Shifting rod mechanism and intelligent guitar

By using a magnetic interactive system in the electronic guitar lever mechanism to achieve automatic reset of the lever, the problem of short spring reset life in the prior art is solved, and the flexibility and service life of the mechanism are improved.

CN119811339APending Publication Date: 2025-04-11SHENZHEN NIKOLO INTELLIGENT MUSICAL INSTRUMENT CO LTD
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Patent Information

Application Number
CN202411881862.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

The existing electronic guitar lever mechanism uses spring reset, resulting in short service life and complex structure.

Method used

By providing the first magnet on the lever, the magnetic interaction between the second magnet and the third magnet can be achieved automatically reset and stable holding of the lever.

Benefits of technology

It improves the flexibility and adaptability of the lever mechanism, extends the service life, reduces friction and wear, and achieves more accurate and rapid lever action.

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Abstract

The invention relates to the technical field of electronic musical instruments, in particular to a deflector rod mechanism and an intelligent guitar, and the deflector rod mechanism comprises an upper guitar body cover, a deflector rod assembly, a deflector rod reset assembly and a deflector rod output assembly. The guitar body upper cover is provided with a driving lever mounting groove, a bearing is arranged in the driving lever mounting groove, the driving lever output assembly is rotatably arranged on the bearing, the driving lever assembly is provided with a driving piece, the driving piece is provided with a first magnet, the driving lever reset assembly comprises a second magnet, a third magnet and a fixing piece, and the fixing piece is used for fixing the second magnet and the third magnet on the guitar body upper cover. The first magnet and the second magnet attract each other so that the shifting piece can be kept at the position of the second magnet, and the first magnet and the third magnet repel each other so that the first magnet can reset towards the position of the second magnet. The deflector rod can be automatically pushed to reset through repulsive force between the first magnet and the third magnet, and it is ensured that the deflector rod can rapidly and accurately return to the initial state. Compared with a traditional spring, the reset service life is longer.
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Description

Technical Field

[0001] The present invention relates to the technical field of electronic musical instruments, and in particular to a lever mechanism and an intelligent guitar. Background Art

[0002] Electronic musical instruments, as the name implies, refer to musical instruments that produce sound through electronic technology. They do not rely on the physical vibration sound-generating principle of traditional musical instruments, but use electronic components such as electronic oscillators, filters, and amplifiers to generate and process sound. Among electronic musical instruments, the smart electronic guitar is an innovative product that combines modern technology with the design of classic musical instruments. It combines the playing experience of traditional guitars with intelligent functions, bringing unprecedented playing and learning experiences to music lovers and performers. Because traditional musical instruments are too harmful to fingers and easily scratch hands, causing frequent bleeding of hands. For this reason, the existing technology is to design electronic musical instruments that realize the function of plucking the strings by pressing the keyboard, avoiding the harm of the strings to the fingers. However, in the use of electronic guitars, the existing plucking rod mechanism adopts spring reset, the spring reset structure has a short service life, and the structure is relatively complex. Summary of the invention

[0003] To solve the above problems, the present invention automatically pushes the lever back to its original position through the repulsive force between the first magnet and the third magnet, ensuring that the lever can quickly and accurately return to its original position and be ready for the next operation. This not only improves the flexibility and adaptability of the mechanism, but also provides more possibilities for the personalized needs of users. Compared with the traditional spring reset, the lever mechanism and smart guitar have a longer life and better stability.

[0004] The technical solution adopted by the present invention is: a lever mechanism, including a piano body cover, a lever assembly, a lever reset assembly and a lever output assembly; the piano body cover is provided with a lever mounting groove, a bearing is provided in the lever mounting groove, the lever output assembly is rotatably arranged on the bearing, the lever assembly is provided with a plectrum, the plectrum is provided with a first magnet, the lever reset assembly includes a second magnet, a third magnet and a fixing member, the fixing member is used to fix the second magnet and the third magnet on the piano body cover, the first magnet, the second magnet and the third magnet are arranged on the same radial line with the lever assembly as the axis; the first magnet and the second magnet attract each other to keep the plectrum at the second magnet position, the first magnet and the third magnet repel each other to reset the first magnet toward the second magnet position; the lever output assembly is arranged on the lever assembly.

[0005] A further improvement to the above scheme is that a first mounting step and a second mounting step are respectively provided at both ends of the lever mounting groove, and two bearings are provided, which are respectively installed on the first mounting step and the second mounting step for rotational connection of the two ends of the lever assembly.

[0006] A further improvement to the above scheme is that the lever assembly includes a lever housing, the lever housing is provided with an assembly fixing groove, a fixing bracket is provided in the lever mounting groove, and the lever housing is sleeved on the fixing bracket through the assembly fixing groove.

[0007] A further improvement to the above scheme is that a key assembly is arranged in the fixing bracket, the key assembly is provided with a key cap, a key slot is arranged at the end of the lever housing, and the key cap is located on the key slot.

[0008] A further improvement to the above scheme is that the key assembly includes a key plate and a key shaft, one end of the key shaft is connected to the key cap, the key plate is arranged at the bottom of the fixed bracket, a key module is arranged on the key plate, and the key cap is used to drive the key shaft to trigger the key module.

[0009] A further improvement to the above solution is that the key cap is provided with a lamp board, and a light wick is provided on the lamp board, and the light wick emits light toward the key slot to form an aperture on the key slot.

[0010] A further improvement to the above scheme is that the lever output assembly includes an output gear, an output sensing element and an output connecting rod, one end of the output gear is connected to the lever assembly, the output sensing element is provided with a sensing gear, the sensing gear is meshed with the output gear, one end of the output connecting rod is connected to the upper cover of the piano body, and the other end is connected to the output gear.

[0011] A further improvement to the above scheme is that the output connecting rod includes a first connecting rod and a second connecting rod, the upper cover of the piano body is provided with a connecting rod limiting groove, one end of the first connecting rod is pivotally connected to the connecting rod limiting groove, one end of the second connecting rod is pivotally connected to the first connecting rod, and the other end is pivotally connected to the output gear.

[0012] A further improvement to the above scheme is that it also includes a sound-emitting element, wherein the upper cover of the piano body is provided with a fixed connecting column in the lever mounting slot, the sound-emitting element is arranged on the fixed connecting column, the sound-emitting end of the sound-emitting element faces the lever mounting slot and is guided out through the lever assembly.

[0013] A smart guitar comprises a lever mechanism and a body shell, wherein the body shell is provided with a body lower shell, the body lower shell is buckled with a body upper cover to form a placement cavity, and the lever output component is arranged in the placement cavity.

[0014] The beneficial effects of the present invention are: Compared with the existing musical instrument lever mechanism, the present invention provides a stable and flexible rotating platform for the lever output assembly through the lever mounting groove and built-in bearings provided on the upper cover of the instrument body. This design not only ensures the smooth and unobstructed operation of the lever, but also greatly improves the durability and service life of the mechanism. The application of bearings effectively reduces friction and wear, making the lever action more precise and responsive. Secondly, the plectrum and the first magnet provided on the lever form an ingenious magnetic interaction system with the second magnet and the third magnet in the lever reset assembly. This design makes full use of the attraction and repulsion characteristics of magnetic force to achieve the automatic reset and stable retention function of the lever. When the lever is moved by external force, the attraction between the first magnet and the second magnet will keep the lever in a specific position (i.e., the position of the second magnet), thereby achieving stable locking of the lever state. When the external force disappears or changes direction, the repulsion between the first magnet and the third magnet will automatically push the lever to reset, ensuring that the lever can quickly and accurately return to the initial state and be ready for the next operation. Not only can the second magnet and the third magnet be firmly fixed on the piano body cover to ensure the stability of the magnetic system, but the position and spacing of the magnets can also be adjusted according to actual needs, so as to achieve precise control of the lever reset force and holding force. This design not only improves the flexibility and adaptability of the mechanism, but also provides more possibilities for the personalized needs of users. Compared with the traditional spring reset, it has a longer life and better stability. The setting of the lever output assembly enables the mechanism to be directly connected to other mechanical parts or electronic components to realize signal transmission and control. This design not only broadens the application scope of the lever mechanism, but also enables it to be easily integrated into various complex mechanical equipment systems, providing strong support for the intelligent and automated control of the equipment.

[0015] The above-mentioned lever mechanism scheme is applied to the smart guitar. The lever mechanism takes the lever assembly as the axis, and the first magnet, the second magnet and the third magnet are arranged on the same radial line. This compact and reasonable layout not only optimizes the internal structure of the smart guitar, but also ensures the stable coordination between the components, further improving the durability and reliability of the guitar. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the smart guitar of the present invention; Figure 2 for Figure 1 Explosion diagram of the smart guitar; Figure 3 is a three-dimensional schematic diagram of the lever mechanism of the present invention; Figure 4 for Figure 1 A three-dimensional schematic diagram of the structure of the middle lever mechanism; Figure 5 for Figure 4A top view of the middle lever mechanism; Figure 6 for Figure 5 Sectional view of AA in the middle; Figure 7 for Figure 4 An exploded diagram of the middle lever mechanism; Figure 8 for Figure 4 An exploded diagram of the middle lever mechanism from another perspective.

[0017] Explanation of the accompanying drawings: piano body upper cover 1, lever mounting groove 11, first mounting step 111, second mounting step 112, bearing 12, fixed bracket 13, connecting rod limiting groove 14, fixed connecting column 15, lever assembly 2, plectrum 21, first magnet 22, lever housing 23, assembly fixing groove 231, key groove 232, lever reset assembly 3, second magnet 31, third magnet 32, fixing part 33, lever output assembly 4, output gear 41, output sensing element 42, sensing gear 421, output connecting rod 43, first connecting rod 431, second connecting rod 432, key assembly 5, key cap 51, lamp board 511, light wick 512, key board 52, key module 521, key shaft 53, sounding element 6, piano body housing 7, piano body lower shell 71. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 8As shown, in one embodiment of the present invention, a lever mechanism is involved, including a piano body cover 1, a lever assembly 2, a lever reset assembly 3 and a lever output assembly 4; the piano body cover 1 is provided with a lever mounting groove 11, a bearing 12 is provided in the lever mounting groove 11, the lever output assembly 4 is rotatably arranged on the bearing 12, the lever assembly 2 is provided with a plectrum 21, a first magnet 22 is provided on the plectrum 21, the plectrum reset assembly 3 includes a second magnet 31, a third magnet 32 ​​and a fixing member 33, the fixing member 33 is used to fix the second magnet 31 and the third magnet 32 ​​on the piano body cover 1, the first magnet 22, the second magnet 31 and the third magnet 32 ​​are arranged on the same radial line with the lever assembly 2 as the axis; the first magnet 22 and the second magnet 31 are attracted to each other so that the plectrum is kept at the position of the second magnet 31, the first magnet 22 and the third magnet 32 ​​repel each other so as to reset the first magnet 22 toward the position of the second magnet 31; the lever output assembly 4 is arranged on the lever assembly 2. In this embodiment, the lever mounting groove 11 and the built-in bearing 12 provided on the upper cover 1 of the piano body provide a stable and flexible rotating platform for the lever output assembly 4. This design not only ensures the smooth operation of the lever, but also greatly improves the durability and service life of the mechanism. The application of the bearing 12 effectively reduces friction and wear, making the lever action more precise and responsive. Secondly, the plectrum 21 and the first magnet 22 provided on the lever form an ingenious magnetic interaction system with the second magnet 31 and the third magnet 32 ​​in the lever reset assembly 3. This design makes full use of the attraction and repulsion characteristics of magnetic force to achieve the automatic reset and stable retention function of the lever. When the lever is moved by an external force, the attraction between the first magnet 22 and the second magnet 31 will keep the lever in a specific position (i.e., the position of the second magnet 31), thereby achieving stable locking of the lever state. When the external force disappears or changes direction, the repulsion between the first magnet 22 and the third magnet 32 ​​will automatically push the lever to reset, ensuring that the lever can quickly and accurately return to the initial state and prepare for the next operation. Not only can the second magnet 31 and the third magnet 32 ​​be firmly fixed on the upper cover 1 of the piano body to ensure the stability of the magnetic system, but the position and spacing of the magnets can also be adjusted according to actual needs, thereby achieving precise control of the resetting force and holding force of the lever. This design not only improves the flexibility and adaptability of the mechanism, but also provides more possibilities for the personalized needs of users. Compared with traditional spring resets, it has a longer life and better stability. The setting of the lever output assembly 4 enables the mechanism to be directly connected to other mechanical parts or electronic components to achieve signal transmission and control. This design not only broadens the application scope of the lever mechanism, but also enables it to be easily integrated into various complex mechanical equipment systems, providing strong support for the intelligent and automated control of the equipment.

[0021] The two ends of the lever mounting groove 11 are respectively provided with a first mounting step 111 and a second mounting step 112, and two bearings 12 are provided, and the two bearings 12 are respectively installed on the first mounting step 111 and the second mounting step 112, so as to be used for the rotational connection of the two ends of the lever assembly 2. In this embodiment, the precise setting of the first mounting step 111 and the second mounting step 112 provides a stable installation foundation for the two bearings 12. This structure not only enhances the stability of the lever assembly 2, but also ensures the accuracy and reliability of the lever during the rotation process. Secondly, the separate installation of the two bearings 12 effectively reduces the friction resistance of the lever during rotation. This not only makes the operation of the lever smoother, but also reduces the wear caused by friction, thereby extending the service life of the lever mechanism. In addition, this design also improves the response speed of the lever mechanism of the smart guitar. Due to the lubrication performance and rotation efficiency of the bearing 12, the lever can quickly and accurately complete the action after receiving the instruction, which is crucial to improving the fluency and expressiveness of the performance.

[0022] The lever assembly 2 includes a lever housing 23, the lever housing 23 is provided with an assembly fixing groove 231, the lever mounting groove 11 is provided with a fixing bracket 13, and the lever housing 23 is sleeved on the fixing bracket 13 through the assembly fixing groove 231. Specifically, a key assembly 5 is provided in the fixing bracket 13, the key assembly 5 is provided with a key cap 51, and a key groove 232 is provided at the end of the lever housing 23, and the key cap 51 is located on the key groove 232. In this embodiment, the lever housing 23 is accurately and firmly sleeved on the fixing bracket 13 through its special assembly fixing groove 231. This structure not only ensures the stable installation of the lever assembly 2 on the guitar, but also greatly simplifies the assembly process and improves production efficiency. The key assembly 5 cleverly arranged inside the fixing bracket 13 gives the lever more abundant functions. The key cap 51 on the key assembly 5 cleverly matches the key slot 232 at the end of the lever housing 23, so that the user can intuitively and accurately trigger the key during operation, thereby realizing flexible control of various functions of the smart guitar. The close match between the lever housing 23 and the key cap 51, as well as the reasonable layout of the key slot 232, provide the user with a comfortable and smooth operating feel.

[0023] The key assembly 5 includes a key plate 52 and a key shaft 53, one end of the key shaft 53 is connected to a key cap 51, the key plate 52 is arranged at the bottom of the fixed bracket 13, a key module 521 is arranged on the key plate 52, and the key cap 51 is used to drive the key shaft 53 to touch the key module 521. Specifically, the key cap 51 is provided with a light board 511, and a light wick 512 is arranged on the light board 511, and the light wick 512 emits light toward the key slot 232 to form an aperture on the key slot 232. In this embodiment, the key plate 52 is arranged at the bottom of the fixed bracket 13, which not only ensures the stability of the structure, but also facilitates maintenance. The key module 521 is responsible for receiving the driving force from the key cap 51 and converting it into a corresponding electrical signal to trigger various functions of the smart guitar. This design not only improves the response speed, but also enhances the reliability of the system. It is particularly worth mentioning that the design of the light board 511 and the light wick 512 integrated on the key cap 51 adds a unique visual effect to the smart guitar. The light wick 512 emits light toward the key slot 232, forming a gorgeous aperture, which not only enhances the atmosphere during the performance, but also provides intuitive visual feedback for the performer. This design is particularly eye-catching during night performances or stage performances, and can greatly enhance the appreciation and appeal of the performance.

[0024] The lever output assembly 4 includes an output gear 41, an output sensing element 42 and an output connecting rod 43. One end of the output gear 41 is connected to the lever assembly 2. The output sensing element 42 is provided with a sensing gear 421. The sensing gear 421 is meshed with the output gear 41. One end of the output connecting rod 43 is connected to the piano body cover 1, and the other end is connected to the output gear 41. Specifically, the output connecting rod 43 includes a first connecting rod 431 and a second connecting rod 432. The piano body cover 1 is provided with a connecting rod limiting groove 14. One end of the first connecting rod 431 is pivotally connected to the connecting rod limiting groove 14. One end of the second connecting rod 432 is pivotally connected to the first connecting rod 431, and the other end is pivotally connected to the output gear 41. In this embodiment, the output gear 41 is used as a core transmission component, and one end of it is closely connected to the lever assembly 2, ensuring that the lever action can be accurately converted into the rotational motion of the gear. This design not only enhances the stability of the transmission, but also effectively reduces energy loss. The output sensing element 42 is meshed with the output gear 41 through the built-in sensing gear 421, realizing real-time monitoring of the lever action. The precise meshing of the sensing gear 421 ensures the accuracy and reliability of the sensing signal, providing the smart guitar with sensitive response capabilities. In addition, the innovative design of the output connecting rod 43 further enhances the flexibility and stability of the mechanism. The pivoting structure of the first connecting rod 431 and the second connecting rod 432 enables the connecting rod system to move flexibly within the connecting rod limit groove 14 set on the upper cover 1 of the guitar body, which not only ensures the continuity of the movement, but also avoids damage caused by excessive movement.

[0025] The upper cover 1 of the guitar body is provided with a fixed connecting column 15 at the lever mounting groove 11, and the sound-generating element is arranged on the fixed connecting column 15, and also includes a sound-generating element 6, the sound-generating end of the sound-generating element 6 faces the lever mounting groove 11, and is led out through the lever assembly 2. In this embodiment, the fixed connecting column 15 serves as a stable support point for the sound-generating element 6, ensuring the stability and accuracy of the sound-generating element 6 during the installation process. The sound-generating element 6 is cleverly arranged on the fixed connecting column 15, and its sound-generating end faces the lever mounting groove 11. Such a layout not only optimizes the sound conduction path, but also significantly improves the clarity and penetration of the sound. Furthermore, in one mechanism, the sound, light and electricity are integrated, and through precise sound sensing and processing technology, the timbre of the guitar when plucking the strings is purer and more expressive. In addition, the addition of the photoelectric effect not only adds a gorgeous visual effect to the guitar performance, but also greatly improves the stage performance.

[0026] A smart guitar includes a body shell 7, wherein the body shell 7 is provided with a body lower shell 71, wherein the body lower shell 71 is buckled with the body upper cover 1 to form a placement cavity, wherein the lever output assembly 4 is arranged in the placement cavity. The lever mechanism scheme is applied to the smart guitar, wherein the lever mechanism takes the lever assembly 2 as the axis, and arranges the first magnet 22, the second magnet 31 and the third magnet 32 ​​on the same radial line. This compact and reasonable layout not only optimizes the internal structure of the smart guitar, but also ensures the stable coordination between the components, further improving the durability and reliability of the guitar.

[0027] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A lever mechanism, characterized in that: The piano body cover comprises a lever assembly, a lever reset assembly and a lever output assembly; the piano body cover is provided with a lever mounting groove, a bearing is provided in the lever mounting groove, the lever output assembly is rotatably arranged on the bearing, the lever assembly is provided with a plectrum, a first magnet is provided on the plectrum, the lever reset assembly comprises a second magnet, a third magnet and a fixing part, the fixing part is used to fix the second magnet and the third magnet on the piano body cover, the first magnet, the second magnet and the third magnet are arranged on the same radial line with the lever assembly as the axis; the first magnet and the second magnet attract each other so that the plectrum is kept at the second magnet position, the first magnet and the third magnet repel each other so as to reset the first magnet toward the second magnet position; the lever output assembly is arranged on the lever assembly.

2. The lever mechanism according to claim 1, characterized in that: The two ends of the lever mounting groove are respectively provided with a first mounting step and a second mounting step, and two bearings are provided, and the two bearings are respectively installed on the first mounting step and the second mounting step for rotational connection of the two ends of the lever assembly.

3. The lever mechanism according to claim 1, characterized in that: The lever assembly comprises a lever housing, the lever housing is provided with an assembly fixing groove, a fixing bracket is provided in the lever mounting groove, and the lever housing is sleeved on the fixing bracket through the assembly fixing groove.

4. The lever mechanism according to claim 3, characterized in that: A key assembly is arranged in the fixing bracket, and the key assembly is provided with a key cap. A key slot is arranged at the end of the lever housing, and the key cap is located on the key slot.

5. The lever mechanism according to claim 4, characterized in that: The key assembly includes a key plate and a key shaft, one end of the key shaft is connected to a key cap, the key plate is arranged at the bottom of a fixed bracket, a key module is arranged on the key plate, and the key cap is used to drive the key shaft to trigger the key module.

6. The lever mechanism according to claim 5, characterized in that: The key cap is provided with a lamp plate, and a light wick is provided on the lamp plate. The light wick emits light toward the key slot to form an aperture on the key slot.

7. The lever mechanism according to claim 1, characterized in that: The lever output assembly includes an output gear, an output sensing element and an output connecting rod. One end of the output gear is connected to the lever assembly. The output sensing element is provided with a sensing gear. The sensing gear is meshed with the output gear. One end of the output connecting rod is connected to the piano body cover, and the other end is connected to the output gear.

8. The lever mechanism according to claim 7, characterized in that: The output connecting rod includes a first connecting rod and a second connecting rod. The piano body cover is provided with a connecting rod limiting groove. One end of the first connecting rod is pivotally connected to the connecting rod limiting groove. One end of the second connecting rod is pivotally connected to the first connecting rod, and the other end is pivotally connected to the output gear.

9. The lever mechanism according to claim 1, characterized in that: It also includes a sound-generating element. The piano body cover is provided with a fixed connecting column in the lever mounting slot. The sound-generating element is arranged on the fixed connecting column. The sound-generating end of the sound-generating element faces the lever mounting slot and is guided out through the lever assembly.

10. An intelligent guitar, characterized in that: The lever mechanism comprises the one described in any one of claims 1 to 9, comprising a piano body shell, wherein the piano body shell is provided with a piano body lower shell, the piano body lower shell is buckled with the piano body upper cover to form a placement cavity, and the lever output assembly is arranged in the placement cavity.