Low perturbation wave high-efficiency vibration upright piano

Abstract

The invention relates to a musical instrument, particularly a low-disturbance wave efficient-vibration vertical piano. The piano comprises a cast iron plate (1), tuning pegs (2), strings (12), a string nut (3) and string-hanging poles (5). Striking points of the strings (12) form an imaginary striking line (8) below the string nut (3). The striking line (8) is successively opposite to a bass range (11), a mediant range (10), and a treble range (9) of the piano. A wood soundboard (7) is disposed at the back of the cast iron plate (1). The middle lower part of the cast iron plate (1) is provided with a sound mouth (6) leading to the wood soundboard (7). The piano is characterized in that: the upper edge line of the sound mouth (6) of the cast iron plate (1) is higher than the striking line (8). The beneficial effects of the piano are that: no cast iron straps are disposed behind the striking line and the striking line is directly opposite to the wood soundboard, thus eliminating disturbance wave reflected by the cast iron straps; and vibration space behind the striking points is increased, the vibration efficiency of the strings (12) and the soundboard is largely increased, the tone and the sound volume are largely improved, and significant progress and leap of the vertical piano are achieved.

Description

technical field [0001] The invention relates to a musical instrument, namely an upright piano with low disturbance wave and high-efficiency vibration. Background technique [0002] Existing upright pianos are provided with cast iron plates, also known as steel plates, iron bars or string braces, a plurality of pegs are set up on the top of the cast iron plates, and long ribbed string nuts are arranged horizontally below the pegs. The middle and lower part is provided with a plurality of hanging piles. The strings are kept at a certain distance from the cast iron plate under the support of the nut, and the upper end is connected to the peg, and the lower end is connected to the string hanging pile. There is a wooden soundboard behind the cast iron plate, and the sound waves generated by striking the strings can resonate beautifully on the soundboard. For this reason, most of the surface of the cast iron plate was cut out in the middle and lower part to form a sound port lea...

AI Technical Summary

Problems solved by technology

In addition, the path between the striking point and the cast iron belt is very short, the attenuation is extremely small, the energy carried by the shock wave is large, and it cannot form synchronous vibration with the main vibration wave of the string, which will inevitably have a strong suppression of the normal vibration of the string and interference, so that part of the vibration energy of the strings is offset, and the vibration time of the strings is correspondingly shortened, which has a certain negative impact on the timbre of the strings and the overall sound effect of the piano.

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