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Acoustic device

An audio device and audio signal technology, applied in the direction of electroacoustic musical instruments, stringed instruments, instruments, etc., can solve the problem of non-use

Pending Publication Date: 2022-07-15
GHENSOW JAPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, even ordinary households sometimes buy grand or upright pianos, however, they are often not used

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0047] ~Overview of grand piano~

[0048] figure 1 is a schematic cross-sectional view of a grand piano. figure 2 is an exploded perspective view. The basic structure of a grand piano is briefly explained below.

[0049] A grand piano consists of a keyboard, hammers, dampers, strings, soundboards, strings, etc.

[0050] The strings are tensioned horizontally and in front of the player.

[0051] When the keyboard is struck, as the damper linked with it is lifted, the hammer strikes the string to vibrate, and the vibration of the string is transmitted to the soundboard through the string code and amplified. When the hand is taken off the keyboard, the damper drops and the vibration stops.

[0052] Also, if all dampers are lifted by the pedal, the other strings that are not struck also resonate, resulting in a piano-specific sound.

[0053] Grand pianos have top caps that cover the strings, and by raising it, more volume can be produced. The top cover is held at an angle ...

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Abstract

Provided is an acoustic device for attachment to any one of a plucked string instrument, a wiped string instrument, and a strike string instrument. The sound device (10) comprises a vibration mechanism (11), a base part (12), a string pressing part (13), a through hole (14), a string hanging part (15), a displacement mechanism (18) and fine adjustment mechanisms (21, 22). The string hanging part (15) comprises a rod part (16) and an extending part (17). The string hanging part (15) is positioned at a position separated from the soundboard (1) by the displacement mechanism (18), and the extending part (17) is in a state of hanging the string (4). And elastic force is generated on the strings (4), and the vibrator (31) is slightly pressed on the string bridge (3) through the action of a third type of lever. If excessive pressure is caused by strong tension of the strings (4), the pressure is adjusted to a proper value by fine adjustment mechanisms (21, 22).

Description

technical field [0001] The present invention relates to a sound device, in particular to a sound device that can be installed on a piano. Background technique [0002] In the past, some pianos were able to play automatically. In Japan, it was mainly displayed inside stores from the 1980s to the 1990s. However, similar to when a player is playing, it has more failures because it involves physical actuation such as hitting the strings with a hammer. Even for failures due to long-term use, the piano's tuner cannot perform electrical repairs, or there are no parts to repair or replace. Due to these circumstances, although the business of pianos capable of automatic playing is still going on at the moment, it is decreasing in the long run. [0003] On the other hand, even ordinary households sometimes buy grand or upright pianos, however, they are often not used. Also, many pianos circulate on the used market at relatively low prices. [0004] Also, in some electric pianos, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10H1/32G10C3/04
CPCG10H1/32G10C3/04
Inventor 小林功児香川竜太
Owner GHENSOW JAPAN INC
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