CN210896577U - Tuning structure for stringed instrument panel - Google Patents

Abstract

The utility model discloses a tuning structure for a stringed instrument panel, which comprises a first plate, a honeycomb sandwich plate and a second plate which have the same shape and are correspondingly arranged in a laminating way, wherein the honeycomb sandwich plate is arranged between the first plate and the second plate, the outer surface of the first plate is used for being stuck on the stringed instrument panel, and the second plate is provided with string fixing holes; the first plate, the honeycomb sandwich plate and the second plate all comprise sound beam main bodies, one side of the first end of each sound beam main body is provided with a middle sound beam group, each middle sound beam group comprises at least two middle sound beams which are arranged in parallel, and the other side of the first end of each sound beam main body is provided with an arc-shaped beam; a bass beam group is arranged at the second end of the sound beam main body and comprises a plurality of bass beams; the sound beam main body, the middle sound beam group, the arc beam and the bass beam group are of an integrally formed structure. This a tuning structure for stringed instrument panel can replace sound beam and musical instrument bridge plate, is favorable to simplifying the manufacture process of stringed instrument panel, improves the preparation efficiency, promotes panel structure's stability and tone quality.

Description

Tuning structure for stringed instrument panel

Technical Field

The utility model relates to a stringed instrument technical field especially relates to a tuning structure for stringed instrument panel.

Background

The guitar is one of stringed musical instruments, and is a popular musical instrument. The sound production principle of the guitar is consistent with that of most stringed instruments, the strings are driven to vibrate by poking the strings, and then the strings drive the instrument panel to vibrate, so that air inside the resonator resonates to produce sound, and the musical instrument can hear the sound of the musical instrument. The guitar panel is the most critical part affecting the acoustic quality of the guitar, and the manufacturing technology of the guitar panel can be widely applied to stringed instruments.

At present, the stringed instruments on the market mainly use wood stringed instruments as the main parts, the panels of the stringed instruments are formed by splicing wood plates, and in order to bear the tension of strings, the back of the panels needs to be provided with a wood truss structure for supporting and fixing, and meanwhile, the panels play a role in adjusting tone. As shown in fig. 1, the acoustic guitar panel is composed of a panel 1, a beam 2 and a bridge plate 3. The panel part is generally formed by splicing two wood boards, and in order to ensure the rigidity of the panel parallel to the direction of the strings, strict requirements on the cutting mode and the grain trend of wood are required. The traditional stringed instrument sound beam is fixed on the panel by cutting and bonding wood, thereby playing the role of supporting the panel and improving the integral rigidity of the panel, so that the traditional stringed instrument sound beam can bear the tension of strings and enrich the sound frequency section of the instrument. The sound beam is generally made of maple with high hardness. The bridge plate is a structure used for strengthening below the panel, and the upper surface of the bridge plate is provided with a drilling hole for bearing a fixing nail of a string.

The panel in the prior art adopts a sound beam structure, a plurality of sound beams 2 are needed to be used and matched with the bridge plate 3 to be arranged at different positions of the panel, the sound beams are needed to be bonded to the panel by adopting a bonding process in the sound beam mounting process, the bonding of one sound beam is usually completed manually, the process is complicated, the manufacturing period is long, the adjusting process is complex, and the whole body is moved by pulling one sound beam, so that the experience and the technical requirement on a pianist are higher, the adjustment and bonding of different positions of a plurality of sound beams can be completed, and the quality of the mass-manufactured products is difficult to ensure because the excellent degree of the panel manufacturing depends on the experience and the technique of the pianist to a great extent; in addition, a large amount of glue is needed in the manufacturing process, which is not good for the health of the manufacturer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tuning structure for stringed instrument panel, it can replace sound roof beam and musical instrument bridge plate, is favorable to simplifying the manufacture process of stringed instrument panel, improves the preparation efficiency, promotes panel structure's stability and tone quality simultaneously.

In order to achieve the above object, the present invention provides a tuning structure for a stringed instrument panel, which includes a first plate, a honeycomb sandwich panel and a second plate, wherein the first plate, the honeycomb sandwich panel and the second plate are identical in shape and are correspondingly attached to each other, the honeycomb sandwich panel is disposed between the first plate and the second plate, the outer surface of the first plate is used for being adhered to the stringed instrument panel, and the second plate is provided with string fixing holes;

the first plate, the honeycomb sandwich plate and the second plate all comprise sound beam main bodies, each sound beam main body is provided with a first end and a second end, a middle sound beam group is arranged on one side of the first end of each sound beam main body and comprises at least two middle sound beams which are arranged in parallel, and an arc-shaped beam is arranged on the other side of the first end of each sound beam main body; a bass beam group is arranged at the second end of the sound beam main body and comprises a plurality of bass beams;

the sound beam main body, the middle sound beam group, the arc beam and the bass beam group are of an integrally formed structure.

Preferably, the outer edge of the arc-shaped beam is shaped to correspond to the contour of a sound hole in a faceplate of a stringed instrument.

Preferably, a first sound reinforcing beam protruding towards one side is arranged between the middle sound beam group and the bass beam group.

Preferably, a second sound reinforcing beam protruding towards the other side is further arranged between the middle sound beam group and the bass beam group;

the first sound reinforcing beam and the middle sound beam group and the bass beam group are provided with smooth transition structures, and the second sound reinforcing beam and the arc beam and the bass beam group are also provided with smooth transition structures.

Preferably, the string fixing hole is provided at a position of the tone beam main body corresponding to the first reinforcing tone beam.

Preferably, two bass beams at the outermost side of the bass beam group are respectively provided with an auxiliary sound beam.

As a preferred scheme, the honeycomb sandwich plate is made of aramid fiber paper; the first plate and the second plate are all made of carbon fiber composite boards.

Preferably, the thickness of the honeycomb sandwich plate ranges from 1mm to 4mm, and the thickness of the first plate and the second plate ranges from 0.1mm to 1 mm.

Preferably, the honeycomb shape of the honeycomb sandwich panel is a hexagon, a triangle, a quadrangle or a circle which is spaced or connected.

Preferably, the number of the mediant beams in the mediant beam group is 2-4, and the number of the bass beams in the bass beam group is 3.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a tuning structure for stringed instrument panel, including the same shape and laminating first plate, honeycomb sandwich panel and the second plate that sets up, the honeycomb sandwich panel is located between first plate and the second plate all includes the sound beam main part, and one side of the first end of sound beam main part is equipped with the centre tone beam group, and the centre tone beam group includes two at least centre tone roof beams that arrange side by side, and the opposite side of the first end of sound beam main part is equipped with the arc beam; the second end of tone beam main part is equipped with bass beam group, and bass beam group includes many bass beams, pastes the surface of first plate on the stringed instrument panel, is equipped with the string fixed orifices on the second plate for fixed string. The sound beam main body, the middle sound beam group, the arc beam and the bass beam group are arranged into an integrally formed structure, the structure is equivalent to all traditional independent sound beams and bridge plates, the structure is stable, the tension of strings on a panel can be ensured, only the whole body is required to be adhered to the panel during installation, the structure is convenient to trim and adjust the position, the panel manufacturing is simplified, the manufacturing efficiency is improved, and meanwhile, the error caused by manually adhering one sound beam can be reduced, so that the quality stability of stringed instruments such as a guitar is ensured; moreover, the weight can be reduced through the arrangement of the middle-layer honeycomb sandwich plate, so that the panel of the stringed instrument vibrates more fully, and the sounding quality of the panel is improved. Therefore, the guitar panel adopts the tuning structure, so that the structure is stable, the weight is reduced, and the tone quality is realized at the same time.

Drawings

FIG. 1 is a schematic diagram of a prior art guitar face plate;

fig. 2 is an exploded view of a tuning structure for a face plate of a stringed musical instrument according to an embodiment of the present invention;

FIG. 3 is a front view of a faceplate for a stringed musical instrument provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second plate according to an embodiment of the present invention;

fig. 5 is a schematic view of a honeycomb structure of a honeycomb sandwich panel according to an embodiment of the present invention.

10, a first plate; 20. a honeycomb sandwich panel; 30. a second plate member; 31. a string fixing hole; 40. a sound beam main body; 41. a middle beam group; 411. a middle sound beam; 42. an arc beam; 43. a bass beam set; 431. a bass beam; 432. an auxiliary sound beam; 44. a first sound reinforcement beam; 45. a second sound reinforcement beam; 46. a transition structure.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are used for distinguishing one type of information from another, and are not to be construed as indicating or implying relative importance.

Referring to fig. 2 and fig. 3, a tuning structure for a stringed instrument panel according to the present invention is schematically shown, which includes a first plate 10, a honeycomb sandwich panel 20 and a second plate 30, which have the same shape and are correspondingly attached to each other, wherein the honeycomb sandwich panel 20 is disposed between the first plate 10 and the second plate 30, the outer surface of the first plate 10 is adhered to the stringed instrument panel, and the second plate 30 is provided with string fixing holes 31 for fixing strings. The first plate 10, the honeycomb sandwich panel 20 and the second plate 30 respectively comprise a sound beam main body 40, the sound beam main body 40 is provided with a first end and a second end, one side of the first end of the sound beam main body 40 is provided with a middle sound beam group 41, the middle sound beam group 41 comprises at least two middle sound beams 411 which are arranged in parallel, and the other side of the first end of the sound beam main body 40 is provided with an arc beam 42; the second end of the sound beam main body 40 is provided with a bass beam set 43, and the bass beam set 43 includes a plurality of bass beams 431. It is important that the sound beam main body 40, the center sound beam group 41, the arc beam 42 and the bass beam group 43 are integrally formed.

It is understood that the first plate 10, the honeycomb sandwich panel 20 and the second plate 30 are identical in shape and each include a sound beam main body 40, a middle sound beam group 41, an arc beam 42 and a bass beam group 43.

Based on the tuning structure for the stringed instrument panel with the technical characteristics, the tone beam main body 40, the middle tone beam group 41, the arc-shaped beam 42 and the bass beam group 43 are arranged to be of an integrally formed structure, and specifically, the shape of the integrally formed structure can be equivalently simulated through finite element simulation software, so that all traditional independent tone beams and bridge plates are replaced, the structure is stable, the tension of strings on the panel can be guaranteed, and the strings can be integrally adhered to the panel during installation; moreover, the weight of the honeycomb sandwich panel 20 can be reduced through the middle layer, so that the panel of the stringed instrument vibrates more fully, and the sound quality of the panel is improved. Therefore, the guitar panel adopts the tuning structure, so that stable structure, light weight and high-quality tone quality are realized at the same time.

Preferably, in this embodiment, the number of the midrange beams 411 of the midrange beam group 41 is 2 to 4, the number of the bass beams 431 of the bass beam group 43 is 3, and fig. 3 shows a specific embodiment in which the number of the midrange beams 411 of the midrange beam group 41 is 4, and the number of the bass beams 431 of the bass beam group 43 is 3.

Referring to fig. 3, as a specific embodiment of the tuning structure provided by the present invention, the shape of the outer edge of the arc beam 42 corresponds to the outline of the sound hole on the panel of the stringed instrument, so as to match the sound hole of the panel, that is, when the tuning structure is adhered to the panel, the outer edge of the arc beam 42 is adhered along the arc outline of the sound hole of the panel, so that the sound hole is disposed on one side of the panel, thereby increasing the vibrating area of the panel and improving the vibrating effect.

As a preferred embodiment, referring to fig. 3, a first reinforcing beam 44 protruding to one side is provided between the center tone beam group 41 and the bass beam group 43 to reinforce the strength of the entire tuning structure, so that the panel structure can be more stable when the tuning structure is attached to the panel of the stringed instrument.

Further preferably, in order to further improve the stability of the panel structure, a second sound reinforcing beam 45 protruding to the other side is further provided between the middle sound beam group 41 and the bass beam group 43, and the first sound reinforcing beam 44 and the second sound reinforcing beam 45 may function as reinforcing ribs.

Further, as shown in fig. 3, a smooth transition structure 46 is provided between the first sound-reinforcing beam 44 and the middle sound beam group 41 and the bass sound beam group 43, and a smooth transition structure 46 is also provided between the second sound-reinforcing beam 45 and the arc beam 42 and the bass sound beam group 43, so as to improve the stability of the connection and ensure the structural strength of the panel.

Illustratively, in this embodiment, referring to fig. 3 and 4, due to the structural arrangement of the first tuning beam 44, the structural strength is improved, and the string fixing holes 31 are disposed at the positions of the beam main body 40 corresponding to the first tuning beam 44, so as to improve the stability of the overall structure of the panel, prevent the panel from being damaged in advance at the string fixing holes 31 which are frequently stressed, and prolong the service life of the panel.

Further preferably, as shown in fig. 3, the two bass beams 431 at the outermost side of the bass beam set 43 are respectively provided with auxiliary sound beams 432, so that the volume of the panel can be further increased, and the sound quality of the stringed instrument can be ensured.

In a preferred embodiment, the honeycomb sandwich panel 20 is made of aramid paper (also called "aramid fiber paper"), which is used as a sandwich layer to help the conduction of sound and make the panel sound more loud; the flame-retardant cable has good flexibility, good tensile and tear resistance, good thermal stability, high flame retardance and excellent electrical insulation performance; the first plate 10 and the second plate 30 are both made of carbon fiber composite plates, specifically, are laminated plates pressed by carbon fiber prepreg materials, and the honeycomb sandwich panel 20 is bonded with the first plate 10 and the second plate 30 by aviation-grade gummed paper and is pressed into an integrated structure by a mould pressing process. Aramid paper is as the intermediate layer, and carbon fiber composite sheet is at both sides face, and this kind of structure can be when keeping string tension on the panel, and weight that significantly reduces for the panel vibration is more abundant, has solved traditional wooden sound roof beam's restriction from this, and the vibration is not abundant, receives the big shortcoming of temperature and humidity influence, thereby improves the vocal tone quality of panel.

Further preferably, the thickness range of the honeycomb sandwich panel 20 is 1mm to 4mm, and the thickness ranges of the first plate 10 and the second plate 30 are 0.1mm to 1mm, so that a light, stable and good-quality panel can be ensured based on the tuning structure in the range.

Specifically, referring to fig. 5, the honeycomb shape of the honeycomb sandwich panel 20 is a hexagon, a triangle, a quadrangle, or a circle, etc. which are spaced or connected, the honeycomb shape of the honeycomb sandwich panel 20 of the present invention includes but is not limited to the structures of double circular honeycomb, diamond honeycomb, regular hexagonal honeycomb, regular quadrilateral honeycomb, and regular hexagonal honeycomb, and can also be a honeycomb structure formed by any other shapes, which is not described herein again.

The utility model discloses the simulation method of tuning structure's shape does: a3 d model of a traditional wooden guitar is built in finite element software, parameters such as material parameters of wood and string tension for applying force to a panel are input, mechanical analysis and modal analysis are carried out on the panel, and the stress deformation of the panel and the modal vibration mode under vibration are obtained. The method is characterized in that simulation analysis of the wooden guitar is used as a reference, material parameters are replaced by parameters of the carbon fiber woven cloth and the honeycomb plate, a simulation result is gradually close to a reference value in a mode of simulating stress deformation and vibration mode, and finally the shape and the structure of the whole tuning structure are designed, so that the designed shape can be equivalent to or better than that of a traditional sound beam.

It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

To sum up, the utility model provides a tuning structure shape is the same and the first plate 10, honeycomb sandwich panel 20 and the second plate 30 that the laminating set up for stringed instrument panel, the three sets up to integrated into one piece structure, the equivalence tradition sound roof beam and the bridge board, stable in structure can guarantee the tension of string on the panel, only need wholly paste to the panel during the installation can, can simplify the panel preparation, improve the preparation efficiency, can reduce artificial error simultaneously, thereby guarantee the stability of stringed instrument quality such as guitar; moreover, the weight can be reduced by arranging the middle-layer honeycomb sandwich panel 20, so that the panel of the stringed instrument vibrates more fully, and the sound quality of the panel is improved. Therefore, the guitar panel adopts the tuning structure, so that the structure is stable, the weight is reduced, and the tone quality is realized at the same time, and the guitar panel has higher market popularization value.

The method and the device not described in detail in the present invention are prior art and will not be described in detail.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A tuning structure for a stringed instrument panel is characterized by comprising a first plate, a honeycomb sandwich plate and a second plate which are identical in shape and correspondingly attached, wherein the honeycomb sandwich plate is arranged between the first plate and the second plate, the outer surface of the first plate is used for being stuck on the stringed instrument panel, and string fixing holes are formed in the second plate;

the first plate, the honeycomb sandwich plate and the second plate all comprise sound beam main bodies, each sound beam main body is provided with a first end and a second end, a middle sound beam group is arranged on one side of the first end of each sound beam main body and comprises at least two middle sound beams which are arranged in parallel, and an arc-shaped beam is arranged on the other side of the first end of each sound beam main body; a bass beam group is arranged at the second end of the sound beam main body and comprises a plurality of bass beams;

the sound beam main body, the middle sound beam group, the arc beam and the bass beam group are of an integrally formed structure.

2. The tuning structure of claim 1, wherein the outer edge of the arched beam is shaped to correspond to the contour of a sound hole in a faceplate of a stringed musical instrument.

3. The tuning structure according to claim 1, wherein a first reinforcing beam that is convex to one side is provided between the midrange beam group and the bass beam group.

4. The tuning structure according to claim 3, wherein a second reinforcing beam protruding to the other side is further provided between the midrange beam group and the bass beam group;

the first sound reinforcing beam and the middle sound beam group and the bass beam group are provided with smooth transition structures, and the second sound reinforcing beam and the arc beam and the bass beam group are also provided with smooth transition structures.

5. The tuning structure according to claim 3, wherein said string fixing hole is provided at a position of said tone beam main body corresponding to said first reinforcing tone beam.

6. The tuning structure according to any one of claims 1 to 5, wherein auxiliary beams are provided on the two bass beams on the outermost side of the bass beam group, respectively.

7. The tuning structure according to any one of claims 1 to 5, wherein the honeycomb sandwich panel is made of aramid paper; the first plate and the second plate are all made of carbon fiber composite boards.

8. The tuning structure of claim 7, wherein the honeycomb sandwich plate has a thickness in a range of 1mm to 4mm, and the first and second plate members have a thickness in a range of 0.1mm to 1 mm.

9. The tuning structure according to any one of claims 1 to 5, wherein the honeycomb shape of the honeycomb sandwich panel is a hexagonal shape, a triangular shape, a quadrangular shape or a circular shape which are spaced or connected.

10. The tuning structure of claim 1, wherein the number of the centre beams of the centre beam group is 2-4, and the number of the bass beams of the bass beam group is 3.

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