Counterweight keyboard simulating heavy hammer key effect
By employing a design that incorporates fixed supports, white keys, black keys, circuit boards, elastic components, and counterweights on the electronic keyboard keys, the problems of complex structure and high cost of traditional electronic keyboard keys are solved, resulting in improved key feel and reduced cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN TELUNSI MUSICAL INSTR CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional electronic keyboard keys have complex mechanical structures that mimic the touch of a piano's hammer, are costly, and have a stiff feel, making it difficult to provide a playing experience close to that of an acoustic piano.
The design employs a fixed bracket, white keys, black keys, a circuit board, first and second elastic elements, and a counterweight. The counterweight is connected to the pressing end of the keys to provide a certain weight feel, and the elastic connection of the elastic elements simplifies the structure and reduces costs.
It achieves improved key feel, providing resistance and inertia effects similar to a real piano, while simplifying the structure and reducing production costs.
Smart Images
Figure CN224217238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of musical instruments, and in particular to a weighted keyboard that simulates the effect of hammer-on piano keys. Background Technology
[0002] Key weights are a tactile design used in keyboard instruments (such as electric pianos, keyboards, or MIDI keyboards) to simulate the mechanical touch of a traditional piano. Its core principle is to use physical structures to create resistance and inertia in the keys when pressed, similar to a real piano, providing a playing experience closer to that of an acoustic piano.
[0003] Traditional electronic keyboard keys simulate the feel of a piano hammer, often using mechanical counterweights or lever structures, which result in complex components, high costs, and a stiff feel. Utility Model Content
[0004] The main purpose of this invention is to propose a counterweighted keyboard that simulates the effect of a hammer-action piano key, aiming to improve the tactile feel of the keys and reduce the production cost of the keys.
[0005] To achieve the above objectives, this utility model proposes a counterweighted keyboard that simulates the effect of hammer-action piano keys, comprising:
[0006] Fixed bracket;
[0007] White key and black key, both of which are elastically connected to the fixed bracket by a first elastic element;
[0008] A circuit board, which is mounted on the fixed bracket;
[0009] A second elastic element, connected to the circuit board, is provided. Each white key and each black key corresponds to a second elastic element. When a white key and / or a black key is pressed to contact the corresponding second elastic element, the corresponding second elastic element sends a pressing signal to the circuit board to produce a corresponding musical note.
[0010] The counterweights include a first counterweight and a second counterweight. The first counterweight is connected to the end of the white key away from the corresponding first elastic element, and the second counterweight is connected to the end of the black key away from the corresponding first elastic element.
[0011] In one embodiment, both the first counterweight and the second counterweight are counterweight blocks.
[0012] In one embodiment, the first counterweight is provided with a first mounting hole, and the white key is provided with a second mounting hole. The first counterweight is fixed to the white key by the cooperation of the first mounting hole and the second mounting hole with a screw.
[0013] In one embodiment, the white key is provided with a mounting post, the second mounting hole is provided in the mounting post, the mounting post is limited to the first mounting hole, and the first counterweight is locked to the mounting post by screws.
[0014] In one embodiment, a first mounting cavity is formed on the side of the black key facing the fixed bracket, and the second counterweight is adhered to the cavity wall of the first mounting cavity.
[0015] In one embodiment, the counterweight is made of iron.
[0016] In one embodiment, the fixed bracket is provided with a first limiting protrusion and a second limiting protrusion, and the ends of the white key and the black key away from the first elastic member are respectively provided with a first limiting hole and a second limiting hole. The first limiting protrusion is limited to the first limiting hole, and the second limiting protrusion is limited to the second limiting hole.
[0017] In one embodiment, the first elastic element is a spring.
[0018] In one embodiment, the second elastic element is a silicone block.
[0019] In one embodiment, the fixing bracket has a second mounting cavity formed on the side facing the black key and / or the white key. Two mounting protrusions are spaced apart on the cavity wall of the second mounting cavity. The circuit board is fixedly mounted on the two mounting protrusions. The second elastic member is connected to the side of the circuit board away from the mounting protrusions.
[0020] The counterweighted keyboard simulating the effect of a hammer-action piano key in this utility model includes a fixed bracket, white keys, black keys, a circuit board, a second elastic element, and counterweights. The white and black keys are elastically connected to the fixed bracket via a first elastic element. The circuit board is mounted on the fixed bracket, and the second elastic element is connected to the circuit board. Each white key and each black key corresponds to a second elastic element. When a white key and / or a black key is pressed to contact the corresponding second elastic element, the corresponding second elastic element sends a pressing signal to the circuit board to produce the corresponding note. The counterweights include a first counterweight and a second counterweight. The first counterweight is connected to the white key away from the corresponding first elastic element. One end of the first elastic element is connected to the second counterweight, which is connected to the end of the black key furthest from the corresponding first elastic element. By connecting the first and second counterweights to the pressing ends of the white and black keys respectively, the pressing ends of the white and black keys have a certain weight. This allows the keys to achieve a hammer-like effect when pressed down with only a certain amount of finger pressure, thus improving the tactile feel of the keys. At the same time, only the first and second counterweights are needed, without other complex structures, which simplifies the structural complexity of the counterweighted keyboard that simulates the hammer-like effect of piano keys and reduces the manufacturing cost of the counterweighted keyboard that simulates the hammer-like effect of piano keys. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of a structure of an embodiment of a counterweighted keyboard that simulates the effect of hammer-on piano keys provided by this utility model;
[0023] Figure 2 for Figure 1 An explosion diagram;
[0024] Figure 3 for Figure 1 A bottom view.
[0025] Explanation of icon numbers:
[0026] 10. Fixed bracket; 11. Mounting post; 12. First limiting protrusion; 13. Second limiting protrusion; 14. Mounting protrusion; 21. White key; 22. Black key; 23. Spring; 31. Circuit board; 32. Silicone block; 41. First counterweight; 411. First mounting hole; 42. Second counterweight.
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] Reference Figures 1 to 3 This utility model proposes a counterweighted keyboard that simulates the effect of hammer-action piano keys, comprising:
[0032] Fixed bracket 10;
[0033] White key 21 and black key 22, both of which are elastically connected to the fixed bracket 10 via a first elastic element;
[0034] Circuit board 31, the circuit board 31 is mounted on the fixed bracket 10;
[0035] The second elastic element is connected to the circuit board 31. Each white key 21 and each black key 22 corresponds to a second elastic element. When a white key 21 and / or a black key 22 is pressed to contact the corresponding second elastic element, the corresponding second elastic element sends a pressing signal to the circuit board 31 to produce a corresponding musical note.
[0036] The counterweights include a first counterweight 41 and a second counterweight 42. The first counterweight 41 is connected to the end of the white key 21 away from the corresponding first elastic element, and the second counterweight 42 is connected to the end of the black key 22 away from the corresponding first elastic element.
[0037] The counterweighted keyboard simulating the effect of hammer-action piano keys in this utility model includes a fixed bracket 10, white keys 21, black keys 22, a circuit board 31, second elastic elements, and counterweights. White keys 21 and black keys 22 are elastically connected to the fixed bracket 10 via first elastic elements. The circuit board 31 is mounted on the fixed bracket 10, and the second elastic elements are connected to the circuit board 31. Each white key 21 and each black key 22 corresponds to a second elastic element. When a white key 21 and / or a black key 22 is pressed to contact the corresponding second elastic element, the corresponding second elastic element sends a pressing signal to the circuit board 31 to produce the corresponding melody. The counterweights include a first counterweight 41 and a second counterweight 42. The first counterweight 41 is connected to the white key 21. 1. The end of the black key 22 away from the corresponding first elastic element is connected to the end of the black key 22 away from the corresponding first elastic element. That is, by connecting the first weight 41 and the second weight 42 to the pressing ends of the white key 21 and the black key 22 respectively, the pressing ends of the white key 21 and the black key 22 have a certain weight. This allows the key to achieve the hammer effect when pressed down with only a certain amount of finger pressure, thereby improving the touch of the key. At the same time, only the first weight 41 and the second weight 42 need to be set, without other complex structures, thus simplifying the structural complexity of the counterweighted keyboard that simulates the hammer effect and reducing the manufacturing cost of the counterweighted keyboard that simulates the hammer effect.
[0038] Specifically, both the first counterweight 41 and the second counterweight 42 are counterweight blocks. The counterweight blocks have a simple structure and are easy to install, thereby simplifying the structure of the counterweight keyboard that simulates the effect of hammer-action piano keys, and further reducing the manufacturing cost of the counterweight keyboard that simulates the effect of hammer-action piano keys.
[0039] Specifically, the first counterweight 41 has a first mounting hole 411, and the white key 21 has a second mounting hole. The first counterweight 41 is fixed to the white key 21 by screws through the first mounting hole 411 and the second mounting hole. Understandably, the installation method using the first mounting hole 411, the second mounting hole, and the screws is simple and reliable, requiring only a screwdriver to install and remove the first counterweight 41. Furthermore, the screw installation method is mature and reliable, thereby improving the stability of the first counterweight 41 and reducing the manufacturing cost of the counterweight keyboard simulating the effect of hammer-action piano keys.
[0040] Furthermore, the white key 21 is provided with a mounting post 11, the second mounting hole is provided in the mounting post 11, the mounting post 11 is limited to the first mounting hole 411, and the first counterweight 41 is locked to the mounting post 11 by screws. By providing the mounting post 11, the threaded portion of the screw connector can be made longer, thereby further improving the stability and reliability of the screw connector connection.
[0041] Specifically, a first mounting cavity is formed on the side of the black key 22 facing the fixed bracket 10, and the second counterweight 42 is bonded to the cavity wall of the first mounting cavity. Understandably, the bonding method is stable, reliable, and low-cost, thus facilitating the installation of the second counterweight 42 and reducing the manufacturing cost of the counterweighted keyboard simulating the effect of hammer-action piano keys.
[0042] In one embodiment, the counterweight is made of iron. Iron is an inexpensive material and easy to process. Of course, in other embodiments, the counterweight can also be made of stainless steel, copper, aluminum, or an alloy of the above materials.
[0043] In one embodiment, the fixed bracket 10 is provided with a first limiting protrusion 12 and a second limiting protrusion 13. The ends of the white key 21 and the black key 22 furthest from the first elastic element are respectively provided with a first limiting hole and a second limiting hole. The first limiting protrusion 12 is limited within the first limiting hole, and the second limiting protrusion 13 is limited within the second limiting hole. It can be understood that the first limiting protrusion 12 and the second limiting protrusion 13 are used to limit the pressing degree of the white key 21 and the black key 22, preventing excessive pressing of the white key 21 and / or the black key 22 from damaging the first elastic element. They also aim to maintain the tone of the weighted keyboard simulating the effect of a hammer-action piano key within an ideal range, thereby improving the stability and service life of the weighted keyboard.
[0044] Specifically, the first elastic element is spring 23. The linear deformation of spring 23 provides predictable changes in resistance, which, combined with the inertia of the counterweight, creates a composite tactile feedback of "resistance + inertia" similar to that of a real piano. At the same time, spring 23 can withstand millions of presses and exhibits superior fatigue resistance compared to rubber or silicone elastic elements. This improves the tactile feedback and lifespan of the counterweighted keyboard that simulates the effect of hammer-action piano keys.
[0045] In one embodiment, the second elastic element is a silicone block 32. Understandably, when a user presses the white key 21 and / or the black key 22, the white key 21 and / or the black key 22 will press the corresponding second elastic element. At this time, the second elastic element will transmit the pressing signal of the white key 21 and / or the black key 22 to the circuit board 31. The circuit board 31 converts the pressing signal into an electrical signal, and ultimately into sound information transmitted to the listener's ear, resulting in a beautiful melody. The compression of the silicone block 32 is proportional to the pressing force, and its deformation is converted into an electrical signal by the circuit board 31; this provides more precise force detection than a simple spring 23, especially in the transition from soft to loud sounds, where it is more delicate.
[0046] In one embodiment, the fixing bracket 10 has a second mounting cavity formed on the side facing the black key 22 and / or the white key 21. Two mounting protrusions 14 are spaced apart on the cavity wall of the second mounting cavity. The circuit board 31 is fixedly mounted on the two mounting protrusions 14, and the second elastic member is connected to the side of the circuit board 31 opposite to the mounting protrusions 14. By providing mounting protrusions 14 instead of making the fixing bracket 10 a solid structure, the material used in the weighted keyboard simulating the effect of hammer-action keys is reduced, thereby lowering the manufacturing cost of the weighted keyboard simulating the effect of hammer-action keys. Furthermore, the weight of the weighted keyboard simulating the effect of hammer-action keys is reduced, which is beneficial for the lightweight design of the instrument.
[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.
Claims
1. A weighted keyboard that simulates the effect of hammer-action piano keys, characterized in that, include: Fixed bracket; White key and black key, both of which are elastically connected to the fixed bracket by a first elastic element; A circuit board, which is mounted on the fixed bracket; The second elastic element is connected to the circuit board. Each white key and each black key corresponds to a second elastic element. When the white key and / or the black key is pressed to contact the corresponding second elastic element, the corresponding second elastic element sends a pressing information to the circuit board to emit the corresponding tone. as well as The counterweights include a first counterweight and a second counterweight. The first counterweight is connected to the end of the white key away from the corresponding first elastic element, and the second counterweight is connected to the end of the black key away from the corresponding first elastic element.
2. The counterweighted keyboard simulating the effect of hammer-action piano keys as described in claim 1, characterized in that, Both the first counterweight and the second counterweight are counterweight blocks.
3. The counterweighted keyboard simulating the effect of hammer-action piano keys as described in claim 2, characterized in that, The first counterweight is provided with a first mounting hole, and the white key is provided with a second mounting hole. The first counterweight is fixed to the white key by the cooperation of the first mounting hole and the second mounting hole with a screw.
4. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 3, characterized in that, The white key is provided with a mounting post, the second mounting hole is provided in the mounting post, the mounting post is limited to the first mounting hole, and the first counterweight is locked to the mounting post by screws.
5. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 2, characterized in that, A first mounting cavity is formed on the side of the black key facing the fixed bracket, and the second counterweight is adhered to the cavity wall of the first mounting cavity.
6. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 2, characterized in that, The counterweight is made of iron.
7. The counterweighted keyboard simulating the effect of hammer-action piano keys as described in claim 1, characterized in that, The fixed bracket is provided with a first limiting protrusion and a second limiting protrusion. The white key and the black key are respectively provided with a first limiting hole and a second limiting hole at the ends away from the first elastic member. The first limiting protrusion is limited to the first limiting hole, and the second limiting protrusion is limited to the second limiting hole.
8. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 1, characterized in that, The first elastic element is a spring.
9. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 1, characterized in that, The second elastic element is a silicone block.
10. The weighted keyboard simulating the effect of hammer-action piano keys as described in claim 1, characterized in that, The fixing bracket has a second mounting cavity formed on the side facing the black key and / or the white key. Two mounting protrusions are spaced apart on the cavity wall of the second mounting cavity. The circuit board is fixedly mounted on the two mounting protrusions. The second elastic element is connected to the side of the circuit board away from the mounting protrusions.