JP2009271484A - Performance device for string instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To create "light" which is a phenomenon for producing a great visual effect according to performance, in a string instrument. <P>SOLUTION: A sensing means for sensing contact/non-contact is constituted by making a string and a fret in an electricity conductive state, and predetermined light is generated by a performance means interlocking with the sensing means, in a performance device for the string instrument. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention particularly relates to a stringed instrument directing device suitable for use with stringed instruments such as guitars and basses.

  In general, a stringed instrument has a plurality of strings given a predetermined tension, and generates a sound by vibrating each string by an appropriate method to perform a desired performance.

  Stringed instruments are classified into plucked instruments (guitar, bass, mandolin, etc.), bowed instruments (violins, humorous, etc.), and percussion instruments (piano, etc.) depending on the method of sounding the strings.

  Among these, plucked string instruments such as guitars and basses are characterized by being able to perform complex performances with a simple structure, and are widely used as popular instruments.

  In plucked string instruments, multiple strings are stretched along the sword, and the fret (projection) to change the vibration sound is on the surface of the heel (= fingerboard), perpendicular to the string. It is arranged.

  That is, the frets are ridges fixed at a predetermined interval, and the string free vibration length from the fret to the lower piece is determined by holding the string near the fret with a fingertip, Thereby, the pitch of the sound (= frequency) is determined. For this reason, the scale set for each fret can be selected discretely.

  In the case of guitars and basses, which are typical plucked string instruments, the performer creates a desired sound by holding the string with the fingertip of his left hand near the fret in place and playing the free vibration range of the string with his finger or pick. Will be put out.

  In order to increase the vibration sound of strings, classical guitars are amplified by a swelled resonance drum. An electric guitar detects the vibration of a string with an electromagnetic pickup and electrically amplifies it, so a resonance cylinder is not required. However, for this reason, a flat cylinder similar to the resonance cylinder is provided for design reasons.

  Note that a bowed instrument such as a violin has no frets, and therefore the pitch changes continuously according to the position of the finger holding the string.

  In recent years, sales of music media such as CDs (compact discs) and MDs (mini discs) have fallen significantly due to the spread of music digital copy technology due to advances in IT (information communication) technology. Along with this, the music industry has been strengthening the marketing of content linked with video, such as live performances and promotional videos.

  However, the conventional stringed instrument is an expression specialized only for “performance by sound”, and “performance with visual effects” could not be expected.

  The problem to be solved by the present invention is to provide means capable of producing a performance with elements other than sound, particularly means capable of producing a performance with "light" having a large visual effect.

  In order to solve the above-described problem, a stringed instrument directing device is provided, which includes a sensing unit that senses contact between a string and a fret, and a rendering unit that is linked to the sensing unit.

  The performance device for stringed instruments according to the present invention can realize performance (artistic expression) by light and sound, etc. by a sensing means for directly sensing the contact between a string and a fret and a performance means in conjunction with the sensing means. There is an effect that the visual interest can be increased.

  Embodiments in which the stringed instrument production device of the present invention is applied to a classical guitar, which is the most suitable stringed instrument, will be described below with reference to the drawings.

  In FIG. 1, a stringed instrument 100 includes six strings 101 along a sword 102 and a fret 103 made of a ridged body perpendicular to the string 101 on the surface (= fingerboard) of the sword 102. have. The frets 103 are for determining the vibration length of the string 101 and are arranged at predetermined intervals in the longitudinal direction of the flange 102.

  In addition, the strings 101 are stretched in parallel by the upper piece 104 and the lower piece 105 at regular intervals. That is, the upper piece 104 is provided in a direction perpendicular to the string 101 at the upper part of the collar 102, and is configured to support the upper end of the string 101 by pushing it up from below. Similarly, the lower piece 105 is fixed to the front surface of the resonance cylinder 107 and supports the end of the string 101 by pushing it up from below.

  Therefore, the vibration frequency when the string 101 is open is determined by the lengths of the upper piece 104 and the lower piece 105.

  Here, if the member constituting the lower piece 105 is a conductive member such as iron, all the strings 101 can be energized by energizing the lower piece 105. On the contrary, if the lower piece 105 is made of a non-conductive member such as plastic, bone, or ivory, in order to energize each string 101, the individual strings are electrically connected.

In this embodiment, it is assumed that all six strings 101 are composed of conductive members.
That is, the string 101 is made of a thin metal wire or a wound string in which a bundle of nylon threads is coil-coated with a metal wire, and is configured to be energized.

  In general, the strings of classic guitars are often made of non-conductive nylon on the high-pitched side, and only the three on the low-pitched side are conductive members. The production device of the present invention can be applied to a sex string.

  The frets 103 are made of metal and are conductive. Further, since the ridge 102 is made of non-conductive wood, the frets 103 are insulated from each other.

  Reference numeral 106 denotes a spool. The spool 106 is arranged on the upper side of the upper piece 104 so that the tension can be adjusted by winding up the upper end of each string 101.

  Next, the rendering means 10 and the sensing means 20 will be described in detail.

  In FIG. 1 and FIG. 2, 10 is a production means. The rendering means 10 includes a casing 10a that can be attached to the surface of the resonance cylinder 107 and energization cords 11 and 12, and a light emitting means L is provided on the surface of the casing 10a. The light emitting means L is a light emitting electronic component such as a small light bulb or a light emitting diode. In this embodiment, a light emitting diode that is small in size, high in luminance, and excellent in luminous efficiency is used. Further, the power source for driving the light emitting means L is a button battery, a lightweight small battery such as AA, AA, AA, etc., and is built in the housing 10a.

  The light emitting means L may be provided with only one white light emitting diode, or a plurality of light emitting diodes may be arranged in an appropriate shape. In the embodiment of FIG. 1, an example is shown in which three light emitting diodes L are arranged in a straight line. However, more light sources may be used, for example, a decorative arrangement on the periphery of the resonance cylinder 107. In addition, colored light emitting diodes such as red, yellow, blue, and green may be appropriately combined and arranged in a decorative manner. Further, an appropriate blinking circuit may be incorporated in the housing 10a so that an effect such as lighting in order of red → yellow → green can be performed at an appropriate time difference.

  The production means 10 is provided with an energization cord 12 at one terminal and is energized and connected to the string 101 via a lower piece 105. The other terminal is provided with an energization cord 11 and is energized and connected to the fret 103.

  The fret 103 connected to the energization cord 11 and the string 101 connected to the energization cord 12 constitute a sensing means 20. That is, the voltage applied to the string 101 via the energizing cord 12 is conducted to the energizing cord 11 side when the string 101 and the fret 103 are in contact with each other, and the rendering means 10 can be operated. That is, the string 101 and the fret 103 are a switch mechanism that turns on and off a closed circuit that causes the rendering means 10 to conduct according to mutual contact / non-contact.

  Here, the components of the sensing means 10 and the rendering means 20 are a simple integrated unit including the energization cords 11 and 12 in the housing 10a, and can be easily attached to the main body of the stringed instrument 100. Yes. Therefore, the present device can be configured by attaching this unit to an existing stringed instrument without special processing of the stringed instrument body.

  Such a configuration can be represented by an equivalent circuit as shown in FIG. In this circuit, when the string 101 is pressed and contacts the fret 103, the string 101, the fret 103, the chord 11, the rendering means 10, and the chord 12 are conducted in this order. At this time, the light emitting means L of the effect means 10 is driven.

  Needless to say, the light emitting means 11 may be composed of a high-power solid-state laser or gas laser. In this case, the power source is constituted by a high output external power source.

  Note that the connection destination of the energization cord 11 may be only one fret or a plurality of frets 103 that are frequently used. In this case, only when a specific fret is touched, the rendering means 20 is activated and the light emitting means L emits light. Of course, the cords 11 may be connected to all the frets 103.

In order to prevent the performance from getting in the way, the energization cord 11 may be embedded in the bag 102 and connected to the fret 103.
Similarly, the energization cord 12 may be embedded in the surface of the trunk 107 and connected to the lower piece 105 or the string 101.

  Next, a development of the stringed instrument production device of the present invention will be described.

  FIG. 4 is a principle diagram of wiring showing an embodiment of an expanded form corresponding to the frets.

  In the embodiment of FIG. 1, since all the strings 101 are energized simultaneously by energizing the conductive lower piece 105, any one of the frets 103 in which at least one of the 6 strings 101 is energized. If it touches one, the production | presentation means 10 will operate | move.

  However, when the performer changes the pressing position of the fret 103, if the light only blinks regardless of the fret position, the effect is monotonous. Therefore, the configuration in which “the light changes depending on the position of the pressed fret” is the embodiment shown in FIG. In this embodiment, the color and luminous intensity of the light emitting diode are changed according to the position of the fret.

  Further, it is possible to adopt a configuration in which the light emitted from the light source L approaches blue as the position where the string 101 is pressed approaches the lower piece 105 and becomes red as it moves away. For example, if the 1st fret is red, the 2nd fret is orange, the 3rd fret is yellow, and so on, the effect that should be called “color melody” is created separately from the sound melody. Can do.

  Furthermore, you may comprise so that different brightness may be set for every fret to suppress. For example, a deeper performance can be realized by applying a circuit configuration in which the bass side is dark and the high temperature side is bright.

  Next, the “configuration in which light changes depending on the type of string to be pressed” will be described.

  FIG. 5 is a principle diagram of wiring showing an embodiment of the developed type corresponding to the string.

  In the embodiment of FIG. 1, all the strings 101 are energized in common by connecting to the conductive lower piece 105, but the lower piece 105 is made of a non-conductive material, and each string 101 is one by one. If different power cords are connected to each other, light can be emitted in different colors for each string. That is, for example, if the first string is red, the second string is orange, the third string is yellow, and so on, the effect that should be called a “color melody” is obtained separately from the sound melody. Can be brewed.

  Next, an embodiment in which the production means includes signal transmission means will be described.

  In FIG. 6, 30 is a signal transmission means. The transmission means 30 is a circuit for transmitting a signal related to the contact state between the string 101 and the fret 105 to the outside, and can be operated in conjunction with the rendering means 10. By means of the signal transmission means 30, it is possible to drive a concert production device such as a high-power laser or a high-power sound device in complete synchronization with the stringed instrument performance.

  That is, in the performances so far, the high-power lasers installed on the stage, wall surface, ceiling, etc. of the performance venue could not be directly synchronized with the performance, whereas the string instrument effect device of the present invention and the signal According to the transmission means 30, it is possible to emit light in synchronization with the performance in real time.

  The signal transmission means 30 may be either a wired cable system or a wireless transmission system, but a wireless transmission system is desirable so as not to hinder the performer's freedom of activities.

With the stringed musical instrument production device of the present invention, it is possible to realize a guitar or bass having a function of emitting light in direct cooperation with the performance, and it can be used for the promotion of the music industry by developing a new market for musical instruments.
Moreover, it is possible to realize a stage device that emits laser light or emits an accent sound directly in conjunction with the performance of a stringed musical instrument, and can be used to promote the music industry by doubling the interest of live performance.

    It is a whole perspective view which shows the production | presentation apparatus for stringed instruments of this invention.     It is a principle block diagram of the detection means and the production | presentation means which detect the contact of a string and a fret.     It is a circuit diagram which shows the relationship between a sensing means, an effect means, and a light emission means.     It is a principle figure of the Example accompanied by light emission different for every fret.     It is a principle figure of the Example in which light emission differs for every string.     It is a circuit diagram of the Example provided with the signal transmission means.

Explanation of symbols

100 string instrument 101 string 102 Sao
103 fret 104 upper frame 105 lower frame 10 effect unit 10a case 11 energization cord 12 energization code 20 sensing unit 30 signal transmission unit L light emission unit (light source)

Claims (5)

  An effect device for a stringed instrument, comprising: sensing means for sensing a contact between a string and a fret; and an effecting means linked to the sensing means.   2. The string instrument production device according to claim 1, wherein the sensing unit is a circuit capable of switching the production unit by energizing contact between a string and a fret.   3. The stringed instrument effect device according to claim 1, wherein the effect means includes a light emitting means.   The string instrument production device according to claim 1, 2, or 3, wherein the sensing unit and the production unit are configured as a unit that can be easily mounted on a stringed instrument body.   5. The stringed instrument effect device according to claim 1, 2, 3, 4, wherein the effect means is provided with a signal transmission means.

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