of the rotating tube, and a push head is attached to a tip of the mandrel that moves up and down in a loosely fitted state inside the rotating tube. Instrumental resonance sound generator 3. The electric drive motor for rotating the rotary tube, an electric push-out unit for pushing the mandrel on the upper surface of the cylindrical cover, and a control device for controlling both components are attached. Instrumental resonance sound generator The instrumentality by rotation according to claim 1 or 2, characterized in that the resonator is ceramic art, and the apparatus base, the cylindrical cover, and the sonic wave adjusting disk are lacquered or surface-treated to take an aesthetic appearance. Resonance sound generator

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