CN107025897B

CN107025897B - Three-dimensional curved surface structure of ancient organ panel

Info

Publication number: CN107025897B
Application number: CN201710250040.5A
Authority: CN
Inventors: 杨致俭
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-17
Filing date: 2017-04-17
Publication date: 2023-08-04
Anticipated expiration: 2037-04-17
Also published as: CN107025897A

Abstract

The invention discloses a three-dimensional curved surface structure of an ancient piano panel, which comprises the ancient piano panel, and strings and a mountain erected on the ancient piano panel, wherein the mountain is vertically erected in front of a bearing part and is provided with string eyes corresponding to the strings, and the strings comprise 1-7 strings and respectively extend from a dragon gum part to the mountain and are fixed through the string eyes; 1-7 strings extend from the dragon gum part to the Yue mountain and pass through the position of the four logos of the Gu face plate, which is vertical to the face plate of the Gu, and extends upwards by 7.1-7.3 mm until contacting with the part of the Yue mountain protruding from the face plate of the Gu, wherein the contact height is the height of the Yue mountain; the surface between the four emblems and the dragon gum part is concave, and the concave distance is 1.2-1.3 mm. The ancient organ panel can eliminate the phenomenon of braking the sound clapping plate without resisting fingers, and provides a scheme for determining the assembly relation between the mountain and the ancient organ panel, so that the coordination and the aesthetic property of the appearance of the ancient organ are guaranteed on the basis of improving Gu Qinyin effect to the greatest extent.

Description

Three-dimensional curved surface structure of ancient organ panel

Technical Field

The invention relates to the technical field of plucked instruments, in particular to an ancient organ three-dimensional curved surface structure which is not resistant to fingers and can eliminate brake sound.

Background

The ancient organ has a high position on the development history of China civilization, is one of the musical instruments with the most Chinese characteristics, and represents the traditional music of China. The ancient organ has wide range, deep tone and raised aftertone, and people praise the ancient organ to 'like splash, tremble and if the ancient organ is in the shape of a dragon', so that the beauty of the tone of the ancient organ is reflected.

The structure of the Guqin comprises a panel and a bottom plate and a corresponding sounding structure. The strings can be plucked to beat the panel to cause vibration of the panel, thereby further causing vibration of the resonator device constituted by the panel and the bottom plate, so that the string sounds of the strings are amplified by the resonator device and propagated in the air. In general, the phenomenon of 'braking and beating plates' occurs when the ancient piano is played, namely, strings are beaten on the surface of the piano in the vibration process to generate sand sound, and the tone and playing effect of the ancient piano are greatly affected. The face of the ancient musical instrument is horizontal, slightly concave and slightly convex, and the size of the face is not accurately represented by numerical values, and the structure of the face of the ancient musical instrument is usually determined by hand feeling, but perfect sound effect cannot be obtained. ( The sense of a bit of force when the left hand presses the string is resistance. The strings cannot be too high from the surface, and the too high strings are called as fingering resistance, which can influence the playing method of the musical instrument and even damage fingers )

Moreover, the strings are too far from the panel of the organ, and the phenomenon of 'anti-finger' occurs, which affects the fingering of the string and even tires the fingers, so that it is desirable to provide a structure of the panel of the organ which can solve the above problems.

Disclosure of Invention

The invention aims to provide the three-dimensional curved surface structure of the organ, which can eliminate the brake sound or the clapping plate of the organ during playing, and provide corresponding size values to obtain the best effect of Gu Qinyin effect, so that a listener has perfect viewing and listening experience.

The invention provides a three-dimensional curved surface structure of an ancient piano panel, which is characterized by comprising the ancient piano panel, and piano strings and mountains erected on the ancient piano panel, wherein the mountains are vertically erected in front of a bearing part and are provided with string eyes corresponding to the strings, and the strings comprise 1-7 strings and respectively extend from a gum part to the mountains and are fixed through the string eyes;

the strings 1 to 7 extend from the dragon gum part to the mountain and pass through the four logos of the ancient organ panel to extend upwards by 7.1 to 7.3mm until contacting with the Yue Shantu part of the ancient organ panel, wherein the contact height is the mountain height;

the surface between the four emblems and the dragon gum part is concave relative to the connecting line between the four emblems and the dragon gum part, and the maximum concave distance is 1.2-1.3 mm.

Preferably, the surface between the four emblems and the mountain is an inclined surface inclined to the lower part of the mountain.

Preferably, the surface between the four emblems and the mountain is not higher than the surface between the four emblems and the dragon gum part.

Preferably, the tolerance of the concave distance is + -0.1 mm; the tolerance of the string to the height of the four emblems is + -0.1 mm.

Preferably, the chord eye is located below the height of the mountain.

Preferably, the chord eye is arranged at the top of the mountain.

In another embodiment, the middle section of the surface between the four emblems and the dragon gum portion is recessed, and recessed by 1.3mm; the 1-7 strings extend from the dragon gum part to the Yueshan and pass through the position of the four logos of the Guqin panel, which is vertical to the plane of the Guqin panel and extends upwards by 7.2 mm.

The ancient organ panel is provided with a clamping groove, and the mountain is vertically fixed on the ancient organ panel by being embedded into the clamping groove and is positioned in front of the exposed part.

Preferably, the concave distance is not less than 1.2mm and not more than 1.4mm, and the string is not less than 7.1mm and not more than 7.4mm from the height of the four emblems.

Preferably, the part of the Yue mountain protruding from the ancient organ face plate is between 17 and 18mm.

Compared with the prior art, the embodiment of the invention has the main differences and effects that: 1. an ancient piano panel with a quantized size is provided, the ancient piano panel slightly sags from the surface of a four badge to the surface of a dragon gum part, and the sag distance ranges from 1.2mm to 1.3mm, so that strings cannot beat the piano face during playing; 2. at four logos of the guqin panel, the string distance range between the strings and the guqin panel is 7.1-7.3 mm, so that the mounting height of the Yue mountain is determined through the extending height of the strings, the assembly among the Yue mountain, the guqin panel and the strings is optimal, the Gu Qinyin-efficiency stability is improved, and a string plucker cannot play the strings; 3. the corresponding relation between the concave distance of the panel of the ancient organ and the string distance of strings at four hui positions is provided, and the ancient organ is more suitable for ancient organs with different materials and different modeling structures.

It is understood that within the scope of the present invention, the above-described technical features of the present invention and technical features specifically described below (e.g., in the examples) may be combined with each other to constitute new or preferred technical solutions. And are limited to a space, and are not described in detail herein.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating preferred embodiments and are not to be construed as limiting the invention.

Fig. 1 is a schematic structural view of an organ including a three-dimensional curved structure of the organ according to an embodiment of the present invention.

Fig. 2A and 2B are schematic views of mechanical vibrations of strings on a panel of a harmonica in the prior art.

Fig. 3 is a top view of an organ including a three-dimensional curved structure of the organ without winding in an embodiment of the invention.

Fig. 4 is a front view of a three-dimensional curved structure of a face plate of an organ in one embodiment of the invention.

Reference numerals:

guqin 1

Ancient musical instrument panel 11

Bottom plate 12

String 13

Yueshan 14

Musical instrument forehead 15

Exposed portion 16

Dragon gum portion 17

Logo 18

1 chord 131

Four emblems 184

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the claims of the present application may be implemented without these technical details and with various changes and modifications based on the following embodiments.

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The surface size of the existing ancient organ panel is not uniform, and the surface size of the adaptive ancient organ panel cannot be determined by determining the height of the strings from the surface of the ancient organ panel because the strings are in an angle relation with the ancient organ panel (the angle is tiny and is about 3-10 degrees). The corresponding relation between the height and the size of the face is difficult to be linked through a formula, so that difficulty is caused to the manufacture of the ancient piano, and the quality of the ancient piano in terms of sound and user experience is influenced. The invention relates to a three-dimensional curved surface structure of an ancient piano, which can eliminate the situation of braking sound and/or clapping when playing the ancient piano, and further provides a scheme for determining the mounting height of a mountain 14.

The first embodiment of the present invention provides a three-dimensional curved surface structure of a guqin panel 11, comprising a guqin panel 11, and strings 13 and mountain 14 erected on the guqin panel 11, the mountain 14 being erected vertically in front of a bearing portion 16 and having string eyes corresponding to the strings 13, the strings 13 comprising 1 to 7 strings and extending from a gum portion 17 to the mountain 14, respectively, and being fixed by the string eyes; 1 to 7 strings extend from the dragon gum part 17 to the Yue mountain 14 and pass through the position of the four logos 184 of the ancient piano panel 11, which is located in the plane vertical to the ancient piano panel 11 and extends upwards by 7.1 to 7.3mm until contacting with the part of the Yue mountain 14 protruding from the ancient piano panel 11, wherein the contact height is the height of the Yue mountain 14; the surface between the four emblems 184 and the dragon gum portion 17 is concave relative to the connecting line between the four emblems 184 and the dragon gum portion 17, and the maximum concave distance is 1.2-1.3 mm.

In the present embodiment, the ancient musical instrument is composed of a body, a mountain 14, strings 13, and the like. The body is composed of a panel and a bottom plate 12 and depends on a gum rest, a wild goose foot and a peg protector which can be placed on other horizontal surfaces such as a table, a playing table and the like in parallel with the ground. The panel and the bottom plate 12 form a hollow cavity, which is equivalent to a resonator, and plays a role in amplifying sound waves. In addition, the body includes a forehead 15 portion and Jiao Weibu in terms of azimuth division, and the mountain 14 is fixedly provided at the forehead 15 portion and is the highest portion of the ancient musical instrument. The side of the mountain 14 near the forehead 15 is connected with a dew bearing part 16, and seven string holes are arranged on the mountain 14 for wearing strings 13. In the prior art, on the surface of the face plate 11 of the ancient organ, strings 13 pass through the whole body from the mountain 14 in order to reach the tail of the coke and cling to the gum 17 of the dragon so as to be wound on the goose feet, which are bulges arranged on the bottom plate 12 of the ancient organ. The surface of the base plate 12 is a horizontal plane and the surface of the face plate is an irregular plane having a dimensional relationship, and the dimensional relationship and the shape of the irregular plane will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a guqin including a three-dimensional curved structure of the guqin according to an embodiment of the present invention, and as shown in fig. 1, strings 13 of the guqin include 1 string, 2 string, 3 string, 4 string, 5 string, 6 string, and 7 string, wherein 1 string is thickest and 7 string is thinnest. Fig. 3 is a top view of an ancient organ including a three-dimensional curved surface structure of the ancient organ without winding, in an embodiment of the present invention, the surface of the panel 11 of the ancient organ is further marked with thirteen logo positions 18, each logo position is used for marking the position of the ancient organ in the length direction, or the position of a sound section, which is a mark of the harmonic vibration point of the ancient organ, one side close to the forehead 15 is a logo and is twenty-thirteen logos in turn towards the gum part 17, the side where the logo positions 18 are located is marked as the outer side of the ancient organ, and 1-7 strings are sequentially arranged from the outer side to the inner side of the ancient organ.

By the intersecting relationship of the thirteen hues and 7 strings, various positions on the surface of the face plate of the harp can be located, for example, a 1-string thirteen hues, a 7-string seven hues, a 4-string eight hues, and the like.

The mechanical vibration of the strings 13 with 7 different thicknesses is generated by the sound of the ancient piano, and because the strings 13 are fixed in the string eyes of the mountain 14, the mechanical vibration of the strings 13 is transmitted to the panel 11 of the ancient piano through the mountain 14 during playing, and the panel is driven to resonate, so that the panel vibrates to generate air vibration and drive the bottom plate 12 to vibrate, and the sound wave generated by the strings 13 is longitudinal vibration, namely downward propagation, so that the sound wave in the hollow cavity formed by the panel and the bottom plate 12 is longitudinal vibration during common vibration. The amount of vibration of each string at the time of the playing of the ketjen is related to the mass of the string and thus to the diameter of the string 13: the thicker the strings, the smaller the vibration amount when the same driving force is applied. In addition, the distance of the strings from the face in the non-played state is called the string pitch.

Fig. 2A and 2B are schematic views of mechanical vibrations of strings on a panel of a harmonica in the prior art. In the prior art, when the face is a completely flat horizontal surface, as shown in fig. 2A, near the finger, the amplitude of the strings may be larger than the string pitch, and because of the different diameters of 7 strings, if a certain string located in the middle of the sequence of 7 strings is in the condition of beating the face, the strings will also beat the panel, so that the sound effect of the ancient musical instrument is greatly affected; when the face has a curvature, as shown in fig. 2B, the curvature gives the string vibration space. The upper and lower two broken lines in fig. 2A and 2B represent distances at which the amplitude of the strings vibrate in the vicinity of the finger. However, the occurrence of a brake tone or clapping plate is not only related to the chord distance but also to the mounting height of the mountain and the fitting relation of the dragon gum part; the angle of the panel is not right or uneven, the polishing process is not precise, and the like, so that the amplitude space of the strings is insufficient during sound dispersion and pressing, and noise is caused. Further, if the string is too high, it may cause "anti-fingering", seriously affecting the fingering of the string operator and seriously damaging the fingers. In general terms, the size of the face is a key factor affecting Gu Qinyin efficiency, while the height of the strings is a key factor affecting the use experience of the seven-stringed plucked instrument.

FIG. 4 is a front view of a three-dimensional curved structure of the face plate 11 of the organ in one embodiment of the invention, showing the dimensional relationship of the face plate 11 and the mountain 14. As shown in fig. 3, gu Qinqin is about 1.21m long, and the surface of the face plate 11 (hereinafter referred to as "face") is an irregular face. Specifically, the face between the plane perpendicular to the face plate 11 of the Gu and the gum part 17 of the Gu, where the fourth logo (hereinafter simply referred to as "four logo 184"), is slightly recessed, and the recessed distance ranges from 1.2 to 1.3mm. This range is empirical data obtained through a number of experiments and experience of a professional string player.

Experiments prove that the slightly concave surface from the four emblems 184 to the dragon gum part 17 is the best structure for avoiding the occurrence of brake sound and clapping plate, and the sound effect of the ancient musical instrument can be improved to different degrees by limiting the concave distance. Wherein, because the external forces for exciting the strings 13 to generate mechanical vibration are different, the larger external forces increase the vibration quantity of the strings 13, and the strings 13 are easy to flap the surface, so that the string distance needs to be increased; however, if the string pitch is far greater than the amplitude of the strings 13, the playing skill of the string is affected again, the user experience (i.e., feel) is further affected, which is a very important factor from the point of use of the stringed instrument, and the incompatibility of the appearance of the seven-stringed instrument is also increased.

In the present embodiment, as shown in fig. 4, the three-dimensional curved surface structure of the guqin panel 11 includes the guqin panel 11 and strings 13 and mountains 14 erected on the guqin panel 11, the mountains 14 being erected vertically in front of the exposed portion 16 and having string eyes (not shown) corresponding to the strings 13, the strings 13 extending from the gum portion 17 to the mountains 14 and being fixed by the string eyes. Fig. 4 shows only 1 string 131,1 string 131 of all strings 13 extending from the gum portion 17 toward the mountain 14, and passing through a position where the four emblems 184 are located in a plane perpendicular to the face plate 11 extending upward by 7.2mm until contacting with the portion of the mountain 14 protruding from the face plate 11, the height of the contact being determined as the mounting height of the mountain 14; the face between the four emblem 184 and the dragon gum portion 17 is concave and the concave distance is 1.2mm.

Specifically, the highest point of the face shown in fig. 4 is four-badge 184, and the 1-string 131 extends from the gum portion 17 to the forehead 15 and passes 7.2mm above the four-badge 184 until the 1-string 131 contacts the Yueshan 14, which is the mounting height of the Yueshan 14, that is, the minimum h of the distance of the Yueshan 14 protruding from the face plate 11 _min . Because the mountain 14 is also provided with the string eyes which are arranged at the position slightly lower than the top of the mountain 14, the actual installation height h of the mountain 14 is larger than h _min The method comprises the steps of carrying out a first treatment on the surface of the In another embodiment, the string holes can be arranged on the top of the mountain 14, and the mounting height of the mountain 14 can be equal to h _min 。

With the four emblem 184 points as nodes, the plane of the four emblem 184 perpendicular to the harp panel 11 divides the harp panel 11 into two sections: the first section is from the dragon gum part 17 to the four emblems 184 and is provided with a first section of piano face; the second segment is from four emblems 184 to Yue mountain 14, and has a second segment of face. According to experimental verification, the structure of the first section of the piano face is a main factor affecting Gu Qinyin efficiency. In general, when the height of the string from the four emblems becomes smaller, the concave distance of the corresponding first section of the face of the string becomes smaller, specifically determined according to the diameter of the string. In the embodiment, when the 1 string 131 is 7.2mm higher than the 184 points of the four emblems, the midpoint of the first section of the piano face is selected to be the lowest point of the concave, and the concave distance is 1.3mm; the 4 strings are 7.16mm higher than the four emblems, and the corresponding first section of the piano face is concave by 1.28mm;7 strings are 7.15mm higher than the four emblems, the corresponding first section of the strings are concave at a distance of 1.28mm, the rest strings are sequentially erected on the guqin panel 11 according to the assembly sequence, the heights from the four emblems 184 are different, and the control tolerance is within +/-0.1 mm. At this time, when the strings 13 are excited by external force to sound, the guqin does not generate brake sound similar to sand sound and/or sound of beating the strings to the surface, and the phenomenon of 'anti-finger' does not occur when the strings are plucked, so that the strings can be easily pressed, the strings also keep the elasticity, and the user experience (hand feeling) is also optimal.

In another embodiment, the 1 string 131 may be 7.18mm higher than the four-badge 184, and the concave distance of the maximum concave point (i.e. the middle point) of the first section of the face is 1.25mm; the heights of the rest six strings from 184 points of the four emblems are reduced and are larger than 7.1mm, the concave distances of the first section of the piano face corresponding to each piano string are also reduced in sequence and are larger than 1.2mm, and the tolerance is within +/-0.1 mm.

In another embodiment, the concave distance of the first section of the face corresponding to the strings cannot exceed 1.4mm and cannot be lower than 1.2mm; accordingly, the height of the string from the four emblems cannot exceed 7.3mm nor be lower than 7.1mm. Further, according to experimental verification, the structure of the second section of the face has little influence on Gu Qinyin effect, and therefore, the size of the second section of the face is determined according to the assembly relationship between the mountain 14 and the strings 13. Specifically, the second section of face is not higher than the first section of face, i.e., the surface between the four emblem 184 and the mountain 14 is not higher than the surface between the four emblem 184 and the dragon gum part 17, i.e., the four emblem 184 is determined as the highest point of the face. In this embodiment, the second section of face is a slope inclined to the underside of the mountain 14. In another embodiment, the second section of face is an upwardly convex curved face sloping downward from the mountain 14, and the curvature may be small for the purpose of ensuring the harmony of the appearance and aesthetics of the ancient organ.

Further, the guqin panel 11 is provided with a clamping groove, and the mountain 14 is vertically fixed on the guqin panel 11 by being embedded in the clamping groove and is positioned in front of the exposed portion 16.

Further, the surface concave distance between the four emblem 184 and the dragon gum portion 17 is not more than 1.4mm, and the height of the string 13 passing through the four emblem 184 is not more than 7.4mm.

Further, the portion of the mountain 14 protruding from the face plate 11 is between 17 and 18mm.

It should be noted that in the claims and the description of this patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The three-dimensional curved surface structure of the guqin panel is characterized by comprising the guqin panel, and a string and a mountain erected on the guqin panel, wherein the mountain is vertically erected in front of a bearing part and is provided with string eyes corresponding to the string, and the string comprises 1-7 strings and extends from a dragon gum part to the mountain respectively and is fixed through the string eyes;

2. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the surface between the four emblems and the mountain is a slope inclined to the underside of the mountain.

3. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the surface between the four emblems and the mountain is no higher than the surface between the four emblems and the dragon gum portion.

4. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the tolerance of the concave distance is ± 0.1mm; the tolerance of the string to the height of the four emblems is + -0.1 mm.

5. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the chord eye is positioned below the height of the mountain.

6. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the string eyes are disposed at the top of the mountain.

7. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the middle section of the surface between the four emblems and the dragon gum portion is concave by 1.3mm; the 1-7 strings extend from the dragon gum part to the Yueshan and pass through the position of the four logos of the Guqin panel, which is vertical to the plane of the Guqin panel and extends upwards by 7.2 mm.

8. The three-dimensional curved surface structure of the guqin panel according to claim 1, wherein the guqin panel is provided with a clamping groove, and the mountain is vertically fixed on the guqin panel by being embedded in the clamping groove and is located in front of the exposed portion.

9. The three-dimensional curved surface structure of the guqin panel of claim 1, wherein the concave distance is not less than 1.2mm and not more than 1.4mm, and the string is not less than 7.1mm and not more than 7.4mm from the height of the four emblems.

10. The three-dimensional curved surface structure of the guqin panel according to claim 1, wherein the length of the portion of the Yuexian protruding from the guqin panel is 17-18 mm.