JPS63187294A - Keyed instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is applicable to upright pianos, grand pianos, etc. iI board musical instruments, electronic! To improve an A-keyboard instrument, especially a keyboard instrument that can be played simultaneously with an electrophonic instrument such as an electronic keyboard instrument.

(Prior Art) In recent years, it has been proposed that a keyboard instrument that belongs to natural instruments, such as a grand piano, is interconnected with other electrophonic instruments so that they can be played simultaneously.

Conventional keyboard instruments of this type include grand pianos, which have a normal mechanical vibration sound source that mechanically transmits key movements through an action mechanism to drive hammers, and strike strings to produce sound, and electronic keyboard instruments. Some devices are equipped with a key press detection circuit that detects key press operations, such as a key switch circuit that is normally included in a conventional key switch circuit. This key press detection circuit is connected via a cable to an input terminal of a tone generation circuit of an electronic keyboard instrument via an output terminal. In this case, the electronic keyboard instrument is connected to the sound system by a cable.

Therefore, in this grand piano, sounds are generated from the mechanical vibration sound source in response to key press operations. At the same time, the key press detection circuit outputs a key press signal corresponding to the key press operation to the electronic keyboard instrument, and the sound system also generates a sound based on the musical tone signal generated by the musical tone generating circuit of the electronic keyboard instrument.

In other words, it is possible to play a grand piano and an electronic keyboard instrument simultaneously.

However, in conventional grand pianos like this, the piano and the electronic keyboard instrument were separate, and the switches for adjusting the pronunciation from the sound system were located on the electronic keyboard instrument, so the piano player In order to adjust the sound produced by the sound system, the performer must move to the location where the electronic keyboard instrument is located and operate the buttons, knobs, and other controls attached to the adjustment switches. did not become. However, since operating this switch during a performance means interrupting the performance, it is not possible to adjust the musical tone signals generated by the electronic keyboard instrument during the performance.
The problem was that musical expression was restricted.

Therefore, in the specification of Japanese Patent Application No. 61-25231, the applicant of the present application provided an operator section on the keyboard lid for controlling the timbre, volume, etc. of musical tone signals in an electrophonic instrument, thereby detracting from the appearance of the instrument itself. We have already proposed a keyboard instrument with improved operability without compromising the versatility of its components.

That is, in the keyboard instrument according to the prior application, as shown in FIG. 4, a recess 5 of a predetermined depth is formed in the back surface 3 of the keyboard lid 1, and the switch body 7 is fitted and attached into the recess 5. It is something. In the figure, 9 is a panel and 11 is a switch. This switch 11 includes a switch that is operated during performance (a switch for adjusting the sound output from the sound system) and a switch that is operated during programming before performance.

The reason why the switch bodies 7 are arranged in such a concentrated manner on the keyboard lid 1 is to consider the ease of operation, visibility, ease of mounting, etc. of the switches 11.

(Problem to be Solved by the Invention) However, in the case of the keyboard instrument according to the prior application, a large number of switches are not very large in area, and are located on the back of the keyboard lid (or on the back of the keyboard close to the keyboard). Since these switches are arranged in a large number on the keys (presses), there is a problem in that it is easy to mistouch (erroneously operate) these switches during a performance (when actually pressing a key).

(Means for Solving the Problems) Therefore, the first invention according to this application provides a plurality of information transmitting means disposed close to the keyboard and operating information sending means for supplying musical tone control information to the musical tone generating means. In a keyboard instrument equipped with switch circuits, the plurality of switch circuits are
It is composed of at least two switch circuit groups, a switch circuit group and a second switch circuit group, and the operator of the first switch circuit group is located close to the keyboard, and the operator of the second switch circuit group is located close to the keyboard. The operators of the first switch circuit group are arranged at positions further away from the keyboard than the operators of the first switch circuit group, and the first switch circuit group plays a keyboard instrument whose response starts later than that of the second switch circuit group. The purpose is to solve the above problems by providing the following.

Further, a second invention according to this application provides a keyboard instrument comprising a plurality of switch circuits disposed close to a keyboard and operating an information sending means for supplying musical tone control information to a musical tone generating means, The plurality of switch circuits are composed of at least two switch circuit groups, a first switch circuit group and a second switch circuit group, and the operator of the first switch circuit group is located close to the keyboard. in position, second
The operators of the switch circuit groups are respectively arranged at positions farther away from the keyboard by H than the operators of the first switch circuit group, and a non-S period occurs between the first switch circuit group and the information sending means. The object is to solve the above problems by providing a keyboard instrument with intervening means.

(Operations and Effects) In the keyboard instrument according to the first invention of the present application, the operators of the first switch circuit group among the plurality of switch circuits are arranged at a position close to the keyboard. Further, the operators of the second switch circuit group are arranged at positions farther from the keyboard than those of the first switch circuit group. As a result, the possibility of mistouching of the operators of the second switch circuit group during key press operations is reduced. Even if the operator of the first switch circuit group is touched incorrectly, the switch is slow to start sensing, so it will not respond to a momentary touch and the actual operation will be delayed, reducing the possibility that the performance will be adversely affected. . That is, as a whole, there is no possibility of erroneous operation of the switches required during the performance of the keyboard instrument.

Further, in the keyboard instrument according to the second invention of the present application, the operators of the first switch circuit group among the plurality of switch circuits are arranged at a position close to the keyboard. Also, the second
The operators of the first switch circuit group are arranged at a distance of H from the keyboard than those of the first switch circuit group. As a result, the possibility of mistouching of the operators of the second switch circuit group during key press operations is reduced. Even if the operator of the first switch circuit group makes a mistake, since the dead period generating means is interposed between the first switch circuit group and the information sending means, the dead period generating means will cause a certain period of time to be touched. The information sending means does not operate. Therefore, as in the first invention, there is no adverse effect on the performance.

(Example) Embodiments of the present invention will be described below based on the drawings.

1 to 3 show an embodiment of a keyboard instrument according to the present invention.

In these figures, 21 indicates a grand piano, 2
3 is the keyboard section of this piano 21, and 25 is this keyboard section 23.
The keyboard lid, which opens and closes, is shown.

As shown in FIG. 2, when the keyboard lid 25 is in the closed state, its back surface 27 faces the keyboard section 23 at a predetermined distance. A switch body 29, that is, a control panel 29 in the shape of a rectangular plate, is attached to approximately the center of the back surface 27 of the keyboard lid 25.

FIG. 3 shows this panel 29.

As shown in FIG. 3, the control panel 29 constitutes a part of information sending means on its front surface, and a plurality of switches (operators) 31 and the like for operating the means are arranged. Further, each of these switches 31 is formed of a sheet-like switch.

For example, a conductive sheet may be arranged on a pattern formed on Mylar with an insulating sheet interposed therebetween.

Therefore, the thickness of the control panel 29 is extremely thin.

Furthermore, these switches 31 include a first switch group 311 for programming and a second switch group 3 for performance.
12. Second switch group 31 for performance
2 is for controlling the volume, tone, effect, etc. of the musical sound signal generated by the electronic keyboard instrument, and includes a volume control switch;
It consists of a modulation weight switch, etc.

Note that the first switch group 311 for programming is
It is operated only during programming before performance.

Then, as shown in FIG. 3, the first switch group 311
are located closer to the keyboard 23, and the second switch group 312 is located further away from the keyboard 23 than the first switch group 311. That is, the first switch group 311 is located below the control panel 29, and the second switch group 312 is located at the bottom of the control panel 29.
are arranged in rows and above the switch group 311, respectively.

Further, the first switch group 311 is made up of switches with poor responsiveness, and the second switch group 312 is made up of switches with better responsiveness than the first switch group 311. In other words, the first switch group 31
1 has a slower start of response than the second switch group 312.

The control panel 29 also includes these switches 3.
A control circuit that outputs musical tone control information in response to the operation No. 1 is built-in. Furthermore, an infrared remote control light emitting unit is mounted inside the panel 29, and the output from the control circuit is sent from the unit as an infrared light to the electronic keyboard instrument 4.
4 receiver. Although this embodiment uses infrared rays, other signals such as ultrasonic waves may also be used.

Incidentally, suction bodies (suction cups) are fixed to the back surface of the control panel 29, and the panel 29 is attached to the back surface 27 of the keyboard lid 25 by these suction bodies.

On the other hand, the grand piano 21 includes a mechanical vibration sound source that generates musical sounds by transmitting key movements by mechanical means. The piano 21 also includes a plurality of key switch circuits that detect key press operations, and a key data sending circuit that outputs key data representing a pressed or M-keyed key by detecting the output of the key switch circuits. It has a built-in.

This key data sending circuit is connected to the M
It is connected to an IDI terminal, and from this MIDI terminal is connected to an electronic keyboard instrument 44 or a built-in musical tone generation circuit.

The musical tone generating device of the electronic keyboard instrument 44 generates a musical tone signal of a pitch corresponding to the pressed key based on the key data output from the key data sending circuit, and also generates a musical tone signal having a pitch corresponding to the pressed key. ) controls the timbre, volume, effects, etc. of the musical tone signal generated based on the The musical tone signal generated by this musical tone generator is outputted to a sound system 51 comprising an amplifier, a speaker 49, etc., and is produced as a musical tone.

As described above, the piano 21 generates sound from the mechanical vibration sound source in response to the player's key press operations, and upon receiving the output signal from the key data sending circuit, the electronic keyboard instrument 44 transmits musical tone signals corresponding to the key press operations to the sound system. 51, and the system 51 generates sound.

Therefore, the player can simultaneously obtain performance sounds consisting of the grand piano sound as a natural instrument and the electronic music sound by performing the same piano performance as usual. In this case, the performance sound of the electronic musical tone is adjusted using the switch 31 of the control panel 29 attached to the keyboard lid 25 in front of the performer, while checking visually and comparing the performance sound. be able to. As a result, various musical expressions can be easily performed during simultaneous performance.

Furthermore, in this case, since the second switch group 312 used during performance is arranged above the control panel 29, that is, away from the keyboard 23, it is possible to mistouch these switches 31.2 when pressing a key. almost disappears.

On the other hand, the first switch group 311 may be mistouched when a key is pressed, but since this switch group 3111 is constructed of a switch circuit that starts sensing slowly, a momentary touch within a predetermined time will cause the key to respond incorrectly. is late,
Even if you mistouch, it will not react to this.

Further, FIGS. 5 and 6 show other embodiments of the present invention. In FIG. 5, dead period generating means 71 is interposed between the first switch circuit and the information sending means, and is composed of a comparator 73, a resistor 75, and a capacitor 77. The comparator 73 compares the voltage when the switch 311 is turned on with a reference voltage.

Then, as shown in FIG. 6, when the switch 311 is touched for a predetermined period of time, the comparator 73 produces a predetermined output.

The other configurations are the same as those of the above embodiment. Furthermore, the means for generating a dead period is not limited to the above-mentioned analog integrating circuit;
It goes without saying that this can also be achieved by program processing using a microcomputer, for example.

Although the above embodiments show examples of application of the present invention to natural musical instruments, it goes without saying that the present invention can also be applied to electronic keyboard instruments.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a keyboard instrument according to an embodiment of the present invention together with other electrophonic instruments, FIG. 2 is a sectional view showing a keyboard lid according to an embodiment, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a sectional view showing a keyboard lid of a keyboard instrument according to the prior application; FIG. 5 is a front view showing a control panel according to an example of the present invention; FIG. The circuit diagram and FIG. 6 are graphs showing the relationship between voltage and time in the dead period generating means according to another embodiment. 21...Grand piano, 23...Keyboard section, 25...A-board lid, 27...Back side of keyboard lid, 31... ...Switch, 311...First switch group, 312...
...Second switch group, 71... Dead period generating means. Patent applicant: Agent of Nippon Musical Instruments Co., Ltd.
Kiyoshi Kuwai, Patent Attorney - Fig. 2 Cross-sectional view of the first embodiment 25: Keyboard 1 Fig. 3 Cross-sectional view of the control panel of the first embodiment;

Claims (2)

[Claims] (1) In a keyboard instrument provided with a plurality of switch circuits arranged close to the keyboard and operating an information sending means for supplying musical tone control information to a musical tone generating means, the plurality of switch circuits are arranged in the first a group of switch circuits,
and a second switch circuit group, the operator of the first switch circuit group is located close to the keyboard, and the operator of the second switch circuit group is located close to the keyboard. located further away from the keyboard than the operators of the switch circuit group.
A keyboard instrument characterized in that the first switch circuit group has a slower start of response than the second switch circuit group. (2) In a keyboard instrument provided with a plurality of switch circuits disposed close to the keyboard and operating an information sending means for supplying musical tone control information to a musical tone generating means, the plurality of switch circuits include a first a group of switch circuits,
and a second switch circuit group, the operator of the first switch circuit group is located close to the keyboard, and the operator of the second switch circuit group is located close to the keyboard. located further away from the keyboard than the operators of the switch circuit group.
A keyboard instrument characterized in that a dead period generating means is interposed between the first switch circuit group and the information sending means.