KR102597777B1 - Portable piano - Google Patents

Abstract

The present invention relates to a portable piano with improved functionality, which is a combination of a digital piano and an accordion, is lightweight and small in size, and can be played while carrying it on the shoulder, so that the instrument can be played more conveniently regardless of location, such as indoors or outdoors. This is so that you can do it.
The present invention for realizing this includes a keyboard unit 36 consisting of a plurality of keys on one side of the main body so that right-hand play can be performed; a base unit (3) provided on the other side of the main body and consisting of a plurality of buttons to implement chords through left-hand performance; Keyboard detection units (3a, 36a) that detect each pressing action of the base unit (3) and the keyboard unit (36); a control unit 50 through which signals from the keystroke detection units 3a and 36a are transmitted; an electroacoustic conversion unit 51 that converts the keystroke signal into sound under the control of the control unit 50; It is characterized in that it comprises a speaker (5) through which the sound converted by the electroacoustic conversion unit (51) is generated to the outside.

Description

Portable piano with improved functionality

The present invention relates to a portable piano, and more specifically, to a portable piano with an improved structure that improves portability and mobility by making the structure of a digital piano smaller and lighter.

In general, a digital piano is also called an electronic piano. Unlike conventional pianos, which produce sound by hitting internal strings through physical/mechanical action when pressing a key, it is an instrument that generates electronic sound by operating a type of electric switch. It is a keyboard instrument that is almost identical to a regular piano.

Because digital pianos use digital sounds stored in hardware, they do not require tuning and can be used interchangeably with other devices. They also have various types of sounds different from the sounds of regular pianos and the sounds of various instruments such as violins, drums, and saxophones. Due to its advantage of having many tones, it is widely used as a replacement for a regular piano for education/learning, practice, and hobbies.

However, because the piano in the prior art is large in size and volume, it can only be played in certain places, and there are problems in carrying it and moving it outdoors or to other places.

In addition, the accordion was inconvenient in that it had to be played while bellows bellows were used with the left hand to blow air during the performance, and it was also inconvenient to play due to the weight of about 12 to 18 kg.

Republic of Korea Patent Registration No. 1537344 (registered on July 10, 2015) Republic of Korea Patent Publication No. 2011-0106532 (published on September 29, 2011)

The present invention was proposed to improve the problems in the prior art. It has a compact structure similar to an accordion in appearance, and is an improved device that can be freely carried without the need for bellows and can be played with both hands using the keyboard and buttons. The purpose is to provide a keyboard instrument structure.

The portable piano of the present invention for achieving the above object includes a keyboard section consisting of a plurality of keys on one side of the main body so that right-hand play can be performed; a base unit provided on the other side of the main body and composed of a plurality of buttons to implement chords through left-hand performance; a key detection unit that detects pressing operations of each of the keyboard unit and the base unit; a control unit through which a signal from the keystroke detection unit is transmitted; an electroacoustic conversion unit that converts a keystroke signal into sound under the control of the control unit; A speaker that generates the sound converted by the electroacoustic conversion unit is characterized in that it constitutes a configuration including a.

In addition, the speaker is located between the base unit and the keyboard unit, and a bass octave control unit is provided on one side of the base unit for adjusting the bass octave, and a keyboard octave control unit is provided on one side of the keyboard unit for adjusting the octave of the keyboard sound. It is characterized by

The portable piano of the present invention is a combination of a digital piano and an accordion and is lightweight and small in size so that it can be played while carrying it on the shoulder, so that the instrument can be played more conveniently regardless of location, such as indoors or outdoors. will be.

In particular, it does not require bellows compared to existing accordions, and it weighs only 2.6 to 3 kg, which is lighter than an accordion, so even women and elementary school students can use it without difficulty.

1 is a plan view of a portable piano according to an embodiment of the present invention.
Figure 2 is a structural diagram of the left side of the portable piano of the present invention.
Figure 3 is a structural diagram of the right side of the portable piano of the present invention.
Figure 4 is a detailed view of the button function of the left base part A of Figure 1.
Figure 5 is an enlarged view of part B of Figure 2.
Figure 6 is a block diagram of the driving unit of the portable piano of the present invention.
Figure 7 is a perspective view of the exterior of the portable piano of the present invention.
8 and 9 are structural diagrams of a portable piano according to another embodiment of the present invention.

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

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those with average knowledge in the art.

Accordingly, the shapes of components expressed in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same configuration may be indicated by the same reference numeral in each drawing. Additionally, detailed descriptions of the functions and configurations of known technologies that are judged to unnecessarily obscure the gist of the present invention may be omitted.

First, the configuration of a portable piano according to an embodiment of the present invention will be examined through FIGS. 1 to 6 as follows.

The portable piano in this embodiment has an appearance similar to an accordion, and includes a keyboard unit 36 consisting of a plurality of keys on one side of the main body so that right-hand play can be performed, and a keyboard unit 36 provided on the other side of the main body so that left-hand play can be performed. A base unit (3) made up of a plurality of buttons to implement chords, a keystroke detection unit (3a, 36a) that detects a press operation of each of the base unit (3) and the keyboard unit (36), and the keypad unit (36). A control unit 50 through which signals from the detection units 3a and 36a are transmitted, an electroacoustic conversion unit 51 through which the keystroke signal is converted into sound under the control of the control unit 50, and the electroacoustic conversion unit ( It is configured to include a speaker 5 through which the sound converted by 51) is generated externally and a power supply unit (not shown) for supplying operating power.

At this time, the speaker 5 is located between the base unit 3 and the keyboard unit 36, and a bass octave control unit 4 for adjusting the bass octave is provided on one side of the base unit 3, and the keyboard unit 3 It can be seen that a keyboard octave control unit 35 is provided on one side of the unit 36 to adjust the octave of the keyboard sound. The bass octave control unit (4) can set a sound range of 4 octaves, and can be set independently from the keyboard octave control unit (35).

In addition, it is preferable that the base unit 3 and the keyboard unit 36 are symmetrical left and right with respect to the speaker 5 and are provided on an inclined surface at a certain angle so that they can be easily keyed with the right and left hands, respectively.

In particular, the base unit 3 has 48 buttons arranged in 6 rows, with the first row (3a) and second row (3b) being single note buttons, the third row (3c) being triad buttons, and the fourth row being (3d) is a reduced triad button, the 5th row (3e) is a 7th chord button, and the 6th row (3f) is a 9th chord button.

In addition, a mode change button (2) is provided on one side of the base unit (3) to enable selective performance in accordion mode or keyboard mode, and one side of the keyboard unit (36) is equipped with 12 buttons to adjust the sound keys by semitones. A semitone cord portion (8) is provided, and the main body is preferably provided with ring portions (60) on both sides for connecting shoulder belts.

Meanwhile, in this embodiment, the Bend sound (1) switch functions to bend the sound up and down from the main sound, and the microphone volume control (6) and instrument volume control (7) use the up and down volume control buttons to control the microphone or sound, respectively. It performs the function of adjusting the overall volume, and the button in the speed tone setting unit (11) allows you to quickly set the playing tone, and the tone setting part (12) has 255 tones from 1 to 255 and allows you to select the desired tone. You can freely select, the demonstration music (12) button allows you to select and listen to a number of songs stored internally, and the speed control (14) button allows you to set the fast and slow speed with the arrow buttons, and insert/simultaneous If you press the [insert] button after starting the rhythm, the (15) button automatically inserts the interlude and stops the [synchronize] rhythm. At this time, if you press any key on the right hand keyboard, the rhythm accompaniment can proceed at the same time, and the rhythm (17) button starts the rhythm. It performs the function of starting, the reset (18) button switches to accordion mode with factory default settings, and the metronome (21) button is used in thin slice mode and has 6 types (1/4, 2/4, 3/4, 4). /4,3/8,6/8) beats are built-in to enable beat selection, and the wireless transmission (22) button allows you to tune the wireless transmitter signal by touching it without the need to connect a cable, and the eruption sound (23) ) button is a chord mode button from 1 to 7, allowing you to set the chord that suits your performance, the portamento button (24) implements a portamento effect, and the vibrato (25) button implements a trill tone. I do it.

Let's look at the effects of using the portable piano of the present invention configured as described above.

The portable piano of the present invention is played by attaching shoulder straps to the hooks 60 provided on both sides of the main body and carrying it on both shoulders in a similar manner to an accordion. Key notes and bass can be played simultaneously using both hands.

In other words, playing in a piano style while pressing the keys of the keyboard unit 36 with the right hand and playing chords by pressing the 48 buttons on the base unit 3 with the left hand allows the performance of various tones.

In particular, the 48 chords played by the bass unit (3) can be converted into 12 levels of raising or lowering the entire chord by a semitone using the button of the bass octave control unit (4), allowing you to play chords of all genres. You can do it.

In addition, the chords played by the base unit 3 can be separated one by one by the differentiated sound 23 button, showing the advantage of being able to play with more diverse tones. For example, in the case of the C chord, three notes, do/mi/sol, are heard at the same time. If you press the eruption button (23), the notes can be played separately one by one: do, sol, do, mi, and sol. There will be.

In addition, the sound played by the right-hand keyboard unit 36 is octave-controlled by the keyboard octave control unit 35, so that the entire keyboard sound goes up or down by one pitch, thereby generating the playing sound.

Therefore, the portable piano of the present invention is a combination of a digital piano and an accordion, is lightweight and small in size, and can be played while carrying it on the shoulder, so that the instrument can be played more conveniently regardless of location, such as indoors or outdoors. will be.

In particular, it does not require bellows compared to existing accordions, and it weighs only 2.6 to 3 kg, which is lighter than an accordion, so even women and elementary school students can use it without difficulty.

In addition, although specific embodiments of the present invention have been described and shown above, it is obvious that the portable piano structure of the present invention can be implemented in various modifications by those skilled in the art.

For example, in the above embodiment, the number of keys and buttons is specifically described and shown, but the number of keys and the arrangement of buttons can be manufactured in various forms as shown in FIGS. 8 and 9.

In addition, when you press a break-up chord on the left-hand bass part (3), major, minor, 7th, umami, and break-up chords are stored, so you can easily play them in a row by pressing just one chord button. By remembering the five tones, you can play them in a row with your right hand. When playing by arranging it close to the keyboard unit 36, it is possible to arrange the desired tone in advance and set it to play comfortably.

Therefore, such modified embodiments should not be understood individually from the technical spirit or scope of the present invention, and such modified embodiments should be included within the scope of the appended claims of the present invention.

1: Bend sound 2: Mode change button (accordion/keyboard)
3: Bass section 4: Bass octave control section
5: Speaker 6: Microphone volume control
7: Instrument volume control 8: Semitone chord section
9: Display unit 10: Digital button
11: Speed tone setting unit 12: Tone setting unit
13: Demonstration music 14: Speed control
15: Insert/Simultaneous 16: Start/Stop
17: Rhythm 18: Reset
19: Accompaniment volume mode 20: Accompaniment volume control
21: Metronome 22: Wireless transmission
23: eruption sound 24: soft sound
25: Vibrato 26: Recording
27: Program 28: Execution
29: memory storage 30~33: storage unit
34: Bluetooth 35: Keyboard octave control unit
36: Keyboard 37: Audio output
38: Audio input 39: 12v current input
40: USB cord 41: Earphone output
42: Microphone cord 43: Power switch
44: wireless transmitter 45: left hand belt adjuster
50: Control unit 51: Electroacoustic conversion unit
60: hook

Claims (7)

a keyboard unit 36 consisting of a plurality of keys on one side of the main body so that right-hand play can be performed;
a base unit (3) provided on the other side of the main body and consisting of a plurality of buttons to implement chords through left-hand performance;
Keyboard detection units (3a, 36a) that detect each pressing action of the base unit (3) and the keyboard unit (36);
a control unit 50 through which signals from the keystroke detection units 3a and 36a are transmitted;
an electroacoustic conversion unit 51 that converts the keystroke signal into sound under the control of the control unit 50;
It includes a speaker (5) through which the sound converted by the electroacoustic conversion unit (51) is generated to the outside,
The speaker (5) is located between the base unit (3) and the keyboard unit (36), and a bass octave control unit (4) is provided on one side of the base unit (3) for adjusting the bass octave, and the keyboard unit ( 36) A portable piano with improved functionality, characterized by having a keyboard octave control unit (35) on one side for adjusting the octave of the keyboard sound. delete In claim 1,
The base unit 3 and the keyboard unit 36 are symmetrical left and right with respect to the speaker 5 so that they can be easily keyed with the right and left hands, respectively, and are provided on an inclined surface at a certain angle. An improved portable piano. In claim 1,
The base part (3) has 48 buttons arranged in 6 rows, where the first row (3a) and second row (3b) are single note buttons, the third row (3c) is a triad button, and the fourth row (3d) is a button. ) is a reduced triad button, the 5th row (3e) is a 7th chord button, and the 6th row (3f) is a 9th chord button. A portable piano with improved functionality. In claim 1,
A portable piano with improved functionality, characterized in that a mode change button (2) is provided on one side of the base unit (3) to enable selective playing in accordion mode or keyboard mode. In claim 1,
A portable piano with improved functionality, characterized in that one side of the keyboard unit (36) is provided with a semitone chord unit (8) consisting of 12 buttons to adjust the sound keys by semitones. In claim 1,
A portable piano with improved functionality, characterized in that the main body has ring portions 60 on both sides for connecting a shoulder belt.

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