CN210925453U

CN210925453U - Mechanical linkage device for piano playing and special central disc

Info

Publication number: CN210925453U
Application number: CN201921557507.1U
Authority: CN
Inventors: 徐鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-03
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to an inside device of musical instrument, especially the mechanical aggregate unit and special center are played to the piano. The string-striking machine comprises a string-striking machine, a keyboard and a central disc, wherein the central disc is provided with the keyboard and a keyboard tail cushion block; the lower part of the string striking machine is fixed on a keyboard tail cushion block; the central disc is made of a metal material or a carbon fiber plate. The stable metal middle disc cannot change due to the change of the environment, a string striking machine cushion block is omitted, and the string striking machine is directly fixed on a keyboard tail cushion block, so that the string striking machine and the keyboard become a whole. The string-striking machine and the keyboard are connected to form a keyboard tail cushion block, the keyboard tail cushion block is made of solid wood, the only change possibility is the stretching change of wood, but the relative relation between the keyboard and the string-striking machine is unchanged, and the influence on the hand feeling and the mechanical linkage sensitivity of the piano is avoided.

Description

Mechanical linkage device for piano playing and special central disc

Technical Field

The utility model relates to an inside device of musical instrument, especially the mechanical aggregate unit and special center are played to the piano.

Background

The piano playing mechanical linkage part mainly comprises a string striking machine: a linkage device for striking a string; keyboard: keys played by the user; a middle plate: a base plate for fixing the action machine and the keyboard; the structure is required to be stable and not deformed.

The player presses the keyboard keys, the tail of the keyboard tilts to push the string striking machine, and the piano hammer strikes the strings to produce sound through the force conversion of the mechanical shaft. The middle disc is the foundation for fixing the string striking keyboard. The associated data of the installation of the action keyboard is associated on the keyboard. Once the key board is changed, all the linkage data are changed, which affects the use of the player and even the normal playing function.

The traditional structure is shown in fig. 4, wherein the string-striking machine-the string-striking machine cushion block-the wood board central disc, the keyboard-the keyboard tail cushion block-the wood board central disc; the string beating machine is connected with the wood plate through the cushion block. The keyboard and the action are relatively independent and are not related. When the middle disc deforms, data between the string striking machine and the keyboard changes, and the piano hand feeling and the mechanical linkage sensitivity are affected.

A stable piano center becomes a key to solve such problems.

Disclosure of Invention

An object of the utility model is to provide a mechanical aggregate unit is played to piano and special center disk to solve above-mentioned technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

the mechanical linkage device for playing the piano comprises a string striking machine, a keyboard and a central disc, wherein the central disc is provided with the keyboard and a keyboard tail cushion block; the lower part of the string striking machine is fixed on a keyboard tail cushion block;

the central disc is made of a metal material or a carbon fiber plate.

Preferably, the central disc is made of aluminum alloy, stainless steel, iron square tubes and white steel square tubes.

Preferably, the central panel comprises a frame, and the frame comprises a cross beam and a vertical beam, and the cross beam and the vertical beam enclose the frame;

and reinforcing ribs are arranged between the cross beams and the vertical beams.

Preferably, the reinforcing ribs are uniformly arranged along the length direction of the cross beam, and the number of the reinforcing ribs is 3-7.

A special center plate of a mechanical linkage device for playing a piano is made of a metal material or a carbon fiber plate.

Preferably, the central disc is made of aluminum alloy, stainless steel, iron square tubes and white steel square tubes. .

Compared with the prior art, the beneficial effects of the utility model are that: the high-strength stable middle disc cannot change due to the change of the environment, a string striking machine cushion block is omitted, and the string striking machine is directly fixed on a keyboard tail cushion block, so that the string striking machine and the keyboard become a whole. The string-striking machine and the keyboard are connected to form a keyboard tail cushion block, the keyboard tail cushion block is made of solid wood, the only change possibility is the stretching change of wood, but the relative relation between the keyboard and the string-striking machine is unchanged, and the influence on the hand feeling and the mechanical linkage sensitivity of the piano is avoided.

Drawings

Fig. 1 is a schematic structural view of a piano playing mechanical linkage of the present invention;

FIG. 2 is a schematic structural view of a center plate;

FIG. 3 is a side view of the center plate;

FIG. 4 is a schematic structural view of a conventional piano playing mechanical linkage;

wherein: the string-striking machine comprises a string-striking machine 1, a keyboard 2, a central disc 3, a frame 310, a cross beam 311, a vertical beam 312, a reinforcing rib 313, a keyboard tail cushion block 4 and a string-striking machine cushion block 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1:

the mechanical linkage device for playing the piano comprises a string striking machine 1, a keyboard 2 and a middle disc 3, wherein the keyboard 2 and a keyboard tail cushion block 4 are arranged on the middle disc 3; the lower part of the string striking machine 1 is fixed on a keyboard tail cushion block 4;

the middle plate 3 is made of high-strength composite plates such as metal materials or carbon fiber plates, and the metal materials are preferably metal tubes with rigidity characteristics such as aluminum alloy, stainless steel, iron square tubes and white steel square tubes in the application.

According to the piano playing mechanical linkage device, a string striking machine cushion block 5 (shown in figure 4) is omitted, and a string striking machine 1 is directly fixed on a keyboard tail cushion block 4, so that the string striking machine 1 and a keyboard 2 become a whole. The stability of the middle disc 3 made of high-strength material cannot be changed due to the change of the environment; the joint of the string striking machine 1 and the keyboard 2 is also a keyboard tail cushion block 4; the component is solid wood, the only change possibility is the expansion change of wood, and when the keyboard tail cushion block 4 changes, the relative relation between the keyboard 2 and the action 1 is unchanged because the component is the same.

Further, in order to improve the stability of the middle plate 3, the application provides a special middle plate, the middle plate 3 can be made of any non-deformable metal material or high-strength composite plates such as carbon fiber plates, and the metal material is a metal pipe with a rigid characteristic, such as aluminum alloy, stainless steel, iron square pipes, white steel square pipes, and the like.

Further, as shown in fig. 2 and 3, the center panel 3 of the present application includes a frame 310, the frame 310 includes a cross beam 311 and a vertical beam 312, and the cross beam 311 and the vertical beam 312 enclose a rectangular frame; the rectangular frame is circumferentially provided with mounting holes; a reinforcing rib 313 is arranged between the cross beam 311 and the vertical beam 312; the reinforcing ribs 313 can ensure the overall stability of the middle disc 3; the reinforcing ribs 313 are uniformly arranged along the length direction of the cross beam 311, and the number of the reinforcing ribs 313 is 3-7, preferably 5 in the application.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Mechanical aggregate unit is played to piano, including action (1), keyboard (2) and well dish (3), its characterized in that: the middle disc (3) is provided with a keyboard (2) and a keyboard tail cushion block (4); the lower part of the action (1) is fixed on a keyboard tail cushion block (4);

the middle disc (3) is made of a metal material or a carbon fiber plate.

2. The piano playing mechanical linkage according to claim 1, wherein: the middle disc (3) is made of aluminum alloy, stainless steel, iron square tubes and white steel square tubes.

3. The piano playing mechanical linkage according to claim 1, wherein:

the middle disc (3) comprises a frame (310), the frame (310) comprises a cross beam (311) and a vertical beam (312), and the cross beam (311) and the vertical beam (312) enclose the frame (310);

and reinforcing ribs (313) are arranged between the cross beam (311) and the vertical beam (312).

4. The piano playing mechanical linkage according to claim 3, wherein:

the reinforcing ribs (313) are uniformly arranged along the length direction of the cross beam (311), and the number of the reinforcing ribs (313) is 3-7.

5. A special center plate of a mechanical linkage device for playing a piano is characterized in that: the middle disc (3) is made of a metal material or a carbon fiber plate.

6. The special purpose keybed according to claim 5, wherein: the middle disc (3) comprises a frame (310), the frame (310) comprises a cross beam (311) and a vertical beam (312), and the cross beam (311) and the vertical beam (312) enclose the frame (310);

7. The special purpose keybed according to claim 6, wherein: the reinforcing ribs (313) are uniformly arranged along the length direction of the cross beam (311), and the number of the reinforcing ribs (313) is 3-7.

8. The special purpose keybed according to claim 5, wherein: the middle disc (3) is made of aluminum alloy, stainless steel, iron square tubes and white steel square tubes.