Outer-decahedral-inner- hexagonal Erhu cylinder and novel decahedral Erhu

Abstract

The invention discloses an outer ten inner hexagonal qin tube, comprising: outer ten inner hexagonal qin tube body, sound window, piano leather, tortoise shell, the outer ten inner hexagonal qin tube body length of 13.1cm, which is the core of the design, The parallel distance between the front diameter and the long side is 8.8cm, and the parallel distance between the rear diameter and the long side is 8.0cm. The wall thickness of the piano tube is determined according to the specifications of each piano production area. This design innovatively standardizes the four corners above the outer wall of the piano tube. corner, and the thickness of the thinnest wall at the corner is greater than 3mm. Therefore, a new type of outer ten inner hexagonal piano tube is obtained creatively. The non-equilateral regular decagonal design on the outside can not only avoid the noise caused by the collision between the bow and the corners of the piano tube during playing, but also reduce the wear and tear on the corners of the piano tube and the number of tortoiseshell replacements, while the interior continues the traditional regular hexagonal design , so that the new ten-corner erhu retains the beautiful tone of the original hexagonal erhu.

Description

technical field [0001] The present invention relates to the field of traditional musical instruments, in particular to a novel ten-cornered erhu, and more specifically, to an outer ten-inner hexagonal qin tube. Background technique [0002] The erhu is one of the ancient traditional Chinese stringed instruments. According to the origin of the qin, it can be divided into: Suzhou qin, Shanghai qin and Beijing qin; according to the shape of the qin tube, it can be divided into four categories: hexagonal erhu, octagonal erhu, cylindrical erhu, flat Tube erhu. Since the 1970s, my country's musical instrument production, technology and performance personnel have carried out a series of reforms on the erhu, resulting in flat cylinders, flat hexagonal cylinders, flat octagonal cylinders, hexagonal equilateral cylinders, and straight egg-shaped cylinders. New varieties of erhu such as elliptical cylinder and so on. [0003] Among the many changes in the shape of the erhu, the core c...

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Problems solved by technology

[0006] Because the concertina tube has the purest tone and is widely used, but its simple structure makes the current outstanding problems difficult to solve, so the present invention proposes a novel external ten internal hexagonal tube for the above problems in the prior art Type piano tube, its purpose is to overcome the problem of collision between the bow body and the corner of the piano tube during the performance process, and to ensure the beautiful tone of the original concertina tube

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