KR20080004880U - Structure of Keyboard in Electronic Keyed Instrument - Google Patents

Abstract

The present invention relates to a keyboard structure of an electronic keyboard musical instrument that can not only feel an after-touch feeling similar to the after-touch feeling that is felt in an acoustic piano, but also minimize the impact applied to a player's finger from a hammer. The keyboard structure 1 of the electronic keyboard musical instrument according to the present invention, the keyboard 10 is installed rotatably on the frame (2); It is rotatably installed in the frame (2), and when the key 10 is pressed, the weight part 21 rotates in a state of applying a load to the key 10, the pressed state of the key 10 When released, the hammer member 20 to rotate to the original position by the weight of the weight portion 21; And an electrical contact 30 connected to the keyboard 10 when the keyboard 10 is pressed to a predetermined position. The keyboard structure includes a contact point, which is installed below the rotation path of the keyboard 10 and is connected to the electrical contact 30. A resilient elastic member 40 which applies an elastic resilience to the rotation of the keyboard 10 to provide an after-touch feeling; And / or a recoil prevention bearing which is installed at a position where the weight body 21 of the hammer member 20 that rotates in its original position by its own weight is returned, and absorbs the shock so that the collided weight body 21 does not recoil. It characterized in that it comprises a member (50).

Description

Structure of Keyboard in Electronic Keyed Instrument

1 is a view showing the key structure and operation of an exemplary electronic keyboard musical instrument according to the present invention.

2 is a view showing a conventional electronic piano keyboard structure to which a hammer is applied.

<Description of Symbols for Main Parts of Drawings>

1: Keyboard structure of the present invention 2: Frame

10: Keyboard 11: Turning

20: hammer member 21: parts by weight

23: rotating shaft 30: electrical contact

40: resilient elastic member 41: support portion

42: cylindrical portion 43: pressurizing portion

44: protrusion 50: rebound preventing member

51: hollow part

(Technology)

The present invention relates to an electronic keyboard musical instrument, and in particular to the keyboard structure of the electronic keyboard musical instrument, which can not only feel the after-touch feeling similar to the after-touch feeling found in an acoustic piano, but also minimize the impact applied to the player's finger from the hammer. It is about.

(Background)

With the development of electric and electronic technology, electronic instruments that generate the sound of traditional acoustic instruments using electronic devices have been widely developed. Pianos (or digital pianos, electric organs, etc.) have emerged.

Traditional acoustic pianos are played by generating sound by hammering the strings by the mechanical force of the keys, but the electronic piano stores digital electronic sounds corresponding to each key in electronic circuits in advance. The electrical contact is connected to play the principle that the corresponding sound is generated.

Depending on how the electronic piano is designed, the piano can play not only the piano sound but also the sounds of other instruments (violin, organ, trumpet, etc.), and in the case of the supplementary type, it is cheaper than the acoustic piano. It is widely used for learning.

Since an acoustic piano is a hammer that strikes a string when a key is pressed, there is a unique feeling (generally called a “touch”) that is transmitted from the hammer to the player's hand through the keyboard. Along with the development, it has continually evolved to provide the best touch to the player, and this touch on an acoustic piano has become one of the most familiar and important elements in piano performance.

In principle, many studies have been conducted to make the sound feel the same as the touch that is accumulated and accustomed to the acoustic piano even in the electric piano that does not require a hammer because sound is generated when the electric contact is connected by pressing a key.

One of the most representative technologies that make the electronic piano feel a touch is that the weight of the hammer is applied to the keyboard when the keyboard is operated by connecting a hammer (weight part) that is not necessary to make a sound to the keyboard like an acoustic piano. It is a keyboard structure to be transmitted.

FIG. 2 is a view showing a conventional electronic piano key structure to which a hammer is applied, where FIG. 2A is a diagram without pressing a key, and FIG. 2B is a diagram with a key pressed.

As shown in the drawing, the conventional electronic piano keyboard structure 100 has a structure including a frame 110, a keyboard 120, a hammer 130, and a contact 140.

One end of the keyboard 120 is rotatably installed on the bracket 111 of the frame 110, and the contact pressure part 121 and the hammer pressure part 122 are formed at a predetermined interval at the interruption of the key 120. When the other end of the keyboard 120 is pressed, the contact pressing unit 121 presses the contact 140 to generate a sound, and the hammer pressing unit 122 is rotatably installed to act on the operation unit 131. By pressing), the weight of the weight part 132 of the hammer 130 is applied to the keyboard 120, and finally, when the key 120 is pressed, a touch feeling similar to the touch feeling received from the hammer of the acoustic piano is felt.

However, although the conventional keyboard structure 100 as shown in FIG. 2 has an effect of obtaining a touch feeling similar to that of an acoustic piano, there is a problem that an after-touch feeling applied to the acoustic piano keyboard cannot be felt.

For example, in the case of an upright piano (a vertically mounted string), an acoustic piano, when the hammer strikes the string, when the key reaches a certain position, the path by which the force applied to the keyboard is transmitted to the hammer is cut off. The load on the hammer is removed, and this disconnection removes the weight of the hammer transmitted to the finger through the keyboard the moment the hammer strikes the string, making the player feel that the hammer hit the string ( In this sense, the sound is detected when the finger is generated, which is generally referred to as 'after touch feeling'), and in the case of the conventional keyboard structure 100 of FIG. 2, the weight of the hammer hits the keyboard from the beginning to the end. The problem is that you can't feel the aftertouch because it stays on and you can't play sensual and sophisticated. It is.

As a proposal for imparting an after touch feeling to the electronic piano keyboard, there is a 'keyboard structure of a digital piano' of Korean Patent Laid-Open Publication No. 10-2006-0082959 (published on July 20, 2006). The keyboard structure of the '959 has a step on the working part of the hammer contacting the hammer pressing part, so that the hammer pressing part is slightly dropped from the stepping part when sliding along the working part, so that it feels as an after-touch feeling.

In the '959's keyboard structure, you can feel the aftertouch of the acoustic piano's aftertouch similar to the drop in the step, but you'll get used to it because the hammer's load remains on the keyboard even after it's dropped in the step. There is a limit that the feeling is different from the aftertouch feeling of the acoustic piano.

Another problem with the conventional keyboard structure of FIG. 2 and the improved '959 keyboard structure is that, as in B of FIG. 2, the impact and vibration when the weight of the hammer strikes the frame (or its cushion) causes the keyboard to fail. It is directly transmitted to the player's finger through the impact on the player's hand, thereby making it easy to fatigue the hand, as well as the possibility of chronic injury to the finger joints.

That is, in the case of an acoustic piano, the path of the force transmission between the keyboard and the hammer is cut off while the hammer strikes the string, so that the impact of the hammer hitting the cushion of the frame and the like is transmitted directly to the player's finger through the keyboard. However, the conventional keyboard structure of Fig. 2 and the keyboard structure of '959 have a continuous connection of the force transmission path between the hammer and the keyboard, so that the impact generated when the hammer strikes the frame causes the finger of the player to play through the keyboard. Is passed on as is. This problem of impact is the same when the weight stops in the air without hitting the frame.

The inventors of the present invention to solve the problems of the prior art related to the key structure of the electronic keyboard musical instrument as described above, Korean Patent Application No. 10-2007-0038590 (Application Date: April 20, 2007. Priority Claim Date: 2007. 01 The keyboard structure of the electronic keyboard musical instrument was proposed in (15), and the keyboard structure of the '590 keyboard was constructed by the upper pen member and the jack member between the keyboard and the hammer member. Not only can you feel almost the same after-touch feeling, but it also minimizes the impact of the hammer on the player's finger through the keyboard to the level of an acoustic piano.

The object of the present invention is to solve the problems of the prior art related to the key structure of an electronic keyboard musical instrument, and not only can feel an after-touch feeling similar to the aster touch feeling, which is an essential element of an acoustic piano, but also a player through a keyboard from a hammer. To provide a keyboard structure of an electronic keyboard instrument that can minimize the impact transmitted to the finger of the acoustic piano to the level.

The object of the present invention is a simple improvement of adding an elastic support means to the rotation path of a keyboard and a hammer in relation to the keyboard structure of a conventional electronic keyboard musical instrument, in which a weight of a hammer is applied to a keyboard so that a touch is simply felt. Not only can you feel the aftertouch similar to the aster touch, which is an essential element of the acoustic piano, but also the keyboard structure of the keyboard that minimizes the impact transmitted from the hammer to the player's finger through the keyboard to the level of the acoustic piano. Is to provide.

According to the present invention, a keyboard structure of an electronic keyboard musical instrument is provided.

The keyboard structure of the electronic keyboard musical instrument according to the present invention, the keyboard rotatably installed in the frame; A hammer member rotatably installed on the frame, the pressing member being pressed to rotate in a state in which a weight portion applies a load to the keyboard, and the hammer member rotating to its original position by the weight of the weight portion when the key is released; And an electrical contact connected to the keyboard when the key is pressed to a predetermined position. As a keyboard structure of the electronic keyboard musical instrument comprising a,

A resilient elastic member 40 installed below the rotation path of the keyboard and providing an after-touch feeling by applying resilience to the rotation of the keyboard at a time when the electrical contact is connected; And / or a recoil preventing support member installed at a position where the weight body of the hammer member that is rotated by its own weight returns, and absorbing the impact so that the collided weight body does not recoil; It includes.

Preferably, the resilient elastic member is a support portion attached to the frame, a cylindrical portion integrally formed on the support portion, integrally formed on the cylindrical portion is formed integrally on the pressing portion to press the key and the pressing portion It is made of an elastic rubber including a protrusion in contact with the support in the buckling state, when pressed to provide the after-touch feeling by the resilient elasticity accompanying the buckling phenomenon.

Preferably, the anti-rebound support member is a pedestal shape of an elastic rubber having a hollow portion formed therein, and when the weight collides, the cushioning action of the elastic rubber, deformation of the hollow portion, and stretching of the upper side of the hollow portion Minimize recoil of the weight.

Hereinafter, with reference to the accompanying drawings will be described in detail the key structure of the electronic keyboard musical instrument according to the present invention. The following embodiments are merely illustrative of the keyboard structure of the electronic keyboard musical instrument according to the present invention, it is not intended to limit the scope of the present invention.

1 is a view showing the key structure and operation of an exemplary electronic keyboard musical instrument according to the present invention.

As shown in Figure 1, the key structure 1 of the electronic keyboard musical instrument according to the present invention according to the present invention, the keyboard 10, the hammer member 20 and the electrical contact 30, as in the conventional key structure It basically includes, and in accordance with the features of the present invention is configured to further include a resilient elastic member 40 and / or a rebound preventing support member 50, these members are the skeleton of the keyboard of electronic keyboard instruments, such as electronic piano It is appropriately arranged and mounted on the frame (2) forming the.

In the present invention, the electronic keyboard musical instrument is used to mean various electronic musical instruments that use a keyboard such as an electronic organ as well as an electronic piano described mainly below.

The keyboard 10 is a conventional keyboard widely used in electronic keyboard musical instruments. In the accompanying drawings, only one keyboard is shown for simplicity of the drawings.

As with the usual keyboard, one end (right end in the drawing) of the keyboard 10 of the present invention is rotatably provided to the frame 2. Since the rotational structure of the keyboard 10 corresponds to a general technique well known in the related art, a detailed description thereof will be omitted.

The hammer member 20 provided with the weight body 21 is provided in the lower side of the keyboard 10. As shown in FIG. The hammer member 20 is rotatably mounted on the pivot shaft 23 installed in the frame 2 in a seesaw manner, and on one side (left side in the drawing) is in contact with the protrusion 11 protruding from the lower side of the keyboard 10. The action part 22 is formed, and the weight part 21 which provides a touch feeling to the keyboard 10 is formed in the other side (right side of drawing).

According to the configuration of the keyboard 10 and the hammer member 20 as described above, in the state in which the keyboard 10 is not pressed, the working portion 22 rotates to the uppermost side and is in contact with the protrusion 11 of the keyboard 10 and the weight The part 21 rotates to the lowest side (A of FIG. 1). In this state, when the key 10 is pressed, the protrusion 11 presses the acting part 22 by the downward rotation of the key 10, and the weight part 21 rotates upward, while the player applies the weight to the key 10. A touch feeling can be felt by the load of the part 21 (B of FIG. 1).

When the key 10 is released, the weight portion 21 rotates downward by its own weight, and the action portion 22 rotates upward to restore the original position. Accordingly, the keyboard 10 also rotates to restore the original position.

The electrical contact 30 is a part of a conventional electronic keyboard musical instrument electronic circuit that is pressed by pressing the keyboard 10 so that the contact is connected to generate a sound corresponding to the corresponding keyboard 10.

The electrical contact 30 is, for example, installed in the rotation path of the keyboard 10 or the hammer member 20, and is pressed and operated when the keyboard 10 is pressed to a predetermined position. In the illustrated embodiment, the electrical contact 30 is an example installed below the acting portion 22 of the hammer member 20, whereby the acting portion 22 is above a predetermined position by pressing the keyboard 10. When rotated downward, the acting portion 22 presses the battery contact 30 to generate a corresponding sound. Although not shown, it is obvious that the same operation is performed even if the electrical contact 30 is installed at a different position such as below the rotation path of the keyboard 10 instead of the hammer member 20.

The resilient elastic member 40 is installed under the rotation path of the keyboard 10, and after applying the resilience to the rotation of the keyboard 10 at the time when the electrical contact 30 is connected to the downward rotation of the keyboard 10 It provides a touch feeling (see B of FIG. 1). In the illustrated embodiment, the resilient elastic member 40 is attached to the frame 2 positioned below the keyboard 10.

The resilient elastic member 40 is not particularly limited as long as the after-feel is felt by applying an appropriate rebound elasticity to the keyboard 10 at the time when the electrical contact 30 is connected. buckling: repulsive elastic member 40 made of a cylindrical elastic rubber so that when compressive load is applied to both ends of the column when the length of the column is larger than the dimension of the cross section, the column suddenly bends when the load reaches a certain size) It is an example.

The illustrated resilient elastic member 40 has a support portion 41 attached to the frame 2, a cylindrical portion 42 integrally formed on the support portion 41, and a cylindrical portion 42 integrally formed on the keyboard 10. And a projection 44 integrally formed on the lower surface of the pressing portion 43 and the pressing portion 43 pressed by the contact portion 41 in contact with the support portion 41 in the buckling state.

According to such a resilient elastic member 40, at the initial pressurization through the keyboard 10, while maintaining a constant rebound elasticity by the elasticity of the elastic rubber, while the cylindrical portion 42 buckles at the last moment, the keyboard 10 at the lowest point As a result, the player perceives the sense of the aftertouch feeling in the elastic deformation process.

The anti-rebound support member 50 is installed at the position where the weight body 21 of the hammer member 20 rotating to its original position collides, and in the illustrated embodiment, the frame 2 at the return point of the weight body 21 is shown. ) Is attached. The anti-rebound support member 50 serves to absorb the impact so that the weight body 21 hit against it does not rebound (see A in FIG. 1).

The anti-rebound support member 50 absorbs the impact of the weight body 21 so that the weight body 21 does not bounce back when the weight body 21 collides, so that the reaction of the weight body 21 is performed by the hammer member ( It is not particularly limited as long as it is a member that can be transmitted to the keyboard 10 through 20) to reduce the shock transmitted to the player's finger.

The anti-rebound support member 50 of the illustrated embodiment is formed by forming a hollow portion 51 therein while forming a material having a large impact shock-absorbing effect such as an elastic rubber (eg, silicone rubber) in a pedestal shape. When the weight 21 collides with the upper side of the 50, the deformation of the hollow part 51 and the expansion and contraction of the upper side (which becomes thinner when the impact is applied) together with the buffering action of the elastic rubber material Interact to minimize recoil of the weight body 21.

According to the key structure of the electronic keyboard musical instrument according to the present invention described above, not only can you feel the after-touch feeling similar to the aster touch feeling which is an essential element of the acoustic piano, but also the acoustic shock transmitted to the player's finger through the keyboard You can minimize the level of the piano.

In particular, according to the key structure of the present invention, a simple improvement in installing the resilient elastic member 40 and / or the anti-rebound support member 50 in the rotational path of the keyboard and the hammer is similar to the aster touch feeling which is an essential element of the acoustic piano. Not only can you feel the after-touch feeling, but the impact of the hammer on the player's finger through the keyboard can be minimized to the level of the acoustic piano.

Claims (4)

A keyboard 10 rotatably installed on the frame 2; It is rotatably installed in the frame (2), and when the key 10 is pressed, the weight part 21 rotates in a state of applying a load to the key 10, the pressed state of the key 10 When released, the hammer member 20 to rotate to the original position by the weight of the weight portion 21; And an electrical contact 30 connected to the keyboard 10 when the keyboard 10 is pressed to a predetermined position. In the keyboard structure of the electronic keyboard musical instrument comprising a, A resilient elastic member 40 installed below the rotation path of the keyboard 10 to provide repulsive elasticity to the rotation of the keyboard 10 at a time point at which the electrical contact 30 is connected; The keyboard structure of the electronic keyboard musical instrument, comprising a. 2. The method according to claim 1, wherein the weight member (21) of the hammer member (20) rotates in its original position by its own weight is installed at the position where the weight member (21) collided to absorb the impact so as not to recoil. Key structure of the electronic keyboard musical instrument, characterized in that it further comprises a rebound prevention support member (50). According to claim 2, wherein the resilient elastic member 40, the support portion 41 attached to the frame 2, the cylindrical portion 42 formed integrally on the support portion 41, the cylindrical portion 42 An elastic rubber including an urging portion 43 which is integrally formed to press the key 10 and a protrusion 44 which is integrally formed on the lower surface of the urging portion 43 and contacts the support portion 41 in a buckling state. It is made of, and when pressed to provide the after-touch feeling by the resilience with buckling phenomenon; The anti-rebound support member 50 has a pedestal shape of an elastic rubber having a hollow portion 51 formed therein. When the weight body 21 collides with each other, a cushioning action of the elastic rubber and the hollow portion 51 are provided. The key structure of the electronic keyboard musical instrument, characterized in that to minimize the reaction of the weight body 21 by the deformation and expansion of the upper side of the hollow portion (51). A keyboard 10 rotatably installed on the frame 2; It is rotatably installed in the frame (2), and when the key 10 is pressed, the weight part 21 rotates in a state of applying a load to the key 10, the pressed state of the key 10 When released, the hammer member 20 to rotate to the original position by the weight of the weight portion 21; And an electrical contact 30 connected to the keyboard 10 when the keyboard 10 is pressed to a predetermined position. In the keyboard structure of the electronic keyboard musical instrument comprising a, The anti-rebound support member 50 which is installed at the position where the weight body 21 of the hammer member 20 rotates by its own weight collides, and absorbs the impact so that the impacted weight body 21 does not rebound. ); The keyboard structure of the electronic keyboard musical instrument, comprising a.

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