JPH0574834B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is equipped with a mechanical vibration sound source and an electronic sound source, and is capable of producing the sound of the mechanical vibration sound source alone or simultaneously producing the sound of both sound sources. The present invention relates to a pedal device for a multi-keyboard instrument, in particular, which allows the pedal to be operated with one foot, thereby improving operability and performance expressiveness.

[Conventional technology]

Typical keyboard instruments include the piano, which is a natural musical instrument in which mechanical vibration sound sources such as strings and tone plates are struck and produced by an action mechanism linked to keys; An electric piano that is converted and amplified and then output from a speaker; an electronic tone generator circuit (electronic tone generator) made up of electronic components generates a musical tone signal in response to key presses, and this musical tone signal is output from a speaker. Electronic organs and the like are known. Furthermore, with the diversification of musical sounds, composite keyboard instruments that combine a piano and an electronic organ have been proposed (eg, US Pat. No. 2,933,004). In such instruments, when the electronic sound source is turned off, only the mechanical vibration sound source can be produced, making it possible to play the piano, while when turned on, the mechanical vibration sound source and the electronic sound source can be played simultaneously. Because it can generate sounds, it has the characteristic of allowing a single person to perform in an ensemble similar to playing a piano and an electronic organ simultaneously, allowing for unique performances.

[Problem that the invention seeks to solve]

By the way, pianos are known as sustain pedals, damper pedals that control the attenuation of the strings after a key is struck to obtain a sustain effect, and lifts that selectively reduce the volume. On the other hand, electronic organs are equipped with pedals such as expression pedals that control volume, sound sustain (controls attenuation of sound after key release), timbre, etc. Therefore, when combining a piano and an electronic organ to form a composite keyboard instrument, the keyboard can be shared by using the same keyboard as the piano, but the functions of the pedals are different from those of the piano, as mentioned above. Since they are different from electronic organs, it was not possible to share the same pedals for both, and it was necessary to provide each of these pedals separately.

However, if these pedals were installed separately in parallel on the instrument body, the mechanical vibration sound source and the electronic sound source could be played simultaneously, and the sound characteristics such as the sustain of the mechanical vibration sound source and the volume of the electronic sound source could be controlled respectively. In order to control the instrument, the player must use both feet to operate each pedal, which is surprisingly troublesome for the player.

[Means for solving problems]

A pedal device for a composite keyboard instrument according to the present invention includes:
This was created to solve the above-mentioned problems, and is a composite keyboard instrument equipped with a mechanical vibration sound source and an electronic sound source.The first pedal controls the sustain of the sound of the mechanical vibration sound source, and the A second pedal for controlling sound identification is provided, and the second pedal is disposed in addition to the first pedal, thereby making it possible to operate both of these pedals simultaneously and selectively.

[Effect]

In this invention, since the second pedal is disposed in addition to the first pedal, both pedals can be operated simultaneously or selectively with one foot, and the operability is significantly improved. Furthermore, with this improvement in operability, the performer can make full use of more advanced performance techniques, and the expressiveness of the performance is also significantly improved.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a sectional side view showing an embodiment of a pedal device according to the present invention, and FIG. 2 is a perspective view of the pedal. In these figures, 1 is a damper pedal as a first pedal, and this damper pedal 1 is
The rear end 1a is rotatably supported vertically via a shaft 5 on a bracket 4 disposed on the bottom plate 3 forming the main body 2 of the musical instrument, and the front end 1b is a pedal window 7 provided on the front base 6. It is configured to protrude further forward of the musical instrument main body 2 and to be operated by stepping on it. A first pedal hanger 8 is provided at the longitudinally intermediate portion of the damper pedal 1.
The lower end of the first pedal hanger 8 is connected to the first pedal hanger 8.
The upper end is a pedal lever 11 disposed on the lower surface of the shelf board 9 so as to be rotatable in the front and rear direction via a support member 10.
is connected to. The pedal lever 11 is given a clockwise rotational habit by the spring 12 in FIG. There is. In addition, the pedal lever 11
A front end of a second pedal hanger 13 is connected to the rear end of the second pedal hanger 13, and a rear end of the second pedal hanger 13 is operatively connected to a well-known damper mechanism 14. Damper mechanism 1
4 normally presses all the strings 15 of each pitch except for the high range, which is a mechanical vibration sound source, to prevent the vibrations. Configured to release. The string 15 is configured to generate sound by being struck by a hammer of an action mechanism (not shown) that operates in conjunction with the pressing operation of a key (not shown). is exactly the same as a regular solid piano. Furthermore, the musical instrument main body 2 is provided with an electronic sound source 16, and this electronic sound source 16, like a general electronic organ, turns on and off each key switch (not shown) that is operated by each of the keyboards. The musical tone generation operation is controlled in accordance with the above, and thus constitutes a composite keyboard instrument. In addition, electronic sound source 1
6 may be provided outside the musical instrument main body 2 depending on the case.

An expression pedal 18 is disposed on the front end 1b of the damper pedal 1 as a second pedal for controlling the characteristics of the electronic sound produced by the electronic sound source 16, such as the volume. The expression pedal 18 is exactly the same as the one provided in general electronic organs, and depending on the amount (angle) of its depression, it can, for example, change the amount of light input from the light source to the light receiving element (for example, (Refer to 125624 of 1984) Alternatively, the resistance value of the variable resistor may be changed to output a signal corresponding to the amount of depression of the pedal 18 and be supplied to the electronic sound source 16 (in the figure, the pedal 18 and the electronic (The signal line connecting to the sound source 16 is omitted.) In this case, since the expression pedal 18 is disposed above the damper pedal 1, it is made smaller than the expression pedal of a general electronic organ.

In a pedal device having such a configuration,
If you play with the electronic tone generation switch (not shown) turned OFF to prohibit the generation of electronic tone from the electronic sound source 16, the strings 15 will be hit by the hammer of the action mechanism linked to the key, so You can perform the same performance as a piano. At this time, the volume of the sound produced by the strings 15 is determined by the strength with which the keys are pressed, and the sustain (duration of the sound) is controlled by the damper pedal 1.

On the other hand, when a key is pressed with the electronic sound generation switch in the ON state, the string 15 is struck as described above, and at the same time the key switch of the key is activated, and the electronic sound source 16 is activated by the signal from this key switch. Since it operates to generate a musical tone corresponding to the pitch of the key, the tone of the string 15 and the electronic tone of the electronic tone string 16 are produced simultaneously. At this time, when the expression pedal 18 is depressed with the toe of the foot placed on the damper pedal 1, the volume of the electronic sound is controlled in accordance with the depression angle. Further, when only the damper pedal 1 is depressed, the sustain of the sound of the string 15 is controlled, and when both pedals 1 and 18 are depressed simultaneously, the sustain of the sound of the string 15 and the volume of the electronic sound are controlled simultaneously. Therefore, one performer is playing one piece of music with one instrument on the piano and electronic organ simultaneously, providing a unique musical instrument. Furthermore, since the damper pedal 1 and the expression pedal 18 can be operated simultaneously or selectively with one foot, performance is also excellent.

FIG. 3 is a side sectional view showing another embodiment of the invention. In this embodiment, a leaf spring 20 is disposed below the damper pedal 1, and the leaf spring 20 returns the damper pedal 1 to its initial position. Note that 21 is a detector that detects the amount of depression of the expression pedal 18 and outputs a signal corresponding to the amount of depression.

FIG. 4 is a side sectional view showing still another embodiment of the invention. In the embodiment shown in FIG. 3 (the embodiment in FIG. The structure is otherwise the same as the embodiment shown in FIG. 3. This configuration has the advantage that the feet can be placed on the damper pedal 1 and the expression pedal 18 quite naturally. That is,
In the embodiment shown in FIG. 3, when only the damper pedal 1 is depressed, it is necessary to relax the force of the toe or to keep it as far away from the expression pedal 18 as possible to prevent the expression pedal 18 from being depressed. In this example, as long as the toe is placed on the central part of the expression pedal 18 near the rotational fulcrum, the pedal 18 will not be moved even if some force is applied, and therefore the pedal operation is easy.

〔Effect of the invention〕

As described above, in the pedal device for a composite keyboard instrument according to the present invention, the first pedal that controls the sound generation after a key is struck in the mechanical vibration sound source is provided with the second pedal that controls the sound characteristics of the electronic sound source. However, since both pedals can be operated simultaneously or selectively, it is possible to operate the pedals with one foot, thereby improving the operability of the musical instrument. Therefore, it becomes possible to make full use of more advanced performance techniques, and the expressiveness of the performance is improved.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing one embodiment of a pedal device according to the present invention, FIG. 2 is a perspective view of the pedal, and FIG.
The figure is a side sectional view showing another embodiment of the present invention.
The figure is a side sectional view showing still another embodiment of the invention. 1... Damper pedal, 14... Damper mechanism, 15... Strings, 16... Electronic sound source, 18... Second pedal.

Claims (1)

[Claims] 1. A composite keyboard instrument comprising a mechanical vibration sound source and an electronic sound source, comprising: a first pedal that controls the sound produced after a key is pressed in the mechanical vibration sound source; and a first pedal that controls the sound characteristics of the electronic sound source. A pedal device for a composite keyboard instrument, characterized in that the pedal device comprises a second pedal for controlling the first pedal, and a second pedal is arranged on the first pedal to enable simultaneous operation and selective operation of both pedals. .