A back-feel enhancement structure for an upright piano action

Abstract

This invention relates to a structure for enhancing the feel of an upright piano action, comprising a linkage lever, a push rod, and an adjustment stop. One end of the push rod is connected to the linkage lever via a shaft bracket. A main action stop is mounted on the linkage lever, located on one side of the push rod. An adjustment stop is located on the other side of the push rod. The key feature is that a push rod magnet is mounted in the middle of the push rod, and a main action stop magnet corresponding to one end of the push rod magnet is mounted on the main action stop. The push rod magnet and the main action stop magnet have different magnetic poles. This invention provides excellent feel after playing, ensures a clear tactile feedback during key presses, and facilitates improved performance for the player.

Description

Technical Field

[0001] This invention relates to the field of upright piano technology, and in particular to a structure for enhancing the back feel of an upright piano action. Background Technology

[0002] The conventional upright piano action mechanism must ensure that when a piano key is pressed, it drives a linkage lever, which in turn drives a push rod to push the hammer mechanism. The hammer mechanism strikes the strings, producing sound. This transmission works on the principle of leverage. When the player plays, the initial push is relatively stiff, and then the entire action mechanism is pushed according to the original pressing force. This results in a poor feel and affects the player's playing rhythm, making it unsuitable for high-level concerts. In order to improve the player's sense of rhythm and feel, and enhance their playing performance, the action mechanism structure needs to be improved. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a structure for enhancing the back feel of an upright piano action, which has a high back feel, ensures the tactile feedback during key presses, and facilitates improving the player's performance.

[0004] The technical solution adopted by this invention to solve its technical problem is: providing a structure for enhancing the feel of an upright piano action, including a linkage lever, a push rod, and an adjustment stop. One end of the push rod is connected to the linkage lever via a shaft bracket. A main action stop is mounted on the linkage lever, located on one side of the push rod. An adjustment stop is provided on the other side of the push rod. The key feature is that a push rod magnet is mounted in the middle of the push rod, and a main action stop magnet corresponding to one end of the push rod magnet is mounted on the main action stop. The push rod magnet and the main action stop magnet have different magnetic poles. By using a push rod magnet with the same magnetic poles at opposite ends and a main action magnet, an attractive force is generated between the push rod magnet and the main action magnet when the push rod approaches the main action. To ensure proper playing, the player will feel resistance from the action itself when pressing the key. Once the resistance is overcome, the attractive force allows the push rod to quickly come into contact with the main action, reducing the push rod's required thrust. At this point, the player will feel a sense of suspension, which is the desired escapement feeling for the player. This creates a sense of comfort and rhythm during playing, improving the player's feel and performance.

[0005] When a piano key is pressed, the key linkage pushes a linkage lever, which in turn pushes a push rod upward. When the push rod magnet and the main action magnet are aligned, they generate maximum repulsive force. Once the push rod rotates and overcomes this resistance, the player will feel a sense of suspension. When the finger leaves the key, the push rod returns to its original position under the action of a spring. When the push rod magnet aligns with the main action magnet, a repulsive force is generated, causing the push rod to quickly return to its original position.

[0006] As a supplement to this technical solution, the main action of the action is equipped with a rotating hammer shaft bracket, a rotating hammer cam is installed at one end of the rotating hammer shaft bracket near the top rod, and a damper rod is installed at the other end of the rotating hammer shaft bracket. By setting the rotating hammer cam and the damper rod, the main action of the action can drive the damper rod to perform a damping action.

[0007] As a supplement to this technical solution, a damper head is installed at the upper end of the damper rod. The damping action is achieved by pressing the string with the damper head.

[0008] As a supplement to this technical solution, a hammer structure is installed on the hammer cam. By setting the hammer structure, the hammer structure can strike the strings and produce sound.

[0009] As a supplement to this technical solution, the lower end of the push rod is connected to the shaft bracket via a rotating shaft, and the lower end of the push rod protrudes towards the adjustment gear side. A spring is provided between the lower side of the protrusion and the linkage lever. The upper end of the push rod abuts against the side of the rotary cam. The spring is used to achieve the reset of the push rod.

[0010] As a supplement to this technical solution, the rotor cam is provided with an extended brake block on the side near the adjustment gear, and the linkage lever is equipped with a support block corresponding to the brake block. By setting the support block, the rotor cam can be positioned.

[0011] As a supplement to this technical solution, the push rod magnet and the push rod are connected by threads. By setting the threads, the end extension of the push rod magnet can be adjusted, thereby adjusting the trigger position of the resistance.

[0012] As a supplement to this technical solution, the lower end of the damper rod extends to one side of the main action mechanism and abuts against that side of the main action mechanism, thereby ensuring that when the linkage lever is reset, the main action mechanism will cause the damper rod to reset.

[0013] As a supplement to this technical solution, an adjustment magnet corresponding to the top rod magnet is installed on one side of the adjustment gear, and the opposite ends of the adjustment magnet and the top rod magnet use the same magnetic pole.

[0014] Beneficial Effects: This invention relates to a structure for enhancing the feel of an upright piano action. By using a push rod magnet with identical magnetic poles at opposite ends and a main action magnet, an attractive force is generated between the push rod magnet and the main action magnet when the push rod approaches the main action. To ensure proper playing, the player will feel resistance from the action itself when pressing the keys. Once this resistance is overcome, the attractive force allows the push rod to quickly approach the main action, reducing the required thrust. At this point, the player will feel a sense of suspension, which is the desired escapement. This creates a sense of comfort and rhythm during playing, improving the player's feel and performance. It provides excellent feel after playing, ensures clear transitions during key presses, and facilitates improved performance. Attached Figure Description

[0015] Figure 1 This is a structural view of the present invention.

[0016] Diagram: 1. Linkage lever, 2. Shaft bracket, 3. Top rod, 4. Adjustment stop, 5. Support rod, 6. Top rod magnet, 7. Action master stop magnet, 8. Action master stop, 9. Brake wood, 10. Action cam, 11. Action shaft bracket, 12. Damper rod, 13. Damper head, 14. Hammer structure, 15. Adjustment stop magnet. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0018] Embodiments of the present invention relate to a back-feel enhancement structure for an upright piano action, such as... Figure 1As shown, the device includes a linkage lever 1, a push rod 3, and an adjustment stop 4. One end of the push rod 3 is connected to the linkage lever 1 via a shaft bracket 2. A main action mechanism 8 is mounted on the linkage lever 1, located on one side of the push rod 3. The adjustment stop 4 is located on the other side of the push rod 3. The device is characterized by having a push rod magnet 6 mounted in the middle of the push rod 3, and a main action mechanism magnet 7 corresponding to one end of the push rod magnet 6 mounted on the main action mechanism 8. The connection between the push rod magnet 6 and the main action mechanism magnet 7 is... Using different magnetic poles, this technical solution employs a push rod magnet 6 and an action mechanism master magnet 7 with opposite magnetic poles. When the push rod 3 approaches the action mechanism master magnet 8, the push rod magnet 6 and the action mechanism master magnet 7 attract each other, allowing the push rod 3 to quickly approach the action mechanism master magnet 8. When the player plays, because the push rod 3 is quickly attracted, the fingertips will feel a sense of suspension. This sense of suspension is the desired escapement for the player, creating a sense of comfort and rhythm during the playing process, improving the player's feel and performance.

[0019] When this technical solution is operated, the button is first pressed down, which pushes the linkage lever 1 through the lever principle. The top rod 3 of the linkage lever 1 rises up. At this time, the top rod 3 moves towards the action master 8 under the action of the pushing force and its own spring. When the top rod magnet 6 and the action master magnet 7 are aligned, they will generate an attraction, which will produce the back feel, that is, the tactile feedback during the button press. Then, the upper end of the top rod 3 will push the action cam 10. The action cam 10 rotates around the action shaft 11, causing the hammer structure 14 on the action cam 10 to rotate and strike the string. When the string is struck, the upper part of the action master 8 shifts towards the string, thereby driving the lower part of the damper 12 to move. Under the action of the lever principle, the damper head 13 at the upper end of the damper 12 can move away from the string.

[0020] In this technical solution, in order to improve the feel of the back hand, an adjustment magnet 15 corresponding to the push rod magnet 6 is installed on one side of the adjustment gear 4. The opposite ends of the adjustment magnet 15 and the push rod magnet 6 use the same magnetic pole. Since the magnetic poles are the same, the adjustment magnet 15 will generate a repulsive force, pushing the push rod 3 to quickly approach the main gear 8 of the action mechanism.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

Claims

1. A structure for enhancing the feel of an upright piano action, comprising a linkage lever (1), a push rod (3), and an adjustment stop (4), wherein the linkage lever (1) is connected to one end of the push rod (3) via a shaft bracket (2), a main action stop (8) is mounted on the linkage lever (1), the main action stop (8) is located on one side of the push rod (3), and an adjustment stop (4) is provided on the other side of the push rod (3), characterized in that: The top rod (3) is provided with a top rod magnet (6) in the middle, the total gear (8) is provided with a total gear magnet (7) corresponding to one end of the top rod magnet (6), one end of the top rod magnet (6) and the total gear magnet (7) adopt different magnetic poles, the top rod magnet (6) and the top rod (3) are connected through threads, the adjusting gear (4) is provided with an adjusting gear magnet (15) corresponding to the top rod magnet (6) on one side, and the adjusting gear magnet (15) and the opposite end of the top rod magnet (6) adopt the same magnetic pole.

2. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 1, characterized in that: The total gear (8) is provided with a turn striker shaft support (11), the turn striker shaft support (11) is provided with a turn striker cam (10) near one end of the top rod (3), and the other end of the turn striker shaft support (11) is provided with a mute rod (12).

3. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 2, characterized in that: The mute rod (12) is provided with a mute head (13) on the upper end.

4. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 2, characterized in that: The turn striker cam (10) is provided with a hammer structure (14).

5. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 2, characterized in that: The lower end of the top rod (3) is connected with the shaft support (2) through a rotating shaft, the lower end of the top rod (3) protrudes towards one side of the adjusting gear (4), a spring part is arranged between the lower side of the protrusion and the linkage lever (1), and the upper end of the top rod (3) is in abutment with one side of the turn striker cam (10).

6. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 2, characterized in that: The turn striker cam (10) is provided with an extended brake wood (9) near one side of the adjusting gear (4), and the linkage lever (1) is provided with a supporting wood (5) corresponding to the brake wood (9).

7. The vertical piano string striking machine's back hand feeling enhancement structure according to claim 2, characterized in that: The lower end of the mute rod (12) extends to one side of the total gear (8) and is in abutment with the side of the total gear (8).

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