Chord waist horse combining with series Qinhu Qianjin

A series and string technology, applied in the field of string waist horse, can solve problems such as the instability of the jack, the influence of the overall resonance of the piano, and no fixed distance

Inactive Publication Date: 2008-07-23

XIAN CONSERVATORY OF MUSIC

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AI-Extracted Technical Summary

Problems solved by technology

The series of Qin Hu consists of four pieces, which are respectively named Qin Gaohu, Qin Erhu, Qin Zhonghu and Qin Dahu to correspond to the treble, alto, alto and bass parts. The range covers three octaves. The waist horse is a unique part related to Qin Hu's sound production. It is used to adjust the tension and tightness of the strings. It reacts with the jack to increase the tension of the strings, and even transmits the vibration of the strings to the piano bar to make...

Method used

The string waist horse that cooperates with series Qin Hu very heavy, shown in Fig. 1, 2, it selects rosewood material to make a flat quadrangular pyramid frustum, the front and back cone mesa 2 of the cone frustum is an equilateral triangle, and the cone top There are two open string grooves 1 supporting the strings, the width of the top cone is 5-5.5mm, the thickness of the top cone is 1.5-1.8mm, and the distance between the two open string grooves supporting the strings is 2.0-2.5mm, which can make the inner and outer strings With the fixed distance, the tension of the strings does not affect each other when the inner and outer strings are tuned, and the tension of the stri...

Abstract

The invention relates to a bridge engaged with a Qianjin of series of Qinhu, which is characterizes in that the invention selects rosewood material to make into a rectangular pyramid cone with flattened shape, the top portion of the pyramid is equipped with two open slots which is used to support the strings, the bottom is equipped with a semi-circle hole with opening, the upper portion of which is equipped with string through holes, the length of edge of the left pyramid surface is bigger than that of the right one of the pyramid cone, the edge of the left pyramid surface is sloping edge, the edge of the right pyramid surface is straight edge, which are formed into non-equilateral right-angle pyramid surface. The product has the advantages and effects that the invention can make the fixed distance of the inner and outer strings and the stretching force of the strings when setting tone doesn't influence with each other, the vibration of the strings can be sufficiently conducted to the Qin body, the integral vibration of the Qin is strengthened, the bridge and the Qianjin form a reverse force to strengthen the stretching force of the strings.

Application Domain

Stringed musical instruments

Technology Topic

EngineeringSEMI-CIRCLE +3

Image

Examples

Experimental program(1)

Example Embodiment

[0023] The string-waist horse matched with the series of Qin Hu jacks is shown in Figures 1 and 2. It uses red sandalwood material to make a flat quadrangular pyramid frustum. The front and back cones of the frustum body 2 are equilateral triangles, and there are two cones on the top. The open string groove 1 for supporting the strings, the width of the top cone is 5~5.5mm, the thickness of the top cone is 1.5~1.8mm, the distance between the two opening grooves for supporting the strings is 2.0~2.5mm, which can make the inner and outer strings have a Fixed distance, the tension of the strings does not affect each other when the inner and outer strings are tuned, and the tension of the strings does not affect each other when the inner and outer strings are tuned, so that the tension of the strings is increased. The cone bottom has an open semicircular hole that matches the shaft. 4. Above the open semicircular hole, there is a thread perforation for fixing the piano shaft. 3, the stringer is fixed to the piano shaft through the silk thread perforation. The open semicircular hole that matches the shaft is matched with the shaft, and the side of the left cone of the frustum body The length is greater than the side length of the right cone. The left cone is a hypotenuse, and the right cone is a straight edge to form a unequal-sided right-angled cone. The right-angled side is on the bottom and the hypotenuse is on the top, which is similar to the piano shaft. The matching open semicircular hole cooperates with the piano shaft to transmit the string vibration to the piano shaft.

[0024] Series Qin Huxian waist horse specifications:

[0025] Name of Qin Hu Top cone width Top cone thickness Open chord groove distance

[0026] Qin Gaohu 5mm 1.5mm 2mm

[0027] Qin Erhu 5mm 1.5mm 2mm

[0028] Qin Zhonghu 5.5mm 1.8mm 2.5mm

[0029] Qin Dahu 5.5mm 1.8mm 2.5mm

PUM

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