JPH0854879A - Keyboard musical instrument - Google Patents

Abstract

PURPOSE:To provide a keyboard musical instrument which enhances the stability of electrical connection and the safety of a player when a control panel is operated during playing. CONSTITUTION:A panel surface 31 of the control panel 3 of an electronic piano is formed so as to face diagonally upward as to incline toward a player side. A keyboard cover 4 is composed of a keyboard cover body 41, a keyboard cover rear stay 42 and a keyboard cover triangle 43. The keyboard cover body 41 has a notched part 41a of an inverted U shape on the lower side. The space enclosed by the notched part 41a, the keyboard cover rear stay 42 and the keyboard cover triangle 43 constitutes a panel housing part 44. The keyboard cover 4 is supported freely turnably at a side plate 23 of the piano body 2 so as to cross the control panel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard musical instrument, and more particularly to a keyboard musical instrument having a musical tone generating means for electrically generating a musical tone signal in response to an operation of a control panel.

[0002]

2. Description of the Related Art Conventionally, as a keyboard instrument having a musical tone generating means for electrically generating a musical tone signal in response to an operation of a control panel, for example, one disclosed in Japanese Patent Laid-Open No. 62-182797 is known. There is.

This keyboard instrument has a keyboard on which a large number of keys are arranged, a keyboard lid whose one end is rotatably supported by the main body and which opens and closes so as to cover the keyboard, and an engraving on the back side of the keyboard lid. A control panel formed and mounted within the engraving. The control panel is connected to the control device by an electric cord so as to output a musical tone signal for controlling the volume, tone color, sound effect, etc. to the control device.

A similar keyboard instrument is disclosed in Japanese Utility Model Publication No. 63-109994. In this keyboard instrument, the back surface of the keyboard lid is formed flat, and a rectangular plate-shaped control panel is attached to substantially the center thereof.
A plurality of sheet-shaped switches are arranged on the control panel.

[0005]

However, since the above-mentioned conventional control panels are all fixed to the back side of the keyboard lid, an electric cord or the like for connecting the control panel and the control device each time the keyboard lid is opened and closed. Is bent and deformed. For this reason, when the opening / closing operation of the keyboard lid is repeatedly performed, the electric cord may be broken or the switch provided on the panel may have a bad contact, which may hinder the performance.

Further, when the performer presses a switch on the control panel during the performance, the force is also applied to the keyboard lid,
There is a risk that the keyboard lid may be accidentally rotated in the closing direction, in which case the performer has a risk of swiping his finger. The present invention has been made in view of the above problems, and an object of the present invention is to provide a keyboard musical instrument having improved stability of electrical connection and safety of a performer when a control panel is operated during performance.

[0007]

In order to solve the above-mentioned problems, the keyboard instrument of the present invention has a musical instrument body in which keyboards are arranged, and the musical instrument body at the position facing the player. A fixed control panel, and a musical tone generating means that is connected to the control panel and electrically generates a musical tone signal in response to an operation of the control panel,
A keyboard lid that is rotatably supported by the musical instrument body at a position where both ends straddle the control panel and that can be opened and closed with respect to the keyboard, and that is provided on the keyboard lid, and is in a state in which the keyboard lid is closed. And a panel accommodating portion that accommodates the control panel.

In such a keyboard instrument, since the keyboard lid and the control panel are independently supported by the instrument main body, the cord connecting the control panel and the musical tone generating means is bent even when the keyboard lid is opened and closed. Therefore, problems such as disconnection of cords and poor contact due to repeated opening and closing of the keyboard lid are eliminated, and electrical stability is ensured. Further, even if the control panel is operated, there is no possibility that the keyboard lid will move due to the operating force, so that the switch operation can be safely performed during the performance.

Further, the panel accommodating portion may be provided on the back side of the keyboard lid. Here, the back surface of the keyboard lid refers to the surface that faces the keyboard when the keyboard lid is closed. In this case, the aesthetic appearance of the keyboard instrument will not be impaired with the keyboard lid closed. Furthermore, the control panel may be formed obliquely upward so that the panel surface inclines toward the player. In this case, the player can easily perform the panel operation because the player can overlook the panel surface by slightly shifting the line of sight while sitting on the chair.

[0010]

1 to 3 show an example in which the keyboard instrument of the present invention is applied to a grand piano type electronic piano. FIG. 1 is a perspective view of the electronic piano, FIG. 2 is an explanatory view of a keyboard lid, and FIG. It is a principal part explanatory drawing of a keyboard instrument.

The electronic piano 1 of this embodiment comprises a piano body 2, a control panel 3, a keyboard cover 4, a microcomputer 5, a sound source 6 and the like. Electronic piano 1
1 substantially matches the appearance of the grand piano as shown in FIG. Here, the piano body 2 refers to the rest of the electronic piano 1 except for the control panel 3, keyboard lid 4, microcomputer 5, power source 6, etc., and includes the leg portion 21, pedal portion 22, side plate 23, and shelf. It is provided with a board 24, a time signature 25, a keyboard 26, a music stand 27, a large roof 28, and the like. Of these, the keyboard 26 is provided between the left and right time signatures 25 (only the left time signature is shown in FIG. 1) of the piano body 2, and the side plates 23 project to the left and right of the keyboard 26.

The control panel 3 has a time signature 25 on the left and right.
The panel surface 31 is formed obliquely upward so as to incline toward the player. As shown in FIG. 2, the keyboard lid 4 includes a keyboard lid main body 41 having a substantially L-shaped cross section,
The keyboard lid main body 41 is composed of a keyboard lid post-attachment 42 having a substantially corrugated cross section bonded to the front side, and a keyboard lid triangle 43 which is a substantially triangular plate material filling the space between the keyboard lid main body 41 and the keyboard lid post-attachment 42. To be done.

The keyboard lid body 41 is provided with a notched portion 41a which is formed in an inverted U-shape on the lower side except the portions facing the beat 25 on both the left and right sides of the piano body 2. The keyboard lid main body 41 is attached to the side plates 23 of the piano main body 2 which extend to the left and right sides via a rotary shaft 45. Therefore, the keyboard lid 4 can be opened and closed with respect to the keyboard 26. Further, a space surrounded by the inverted U-shaped cutout portion 41 a of the keyboard lid main body 41, the keyboard lid retrofit 42, and the keyboard lid triangle 43 constitutes a panel accommodating portion 44.

As shown in FIG. 3, the keyboard lid 4 has a piano body 2 in which the control panel 3 is housed in the panel housing portion 44, in other words, the keyboard lid 4 straddles the control panel 3. It is rotatably supported by the side plate 23. FIG. 4 shows a block diagram of a signal processing system of the electronic piano 1. As shown in FIG. 4, the signal processing system includes a microcomputer 5 including a well-known CPU, ROM, RAM, etc., a keyboard 26 for outputting key data to the microcomputer 5, and a microcomputer 5.
To the control panel 3 which outputs a tone signal to
Sound source 6 for inputting signals from the microcomputer 5
And an amplifier 7 that amplifies the acoustic signal output from the sound source 6.
And a speaker 8 for producing an amplified signal from the amplifier 7. The microcomputer 5 is installed inside the piano body 2, and is connected to the control panel 3, the keyboard 26, and the sound source 6 by an electric cord (not shown).

Next, the function and effect of this embodiment will be described. When the keyboard lid 4 is closed (see the chain double-dashed line in FIG. 3B), that is, when the keyboard lid 4 covers the keyboard 26,
Due to the presence of the keyboard lid retrofit 42, the inverted U-shaped notch 41a of the keyboard lid main body 41 is not visible from the outside, and therefore the keyboard lid 4 is no different from a general grand piano in appearance. However, on the back side of the keyboard lid 4, that is, the side facing the keyboard 26, the control panel 3 is placed in the panel housing portion 44.
Is housed.

When the performer plays, the keyboard lid 4 is first rotated and opened, and stopped at a position where the keyboard lid 4 forms a predetermined angle with respect to the keyboard 26 (see the solid line in FIG. 2B). At this time, since the keyboard lid 4 is provided with the panel accommodating portion 44, the keyboard lid 4 rotates smoothly without interfering with the control panel 3. Further, when the keyboard lid 4 is opened, the panel surface 31 of the control panel 3 faces the player.

When the performer operates the keyboard 26, the keyboard 26
Is output to the microcomputer 5, and the microcomputer 5 causes the sound source 6 to output a scale corresponding to the key data, and causes the speaker 8 to sound through the amplifier 7. When the performer operates the control panel 3 to set, for example, a tone color, a rhythm pattern, an automatic accompaniment, and a sound effect such as vibrato, the musical tone signal is output to the microcomputer 5, The microcomputer 5 causes the sound source 6 to output a tone color corresponding to the tone color and causes the speaker 8 to generate a sound through the amplifier 7.

In the present embodiment, the control panel 3 is independent of the keyboard lid 4 and has a time signature 25 on the piano body 2 side, that is, on the left and right.
Since the keyboard cover 4 is provided between the keyboard lid 4 and the player, the pressing force does not reach the keyboard lid 4 even if the player presses the panel surface 31 of the control panel 3, so that the keyboard lid 4 is not accidentally closed. As a result, the danger of the player hitting his finger with the control panel attached to the keyboard lid, which has been a problem in the conventional product, is eliminated, and the safety of the player when operating the panel is secured.

Even if the keyboard lid 4 is repeatedly opened and closed, the electric cord connecting the control panel 3 and the microcomputer 5 is not affected at all. As a result, electrical stability is secured without the possibility of problems such as wire breakage of the electric cord, which has been a problem in conventional products in which the control panel is attached to the keyboard lid.

Further, since the panel accommodating portion 44 is provided on the back side of the keyboard lid 4, the aesthetic appearance is not impaired when the keyboard lid 4 is closed. Furthermore, control panel 3
Since the panel surface 31 is formed obliquely upward so as to incline toward the player, the player can look over the panel surface 31 by slightly shifting the line of sight while sitting on a chair. Therefore, the panel operation can be easily performed.

Here, the microcomputer 5 and the sound source 6 of the above embodiment correspond to the musical tone generating means of the present invention. still,
It is needless to say that the present invention is not limited to the above embodiments and can be carried out in various modes within the technical scope of the present invention.

For example, in the above-described embodiment, the keyboard lid 4 is composed of a keyboard lid main body 41, a keyboard lid retrofit 42 and a keyboard lid triangle 43, and as shown in FIG. It may be 104. Also in this case, since the panel accommodating portion 144 similar to that in the above-described embodiment is formed, the same operational effect as that in the above-described embodiment can be obtained.

Further, in the above embodiment, the panel accommodating portion 44 is a space surrounded by the inverted U-shaped notch 41a, the keyboard lid rear attachment 42, and the keyboard lid triangle 43, but when the keyboard lid is opened and closed, the control panel is opened. The shape is not particularly limited as long as it is a spatial shape that does not interfere with.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic piano.

2A and 2B are explanatory views of a keyboard lid, FIG. 2A is a perspective view of the keyboard lid, and FIG. 2B is a cross-sectional view taken along the line AA.

3A and 3B are explanatory views of a main part of a keyboard instrument, FIG. 3A is a perspective view of the main part, and FIG. 3B is a sectional view taken along line BB.

FIG. 4 is a block diagram of a signal processing system.

FIG. 5 is a cross-sectional view of another keyboard lid.

[Explanation of symbols]

1 ... Electronic piano, 2 ... Piano body, 3 ... Control panel, 4 ... Keyboard lid, 5 ... Microcomputer, 6 ... Sound source,
23 ... side plate, 25 ... time signature tree,
26 ... Keyboard, 31 ... Panel surface, 41 ... Keyboard lid main body, 41a ... Notched portion, 42 ... Keyboard lid retrofit, 43 ...
..Keyboard lid triangles, 44 ... Panel accommodating parts,

Claims (3)

[Claims] 1. A musical instrument main body in which keyboards are arranged, a control panel fixed to the musical instrument main body at a position facing a performer, and a musical tone signal connected to the control panel and operated according to the operation of the control panel. And a keyboard lid that is rotatably supported by the instrument body at positions where both ends straddle the control panel and that can be opened and closed with respect to the keyboard. A keyboard accommodating section which is provided and accommodates the control panel in a state where the keyboard lid is closed. 2. The keyboard instrument according to claim 1, wherein the panel accommodating portion is provided on a back surface side of the keyboard lid. 3. The keyboard instrument according to claim 1, wherein the control panel is formed obliquely upward so that the panel surface is inclined toward the player.