JP2004212853A - Electronic musical instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic musical instrument which is reduced in cost and has good operability as an electronic musical instrument simulating a stringed instrument such as a guitar and a harp. <P>SOLUTION: The string input part of a guitar type electronic musical instrument is improved. On a base 1, six dummy strings 2 are supported by separation members 11A and 11B. Axial ends 31 and 31 of the dummy strings 2 are fixed by the separation members 11A and 11B via elastic members 111 and 111. Guide members 12A and 12B are arranged inside the separation members 11A and 11B. Ranges of elastic displacement of the dummy strings 2 are prescribed by through holes 121 and 12a. On a substrate 1, a sensor part 3 is arranged. Six contact rubber parts 32a are formed on a movable sheet 32 in the string array direction and the dummy strings 2 are fitted to their columnar movable parts 32c. A movable contact 32e is formed at the lower ends of the movable parts 32c and fixed contacts 34 are formed on a printed board 31. The movable contact 32e and fixed contacts 34 come into contact with each other to detect vibration of the dummy strings 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic musical instrument capable of detecting an elastic displacement of a plurality of elastic rod-shaped members corresponding to strings of a stringed instrument such as a guitar, a ukulele, a bass guitar, a contrabass, a harp, etc., and generating a musical tone when the displacement is detected. .
[0002]
[Prior art]
Conventionally, there is an electronic stringed musical instrument disclosed in, for example, JP-A-2002-196752. This electronic stringed musical instrument is a guitar-type electronic musical instrument, in which a pitch is specified by depressing a fingerboard operator of a neck portion (a rod portion), and a tone is generated by a plucking operation of a string input portion as a trigger. Is what you do. Then, in response to the plucking operation of the pseudo string at the string input unit, a musical sound with a touch feeling from weak to strong repulsion can be generated.
[0003]
The pseudo-string of the string input section of this conventional electronic stringed musical instrument has a U-shaped arch shape in which both ends of the wire are bent at substantially right angles (in a direction perpendicular to the body surface), and the legs at both ends are bent. It penetrates into the body and can swing about the center of the foot. An elastic member is in contact with the foot portion, and the pseudo member is urged by the elastic member so as to stand upright at a right angle to the body when the string is not plucked. The vibration of the pseudo string is transmitted to the elastic member by playing the pseudo string, and the vibration of the pseudo string is detected by a sensor such as a piezo element attached to the elastic member. A musical tone is generated according to the detected vibration.
[0004]
[Patent Document 1]
JP-A-2002-196752
[Problems to be solved by the invention]
However, the above-mentioned conventional electronic musical instrument requires a member for swingably supporting the pseudo-string, an elastic member for giving a restoring force to the swing of the end of the pseudo-string, a piezo element, and other various components for assembling these elements. However, there is a problem that the number of parts increases and the cost increases. Further, since a sensor such as a piezo element is used, there is a problem that the cost is increased. In addition, the pseudo string only swings mainly due to the plucking of the pseudo string, so that there is a problem that the movement of the actual guitar cannot be performed and the performance is hindered. For example, when playing a guitar, the strings may be displaced (vibrated) to the body side, but such movements are difficult with the above-described conventional pseudo strings, and when plucking a plurality of strings sequentially, the plucking fails. Strings that are not pronounced sometimes appear.
[0006]
Also, in order to reduce costs, six rectangular plastic plates corresponding to the respective strings are arranged at right angles to the body surface, and the plastic plate is disposed on both ends of the plastic plate at both ends in the direction in which the strings are arranged. It is also conceivable to detect the swing of the plastic plate with a contact switch or the like. However, also in this case, the movement like a string of an actual guitar cannot be performed, and there is a problem similar to the above.
[0007]
SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic musical instrument simulating a stringed musical instrument, which can reduce costs and has good operability.
[0008]
[Means for Solving the Problems]
The electronic musical instrument according to claim 1 includes a fixed sensing means on the base side, and a rubber-like elastic member having a movable sensing means capable of contacting or approaching the fixed sensing means in opposition to the fixed sensing means. A plurality of supported elastic rod-shaped members are provided through the movable portions of the corresponding rubber-like elastic members, and when the elastic rod-shaped member is displaced by a finger or the like, the fixed sensing means and the movable sensing means come into contact with or approach each other. , The displacement of the elastic rod-shaped member is detected. Thus, since it is sufficient to detect the contact or approach between the fixed sensing means and the movable sensing means, a simple low-cost switch can be used as the sensor unit. Further, the structure is simplified and the cost is reduced by the configuration of supporting the elastic rod-shaped members and the configuration of merely penetrating each of the elastic rod-shaped members through the corresponding movable portion of the rubber elastic member. Furthermore, the operability is improved because the elastic rod-shaped member vibrates like a string. Note that “vibration” includes one or more swings.
[0009]
In the electronic musical instrument according to the second aspect, the range of elastic displacement of the elastic rod-shaped member is further defined by the stopper mechanism in the configuration of the first aspect. Damage such as excessive deformation and the like of the rod-shaped member can be prevented.
[0010]
According to the electronic musical instrument of the third aspect, the shaft end of the elastic rod-shaped member is further supported by the elastic member in the configuration of the first aspect. In addition to the vibration of the central portion of the above, vibration is possible also at this shaft end, the radius of curvature of the elastic rod-shaped member at the time of deformation becomes large, and it becomes close to the vibration of an actual string.
[0011]
In the electronic musical instrument according to the present invention, a plurality of elastic rod-shaped members and a displacement detecting means for detecting an elastic displacement of the elastic rod-shaped members constitute timing designating means for controlling sounding timing, and the displacement detecting means is a fixed sensing means. And a rubber-like elastic member having a movable sensing means which comes into contact with or approaches the fixed sensing by interlocking with the displacement of the elastic rod-shaped member provided opposite to the fixed sensing means. When the fixed sensing means and the movable sensing means are displaced, the distance is determined by detecting a rapid separation from the approach between the two. Accordingly, the same operation and effect as those of the first aspect are obtained, and the moment when the elastic bar-shaped member is plucked (the moment when the finger or the like is released) is not set as the sounding timing even when the pressing force is applied to the elastic bar-shaped member. The sound can be generated at the timing of sound generation, and musical sounds can be generated at timings like those of a stringed instrument.
[0012]
The electronic musical instrument according to claim 5, further comprising: a displacement detecting means for detecting an elastic displacement of the elastic rod-shaped member; and a guide means for guiding the elastic rod-shaped member so as to easily detect the elastic displacement of the elastic rod-shaped member. In order to detect the displacement of the elastic rod-shaped member by the contact or approach of the movable sensing means with the movable sensing means, the guide means induces a movement which facilitates sensing when the elastic rod-shaped member is displaced. Thereby, the cost is reduced by the same structure as that of the first aspect, the operability is improved by vibrating the elastic rod-like member like a string, and the sensing of the displacement detecting means is further improved.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 7 is an external view of the electronic musical instrument according to the embodiment of the present invention. This electronic musical instrument is a guitar-type electronic musical instrument, and the outline of the external shape and the like is the same as that of JP-A-2002-196752. A string input unit 110 is provided at the center of the body 100. The neck 120 is provided with first to twelfth frets 130 in order from the head part 120a side at the tip, and between the head part 120a and the first fret 130 and the other adjacent frets 130, 130. A plurality of fret operation sections 10 corresponding to the respective pseudo strings are provided between the fret strings. The fret operating section 10 in this embodiment corresponds to “pitch specifying means” in claim 4, and the string input section 110 corresponds to “timing specifying means” in claim 4. A setting switch 140 and a display unit 150 are provided on the body 100 side of the neck 120.
[0014]
Each fret operating section 10 has 12 steps in the string longitudinal direction (the direction of arrow {circle around (1)} in FIG. 7) corresponding to the first to twelfth frets 130, and the string arrangement direction (corresponding to each of the six pseudo strings). There are a plurality of fret sensors arranged in six stages in the direction of arrow (2) in FIG. 7), and a total of 72 fret operation units 10 are arranged on the neck 120 in a matrix. Each fret operating unit 10 is assigned the same key code as the pitch at the time of pressing each fret position of each string on the guitar corresponding to the intersection of the fret operating unit 10 with a certain string arrangement direction and the longitudinal direction of the strings. Have been. The fret operation unit 10 may detect aftertouch or the like, but at least the pitch can be specified.
[0015]
(First Embodiment of String Input Unit)
FIG. 1 is a perspective view and a partial sectional view of a first embodiment of a string input unit. FIG. 1B is a sectional view taken along the line AA of FIG. At both ends of the rectangular base 1, rectangular separating members 11A and 11B that are long in the direction in which the strings are arranged are erected, and the pseudo members 2 that are elastic rod members are formed by the separating members 11A and 11B. It is supported in the chord direction at a distance from the surface of the base 1. It should be noted that only one set of symbols corresponding to one pseudo string is added to the symbols in the figure. Shaft ends 21 and 21 of the pseudo string 2 pass through elastic members 111 and 111 which are fixed in through holes formed in the separation members 11A and 11B, and the shaft end 21 is fixed to the elastic members 111 and 111. , And an elastic member that is supported by an elastic member.
[0016]
Guide members 12A and 12B are respectively arranged inside the separation members 11A and 11B at a predetermined distance from the separation members 11A and 11B. Six through holes 121, 121 are formed in the guide members 12A, 12B, respectively, and the pseudo string 2 is arranged to pass through the through holes 121, 121 in the guide members 12A, 12B. The pseudo string 2 is arranged so as not to contact the inner periphery of the through holes 121, 121. When the pseudo string 2 is greatly plucked, the range of elastic displacement of the pseudo string 2 is limited to the through hole. The guide members 12 </ b> A, 12 </ b> B and the through holes 121, 121 define a stopper mechanism.
[0017]
The sensor unit 3 is disposed on the substrate 1 between the one separating member 11A and the guide member 12A. The sensor section 3 includes a printed board 31 disposed on the board 1, a movable sheet 32 made of rubber as a rubber-like elastic member, and a pressing member 33 that covers the printed board 31 and the movable sheet 32 and is fixed to the board 1. have. In addition, 331 to 333 are screw holes for fixing the holding member 33.
[0018]
The movable seat 32 has six contact rubber portions 32a corresponding to the respective pseudo strings 2 provided in the string arrangement direction in a rectangular sheet portion in the string arrangement direction. As shown in FIG. 1B, the contact rubber portion 32a has a dome-shaped skirt portion 32b protruding from the sheet portion, and a columnar movable portion 32c formed on the skirt portion 32b. ing. On the printed circuit board 1 in the skirt portion 32b, a fixed contact 34 in which an E-shaped contact pair is arranged as fixed sensing means is formed. The lower part of the movable part 32c has a protruding part 32d in the skirt part 32b, and the lower end thereof is formed with a movable contact 32e made of a carbon conductor layer as a movable sensing means. The movable contact 32e has a spherical shape protruding downward, and short-circuits the above-mentioned E-shaped contact pair to turn on when pressed. Further, the pseudo string 2 is penetrated through the upper part of the movable part 32c.
[0019]
When the string input section 110 is attached to the body 100, the space between the separation member 11A and the guide member 12A and the space between the separation member 11B and the guide member 12B are covered with a front case or the like. Numeral 2 is exposed to the front only between the guide members 12A and 12B.
[0020]
With the above configuration, when the pseudo string 2 is plucked between the guide members 12A and 12B, the vibration (elastic displacement) of the pseudo string 2 causes the movable portion 32c to vibrate, and the movable contact 32e formed at the lower end thereof. Repeats contact / non-contact with the fixed contact 34. When the movable contact 32e comes into contact with the fixed contact 34, the switch is turned on, and the vibration (elastic displacement) of the pseudo string 2 is detected by turning on / off the switch.
[0021]
FIG. 1C shows another embodiment of the sensor unit 3. The movable portion 32c of this embodiment has two tapered surfaces in which the lower ends of the protruding portions 32d formed in the skirt portion 32b are arranged in a chord arrangement direction, and the movable contacts 32f formed of a carbon conductor layer are formed on the tapered surfaces. , 32f are formed. On the printed circuit board 31, fixed contacts 35, 35 facing these movable contacts 32f, 32f, respectively, are formed. As a result, due to the vibration (oscillation) of the movable portion 32g in the string arrangement direction, each of the fixed contact types 35, 35 operates to turn on one and turn off the other, thereby vibrating the pseudo string 2 (elastic displacement). ) Is detected. Note that the sensor unit 3 corresponds to a displacement detection unit.
[0022]
FIG. 2 is a view for explaining the action of the bending of the pseudo string 2 in the embodiment. Since the pseudo string 2 is exposed only between the guide members 12A and 12B, the player recognizes the space between the guide members 12A and 12B as a pluck operation section. Here, if both ends of the portion recognized as the plucking operation portion are fixed ends of the pseudo string as shown in FIG. 2 (A), the bending of the pseudo string becomes local, In the example, as shown in FIG. 2B, there is a fixed end (separating members 11A and 11B) outside the guide members 12A and 12B recognized as a plucking operation section. Since the bending portion of the pseudo string is not localized, the bending of the pseudo string 2 is restricted by the through holes 121 of the guide members 12A and 12B, so that the feel of a real guitar can be obtained. it can.
[0023]
(Second Embodiment of String Input Unit)
FIG. 3 is a perspective view and an operational view of a second embodiment of the string input unit 110. A sensor part 4 is provided at one end of the rectangular base 1, and the sensor part 4 includes a contact rubber part 41 provided in the string arrangement direction corresponding to the six pseudo strings 5. . The contact rubber portion 41 has a skirt portion 41a and a columnar movable portion 41b formed on the skirt portion 41a. A pseudo string 5 having one end bent at a right angle is attached to the upper end of the movable portion 41b. The other end of the pseudo string 5 has a separating member (not shown) and an elastic member (not shown) on the base 1 as in the first embodiment. It is supported by a member. Thereby, the pseudo string 5 is disposed apart from the base 1. In the second embodiment, the sensor unit 4 corresponds to one of the separating members.
[0024]
A first guide member 13 and a second guide member 14 are disposed on the base 1. The first and second guide members 13 and 14 correspond to “guide means” in claim 5. The first guide member 13 has six vertically long rounded triangular through holes 13a, and the second guide member 14 has six vertically long through holes 14a. Each of the six pseudo strings 5 is disposed so as to pass through the through holes 13a and 14a. The detailed configuration of the inside of the sensor section 4 is the same as that of the sensor section 3 of the first embodiment, and the vibration (elastic displacement) of the pseudo string 5 causes the movable section 41b to vibrate. The formed movable contact repeats contact / non-contact with the fixed contact, and the vibration (elastic displacement) of the pseudo string 5 is detected as described above. In addition, the through hole 14a may have the same triangular window shape as 13a.
[0025]
With the above configuration, when the pseudo string 5 is plucked between the first guide member 13 and the second guide member 14, the pseudo string 5 can vibrate as shown in FIG. 3B. That is, the pseudo string 5 can perform oblique vibration such that vibration in the direction perpendicular to the surface of the base 1 and vibration in the parallel direction are combined. This is a vibration that corresponds to the case where the guitar string is plucked from the low string to the high string side by holding it against the body when plucking the string, or the case where the string is plucked from the high string to the low string side. . As a result, it is possible to obtain a feeling like a string of an actual guitar. Further, the pattern of the vibration is regulated to be a predetermined pattern to some extent. That is, the pseudo string 5 (elastic rod-shaped member) is induced to move so that it can be easily sensed when it is displaced. Thereby, the sensing of the sensor unit 4 is improved.
[0026]
FIG. 4 is a block diagram of a signal processing circuit for generating a musical tone corresponding to the string input section 110 of the first embodiment or the second embodiment. The pitch switch section 210 is composed of the entire fret operation section 10 and, of the operated fret operation sections 10, preferentially outputs the key code on the high position side (the highest pitch) for each string. Are input to the microcomputer 220. Further, a detection signal (trigger signal) for each string from the string input unit 110 (the sensor unit 3 or the sensor unit 4) is input to the microcomputer 220. The string input unit 110 includes a switch SW for each string corresponding to the movable contact 32e and the fixed contact 34 in the sensor unit 3. A predetermined voltage (TTL level) V is applied to each switch SW, and the voltage via this switch SW is input to the inverting input terminal (“C bar”) of the retrigable monostable multivibrator (RMM) 230. The RMM 230 starts outputting a high level when the output of the switch SW falls from a high level to a low level, and holds that level. The rising timing of the output of the RMM 230 specifies the tone generation timing, and a period during this high level is a gate time (sound generation duration). Note that the output of the RMM 230 is reset due to, for example, attenuation of the vibration of the pseudo string.
[0027]
As a result, the sound is started when the sensor unit 3 is turned off for the first time (separation of the movable contact 32e from the fixed contact 34). That is, simply turning on the switch SW by pressing the pseudo string 2 with a finger, a pick, or the like does not result in sounding timing, and the switch SW is turned off after the time when the pseudo string 2 is plucked. It is the first time to sound. As described above, the sounding timing is determined by detecting the rapid separation from the approach of both the fixed sensing means (fixed contact 34) and the movable sensing means (movable contact 32e). As a result, it is possible to simulate the coincidence between the plucking timing of the guitar or the like and the sounding timing.
[0028]
FIG. 5 is a diagram showing another embodiment and a circuit of the sensor unit, and shows one pseudo string. The sensor section 6 has two photocouplers 62 and 63 provided on a printed board 61, and a vibration rubber section 64 corresponding to the contact rubber section 41 is provided on the photocouplers 62 and 63. The vibrating rubber portion 64 has a skirt portion 641 and a movable portion 642. The movable portion 642 has two tapered surfaces whose lower ends are arranged in the chord arrangement direction in the skirt portion 641, and each of the tapered surfaces has a reflecting surface. 643, 644 are formed. The pseudo string 2 is attached near the upper end of the vibrating rubber portion 64 so as to penetrate in a direction perpendicular to the drawing.
[0029]
The photocouplers 62 and 63 are arranged side by side in the chordwise direction similarly to the reflection surfaces 643 and 644. Each of the photocouplers 62 and 63 has a light emitting unit (light emitting diode) and a light receiving unit (phototransistor). The switch is turned on when the reflected light of the light from the light receiving section is received by the light receiving section. When the pseudo string 2 is plucked, the vibrating rubber portion 64 vibrates (oscillates) as shown by the arrow in the figure. The vibration of the vibration rubber portion 64 causes the reflection surfaces 643 and 644 to vibrate, and the photocouplers 62 and 63 are turned on / off alternately. That is, when the photocoupler 62 receives the light reflected by the reflection surface 643, the photocoupler 63 does not receive the light reflected by the reflection surface 644, and the photocoupler 63 receives the light reflected by the reflection surface 644. When receiving light, the photocoupler 62 is configured not to receive light reflected by the reflection surface 643. The photocouplers 62 and 63 are configured so as not to be turned on at the same time. In this example, the reflecting surfaces 643 and 644 are formed by being divided into left and right. However, the reflecting surfaces 643 and 644 may be configured to be continuous, and in this case, the movable portion 642 is pushed right below. The reliability in detecting the ON signal in the case where the power is turned on is increased.
[0030]
As shown in FIG. 5B, the outputs of the photocouplers 62 and 63 are added and input to the waveform shaping circuit 310, and the rectangular wave shaped by the waveform shaping circuit 310 is retriggered monostable multivibrator. (RMM) 320 is input to the inverting input terminal (“C bar”). The RMM 320 operates in the same manner as the RMM 230 of the above embodiment. Then, a rectangular wave is output from the photocouplers 62 and 63 and the waveform shaping circuit 310 due to the pluck of the pseudo string 2, and the RMM 320 outputs a high-level output when the rectangular wave falls from a high level to a low level. Start and hold that level. The rising timing of the output of the RMM 320 specifies the sound generation timing. That is, in the same manner as described above, the sounding timing is determined by detecting the rapid separation from the approach of both the fixed sensing means (photocouplers 62 and 63) and the movable sensing means (reflection surfaces 643 and 644), and the plucking of a guitar or the like. The coincidence between the timing and the sounding timing can be simulated well.
[0031]
In FIGS. 1A and 1B, the pseudo string 2 is attached to the movable portion 32c as a structure for penetrating the pseudo string 2 simply by piercing the movable portion 32c. On the other hand, as in the embodiment of FIGS. 1 (C) and 5 (A), a slit sl is formed from the upper end of the movable portion 32g, 642, and a through hole having a thickness of the pseudo string is provided at the pseudo string mounting position. h may be formed, and the pseudo string 2 may be inserted into the through hole h. Thereby, since the pseudo string 2 may be inserted from the slit sl, the assembling work is also facilitated, and the cost can be further reduced. Further, when the slit sl is provided in this manner, for example, as shown in FIG. 6, when the upper portion of the movable portion is formed in a columnar shape parallel to the pseudo string, the flexibility of the movable portion due to the slit sl is also suppressed. And can be securely held. Note that the slit sl and the through hole h can be formed by die shaping by forcible removal.
[0032]
In the above embodiment, the elastic member 111 is provided at a portion where the pseudo string is fixed to the separating member. However, the elastic member 111 is eliminated, and the pseudo string is directly fixed to the separating member. Is also good. If the elastic member 111 is eliminated or made more rigid, the pseudo string 2 vibrates more. In any case, the movable portion (for example, 32c) vibrates (oscillates) in conjunction with the vibration of the pseudo-string, whereby the vibration of the pseudo-string is detected. The “vibration” of the movable part includes one or more swings.
[0033]
In the above embodiment, the guitar-type electronic musical instrument has been described. However, the present invention can also be applied to electronic musical instruments simulating other stringed instruments such as a violin, ukulele, bass guitar, contrabass, cello, and harp.
[0034]
【The invention's effect】
According to the electronic musical instrument of the present invention, a simple low-cost switch can be used as the sensor unit, the elastic bar-shaped member is supported, and each of the elastic bar-shaped members corresponds to the movable portion of the rubber elastic member. , The structure is simplified and the cost is reduced. Furthermore, the operability is improved because the elastic rod-shaped member vibrates like a string.
[0035]
According to the electronic musical instrument of the second aspect, the range of elastic displacement of the elastic rod-shaped member is defined by the stopper mechanism, so that the same effect as that of the first aspect can be obtained, and excessive deformation of the elastic rod-shaped member can be achieved. Such damage can be prevented.
[0036]
According to the electronic musical instrument of the third aspect, since the shaft end of the elastic rod-shaped member is supported by the elastic member, the same effect as that of the first aspect is obtained, and in addition to the vibration of the central portion of the elastic rod-shaped member. Vibration is also possible at the lever end, and the radius of curvature of the elastic rod-shaped member at the time of deformation becomes large, which is close to actual string vibration.
[0037]
According to the electronic musical instrument of the fourth aspect, the designated timing of musical tone generation is determined by detecting a rapid separation from the approach of both the fixed sensing means and the movable sensing means. The effect can be obtained, and the moment when the finger or the like is released can be used as the sound generation timing, so that the musical sound can be generated at a timing like a string instrument.
[0038]
According to the electronic musical instrument of the fifth aspect, since the guide means induces a movement which is easy to sense when the elastic rod-shaped member is displaced, the cost can be reduced by the same structure as in the first aspect, and the elastic rod-shaped member can be reduced. Since the member vibrates like a string, the operability is improved, and the sensing of the displacement detecting means is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view and a partial cross-sectional view of a first example of a string input unit according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining the action of bending of a pseudo string in the first embodiment.
FIG. 3 is a perspective view and an operation diagram of a second example of the string input unit in the embodiment of the present invention.
FIG. 4 is a block diagram of a signal processing circuit for generating a musical tone corresponding to a string input unit according to the embodiment of the present invention.
FIG. 5 is a diagram showing another example and a circuit of the sensor unit according to the embodiment of the present invention.
FIG. 6 is a diagram showing another example of the movable section in the embodiment of the present invention.
FIG. 7 is an external view of the electronic musical instrument according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base, 2, 5 ... Pseudo string (elastic rod-shaped member), 10 ... Fret operation part (pitch designation | designated means), 11A, 11B ... Separation member, 12A, 12B ... Guide member, 13 ... 1st guide member ( Guide means), 110 string input section (timing designating means), 111 elastic member, 121 through hole, 32 movable sheet, 34, 35 fixed contacts (fixed sensing means), 32e, 32f movable contacts (movable) Sensing means)

Claims (5)

A base, and a plurality of elastic rod-shaped members provided on the base and separated from the surface thereof by a separating member, and detecting the elastic displacement of the elastic rod-shaped members to generate a tone when the displacement is detected. In an electronic musical instrument that can be generated,
A fixed sensing means fixedly provided with respect to the base; and a rubber-like elastic member provided opposite to the fixed sensing means and having a movable sensing means which comes into contact with or approaches the fixed sensing means during the elastic displacement. And the elastic rod-shaped member is provided through the movable portion of the rubber-like elastic member,
When the elastic rod-shaped member is displaced by a finger or the like, the displacement of the elastic rod-shaped member is detected by contact or approach between the fixed sensing means and the movable sensing means of the rubber-like elastic member. Electronic musical instrument. 2. The electronic musical instrument according to claim 1, further comprising: a stopper mechanism for defining a range of elastic displacement of the elastic rod member around the elastic rod member. 2. The electronic musical instrument according to claim 1, further comprising an elastic shaft supporting mechanism for supporting the shaft end of the elastic rod-shaped member with an elastic member. Pitch designation means for designating a pitch on the fingerboard, timing designation means for controlling sounding timing provided on a support other than the fingerboard, and operation of the pitch designation means and timing designation means An electronic musical instrument having a musical sound generating means for generating a musical sound at
The timing specifying means has a plurality of elastic rod-shaped members provided on a base and separated from the surface by a separating member, and a displacement detecting means for detecting an elastic displacement of the elastic rod-shaped members,
The displacement detecting means is a fixed sensing means fixedly provided with respect to the base, and fixed sensing by interlocking with the elastic rod-shaped member when the elastic rod-shaped member is provided opposed to the fixed sensing means. A rubber-like elastic member having a movable sensing means to contact or approach,
An electronic musical instrument according to claim 1, wherein the timing specified by said timing specifying means is a time when said fixed sensing means and said movable sensing means are displaced, and is detected by detecting a rapid separation from the approach of both. A base, and a plurality of elastic rod-shaped members provided on the base and separated from the surface thereof by a separating member, and detecting the elastic displacement of the elastic rod-shaped members to generate a tone when the displacement is detected. In an electronic musical instrument that can be generated,
Displacement detection means for detecting the elastic displacement of the elastic rod-shaped member,
Guide means for guiding the elastic rod-shaped member so as to easily detect the elastic displacement of the elastic rod-shaped member,
Has,
The displacement detecting means is a fixed sensing means fixedly provided with respect to the base, and fixed sensing by interlocking with the elastic rod-shaped member when the elastic rod-shaped member is provided opposed to the fixed sensing means. A rubber-like elastic member having a movable sensing means to contact or approach,
The fixed sensing means and the movable sensing means of the rubber-like elastic member contact or approach to detect the displacement of the elastic rod-shaped member, and the guide means senses when the elastic rod-shaped member is displaced. An electronic musical instrument configured to induce easy movement.

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