JP5288552B2 - Tuning device - Google Patents

Description

  The present invention relates to a tuning device used at the time of music performance (before performance start) or at the time of practice.

  2. Description of the Related Art Conventionally, a tuning device is known that is used when playing music or practicing and that tunes on the basis of pitch information by inputting an arbitrary sound.

  This tuning device is directly attached to a musical instrument and displays the tuning state of the sound generated from the musical instrument on the display unit of the tuning device main body. The conventional tuning device is efficient for the sound emitted from the musical instrument to be tuned. It was necessary to install it while searching for a well-detected place. When the tuning target is a brass instrument, the sounding side near the bell is the position where the most efficient sound collection is possible, but if the tuning device is installed at this position, the display surface of the tuning device main body will be hidden by the bell there were. In order to solve such a problem, a rotatable joint is provided between the clip portion that holds the vicinity of the sound generating portion of the instrument and the tuning device main body having a display surface that displays the tuning result, and the display surface Has been proposed (see Patent Document 1, for example).

However, in the tuning device of Patent Document 1, although the clip portion and the tuning device main body are connected by a bendable joint, the orientation of the display portion of the tuning device main body cannot be freely changed. Depending on the position of the instrument attached to the instrument, the display unit is inverted.
In this way, when the display unit is reversed, particularly in the case of cent display, the pitch of the sound is displayed in the reverse direction, so it is difficult to recognize whether the sound generated from the instrument is higher or lower than the reference sound.

  In order to improve this, there has been proposed a tuning device capable of switching the height of the cent display on the display unit between the normal display mode and the mirror display mode (see, for example, Patent Document 2). That is, in this tuning device, in the normal display mode, the cent display in which the left side is low cent and the right side is high cent is set so that the left side becomes high cent and the right side becomes low cent by pressing the reverse button. Replace. Thus, even if the display unit is turned upside down, the player can recognize the tuning state without a sense of incongruity.

JP 2003-255932 A US Pat. No. 7,049,502

  By the way, the tuning device described in Patent Document 2 makes it possible to recognize the height of the cent display without a sense of incongruity only when the display unit is turned upside down. For example, when the display unit is arranged vertically or diagonally, It is difficult to recognize the height of the cent display. In particular, depending on the shape and mounting position of the instrument, it may be difficult to arrange the cent display on the display unit along the horizontal direction. This prevents the cent display from being uncomfortable and smoothing the tuning. It was.

  The present invention has been made in view of such a problem, and provides a tuning device that allows a player to recognize a tuning state without a sense of incongruity regardless of the mounting position on a musical instrument or the orientation of a display unit. With the goal.

In view of the above problems, the present invention proposes the following means.
That is, the tuning device according to the present invention measures the deviation between the fundamental frequency of the sound of the musical instrument and the reference frequency to be compared, and displays the deviation as a cent display. An annular display unit disposed on the light emitting body, wherein one of the light emitters is set as a tuning reference position with a deviation of 0, and a plurality of the light emitting bodies on one side of the tuning reference position is the deviation. And a vertical display means for recognizing the upper and lower sides of the annular display section, wherein the plurality of light emitters on the other side of the tuning reference position are set to a high display area where the deviation is +. And when the upper and lower sides of the annular display portion are changed, the illuminant which is the tuning reference position is changed based on the output of the upper and lower recognition means, and the positional relationship on the circumference with respect to the vertical direction is predetermined. The one illuminant that becomes the position is Is a law reference position, wherein when the top and bottom of the annular display unit is changed, based on an output of said upper and lower recognition means, that the light emitters becomes newly the predetermined position is with the rhythm reference position It is said.

According to the tuning device having such a feature, when the top and bottom of the annular display section changes, the top and bottom recognition means recognizes the top and bottom, and the illuminant that serves as the tuning reference position changes based on this output. Even if the vertical direction of the player changes, the performer can recognize the tuning state without a sense of incongruity.
Regardless of the upper and lower sides of the annular display portion, the light emitter whose circumferential positional relationship with respect to the vertical direction is a predetermined position is always the tuning reference position, and the low display area and the high display area are provided on both sides of the tuning reference position. Will be placed. Therefore, even when the upper and lower sides of the annular display portion are changed, the same cent display can always be displayed at the same position as viewed from the performer.

In the tuning device according to the present invention, it is preferable that the predetermined position is an uppermost position or a lowermost position in a positional relationship on the circumference with respect to the vertical direction.
Thus, the performer can easily grasp the tuning reference position, and thus the tuning state can be recognized without a sense of incongruity.

  In the tuning device according to the present invention, it is preferable that each of the light emitting bodies of the tuning reference position, the low display area, and the high display area is semi-lighted in a standby state in which no instrument sound is input. .

  As a result, the range that can be displayed by the cent display during tuning in the standby state can be shown, so that the fundamental frequency of the musical instrument can be easily recognized during tuning.

  Furthermore, in the tuning device according to the present invention, the light emitting body in the low display area and the light emitting body in the high display area emit light in different colors.

  According to the tuning device having such a feature, in addition to recognizing the fundamental frequency of a musical instrument according to the direction, such as a low display area on one side and a high display area on the other side, it is possible to recognize the height based on the difference in color. Therefore, the fundamental frequency of the musical instrument can be recognized more easily.

  Further, the tuning device according to the present invention may be such that the intensity of the light emission color of the light emitter in the low display area and the high display area changes continuously from the one side toward the other side. Good.

  According to the tuning device having such a feature, in addition to recognizing the fundamental frequency of the instrument by the direction such that the one side is a low display area and the other side is a high display area, it is possible to recognize the high and low by the shade of color. Therefore, the fundamental frequency of the musical instrument can be recognized more easily.

  Furthermore, the tuning device of the present invention is provided with a display panel that is rotatably mounted around the center axis of the annular display portion and has a mark indicating the tuning reference position, and the display panel changes the tuning reference position. It is characterized by being configured to rotate following the above.

  In the tuning device having such characteristics, the tuning reference position can be easily grasped by the mark on the display panel. Even when the tuning reference position changes with the vertical change of the annular display portion, the display panel always rotates with the mark on the display panel because the display panel rotates to follow the change. The position can be indicated.

Furthermore, the tuning device of the present invention is attached so as to be rotatable about the central axis of the annular display portion, and has a through hole at a location corresponding to each of the light emitters in the low display area and the high display area. with an empty panel, the diameter of the through hole is formed so as gradually increases toward the said other side in from the one side, the perforated panels are configured to rotate to follow the rhythm reference position It is characterized by.

  According to the tuning device having such a feature, the level of the fundamental frequency of the musical instrument can be easily recognized by the difference in the size of the through hole. In addition, even if the tuning reference position changes as the annular display changes up and down, the perforated panel rotates so as to follow the change. The frequency can be shown.

  In the tuning device according to the present invention, the vertical recognition means is a pendulum mechanism that recognizes the vertical direction by rotating the rotation shaft so that the weight is positioned at the lowest position. As a result, the weight is positioned at the lowermost position regardless of the top and bottom of the annular display portion, so that the top and bottom recognition can be reliably recognized.

  Furthermore, in the tuning device of the present invention, the vertical recognition means may be an acceleration sensor that recognizes the vertical direction by detecting the acceleration when the vertical movement changes. In this case, it is possible to recognize the vertical direction of the display surface by detecting the acceleration when the vertical direction of the annular display portion changes.

  According to the tuning device of the present invention, the same cent display can always be displayed at the same position as viewed from the performer even when the upper and lower sides of the annular display portion are changed. Regardless of the orientation of the display unit, the performer can recognize the tuning state without a sense of incongruity.

It is a side view of the tuning apparatus which concerns on embodiment. It is a side view at the time of attaching a tuning apparatus to a musical instrument with a clip part. It is a top view of the tuning apparatus which concerns on embodiment. It is a top view which shows the detail of a cyclic | annular display part. It is a top view which shows an example of an up-and-down recognition means. It is a figure explaining the change of the tuning reference | standard position of the cyclic | annular display part by an up-and-down recognition means. It is a figure explaining the change of the tuning reference | standard position of the cyclic | annular display part by an up-and-down recognition means. It is a top view of the tuning apparatus provided with the display panel. It is a figure for demonstrating the structure of a display panel. It is a top view of the tuning apparatus provided with the perforated panel. It is a figure for demonstrating the structure of a perforated panel. It is a top view of the tuning apparatus provided with the up-and-down recognition switch as an up-and-down recognition means.

Hereinafter, a tuning device as an embodiment of a music electronic device of the present invention will be described with reference to the drawings. 1 is a side view of a tuning device according to the embodiment, FIG. 2 is a side view of the tuning device attached to a musical instrument by a clip portion, and FIG. 3 is a plan view of the tuning device according to the embodiment.
As shown in FIGS. 1 to 3, the tuning device 1 includes a clip portion 10 and a tuning device main body 40.

  The clip portion 10 is disposed between the first plate member 20 and the second plate member 30 that are paired with each other, and the urging force of the hinge portion 36 that includes a torsion coil spring and a leaf spring (not shown), for example, wind instruments and guitars. The tuning device 1 is attached to the musical instrument by sandwiching the musical instrument.

  As shown in FIG. 1, the first plate member 20 has a first plate member main body 21 having a rectangular flat plate shape, and on the front end side in the longitudinal direction of the first plate member main body 21 (right side in FIG. 1), A jaw plate portion 22 is formed integrally with the first plate member main body 21 so as to extend obliquely upward from the front end. A lower pad 23 having a hemispherical shape in a longitudinal section is protruded from the upper surface of the distal end portion of the jaw plate 22.

The second plate 30 is disposed opposite to the upper side of the first plate 20, and has a shape in which the rectangular flat plate is refracted so as to protrude downward in the middle portion thereof.
A portion on the front end side of the second plate member 30 with the refracting portion 31 as a boundary is a sandwiching plate portion 32 extending in parallel with the first plate member 20. An upper pad 33 having a shape is laid.
Further, the rear end portion with the refracting portion 31 as a boundary is a relief plate portion 34 that is inclined and extends so as to escape from the first plate member 20 toward the rear end side from the refracting portion 31.

  Then, the lower surface of the distal end portion of the escape plate portion 34 and the portion of the upper surface of the first plate member 20 facing the lower surface of the distal end portion of the escape plate portion 34 are connected by a hinge portion 36.

  The hinge portion 36 has a rotation shaft 37 orthogonal to the longitudinal direction of the first plate member 20 and the second plate member 30 and parallel to the plate surfaces of the first plate member 20 and the second plate member 30, thereby The first plate member 20 and the second plate member 30 are rotated relative to each other about the rotating shaft 37 while maintaining the opposed state.

The hinge portion 36 is urged to rotate in a direction in which the first plate member 20 and the sandwiching plate portion 32 are brought close to each other by an elastic member such as a spring (not shown). As a result, the first plate member 20 and the clamping plate portion 32 of the second plate member 30 are close to each other and the clip portion 10 is closed. At this time, the tip of the second plate member 30 is the jaw plate portion of the first plate member 20. The sandwiching plate portion 32 of the second plate member 30 and the first plate member 20 are maintained in parallel with each other in contact with the upper surface of 22.
Further, when an external force is applied in a direction in which the rear end side of the relief plate portion 34 of the second plate member 30 and the rear end side of the first plate member 20 are approached, the sandwiching plate portion 32 and the upper surface of the first plate member front end portion are separated from each other. Then, the clip unit 10 is opened and the instrument can be gripped.

  A space surrounded by the upper surface of the clamping plate portion 32 and the upper surface of the escape plate portion 34 is formed above the second plate member 30 of the clip portion 10, and this space is the tuning device main body 40 of the tuning device 1. Storage space.

  As shown in FIGS. 1 and 2, the tuning device main body 40 includes a housing 41 made of a resin and having a substantially ship shape. A cent display is displayed on the entire flat surface of the housing 41. A display surface 42 is provided. Details of the display surface 42 will be described later.

A vibration sensor (not shown) is built in the housing 41 together with an electric circuit and a battery. When a musical instrument is played, vibration propagating through the air or vibration propagating through the clip unit 10 that directly contacts the musical instrument is detected by the vibration sensor, and an electric signal based on the detection of the vibration has a desired level by the amplifier circuit. It is amplified to an electrical signal and input to the pitch extraction means. This pitch extraction means is realized by a memory and a microcomputer in which a command such as “measure the period of the fundamental wave component having the longest period in the input signal” is stored. Thereby, the fundamental frequency of the sound of the musical instrument is extracted.
Subsequently, the fundamental frequency measured by the pitch extracting means and a preset reference frequency are input to the pitch error detecting means. This pitch error detecting means is realized by a memory and a microcomputer in which an instruction “calculate the deviation of the input frequency” is stored.
Then, the result is displayed on the display surface 42 in accordance with the frequency deviation deviation value calculated by the pitch error detecting means.

The housing 41 is located on the opposite side of the display surface 42 and is parallel to the display surface 42, and is inclined to the front side so as to spread from both ends in the longitudinal direction of the main back surface 43. It has a pair of inclined back surfaces 44a and 44b extending.
Of the inclined back surfaces 44a and 44b, the angle formed by one inclined back surface 44a and the main back surface 43 is formed to be the same as the angle formed by the sandwiching plate portion 32 and the escape plate portion 34 of the second plate member 30. .

In the present embodiment, the tuning device main body 40 having the above-described configuration has the display surface 42 facing upward, the main back surface 43 along the sandwiching plate portion 32 of the second plate member 30, and one inclined back surface. 44a is disposed on the second plate 30 in a stored state along the escape plate 34 of the second plate 30.
In the housed state, the upper surface of the distal end portion of the sandwiching plate portion 32 of the second plate member 30 and the other inclined back surface 44 b of the casing 41 of the tuning device main body 40 are connected and supported by the connecting member 50.

The connecting member 50 has a rotation shaft 51 that is orthogonal to the longitudinal direction of the second plate member 30 and the tuning device body 40 and is parallel to the upper surface of the second plate member 30 and the display surface 42 of the tuning device body 40. The second plate 30 and the tuning device main body 40 are configured to be relatively rotatable with the rotation shaft 51 as a fulcrum. As a result, the tuning apparatus main body 40 has a storage state in which the back surface thereof is disposed along the upper surface of the second plate member 30 as shown in FIG. 1, and the display surface 42 has the first plate member 20 and the first plate member as shown in FIG. The two plate members 30 are rotatable between the leading end side of the plate member 30, that is, the rising state facing the leading end side of the clip portion 10.
In the tuning device 1 of the present embodiment, the tuning device main body 40 can be rotated between the housed state and the raised state around the rotation shaft 51, and is orthogonal to the rotation shaft 51 and is second. It can be rotated around another rotation axis (not shown) perpendicular to the plate member 30. Thereby, the orientation of the display surface 42 can be arbitrarily changed.

When the tuning device 1 having the above-described configuration is not used, the tuning device main body 40 is normally stored, and when used, the first plate member 20 of the clip portion 10 and the sandwiching plate portion 32 serve as a musical instrument. And the tuning device main body 40 is rotated to the rising state.
Thereafter, when the musical instrument is played, the vibration frequency is detected by a vibration sensor built in the tuning device main body 40, and the deviation between the fundamental frequency of the sound of the musical instrument and the reference frequency serving as a reference for comparison is measured. Is displayed on the display surface 42 as a cent display.

  Next, the cent display on the display surface 42 will be described. 3 and 4 indicate the vertical direction A of the display surface 42, and the tuning device 1 is installed in a state where the short side direction of the display surface 42 is along the vertical direction A.

  As shown in detail in FIG. 4, the display surface 42 is provided with an annular display unit 60. The annular display unit 60 is configured by, for example, a plurality (12 in the present embodiment) of light emitters P (P1 to P12) made of LEDs arranged at equal intervals on the circumference. Each of the light emitters P is composed of, for example, a multicolor LED that can emit light in three or more different colors.

Among these illuminants P, one illuminant P1, that is, the illuminant P1 whose positional relationship on the circumference with respect to the vertical direction A of the display surface 42 is the highest position is set in advance as the fundamental frequency of the sound of the instrument. The tuning reference position N has a deviation of 0 from the reference frequency. At this tuning reference position N, the light emitter P1 emits light in the reference color that is the first color.
Further, a plurality of (four in this embodiment) light emitters P9 to P12 on the one side of the tuning reference position N, that is, the counterclockwise direction side, have a fundamental frequency of the sound of the musical instrument compared to the reference frequency. Is a low display area L with a small deviation. In the low display area L, the light emitters P9 to P12 emit light in a low color, which is a second color different from the reference color.
Further, the other side of the light emitter P1 at the tuning reference position N, that is, a plurality of (four in the present embodiment) light emitters P2 to P5 has a fundamental frequency of the sound of the instrument compared to the reference frequency. A high display area H in which the deviation is positive is high. In the high display area H, the light emitters P2 to P5 emit light in the high color, which is a third color different from the reference color and the low color.

  The illuminators P at the tuning reference position N, the low display position L, and the high display area H are in a semi-lighted state with reduced brightness in a standby state where the sound of the instrument is not input, and the sound of the instrument is input. When the light is emitted, the light emitter P at a position corresponding to the deviation between the fundamental frequency of the sound and a predetermined reference frequency is turned on to display the cent. As a result, the performer can visually recognize the tuning state. In FIGS. 3 and 4, the illuminant P11 in the low display area L is lit to indicate the tuning state, which indicates that the fundamental frequency of the sound of the instrument is lower than the reference frequency. .

  In the tuning device 1 of the present embodiment, the annular display unit 60 is configured such that the light emitter P that is the tuning reference position N is changed to another light emitter P due to the vertical change of the display surface 42, and accordingly, the low display area. L and the high display area H also change. Such a change is executed based on the output of the vertical recognition means 70 that recognizes the vertical direction of the liquid crystal unit 42.

  As an example of the vertical recognition means 70, a pendulum mechanism 71 shown in FIG. The pendulum mechanism 71 includes a rotation shaft 72 whose axis is the center of the annular display unit 60, and the rotation shaft 72 is rotatable relative to the tuning device main body 40. Further, a pendulum rod 73 that extends linearly outward in the radial direction is fixed to the rotating shaft 72, and a weight W having a predetermined weight is provided at the tip of the pendulum rod 73. By adopting such a configuration, as shown in FIGS. 6A to 6C, the rotating shaft 72 is always positioned so that the weight W is always located at the lowest position even when the top and bottom of the display surface 42 changes. Rotates so that the vertical direction A can be recognized.

Then, based on the information in the vertical direction A recognized by the vertical recognition means 70, as shown in FIGS. 7A to 7C corresponding to FIGS. The illuminant P, which is the display area L and the high display area H, changes.
That is, in the present embodiment, regardless of whether the display surface 42 is up or down, the light emitter P having the circumferential positional relationship with respect to the vertical direction A at the uppermost position is always set as the tuning reference position N, and both sides thereof are low-displayed. The area L and the high display area H are set. The light emitter P at the tuning reference position N always emits light in the reference color, emits light in the low color in the low display area L, and emits light in the high color in the high display area H.

  In the tuning device 1 provided with the display surface 42 as described above, when the upper and lower sides of the annular display unit 60 are changed, the upper and lower recognition means 70 recognizes the upper and lower sides and becomes the tuning reference position N based on this output. Since P changes, even if the up-down direction of the annular display portion 60 changes, the player can recognize the tuning state without a sense of incongruity.

More specifically, regardless of the upper and lower sides of the annular display portion 60, the light emitter P whose circumferential positional relationship with respect to the vertical direction A is at the uppermost position is always set as the tuning reference position N, and the low display areas L on both sides thereof. Since the high display area H is arranged, the same cent display can always be displayed at the same position as viewed from the performer even when the top and bottom of the display surface 42 changes. Therefore, regardless of the position of the tuning device 1 attached to the musical instrument or the orientation of the display surface 42, the performer can recognize the tuning state without a sense of incongruity.
In particular, not only when the display surface 42 is turned upside down, the display surface 42 is inclined (see FIGS. 6A and 7A) or vertically (see FIGS. 6B and 7B). ) Can display the cent display at the same position, so that the performer can recognize the tuning state without a sense of incongruity without being restricted by the mounting position of the musical instrument.

  Further, in the present embodiment, since the light emitter P which is the uppermost position on the circumference with respect to the vertical direction A is set as the tuning reference position N, the player can easily grasp the tuning reference position N sensuously. Can do. Therefore, it is possible to recognize the tuning state without a sense of incongruity.

  Furthermore, each of the light emitters P in the tuning reference position N, the low display area L, and the high display area H is in a semi-lighted state in which the brightness is reduced in a standby state in which no instrument sound is input. The range in which the cent display can be taken in the state can be shown. Therefore, it becomes possible to easily recognize the fundamental frequency of the musical instrument during tuning.

  Furthermore, since the illuminant P in the low display area L and the illuminant P in the high display area H emit light in different colors, when viewed from the tuning reference position N, one side is the low display area L and the other side is the high display area. In addition to recognizing the fundamental frequency of the musical instrument depending on the direction, such as H, it is possible to recognize the height based on the difference in color, so that the fundamental frequency of the musical instrument can be recognized more easily.

  As described above, the tuning device 1 according to the embodiment of the present invention has been described in detail. However, the present invention is not limited to these without departing from the technical idea of the present invention, and some design changes are possible.

For example, the tuning device 1 is configured such that the tuning device main body 1 is attached to the musical instrument by the clip unit 40. However, the clip unit 40 may have any structure, and the clip unit 40 is provided. It may not be.
Further, the light emitter P having the highest positional relationship on the circumference with respect to the vertical direction A is defined as the tuning reference position N. Instead, the positional relationship on the circumference with respect to the vertical direction A is the lowest position. The light emitter P may be set as the tuning reference position N.
Further, in addition to the uppermost position and the lowermost position, the illuminant P having a predetermined positional relationship in the circumference with respect to the vertical direction A, such as an intermediate position or an oblique position, may be the tuning reference position N.

In the embodiment, the light emission colors of the light emitting elements P in the low display area L and the high display area H are simply different from each other. You may comprise so that the shading of luminescent color may change continuously as it goes to the other side from one side, ie, it goes to the clockwise direction. In this case, it is necessary to use a multicolor LED capable of emitting a number of colors corresponding to the number of steps of the light emission color as the light emitter P.
By configuring in this way, in addition to recognizing the fundamental frequency of the instrument depending on the direction, such as the low display area on one side and the high display area on the other side when viewed from the tuning basic position N, the high and low are recognized by the shade of the color. Therefore, the fundamental frequency of the musical instrument can be recognized more easily.

  For example, as shown in FIG. 8, a display panel 80 on which a mark (for example, “0”) indicating the light emitter P at the tuning reference position N is described may be provided. Note that the display panel 80 may include a numerical value indicating the height of the cent display.

  As shown in FIGS. 8 and 9, the display panel 80 has a disk shape whose diameter is substantially the same as the inner diameter of the annular display portion 60, and the center is aligned with the annular display portion 60. It is attached so that it can rotate around. In other words, the display panel 80 is fixed to one end side of a rotation shaft 81 that is built in the tuning device main body 40 and has the center of the annular display portion 60 as an axis, and the rotation shaft 81 is relative to the tuning device main body 40. It rotates on the display surface 42 by rotating. Further, a pendulum bar 82 that extends linearly outward in the radial direction is fixed to the rotary shaft 81, and a weight W having a predetermined weight is provided at the tip.

  With such a configuration, the rotating shaft 81 and the display panel 80 rotate so that the weight W is always located at the lowermost position when the display surface 42 changes vertically. As a result, the mark on the display panel 80 is always located at the same position in the positional relationship with respect to the vertical direction A. For example, the mark on the uppermost position in the positional relationship on the circumference with respect to the vertical direction A is indicated.

Accordingly, even when the light emitter P that is the tuning reference position N changes based on the vertical recognition of the vertical recognition means 70, the display panel 80 rotates following the change, and the mark on the display panel 80 Therefore, it is possible to always indicate the light emitter P at the tuning reference position N. Thereby, the performer can easily grasp the tuning reference position N and perform tuning work without a sense of incongruity.
Note that the rotation shaft 81 to which the display panel 80 is attached, the pendulum bar 82, and the weight W may also serve as the pendulum mechanism 71 as the vertical recognition means 70.

Further, for example, as shown in FIG. 10, perforated panels 90 each having a through hole 91 may be provided at locations corresponding to the respective light emitters P in the low display area L and the high display area H.
As shown in FIGS. 10 and 11, the perforated panel 90 has a disk shape whose diameter is larger than the outer diameter of the annular display portion 60, and the center thereof coincides with the annular display portion 60. It is rotatably mounted to the central direction. That is, the perforated panel 90 is fixed to one end side of a rotation shaft 92 that is built in the tuning device main body 40 and has the center of the annular display portion 60 as an axis, and the rotation shaft 92 is fixed to the tuning device main body 40. It rotates on the display surface 42 by relative rotation. Further, a pendulum bar 93 extending linearly toward the outer side in the radial direction is fixed to the rotary shaft 81, and a weight W having a predetermined weight is provided at the tip.
Further, according to the through-holes 91 corresponding to the light emitter P low display area L and the high display area H, the diameter, toward the one side in the other hand side, ie, toward the clockwise direction, stepwise It is formed to be large. A through hole 95 may also be provided at a location corresponding to the tuning reference position N.

With this configuration, when the top and bottom of the display surface 42 change, the rotating shaft 92 and the perforated panel 90 rotate so that the weight W is positioned at the lowest position. As a result, the through-holes 91 and 95 are maintained at the same position in the vertical direction A, and are always positioned on the light emitters P of the tuning reference position N, the low display area L, and the high display area H. Become.
In this way, even if the tuning reference position N changes with the vertical change of the display surface 42, the perforated panel 90 rotates so as to follow, and the fundamental frequency of the musical instrument with the large and small through holes. Can be shown.
Further, if the tuning reference position N, the low display area L, and the high display area H can be recognized by the size of the through holes 91 and 95 as described above, the player is in a tuning state even if the light emitter P is configured by a single color LED. Can be recognized without a sense of incongruity.
The rotating shaft 92, the pendulum bar 93, and the weight W to which the perforated panel 90 is attached may also serve as the pendulum mechanism 71 as the vertical recognition means 70. Further, the perforated panel 90 is marked. It may be described and also serve as the function of the display panel 80.

Furthermore, in the embodiment, the vertical recognition means 70 using the pendulum mechanism 71 has been described. Instead, for example, as shown in FIG. 12, the vertical recognition means 70 is provided in the vicinity of each light emitter P. It may be provided with the up / down recognition switch 75 provided.
In the case of such a configuration, when the up / down recognition switch 75 in the vicinity of the light emitter P having the player's confidence at the highest position is pressed according to the vertical direction of the tuning device main body 40, the light emission in the vicinity of the up / down recognition switch 75 is emitted. The body P is set as the tuning reference position N. In other words, the tuning reference position N can be set to the uppermost position, the lowermost position, or an arbitrary position manually by the performer regardless of the orientation of the display surface 42. Thereby, even if the upper and lower sides of the display surface 42 are changed, the player can recognize the tuning state without a sense of incongruity.

  Further, an acceleration sensor may be employed as the vertical recognition means 70. In this case, it is possible to recognize the vertical direction of the display surface 42 by detecting the acceleration when the vertical direction of the display surface 42 changes. Further, if a small acceleration sensor is used, the configuration itself can be made more compact than when the pendulum mechanism 71 is used.

DESCRIPTION OF SYMBOLS 1 Tuning apparatus 10 Clip part 20 1st board | plate material 21 1st board | plate material main body 22 Jaw board part 23 Lower pad 30 2nd board | plate material 31 Refraction part 32 Clamping plate part 33 Upper pad 34 Escape plate part 36 Hinge part 37 Rotating shaft 40 Tuning apparatus body 41 Housing 42 Display surface 43 Main back surface 44a Inclined back surface 44b Inclined back surface 50 Connecting member 51 Rotating shaft 60 Annular display portion 70 Vertical recognition means 71 Pendulum mechanism 72 Rotating shaft 73 Pendulum rod 75 Vertical recognition switch 80 Display panel 81 Rotating shaft 82 Pendulum Bar 90 Perforated panel 91 Through hole 92 Rotating shaft 93 Pendulum rod 95 Through hole A Vertical direction P Light emitter W Weight

Claims (9)

In the tuning device that measures the deviation between the fundamental frequency of the sound of the instrument and the reference frequency that is the reference for comparison, and displays the deviation as a cent display,
Provided with an annular display portion in which a plurality of light emitters are arranged on the circumference,
Among the light emitters, one of the light emitters is set as a tuning reference position with a deviation of 0, and the plurality of light emitters on one side of the tuning reference position are set as a low display area where the deviation is − and The plurality of light emitters on the other side of the tuning reference position is a high display area in which the deviation is +,
Comprising a vertical recognition means for recognizing the top and bottom of the annular display part;
When the upper and lower of the annular display portion is changed, based on the output of the upper and lower recognizing means, the light emitter that is the tuning reference position is changed ,
One of the light emitters whose positional relationship on the circumference with respect to the vertical direction is a predetermined position is set as a tuning reference position,
The tuning apparatus according to claim 1, wherein, when the upper and lower sides of the annular display portion are changed, the light emitting body that has newly become the predetermined position is set as the tuning reference position based on the output of the vertical recognition means . The tuning apparatus according to claim 1 , wherein the predetermined position is an uppermost position or a lowermost position in a positional relationship on the circumference with respect to the vertical direction. 3. The tuning according to claim 1, wherein each of the light emitters of the tuning reference position, the low display area, and the high display area is half lit in a standby state in which no sound of an instrument is input. apparatus. The tuning device according to any one of claims 1 to 3, characterized in that said light emitter low display area and the light emitter of the high display area emits light in different colors from each other. The low display area and contrast of luminescent colors of the light emitter of the high display area is any one of 4 from claim 1, wherein the continuously varying be toward from said one side to said other side Tuning device described in 1. A display panel that is rotatably mounted around the center axis of the annular display portion and includes a mark that indicates the tuning reference position,
Tuning device according to any one of claims 1 to 5, characterized in that the display panel is configured to rotate to follow the change in the rhythm reference position. It is rotatably attached around the center axis of the annular display portion, and includes a perforated panel having through holes at locations corresponding to the light emitters of the low display area and the high display area, respectively.
Is formed to become gradually larger as the diameter of the through hole toward the other side in the said one side,
Tuning device according to any one of claims 1 to 5, characterized in that the perforated panel is configured to rotate to follow the rhythm reference position. Said upper and lower recognition means weights tuning device according to any one of claims 1 to 7, characterized in that the pendulum mechanism recognizes the vertical direction with the rotating shaft rotates so as to be positioned lowermost . The tuning device according to any one of claims 1 to 7 , wherein the vertical recognition means is an acceleration sensor that recognizes a vertical direction by detecting an acceleration when the vertical direction changes.

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