CN201868084U

CN201868084U - Novel guitar

Info

Publication number: CN201868084U
Application number: CN201020243565XU
Authority: CN
Inventors: 赵振伟; 周万昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-01
Filing date: 2010-07-01
Publication date: 2011-06-15
Anticipated expiration: 2020-07-01

Abstract

The utility model relates to a novel guitar. A face plate, or the face plate, a bottom plate and side plates are made of carbon fiber material, and the thickness of the plates is 1.2-1.5mm. A carbon fiber plate is used to replace the original wood or plywood plates, the frequency response characteristic of the guitar is improved, the played tone is elegant and pure, the defects of the wood material of being easy to crack and deform and being influenced by environmental conditions and the like can be avoided, the durability of the guitar is ensured, and the double optimization of the structure and the property of the guitar can be realized.

Description

A kind of novel guitar

Technical field

The utility model relates to the manufacturing technology of musical instrument, is specifically related to a kind of novel guitar.

Background technology

The material of the resonance box that the acoustics of string music kind musical instrument is used with it and structure are closely related.The guitar resonance box generally includes panel, base plate (backboard) and formation guitar shape and supports two qin waists of these two plates or claim side plate.Aspect guitar sheet material, the panel of high-grade guitar uses light and the timber of good springiness, as veneers such as kahikatea, spade wood, rose wood, redwood, the guitar of common grade is then generally used making such as high-quality linden, maple wood, require to making used timber that texture is straight, density is even, no knot, small holes caused by worms etc., material requirements is high more, and cost is high more.For the inconsistent making of the quality of tackling wood materials requires the problems such as cost rising that cause, use the constituent material of scale board usually as the guitar resonance box.This substitute is not for acoustic mass is provided, and is based on the simplification of making and the reduction of cost.And scale board system guitar sheet material is not only excellent inadequately on acoustic mass, and the experience several years, wear print just unavoidably occurs.

Along with the research and development of carbon fibre material, people begin to recognize this material lightweight, high-modulus, high strength, do not ftracture, excellent properties such as anticorrosive can be used to reform the musical instrument manufacturing technology.Experience the development of decades, the technology of preparing of this new material of carbon fiber is comparatively ripe at home, and carbon fibre material has been applied to space flight and aviation, strategic arms, automobile, traffic etc. with its superior mechanical property.This new material technology brings new reform opportunity also for undoubtedly the manufacturing technology of musical instrument.Be preparation lightweight, durable, and the guitar that tonequality improves provides new selection.But the report of finding design at present, only include and use carbon fibre composite replacing wood or scale board as the qin box material, and be the sandwich structure design of sandwich style, promptly skin is a carbon cloth, the inner clamps layer material is wooden, scale board, cardboard etc., this design improves not quite the specific modulus of sounding board, and makes complexity, is never promoted the use of.

The utility model content

In order to improve the Frequency Response of guitar resonant tank, solve the little problem of existing guitar pronunciation volume, the utility model provides a kind of novel guitar.

The guitar that the utility model provides, the panel that it is characterized in that guitar are to be the plate of 1.2-1.5mm with the thickness that carbon fiber is made; Perhaps,

The guitar that the utility model provides is characterized in that the panel of guitar and base plate are is the plate of 1.2-1.5mm with the thickness that carbon fiber is made; Perhaps,

The guitar that the utility model provides, panel, base plate and the side plate that it is characterized in that guitar all are to be the plate of 1.2-1.5mm with the thickness that carbon fiber is made.

The method for making of panel, base plate and side plate that the use carbon fiber board that the utility model provides prepares guitar is as follows: (1) makes carbon fibre initial rinse fabric to carbon fiber by epoxy resin-impregnated; (2) carbon fibre initial rinse fabric in layer direction of warp and weft alternately be superimposed as laminates; (3) be 130 ℃ in temperature, hot-forming through 500 tons of press with the mould one-step solidifications, obtain panel, base plate and the side plate of the guitar that carbon fiber board makes respectively.

Method of testing: guitar provided by the invention has been carried out following test:

1, expert's subjective assessment.The expert makes quantitatively music signal with sense of hearing or estimates qualitatively, and this method ratio is easier to realize, is to meet the aesthetic the most key link of human psychological with people's ear to the comprehensive impression evaluation of musical instrument product acoustic quality.

2, metering system is gathered in acoustic propagation: gather the acoustic signals that guitar sends, adopt computer software to be handled, the resonance sound wave spectrum of gathering is analyzed.And adopt phonometer that the raising of volume is tested.

Test result: by expert appraisal and experiment test, see embodiment 1-2, prove with carbon fiber sheet and make guitar panel and base plate and side plate, make the resonance of the voice effect of guitar obviously be better than the guitar of former use scale board sheet material.It is more clear bright, evenly pure, rich graceful that the tone color of playing sounds, the resonance sound wave spectrum of collection has stronger and wide in range characteristic, and the sound intensity improves.

Beneficial effect: 1, since carbon fiber board have lightweight, high-modulus, high strength, indeformable, do not ftracture, rub resistance, anticorrosive, characteristics such as changes in environmental conditions such as resisting temperature, humidity, therefore the fine requirement of satisfying the comparatively desirable material of guitar musical instrument sounding board, can reach the tonequality fax, improve the purpose of guitar Frequency Response, and guarantee durable in usely, realized the dual raising of guitar structure and performance.

2, adopt carbon fiber interleaving technology in length and breadth, guaranteed the homogenous properties of guitar sounding board, the anisotropy that can avoid sound to bring because of textural difference in material is propagated makes resonance vibrate uniformly on gross area, produces the harmonious resonance sound of associative perception.

3, owing to adopt carbon fiber sheet, make manufacture craft simplify, be easy to machine-shaping and streamline production.

4, the guitar sympathetic response effect that provides of the utility model obviously is better than the guitar of former use scale board sheet material.The tone color grace, the sound intensity improves.

Description of drawings

Fig. 1 is a kind of guitar front view provided by the invention, among the figure, and the 1st, the panel of guitar, 2 is that the side plate, 3 of guitar is the base plate of guitar.

Embodiment

1 one kinds of guitars of embodiment, its panel 1 is to be made by carbon fiber board, thickness is 1.2mm.

The method for making of carbon fiber guitar panel provided by the invention is as follows: (1) makes carbon fibre initial rinse fabric to carbon fiber by epoxy resin-impregnated; (2) carbon fibre initial rinse fabric in layer direction of warp and weft alternately be superimposed as laminates; (3) be 130 ℃ in temperature, hot-forming through 500 tons of press with the mould one-step solidification, obtain carbon fiber guitar panel.

The guitar that uses the carbon fiber panel to make is tested, and the result shows that the tone color of performance sounds more clear bright, evenly pure, rich graceful, and the resonance sound wave spectrum of collection has stronger and wide in range characteristic, and the sound intensity improves.In measurement range 40-80 decibel, on average rise to 5.5% than the sound intensity with the guitar that adopts scale board to make panel.

2 one kinds of guitars of embodiment, its panel 1, side plate 2 and base plate 3 are to be made by carbon fiber board, and the thickness of panel is 1.2mm, and the thickness of base plate and side plate is 1.5mm.

Described guitar, it uses method that carbon fiber board prepares guitar panel, base plate and side plate with embodiment 1, is 130 ℃ in temperature at last, and is hot-forming with the mould one-step solidifications through 500 tons of press, obtains panel, base plate and the side plate of the guitar that carbon fiber board makes.

To the test shows of described guitar, it is more clear bright, evenly pure, rich graceful that the tone color that guitar is played sounds, the resonance sound wave spectrum of collection has stronger and wide in range characteristic, and the sound intensity improves, and it is 7.2% that the sound intensity on average improves number percent.

Claims

1. novel guitar, the panel that it is characterized in that described guitar is that the thickness that carbon fibre material is made is the plate of 1.2-1.5mm.

2. a kind of novel guitar as claimed in claim 1, the base plate that it is characterized in that described guitar are that the thickness that carbon fibre material is made is the plate of 1.2-1.5mm.

3. a kind of novel guitar as claimed in claim 2, the side plate that it is characterized in that described guitar are that the thickness that carbon fibre material is made is the plate of 1.2-1.5mm.