JP5122193B2 - Musical sound device and production method and modification method of musical sound device - Google Patents

Description

  The present invention relates to a musical sound device and a production method and a modification method of the musical sound device, and in particular, attaches a vibrating body that vibrates a contacting object and emits sound from the same object to an acoustic instrument to generate and release the musical sound. It relates to what makes it sound.

  Conventionally, as such a vibrating body, an electromagnetic driving body is joined to a piano sound board, and a musical sound signal is sent to the electromagnetic driving body to vibrate the sounding board instead of the electromagnetic driving body. The sound is emitted and emitted from. This electromagnetic driving body is a vibrating body.

Japanese Utility Model Publication No. 60-150894 JP-A-8-146949 JP-A-8-111896 JP-A-4-156799 JP-A-53-69624 JP-A-4-56996 Japanese Patent Laid-Open No. 5-80748 Japanese Patent Laid-Open No. 5-73039 Japanese Patent Application No. 2006-181135 (unpublished) Japanese Patent Application No. 2006-160054 (unpublished) Japanese Patent Application No. 2006-151287 (unpublished) Japanese Patent Application No. 2006-141954 (unpublished) Japanese Patent Application No. 2006-135899 (unpublished)

  However, when a vibrating body is attached to such an instrument, the vibrating body is conspicuous and the appearance of the instrument / keyboard instrument is impaired.

  In order to achieve the above object, the present invention converts a musical tone signal composed of a plurality of types of musical sounds into a mechanical change, and vibrates a sounding plate that touches to radiate sound from the sounding plate, Installed in contact with the inside of the sound board of the keyboard instrument, in the hole formed on the vertical lower front plate placed under the horizontal shelf on the front of the keyboard instrument, inside this hole Then, an attachment member is fixed to the shelf board, and a sound generator that transmits a sound signal composed of a plurality of types of musical sounds to the sound and transmits the sound to the shelf board is attached to the attachment member.

  Further, the present invention is provided with a silencer mechanism that prohibits the hammer from vibrating the string and causing the string to sound, prohibiting the string from being sounded by the silencer mechanism, allowing signal output from the signal output means, The mechanism switches between allowing the string to be sounded and prohibiting the signal output from the signal output means, and switching whether to output the signal from the signal output means to the vibrator.

  Furthermore, the present invention can perform the ensemble by simultaneously performing the pronunciation by the string and the vibration body or / and the headphone for the sound generation by the strings of the keyboard instrument, the sound by the vibration body, and the sound by the headphones. Or a switching means for simultaneously performing sound generation by a vibrating body and sound generation by a headphone to enable these ensembles.

  As a result, the vibrating body and the sounding body are attached to the inside of the keyboard instrument, the vibrating body and the sounding body are not conspicuous from the outside of the instrument / keyboard instrument, and the outside of the instrument / keyboard instrument is not damaged. Even if it is modified, it is not known from the outside.

  Further, when the string is prohibited from being sounded, it can be sounded through the vibrating body instead. When the string is sounded, the sounding by the vibrating body is prohibited instead. Conversely, when a string is sounded, it is also sounded by a vibrating body, and when sounding of the string is prohibited, sounding by the vibrating body is also prohibited at the same time.

  In addition, it is possible to perform ensemble with keyboard strings and vibrators and / or headphones, and perform ensembles of acoustic and electronic musical sounds, while the same tone, pitch, and touch with the same operation, It is possible to add musical tones that differ in sound quality by adding sounds with different sound quality.

  In addition, you can perform an ensemble of strings or vibrators and headphones, and you can listen to the sound quality of this musical tone with headphones while emitting the same tone, pitch, and touch sound of the same operation with a keyboard instrument. In addition to sound emission from keyboard instruments, people with hearing impairments can hear the same tone, pitch, and touch sound of the same operation with their headphones.

  In the musical sound device remodeling method of the present invention, a sounding device, a vibration exciter, a circuit for driving the sounding device, and the like are later added to the musical sound device (musical instrument) once produced. In the production method of the musical sound device of the present invention, the sounding body, the vibration exciter, and the circuit for driving the same are incorporated in the production of the musical sound device (musical instrument).

(1) Sound board (musical instrument) sound board 8
1 is a longitudinal section viewed from the left side of the musical sound device (musical instrument), FIG. 2 is a longitudinal sectional view viewed from the right side of the musical sound device, FIG. 3 is a rear view of the musical sound device, and FIG. 4 is a front view of the musical sound device. . This musical sound device is an example of an acoustic upright piano. A square-shaped frame (post) 1 is assembled in a square frame shape, and a plurality of, for example, three inner columns 2 extending vertically are fixed at substantially equal intervals inside the square frame of the frame (post) 1. Yes.

  A pin plate 3 is fixed to the upper side of the front surfaces of the frame 1 and the inner column 2, and a bottom plate 4 is fixed to the lower side of the front surfaces of the frame 1 and the inner column 2, and the upper surfaces of the frame 1 and the inner column 2. A roof plate 5 is fixed to the left and right side plates of the frame 1 and the inner support 2.

  On the inner side surrounded by the pin plate 3, the bottom plate 4, the left main plate 6 and the right main plate 7, and on the back side of the musical sound device, a rectangular flat plate sound board 8 is a wood screw, bolt or adhesive. It is attached almost vertically. The soundboard 8 is a large single plate formed by joining a plurality of wood plates. The grids or grain of each part of these connected wood boards are aligned in substantially the same direction along the longitudinal direction of the wood boards.

  As a result, the sound of the soundboard 8 spreads uniformly throughout the soundboard 8 without being biased to a part of the soundboard 8, and the musical sound emitted from the soundboard 8 is inadvertently mutated, altered, distorted, or reduced in volume. It will not be done.

  The sound board 8 may be a single board or thin film board cut out from timber, and may be a veneer board, a plywood board, a decorative board, a laminated board, or the like. These plywood, plywood, decorative board, and laminated timber are laminated or connected with a plurality of wooden boards. In this case, each piece of wood or each grain of the wooden boards is not aligned in the same direction. Sometimes.

  Even in such a case, there is a composite direction of each square or grain of these multiple wooden boards, there is also the direction of the most numerous squares or grain of the multiple wooden boards, and the innermost electromagnetic There is also a direction of the mesh or grain of the laminated surface in contact with the drive units 31 and 37, and there is also a composite direction of each mesh or each grain whose weight is increased toward the inner side. This is the plywood or wood grain of these plywood, plywood, decorative board, and laminated wood.

  The direction of the sound or grain of the sound board 8 is 20 ° to 70 °, preferably 30 ° to 60 °, more preferably 40 ° to 50 °, for example, substantially 45 ° with respect to the horizontal direction. Yes. The plate surface of the soundboard 8 is along the vertical direction. This sound board 8 is oscillated to emit sound.

  A plurality of sounding rods 9 are attached and fixed to the outer surface of the rear surface (back surface) of the soundboard 8 with wood screws, bolts, adhesives, or the like. The longitudinal direction of the sounding rods 9 is different from the direction of the lattice or the grain of the sounding board 8, and is substantially aligned in a substantially orthogonal direction. Two to thirty, preferably five to twenty, for example ten, of the sounding rods 9 are attached at almost equal intervals.

  The sounding bars 9 may be inclined at 20 to 70 degrees, preferably 30 to 60 degrees, more preferably 40 to 50 degrees with respect to the horizontal direction. As a result, the sound of the soundboard 8 spreads uniformly throughout the sound without being biased in the horizontal direction and / or vertical direction, and the musical sound emitted from the soundboard 8 is inadvertently mutated, altered or distorted, and the volume is reduced. Will not be lost. Since the sound board 8 has a rectangular shape, the sound of the sound board 8 has a property of being originally biased in the horizontal direction and / or the vertical direction.

  Each of the sounding bars 9 is arranged in a direction substantially perpendicular to the grid or grain of the sounding board 8 and 40 degrees to 140 degrees, desirably 60 degrees to 120 degrees, more desirably 80 degrees to 100 degrees, for example. Yes. As a result, the sound of the soundboard 8 easily propagates along the mesh or the grain, but the sound is propagated across the mesh or the grain by each sounding bar 9... It spreads uniformly and the musical sound emitted from the sound board 8 is not inadvertently mutated, altered, distorted, or reduced in volume.

  The both ends of the sounding rods 9 reach the end of the sounding board 8. Thereby, it can be achieved to the edge of the sound board 8 that the sound of the sound board 8 is not biased in the horizontal direction and / or the vertical direction, and the musical sound emitted from the sound board 8 is inadvertent. Will not be mutated, altered, distorted, or reduced in volume.

  Both ends of the sounding bar 9 are thin. As a result, the resonance of the soundbar 9 itself is prevented, and the musical sound emitted from the soundboard 8 is not inadvertently mutated, altered, distorted, or reduced in volume.

  The intervals of the sound bars 9 are 10 cm to 30 cm, and may be unequal intervals instead of equal intervals. As a result, the sound bars 9 become vibration nodes, and the sound having the same frequency does not resonate between the sound bars 9. The musical sound emitted from the sound board 8 is inadvertently mutated. It will not be altered, distorted or reduced in volume. Such sounding rods 9 may be attached to the front side other than the rear side of the sounding board 8.

  A metal frame 10 is attached and fixed by a wood screw, a bolt, an adhesive or the like from the front surface of the pin plate 3 to the bottom plate 4 on the front surface of the soundboard 8. A large number of strings (piano lines) 11. A piece 12 is sandwiched between the strings 11 ... and the soundboard 8, and the vibrations of the strings 11 ... are transmitted to the soundboard 8 so that the soundboard 8 vibrates to produce sound. .

  In front of the bottom plate 4 of the musical sound device, a pair of front bases 12 and 12 are attached and fixed to the left and right with wood screws, bolts, adhesive, or the like. A pair of shelf support columns 13 and 13 extending vertically are fixed on the front bases 12 and 12 by wood screws, bolts, an adhesive, or the like, and a plate extending in the horizontal direction on the shelf support columns 13 and 13. A shelf 14 is attached and fixed with wood screws, bolts, adhesive, or the like.

  A keyboard 15 is mounted on the front side of the shelf board 14, and an arm 16 is attached and fixed to the interior of the shelf board 14 with wood screws, bolts, an adhesive, or the like. A keyboard lid 17 is attached and fixed by a wood screw, a bolt, an adhesive or the like so as to be openable and closable from the upper front edge of the arm 16 to the upper front edge of the shelf board 14.

  On the inner side surrounded by the front edge of the upper surface of the bottom plate 4, the inner front edge of the left master plate 6, the inner front edge of the right master plate 7, and the lower surface of the shelf board 14, a rectangular and flat lower front plate 18 can be opened and closed and removed. It is attached. On the inner side surrounded by the front edge of the lower surface of the roof plate 5, the inner front edge of the left main plate 6, the inner front edge of the right main plate 7, and the upper upper edge of the keyboard lid 17, a rectangular and flat upper front plate 19 is opened and closed. And it is removably attached.

(2) Attachment structure of electromagnetic drive unit (electromagnetic drive / vibration body) 31, 37 FIG. 5 shows an attachment structure of electromagnetic drive unit (electromagnetic drive / vibration body) 31. An L-shaped metal fitting 32 made of a metal plate is screwed to the left side of the lower surface of the shelf board 14. The L-shaped metal fitting 32 is formed in an “L” shape by bending the center of an elongated metal plate at a right angle, and has a height of about 10 to 30 cm.

  The upper half of the L-shaped bracket 32 is horizontal and is screwed to the lower surface of the shelf board 14. The lower half of the L-shaped metal fitting 32 is vertically oriented and has a hole in the center. A hexagonal bolt 33 is inserted into the hole, and a nut 34 and an adjustment knob 35 are screwed into the bolt 33, and the L-shaped metal fitting 32 can be clamped by the nut 34 and the adjustment knob 35. .

  The tip of the bolt 33 is screwed and fixed in a screw hole at the center of the rear surface of the electromagnetic drive unit 31. In a state where the nut 34 and the adjustment knob 35 are turned to sandwich the L-shaped metal fitting 32, the electromagnetic drive unit 31 is pressed against the soundboard 8 to fix the L-shaped metal fitting 32 to the lower surface of the shelf board 14.

  Thereafter, the nuts 34 and 33 and the adjustment knob 35 are turned to press the electromagnetic drive unit 31 against the soundboard 8 with a predetermined force. When the electromagnetic drive unit 31 is vibrated / vibrated by this pressing, there is no momentary gap between the electromagnetic drive unit 31 and the soundboard 8, and the electromagnetic drive unit 31 and the soundboard 8 collide with each other. The vibration / abnormal sound is not generated, and the musical sound emitted from the soundboard 8 is not inadvertently changed, altered, distorted, or reduced in volume.

  FIG. 6 shows a mounting structure of the electromagnetic drive unit (electromagnetic drive body / vibration body) 37. A triangular bracket 36 made of a metal plate is screwed to the right side of the upper surface of the bottom plate 4. The triangular metal fitting 36 is bent in an “L-shape” at a right angle near the center of an elongated metal plate, and an oblique metal plate is screwed so as to bridge both ends of the “L-shape”, thereby forming a “triangle”. The height is about 10 to 120 cm.

  The lower surface corresponding to the short side of the triangular metal fitting 36 is horizontally oriented, is brought into contact with the rear surface (rear surface) of the front base 12 and is screwed to the upper surface of the bottom plate 4. The upper end of the triangular bracket 36 is vertically oriented, and a hole is formed in the center. A hexagonal bolt 33 is inserted into the hole, and a nut 34 and an adjustment knob 35 are screwed into the bolt 33, and the triangular bracket 36 can be clamped by the nut 34 and the adjustment knob 35.

  The tip of the bolt 33 is screwed and fixed in a screw hole at the center of the rear surface of the electromagnetic drive unit 37. In a state where the nut 34 and the adjustment knob 35 are turned to sandwich the triangular bracket 36, the electromagnetic drive unit 37 is pressed against the soundboard 8 to fix the triangular bracket 36 to the upper surface of the bottom plate 4.

  Thereafter, the nut 34 and the adjustment knob 35 are turned to press the electromagnetic drive unit 37 against the soundboard 8 with a predetermined force. When the electromagnetic drive unit 37 is vibrated / vibrated by this pressing, there is no momentary gap between the electromagnetic drive unit 37 and the soundboard 8, and the electromagnetic drive unit 37 and the soundboard 8 collide with each other to cause an abnormality. The vibration / abnormal sound is not generated, and the musical sound emitted from the soundboard 8 is not inadvertently changed, altered, distorted, or reduced in volume.

  Such an electromagnetic drive unit 31 cannot be fastened to the soundboard 8, the bottom plate 4, the roof plate 5, the left main plate 6, the right main plate 7, the lower front plate 18, the upper front plate 19 and the like with wood screws or bolts. Therefore, it is not necessary to make a hole in these, and the acoustic characteristics of the musical sound device including the soundboard 8 are not altered.

  In addition, wood screws and bolts are attached to the soundboard 8, the bottom plate 4, the roof plate 5, the left main plate 6, the right main plate 7, the lower front plate 18, the upper front plate 19 and the like, and holes are made in these. The sound quality and acoustic characteristics of the musical sound device do not change. The hole 52 is originally formed in the musical sound device and is not formed at the time of modification.

  The electromagnetic drive units 31 and 37, the L-shaped bracket 32, the triangular bracket 36, the speaker (sounding body) 51, the tweeter (sounding body) 55, the mounting plate (mounting member) 53, and the mounting bracket (mounting member) 54 are the lower plate 18. Are attached to the inside of the soundboard 8 and the inside of the soundboard 8 and are not visible at all from the outside of the musical sound device. Therefore, these electromagnetic drive units 31, 37, L-shaped bracket 32, triangular bracket 36, speaker 51, tweeter 55, mounting plate 53 Even if the mounting bracket 54 or the like is attached, the appearance and aesthetics of the musical sound device are not impaired.

  The external shape of the electromagnetic drive units 31 and 37 is composed of a cylindrical main body case and a circular flat diaphragm provided on the side surface of the main body case. The electromagnetic drive units 31 and 37 contain a coil and a magnet, and the coil is connected to one of the main body case and the diaphragm, and the magnet is connected to the other.

  When a musical sound signal comprising a plurality of types of musical sounds flows through the coil, the coil or magnet vibrates / drives / displaces due to the interaction between the magnetic field generated in the coil and the magnetic field of the magnet, and the vibration plate vibrates / Drive / displace. The diaphragm is joined (including attachment / connection / adhesion) to the soundboard 8 directly or via a connection member. Therefore, the electromagnetic drive units 31 and 37 convert a musical sound signal composed of a plurality of types of musical sounds into mechanical changes, and drive the sound board 8 of the musical sound device to emit sound.

  Thereby, the diaphragm and the soundboard 8 can be vibrated by electromagnetic driving. Unlike the speaker, the electromagnetic drive units 31 and 37 do not sound / sound themselves, but electromagnetically drive other joined objects to vibrate and emit sound. Such an electromagnetic drive unit 11 is disclosed in Japanese Patent Laid-Open Nos. 8-146949 and 8-111896.

  Since the lower surface corresponding to the short side of the triangular metal fitting 36 is in contact with the back surface (rear surface) of the front base 12, even if the reaction force of the electromagnetic drive unit 37 on the sounding board 8 is large, the triangular shape is triangular. The metal fitting 36 does not shift forward (to the right in FIG. 6).

  The adjusting knob 35 may be anything that can adjust the clamping force or clamping amount, such as a nut, screw screw, and thumbscrew. Further, the front side of the lower surface of the triangular bracket 36 may not be in contact with the back surface (rear surface) of the front base 12.

(3) L-shaped bracket 32 and triangular bracket 36 (support) and flexible plate 21 (flexible body)
A flexible plate 21 (flexible body) is adhesive or adhesive tape on the distal end surface / excitation surface of an electromagnetic drive unit (electromagnetic drive body / vibration body) 37 attached to the distal end of the triangular bracket 36 (support body). And is not attached to the electromagnetic drive unit 31 at the tip of the L-shaped metal fitting 32.

  The flexible plate 21 has cushioning properties, elasticity, and flexibility, and is interposed between the electromagnetic drive unit 37 (31) and the soundboard 8. Therefore, the flexible plate 21 is interposed as the length of the L-shaped metal fitting 32 and the triangular metal fitting 36 (support) is longer, and is not interposed as the length is shorter.

  Thereby, as the length from one end to the other end of the L-shaped bracket 32 and the triangular bracket 36 is longer, the vibration of the soundboard 8 is less likely to follow the excitation of the electromagnetic drive unit 37 (31), and the delay tends to be delayed. The delay is absorbed by the intervening flexible plate 21, and abnormal sound generated when the soundboard 8 and the electromagnetic drive unit 37 (31) collide with each other is not generated.

  Further, the flexible plate 21 may be made thicker / thinner as the length of the L-shaped bracket 32 and the triangular bracket 36 (support) is longer / shorter. Thereby, the absorption of the delay by the interposed flexible plate 21 is realized continuously / stepwise / steplessly.

  The electromagnetic drive unit 37 (31) is supported at one end of the L-shaped metal fitting 32 and the triangular metal fitting 36, and the other end is fixed to the musical instrument main body. The L-shaped metal fitting 32 and the triangular metal fitting 36 are the electromagnetic drive unit. 37 (31) is brought into contact with the soundboard 8. The lengths from one end to the other end of the L-shaped bracket 32 and the triangular bracket 36 are different for each of the plurality of electromagnetic drive units 37 and 31.

  Moreover, the adjustment amounts of the nut 34 and the adjustment knob 35 are the same in both of the electromagnetic drive units 37 and 31, and the force with which the electromagnetic drive units 37 and 31 are brought into contact with the soundboard 8 is the same. . However, it may be different. The contact force of the electromagnetic drive unit 37 may be greater, or the contact force of the electromagnetic drive unit 31 may be greater. Thereby, the contact force of the electromagnetic drive unit 31 is changed in accordance with the length from one end of the L-shaped bracket 32 and the triangular bracket 36 to the other end.

  For example, the following material is used for the flexible plate 21. The material is chloroprene rubber (DuPont neoprene rubber, Neo-180), hardness A60, tensile strength 7.4 MPa, elongation 290%, compression set 35% (70 ° C. × 22 h). The size is slightly smaller than the contact surface of the electromagnetic drive units 37, 31 with the soundboard 8, and the thickness is a few millimeters to several millimeters, for example, 0.5 mm to 2 mm. , Flexible.

  The force with which the electromagnetic drive units 37 and 31 are brought into contact with the soundboard 8 is the same as the own weight of the electromagnetic drive units 37 and 31, or twice, three times, four times, five times, six times, and seven times the own weight. , 8 times, 9 times, 10 times, tens of times, or larger than tens of times. The weight of the electromagnetic drive units 37 and 31 is several hundred grams, for example, 400 grams to 500 grams.

  Thus, if the force with which the electromagnetic drive units 37 and 31 are brought into contact with the soundboard 8 is larger than the weight of the electromagnetic drive units 37 and 31, the excitation force of the electromagnetic drive units 37 and 31 is reliably ensured. Therefore, the abnormal resonance sound generated when the soundboard 8 and the electromagnetic drive unit 37 (31) collide with each other is not generated.

The force with which the electromagnetic drive units 37 and 31 are brought into contact with the soundboard 8 is smaller than the pressure applied to the soundboard 8 by the piece 20 in the main body of the musical sound device. The pressure applied to the soundboard 8 by the piece 20 is about several hundred kilograms, for example, 200 kg to 400 kg.

  Thus, if the force with which the electromagnetic drive units 37 and 31 are in contact with the soundboard 8 is smaller than the pressure applied to the soundboard 8 of the piece 20 in the main body of the musical sound device, the vibration / sound of the string 11 is 20, the transmission to the soundboard 8 through hindrance is not hindered, and the vibration / sound due to the string 11 other than the vibration / sound due to the electromagnetic drive units 37, 31 is not changed and the sound / Radiated.

  The triangular bracket 36 (support) having a long length from one end to the other end is attached to the upper surface of the bottom plate 4 of the musical tone device of the keyboard, and the L-shaped bracket 32 (short from the one end to the other end is short. The support) is attached to the lower surface of the shelf 14 of the musical tone device of this keyboard.

  The triangular bracket 36 (support) having a long length from one end to the other end is lifted from below the bottom plate 4 of the musical tone device of the keyboard, and an L-shaped bracket having a short length from the one end to the other end. 32 (support) is suspended from above the lower surface of the shelf 14 of the musical tone device of this keyboard.

  Thereby, the radiation position of the sound from the electromagnetic drive units 31 and 37 can be set to a position close to the keyboard 15 or the shelf board 14, and the keyboard 15 can be played / operated when the keyboard 15 is played / operated. The finger / hand that is playing can feel the radiation / vibration of the sound, and a feeling close to that of an actual performance can be obtained.

  Further, the electromagnetic drive unit 37 at the tip of the triangular bracket 36 and the electromagnetic drive unit 31 at the tip of the L-shaped bracket 32 are arranged between the triangular bracket 36 and the L-shaped bracket 32, the bottom plate 4, the shelf plate 14, By interposing the left master plate 6, the right master plate 7 and the like, vibration / sound of one electromagnetic drive unit 31 (37) is hardly transmitted to the other electromagnetic drive unit 37 (31), and abnormal resonance sound is not generated. The sound quality of the electromagnetic drive units 31 and 37 can be kept high.

(4) Attachment Position of Electromagnetic Drive Units 31 and 37 The electromagnetic drive unit 31 is attached to the left end of the soundboard 8 and immediately below the shelf board 14. The electromagnetic drive unit 37 is attached to the right end of the sound board 8 and at a substantially intermediate position between the shelf board 14 and the bottom board 4.

  As a result, the electromagnetic drive units 31 and 37 are located at positions shifted from the same line along the grid or grain of the sound board 8 and positions shifted from the same line along the longitudinal direction of the sound bars. Attached to the surface of the board.

  Here, the electromagnetic drive unit 37 may be attached to the right end of the soundboard 8 and immediately below the shelf board 14. Even in this case, the electromagnetic drive units 31 and 37 are located at positions shifted from the same line along the grid or grain of the sound board 8 and from positions on the same line along the longitudinal direction of the sound bars. Attached to the surface of the soundboard.

  As a result, the vibration / sound from the electromagnetic drive units 31 and 37 is not biased along a certain line along the grid or grain of the soundboard 8 and is not biased along a part of the soundbar 9. The vibration / sound of the sound is not biased to a part of the soundboard, and is uniformly transmitted to the entire soundboard 8, and the vibration / sound transmission to the soundboard 8 is transmitted to almost every corner of the soundboard 8 at almost the same speed. The entire sound board 8 vibrates / sounds evenly, and the alteration / distortion of the musical sound from the sound board 8 is eliminated.

  In addition, the electromagnetic drive units 31 and 37 are attached to positions as far apart as possible with the substantial center of the soundboard 8 in between. The positions separated from each other as much as possible are the corners / vertices of the soundboard 8. However, even if the four corners / vertices of the sound board 8 are driven, the sound volume of the sound board 8 does not increase.

  In order to increase the volume of the soundboard 8, the electromagnetic drive units 31 and 37 must be attached to the center of the soundboard 8. However, if a plurality of electromagnetic drive units 31 and 37 are mounted close to the center of the soundboard 8, the musical sounds emitted from the soundboard 8 may be inadvertently mutated, altered or distorted due to interference with each other. I will do.

  Therefore, in order to harmonize the both, the electromagnetic drive units 31 and 37 are preferably attached at positions separated as much as possible across the substantial center of the soundboard 8.

  The sound board 8 has a long portion, that is, a longitudinal direction and a short portion, that is, a width direction in directions orthogonal to each other, such as a rectangle and a rhombus, and the electromagnetic drive units 31 and 37 are arranged in this longitudinal direction. Along the left and right edges of the soundboard 8, the soundboard 8 is spaced apart. This prevents the musical sounds emitted from the soundboard 8 from interfering with each other from being inadvertently mutated, altered, distorted, or reduced in volume.

  The electromagnetic drive units 31 and 37 are attached to positions that are substantially symmetrical with respect to the center of the soundboard 8. As a result, there is no imbalance in volume and sound quality in the transmission of each vibration / sound from the electromagnetic drive units 31 and 37 to the soundboard, and each vibration / sound from the electromagnetic drive units 31 and 37 is evenly distributed. Can be transmitted to the soundboard 8.

  Further, the sound board 8 has a line-symmetric shape such as a rectangle, a square, a hexagon, and the like, and the electromagnetic drive units 31 and 37 are attached at positions substantially on the axis of the line symmetry. Thereby, each vibration / sound from the electromagnetic drive units 31 and 37 is efficiently transmitted to the center of gravity / center of the soundboard 8, and the sound volume of the soundboard 8 is not reduced.

  Further, the electromagnetic drive units 31 and 37 are attached at substantially the same height from the bottom surface of the musical sound device, that is, the bottom plate 4. As a result, the vibrations / sounds from the electromagnetic drive units 31 and 37 are reflected on the floor surface and the bottom plate 4, and the sound field / sound atmosphere that is generated is not unbalanced. / Each sound is emitted equally from left to right.

  In practice, the electromagnetic drive units 31 and 37 are attached at positions slightly deviated from the center, center line or symmetrical axis of the sound board 8. Thereby, the sound from the electromagnetic drive units 31 and 37 is radiated strongly downward from above, and the performer can feel the sound from below.

  Of course, the electromagnetic drive units 31 and 37 may be attached at positions slightly shifted from the center, the center line, or the symmetrical axis of the sound board 8. Thereby, the sound from the electromagnetic drive units 31 and 37 is radiated | emitted strongly toward the upper direction from the downward direction, and a player can feel a sound from the top.

  Further, the electromagnetic drive units 31 and 37 are attached to the inside of the musical sound device in the sound board 8, and the sounding bars 9 are attached to the outer side of the musical sound device in the sound board. Therefore, the electromagnetic drive units 31 and 37 can be prevented from hitting the sounding rods 9.

  Moreover, the electromagnetic drive units 31 and 37, the L-shaped bracket 32, the triangular bracket 36, the speaker 51, the tweeter 55, the mounting plate 53, and the mounting bracket 54 are mounted on the inner side of the lower plate 18, the inner side of the soundboard 8, and the like. It can be hidden from the outside of the device, and the appearance of the musical sound device is not impaired.

  Furthermore, wood screws and bolts are attached to the soundboard 8, bottom plate 4, roof plate 5, left main plate 6, right main plate 7, lower front plate 18, upper front plate 19, etc. of the musical sound device, and holes are formed in these. The sound quality and acoustic characteristics of the musical sound device do not change. The hole 52 is originally formed in the musical sound device and is not formed at the time of modification.

  Moreover, the electromagnetic drive units 31 and 37 can be attached at positions corresponding to the sounding bars 9 without contacting the sounding bars 9. This is the case where the electromagnetic drive units 31 and 37 are mounted at positions that are as far apart as possible from each other, with the center of the soundboard 8 being sandwiched between them, and at positions that are as far as possible from each other across the center of the soundboard 8. For example, even if the mounting positions of the electromagnetic drive units 31 and 37 overlap the positions of the sounding rods 9..., The sound quality can be maintained and the effect of not causing imbalance can be maintained. Further, the size of the electromagnetic drive units 31 and 37 can be made larger than the interval between the sounding bars 9.

  FIG. 8 shows an embodiment in which only one of the electromagnetic drive units 31 and 37, for example, the electromagnetic drive unit 31 is attached to the soundboard 8. In this embodiment, the sound board 8 is attached to a position near the edge of the sound board 8 on the substantially symmetrical axis E of the sound board 8. Only the electromagnetic drive unit 37 may be attached to the soundboard 8.

  The direction P along the grain or grain of the soundboard 8 is substantially equiangular from the axis E and the edge direction AB of the soundboard 8. Further, the direction S along each longitudinal direction of each sounding bar 9 is substantially equiangular from the axis E and the edge direction AB of the sounding board 8. The electromagnetic drive unit 31 is attached to the surface of the soundboard 8 at such a position.

  With such an equiangular position, the vibration / sound from the electromagnetic drive unit 31 does not deviate along a certain line along the grid or grain of the sound board 8 and does not deviate along a part of the sound bar 9. The vibration / sound of the soundboard 8 is not biased to a part of the soundboard, and is uniformly transmitted to the entire soundboard 8, and the vibration / sound transmission to the soundboard 8 is almost the same throughout the soundboard 8. The sound board 8 is transmitted at a speed, and the entire sound board 8 vibrates / sounds evenly, and the alteration / distortion of the musical sound from the sound board 8 is eliminated.

  In FIG. 8, the intersection of the axial direction E, the edge direction AB of the soundboard, the direction P along the grid or grain of the soundboard 8, and the direction S along each longitudinal direction of each soundbar 9 are electromagnetically driven. Although it has shifted | deviated from the center of the unit 31, it is for making it easy to see drawing, and even if it moves to the center of the electromagnetic drive unit 31, it is the same.

  The electromagnetic drive unit 31 may be positioned at the center of the soundboard 8, but the sound quality of the soundboard 8 is improved at a position shifted from the center as described above. This is because the drum quality is hit for the same reason that the sound quality is better when the position shifted from the center to the edge is hit. However, if it deviates from the center, vibrations / sounds are not transmitted uniformly to the entire periphery of the soundboard 8. Therefore, if it is attached at the position as described above, vibration / sound is uniformly transmitted to the entire soundboard 8.

  In FIG. 8, the electromagnetic drive unit 31 is located slightly below the axis E of line symmetry of the soundboard 8. Thereby, it is possible to obtain a performance feel that sounds are transmitted from the lower side of the musical sound device to the floor.

  The electromagnetic drive unit 31 is attached at a position substantially equidistant from each portion of the piece 20 on which the plurality of strings 11 of the musical sound device are laid. As a result, vibration / sound from the electromagnetic drive unit 31 is uniformly transmitted to each string 11 through the piece 20 and is not biased to some strings 11. Harmony with resonance can be achieved.

  In this case, the pieces 20 that are equidistant from the electromagnetic drive unit 31 are not limited to all the pieces 20, but only the low strings 11 ... and the medium strings 11 ... as shown in FIGS. It is done. This is because the difference in length from the electromagnetic drive unit 31 hardly appears because the wavelength of the high sound is short.

  However, if the electromagnetic drive unit 37 is also attached in addition to the electromagnetic drive unit 31, the high-pitched strings 11... Are located at almost equal distances from the respective parts of the piece 20 on which the strings 11. Attached to.

  Therefore, if the electromagnetic drive unit 31 mainly outputs low or medium sounds, and the electromagnetic drive unit 37 outputs mainly high sounds, the electromagnetic drive units 31 and 37 in all sound ranges / frequency bands from low to high. From the electromagnetic drive units 31 and 37 to the respective strings 11 through the piece 20 and uniformly transmitted to the respective strings 11... The vibration / sound by the electromagnetic drive units 31 and 37 and the resonance of the strings 11 can be harmonized. The above holds true for the case where only the other electromagnetic drive unit 37 is attached alone to the musical sound device.

(6) Speaker 51, Tweeter 55 (sounding body)
9, 10 and 11 show a speaker 51, a tweeter 55 (sound generator), and the like. A long hole 52 is formed in the horizontal direction between the lower surface of the horizontal shelf 14 on the front surface of the musical sound device and the upper edge of the vertical lower front plate 18 disposed below the shelf 14. ing. An attachment plate 53 (attachment member) is attached to the lower surface of the shelf plate 14 inside the center of the hole 52 (on the back side of the musical sound device) so that the plate surface stands in the vertical direction. .

  The hole 52 is elongated from the left master plate 6 to the right master plate 7. Since the length (width) of the hole 52 is approximately twice the width of the mounting plate 53 and larger than the same width, there is no obstacle to the entry and exit of air at both ends of the hole 52. Therefore, no trouble occurs in the vibration of the soundboard 8.

  Metal mounting brackets 54 and 54 having an L-shaped cross section are joined to the inner surfaces of both ends of the mounting plate 53 (back side of the musical sound device), and a tweeter 55 is further connected to the inner surfaces of the mounting brackets 54 and 54 (back side of the musical sound device). , 55 are stacked, and screws or the like are passed through and fixed from the tweeters 55, 55 (sound generator) to the mounting plate 53 through the mounting brackets 54, 54.

  The upper surfaces of the mounting brackets 54, 54 that are bent in an L shape are joined to the lower surface of the shelf board 14 and fixed with screws or the like. Between the tweeters 55 and 55, the speakers 51 and 51 are fixedly attached to the inner side of the mounting plate 53 (back side of the musical sound device) with screws or the like.

  The speakers 51 and 51 are surrounded and covered with wooden box-shaped box covers 57 and 57 (shielding bodies). Only the upper surfaces of the box covers 57, 57 have no plate. However, since the upper surfaces of the box covers 57, 57 are joined to the lower surface of the shelf plate 14, the entire periphery of the speakers 51, 51 is surrounded and covered. The box covers 57 and 57 are fixed to the mounting plate 53 with screws or an adhesive.

  The tweeters 55, 55 of the mounting plate 53 and the mounting brackets 54, 54 and the front portions of the speakers 51, 51 are provided with sound emission holes 58, so that sound is easily emitted. A cloth 59 is adhered to the outside of the mounting plate 53 (on the front side of the musical sound device) so as to cover the sound emission holes 58, and dust, dust, etc. do not enter the sound emission holes 58.

  The bending angle of the “L-shaped” fittings 54, 54 is not a right angle but a slightly acute angle. Thereby, the attachment plate 53 is fixed obliquely, and the tweeters 55 and 55 and the speakers 51 and 51 are attached at positions where sound is emitted toward the lower surface of the shelf plate 14 obliquely above. The tweeters 55 and 55 and the speakers 51 and 51 convert a musical tone signal composed of a plurality of types of musical sounds into a sound and radiate it.

  Therefore, the sound emitted from the tweeters 55 and 55 and the speakers 51 and 51 hits or is transmitted to the shelf 14 on the front surface of the musical sound device. Further, the sound from the tweeters 55 and 55 and the speakers 51 and 51 is transmitted to the shelf board 14 through the mounting plate 53 and the mounting brackets 54 and 54.

  As a result, the shelf board 14 vibrates, the keyboard on the shelf board 14 vibrates or the entire musical tone apparatus vibrates, and the same musical tone as when an actual acoustic musical instrument is played can be generated. In addition, since a hand is placed on the keyboard on the shelf board 14, the performer of the musical sound device feels the vibration of the sound being played and the feel of the performance.

  Although the thickness of the mounting plate 53 is uniform / constant, the upper edge is thicker than the lower edge, and the inner surface of the mounting plate 53 (on the back side of the musical sound device) is not vertical but is inclined obliquely upward. It may be. Even in this case, as described above, the sound emitted from the speakers 51 and 51 hits or is transmitted to the shelf board 14 on the front surface of the musical tone apparatus, and the shelf board 14 vibrates, the keyboard on the shelf board 14 vibrates or the entire musical tone apparatus. Vibrate.

  The electromagnetic drive unit 31 (vibrator) is attached to the lower surface or the rear surface of the shelf board 14. Therefore, the vibration from the electromagnetic drive unit 31 (vibrator) is transmitted to the shelf board 14 and the keyboard on the shelf board 14 or the entire musical tone apparatus vibrates. As a result, the sound from the tweeters 55 and 55, the speakers 51 and 51 and the vibration from the electromagnetic drive unit 31 merge at the shelf board 14, and the vibration and sound are mixed synergistically, resulting in an actual acoustic musical sound device. You can get the same playing feel as when playing.

  Since the hole 52 is formed below the horizontal shelf 14 on the front surface of the musical instrument and is formed on the vertical lower front plate 18 disposed below the hole 52, the sound from the speaker 51 and the tweeter 55 can be heard. It hits in a wide range inside and outside the hole 52, and the same playing feel as when playing an actual acoustic musical instrument is obtained.

  Musical sound signals sent to electromagnetic driving units (electromagnetic driving bodies / vibrating bodies) 31, 37 that vibrate the sound board 8 on the back of the musical sound device and emit sound, and speakers 51, 51 (sounding body) on the front of the musical sound device ) Is the same musical signal and has the same phase.

  In this case, the phase of the sound to the inside of the soundboard 8 and the phase of the sound to the inside of the speakers 51 and 51 and the tweeters 55 and 55 are the same in mutually opposite phases. , They will strengthen each other. Such intensifying antiphase sounds cancel out the sounds to the outside of the speakers 51 and 51 and the tweeters 55 and 55 and the soundboard 8.

  However, since a box cover (shielding body) 57 is provided between the soundboard 8 and the speakers 51, 51, both sounds do not overlap and do not strengthen each other and are radiated to the outside of the musical sound device. The sound is not canceled. Such a box cover 57 is provided all around the speakers 51, 51, but may be provided on the back (rear surface), the right side, the left side, the upper surface, the lower surface, or some of them. May be open.

  Further, the box cover 57 may be attached to one or both of the tweeters 55 and 55. However, although the sound frequency from the soundboard 8 and the sound frequency from the speakers 51 and 51 are close, the sound frequency from the soundboard 8 and the sound frequency from the tweeters 55 and 55 are greatly different. Even if the tweeters 55 and 55 do not have the box cover 57, the above-mentioned sound is rarely strengthened.

  Compared with the size of the speakers 51, 51 and the tweeters 55, 55, the mounting plate 53 protrudes downward. Thereby, the sound of the reverse phase from the back side of the speakers 51 and 51 and the tweeters 55 and 55 does not leak to the outside, and the sound radiated from the speakers 51 and 51 and the tweeters 55 and 55 and the soundboard 8 is canceled out. There is no end.

  In addition, by the mounting plate 53 extending downward, the reverse phase sound from the back of the soundboard 8 is not leaked to the outside, and is emitted to the outside from the speakers 51 and 51, the tweeters 55 and 55, and the soundboard 8. The sound is not canceled out.

  The box cover (shielding member) 57 may be omitted. In this case, the sound to the inside of the soundboard 8 and the sound to the inside of the speakers 51 and 51 and the tweeters 55 and 55 strengthen each other but are shielded by the mounting plate 53 extending downward.

  A mounting cushion 48 (not shown) is bonded to a portion of the upper edge of the mounting plate 53 where the box cover 57 is located with a double-sided adhesive tape or an adhesive. With such an attachment cushion 48, the sound in reverse phase from the back of the speakers 51, 51 does not leak to the surface of the attachment plate 53, and the sound from the front of the speakers 51, 51 is not canceled out.

  An AMP board (printed board) 49 is attached to the lower inner surface (back face) of the attachment plate 53. The AMP board (printed board) 49 is mounted with a drive circuit that performs filter control, frequency characteristic control, phase control, amplification, and the like on the musical sound signal described below. As a result, the driving circuit can be attached to the speakers 51 and 51, the tweeters 55 and 55, etc. at the same time, which facilitates production, modification and processing.

(7) Drive circuit (signal output means)
FIG. 7 shows a drive circuit (musical sound control circuit, signal output means) for the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51. This drive circuit constitutes a tone generator 90 and a sound system 91 in the musical tone circuit 80 of FIG. The panpot circuit 61 outputs a plurality of left and right channel musical sound signals for forming an analog sound image converted from digital.

  Each key of the keyboard 15 is provided with various sensors, and an identification code of the operated key, a touch of strength / speed of the key operation, an on timing, an off timing, and the like are detected. The musical tone signal from the panpot circuit 61 is generated according to the pitch according to the identification code of the key, the tone of the keyboard instrument (musical tone device), and the touch of the key operation. Enter and release at off-timing.

  In this case, the touch may be omitted, the timbre may be different from the keyboard instrument (musical sound device) or may be omitted, and the pitch may be changed to a high tone or a low tone. Such a musical tone signal may be a musical tone signal based on stored automatic performance information (MIDI information) transmitted from the outside or manual performance information transmitted from the outside.

  The left musical sound signal L from the panpot circuit 61 is filter-controlled by the left DSP filter 62L, the left DSP filter 63L, and the left DSP filter 64L, and is divided into a high sound region, a middle sound region, and a low sound region, and a left 4-band equalizer 65L, The frequency characteristics are flattened by the left 4-band equalizer 66L and the left 4-band equalizer 67L, the phase is controlled by the left phase control circuit 68L, the left phase control circuit 69L, and the left phase control circuit 70L, and the left amplifier 71L, the left amplifier 72L, and the left After being amplified by the amplifier 73L, the sound is output from the tweeter 55, the speaker 51, and the electromagnetic drive unit 31 on the left side through the changeover switches 74L, 75L, and 76L.

  The right musical tone signal R from the panpot circuit 61 is filter-controlled by a right DSP filter 62R, a right DSP filter 63R, and a right DSP filter 64R, and is divided into a high range, a middle range, and a low range, and a right 4-band equalizer 65R. The frequency characteristics are flattened by the right 4-band equalizer 66R and the right 4-band equalizer 67R, the phase is controlled by the right phase control circuit 68R, the right phase control circuit 69R, and the right phase control circuit 70R, and the right amplifier 71R, the right amplifier 72R, the right After being amplified by the amplifier 73R, the sound is output from the tweeter 55, the speaker 51, and the electromagnetic drive unit 37 on the right side through the changeover switches 74R, 75R, and 76R.

  The change-over switches 74L, 75L, 76L, 74R, 75R, and 76R serve as a vibrating body switching unit that switches whether to output the musical sound signal to the electromagnetic drive units 31 and 37 (vibrating bodies).

  In the left phase control circuit 68L, the left phase control circuit 69L, the left phase control circuit 70L, the right phase control circuit 68R, the right phase control circuit 69R, and the right phase control circuit 70R, the amount of change in the phase of the musical tone signals R and L is changed. The phase control data for determining is sent. Such phase control data is converted from musical factor data of the musical tone signals L and R, musical factor data sent from outside through a MIDI circuit, and musical factor data inputted from the operation panel of the musical tone apparatus. Is done.

  The value of this phase control data is different for the left and right music signals L and R. As a result, the phases of the musical sound signals sent to the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 are different, and musical sounds having different phases are emitted between the left part and the right part of the soundboard 8. Stereo sound can be formed. The state of this stereo sound can be changed according to the musical factor.

  As described above, the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 are mounted at positions as far as possible from each other with the substantially center of the soundboard 8 interposed therebetween. 37, even if the musical sound signals of the tweeters 55 and 55 and the speakers 51 and 51 are out of phase, neither cancel each other nor distort the sound quality.

  The value of the phase control data may be the same for the left and right music signals L and R. As a result, the phases of the musical sound signals sent to the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 become the same, and both the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 Thus, the sound level of the soundboard 8 can be increased without increasing the level of the tone signal. In this case, both electromagnetic drive units 31 and 37 can be brought close to each other, or close to the center of the soundboard 8.

  Therefore, the difference between the values of the phase control data of the two musical sound signals L and R may be increased as the distance between the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 increases. As a result, the phase differences of the musical sound signals L and R sent to both the electromagnetic drive units 31 and 37, the tweeters 55 and 55, and the speakers 51 and 51 are the same as the plurality of electromagnetic drive units 31 and 37 and the tweeters 55 and 55. As the distance between the speakers 51 and 51 increases, the speaker 51 can be gradually changed from a state where the volume is increased synergistically to a state where stereo sound is formed.

  The left DSP filter 62L, the left DSP filter 63L, the left DSP filter 64L, the right DSP filter 62R, the right DSP filter 63R, and the right DSP filter 64R control the frequency characteristics. For example, the left DSP filters 62L, 63L, and 64L The low-pass and right DSP filters 62R, 63R, and 64R are made high-pass, and the right DSP filters 62R, 63R, and 64R are made different by changing the cutoff frequencies of the left DSP filters 62L, 63L, and 64L and the right DSP filters 62R, 63R, and 64R. Or let the bass pass through. As a result, the lower side of the sound board 8 is on the right side, and more bass is output from the bass side of the keyboard. In this way, it is possible to realize a sound that is closer to that of an actual acoustic keyboard musical sound device.

  In other words, in an acoustic keyboard musical sound device such as an actual piano, the vibration of the musical sound being generated is directly transmitted to the operated keyboard itself. This transmission vibration is transmitted to the bass key when the keyboard is in the low frequency range, and when the keyboard is operated at the high frequency range, the treble vibration is applied to the key in the high frequency range. If you are operating the midrange of the keyboard, the midrange vibration will be transmitted to the midrange key. The same applies to stringed instruments, wind instruments, and percussion instruments. This musical tone device can provide a live performance feeling of such an acoustic keyboard musical tone device.

  The values of the phase control data sent to the left phase control circuit 68L, left phase control circuit 69L, left phase control circuit 70L, right phase control circuit 68R, right phase control circuit 69R and right phase control circuit 70R are different from each other. . Thereby, for example, the phase of the musical tone signal of the tweeters 55 and 55 and the speakers 51 and 51 and the phase of the musical tone signal of the electromagnetic drive units 31 and 37 can be reversed or made different.

  In this case, the sound from the inside (back side) of the soundboard 8 and the sound from the inside (back side) of the tweeters 55 and 55 and the speakers 51 and 51 even without the box covers 57 and 57 (shielding body). Does not strengthen each other, but rather cancels each other out, and does not cancel these outside (front side) sounds. In this case, there is a possibility that the sound from the soundboard 8 on the back side of the musical sound device and the sound from the front speaker 51 etc. cancel each other, but since the directions in which the respective sounds radiate are opposite, there is little cancellation.

  When the electromagnetic drive unit 37 or 31 is attached to the inside of the soundboard 8, the phase of the sound from the soundboard 8 is inverted with respect to the phase of the sound from the tweeters 55 and 55 and the speakers 51 and 51 inside the musical sound device. Even if not, the sound radiated out of the musical sound device will not cancel out.

  When the electromagnetic drive unit 37 or 31 is attached to the outside of the soundboard 8, the phase of the sound from the soundboard 8 is inverted with respect to the phase of the sound from the tweeters 55, 55 and the speakers 51, 51 inside the musical sound device. Even if not, the sounds radiated within the musical sound device cancel each other. Therefore, the electromagnetic drive unit 37 or 31 may be attached to the outside of the soundboard 8.

  When the sounding bar 9 is attached to the outside of the sounding board 8, the radiation balance in all directions of the sound radiated to the outside of the sounding board 8 is improved and the cancellation is reduced. When the sounding bar 9 is attached to the inside of the sounding board 8, the radiation balance in all directions of the sound radiated to the inside of the sounding board 8 is improved and the cancellation is reduced.

  The outputs from the left amplifier 71L, the left amplifier 72L, and the left amplifier 73L are sent to the left earphone of the headphone 78 after adding reverberation (echo, reverb) and resonance in the reverberation resonance circuit 77L through the plug switch 79L. The outputs from the right amplifier 71R, the right amplifier 72R, and the right amplifier 73R are sent to the right earphone of the headphone 78 after adding reverberation (echo, reverb) and resonance by a reverberation resonance circuit 77R through an insertion switch 79R.

  The headphones 78 are attached to the left and right ears, so that the musical sound generated / sound from the left and right earphones does not leak out. The headphones 78 are detachably attached to the musical sound device.

  The plug-in switches 79L and 79R are closed when the plug-in jack of the headphone 78 is plugged in, and are opened when the plug-in jack of the headphone 78 is pulled out, and the mounting of the headphone 78 is detected. The change-over switches 74L, 75L, 76L, 74R, 75R, and 76R (vibrator switching means) are linked to the insertion switches 79L and 79R, and are opened when the insertion jack of the headphones 78 is inserted. Closed when 78 plug jacks are pulled out.

  Therefore, when the keyboard 15 of the keyboard instrument / musical sound device is played, if the headphones 78 are inserted, the performance music is output from the headphones 78 with reverberation and resonance added, and the headphones 78 must be inserted. For example, the tweeters 55 and 55, the speakers 51 and 51, and the electromagnetic drive units 31 and 37 (sound board 8) generate sound without adding reverberation / resonance. The plug-in switches 79L and 79R serve as a vibrating body switching means for switching whether to output the musical sound signal to the electromagnetic drive units 31 and 37 (vibrating bodies).

  Note that the reverberation / resonance is added to the musical sound from the electromagnetic drive units 31, 37 and the like, but the reverberation / resonance is not added to the musical sound from the headphones 78. Must be added. Such reverberation resonance circuits 77L and 77R can be omitted, and a changeover switch is provided so that a musical sound signal is sent to the headphones 78 via the reverberation resonance circuits 77L and 77R, or without passing through the reverberation resonance circuits 77L and 77R. It may be selected whether it is sent to the headphones 78.

  A mute switch lever 179 (mute switch means), which will be described later, prohibits the sound generation of the string 137 of the musical instrument / keyboard instrument, and the drive circuit (signal output means) is turned on to output a tone signal from the drive circuit. Switching between permitting and allowing the string 137 to sound, shutting off the power supply of the drive circuit (signal output means) and prohibiting the output of the tone signal from the drive circuit is switched.

  The mute switch lever 179 (mute switch means) and the change-over switches 74L, 75L, 76L, 74R, 75R, 76R (vibrator switching means) or the insertion switches 79L, 79R are linked or integrated. As a result, the tweeters 55 and 55, the speakers 51 and 51, the electromagnetic drive units 31 and 37 (sound board 8) and the sound generation of the musical instrument / keyboard instrument string 137 are prohibited, and the drive circuit (signal output means) is prohibited. ) Is turned on to allow the output of the tone signal from the drive circuit.

  Further, non-sounding from the tweeters 55 and 55, the speakers 51 and 51, the electromagnetic drive units 31 and 37 (the soundboard 8) and the sounding of the string 137 of the musical instrument / keyboard instrument are allowed, and the drive circuit (signal output means) ) Is turned on and the output of the tone signal from the drive circuit is prohibited. Thus, when sound generation from the string 137 is prohibited, sound is generated from the electromagnetic drive units 31 and 37, and when sound generation from the string 137 is allowed, sound generation from the electromagnetic drive units 31 and 37 is prohibited. .

  Further, the sound generation from the headphones 78 and the sound generation of the string 137 of the musical instrument / keyboard instrument are prohibited, and the driving circuit (signal output means) is turned on to allow the output of the musical sound signal from the driving circuit. Are linked. Prohibition of sound generation from the headphone 78 and sounding of the string 137 of the musical tone device / keyboard instrument are allowed, and the power supply of the driving circuit (signal output means) is cut off to prohibit the output of the musical sound signal from the driving circuit. Interlocked.

  Note that the mute switching lever 179 (mute switching means) and the change-over switches 74L, 75L, 76L, 74R, 75R, 76R (vibrator switching means) or the insertion switches 79L and 79R are not linked or integrated with each other. It may be linked / independent or separate. Thereby, a state opposite to the switching state described above is also possible.

  That is, the tweeters 55 and 55, the speakers 51 and 51, the electromagnetic drive units 31 and 37 (the soundboard 8), and the sound device / keyboard instrument 137 are allowed to generate sound, and the drive circuit (signal output means). This is linked with allowing the output of the musical sound signal from. Thereby, the musical sound from the electromagnetic drive units 31 and 37 and the musical sound from the string 137 are played together.

  Further, non-sounding from the tweeters 55 and 55, the speakers 51 and 51, the electromagnetic drive units 31 and 37 (the soundboard 8) and the sounding of the string 137 of the musical instrument / keyboard instrument are prohibited, and the drive circuit (signal output means) ) Is turned off and the output of the tone signal from the drive circuit is prohibited. As a result, the musical sound device / keyboard instrument is completely silent.

  Further, the sound generation from the headphones 78 and the sound generation of the tone device / keyboard instrument string 137 are allowed, and the drive circuit (signal output means) is turned on to allow the output of the tone signal from the drive circuit. Are linked. Further, prohibiting the sound generation from the headphones 78 and the sound generation of the string 137 of the musical instrument / keyboard instrument are prohibited, the power supply of the drive circuit (signal output means) is cut off, and the output of the musical sound signal from the drive circuit is prohibited. Are linked. Further, prohibiting the sound generation from the headphones 78 and the sound generation of the string 137 of the musical instrument / keyboard instrument are prohibited, and the driving circuit (signal output means) is turned on to allow the output of the musical sound signal from the driving circuit. Are linked.

  FIG. 14 shows the above switching state. Switching of string sound generation / string muffling (on / off) of the mute switching lever 179 (mute switching means), power on / off (on / off) of the drive circuit (signal output means), changeover switches 74L, 75L, The output / non-output (ON / OFF) of 76L, 74R, 75R, 76R (vibrator switching means) and the output / non-output (ON / OFF) of the plugs 79L and 79R of the headphone 78 are partly or entirely. It is linked / integrated, or part or all is not linked / independent / separate.

  In this interlocking and integration, each conduction line is connected to one mechanical switch, and the switch is shared by a plurality of conduction lines and integrated. The plurality of switches are connected and interlocked so as to be integrally turned on / off by a rod, a wire, a chain, a gear mechanism, a link, or the like. Further, on / off of one switch is electrically detected, and other solenoid switches, Hall element switches, semiconductor switches, and non-contact switches are turned on / off based on the on / off signal.

  As a result, with regard to string 137 sound generation, musical sound signal output, sound generation from electromagnetic drive units 31 and 37, sound generation from headphones 78, all sound generation / output, any sound generation / output, no sound generation / output Various performance states can be realized up to this state. Of the performance states shown in FIG. 14, any one of the performance states can be prohibited or omitted. Therefore, string sound generation / string mute, musical sound signal output / non-output, output / non-output to the vibrator, and output / non-output to the headphones are linked / non-linked in any combination.

  Further, the sound generation by the string 137, the sound generation by the tweeters 55 and 55, the speakers 51 and 51, the electromagnetic drive units 31 and 37 (sound board 8, vibration body), and the sound generation by the headphones 78 are as follows. Sound generation and sound generation by the electromagnetic drive units 31, 37, etc. and / or headphones 78 can be performed simultaneously to enable these ensembles. Furthermore, sound generation by the electromagnetic drive units 31 and 37 and sound generation by the headphones 78 can be performed simultaneously to enable these ensembles.

  As a result, the keyboard instrument string 137 and the electromagnetic drive unit 31, 37 or / and the headphone 78 can be performed, and an acoustic sound and an electronic musical sound are performed, and the same tone, pitch, and touch of the same operation are performed. However, it is possible to add musical tones of different timbres to the sound of the string 137 so that ensembles of different musical tones can be performed.

  In addition, the ensemble of the string 137 or the vibrator and the headphone 78 is performed, and the sound quality of this musical tone can be discerned with the headphone 78 while the same tone, pitch and touch sound of the same operation are emitted by the keyboard instrument. In addition, a person with hearing impairment can accurately hear the same tone, pitch, and touch sound of the same operation through the headphones 78 in addition to the sound emitted from the keyboard instrument.

  Note that the left DSP filter 64L or the right DSP filter 64R may be omitted, and further, the left DSP filter 63L or the right DSP filter 63R may be omitted. A part or all of the left 4-band equalizer 65L, the left 4-band equalizer 66L, the left 4-band equalizer 67L, the right 4-band equalizer 65R, the right 4-band equalizer 66R, or the right 4-band equalizer 67R may be omitted, or the left phase A part or all of the control circuit 68L, the left phase control circuit 69L, the left phase control circuit 70L, the right phase control circuit 68R, the right phase control circuit 69R, or the right phase control circuit 70R may be omitted.

  Further, both or one of the electromagnetic drive units 37 or 31 is omitted, the outputs from the left DSP filter 64L and the right DSP filter 64R are combined, and the outputs from the left 4-band equalizer 67L and the right 4-band equalizer 67R are combined, The outputs from the left amplifier 70L and the right amplifier 70R may be combined and input to one of the remaining electromagnetic drive units 37 or 31.

(8) Keystroke (action) mechanism 101 and damper mechanism 102
FIGS. 15 to 17 show a muffler that prohibits the hammer from vibrating the strings and causing the strings to vibrate by causing the strings to vibrate from each string by vibrating a number of strings with the hammer. Indicates the mechanism.

  15 and 16 show examples of the string striking mechanism 101, the damper mechanism 102, the jack prohibiting mechanism 103, and the hammer prohibiting mechanism 104. FIG. Keys 112 are provided on the shelf 111 (14) of the upright piano. A key rail 121, a balance rail 122, and a forehead 123 that extend laterally are provided on the back side, center, and front side of the shelf plate 111, and the keys 112 are provided on the key rail 121, the balance rail 122, and the front rail 123. It is done. A guide pin 124 protrudes from the front rail 123 for each key 112, and the guide pin 124 enters a hole in the lower surface of each key 112 to prevent the keys 112 from shaking left and right. .

  Balance keys 125 are provided in the center of the keys 112, and the keys 112 move about the fulcrum. Capstans 126 are provided on the upper surface of the keys 112, and are raised by key-on and lowered by key-off. On the capstan 126..., A whippen 127... Extending in the front-rear direction is provided, and the back side of the wippen 127... Is pivotably provided below the center rail 129 via the wippen flange 128.

  A longitudinally extending jack 130... Is swingably attached to the center of the wippen 127. The proximal ends of the jacks 130 are slightly protruded toward the front to form protrusions 130a. A jack spring 131 is fixed between the projecting portion 130a and the lower surface of the whippen 127, and the jack 130 is urged in the back direction.

  When the jacks 130 are lifted together with the wippen 127 in response to key-on, the ends of the jacks 130 push up the hammer bat 133, and the protrusions 130a contact the lower surface of the regulating button 132 ... ... Rotates and the tip of the jack 130 is detached from the hammer bat 133. The regulating buttons 132 are projected in front of the center rail 129.

  A vertically extending butt flange 135... Is fixed in front of the center rail 129, and the hammer bat 133 is rotatably supported at the tip of the butt flange 135. A hammer shank 134 is fixed on the hammer bat 133. A hammer head 136 is fixed to the tip of the hammer shank 134. When the jacks 130 are lifted, the hammer bats 133 are pushed upward, whereby the hammer bats 133 and the hammer shanks 134 are rotated backward, and the hammer heads 136 strike the strings 137.

  A cylindrical hammer rail 138 is fixed in front of the hammer shanks 134. A shock absorber 139 is attached to the inner surface of the hammer rail 138, and the hammer shanks 134 are received by the shock absorber 139. It is done. A back stop 140 projects from the hammer bat 133 toward the front, and a back check 141 projects from the top surface of the tip of the wippen 127 while the key 112 is pressed after stringing. , Backstops 140 are received by backchecks 141.

  A damper flange 143 extending in the back is fixed to the upper surface of the center rail 129, and a damper lever 144 extending vertically is supported at the tip of the damper flange 143 so as to be rotatable, before the damper lever 144. The damper springs 145 extending upward are fixed on the damper flanges 143, and the damper levers 144 are biased in the direction of the strings 137. A damper wire 146 is connected to the upper end of the damper lever 144, a damper head 147 is fixed to the tip of the damper wire 146, and a felt is attached to the inner surface of the damper head 147, This felt is in contact with the strings 137.

  On the other hand, a longitudinally extending damper spoon 148... Projects from the upper surface of the wippen 127... And the damper spoon 148. This causes the damper heads 147... To move away from the strings 137. A plate-shaped damper lever stop rail 149 is fixed in front of the damper wires 146... And a buffer portion 150 is attached to the inner surface of the damper lever stop rail 149. Wires 146 are received. The center rail 129, hammer rail 138 and damper lever stop rail 149 are bridged between action brackets 161, which will be described later.

(9) Jack prohibition mechanism 103 and hammer prohibition mechanism 104
FIGS. 15 and 16 show a jack prohibiting mechanism 103 and a hammer prohibiting mechanism 104, and FIG. 17 shows a jack prohibiting mechanism 103, a hammer prohibiting mechanism 104 and sound generation (keystroke sounding) / silence (silence, silence, electronic sounding). The switching mechanism 105 is shown.

  A cylindrical rotary shaft 162 is rotatably spanned below the two action brackets 161 in the piano. The base ends of the support links 163 and 163 are fixed to both ends of the rotating shaft 162, and the support shaft 164 is fixed between the tips of the support links 163 and 163. A jack shift roller 165 is rotatably supported on the support shaft 164. The base end of the drive link 166 is fixed to one end of the rotating shaft 162.

  A columnar rotation shaft 172 is rotatably spanned between the two action brackets 161... The base ends of the support links 173 and 173 are fixed to both ends of the rotating shaft 172, and the support shaft 174 is fixed between the tips of the support links 173 and 173. A hammer stop roller 175 is rotatably supported on the support shaft 174. The base end of the drive link 176 is fixed to one end of the rotating shaft 172.

  The ends of the drive links 166 and 176 are connected by a switching wire 177. The switching wire 177 extends further downward from the driving link 176, passes through the wire tube 178, and is provided in the shelf plate 111 (14). And is connected to a mute switching lever 179. The mute switching lever 179 and the wire tube 178 are provided on the lower surface of the shelf board 111 (14).

  A spring 168 is spanned between the tip of the drive link 176 and the inner wall of the pin plate or side plate of the piano, and the jack shift roller 165 and the hammer stop roller 175 are energized via the drive links 166 and 176. Is done. A stopper 169 of a spring 168 protrudes from the inside of one action bracket 161, and the upper end edge of the drive link 166 abuts on the stopper 169 to restrict the movable range of the drive links 166 and 176. The jack shift roller 165 and the hammer stop roller 175 are made of a cushioning material such as rubber, wood, sponge, felt, or soft resin.

  When the mute switching lever 179 is switched, the switching wire 177 is pulled against the urging force of the spring 168, and the jack shift roller together with the drive links 166 and 176, the rotating shafts 162 and 172, the support links 163, 163 and 173, 173 165 and the hammer stop roller 175 are rotated to change the direction from the state of FIG. 15 to the state of FIG. At this time, the mute switching lever 179 is stably held in the switched state.

  As a result, the jack shift roller 165 abuts against the jacks 130 and pushes out the jacks 130 against the jack springs 131 and thereby the tips of the jacks 130 are disengaged from the lower surface of the hammer pad 133 so that the jacks 130. It is prohibited to operate the hammers 133... 134. As a result, it is possible to prohibit the hammer head 136 from hitting the string 137 at the jack 130, and the force applied to the jack 130 at the time of stringing is smaller than the force applied to the hammer head 136 or the hammer shank 134. It is not necessary to increase the strength of the jack shift roller 65 or the jack prohibiting mechanism 3 or the strength of the jacks 130.

  Further, the jack 130... Rises while the jack shift roller 165 rolls on the jack shift roller 165 by the key-on operation or key-off operation, so that the jack shift roller 165 follows the contact surface of the jack 130. The collision sound that the string striking mechanism 101 hits the prohibiting mechanism is hardly generated, and the surface of the jack 130 is not worn.

  Further, the hammer stop roller 175 also rotates and approaches the hammer shank 134. As a result, even if the hammers 133... 134 .. 136 move toward the strings 137..., The hammer shanks 134 abut against the hammer stop roller 175 before the hammer heads 136 hit the strings 137. ... is prohibited from hitting strings 137 ... Since the hammer stop roller 175 is rotatable with respect to the rotating shaft 162, the hammer stop roller 175 can also absorb the movement of the hammer shanks 134 in the longitudinal direction.

  When the mute switching lever 179 is switched reversely and released, the switching wire 177 is pulled along the urging force of the spring 168, together with the drive links 166 and 176, the rotating shafts 162 and 172, and the support links 163, 163 and 173, 173. The jack shift roller 165 and the hammer stop roller 175 are reversely rotated to return from the state of FIG. 16 to the state of FIG. At this time, the top edge of the drive link 166 abuts against the stopper 169.

  As a result, the jack shift roller 165 is separated from the jacks 130, and the jacks 130 are restored by the urging force of the jack springs 131, so that the tips of the jacks 130 abut against the lower surfaces of the hammer pads 133, and the jacks 130 ... Are allowed to actuate the hammers 133... 134.

  Further, the hammer stop roller 175 also rotates in the reverse direction and moves away from the hammer shank 134. Accordingly, when the hammers 133, 134, 136, etc. move toward the strings 137, the hammer heads 136 are allowed to hit the strings 137, and the hammer heads 136 are allowed to strike the strings 137.

(10) Musical sound circuit 80
FIG. 18 shows the tone circuit 80. This musical tone circuit is configured as the above-described AMP substrate (printed substrate) 49, and is configured on the rear surface / rear surface of the mounting plate 53. The power supply circuit 92 supplies power to the entire musical tone circuit 80, supplies power when the power switch 93 is turned on, and cuts off power when the power switch 93 is turned off.

  The power switch 93 is connected to or interlocked with the above-described mute switching lever 179. The musical tone circuit 80 is powered on in conjunction with the mute switch lever 179 being switched to a silent state (silence, silence, electronic sound). Of course, the power-on of the musical sound circuit 80 is not interlocked with the mute switching lever 179, and electronic sound generation may be performed even in a sound generation (keystroke sound generation) state.

  The light emitting units 81 and 82, the light receiving units 83 and 84, the scan circuit 85, and the like which will be described in detail below, detect a key operation, and generate and output a musical sound signal corresponding to the operated key. It is.

  An optical shutter (not shown) having a step is provided on the lower surface of each of the keys 112... When the optical shutter is moved down by a key operation, light between the light emitting units 81 and 82 and the light receiving units 83 and 84 is detected. Is blocked. When the key 112 is further moved down, the lower step of the optical shutter first passes and is emitted from the light emitting unit 81 to the light receiving unit 83, and then the higher step of the optical shutter passes and passes from the light emitting unit 82 to the light receiving unit 84. Shining on. In the light receiving units 83 and 84, the light is converted into an electrical signal and output.

  The up edge / down edge of each signal from each of the light receiving sections 83... 84 is scanned by the scan circuit 85, and the timing of each light switching operation, that is, each light shielding timing and each light transmission timing is detected by the CPU 86. Touch data is created according to the detected difference in light shielding timing, difference in light transmission timing, and difference in light shielding time. Further, the key-on timing is detected according to the first light shielding timing. Further, the key-off timing is detected according to the last light shielding or light transmission timing.

  At this time, ROM 87, RAM 88, etc. are used. The musical tone data and the generated touch data corresponding to the detected key-on, key-off, and operation keys are stored in the memory device 89, sounded by the sound system 91 through the tone generator 90, or transmitted via the MIDI circuit 92. . This touch (velocity) data indicates the speed or strength of key operations such as pronunciation.

(11) Second Embodiment of Speaker 51 and Tweeter 55 (Sound Generator) FIG. 12 shows a second embodiment of speaker 51 and tweeter 55 (sound generator). In the present embodiment, the mounting plate 53 and the like are not arranged obliquely but arranged vertically (vertically). The L-shaped mounting bracket is bent at a right angle.

  Even in the second embodiment, the sound from the speakers 51 and 51 and the tweeters 55 and 55 strikes the shelf board 14. If the hole 52 is large and the height of the hole 52 is substantially equal to the apertures of the speakers 51 and 51 and the tweeters 55 and 55, even with such a vertical arrangement, sound can be radiated sufficiently outside the musical sound device. Other configurations, operations, and effects are the same as those in the first embodiment, and a description thereof will be omitted.

(12) Third Embodiment of Speaker 51 and Tweeter 55 (Sound Generator) FIG. 13 shows a third embodiment of speaker 51 and tweeter 55 (sound generator). Also in the present embodiment, the mounting plate 53 and the like are not arranged obliquely but arranged vertically (vertically). The L-shaped mounting bracket is bent at a right angle.

  The box cover 57 is a slightly tapered box shape, is a complete box shape in which the upper surface of the speaker 51 is also shielded, and is made of cardboard. The four side edges of the box shape are bent outward and fixed to the surface of the mounting plate 53. However, only the upper edge of the box cover 57 is not fixed, and the attachment cushion 48 is overlapped on the upper edge of the box cover 57 and is sandwiched between the upper edge of the attachment plate 53 and the lower surface of the shelf board 14.

  As a result, the sound from the speakers 51, 51 does not leak out of the box cover 57, and the reverse phase sound from the back of the speakers 51, 51 does not leak into the front surface of the mounting plate 53. The sound is not canceled out.

  A speaker cushion 56 is bonded to the inner back surface of the box cover 57, and the rear end of the speaker 51 is in contact with the speaker cushion 56. As a result, the reverse phase sound from the back of the speakers 51, 51 is absorbed by the speaker cushion 56, the reverse phase sound is attenuated and not diffused, the reverse phase sound is not transmitted to the box cover 57, and the speaker 51, The sound from the front of 51 is not negated.

  By the box cover 57 and the speaker cushion 56 that seal the speakers 51, 51, the sound in the opposite phase is synergistically considerably attenuated and reduced. Other configurations, operations, and effects are the same as those in the first embodiment, and a description thereof will be omitted.

(13) Other Embodiments The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, instead of the headphones 78, a small speaker, a small tweeter, and a small electromagnetic drive unit may be connected. As a result, a musical sound with reverberation / resonance is generated from the small speaker, the small tweeter, and the small electromagnetic drive unit.

  The headphones 78 can be omitted, and some or all of the insertion switches 79L and 79R (vibrator switching means) can be omitted. Part or all of the changeover switches 74L, 75L, 76L, 74R, 75R, and 76R (vibrator switching means) can be omitted. Part or all of the reverberation resonance circuits 77L and 77R can be omitted.

  The power switch 93 (silence switching means) can be omitted. A part or all of the light emitting units 81 and 82, the light receiving units 83 and 84, and the scan circuit 85 (signal output means) can be omitted. Jack prohibiting mechanism 103 (162, 163, 164, 165) (silencer mechanism), hammer prohibiting mechanism 104 (172, 173, 174, 175) (silencer mechanism), switching mechanism 105 (168, 169, 176, 177, 178, 179) A part or all of the (silence switching means) can be omitted.

  The changeover switches 74L, 75L, 76L, 74R, 75R, and 76R may be inserted not only at the input ends of the electromagnetic drivers 31, 37, the speaker 51, and the tweeter 55, but also at any location in the drive circuit of FIG. The plug-in switches 79L and 79R may be provided not only at the input right end of the headphones 78 but also at the output ends of the reverberation / resonance circuits 77L and 77R.

  The power switch 93 may be inserted in any part of the musical tone circuit 80 in FIG. 18 or the driving circuit in FIG. 7 to block the flow of musical tone signals. Some switches of the power switch 93, the changeover switches 74L, 75L, 76L, 74R, 75R, 76R, and the plug-in switches 79L, 79R may be combined with other switches.

  The change-over switches 74L, 75L, 76L, 74R, 75R, 76R, plug-in switches 79L, 79R, and part of the power switch 93 are make contacts, and the other is a break contact. Good.

  The change-over switches 74L, 75L, 76L, 74R, 75R, 76R, plug-in switches 79L, 79R, power switch 93, and mute switch lever 179 (mute switch means) are mechanical switches that turn on / off the circuit conduction path. However, any switch / switching means may be used as long as the circuit can be turned on / off, such as a solenoid switch, a hall element switch, a semiconductor switch, a contactless switch, a gate group, an AND gate group, a data selector, a multiplexer, and a demultiplexer.

  Jack prohibiting mechanism 103 (162, 163, 164, 165) (silencer mechanism), hammer prohibiting mechanism 104 (172, 173, 174, 175) (silencer mechanism), switching mechanism 105 (168, 169, 176, 177, 178) 179) The present invention including (silence switching means) may be applied to a grand piano type in addition to an upright piano type, and also hits a string such as a harpsichord, repels, claws, pinches, etc. The present invention may also be applied to a keyboard instrument that rubs or rubs.

  The silencer mechanisms (the jack prohibition mechanism 103 and the hammer prohibition mechanism 104) shown in FIGS. 15, 16, and 17 may be retrofitted to a once-produced musical sound device (keyboard instrument) later, or may be modified. (Keyboard instruments) may be incorporated at the same time as production.

  Similarly, the electromagnetic driving unit (electromagnetic driving body / vibrating body), speaker 51 (sounding body), tweeter 55 (sounding body), mounting plate (mounting member) 53, driving circuit, FIGS. The musical tone circuit 80 and the like may be retrofitted to the musical tone device (keyboard instrument) once produced, or may be incorporated at the same time when the musical tone device (keyboard instrument) is produced.

  The silencer mechanism (jack prohibiting mechanism 103, hammer prohibiting mechanism 104) shown in FIGS. 15, 16, and 17, the electromagnetic drive unit (electromagnetic driver / vibrator) shown in FIGS. Sound generator), tweeter 55 (sound generator), mounting plate (attachment member) 53, drive circuit, musical tone circuit 80, etc. are added later to the musical tone device (keyboard instrument) once produced at the same time or separately. May be modified at the same time, or both at the same time or separately, and may be incorporated in the production of the musical instrument (keyboard instrument), or one may be incorporated in the production of the musical instrument (keyboard instrument), The other may be retrofitted to a musical sound device (keyboard instrument) once produced.

  If the jack prohibiting mechanism 103 (162, 163, 164, 165) (silencer mechanism) and the hammer prohibiting mechanism 104 (172, 173, 174, 175) (silencer mechanism) can stop the movement of the jack 130, the hammers 134, 136 As long as the movement of the action can be stopped, it may be provided anywhere in the action mechanism.

  A switching mechanism 105 such as a silencer switching lever (silencer switching means) 179 prohibits the string from being generated by a silencer mechanism such as a wire, lever, rod, chain, gear mechanism, link mechanism, changeover switch, etc. As long as it is possible to switch between allowing the signal output from the signal output and allowing the sound generation of the string by the silencer mechanism and prohibiting the signal output from the signal output means, any method may be used.

  The light emitting units 81 and 82, the light receiving units 83 and 84, and the scan circuit 85 include a magnetic sensor such as a Hall element and a differential transformer, an electric field sensor such as a differential capacitor, a pressure sensor using a piezoelectric element, a speed sensor, an acceleration sensor, It is possible to detect which key is operated, such as a pressure sensor, a system using a multi-step switch that operates with time on / off, and the speed or strength of the key operation. Any operation can be used as long as an operation can be detected and a musical sound signal corresponding to the operated key 112 can be generated and output. In this case, these sensors, switches, and the like are provided on the lower surface of the key 112 or the upper surface of the shelf board 111 (14).

  The rotary shafts 62 and 72 may be directly attached to the side plate, or may be bridged between two columns erected from the shelf plate 111 (14), or the roof plate or pin plate of the musical sound device. The two ends may be suspended by two springs, or both ends may be slidably supported by guide rails provided inside the two side plates.

  In this case, four switching wires 177 are prepared, and each switching wire 177 is connected to the mute switching lever 179 and is connected to both ends of the rotating shaft 162 and both ends of the rotating shaft 172. The respective struts, both ends of the rotating shaft 162 and both ends of the rotating shaft 172 are biased by springs, and each strut is tilted or the rotating shafts 162 and 172 are slid by switching the mute switching lever 179.

  Further, the hammer prohibiting mechanism 104 can be omitted in some cases. This is because if the jacks 130 are released from the hammers 133, 134, 136, the hammers 133, 134, 136 are less likely to move greatly. In this case, the bridle tape or the bridle wire can be omitted.

  Furthermore, the front end of the drive link 166, the front end of the drive link 176, and the mute switching lever 179 may be connected by a link, a connecting rod, or the like. The jack shift roller 165 and the hammer stop roller 175 may be rotatable, fixed, or cylindrical or prismatic.

  Further, the hammer prohibiting mechanism 104 and the switching mechanism 105 are not limited to those described above, and various switching mechanisms can be used. The applicant of the present application has already applied for such various hammer prohibiting mechanisms and switching mechanisms. For example, Japanese Patent Application No. 5-243183, Japanese Patent Application No. 5-243184, Japanese Patent Application No. 6-50507, Japanese Patent Application No. 6 -55965, Japanese Patent Application No. 6-94970 and Japanese Patent Application No. 7-254282, and the drawings.

  The triangular bracket 36 (support) and the L-shaped bracket 32 (support) are not only the bottom plate 4 and the shelf plate 14, but also the pin plate 3, the left master plate 6, the right master plate 7, the lower front plate 18, and the upper front plate. 19 may be attached inside or outside, or may be omitted, and the shape thereof is arbitrary, and the material is made of metal, wooden, paper, resin, glass, cloth It may be made of ceramic.

  The number of the metal fittings 36 and 32 (supports) and the number of the electromagnetic drive units 31 and 37 (vibration bodies) may be three or more, and the length of each of the metal fittings 36 and 32 (supports) is short. There may be a variety of different lengths from one to the long. In this case, the thickness of the flexible plate 21 increases as the metal fittings 36, 32 (support) become longer, and the thickness of the flexible plate 21 decreases as the metal fittings 36, 32 (support) becomes shorter. Or disappear.

  The mounting plate 53 to which the speaker 51 and the tweeter 55 are fixed or the L-shaped metal fitting 32 to which the electromagnetic drive unit 31 is fixed is attached to the back surface, top surface, side surface, etc. of the shelf plate 14 in addition to the bottom surface of the shelf plate 14. Also good.

  The shape of the hole 52 formed on the vertical lower front plate 18 disposed under the horizontal shelf 14 on the front surface of the musical instrument is a single square and extends in the horizontal direction. It may be parted, round, oval, or any other shape, may extend vertically or diagonally, and may be covered with uncovered holes, metal, resin or cloth nets or perforated plates, cloth, etc. It may be covered or omitted.

  The attachment plate 53 is attached obliquely or has an inclined surface, but any inclined structure may be used as long as sound from the speaker 51 and the tweeter 55 is radiated toward the shelf plate 14. The mounting plate 53 may have a plate shape, a curved shape, a spherical shape, may be divided into a plurality of parts, or may be omitted. The material of the mounting plate 53 is made of metal, paper, resin instead of wood. Made of glass, cloth, ceramic.

  The shape of the box cover (shield) 57 may be any shape such as a hemispherical shape or a tapered shape in addition to the box shape. The size of the box cover (shielding body) 57 may be the size over the entire surface of the mounting plate 53, the size from the bottom plate 4 to the shelf plate 14, the size from the bottom plate 4 to the roof plate 5, and the left main plate 6 To the right main plate 7, a single shielding plate installed in the musical sound device may be omitted, or the material may be wood, paper, metal, resin Made of glass, cloth, ceramic.

  The mounting plate 53 having the speaker 51 and the tweeter 55 is mounted in addition to the shelf plate 14, the bottom plate 4, the roof plate 5, the left main plate 6, the right main plate 7, the skeleton (post) 1, the inner post 2, and the pin The board 3, the frame 10, the sound board 8, etc. may be sufficient, and one or both of the speaker 51 or the tweeter 55 may be omitted.

  Electromagnetic drive units (electromagnetic drive / vibration bodies) 31 and 37 are located at the center of the sound board 8 on the right center and left center, upper center and lower center, upper right corner and lower left corner, lower right corner and upper left corner, and center. It may be attached in the vicinity.

  Three or more electromagnetic drive units 31 and 37 may be attached to the soundboard 8 or may be omitted, and the number of soundboards 8 may be plural. In this case, they are attached to the right center, left center, upper center, and lower center, or to the upper right corner, lower left corner, lower right corner, and upper left corner.

  The electromagnetic drive units 31 and 37 and the soundboard 8 may be provided on the upper surface, front surface, left side surface or right side surface of the musical sound device, or may be replaced by a tweeter or a speaker. The electromagnetic drive units 31 and 37 may be supplied with the same musical tone signal and a monaural signal, or the electromagnetic driving units 31 and 37 may be singular, and the musical tone signal to be sent may be a monaural signal.

  The electromagnetic drive units 31 and 37 are arranged in the vicinity of the center of each long side of the rectangular sound board 8 or the vicinity of the short side of the rectangular sound board 8 in the vicinity of the vicinity of the center of the long side edge. It may be provided near the center of the edge or near the center of the short edge. Even in this case, the soundboard 8 is provided at a position in the vicinity of the edge of the soundboard 8 on the substantially symmetric axis of the soundboard 8.

  The electromagnetic drive units 31 and 37 may be attached not only near the center of each side of the soundboard 8 but also near the corner / corner. In this case, the sound volume may decrease, but the possibility of mutual interference between the electromagnetic drive units 31 and 37 is reduced. The electromagnetic drive units 31 and 37 may be separated along the width direction of the soundboard 8 and attached near the edge of the soundboard 8. In this case, the possibility of mutual interference between the electromagnetic drive units 31 and 37 increases, but the volume increases.

  The electromagnetic drive units 31 and 37 are attached to positions that are substantially symmetric with respect to the center of the soundboard 8, but may be attached to asymmetric positions. In this case, the distances from the center of the soundboard 8 to the electromagnetic drive units 31 and 37 are different. The electromagnetic drive units 31 and 37 may be attached at different heights from the bottom surface of the musical sound device. Thereby, one vibration / sound of the plurality of electromagnetic drive units 31 and 37 can be transmitted from the floor, and the other vibration / sound can be transmitted near the top or the center of the musical sound device.

  The electromagnetic drive units 31 and 37 are attached to the inner side of the lower front plate 18, but one or both of them may be attached to the inner side of the upper front plate 19. Mounting is easier when the inner side is one of the lower front plate 18 and the upper front plate 19.

  In addition to the soundboard 8, the electromagnetic drive units 31 and 37 may be attached to the bottom plate 4, the roof plate 5, the left main plate 6, the right main plate 7, the lower front plate 18, the upper front plate 19, and the like. The electromagnetic drive units 31 and 37 may be attached to the outside / outside surface of the soundboard 8 instead of the inside / inside surface of the soundboard 8.

  The musical sound signals L and R sent to the electromagnetic drive units 31 and 37 are at the same level, but may be at different levels. Thereby, the stereo sound formed by the electromagnetic drive units 31 and 37 is more emphasized.

  A part or all of the sound bars 9 of the sound board 8 may be omitted. The cross-sectional shape of the sounding board 9 of the sounding board 8 may be any shape as long as it is long, such as a square, a triangle, a polygon, a circle, an ellipse, a semicircle, a kamaboko, a fan, or a shape other than a line-symmetric shape. Good. The ends of the sounding bar 9 are thin, but the thickness of the sounding bar 9 may be uniform, the thin thick ones are alternately replaced, the center is thinned or thickened, the ends are thickened and thinned It may be curved or straight.

  The sound bars 9 may be attached at equal intervals, may be attached at unequal intervals, may be attached vertically / vertically, or may be attached horizontally / sideways. However, these may be mixed. The sounding bars 9 may be attached not to the outer surface / rear surface / rear surface of the sounding board 8, but also to the inner surface / front surface / front surface, or may be attached to both surfaces. In this case, the soundboard 8 is attached so as to cross the grid of the soundboard 8 in the vertical direction or obliquely.

  Each interval between the sounding bars 9 may be smaller than the diameter of the electromagnetic drive units 31 and 37. In this case, the electromagnetic drive units 31 and 37 are not positioned between the sounding rods 9. The electromagnetic drive units 31 and 37 may be attached to the center of the soundboard 8. The intervals between the sounding bars 9 may gradually become wider or gradually become narrower as the low-pitched musical tone in the keyboard 22 approaches the output instruction side. The sound bars 9 are parallel to each other, but some or all of them may not be parallel.

  The main body of the musical sound device (the bottom plate 4, the roof plate 5, the left main plate 6, the right main plate 7, the soundboard 8, the lower front plate 18, and the upper front plate 19) was a box shape, but an octahedron, a dodecahedron. Any shape such as a cylinder, a column, a taper, a trumpet, a sphere, or a curved solid may be used. The shape of the soundboard 8 may be any shape as long as it is flat, such as a circle, a polygon, and a ring, in addition to the square, and the material of the soundboard 8 or the soundbar 9 is made of metal, It may be made of paper, resin, glass, cloth, or ceramic.

  The soundboard 8 is flat, but may be curved in a concave shape or may be curved in a convex shape. Thereby, the waveform of the musical sound generated from the sound board 8 is not a plane wave but a spherical wave. The electromagnetic drive units (electromagnetic drive bodies) 31 and 37 may be replaced with speakers, tweeters, or the like, or may not be provided.

  In addition to the upright piano, the musical sound device to which the device of the present invention is attached may be any musical tone device as long as it has a keyboard such as a grand piano, an electronic piano, an electronic organ, a harpsichord, an electronic harpsichord, a keyboard harmonica, and an electronic keyboard harmonica. It may be a stringed instrument or an instrument other than a keyboard instrument. In this case, since the soundboard 8 is arranged in a substantially horizontal / substantially horizontal direction instead of a substantially vertical / substantially vertical direction, the electromagnetic drive units 31 and 37 are also mounted in a substantially horizontal / horizontal direction. Some or all of the sounding bars 9 can be omitted.

  Furthermore, the musical tone signal consisting of the above-mentioned multiple types of musical tone is composed of a plurality of types of musical instruments, timbres, tone pitches and / or touch tone signals, and is a tone signal that is polyphonically generated. Contains musical sounds in each frequency band, treble. Such musical tone signals include musical tone signals for the strings of the musical instruments themselves, pipes and striking parts, as well as musical tone signals for the soundboard 8 part. Only a musical tone signal may be used, or only a musical tone signal on the sound board 8 portion of an actual acoustic instrument may be used, and the musical tone signal composed of the plurality of types of musical tone may be a digital signal such as a PCM.

  Since the electromagnetic drive units 31 and 37 are mounted at positions shifted from the center of the soundboard 8, the vibration of the soundboard 8 will not resonate and the musical sound emitted from the soundboard 8 will be inadvertent. It won't be mutated, altered, distorted, or reduced in volume, making it closer to the sound of an actual acoustic instrument.

  The electromagnetic drive units 31 and 37 may be attached between the sound bars 9. Thereby, after the sound board 8 is vibrated by the electromagnetic drive units 31 and 37, the vibration of the sound board 8 is transmitted to the entire sound board 8 through the sound bars 9. Thus, no sound is transmitted to the sound board 8 and the sound can be transmitted uniformly to the entire soundboard 8.

  The intervals of the sound bars 9 are 10 cm to 30 cm, and may be unequal intervals instead of equal intervals. As a result, the sound bars 9 become vibration nodes, and the sound having the same frequency does not resonate between the sound bars 9. The musical sound emitted from the sound board 8 is inadvertently mutated. It will not be altered, distorted or reduced in volume. Such sounding rods 9 may be attached to the front side other than the rear side of the sounding board 8.

  The intervals between the sounding bars 9 may be non-uniform. As a result, there is no difference in the height of the musical sound emitted from the sound board 8 at each interval of the sound sticks 9, so that the vibration of the sound board 8 does not resonate. Will not inadvertently change or reduce the volume, making it closer to the sound of an actual acoustic instrument.

  The musical sound signals sent to the electromagnetic drive units 31 and 37 have the same magnitude / level / volume or frequency band, but one may be larger than the other, and one may be in the high range and the other in the low range. Good. Thereby, the volume distribution of the soundboard 8 can be partially changed, and the frequency band distribution of the soundboard 8 can also be partially changed.

(14) Effects of other inventions
[1] Converting a musical sound signal consisting of multiple types of musical sound into a mechanical change, touching the inside of the sound board of a keyboard instrument with a vibrating body that vibrates the sounding board and emits sound from the sounding board In the hole formed on the vertical lower front plate arranged under the horizontal shelf on the front surface of the keyboard instrument, it is inside the hole and is attached to the shelf. A method for producing or remodeling a musical sound device, wherein a sound generator that converts a musical sound signal composed of a plurality of types of musical sounds into sound and transmits the sound to the shelf board is attached to the mounting member. .

[2] A vibrating body that converts a musical sound signal composed of multiple types of musical sounds into mechanical changes, vibrates the soundboard that touches it, and radiates the sound from the soundboard, inside the soundboard of the keyboard instrument And a hole formed on the vertical lower front plate placed under the horizontal shelf on the front of the keyboard instrument. A mounting member fixed to the shelf board, and a sounding body that is attached to the mounting member, converts a musical sound signal composed of a plurality of types of musical sounds into sound, and transmits the sound to the shelf board. A modified musical sound device characterized by that.

[3] A mute mechanism that prohibits the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a number of strings with a hammer and produces different tones from each string. A signal output means for detecting a key operation and generating and outputting a musical sound signal corresponding to the operated key is attached to the keyboard instrument, and the sound generation of the string is prohibited by the mute mechanism, and the signal output means And a mute switching means for switching between allowing the signal output of the string to be permitted and allowing the sound generation of the string by the mute mechanism and prohibiting the signal output from the signal output means to be attached to the keyboard instrument, from the signal output means An exciter that converts the musical tone signal of this instrument into a mechanical change and vibrates the sounding board to radiate sound from the sounding board is attached in contact with the sounding board of the keyboard instrument. A method for producing or remodeling a musical tone apparatus, comprising: attaching a vibration body switching means for switching whether or not to output a signal from the signal output means to the vibration body.

[4] A mute mechanism that prevents the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a number of strings with a hammer to produce different tones from each string. And a signal output means for generating and outputting a musical tone signal corresponding to the operated key, and prohibiting the string from being produced by the mute mechanism and allowing the signal output from the signal output means to be permitted. And a silencing switching means for switching between allowing a string to be generated by the silencing mechanism and prohibiting signal output from the signal output means, and converting a musical sound signal from the signal output means into a mechanical change. A vibrating body that vibrates a sounding board and emits sound from the sounding board, and is attached in contact with a sounding board of a keyboard instrument, and the signal output means to the vibrating body from A musical tone apparatus comprising: an exciter switching means for switching whether or not to output a signal.

[5] The vibration exciter switching means is interlocked with or integral with the muffler switching means, prohibits the generation of strings by the silencing mechanism, allows signal output from the signal output means, and Switching between outputting a musical sound signal and allowing the string to be sounded by the mute mechanism and prohibiting signal output from the signal output means and not outputting a musical sound signal to the vibrating body. The musical sound device according to claim 4. Thereby, the sounding of the vibrating body and the sounding of the string can be linked, and the sounding of the vibrating body and the sounding of the string can be selected alternatively.

[6] The vibration exciter switching means is not interlocked with or separate from the mute switching means, and when the mute mechanism prohibits the sound of the string and allows the signal output from the signal output means, When the signal from the signal output means is output to the vibrating body, the sound of the string is allowed, and the signal output from the signal output means is prohibited, the signal from the signal output means is sent to the vibrating body. When the string generation is prohibited by the mute mechanism and the signal output from the signal output means is prohibited, the signal from the signal output means is not output to the vibrator, and the string generation is not performed. 5. The musical tone apparatus according to claim 4, wherein the signal from the signal output means is output to the vibrating body when the signal output from the signal output means is allowed. As a result, the sounding of the vibrating body and the sounding of the string can be made unlinked, and the sounding of the vibrating body and the sounding of the string can be selected at the same time, or neither of them can be selected at the same time.

[7] A reverberation resonance means for adding reverberation or resonance to the musical sound signal is added to the signal output means, and when the musical sound signal is output to the vibration exciter, the reverberation or resonance is not added. The reverberation or resonance is added by the reverberation resonance means to output the musical sound signal when the musical sound signal is output to the body and the musical sound signal is not output to the vibrating body. 5. A musical sound device according to 5 or 6. As a result, the vibrating body is in contact with the soundboard and can generate reverberation / resonance. However, since it is not possible to generate reverberation / resonance other than the vibrating body, this can be compensated.

[8] When the music signal is not output to the vibrator, reverberation or resonance is added by the reverberation resonance means and the music signal is output to the headphones. Based on the detection result of the detection means for detecting wearing of the headphones. 8. The reverberation or resonance is added by the reverberation resonance means when the headphones are attached, and the reverberation or resonance is not added by the reverberation resonance means when the headphones are not attached. Musical sound device. As a result, reverberation / resonance can be generated even with headphones that cannot generate reverberation / resonance, such as the entire musical sound device / keyboard instrument.

[9] A mute mechanism that prohibits the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a number of strings with a hammer and produces different tones from each string. A signal output means for detecting a key operation and generating and outputting a musical tone signal corresponding to the operated key is attached to the keyboard instrument, and the musical tone signal from the signal output means is converted into a mechanical change. The vibration body that vibrates the soundboard that touches and emits sound from the soundboard is attached in contact with the soundboard of the keyboard instrument, and the music signal from the signal output means is converted into music, A headphone that emits the sound without leaking to the outside is detachably attached to the sound device. The sound produced by the string, the sound produced by the vibrator, and the sound produced by the headphone A switching means for enabling sound and a vibration body or / and sound generation by headphones to perform these ensembles or to perform sound generation by vibration body and sound by headphones simultaneously to enable these ensembles A method for producing or remodeling a musical sound device characterized by being attached to the keyboard instrument.

[10] A silencer mechanism that prohibits the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that causes the strings to vibrate from each string by vibrating a number of strings with the hammer, A signal output means for generating and outputting a musical sound signal corresponding to the operated key, and converting the musical sound signal from the signal output means into a mechanical change, A vibrating body that oscillates and emits sound from the soundboard, which is attached in contact with the soundboard of the keyboard instrument, and converts the musical sound signal from the signal output means to musical sound, The headphone that emits the sound without leaking to the outside, the sound generation by the strings, the sound generation by the vibration body, and the sound generation by the headphones, the sound generation by the strings and the sound generation by the vibration body or / and the headphones Tone and wherein the simultaneously performed to enable these ensemble performed to enable these ensemble, or a sound by pronunciation and headphones by pressurized insulating member simultaneously.

[11] A hole formed on a vertical lower front plate disposed under a horizontal shelf on the front surface of the musical instrument, and an attachment member is fixed to the shelf inside the hole. A production method or modification method for a musical sound device, wherein a sounding body for converting a musical sound signal composed of a plurality of types of musical sounds into sound and transmitting the sound to the shelf board is attached to the attachment member.

[12] In the hole formed on the vertical lower front plate placed under the horizontal shelf on the front of the instrument, the mounting member is fixed inside this hole, and consists of multiple types of musical sounds A sounding body that converts a musical sound signal into sound is attached to the attachment member, and an inclined structure is formed on the attachment member, or the attachment member is obliquely fixed, so that the sound is directed toward the lower surface of the shelf plate obliquely above. A method for producing or remodeling a musical sound device, characterized in that the sounding body is attached to a position where the sound is emitted.

[13] A hole formed on a vertical lower front plate disposed under the horizontal shelf on the front surface of the instrument, and an attachment member that is inside the hole and is fixed to the shelf And a sound generator that is attached to the attachment member, converts a musical sound signal composed of a plurality of types of musical sounds into a sound, and transmits the sound to the shelf board.

[14] A hole formed on a vertical lower front plate arranged under the horizontal shelf on the front of the instrument, an attachment member fixed inside the hole, and attached to the attachment member A sounding body that converts a musical sound signal composed of a plurality of types of musical sound into a sound, and has an inclined structure on the mounting member, or by fixing the mounting member diagonally, The musical sound device is characterized in that the sounding body is attached to a position where the sound is emitted toward the sound.

[15] The musical sound device according to [3] or [4], wherein the attachment member extends to below the hole. This makes it difficult for the sound in the reverse phase / inner side of the sound generator and the sound on the back / inside of the soundboard to leak out, and the sound on the sounder surface / outside and the sound on the soundboard front / outside are not canceled out. The sound from the musical sound device is not reduced, it is difficult to hear the sound, the volume is balanced, and the sound does not feel strange.

[16] A substantially vertical soundboard arranged on the back of the musical instrument, and a musical sound signal composed of a plurality of types of musical sounds, which are attached to the soundboard, are converted into mechanical changes to drive the musical instrument soundboard. The tone generator that radiates the sound from the soundboard, the tone signal sent to the tone generator on the back of the instrument, and the tone signal sent to the tone generator on the front of the instrument are the same tone signal and have the same phase. 16. The musical sound device according to claim 13, wherein a sound-shielding body is provided between the sounding body and the vibration body or the soundboard.

  As a result, the sound on the back side / inside of the sound generator and the sound on the back side / inside of the sound board do not intensify the sound from the sound board. Is not canceled, the sound from the musical sound device is not reduced, the sound is not easily heard, the volume is balanced, and the sound does not feel strange.

[17] The musical tone apparatus according to claim 16, wherein the shield is attached to the periphery, back surface, left side surface, right side surface, top surface or bottom surface of the sounding body attached to the attachment member. As a result, it is possible to completely prevent the sound of the reverse phase / inner side of the sound generator and the sound of the back / inside of the soundboard from being sounded from the soundboard. It can be blocked and blocked, and the volume is balanced.

[18] The musical sound device according to claim 16 or 17, wherein the vibration exciter is attached to the shelf board. As a result, the shelf board is vibrated and the vibration is transmitted to the performer, and is synergistically mixed with the sound from the sounding body, so that the playing feel of the same sound and vibration as an acoustic instrument is obtained.

[19] The one or more of the vibrators are attached to the inside of the soundboard, and one or more soundbars are attached to the outside of the soundboard. Or the musical tone apparatus of 18. When the vibrating body is attached to the inside of the soundboard, it is radiated outside the sounding device even if the phase of the sound from the sounding board is not reversed with respect to the sound phase from the sounding body inside the sounding device. The sounds are never cancelled. If the sounding rod is attached to the outside of the soundboard, the radiation balance in all directions of the sound radiated to the outside of the sounding board will be improved and cancellation will be reduced, and the sounding rod will be attached to the inside of the sounding board. If this is the case, the radiation balance in all directions of the sound radiated to the inside of the soundboard will be improved and cancellation will be reduced, and the volume will be balanced.

[20] The present invention is characterized in that a vibration absorbing body that absorbs vibration / sound of the sounding body and does not transmit the vibration / sound of the sounding body to the shielding body is interposed between the shielding body and the sounding body. The musical sound device according to claim 16, 17, 18 or 19. As a result, the sound of the opposite phase from the back surface of the sounding body is not diffused, and the sound of the normal phase from the surface of the sounding body is not canceled.

[21] A sound board of a flat musical instrument that oscillates and radiates sound, and a sound board or grain of each part of the sound board that is aligned in substantially the same direction, and a plurality of soundboards attached to the surface of the sound board A plurality of sounding bars each having a longitudinal direction of each sounding bar substantially aligned in a direction different from the direction of the mesh or grain of the sounding board. A vibration signal that converts a musical sound signal composed of various types of musical sounds into mechanical changes and drives the sound board of the instrument to emit sound from the sound board. The force with which the vibrator is abutted against the soundboard is substantially the same, and in the support that abuts the vibrator against the soundboard, the other end of the support The longer the length to the end, the more flexible the body is interposed between the vibrating body and the soundboard. Production method or processing method of the musical tone apparatus, wherein a flexible member is not interposed.

[22] A soundboard of a flat musical instrument that oscillates and emits sound, and a soundboard or grain of each part of the soundboard that is aligned in substantially the same direction, and a plurality of soundboards attached to the surface of the soundboard A plurality of sounding rods whose longitudinal direction is substantially aligned with a direction different from the direction of the lattice or the grain of the sounding plate, and a musical sound signal composed of a plurality of types of musical sounds. A plurality of vibrators that drive the soundboard of the instrument to emit sound from the soundboard, and support the vibrator at one end, and are fixed to the instrument body at the other end. The force with which the vibrating body comes into contact with the soundboard is substantially the same, and the length of the support body from one end to the other end of the support body that makes the vibration body contact with the soundboard is long. As a result, a flexible body is interposed between the vibrating body and the soundboard, and the shorter the length is, the less flexible body is interposed. Musical tone apparatus according to claim.

[23] The musical sound device according to [22], wherein the flexible body becomes thicker as the length from one end to the other end of the support becomes longer. Here, the longer the length from one end of the support body to the other end, the more difficult it is for the vibration of the soundboard to follow the vibration of the vibration exciter, but the delay tends to be absorbed by the intervening flexible plate. Thus, the abnormal resonance sound generated when the soundboard and the vibrating body collide with each other is not generated. Therefore, absorption of this delay by the intervening flexible plate is realized continuously / stepwise / steplessly.

[24] The force with which the vibrating body is brought into contact with the soundboard is the own weight of the vibrating body, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, The musical sound device according to claim 22 or 23, wherein the musical sound device is larger than 10 times, more than 10 times, or more than several tens times, and smaller than the pressure applied to the soundboard by the piece in the instrument body. As a result, when the force with which the vibrating body abuts on the sounding board is larger than the weight of the vibrating body, the vibrating force of the vibrating body is reliably transmitted to the sounding board, and the sounding board and the vibrating body are mutually connected. Abnormal resonance generated by collision will not occur. In addition, if the force with which the vibrating body comes into contact with the soundboard is smaller than the pressure applied to the soundboard of the piece in the instrument body, the vibration / sound of the string is prevented from being transmitted to the soundboard through the piece, causing trouble. In addition to the vibrations / sounds generated by the vibrating body, the vibrations / sounds generated by the strings are reliably sounded / radiated from the soundboard without being altered.

[25] The support having a long length from one end to the other end is attached to the upper surface of the bottom plate of the keyboard instrument, and the support having a short length from the one end to the other end is a lower surface of the shelf board of the keyboard instrument. 25. The musical sound device according to claim 22, 23 or 24, wherein the musical sound device is attached to a musical instrument. As a result, the sound radiation position from the vibrating body can be made close to the keyboard or shelf, and the finger / hand playing / operating the keyboard can feel the sound radiation / vibration, A feeling close to that of an actual performance can be obtained. In addition, the support, bottom plate, shelf plate, left main plate, right main plate, and the like are interposed between the vibration bodies of the respective supports, and the vibration / sound of one vibration body is the other vibration body. Therefore, abnormal resonance noise is not generated, and the sound quality of the vibrating body can be kept high.

[26] The musical sound device according to [22], [23], [24] or [25], wherein a part of the plurality of vibrators is suspended from above and the other part is lifted from below. As a result, the sound radiation position from the vibrating body can be made close to the keyboard or shelf, and the finger / hand playing / operating the keyboard can feel the sound radiation / vibration, A feeling close to that of an actual performance can be obtained. In addition, the support, bottom plate, shelf plate, left main plate, right main plate, and the like are interposed between the vibration bodies of the respective supports, and the vibration / sound of one vibration body is the other vibration body. Therefore, abnormal resonance noise is not generated, and the sound quality of the vibrating body can be kept high.

[27] The plurality of vibration exciters are spaced apart along the longitudinal direction of the soundboard, and can be attached in the vicinity of an edge of the soundboard. The musical sound device described. As a result, a plurality of vibrators approach each other and vibrations / sounds from the plurality of vibrators interfere with each other, so that the musical sound emitted from the soundboard is inadvertently mutated, altered or distorted, and the volume is reduced. Will not be lost.

[28] The musical sound device according to [22], [23], [24], [25], [26] or [27], wherein the plurality of vibration exciters are attached at substantially the same height from the bottom surface of the musical sound device. As a result, each vibration / sound from the vibrating body is reflected on the floor and the bottom plate of the musical sound device, so that there is no unbalance in the sound field / sound atmosphere, and each vibration / sound from the vibrating body is not It is emitted evenly on the left and right.

[29] The sound board has a line-symmetric shape, and the vibration body is attached at a position substantially on the axis of the line symmetry. 26, 27, or 28. Thereby, each vibration / each sound from the vibrating body is efficiently transmitted to the center of gravity / center of the soundboard, and the sound volume of the soundboard is not reduced.

[31] A sound board of a flat plate-like musical instrument that emits sound by being oscillated, and has a line-symmetric sound board in which the lattices or the grain of each part of the sound board are aligned in the same direction, and the sound board surface To a musical sound device comprising a plurality of sounding rods to be attached, each sounding rod having a longitudinal direction substantially aligned with a direction different from the direction of the lattice or the grain of the sounding board. A vibration body that converts a musical sound signal composed of a plurality of types of musical sounds into a mechanical change and drives the soundboard of the musical instrument to radiate sound from the sounding board is substantially the axis of symmetry of the soundboard. A position near the edge of the soundboard on the line, and the direction along the grid or grain of the soundboard is almost equiangular from the direction of the axis and the edge of the soundboard. The direction along each longitudinal direction of the bar is such that the axis and the direction of the edge of the soundboard are almost equiangular. Production method or processing method of a tone and wherein the attachment to the surface of the soundboard.

[32] A sound board of a flat plate-like musical instrument that emits sound by being oscillated, and has a line-symmetric sound board in which parts of the sound board are aligned in substantially the same direction, and a surface of the sound board. A plurality of sounding rods to be mounted, wherein each sounding rod has a longitudinal direction that is substantially aligned with a direction different from the direction of the soundboard or grain of the sounding plate, and a musical sound comprising a plurality of types of musical sounds A vibrating body that converts a signal into a mechanical change and drives the soundboard of the musical instrument to radiate sound from the soundboard, the edge of the soundboard being substantially symmetric about the axis of the soundboard The direction along the grid or grain of the soundboard is substantially equiangular from the axis and the edge of the soundboard, and the direction along each longitudinal direction of each soundbar Is attached to the surface of the soundboard at a position that is almost equiangular from the axis and the edge of the soundboard. Tone device being characterized in that a body.

[33] The musical sound device according to claim 32, wherein the vibration exciter is attached at a position substantially equidistant from each portion of the piece on which a plurality of strings of the musical sound device are mounted. Thereby, the vibration / sound from the vibrating body is uniformly transmitted to each string through the piece, and is not biased to a part of the strings, so that the vibration / sound by the vibrating body and the resonance of the string can be harmonized. .

[34] A sound board of a flat musical instrument that oscillates and emits sound, and a sound board or a grain of each part of the sound board aligned in substantially the same direction, and a plurality of sound boards attached to the surface of the sound board A plurality of sounding bars each having a longitudinal direction of each sounding bar substantially aligned in a direction different from the direction of the mesh or grain of the sounding board. A plurality of vibrators that convert a musical sound signal composed of various musical sounds into a mechanical change and drive the soundboard of the musical instrument to emit sound from the soundboard, along the grid or grain of the soundboard. A production method or a processing method of a musical sound device, characterized by being attached to the surface of a sound board at a position shifted from the same line and at a position shifted from the same line along each longitudinal direction of each of the sounding bars.

[35] A sound board of a flat musical instrument that oscillates and emits sound, and a sound board or grain of each part of the sound board that is aligned in substantially the same direction, and a plurality of soundboards attached to the surface of the sound board A plurality of sounding rods whose longitudinal direction is substantially aligned with a direction different from the direction of the lattice or the grain of the sounding plate, and a musical sound signal composed of a plurality of types of musical sounds. A plurality of vibrators for driving the sound board of the musical instrument to emit sound from the sound board, wherein the position is shifted from the same line along the grid or grain of the sound board, and A musical sound device comprising: a plurality of vibrators attached to the surface of the sound board at a position shifted from the same line along each longitudinal direction of each sound bar.

[36] The musical sound device according to [35], wherein the plurality of vibration exciters are spaced apart along the longitudinal direction of the soundboard and are mounted near the edge of the soundboard. As a result, a plurality of vibrators approach each other and vibrations / sounds from the plurality of vibrators interfere with each other, so that the musical sound emitted from the soundboard is inadvertently mutated, altered or distorted, and the volume is reduced. Will not be lost.

[37] The musical sound device according to [35] or [36], wherein the plurality of vibration exciters are mounted at positions separated from each other as much as possible across the substantial center of the soundboard. As a result, a plurality of vibrators approach each other and vibrations / sounds from the plurality of vibrators interfere with each other, so that the musical sound emitted from the soundboard is inadvertently mutated, altered or distorted, and the volume is reduced. Will not be lost.

[38] The musical sound device according to [35], [36] or [37], wherein the vibration exciters are attached to positions substantially symmetrical with respect to the center of the soundboard. As a result, each vibration / sound from the vibrating body is transmitted to the soundboard without any imbalance in volume and sound quality, and each vibration / sound from the vibrating body is evenly transmitted to the soundboard. it can.

[39] The musical tone device according to claim 35, 36, 37 or 38, wherein the plurality of vibration exciters are attached at substantially the same height from the bottom surface of the musical tone device. As a result, each vibration / sound from the vibrating body is reflected on the floor and the bottom plate of the musical sound device, so that there is no unbalance in the sound field / sound atmosphere, and each vibration / sound from the vibrating body is not It is emitted evenly on the left and right.

[40] The soundboard has a line-symmetric shape, and the vibrating body is mounted at a position substantially on the axis of the line-symmetry. Or the musical tone apparatus of 39. Thereby, each vibration / each sound from the vibrating body is efficiently transmitted to the center of gravity / center of the soundboard, and the sound volume of the soundboard is not reduced.

[41] The sounding body is attached to the inside of the musical sound device in the soundboard, and the sounding rod is attached to the outside of the musical sound device in the soundboard. 37, 38, 39 or 40. Thereby, it can prevent that a vibrating body hits a sounding stick. In addition, the vibrating body can be hidden from the outside of the musical sound device, and the appearance is not impaired. In addition, the vibrating body can be attached to a position corresponding to the sounding bar without contacting the sounding bar.

[42] The musical sound device of [32], [35], [36], [37], [38], [39], or [41], wherein the phases of the musical sound signals sent to the plurality of vibrators are different from each other. Thereby, a sound with a different phase can be emitted by one soundboard, and stereo sound can be formed. Moreover, since the sound from the soundboard is a plane wave, the range in which a sound image can be formed can be widened instead of a single point.

[43] The musical tone according to claim 32, 35, 36, 37, 38, 39, 40, 41 or 42, wherein the phases of the musical tone signals sent to the plurality of vibrators are the same. apparatus. Thereby, the sound from the soundboard strengthens and becomes louder.

[44] 32, 35, 36, 37, 38, wherein the phase difference of each of the musical tone signals sent to the plurality of vibrators increases as the distance between the plurality of vibrators increases. 39, 40, 41, 42 or 43. Thereby, it can change in steps from the state which increases a sound volume synergistically to the state which forms a stereophonic sound.

  Synchronize / disengage any combination of string sound / string mute, music signal output / non-output, output / non-output to the vibrator, and headphone output / non-output. Switching of string sound generation / string muffing of the mute switch lever 179 (mute switch means), power on / off of the drive circuit (signal output means), and changeover switches 74L, 75L, 76L, 74R, 75R, 76R (vibration) Output / non-output to the body switching means) and the output / non-output of the plugs 79L and 79R of the headphone 78 are partly or entirely interlocked / integrated, or partly or entirely not interlocked / independent / separate Or

  For string 137 pronunciation, musical tone signal output, pronunciation from electromagnetic drive units 31, 37, etc., and pronunciation from headphones 78, everything from sound production / output to any sound production / output, no sound production / output silence Various performance states can be realized.

  The sound from the sound generator hits the shelf on the front of the instrument, and the shelf and the keyboard on the shelf vibrate, giving the same playing feel as an acoustic instrument. Mounting brackets 54 and 54 having an L-shaped cross section are fixed to the inner surfaces of both ends of the mounting plate 53, and the speakers 51 and 51 are mounted to the central inner surface of the mounting plate 53. The folding angles of the mounting brackets 54 and 54 are slightly acute, the mounting plate 53 is fixed obliquely, and the sound from the speakers 51 and 51 is radiated toward the lower surface of the shelf plate 14 obliquely above.

  Depending on the length from one end to the other end of the support body that supports the vibration body, a flexible body is not interposed between the vibration body and the soundboard, and abnormal noise is prevented. The longer the length from one end to the other end of the support that supports the vibrating body is, the more flexible body is interposed between the vibrating body and the soundboard, and the shorter, the less flexible body is interposed. Thereby, the abnormal sound between a soundboard and a vibration body is prevented.

  The flexible plate 21 is attached to the excitation surface of the electromagnetic drive unit (vibration body) 37 attached to the tip of the triangular fitting 36 (support), and attached to the electromagnetic drive unit 31 at the tip of the L-shaped fitting 32. I can't. The flexible plate 21 has cushioning properties and is interposed between the electromagnetic drive unit 37 (31) and the soundboard 8.

  Thereby, as the length of the L-shaped metal fitting 32 and the triangular metal fitting 36 is longer, the vibration of the sounding board 8 is less likely to follow the vibration of the electromagnetic drive unit 37 (31), but is more likely to be delayed. This delay is absorbed by 21 and no abnormal resonance sound is produced by the sound board 8 and the electromagnetic drive unit 37 (31) colliding with each other. Either one or both of the triangular bracket 36 and the L-shaped bracket 32 are attached.

  The direction of the soundboard's grid is equiangular from the line symmetry axis of the soundboard and the soundboard's edge, and the direction of each soundbar is equiangular from this axis and the soundboard's edge A vibration body is attached to the vibration body, and vibration / sound from the vibration body is not biased along the grid of the soundboard and a part of the soundbar.

  The electromagnetic drive unit 31 is attached to a position in the vicinity of the edge of the soundboard 8 on the substantially symmetrical axis A of the soundboard 8. The grid direction P of the soundboard 8 is substantially equiangular from the axis E and the edge direction AB of the soundboard 8. The direction S of each sounding bar 9 is substantially equiangular from this axis E and the direction AB of the edge of the sounding board 8.

  With such an equiangular position, the vibration / sound from the electromagnetic drive unit 31 is not biased along the grid of the soundboard 8 and is not biased along a part of the soundbar 9. However, the sound is uniformly transmitted to the entire sound board 8 without being biased to a part of the sound board, and the alteration / distortion of the musical sound from the sound board 8 is eliminated.

  A vibrating body is attached to the surface of the soundboard at a position shifted from the same line along the longitudinal direction of the soundboard and the sounding rod, and vibration / sound from the sounding body is Unbiased along part. The left electromagnetic drive unit 31 is attached to the left end (right end in FIG. 3) of the soundboard 8 and immediately below the shelf board 14. The right electromagnetic drive unit 37 is attached to the right end (left end in FIG. 3) of the soundboard 8 and at a substantially intermediate position between the shelf plate 14 and the bottom plate 4.

  The electromagnetic drive units 31 and 37 are separated along the longitudinal direction of the soundboard 8 and are attached near the left and right edges of the soundboard 8. This prevents the musical sounds emitted from the soundboard 8 from interfering with each other from being inadvertently mutated, altered, distorted, or reduced in volume.

The longitudinal cross section seen from the left of a musical sound apparatus is shown. A longitudinal section viewed from the right side of the musical sound device is shown. The back of a musical tone apparatus is shown. The front of a musical sound apparatus is shown. The attachment structure of the electromagnetic drive unit (electromagnetic drive body / vibration body) 31 is shown. The attachment structure of the electromagnetic drive unit (electromagnetic driver / vibrator) 37 is shown. The drive circuit (musical sound control circuit) of the electromagnetic drive units 31 and 37 is shown. The attachment position of the electromagnetic drive unit (electromagnetic driver / vibrator) 31 is shown. A longitudinal section of a speaker 51 (sound generator), a mounting plate 53, etc. is shown. A longitudinal section of a tweeter 55 (sound generator), a mounting plate 53, etc. is shown. The cross sections of the speaker 51, the tweeter 55 (sound generator), the mounting plate 53, and the like are shown. The longitudinal cross section of 2nd Example, such as the speaker 51 (sound-producing body) and the attachment board 53, is shown. The longitudinal cross section of 3rd Example, such as the speaker 51 (sound-producing body) and the attachment board 53, is shown. According to the switching of the silencer switching lever 179 (silencer switching means), power on / off of the drive circuit (signal output means), changeover switches 74L to 76R (vibrator switching means), and the insertion switches 79L and 79R of the headphone 78. Each performance state is shown. The side cross section of the piano at the time of string striking is shown. The side section of the piano at the time of electronic pronunciation is shown. A switching mechanism 105 is shown. A musical tone circuit 80 is shown.

Explanation of symbols

1 ... frame (support), 2 ... inner support,
3 ... pin plate, 4 ... bottom plate,
5 ... Roof plate, 6 ... Left parent plate,
7 ... Right parent plate, 8 ... Soundboard,
9 ... Sound stick, 10 ... Frame,
11 ... strings (piano wire), 12 ... front foundation,
13 ... shelf holders, 14 ... shelf boards,
15 ... keyboard, 16 ... arms,
17 ... Keyboard lid, 18 ... Lower front plate,
19 ... Upper front plate, 20 frames, 21 ... Flexible plate (flexible body)
31, 37 ... Electromagnetic drive unit (electromagnetic drive body / vibrator),
32 ... L-shaped bracket (support) , 33 ... Bolt,
34 ... Nut, 35 ... Adjustment knob,
36 ... Triangular bracket (support) , 41 ... Panpot circuit,
42L: Left DSP filter, 42R: Right DSP filter,
43L ... Left 4 band equalizer, 43R ... Right 4 band equalizer,
44L ... Left phase control circuit, 44R ... Right phase control circuit,
45L ... Left amplifier, 45R ... Right amplifier,
48 ... mounting cushion, 49 ... AMP board (printed board),
51 ... Speaker (sound generator), 52 ... Hole, 53 ... Mounting plate (mounting member),
54 ... Mounting bracket (mounting member), 55 ... Tweeter (sounding body),
56 ... Speaker cushion (vibrator), 57 ... Box cover (shield),
58 ... Sound emission hole, 59 ... Cloth, 61 ... Panpot circuit,
62L: Left DSP filter, 62R: Right DSP filter,
63L: Left DSP filter, 63R: Right DSP filter,
64L ... Left DSP filter, 64R ... Right DSP filter,
65L ... Left 4 band equalizer, 65R ... Right 4 band equalizer,
66L ... Left 4-band equalizer, 66R ... Right 4-band equalizer,
67L ... Left 4-band equalizer, 67R ... Right 4-band equalizer,
68L ... left phase control circuit, 68R ... right phase control circuit,
69L: left phase control circuit, 69R: right phase control circuit,
70L: left phase control circuit, 70R: right phase control circuit,
71L ... Left amplifier, 71R ... Right amplifier,
72L ... Left amplifier, 72R ... Right amplifier,
73L ... Left amplifier, 73R ... Right amplifier,
74L, 75L, 76L, 74R, 75R, 76R ... changeover switch (vibrator switching means),
77L, 77R ... reverberation resonance circuit, 78 ... headphones,
79L, 79R ... plug-in switch (vibrator switching means),
80: musical tone circuit, 81, 82: light emitting section (signal output means),
83, 84 ... light receiving part (signal output means), 85 ... scan circuit (signal output means),
86 ... CPU, 87 ... ROM,
88 ... RAM, 90 ... tone generator,
81, 82, 83, 84, 85 ... key operation detecting means,
86, 87, 88, 90 ... musical tone signal generating means,
91 ... Sound system, 92 ... MIDI circuit,
92 ... Power supply circuit, 93 ... Power switch (silence switching means),
101 ... String striking mechanism, 102 ... Damper mechanism,
103 (162, 163, 164, 165) ... Jack prohibition mechanism (silencer mechanism),
104 (172, 173, 174, 175) ... Hammer prohibition mechanism (silencer mechanism),
105 (168, 169, 176, 177, 178, 179) ... switching mechanism (mute switching means),
111 ... shelf, 112 ... key,
125 ... Balance pin, 127 ... Whippen,
128 ... Whippen Frenzy, 129 ... Center rail,
130 ... Jack, 130a ... Projection,
131 ... Jack spring, 132 ... Regulating button,
133 ... hammer bat, 134 ... hammer shank,
135 ... Batt Frenzy, 136 ... Hammerhead,
137 ... strings, 138 ... hammer rails,
139 ... buffer part, 140 ... backstop,
141 ... Back check, 144 ... Damper lever,
147 ... Damper head, 149 ... Damper lever stop rail,
161: Action bracket, 162: Rotating shaft,
163 ... support link, 164 ... support shaft,
165: Jack shift roller (silencer mechanism), 166: Drive link,
168 ... Spring, 169 ... Stopper,
172 ... Rotating shaft, 173 ... Support link (silencer mechanism),
174 ... support shaft, 175 ... hammer stop roller (silencer mechanism),
176 ... Drive link (silencer mechanism), 177 ... Switching wire (silencer switching means),
178 ... wire tube, 179 ... mute switching lever (mute switching means).

Claims (5)

A silencer mechanism that prevents the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a large number of strings corresponding to multiple keys with a hammer to produce different tones from each string. When,
A signal output means for detecting operation of the plurality of keys and generating and outputting a musical sound signal corresponding to the operated key;
The musical sound signal from this signal output means is converted into a mechanical change, and the drive part of this mechanical change itself does not emit sound, but the sounding board is vibrated and the sound is emitted from the sounding board. A vibrating body attached in contact with the surface of the sound board of the keyboard instrument,
A sound by the strings, the pressurized isolator per the sound by the musical sound apparatus characterized by enabling these ensemble performs a pronunciation and by pronunciation and pressurized isolator according strings simultaneously. Prohibiting the sound generation of the string by the mute mechanism and allowing the signal output from the signal output means, and allowing the sound generation of the string by the mute mechanism and prohibiting the signal output from the signal output means. Further comprising a mute switching means for switching,
Furthermore, the vibrator further comprises a vibrator switching means for switching whether to output a signal from the signal output means to the vibrator,
The vibrating body switching means is interlocked with or integrated with the muffling switching means,
Prohibiting string sounding by the mute mechanism, allowing signal output from the signal output means to output a musical sound signal to the vibrating body, and allowing sound generation of the string by the mute mechanism, 2. The musical sound device according to claim 1, wherein the musical sound device is switched between prohibiting signal output from the output means and not outputting the musical sound signal to the vibrating body. Prohibiting the sound generation of the string by the mute mechanism and allowing the signal output from the signal output means, and allowing the sound generation of the string by the mute mechanism and prohibiting the signal output from the signal output means. Further comprising a mute switching means for switching,
Furthermore, the vibrator further comprises a vibrator switching means for switching whether to output a signal from the signal output means to the vibrator,
The exciter switching means is not interlocked with or separate from the muffling switching means,
When the sound generation of the string is prohibited by the silencing mechanism and the signal output from the signal output means is allowed, the signal from the signal output means is output to the vibrator, the sound of the string is allowed, When prohibiting the signal output from the signal output means, do not output the signal from the signal output means to the vibration exciter, or prohibit the sound generation of the string by the silencing mechanism, and output the signal from the signal output means. When prohibiting, the signal from the signal output means is not output to the vibration exciter, the sound generation of the string is allowed, and the signal output from the signal output means is allowed to be output to the vibration exciter. 2. The musical sound device according to claim 1, wherein a signal from the signal output means is output. A silencer mechanism that prevents the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a large number of strings corresponding to multiple keys with a hammer to produce different tones from each string. Install,
A signal output means for detecting operation of the plurality of keys and generating and outputting a musical sound signal corresponding to the operated key is attached to the keyboard instrument,
The musical sound signal from this signal output means is converted into a mechanical change, and the drive part of this mechanical change itself does not emit sound, but the sounding board is vibrated and the sound is emitted from the sounding board. Install the body in contact with the surface of the keyboard instrument soundboard,
And wherein a sound by the strings, per a sound by the pressure-isolator, that performs a sound and by pronunciation and pressurized isolator according strings simultaneously mounting the switching means to enable these ensemble in the keyboard instrument To produce musical sound equipment. A silencer mechanism that prevents the hammer from vibrating the strings and causing the strings to vibrate from the action mechanism of a keyboard instrument that vibrates a large number of strings corresponding to multiple keys with a hammer to produce different tones from each string. Install,
A signal output means for detecting operation of the plurality of keys and generating and outputting a musical sound signal corresponding to the operated key is attached to the keyboard instrument,
The musical sound signal from this signal output means is converted into a mechanical change, and the drive part of this mechanical change itself does not emit sound, but the sounding board is vibrated and the sound is emitted from the sounding board. Install the body in contact with the surface of the keyboard instrument soundboard,
And wherein a sound by the strings, per a sound by the pressure-isolator, that performs a sound and by pronunciation and pressurized isolator according strings simultaneously mounting the switching means to enable these ensemble in the keyboard instrument To modify the musical sound device.

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