CN201262820Y

CN201262820Y - Improved structure of classicality guitar

Info

Publication number: CN201262820Y
Application number: CNU2008202016061U
Authority: CN
Inventors: 江伟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-08
Filing date: 2008-10-08
Publication date: 2009-06-24
Anticipated expiration: 2018-10-08

Abstract

The utility model relates to an improved structure of a classical guitar, comprising a resonator panel, the upper part of which is opened with sound holes; the inner side of the panel is provided with two pairs of crossed girders which are respectively arranged at the two sides of the sound holes. Firstly, the structure can strengthen the structural strength of the panel and plays a more important role in increasing the vibration energy of the sound than the traditional structure, which is equal to increasing the vibration area of effective sound of the panel. Almost the whole area of the panel has the vibration of effective sound, both the main sound beam and the girders of the two pairs of crossed girders have important role in sound vibration, thus achieving the effect of increasing the volume. Secondly, the layout of the upper part of the beam frame structure of the panel is more uniform, which can reduce the size of the cross section of the two pairs of crossed girders; therefore, the improved structure is beneficial to increasing or controlling the vibration amplitude and sound lasting length of the panel, thus improving the volume, tone quality and timbre.

Description

A kind of structure-improved of classical guitar

Technical field

The utility model relates to a kind of structure-improved of classical guitar.

Background technology

The common way of the beam frame structure of tradition classical guitar panel inboard is a (see figure 1): horizontal or oblique crossbeam (51), (52) are respectively arranged in the both sides up and down at the inboard the first half of panel (50), sound hole (53), arrange the main sound beam (54) of various arrangements (fan-shaped or netted etc. arrangement) mode in inboard the latter half of panel (being the principal oscillation district), in addition at auxiliary sound beam (55) of some location arrangements and structure beam (56).

In the said structure, crossbeam (51), (52) mainly be the effect of playing reinforced panel (50) structural strength, also play the booster action that increases near the panel vibration of crossbeam in addition, but since from crossbeam (51) to this part part panel (57) that is split by crossbeam the crossbeam (52), with the direction of vibration of inboard the latter half of panel (being the principal oscillation district) part being arranged is reversal of vibrations each other, consumed the energy of vibration, but acoustic energy is not effectively increased, even also have the part acoustic energy cancelling each other, what this kind structure played main effect for the vibration of sound is main sound beam (54).

In the said structure,, can only effectively be delivered to crossbeam (51) and crossbeam (52) the part panel of scope in addition, therefore have only the part panel to produce the vibration of effective sound owing to be fixed on the vibrations of strings at bridge and these two ends of scroll head.

In the said structure, crossbeam (51), (52) make the beam frame structure layout of the first half of panel even inadequately, be difficult for changing, so difficult supporting means of making various adjusting guitar tonequality and tone color of the panel of this part, and the crossbeam sectional dimension need be done more, just can reach the structural strength of stablizing the respective area panel, be unfavorable for increasing the Oscillation Amplitude and the tenuto length of panel, difficult performance improves the effect of volume, tonequality, tone color.Also have, big girder construction is single, makes various supporting regulating measures for the principal oscillation district that improves panel is also difficult.Moreover crossbeam (51), (52) length are shorter, and effectively the area of support panel is less, is unfavorable for increasing the amount sense of bass and the extension of low frequency.

The utility model content

The utility model is intended to overcome above-mentioned the deficiencies in the prior art, and a kind of structure-improved of classical guitar is provided, and the structural strength that it not only can reinforced panel, makes that the beam frame structure layout of the first half of panel is more even, and can increase volume.

The structure-improved of a kind of classical guitar that provides according to the utility model comprises the resonant tank panel, has opened sound hole in resonant tank panel the first half, and described panel inboard is provided with two pairs and intersects crossbeams, and described two pairs intersect crossbeams and lay respectively at the both sides of described sound hole.

The utility model also has following additional technical feature:

The angle of described two pairs of intersection crossbeams is identical or inequality, and described two pairs of intersection crossbeams are symmetry or asymmetric setting with respect to the sound hole center line.

Described two pairs of intersection crossbeams are divided into several subtriangular zones with the inboard upper half part of panel.

One of them delta-shaped region is different with the thickness of other delta-shaped region.

One of them delta-shaped region is identical with the thickness of other delta-shaped region.

The inboard the first half of described resonant tank panel is provided with the structure beam.

At least one pair of two adjacent delta-shaped region is connected by the passage that is arranged on the corresponding intersection crossbeam.

Described two pairs of intersection crossbeams lay respectively at the upper and lower both sides of described sound hole, described panel the latter half inboard is provided with several main sound beams, and oblique one of them extension, two extensions of extending down of intersection crossbeam that is arranged in the sound hole downside is provided with at least one passage.

The part main sound beam stretch in the passage in the lump or each passage with wherein a main sound beam is corresponding, main sound beam stretches out in the corresponding passage back to the inboard the first half extension of panel.

The utility model compared with prior art, have following advantage: the utility model is provided with two pairs of intersection crossbeams in described panel inboard, described two pairs of intersection crossbeams lay respectively at the both sides of described sound hole, the structural strength that this structure can reinforced panel at first, and also can play the effect bigger than traditional structure for the vibrational energy aspect that increases sound, be equivalent to increase the vibration area of effective sound of panel, it almost is the vibration that the monoblock panel of entire area all produces effective sound, main sound beam intersects crossbeam and all plays main effect jointly for the vibration of sound with two pairs, can reach the effect that increases volume.Secondly, make that the beam frame structure layout of the first half of panel is more even, can suitably reduce by two pairs of sectional dimensions of intersecting crossbeams, help like this increasing or the Oscillation Amplitude and the tenuto length of control panel, thereby improve volume, tonequality, tone color.

Description of drawings

Fig. 1 is the synoptic diagram of guitar panel inboard in the prior art.

Fig. 2 is the synoptic diagram of the structure improved panel inboard of a kind of classical guitar of the utility model.

Fig. 3 is the structural representation at A place among Fig. 2.

Embodiment

Referring to Fig. 2 to Fig. 3, structure improved a kind of preferred implementation of a kind of classical guitar of the utility model is shown, comprise resonant tank panel 1, opened sound hole 10 in resonant tank panel 1 the first half, described panel inboard is provided with two pairs of intersection crossbeams 2,3, described two pairs of intersection crossbeams lay respectively at the both sides of described sound hole, this structure can reinforced panel structural strength, and also can play the effect bigger than traditional structure for the vibrational energy aspect that increases sound, be equivalent to increase the vibration area of effective sound of panel, it almost is the vibration that the monoblock panel of entire area all produces effective sound, main sound beam intersects crossbeam and all plays main effect jointly for the vibration of sound with two pairs, can reach the effect that increases volume.Secondly, make that the beam frame structure layout of the first half of panel is more even, can suitably reduce by two pairs of sectional dimensions of intersecting crossbeams, help like this increasing or the Oscillation Amplitude and the tenuto length of control panel, thereby improve volume, tonequality, tone color.

The angle of described two pairs of intersection crossbeams is identical or inequality, described two pairs of intersection crossbeams are symmetry or asymmetric setting with respect to the sound hole center line, described two pairs intersect crossbeams and the inboard upper half part of panel are divided into several are subtriangular regional 20, play the proportionality action of regulating the overall sound vibration frequency.Several can be that one of them delta-shaped region is different with the thickness of other delta-shaped region in subtriangular regional 20, also can be that one of them delta-shaped region is identical with the thickness of other delta-shaped region, with the part of adjusting panel and qin case or the balanced and variation of overall resonance frequency, play the effect that improves tonequality, tone color and tenuto.

The inboard the first half of described resonant tank panel is provided with structure beam 4.Structure beam 4 can be to intersect crossbeam and combine and be arranged in web form with two pairs, also can be other spread pattern.

Described two pairs intersect crossbeams lay respectively at described sound hole on, following both sides (said here up and down both sides are that the above-below direction with Fig. 2 is as the criterion), described panel the latter half inboard is provided with several main sound beams 6, be positioned at oblique two extensions 30 of extending down of intersection crossbeam of sound hole downside, one of them extension is provided with at least one passage 5 in 31, the part main sound beam stretch in the passage in the lump or each passage with wherein a main sound beam is corresponding, after stretching out in the corresponding passage, extends main sound beam to the inboard the first half of panel, with the vibration area and the length of increase bass zone, thus the amount sense and the tenuto of improvement or control bass.

(this passage does not illustrate at least one pair of two adjacent delta-shaped region in the drawings by being arranged on passage on the corresponding intersection crossbeam, can be referring to the passage 5 of front) be connected, this structure purpose is to make to allow the panel of the adjacent delta-shaped region that needs form locally connected, can make the vibration of inboard the latter half 33 of panel (being the principal oscillation district), directly be delivered to more multizone by panel, thereby increase variable vibration area and vibration mode, reach multiple effect.Because the beam frame structure layout of the first half of the utility model panel is more even, when taking above measure, can influence whole structural strength yet, and can realize the variation of rigidity and flexible structure or the multiple effect of balance.

Claims

1, a kind of structure-improved of classical guitar, comprise resonant tank panel (1), opened sound hole (10) in resonant tank panel (1) the first half, it is characterized in that described panel inboard is provided with two pairs of intersection crossbeams (2,3), described two pairs of intersection crossbeams lay respectively at the both sides of described sound hole.

2, the structure-improved of classical guitar according to claim 1 is characterized in that the angle of described two pairs of intersection crossbeams is identical or inequality, and described two pairs of intersection crossbeams are symmetry or asymmetric setting with respect to the sound hole center line.

3, the structure-improved of classical guitar according to claim 1 is characterized in that described two pairs of intersection crossbeams are divided into several subtriangular zones (20) with the inboard the first half of panel.

4, the structure-improved of classical guitar according to claim 3 is characterized in that one of them delta-shaped region is different with the thickness of other delta-shaped region.

5, the structure-improved of classical guitar according to claim 3 is characterized in that one of them delta-shaped region is identical with the thickness of other delta-shaped region.

6, the structure-improved of classical guitar according to claim 1 is characterized in that the inboard the first half of described resonant tank panel is provided with structure beam (4).

7, the structure-improved of classical guitar according to claim 3 is characterized in that at least one pair of two adjacent delta-shaped region is connected by the passage that is arranged on the corresponding intersection crossbeam.

8, the structure-improved of classical guitar according to claim 3, it is characterized in that described two pairs of intersection crossbeams lay respectively at the upper and lower both sides of described sound hole, described panel the latter half inboard is provided with several main sound beams (6), and oblique one of them extension, two extensions (30,31) of extending down of intersection crossbeam that is arranged in the sound hole downside is provided with at least one passage (5).

9, the structure-improved of classical guitar according to claim 8, it is characterized in that the part main sound beam stretch in the passage in the lump or each passage with wherein a main sound beam is corresponding, main sound beam stretches out in the corresponding passage back to the inboard the first half extension of panel.