KR100772122B1 - Stopper combination system of the digital piano - Google Patents

Abstract

A stopper combination device for preventing the keyboard trembling of a digital piano for an automatic performance is provided to prevent the keyboard trembling and a noise generated when a keyboard is originally located and allow a user to feel the same touch sense as a touch sense of a keyboard of an acoustic piano by automatically lifting a solenoid part fixed at an upper side of a plate. A frame(12) capable of supporting a pedestal member(22) is formed at an upper side of a plate(24). A supporting bracket(19) is coupled and fixed to an upper side of the pedestal member(22). A body(15) includes a frame supporting a bottom member on an upper side of the body, couples the supporting bracket(19) with an upper side of the bottom member to be fixed and fixes a rectangular cushion member to an upper side of the supporting bracket(19). The body(15) includes an upper plate and a lower plate, formed with a connecting member in one body, having a space part. The space part receives the trembling of the lower plate and offsets the vibration of a keyboard.

Description

Stopper combination system for key vibration prevention of digital pianos for automatic playing {Stopper combination system of the digital piano}

1 is a front view of the main portion of the present invention assembled.

Figure 2 is a perspective view of an enlarged state by extracting the main portion of the present invention.

3 is a perspective view of a state in which the main portion of the present invention is assembled.

4 is a front view of a state in which the main portion of the present invention operates.

Explanation of symbols on the main parts of the drawings

10. Black keyboard 11. White keyboard

12. Frame 13. Key PCB

14. Hammer member 15. Body

16. Fixing Jaw 17. Cushion Member

18. Fastening member 19. Support bracket

20. Double-sided tape 21. Fixing part

22. Base member 23. Connection bracket

24. Plate 25. Space

26. Connecting member 27. Top plate

28. Bottom plate 29. Recessed groove

30. Solenoid

The present invention relates to a keyboard anti-shake stopper coupling device for an automatic playing digital piano, and more particularly, to prevent vibration and various noises of the automatic keyboard generated when the keyboard is repositioned while the solenoid portion fixed on the upper plate is automatically raised. The present invention relates to a stopper coupling device for preventing keyboard shake.

Conventionally used digital pianos and acoustic pianos are one of the keyboard musical instruments, and it is well known that their types and shapes vary, and the keyboards of the digital pianos have a touch feeling similar to that of the keyboards of acoustic pianos. A lot of research is being done to make it possible.

The acoustic touch of the acoustic piano is such that when the player presses the key, the key rotates around the balance rail and lifts up the camstan screw installed on the opposite end of the key, whereby the whip pen is in contact with the camston screw. Rotate around the axis of rotation. At this time, the damper spoon installed at the rear end of the whip pen pushes the damper so that the damper falls from the strings, and the keyboard feels the first touch, and as the key is continuously pressed, the jack is rotated by the whip pen. The hammer is pushed up to move the hammer toward the string so that when the hammer reaches the closest position of the string, the jack is released from the bat just before the hammer reaches the string.

Thus, a second touch is felt on the keyboard when the jack is removed from the batt.

On the other hand, since the digital piano does not have the same mechanism as the acoustic piano's action mechanism and thus cannot obtain the same touch feeling as the acoustic piano, various methods are used to artificially feel the touch feeling similar to that of the acoustic piano. The representative method is to insert the metal pin-shaped weight body into the injection molded body integrally with the cover under the one end of the end of the key that is injection-molded by plastic, and to press the key on the other side of the keyboard operation part. It is comprised so that a touch feeling of a press part may work.

However, since the digital piano keyboards used in this way are mostly dependent on the weight body, the touch feeling caused by the pressing operation of the keyboard becomes worse than that of the acoustic piano. There is a shortcoming in expressing emotions, and there is also a problem that the touch is not good while the keyboard is shaken.

The present invention is to solve the above problems, while the solenoid portion fixed to the upper plate automatically rises while preventing the keyboard shake and noise generated when the keyboard is in place, the same touch sense of the acoustic piano keyboard feel It is an object of the present invention to provide a stopper coupling device for preventing the shaking of the keyboard.

In order to achieve the above object, to form a bracket that is integrally connected to the keyboard to operate, the connection bracket is raised by the keyboard touch is in close contact with the cushion member coupled to the fixed jaw of the body fixed to the lower side of the support bracket of the keyboard The present invention relates to a keyboard anti-shake stopper coupling device for an automatic playing digital piano, characterized in that the vibration is canceled, the vibration and noise are absorbed, and a stopper function is provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a state in which the main portion of the present invention is assembled, FIG. 2 is a perspective view of a state in which the main portion of the present invention is extracted and enlarged, FIG. 3 is a perspective view of a state in which the main portion of the present invention is assembled, and FIG. It is a front view of the state in which the main part of this invention operates.

First, as shown in FIG. 1, the present invention forms a solenoid 30 on the upper side of the plate 24, but the solenoid 30 is configured to automatically raise the keyboard 10.

In addition, as shown in FIG. 1, a frame 12 capable of supporting the support member 22 is formed on the plate 24, which is mounted on a large plate (not shown), and is supported on the support member 22. The bracket 19 is fastened by fixing.

In addition, the upper end of the support bracket 19 forms a body 15 capable of fixing the cushion member 17 of the rectangular body.

At this time, the body 15 is composed of an upper plate 27 and a lower plate 28 formed integrally with the connecting member 26, and also has a separate space portion 25.

In addition, the fixing plate 21 and the fixing jaw 16 for attaching the cushion member 17 is formed on the surface of the lower plate 28, the upper side of the upper plate 27 is coupled to the support bracket 19 is coupled It is a structure which forms the recessed groove 29 for engaging the member 18. As shown in FIG.

On the other hand, the cushion member 17 to be in close contact with the surface fixing portion 21 of the lower plate 28 is preferably formed of a wool material, and is configured in the shape of a rectangular body. In addition, after attaching the double-sided tape 20 to the back of the cushion member 17, the fixing member 21 is attached to the surface.

And, the space portion 25 formed between the upper plate 27 and the lower plate 28 is made by the connecting member 26, the space portion 25 accommodates the elastic movement of the lower plate 28. can do.

That is, the portion of the connection bracket 23 fixed and acting integrally with the keyboard 10 moving in the synergistic action of the solenoid 30 is in close contact with the cushion member 17 of the body 15 to offset and absorb the vibration of the keyboard. It is a configuration that can be done.

As a result, the load on which the player presses the keyboard is transmitted to the connection bracket 23 and the cushion member 17, and the vibration is canceled by the space 25 formed in the body 15, while feeling the touch. Due to this, you can feel the touch of the keyboard more effectively.

Referring to the operation and effects of the present invention made of the above configuration in detail as follows.

First, when the user presses the keyboard 10, the solenoid 30 is automatically raised to raise the connection bracket 23 formed integrally with the keyboard 10.

At this time, the portion of the connection bracket 23 rising as shown in FIGS. 1 and 4 is in close contact with the cushion member 17 formed in the body (15).

And, the body 15 is coupled to the support member 22 and the support bracket 19 formed on the plate 24 as shown in Figure 1 is fixed integrally.

On the other hand, the body 10 is fixed to one side of the support bracket 19 is formed of the upper plate 27 and the lower plate 28, and can also absorb vibration between the upper plate 27 and the lower plate 28. It consists of a separate space 25.

At this time, by attaching the cushion member 17 to the fixing jaw 16 of the lower plate 28, the friction vibration of the connection bracket 23 formed integrally with the keyboard 10 may be primarily offset.

And, when the friction with the connecting bracket 23, the lower plate 28 portion can be canceled secondary vibration while pushing into the space 25.

That is, the space 25 which is generated while the upper plate 27 and the lower plate 28 constituting the body 15 are integrally formed through the connecting member 26 is a space capable of absorbing the vibration of the keyboard 10. Can act as

In addition, the fixing jaw 16 formed on the surface of the lower plate 28 and the cushion member 17 attached to the fixing portion 21 are directly rubbed with the connection bracket 23 formed with the keyboard 10, thereby making noise and vibration. It will act to absorb.

As a result, the player can feel the touch feeling when the damper operates in the keyboard of the acoustic piano through the cushion member 17 and the space 25 formed in the body 15.

As a result, the keyboard structure of the present invention has a feature that can prevent various noises with a touch feeling that is exactly the same as or similar to the touch feeling that can be felt in the keyboard of an acoustic piano.

The present invention described above is capable of various substitutions and modifications within the scope without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, the foregoing embodiments and the accompanying drawings. It is not limited to.

According to the configuration of the present invention, the solenoid portion fixed to the plate upper side is automatically raised while vibrating at a position to feel the touch of the keyboard while preventing the automatic key tremor occurring when the key is repositioned. By forming a body having a cushion member that can offset the can be reproduced the same touch feeling of the acoustic piano keyboard, and also has the feature to prevent noise.

In addition, in the process of assembling the keyboard, the structure may be simplified and yet configured in a rigid form, thereby significantly reducing the cost of maintenance while improving efficiency with workability of the product.

Claims (3)

In the digital piano keyboard in which a load is formed on the black and white keys which are injection molded from plastic, A frame for supporting the support member is formed on the upper side of the plate, and the support bracket is fastened to the upper side of the support member, and the upper end of the support bracket forms a body for fixing the cushion member of the rectangular body. The body is formed integrally with the connecting member and consists of an upper plate and a lower plate having a space portion, wherein the space portion of the digital piano for automatic playing, characterized in that configured to offset the vibration of the keyboard while receiving the vibration of the lower plate Stopper coupling device for key shake prevention. The method of claim 1, Forming a fixing portion and fixing jaw for attaching the cushion member on the surface of the lower plate, and to form a recess groove for engaging the fastening member coupled to the support bracket on the upper side of the upper plate Stopper combiner for key tremor in digital pianos for automatic playing. The method of claim 1, The cushioning member to be adhered to the surface fixing portion of the lower plate is formed of a rectangular shape and a material of wool and attached to the back of the cushioning member, and then attached to the surface of the fixing portion. Stopper combination device for keyboard shake of automatic playing digital piano.

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