KR20130072650A - Stringed instrument electric bridge - Google Patents

Abstract

PURPOSE: An electrical bridge for a stringed instrument is provided to prevent the vibration generated in strings of the instrument from being transmitted directly to an instrument body and to precisely control sounds. CONSTITUTION: An electrical bridge for a stringed instrument includes an auxiliary bridge (11), a main bridge base, and a sound control unit. The auxiliary bridge unit supports strings generating vibration by a player and detects the vibration with sound pulse signals generated in the strings, thereby converting the same into electrical signals. The main bridge base maintains a shape of an internal space formed in the auxiliary bridge unit outside, supports each component of the auxiliary bridge unit to be safely fixed, and protect the components of the auxiliary bridge unit from external impact. The sound control unit receives the electrical signals generated in the auxiliary bridge unit and generates acoustic signals. The sound control unit controls and outputs at least one of the gains obtained by mixing the acoustic signals with a spatial zone effect and audio signals input from the outside.

Description

Stringed instrument electric bridge

The present invention relates to an electric bridge provided with a string instrument, and more particularly to an electric bridge for string instruments that can maintain the deep tone of the instrument while lowering the volume of the string instrument.

Recently, a device for enjoying a string instrument, such as a guitar (guitar) or a violin (violin) by automatic performance has been developed. String instruments use vibrations caused by strings and are mainly transmitted to the face plates of the body, whereby resonance occurs in the face plate, the back plate, and the cavities inside the body, thereby transmitting the sound to the instrument body. A string instrument is known which enables automatic performance by using the instrument's sound generating mechanism and directly vibrating the faceplate by an actuator.

This string instrument has a function of transmitting the vibration generated from the string to the instrument body using a bridge supporting the string. On the other hand, such a bridge does not have a separate function, such as precisely controlling the strength of vibration by itself due to the overall characteristics of the string instrument other than this function.

However, such stringed instruments have difficulty in lowering the volume played unlike other instruments when playing, so when playing in a house or in a place where sound is not sounded, it may cause inconvenience to others nearby. have. Therefore, in order to solve this problem, a means for reducing the volume of the externally generated instrument by reducing the vibration intensity of the string transmitted to the instrument body by inserting a damper using a metal or rubber material in the bridge. However, in the case of using a damper to reduce the volume of the stringed instrument as described above, there is a problem in that the performance of the instrument is effectively distorted even the original tone and sound of the instrument. In other words, it sings like a loud song, but because it covers your mouth with your hands to make a small sound, it is like making a stuffy sound.

In addition, most string instruments sold on the market have a problem in that they are much lower in sound generated compared to old instruments. The old musical instrument is a professional performance musical instrument produced by a craftsman and has a period of more than 100 years. The sound generated by the old musical instrument is mysterious, and anyone who plays the musical instrument is a musical instrument that anyone wants to have.

However, the number of old musical instruments that can be used for performances in the world at present is limited in number, and since they are expensive instruments ranging from tens to tens of billions, it can be said that it is almost impossible for ordinary people to play easily.

Accordingly, an object of the present invention is to provide an electric bridge for stringed instruments that can maintain the deep tones of the musical instrument while lowering the volume of the stringed instrument.

Another object of the present invention is to provide an electric bridge for stringed instruments that can effectively solve the demand for the tone of the performer by providing the sound of an expensive old musical instrument even using a low-cost stringed instrument.

Characteristic of the electric bridge for string instruments according to the present invention for achieving the above object is an electrical signal by detecting the vibration generated by the acoustic pulse signal generated in the string, while supporting the string (string) for generating vibration by the player A secondary bridge portion for converting to a secondary bridge, a main bridge base for maintaining the shape of the internal space formed in the secondary bridge portion from the outside, supporting each component of the secondary bridge portion to be securely fixed, and protecting it from external impact, and the secondary bridge portion And a sound control controller for generating a sound signal by inputting an electrical signal generated by the control unit, and adjusting and outputting at least one of a gain through a spatial system effect and a mix with an externally input audio signal. It is characterized by.

Preferably, the sound control controller may include an input unit for inputting a piezoelectric sensor electric signal output from the auxiliary bridge unit, an operational amplifier unit for amplifying the electrical signal input to the input unit, and an electric signal amplified by the operational amplifier unit. And an output unit for outputting a sound signal controlled by the sound control control unit to at least one of a vibrator of a string electric bridge and a connected external amplifier. .

Preferably, the sound control control unit is configured to further include an external input unit which is connected to the external audio and mixes an externally input audio signal with a signal input from the piezo sensor to adjust an independent gain. It features.

Preferably it is connected to the external audio, characterized in that it further comprises an external input unit for mixing the audio signal input from the outside with the electrical signal amplified by the operational amplifier.

Preferably, the auxiliary bridge part supports an auxiliary bridge room in which a vibrator body composed of a vibrator case, a winding coil bobbin, a vibrator winding coil, a magnetic material, a damper, and a vibration transmitting part pad is built in, and a string is supported. And an auxiliary bridge receiving the vibration generated from the string for the first time, a piezo sensor for generating an electrical displacement and applying the vibration transmitted from the auxiliary bridge to the input of the sound control control unit, and a second conical vibration damper. The second metal pad supporting the auxiliary bridge and the piezo sensor from the bottom by distributing the vibration by disposing the four at the lower part, and the sharp part of the second conical vibration damper attached to the second metal pad are damaged. A first metal pad which prevents vibration and blocks vibration generated from the vibrator inside the vibrating unit room; A vibration absorber which is in contact with one surface of the inner pad and blocks the metallic vibration from the first metal pad and the second metal pad other than the vibration received from the auxiliary bridge from reaching the piezo sensor, and the vibration generated from the vibrator is the main bridge base. And a shock / vibration prevention spring that does not reach the piezo sensor and stably fixes the vibrator case by a force pushing down the vibrator case. Positioned, characterized in that it comprises a vibration transmission pad made of a soft film to prevent the varnish of the instrument body in close contact due to the continuous vibration.

Preferably, the main bridge base is fixed to the boundary wall of the auxiliary bridge room, respectively, to prevent the auxiliary bridge from tilting back and forth when unwinding and twisting the string of the instrument, and the vibration generated by the vibrator inside the vibrating unit room is prevented. The first conical vibration damper to attenuate the transmission to prevent the howling phenomenon, and the damping material is attached to the interface in close contact with the instrument body to prevent the vibration of the body to be transmitted to the main bridge base, each of which has two each of the front and rear and Characterized in that it comprises a foot so that there is no inclination in the left and right directions.

The electric bridge for string instruments according to the present invention as described above has the following effects.

First, the vibration generated in the string of the instrument is not directly transmitted to the body of the instrument, so that the sound can be precisely controlled, there is an effect that can be selectively adjusted by the user.

Second, by reproducing the virtual performance by using the sampled sound source, the sound of the luxury musical instrument is applied to obtain the effect as if playing an old musical instrument.

Third, by enriching the sound of the instrument sounds to soften the sound, the user to create the desired sound has the effect of making the player feel the fun for the instrument and music.

1 is a block diagram showing the structure of an electric bridge for string instruments according to an embodiment of the present invention
2 is an exploded view showing the structure of an electric bridge for string instruments according to an embodiment of the present invention
3 is a block diagram illustrating in detail the structure of the sound control controller of FIG. 2;

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Referring to the accompanying drawings, a preferred embodiment of the electric bridge for string instruments according to the present invention will be described. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to let you know. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

1 is a block diagram showing the structure of an electric bridge for string instruments according to an embodiment of the present invention, Figure 2 is an exploded view showing the structure of an electric bridge for string instruments according to an embodiment of the present invention.

As shown in Figs. 1 and 2, the electric bridge includes an auxiliary bridge 11, a first conical vibration damper 13, a piezo sensor 14, a dust absorber 15, a first metal pad 16, and a second conical vibration damper. (17), second metal pad (18), vibration preventing spring (19), vibrator winding coil (20), damper (21), vibrator case (22), magnetic body (23), foot (24), winding coil bobbin (25), a vibration transmitting pad (26), a vibrating room (27), and an auxiliary bridge room (28), the string (10) generating vibration by the player While supporting, the auxiliary bridge unit for detecting vibrations generated in the string and converting them into electrical signals, and maintaining the shape of the internal space formed in the auxiliary bridge unit from the outside, and supporting each component of the auxiliary bridge unit to be securely fixed and external A sound signal is generated by inputting the main bridge base 12 to protect against shock and the electric signal generated from the auxiliary bridge part. And, by controlling the acoustic signal to be generated it consists of the acoustic control control unit 100 for output.

At this time, the sound control control unit 100, as shown in Figure 3, the input unit 110 for inputting the piezoelectric sensor electric signal output from the auxiliary bridge unit, and the electrical signal input to the input unit 110 An operational amplification unit 120 for amplifying, an effector control unit 130 for outputting an electric signal amplified by the operational amplification unit 120 by applying a spatial system effect by a player's selection, and the sound control control unit 100. It is composed of an output unit 140 for outputting a sound signal controlled in the) to the vibrator of the string electric bridge to operate or output to the connected external amplifier. In addition, it may further include an external input unit 140 connected to the external audio to mix the audio signal input from the outside with the electrical signal amplified by the operational amplifier 120.

Referring to the structure and driving operation of the electric bridge for string instruments according to the present invention configured as described above in more detail as follows.

As described above, since the electric bridge for stringed instruments according to the present invention can be largely divided into the main bridge base 12, the auxiliary bridge portion, and the acoustic control control unit 100, it will be described in detail for each configuration .

First, the main bridge base 12 is intended to maintain the shape of the internal space of the auxiliary bridge room 28 and the vibrator room 27, and to secure and secure each internal component of the auxiliary bridge part. In addition, two first conical vibration dampers 13 are fixed to the boundary wall of the auxiliary bridge room 28 in both directions, which prevents the auxiliary bridge 11 from tilting back and forth when unwinding and twisting the string of the instrument. And securely fixed to the original position and at the same time attenuating the vibration generated in the vibrator inside the vibrating unit room 27 to the auxiliary bridge 11 to prevent the howling phenomenon.

The foot 24 is located at the interface in close contact with the body of the instrument and is attached to a soft absorbent material so that the vibration of the body is not transmitted to the main bridge base 12 to prevent damage to the varnish of the body of the instrument. In addition, there are two on each side so that there is no tilt in the front, rear, left and right directions.

Next, the auxiliary bridge 28 has a shock / vibration prevention spring 19 and a vibrator integrated therein. Moreover, the vibrator body is comprised from the vibrator case 22, the winding coil bobbin 25, the vibrator winding coil 20, the magnetic body 23, the damper 21, and the vibration transmission part pad 26. As shown in FIG. In addition, the auxiliary bridge 28, the auxiliary bridge 11, the piezo sensor 14, the dust absorber 15, the first metal pad 16, the second metal pad 18, the second conical vibration damper 17 It is composed of a), and the top of the auxiliary bridge (11) has four strings (instrument strings) (10) to perform the same function as the existing bridge to receive the vibration generated from the string for the first time. In addition, the material of the auxiliary bridge 11 is produced using spruce wood or ebony wood.

With the above configuration, the auxiliary bridge unit 28 is one of important components for receiving an acoustic pulse signal, converting it into vibration, transmitting vibration to the body of the instrument, and making a sound.

The shock / vibration preventing spring 19 prevents vibration generated from the vibrator from reaching the piezo sensor 14 through the main bridge base 12 and is stably fixed by a force that pushes the vibrator case 22 downward. To be.

The vibration transmitting pad 26 is in contact with the instrument body at the final point for transmitting the vibration of the vibrator to the instrument body and is made of a soft film to prevent the varnish of the instrument body in close contact due to the continuous vibration is damaged. It became.

The piezo sensor 14 is connected to the input unit 110 of the sound control control unit 100, the electrical displacement occurs due to the vibration transmitted from the auxiliary bridge 11, this electrical signal is input to the input unit 110 Is approved.

The dust absorber 15 prevents metallic vibrations from reaching the piezoelectric sensor 14 in the first metal pad 16 and the second metal pad 18 other than the vibration received from the auxiliary bridge 11.

The first metal pad 16 has a sharp portion of the second conical vibration damper 17 attached to the second metal pad 18 to prevent damage to the absorber 15 and the piezo sensor 14. The vibration generated from the vibrator inside the eastern room 27 is blocked. This is to prevent the howling phenomenon by blocking the vibration generated from the vibrator to be received by the piezo sensor 14 again.

The second metal pad 18 includes a second conical vibration damper 17, and four are arranged to disperse the vibration and to securely support the auxiliary bridge 11 and the piezo sensor 14 from the bottom.

Lastly, the sound control controller 100 includes an input unit 110, an operational amplifier 120, an external input unit 150, an effector control unit 130, and an output unit 140.

In the piezoelectric sensor 14 of the stringed electric bridge, the vibration is converted into an electrical signal and applied to the input unit 110. Next, amplify the electric non-signal sent to the operational amplifier 120. At this time, the audio signal input by connecting to the external audio can be mixed with the signal input from the piezo sensor 14, and an independent gain can be adjusted according to the selection.

The audio signal from the operational amplifier 120 may enable the effect controller 130 to apply a spatial system effect. This can adjust the gain according to the player's choice. It is also possible to bypass the bypass circuit and not apply the spatial effect.

The output unit 140 may operate the vibrator of the string electric bridge, and output to an external amplifier according to the selection. It can also support two outputs at the same time.

Accordingly, it is possible to realize the functions and performance of the string electric bridge as much as possible, and the functions of the electric strings, the amplifier speakers, and the effects can be realized in the classical string body by improving the function of the existing bridge. Thus, it is possible to play freely in any environment without restriction. This is advantageous in that the sound control control unit 100 can easily adjust the desired volume by simply controlling the volume and gain.

Although the technical spirit of the present invention described above has been described in detail in a preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (6)

An auxiliary bridge unit which detects the vibration generated by the acoustic pulse signal generated in the string and converts it into an electrical signal while supporting a string generating vibration by the player;
A main bridge base which maintains the shape of the internal space formed in the auxiliary bridge portion from the outside, securely supports each component of the auxiliary bridge portion, and protects it from external impacts;
Acoustic control adjustment to generate an acoustic signal using the electrical signal generated by the auxiliary bridge unit, and to adjust the output of at least one of the gain through the spatial system effect and the mix with the externally input audio signal to the generated acoustic signal Electric bridge for string instruments, characterized in that configured to include. The method of claim 1, wherein the sound control control unit
An input unit for inputting a piezoelectric sensor electrical signal output from the auxiliary bridge unit;
An operational amplifier for amplifying the electrical signal input to the input unit;
An effector controller for outputting an electric signal amplified by the operational amplifier by applying a spatial system effect by a player's selection;
And an output unit for outputting the sound signal controlled by the sound control control unit to at least one of an oscillator of a string electric bridge and a connected external amplifier. The method of claim 2, wherein the sound control control unit
An electric bridge for string instruments, comprising: an external input unit connected to an external audio and mixing an externally input audio signal with a signal input from a piezo sensor to adjust an independent gain . 3. The method of claim 2,
And an external input unit connected to external audio to mix an audio signal input from the outside with an electrical signal amplified by the operational amplifier. The method of claim 2, wherein the auxiliary bridge portion
An auxiliary bridge room in which an integrated vibrator is composed of a vibrator case, a winding coil bobbin, a vibrator winding coil, a magnetic material, a damper, and a vibration transmitting pad;
A secondary bridge that is supported by a string and receives the vibrations generated by the string for the first time,
A piezo sensor for generating an electrical displacement of the vibration transmitted from the auxiliary bridge and applying it to an input of an acoustic control controller;
A second metal pad including a second conical vibration damper and distributing the vibration by placing four at the bottom to support the auxiliary bridge and the piezo sensor at the bottom;
A first metal pad which has a sharp portion of the second conical vibration damper attached to the second metal pad to prevent damage to the piezo sensor and at the same time block vibration generated from the vibrator inside the vibrating unit room;
A dust absorber which is in contact with one surface of the first metal pad and prevents metallic vibrations from reaching the piezo sensor in the first and second metal pads other than the vibration received from the auxiliary bridge;
A shock / vibration prevention spring for preventing vibration generated from the vibrator from reaching the piezo sensor through the main bridge base and stably fixing the vibrator case with a force pushing downward;
In contact with the body of the instrument, the vibration of the vibrator is located at the final point for transmitting to the body of the instrument, and includes a vibration transmitting pad made of a soft film to prevent the varnish of the instrument body in close contact due to the continuous vibration Electric bridge for string instruments, characterized in that configured by. The method of claim 2, wherein the main bridge base is
It is fixed to the boundary wall of the auxiliary bridge room, respectively, to prevent the auxiliary bridge from tilting back and forth when unwinding and twisting the string of the instrument, and attenuates transmission of vibration generated by the vibrator inside the vibrating unit room to the auxiliary bridge. A first conical vibration damper to prevent the phenomenon,
It is characterized in that it comprises a foot attached to the interface in close contact with the body of the instrument so that vibration of the body is not transmitted to the main bridge base, there are two on each side so that there is no inclination in the front and rear and left and right directions Electric bridge for stringed instruments.

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