Musical instrument keyboard

Abstract

The invention relates to musical instruments and can be used in keyboard musical instruments. The technical result consists in providing reliability and maintainability by virtue of a minimal sufficient number of elements of keyboard devices designed to broaden the expressive possibilities of musical instruments. This result is achieved in that a musical instrument keyboard comprises a housing in the form of an upper part and a lower part between which keys are mounted with the aid of articulated rocking levers, wherein such a lever is mounted through a through-opening in the upper part of the housing, the upper end of the rocking lever rests on the housing from above and is equipped with a roller to which a string is mounted by one end such that the string can be tensioned when the key is depressed and released when the key returns to its initial non-depressed position, and a spring is tensioned between the lever and the rear wall of the housing to allow the key to return to its initial position when no longer depressed.

Description

[0001] KEYBOARD FOR MUSICAL INSTRUMENT

[0002] DESCRIPTION

[0003] The invention relates to musical instruments and can be used in keyboard musical instruments [G10C 3 / 12, G10C 3 / 16, G10C 1 / 00, G10C 3 / 00].

[0004] The main means of expression in music include mode, harmony, rhythm, tempo, dynamics, timbre, articulation, intonation, etc. Increasing the degrees of freedom of the keyboard devices of musical instruments provides variations in timbre, tone, pitch and volume of sound, generated in accordance with variations in the static load when touching the keys.

[0005] A PIANO TONE REGULATOR is known from the prior art [JP 2008008971 A, published: 17.01.2008], comprising a mechanism for striking a string to press a key, a variable static load device and an electronic device for adjusting the musical tone, wherein the variable static load device is made of a plurality of weight levers and has a long shape, one end part of each of the weight levers in the longitudinal direction above one key corresponding to each of the weight levers among the plurality of piano keys can rotate in the vertical direction and contact the upper surface of the corresponding key on the side opposite the playing side, under the action of its own weight.

[0006] A KEYBOARD APPARATUS is known from the prior art [US 7297854 B2, published: 20.11.2007], comprising a support element, a plurality of keys, each of which has a drive portion and is located on said support element in such a way that each key can rotate around its base end portion, wherein said keys comprise a plurality of white keys and a plurality of black keys, a plurality of supports for rotary movement, secured to said support element, and a plurality of mass bodies provided in such a way, which are respectively connected to said supports for rotary movement, and each of which has a driven portion, wherein said mass bodies are located with the possibility of rotation around corresponding rotary movement supports, and comprise masses connected to the white keys, which are connected to said white keys, respectively, and mass bodies connected to the black keys, which are connected to said black keys,accordingly, wherein said driving part of each key drives said driven part of the associated one of said mass bodies in accordance with the rotary movement of said key, whereby said associated mass body rotates about said associated support for rotary movement, and wherein said driven part of each mass body associated with the white key and said driven part of each mass body associated with the black key are in the same longitudinal position, and at the same time the distance between said driven part of said mass body associated with the black key and said support of rotary movement associated with it is greater than the distance between said driven part of said mass body associated with the white key and said support of rotary movement associated with it.,

[0007] A KEYBOARD DEVICE is known from the prior art [WO 2017164232 A1, published: 28.09.2017], comprising a key, a guide that regulates the direction in which the key moves, wherein the guide is located in three or more places that are not aligned in a straight line when viewed along the direction of the key scale, and the guide is in sliding contact with the key from the direction of the scale, and a connecting part connecting the key to a frame on the back side of the key from the guide, wherein the connecting part includes a rod-shaped flexible element.

[0008] The prior art discloses a KEYBOARD DEVICE FOR MUSICAL INSTRUMENTS [JPH 0442198 A, published: 12.02.1992], which has a design capable of moving in a direction independent of the direction of movement, with the center on the supporting element of the key due to pressing.

[0009] The closest in technical essence are the METHOD AND DEVICE FOR PRODUCING MUSICAL INSTRUMENTS CONTROLLED BY A KEYBOARD, WITH A CHANGE IN TONE CONTROLLED BY PITCH VARIATIONS, ETC. [GB 1573233 A, published: 20.08.1980], having flat longitudinally elongated keys for manual pressing for the purpose of reproducing sounds, means for centering and positioning the keys, including, among other things, a lever connected to each mentioned key, a spring connected to the lever by means of a first fastener and to the upper part of the body by means of a second fastener. The main technical problem of the analogues and the prototype is the complexity of the system for connecting the components of the devices, which does not ensure operational manufacturability, reliability and ergonomics of use.

[0010] The main objective of the invention is to eliminate the shortcomings of analogues and the prototype.

[0011] The technical result consists in ensuring reliability and operational manufacturability due to the minimum sufficient number of elements of keyboard devices, made to expand the expressive capabilities of musical instruments.

[0012] The specified technical result is achieved due to the fact that the keyboard for a musical instrument, comprising a housing made in the form of upper and lower parts, between which keys are mounted using articulated rocking levers, wherein the lever is mounted through a through hole in the upper part of the housing, the upper end of the rocking lever, resting on top of the housing, is provided with a roller, on one of whose ends a string is mounted with the possibility of its tension when the key is pressed and weakened when the key returns to its original position before pressing, a spring, tensioned between the lever and the rear wall of the housing with the possibility of returning the key to its original position after it stops being pressed.

[0013] In particular, the through hole in the upper part of the housing, through which the lever is mounted, is designed with the possibility of limiting the angular movement of the lever.

[0014] A keyboard for a musical instrument comprising a housing in which keys are mounted protruding outward with their proximal ends, made with the possibility of reciprocating movement in the longitudinal and transverse directions, a tube with a movable slide made with the possibility of regulating the air column and a valve providing the possibility of opening and closing the tube, a lever mounted through a through hole in the upper part of the housing and pivotally connected to each of the keys and spring-loaded to the housing by means of two springs directed in opposite directions from the lever to the housing, the upper end of the lever is connected to the slide for transmitting reciprocating movement to it in the longitudinal direction, the lower end of the lever is pivotally fixed to the key, the distal end of the key is mounted through a bar to the valve for transmitting reciprocating movements to it in the vertical and transverse directions.

[0015] In particular, the upper part of the body is made in a U-shape.

[0016] In particular, the connection between the key and the bar is made using an eye in the bar and a pin with a head.

[0017] A keyboard for a musical instrument comprising a housing made in the form of an upper and lower part, between which keys are mounted with the possibility of moving them in the longitudinal direction due to the angular movement of the lever using rolling levers, the rolling axis of which is made in the middle part of the lever, wherein the lever is mounted through a through hole in the upper part of the housing, a roller is mounted on the axis of rotation of the lever, on which a string rests, mounted with its end to the string tension bar, the upper end of the lever is connected by a spring to the spring tension bar with the possibility of changing the rigidity of the key, which is pivotally mounted to the lower end of the lever, the lever is provided with a tension roller interacting with the string on its section from the roller on which the string rests and the string tension bar,wherein the hinged connection of the key and the lever is designed with the possibility of vertical reciprocating movement of the key along the lever for interaction with the proximal ends of the potentiometers mounted in the lower part of the body due to the hinged connection made in the lower part of the lever.

[0018] In particular, the string tension bars and springs are equipped with screws mounted through the wall of the body, the heads of which are located on the outside.

[0019] In particular, a protrusion is made in its lower part to allow the key to interact with the potentiometer.

[0020] A keyboard for a musical instrument comprising a housing made in the form of an upper and lower part, between which keys rest on springs mounted in the lower part of the housing, on the distal ends of which counterweights are mounted, ensuring the displacement of the center of gravity of the keys to the distal end, wherein the keys are made with the possibility of displacement relative to the spring axis when acting on the proximal end of the key and back, after the end of the action on the key due to the counterweight, wherein in the upper part of the housing for each key there are V-shaped recesses, ensuring the sliding of the keys in them when they are displaced, in the lower part of the keys on the proximal end there are sensors mounted, interacting during displacement with their corresponding parts, mounted on the lower part of the housing under the sensors and causing the appearance of an electrical signal, converted into a sound signal.

[0021] In particular, the spring is connected to the key and to the lower part of the body through supports.

[0022] Brief description of the drawings.

[0023] Fig. 1 shows a top view of the claimed device.

[0024] Fig. 2 shows a view of the claimed device in section AA.

[0025] Fig. 3 shows a sectional view of the claimed device.

[0026] Fig. 4 shows a view of the claimed device in section AA, where the black key 4 is pressed and extended forward relative to the body.

[0027] Fig. 5 shows a top view of the claimed device, where the black key 4 is pressed and extended forward relative to the body.

[0028] Fig. 6 shows a view of the claimed device in section AA, where the black key 4 is pressed and moved back relative to the body.

[0029] Fig. 7 shows a top view of the claimed device, where the black key 4 is pressed and moved back relative to the body.

[0030] Fig. 8 shows a top view of the claimed device, where white keys 3 and black keys 4 are shown when performing reciprocating movements.

[0031] Fig. 9 shows the right view of the claimed device built into a wind musical instrument.

[0032] Fig. 10 shows a view on the right of the claimed device built into a wind musical instrument with an extended key.

[0033] Fig. 11 shows a view on the right of the claimed device built into a wind musical instrument with the key pushed in all the way.

[0034] Fig. 12 shows a view from the right of another embodiment of the claimed device with potentiometers 38.

[0035] Fig. 13 shows a top view of another embodiment of the claimed device of Fig. 12 with potentiometers 38 in a horizontal embodiment. Fig. 14 shows a right view of another embodiment of the claimed device with sensors 55.

[0036] Fig. 15 shows a top view of a variant of the embodiment of the claimed device of Fig. 14.

[0037] Fig. 16 shows a top view of the claimed devices (Fig. 12-Fig. 15), where white keys 3 and black keys 4 are shown when performing reciprocating movements.

[0038] The following are indicated on the figures: 1 - the upper part of the body, 2 - the lower part of the body, 3 - white keys, 4 - black keys, 5 - string, 6 - roller, 7 - fasteners, 8 - pin, 9 - axis, 10 - supports, 11 - connections, 12 - rocker arm, 13 - through hole, 14 - spring, 15 - first fastener, 16 - second fastener, 17 - under-key protrusion, 18 - key, 19 - valve tube, 20 - valve, 21 - rocker, 22 - bell, 23 - whistle, 24 - connection, 25 - additional spring, 26 - third fastener, 27 - fourth fastener, 28 - bar, 29 - eye, 30 - pin with head, 31 - fastening, 32 - string tension bar, 33 - spring, 34 - spring tension bar, 35 - tension roller, 36 - hinge, 37 - protrusion, 38 - potentiometers, 39 - first screw, 40 - second screw, 41 - washers, 42 - recess, 43 - locking roller, 44 - cutout, 45 - eye, 46 - support, 47 - L-shaped lever, 48 - fastening, 49 - spring, 50 - counterweight, 51 - supports, 52 - V-shaped recess, 53 - covering, 54 - grooves, 55 - sensors,56 - response parts,

[0039] Implementation of the invention.

[0040] In the present invention, operational manufacturability is understood to mean the manufacturability of a structure when preparing it for its intended use, technical maintenance and repair of the structure.

[0041] The keyboard claimed in the present invention is intended for use in musical instruments. The body of the musical instrument comprises at least an upper part of the body 1, a lower part of the body 2, white keys 3, black keys 4, strings 5 ​​(Fig. 1-Fig. 8).

[0042] Further in the text of the description the term "key" is used; the key can be made either white 3 or black 4. The upper part of the body 1 partially covers the white 3 and black 4 keys from above from their distal end.

[0043] Moreover, the upper part of the body 1 and the lower part of the body 2 are located parallel, relative to the white keys 3 and black keys 4, and can be made in a U-shape, L-shape or other shape.

[0044] Moreover, the upper part of the body 1 can be designed as a partition between the keyboard and the main part of the body (not shown in the figures) of the musical instrument.

[0045] Between the upper part of the housing 1 and the lower part of the housing 2, keys (Fig. 1-Fig. 8) are mounted using articulated rocking levers 12 to ensure free reciprocating movements when the key is pressed down.

[0046] In this case, the rolling lever 12 is mounted through a through hole 13 in the upper part of the housing 1.

[0047] Moreover, lever 12 can be made of composite materials, non-magnetic metal, etc.

[0048] The through hole 13 in the upper part of the housing, through which the rolling lever 12 is mounted, is designed with the possibility of limiting the angular movement of the lever.

[0049] The upper end of the rocking lever 12, resting on top of the body, is provided with a roller 6, on one of whose ends a string 5 is mounted with the possibility of its tension when the key is pressed and loosened when the key returns to its original position before being pressed.

[0050] Roller 6 has a protruding part made in the form of a pin 8, one end of which is rigidly fixed to roller 6, and a fastening 7 is screwed onto the other, clamping the string onto roller 6 (see Fig. 2-Fig. 4, Fig. 6).

[0051] Thus, string 5 for each of the keys is connected in the body by methods known from the prior art at one end (not shown in the figures), and at the second end it is fixed on roller 6 through fastening 7.

[0052] Moreover, stud 8 has a thread.

[0053] Moreover, the fastening 7 can be made in the form of a threaded sleeve, nut, etc.

[0054] Moreover, roller 6 is made cylindrical, thereby ensuring smooth tension of the string during operation of the musical instrument, for example, in the form of a bearing (see Fig. 2-Fig. 4, Fig. 6). Roller 6 has an axis 9 (Fig. 3), the ends of which protrude beyond the boundaries of the said roller 6 and are connected to pairwise located supports 10, the other ends of which are connected to the upper part of the body 1.

[0055] Moreover, roller 6 and axis 9 can be connected to each other by a rigid connection, then the ends of axis 9 must be fastened by a free rotation connection with supports 10, for example, using a threaded or through hole at the ends of axis 9, etc. (not shown in the figures).

[0056] Moreover, roller 6 and axis 9 can be connected to each other by a free rotation connection, then the ends of axis 9 must be rigidly fastened to supports 10, for example, using clamp connections, threaded connections, etc. (not shown in the figures).

[0057] Moreover, the supports 10 are connected to the upper part of the housing 1 by rigid connections 11, to prevent the movement of the roller 6.

[0058] Moreover, the supports 10 can be made rigid (for example, from a non-magnetic metal, etc.) and immovable relative to the movement of the roller 6. It is worth considering that the larger the angle formed by the pairwise located supports 10 (Fig. 2), the greater their holding capacity.

[0059] The rocking lever 12 is designed with the ability to affect the tension of the string through the roller 6 to adjust the expressive color of the sound (in particular, the timbre, tone and pitch of the note, etc.).

[0060] Spring 14 (Fig. 2, Fig. 4, Fig. 6) is stretched between the rocking lever 12 and the rear wall of the housing with the possibility of returning the key to its original position after it is no longer pressed.

[0061] The spring 14 is connected to the rolling lever 12 by means of the first fastener 15 and to the upper part of the housing 1 by means of the second fastener 16 (see Fig. 2, Fig. 4, Fig. 6).

[0062] Moreover, the first fastener 15 and the second fastener 16 can be made in the form of a hook through a loop (eye) and hooks.

[0063] Moreover, for better holding capacity of spring 14, the second fastener 16 can be made in a Y-shape.

[0064] Moreover, the under-key projection 17 (Fig. 2, Fig. 4, Fig. 6) of the white keys 3 is made so as not to limit the maximum extension of the black keys 4 during reciprocating movements. Moreover, Fig. 8 shows the possibility of using the claimed method both for the black keys 3 and for the white keys 2.

[0065] The other end of the specified keys acts on the string activation mechanism 5, for example, a hammer, plectrum, pick or other (not shown in the figures).

[0066] The musical instrument can also be equipped with a damper, a resonant deck, etc., as well as with pins for connecting the other end of the string 5 to the resonant deck. Another embodiment of the claimed device is shown in Fig.9-Fig.11.

[0067] Fig.9-Fig.11 show the claimed device, made for a wind musical instrument, having at least a body (shown in Fig.9-Fig.11 as the upper part of the body 1), in which keys 18 protruding outward with their proximal ends, made with the possibility of reciprocating movement in the longitudinal and transverse directions, a pipe (shown in Fig.9-Fig.11 as a valve tube 19) with a movable slide 21, a valve 20, a mouthpiece (not shown in the figures), a bell 22, a slit are mounted.

[0068] Moreover, the gap is formed by whistle 23.

[0069] The link 21 is designed with the ability to regulate the air column.

[0070] Moreover, valve 20 is made hinged.

[0071] Valve 20 provides the ability to open and close valve tube 19.

[0072] In the upper part of the body 1, a through hole 13 is made, in which a lever 12 is longitudinally built in order to ensure free reciprocating movements when pressing a key in the longitudinal or transverse directions.

[0073] The lever 12 is pivotally connected to each of the keys 18.

[0074] The lever 12 is spring-loaded with the housing (shown in Fig. 9-Fig. 11 as the upper part of the housing 1) by means of two springs, spring 12 and additional spring 25, directed in opposite directions from the lever 12 to the housing.

[0075] The spring 14 is connected to the lever 12 by means of the first fastener 15 and to the upper part of the housing 1 by means of the second fastener 16.

[0076] Between the lever 12 and the upper part of the housing 1, an additional spring 25 is mounted using a third fastener 25 and a fourth fastener 26, located at the same level with the above-mentioned spring 14, to ensure the possibility of returning the key to its original position after it is no longer pressed, taking into account the weight of the slide 21. The upper end of the lever 12 is connected to the slide 21 to transmit to it a reciprocating motion in the longitudinal direction.

[0077] Moreover, the connection (not shown in the figures) of the lever 12 with the link 21 can be made with a hinge or any other connection that ensures the rotary movements of the lever 12 when the key is pressed and shifted in the transverse direction.

[0078] The lower end of the lever 12 is pivotally attached to the key 18 using a connection 24 (Fig. 9-Fig. 11).

[0079] The distal end of key 18 is secured through bar 28 with valve 20 to transmit reciprocating movements to it in vertical and transverse directions.

[0080] The connection of key 18 and bar 28 is made using eye 29 in bar 28 and a pin with head 30 mounted on said key 18 to ensure free reciprocating movements of lever 12 when pressing the key in the longitudinal and transverse directions.

[0081] Moreover, the fastening 31 of the strip 28 to the valve 20 can be carried out in a hinged or rigid manner.

[0082] Other embodiments of the claimed device are shown in Fig.12 and Fig.13.

[0083] Fig. 12 shows the claimed device, containing a housing made in the form of an upper 1 and lower 2 parts of the housing.

[0084] Between the upper 1 and lower 2 parts of the housing, using the rolling levers 12, the rolling axis of which is made in the middle part of the lever 12, keys are mounted with the possibility of their movement in the longitudinal direction due to the angular movement of the lever 12.

[0085] In this case, the rolling lever 12 is mounted through a through hole 13 in the upper part of the housing 1.

[0086] On the axis of rotation of the rolling lever 12, a roller 6 is mounted, on which a string 5 rests, mounted with its end to the string tension bar 32.

[0087] The upper end of the rocking lever 12 is connected by a spring 33, the other end of which is secured to the spring tension bar 34 with the possibility of changing the rigidity of the key.

[0088] The rocking lever 12 is provided with a tension roller 35, interacting with the string 5 on its section from the roller 6, on which the string 5 rests and the string tension bar

[0089] 34. In this case, the hinge connection 36 of the key and the rocking lever 12 is designed with the possibility of reciprocating movement of the key along the rocking lever 12 for interaction with the proximal ends with the potentiometers 38 mounted in the lower part of the housing 2, due to the vertically oriented elongated eye made in the lower part of the lever 12 on which the hinge axis rests (see Fig. 12).

[0090] Moreover, for the interaction of the key with the potentiometer, a protrusion 37 is made in its lower part.

[0091] Moreover, the protrusion 37 can be made along the key at any distance from its edge.

[0092] In the embodiment (Fig. 12, Fig. 13), the string tension bars 32 and springs 34 are equipped with screws (the first screw 39 and the second screw 40), mounted through the wall of the housing, the heads of which are located on the outside.

[0093] The first 39 and second 40 screws have washers 41 for secure fixation of the said screws in the body.

[0094] Moreover, the first screw 39 is connected to one of the ends of the string tension bar 32.

[0095] The second end of the string tension bar 32 has a recess 42 for the roller 43 that fixes the string 5, as well as a cutout 44 for feeding the string 5 (Fig. 12, Fig. 13).

[0096] Moreover, the recess 42 and the cutout 44 form an L-shaped groove in the second strip 35.

[0097] Moreover, the first screw 39, due to its head, is designed with the ability to adjust the tension of the string 5.

[0098] Moreover, Fig. 12 and Fig. 13 show that the second screw 40 is connected to one of the ends of the spring tension bar 34, the second end of which has an eye 45 and is connected to the spring 33.

[0099] It is worth noting that the second screw 40, due to its head, is designed with the ability to adjust the tension of the spring 34 and, accordingly, change the position of the rolling lever 12.

[0100] Moreover, the tension roller 35 is mounted on the support 46, rigidly fixed on the lever 12 with the possibility of movement around its axis for distributing the force and smoothness of the tension of the string 5 between the locking roller 43 and the roller 6, mounted on the rolling lever 12. The other end of the said keys acts on the mechanism for activating the string 5, for example, made in the form of a hammer, plectrum, pick, etc. (not shown in the figures).

[0101] The musical instrument may also be equipped with at least bridges to connect the other end of string 5 to the soundboard.

[0102] Moreover, each string 5 is equipped with pickups (not shown in the figures) for converting the mechanical vibrations of the strings 5 ​​into electric current.

[0103] Moreover, sound pickups can be electromagnetic, piezoelectric or optical.

[0104] Moreover, potentiometers 38 and pickups are made with a connection to a control device, for example, a microcontroller (not shown in the figures), which will process data from the potentiometers and pickups via a wired or wireless communication channel.

[0105] Moreover, instead of potentiometers 38, sensors or other sensitive elements with similar characteristics can be used.

[0106] Moreover, the microcontroller is designed with the ability to read data from potentiometer 38 and the pickup and convert them into sound signals.

[0107] Moreover, the microcontroller is designed with the ability to program various sound effects (sound volume, expressiveness and dynamics, timbre, filter frequency, or other effects, depending on the specific design of the musical instrument), which will be activated at different positions of the keys.

[0108] The microcontroller then uses the received data to generate an audio signal, which can be amplified and output through a sound source unit, such as a speaker (not shown in the figures), creating a sound wave that the listener will hear.

[0109] An embodiment of the claimed device (Fig. 12) in a horizontal design and having three potentiometers 38 is shown in Fig. 13.

[0110] Moreover, the implementation of the claimed device is not limited to the use of one (Fig. 12) or three potentiometers 38 (Fig. 13) for each mentioned key, which provides various sound effects (sound volume, expressiveness and dynamics, timbre, filter frequency, or other effects, depending on the specific design of the musical instrument). In Fig. 13, the rocking lever 47 is made L-shaped in the form of three intersecting strips at one point, forming a right angle between each other.

[0111] The first bar of the rocking lever 47 is connected to the mentioned key (in the example of Fig. 13 - white key 3), by the connection shown in Fig. 12.

[0112] The second bar of the rolling lever 47 is connected to the spring 33 via the fastening 48.

[0113] At one end of the third bar of the rolling lever 47, a roller 6 is mounted, and at the other, a tension roller 35.

[0114] Thus, this design (Fig. 13) is created with the possibility of horizontal execution of the first 39 and second 40 control screws (Fig. 12), which can be located at different levels for each of the white 3 and black 4 keys.

[0115] Moreover, the mentioned screws, washers, strips, springs, rollers, hinge joints, rolling levers and protrusions can be made of non-magnetic metals and other composite materials.

[0116] Another embodiment of the claimed device is shown in Fig. 14.

[0117] The claimed device contains a housing made in the form of an upper 1 and lower 2 parts.

[0118] Between the upper 1 and lower 2 parts of the body, the keys rest on springs 49 mounted in the lower part of the body 2.

[0119] Counterweights 50 are mounted at the distal ends of each key to ensure that the center of gravity of the keys is shifted toward the distal end.

[0120] In this case, the keys are designed with the possibility of displacement relative to the axis of the spring 49 when acting on the proximal end of the key and back, after the end of the action on the key due to the counterweight 50.

[0121] Moreover, counterweights 50 can be made of various shapes from composite metals, wood, non-magnetic metals, etc., and also connected to the said key by a rigid detachable or non-detachable connection that prevents its disconnection, for example, by an adhesive connection, a threaded connection, etc.

[0122] Moreover, springs 49 can be mounted on supports 51 to ensure uniform pressure on the key during reciprocating movements.

[0123] Moreover, the springs 49 are the holder and stabilizer of the keys, and can be replaced by any other element with similar characteristics. Moreover, the supports 51 can be made of various shapes from plastic, composite metals, wood, etc., and also connected to the said key and the lower part of the body 2 by a rigid connection that prevents their disconnection during the movement of the said key, for example, by a non-detachable adhesive connection, a detachable threaded connection, etc.

[0124] Moreover, the supports 51 can be designed with the possibility of adjusting the tension of the spring 49.

[0125] In this case, in the upper part of the body, V-shaped recesses 52 are provided for each key, ensuring that the keys slide in them when they are displaced.

[0126] Moreover, each V-shaped recess 52 is provided with a coating 53, which ensures smoothness and silence during the reciprocating movements of the said key (Fig. 14).

[0127] Moreover, the covering 53 can be made of felt or any other material that provides noise reduction when the key comes into contact with the upper part of the body 1.

[0128] Moreover, the keys can be provided with grooves 54 for V-shaped recesses 52 in the upper part of the body 1.

[0129] At the bottom of the keys, at the proximal end, sensors 55 are mounted, which interact when shifted with their corresponding parts 56, mounted on the bottom of the housing 2 under the sensors 55 and causing the appearance of an electrical signal, which is converted into a sound signal.

[0130] The response parts 56 can be made of metal, carbon or any other conductive coating in the form of paint, film, etc., having sufficient conductivity when in contact with the sensors 55.

[0131] Moreover, sensors 55 are designed with the ability to register keystrokes and convert this information into a signal transmitted to the converter.

[0132] Moreover, sensors 55 can be implemented as contact sensors (mechanical, capsule, etc.), which register pressing during physical contact of the sensor with the mating part.

[0133] Moreover, the sensors 55 can be made as piezoelectric elements for recording vibration caused by pressing a key. Moreover, the sensors 55 can be made as optical sensors (infrared optical sensors) for recording the passage of a light beam when pressing a key.

[0134] Moreover, sensors 55 can be implemented as capacitive sensors that register changes in capacitance when a key is touched.

[0135] Moreover, sensors 55 can be designed as magnetic sensors for recording changes in the magnetic field caused by pressing a key.

[0136] Moreover, the sensors 55 can be implemented as ultrasonic sensors for measuring the distance between the keys and the response part, determining when the key is pressed.

[0137] The implementation of sensors 55 is not limited to the above options.

[0138] Moreover, the transmission lines (not shown in the figures) of the signal from sensors 55 to the converter and microcontroller can be implemented via a wireless communication channel or a wired one, located along the above-mentioned key.

[0139] Moreover, the presence of a converter(s) is determined by the characteristics of the sensors 55 used; the converter can be made analog-to-digital.

[0140] Moreover, the signal transmission circuit may include a system of filters (not shown in the figures) to select the required frequencies and eliminate noise.

[0141] Moreover, the signal transmission circuit can include an effects block (not shown in the figures) to improve the purity of the sound, its “transparency”.

[0142] Moreover, the signal transmission circuit may include a microcontroller (not shown in the figures) with the ability to program various sound effects (sound volume, expressiveness and dynamics, timbre, filter frequency, or other effects, depending on the specific design of the musical instrument), which will be activated at different positions of the keys.

[0143] Moreover, the signal transmission circuit may include a mixer (not shown in the figures), with the help of which the signal can be additionally amplified or subjected to other processing.

[0144] Moreover, the signal transmission circuit may include a divider (not shown in the figures), due to the introduction of which the signal can be divided into several channels or directed to different blocks of the sound source (not shown in the figures).

[0145] The microcontroller then uses the received data to generate an audio signal, which can be amplified and output through a sound source unit, such as a speaker (not shown in the figures), creating a sound wave that the listener will hear.

[0146] The implementation of the signal transmission circuit from sensors 55 to the sound source unit(s) is not limited to the above options.

[0147] The claimed device (Fig. 1-Fig. 8) operates as follows.

[0148] It should be taken into account that pressing the keys of the claimed device (Fig. 1-Fig. 8) is performed by pressing, taking into account the possible movement of the keys in the longitudinal direction forward and backward relative to the upper 1 and lower 2 parts of the body.

[0149] Pressing the key forward (or backward) sets the articulated rocking lever 12 in motion within the limits of the angular movement of the lever due to the through hole 13.

[0150] Moreover, when the key is pressed longitudinally forward (or backward), due to the supports 10 and the specified hinge joint, the lever 12 tensions the string 5.

[0151] When the specified key is pressed forward (or backward), the lever 12 sets the roller 6 into action, and the string 5 is thus tensioned (released).

[0152] As is known, mechanical vibrations of varying amplitudes that occur when the activation mechanism strikes string 5 are transmitted to the deck and dissipate, which amplifies the sound.

[0153] Providing different tension levels of string 5 is accomplished by increasing the number of degrees of freedom of the specified key, which leads to an increase in the number of possible vibration amplitudes of string 5, which directly affect the expressive capabilities of the musical instrument, in particular the timbre, pitch of the note, etc.

[0154] It should be taken into account that when pressing forward relative to the upper 1 and lower 2 parts of the housing (Fig. 1-Fig. 8), the spring 14 is stretched, and when pressing backward, the spring 14 is compressed, providing a return action to the original position after pressing the specified key.

[0155] The tension of spring 14 and the inherent tension of string 5 return the key to its original equilibrium position.

[0156] Another variant (Fig. 9) of the claimed device, in particular wind instruments, operates as follows. It should be noted that playing a wind instrument (Fig. 9) is performed in the classical manner, by supplying a flow of air.

[0157] Moreover, the air flow passes through the valve tube 19 and the valve 20, which is in the open state, then enters the link 21 and is discharged through the bell 22, emitting sound signals.

[0158] Opening of valve 20 is carried out by pressing key 18.

[0159] The distal end of the key 18 moves upward, exerting pressure on the hinge (not shown in the figures) of the valve 20, due to which it opens.

[0160] When pressing key 18 of the claimed design (Fig. 10) in the longitudinal direction forward, the possibility of movement of the slide 21 is provided by means of the lever 12 fixed between them, whereby the air column increases, and the expressive color of the sound changes (in particular, the pitch of the note).

[0161] When pressing key 18 of the claimed design (Fig. 11) in the longitudinal direction backwards, the possibility of movement of slide 21 in the same direction is ensured, while the air column decreases, and the expressive color of the sound changes (in particular, the pitch of the note).

[0162] By pressing key 18 of the claimed design in the transverse direction to the left or right, it is possible to adjust the expressive color of the sound.

[0163] Thus, key 18, when moving in the transverse direction to the left or right, simultaneously moves bar 28, which in turn shifts the hinge (not shown in the figures) of valve 20, which causes a change in the volume of air supplied through valve 20, the level of which directly affects the volume, timbre, etc.

[0164] In this way, they achieve a variation in the expressive color of the sound, in particular, the pitch of the note, timbre and volume.

[0165] Another version (Fig. 12, Fig. 13, Fig. 16) of the claimed device operates as follows.

[0166] It should be taken into account that the keys of the claimed device (Fig. 12, Fig. 13) are pressed by pressing taking into account the possible movement of the keys in the longitudinal direction forward and backward relative to the upper 1 and lower 2 parts of the housing. Pressing the key forward (or backward) sets the articulated rocking lever 12 in motion within the limits of the angular movement of the lever due to the through hole 13.

[0167] Moreover, when the key is pressed longitudinally forward (or backward), due to the supports 10 and the specified hinge joint, the lever 12 tensions the string 5.

[0168] When the said key is pressed forward (or backward), the lever 12 sets the roller 6 and the tension roller 35 into action, the string 5 is thus tensioned (released).

[0169] At the same time, mechanical vibrations of varying amplitudes that occur when the activation mechanism strikes string 5 are transmitted to the deck and dissipate, which amplifies the sound.

[0170] Providing different tension levels of string 5 is accomplished by increasing the number of degrees of freedom of the specified key, which leads to an increase in the number of possible vibration amplitudes of string 5, which directly affect the expressive capabilities of the musical instrument, in particular the timbre, pitch of the note, etc.

[0171] These vibrations are recorded by pickups.

[0172] The pickups convert the mechanical vibrations of the strings 5 ​​into electrical current and transmit the data to the microcontroller.

[0173] In parallel with these actions, potentiometers 38 record the mechanical action of the key (through protrusion 37) and convert it into electric current, then transmit the data to the microcontroller.

[0174] The microcontroller reads the received data from the potentiometers 38 and the pickups, converts them into sound signals and outputs them to the sound source unit.

[0175] The sound source outputs them as an audio signal.

[0176] Moreover, the adjustment of the reciprocating movements of the lever 12 and, accordingly, the said key is ensured by tensioning the spring 33 by screwing in and out the second screw 40 and, accordingly, the tension spring bar 34, for example, during deformation (stretching) of the spring 33, which increases the service life of the said spring. The tension of the string 5 is adjusted by screwing in and out the first screw 39 and, accordingly, the tension string bar 32, as well as the roller 43 built into it that fixes the string 5.

[0177] As is known from the level of technology, the tension of the strings allows you to adjust their vibration amplitude and, accordingly, the sound at the output.

[0178] Another version (Fig. 14, Fig. 16) of the claimed device operates as follows.

[0179] Pressing the specified key in the longitudinal and transverse direction results in compression of the spring 49 (Fig. 14, Fig. 16).

[0180] Sensor 55 touches the mating part 56.

[0181] The sensor 55, depending on its type and the selected counter part 56, registers a signal about the touch (and its duration).

[0182] From the sensor, signal information is transmitted to the converter and / or microcontroller via wired or wireless communication channels.

[0183] The converted signal from the microcontroller is passed to the sound source block(s) for playback.

[0184] Moreover, the signal transmission line from sensor 55 to the sound source unit(s) can be carried out through several additional signal conversion devices described above.

[0185] The return of the key to its original position is carried out with the help of counterweight 50, the return properties of spring 49, provided by this design of V-shaped recesses 52 in the upper part of body 1.

[0186] The sound of the keys hitting the top of the case 1 is not allowed by the coating 53.

[0187] Thus, the author of the application for an invention created working models of the claimed devices, which, in comparison with the prototype and analogues, are made with a minimum sufficient number of elements for each design without compromising their reliability and operational manufacturability, which is compensated by the above-described elements, their interconnections and the specified properties.

Claims

CLAUSE OF INVENTION 1. A keyboard for a musical instrument comprising a housing made in the form of upper and lower parts, between which keys are mounted using articulated rocking levers, wherein the lever is mounted through a through hole in the upper part of the housing, the upper end of the rocking lever, resting on top of the housing, is provided with a roller, on one of whose ends a string is mounted with the possibility of its tension when the key is pressed and loosened when the key returns to its original position before pressing, a spring, tensioned between the lever and the rear wall of the housing with the possibility of returning the key to its original position after it stops being pressed.

2. A keyboard for a musical instrument according to item 1, characterized in that the through hole in the upper part of the body, through which the lever is mounted, is designed with the possibility of limiting the angular movement of the lever.

3. A keyboard for a musical instrument comprising a housing in which keys are mounted protruding outward with their proximal ends, made with the possibility of reciprocating movement in the longitudinal and transverse directions, a tube with a movable slide made with the possibility of regulating the air column and a valve providing the possibility of opening and closing the tube, a lever mounted through a through hole in the upper part of the housing and pivotally connected to each of the keys and spring-loaded to the housing by means of two springs directed in opposite directions from the lever to the housing, the upper end of the lever is connected to the slide for transmitting reciprocating movement to it in the longitudinal direction, the lower end of the lever is pivotally fixed to the key, the distal end of the key is mounted through a bar to the valve for transmitting reciprocating movements to it in the vertical and transverse directions.

4. A keyboard for a musical instrument according to item 3, characterized in that the upper part of the body is made in a U-shape.

5. A keyboard for a musical instrument according to paragraph 3, characterized in that the connection of the key and the bar is made using an eye in the bar and a pin with a head.

6. A keyboard for a musical instrument comprising a housing made in the form of upper and lower parts, between which keys are mounted with the possibility of moving them in the longitudinal direction due to the angular movement of the lever using rolling levers, the rolling axis of which is made in the middle part of the lever, wherein the lever is mounted through a through hole in the upper part of the housing, a roller is mounted on the axis of rotation of the lever, on which a string rests, mounted with its end to the string tension bar, the upper end of the lever is connected by a spring to the spring tension bar with the possibility of changing the rigidity of the key, which is pivotally mounted to the lower end of the lever, the lever is provided with a tension roller interacting with the string on its section from the roller on which the string rests and the string tension bar,wherein the hinged connection of the key and the lever is designed with the possibility of vertical reciprocating movement of the key along the lever for interaction with the proximal ends of the potentiometers mounted in the lower part of the body due to the hinged connection made in the lower part of the lever.

7. A keyboard for a musical instrument according to item 6, characterized in that the string tension bars and springs are equipped with screws mounted through the wall of the housing, the heads of which are located on the outside.

8. A keyboard for a musical instrument according to item 6, characterized in that a protrusion is made in its lower part for interaction of the key with the potentiometer.

9. A keyboard for a musical instrument comprising a housing made in the form of an upper and lower part, between which keys rest on springs mounted in the lower part of the housing, on the distal ends of which counterweights are mounted, ensuring the displacement of the center of gravity of the keys to the distal end, wherein the keys are made with the possibility of displacement relative to the spring axis when acting on the proximal end of the key and back, after the end of the action on the key due to the counterweight, wherein in the upper part of the housing for each key there are V-shaped recesses, ensuring the sliding of the keys in them when they are displaced, in the lower part of the keys on the proximal end there are sensors mounted, interacting when displaced with their corresponding parts, mounted on the lower part of the housing under the sensors and causing the appearance of an electrical signal, which is converted into a sound signal.

10. A keyboard for a musical instrument according to item 9, characterized in that the spring is connected to the key and to the lower part of the body through supports.

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