Sound-beam-free sound-gathering radian backboard, resonator and plucked musical instrument
Through the multi-layer arc plate structure of the sound-free beam concentrating arc back plate, the problems of limited vibration and inaccurate reflection direction are solved, better sound focus and resonance effects are achieved, and the sound quality of the plucked instrument is improved.
Patent Information
- Application Number
- CN202420818592.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the prior art, the sound beam of the back plate limits the vibration of the back plate, and the reflection direction and focus are not aligned with the sound hole, making it difficult for the sound in the resonance box to be effectively reflected.
The soundless beam converging arc back plate is adopted, and the back plate body is fixed through a multi-layer arc plate structure. The concave side of the arc plate faces the panel, the focus of the arc plate is located in the sound hole, and the wood texture direction is set to be inconsistent to enhance structural strength and Prevent stress concentration.
The free vibration of the back plate is achieved, the sound focus and resonance effect is improved, and the sound quality and resonance effect of the plucked instrument are better.
Smart Images
Figure CN222260495U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plucked string instruments, in particular to a sound beam-free sound-gathering arc backboard, a resonance box and a plucked string instrument. Background Art
[0002] The resonance box of a plucked instrument, such as a guitar, is an important part of the production of an acoustic guitar. It enhances the sound quality of the guitar, expands the volume and increases the resonance. The resonance box is surrounded by a back panel, side panels and a front panel. The front panel is provided with a sound hole, and the sound in the resonance box is dissipated through the sound hole.
[0003] In the prior art, the backboard includes a backboard body and a sound beam. The backboard body is a flat structure made of wood. The sound beam is fixed to the side of the backboard facing the sound hole. The sound beam is used to enhance the strength of the backboard and prevent the backboard from cracking, and the sound beam has the same curvature.
[0004] The applicant has discovered that the prior art has at least the following technical problems: although the sound beam can enhance the strength of the backboard, it limits the vibration of the backboard body; and in the prior art, the reflection direction and focus of the backboard are not aimed at the position of the face sound hole, making it difficult to reflect the sound in the resonance box from the sound hole position. Utility Model Content
[0005] The purpose of the utility model is to provide a sound beam-free sound-focusing arc backboard, a resonance box and a plucked instrument, so as to solve the technical problem in the prior art that the backboard is difficult to reflect the sound in the resonance box from the sound hole position well and the focused sound performance is poor; the many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the utility model are detailed as follows.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] The utility model provides a beamless sound-gathering arc backboard, comprising a backboard body, wherein the backboard body comprises arc-shaped plates, the number of the arc-shaped plates is more than two layers, the arcs of all the arc-shaped plates are the same, and the adjacent arc-shaped plates are fitted and fixed;
[0008] The concave side of the arc plate is arranged toward the panel, and the focus of the arc plate is located in the sound hole.
[0009] Preferably, the wood grain directions of adjacent curved plates are inconsistent.
[0010] Preferably, the arc-shaped plate comprises a first arc-shaped plate, a second arc-shaped plate, a third arc-shaped plate, a fourth arc-shaped plate and a fifth arc-shaped plate which are bonded and fixed in sequence, and the wood grain directions between any two adjacent arc-shaped plates are different.
[0011] Preferably, the wood grain direction of the first curved plate and the fifth curved plate is arranged along the length direction of the back plate body, and the wood grain direction of the second curved plate is arranged along the width direction of the back plate body;
[0012] The angle between the wood grain directions of any two of the third curved plate, the fourth curved plate, and the fifth curved plate is an acute angle.
[0013] Preferably, the thickness of the arc plate is 0.2 mm-1 mm.
[0014] The utility model also provides a resonance box, comprising side panels, a panel with sound holes and the above-mentioned sound beam-free sound-gathering arc back panel, wherein the side panels, the panel and the back panel body surround a resonance cavity.
[0015] Preferably, the resonance box further comprises a lining strip, wherein the lining strip is fixed to the outer edge of the back panel body, and the side panels are fixed to the lining strip and are sealed to the back panel body.
[0016] Preferably, the resonance box further comprises an upper end wood and a lower end wood, wherein the upper end wood and the lower end wood are respectively fixed to the upper part and the lower part of the side panel, and the panel is fixed to the upper end wood and the lower end wood and is sealed and connected to the side panel.
[0017] The utility model also provides a plucked string instrument, comprising a panel with sound holes and the resonance box.
[0018] Compared with the prior art, the sound-beamless sound-focusing curved backboard, resonance box and plucked string instrument provided by the utility model have the following beneficial effects: the backboard body has a certain curvature and is fixed by two or more layers of curved plates, without the need to glue the sound beam, and without the sound beam to limit the vibration of the backboard; the concave side of the curved plate is arranged toward the panel, and the focus of the curved plate is located in the sound hole, which is convenient for focusing the sound and facilitating the sound in the resonance box to be transmitted after being focused from the sound hole position, thereby improving the sound focusing and resonance effects of the plucked string instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is a schematic diagram of the relative positions of the back panel and the panel of the sound-gathering arc without a sound beam;
[0021] Figure 2 It is a schematic diagram of the exploded structure of the back panel body;
[0022] Figure 3 It is a structural schematic diagram of the backboard body, the upper end wood, the lower end wood and the lining strip;
[0023] Figure 4 It is a structural diagram of the resonance box.
[0024] In the figure, 1, back panel body; 11, curved panel; 111, first curved panel; 112, second curved panel; 113, third curved panel; 114, fourth curved panel; 115, fifth curved panel; 2, panel; 21, sound hole; 3, side panel; 4, lining strip; 51, upper end wood; 52, lower end wood. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In the prior art, the backboard includes a backboard body and a sound beam. The backboard body is a flat plate structure made of wood. The sound beam is fixed to the side of the backboard facing the sound hole. The sound beam is used to enhance the strength of the backboard and prevent the backboard from cracking. The sound beam has the same curvature. Although the sound beam can enhance the strength of the backboard, it limits the vibration of the backboard body. In the prior art, the reflection direction and focus of the backboard are not aligned with the position of the face sound hole, making it difficult to reflect the sound in the resonance box from the sound hole position.
[0029] In view of the above problems, the embodiment of the utility model provides a sound-gathering curved back plate without a sound beam, which facilitates the sound in the resonance box to be focused and transmitted from the sound hole position, thereby achieving better sound gathering and resonance effects of the plucked instrument.
[0030] Combine the following Figure 1-Figure 4 The technical solution provided by the utility model is described in more detail.
[0031] Embodiment 1:
[0032] like Figure 1 and Figure 2 As shown, the sound beam-free sound-gathering arc backboard provided by the utility model comprises a backboard body 1, the backboard body 1 comprises arc-shaped plates 11, the number of the arc-shaped plates 11 is more than two layers, the arcs of all the arc-shaped plates 11 are the same, and the adjacent arc-shaped plates 11 are fixedly fitted everywhere; see Figure 1 As shown, the concave side of the arc plate 11 is arranged toward the panel 2 , and the focus of the arc plate 11 is located in the sound hole 21 .
[0033] The sound-focusing curved backboard without sound beams in this embodiment has a backboard body 1 with a certain curvature and is fixed by two or more layers of curved plates 11. There is no need to glue the sound beams, and there are no sound beams to limit the vibration of the backboard. The concave side of the curved plate 11 is arranged toward the panel 2, and the focus of the curved plate 11 is located in the sound hole 21, which is convenient for focusing the sound and facilitating the sound in the resonance box to be focused and transmitted from the position of the sound hole 21, thereby improving the sound focusing and resonance effects of the plucked instrument.
[0034] Since the sound beam is no longer fixed on the back panel body 1, the sound beam will not limit the vibration of the panel 2 body. In order to prevent the back panel body 1 from breaking, in this embodiment, the wood grain directions of adjacent arc-shaped plates 11 are inconsistent.
[0035] For details, see Figure 2 As shown, the arc plate 11 includes a first arc plate 111, a second arc plate 112, a third arc plate 113, a fourth arc plate 114 and a fifth arc plate 115 which are sequentially bonded and fixed, and the wood grain directions between any two adjacent arc plates 11 are different.
[0036] The first curved plate 111 , the second curved plate 112 , the third curved plate 113 , the fourth curved plate 114 and the fifth curved plate 115 have the same curvature and are fitted to each other and fixed by bonding.
[0037] Since the wood grain directions between two adjacent arc-shaped plates 11 are different, when the backboard body 1 is subjected to stress, the stress is prevented from being concentrated at a certain position of the backboard body 1, and the panel 2 body is prevented from being broken due to stress concentration. The backboard body 1 of this structure improves the structural strength, and the backboard body 1 is not easy to deform or break.
[0038] As an alternative embodiment, see Figure 2 As shown, the wood grain direction of the first curved plate 111 and the fifth curved plate 115 is arranged along the length direction of the back plate body 1, and the wood grain direction of the second curved plate 112 is arranged along the width direction of the back plate body 1; among the third curved plate 113, the fourth curved plate 114, and the fifth curved plate 115, the angle between the wood grain directions of any two is an acute angle.
[0039] The back plate body 1 of the above structure prevents stress concentration between two adjacent layers of the curved plates 11 by reasonably arranging the positions of the corresponding curved plates 11 .
[0040] The above-mentioned “wood texture” refers to the texture corresponding to the wood rings.
[0041] As an optional embodiment, the thickness of the arc-shaped plate 11 is 0.2 mm-1 mm. Preferably, the thickness of the arc-shaped plate 11 is 0.5 mm.
[0042] The beamless sound-focusing curved back panel of this embodiment is made of 5 layers of 0.5 mm thick curved plates 11 (first curved plate 111, second curved plate 112, third curved plate 113, fourth curved plate 114 and fifth curved plate 115) in a mold environment of high temperature and high pressure glue bonding.
[0043] Embodiment 2:
[0044] See also Figure 4 As shown, this embodiment provides a resonance box, including side panels 3, a panel 2 with sound holes 21 and the above-mentioned beamless sound-focusing arc back panel, and the side panels 3, the panel 2 and the back panel body 1 surround a resonance cavity.
[0045] The resonance box of this embodiment has the above-mentioned beam-free sound-focusing arc back plate, which facilitates the sound in the resonance box to be focused and transmitted from the sound hole 21, thereby achieving better sound focusing and resonance effects of the plucked instrument.
[0046] As an alternative embodiment, see Figure 4As shown, the resonance box further includes a lining strip 4 , which is fixed to the outer edge of the back panel body 1 , and the side panels 3 are fixed to the lining strip 4 and sealed to the back panel body 1 .
[0047] The lining strip 4 adheres and fixes the side panels 3 and the back panel body 1, thereby improving the stability of the structure.
[0048] As an alternative embodiment, see Figure 4 As shown, the resonance box also includes an upper end wood 51 and a lower end wood 52 , which are respectively fixed to the upper and lower parts of the side panels 3 , and the panel 2 is fixed to the upper end wood 51 and the lower end wood 52 and is sealed to the side panels 3 .
[0049] The upper end wood 51 and the lower end wood 52 have a planar structure, and the panel 2 is bonded to the planar structure, thereby achieving the fixation of the panel 2 and the side panel 3, and improving the stability of the structure.
[0050] See also Figure 1 and Figure 4 As shown, the back panel body 1, the side panel 3 and the panel 2 surround a resonance box, and the concave side of the back panel body 1 is arranged toward the panel 2. The focus of the arc plate 11 is located in the sound hole 21, which is convenient for focusing the sound and facilitating the sound in the resonance box to be focused and transmitted from the sound hole 21, so that the sound focusing and resonance effects of the plucked instrument are better.
[0051] In addition, the back panel body 1 of the resonance box has different wood grain directions between two adjacent arc-shaped panels 11. When the back panel body 1 is subjected to stress, the stress is prevented from being concentrated at a certain position of the back panel body 1, and the panel 2 is prevented from being broken due to stress concentration. The back panel body 1 of this structure improves the structural strength, and the back panel body 1 is not easy to deform or break.
[0052] Embodiment 3:
[0053] This embodiment provides a plucked string instrument, including a panel with sound holes and the above-mentioned resonance box.
[0054] The plucked string instrument may be a guitar, a ukulele, or the like.
[0055] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0057] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A sound-gathering arc backboard without a sound beam, characterized in that: It includes a back plate body, the back plate body includes arc plates, the number of the arc plates is more than two layers, the curvature of all the arc plates is the same, and the adjacent arc plates are fitted and fixed; The concave side of the arc plate is arranged toward the panel, and the focus of the arc plate is located in the sound hole.
2. The sound-gathering curved backboard without sound beams according to claim 1 is characterized in that: The wood grain directions of adjacent curved plates are inconsistent.
3. The sound-gathering curved backboard without sound beam according to claim 1, characterized in that: The arc-shaped plates include a first arc-shaped plate, a second arc-shaped plate, a third arc-shaped plate, a fourth arc-shaped plate and a fifth arc-shaped plate which are bonded and fixed in sequence, and the wood grain directions between any two adjacent arc-shaped plates are different.
4. The sound-gathering curved backboard without sound beams according to claim 3 is characterized in that: The wood grain direction of the first curved plate and the fifth curved plate is arranged along the length direction of the back plate body, and the wood grain direction of the second curved plate is arranged along the width direction of the back plate body; The angle between the wood grain directions of any two of the third curved plate, the fourth curved plate, and the fifth curved plate is an acute angle.
5. The sound-gathering curved backboard without sound beams according to claim 1, characterized in that: The thickness of the arc plate is 0.2mm-1mm.
6. A resonance box, characterized in that: It comprises side panels, a panel with sound holes and a beamless sound-focusing arc back panel as described in any one of claims 1 to 5, wherein the side panels, the panel and the back panel body enclose a resonance cavity.
7. The resonance box according to claim 6, characterized in that: The resonance box also includes a lining strip, which is fixed to the outer edge of the back plate body. The side plates are fixed to the lining strip and are sealed and connected to the back plate body.
8. The resonance box according to claim 6, characterized in that: The resonance box also includes an upper end wood and a lower end wood, wherein the upper end wood and the lower end wood are respectively fixed to the upper part and the lower part of the side plate, and the panel is fixed to the upper end wood and the lower end wood and is sealed and connected to the side plate.
9. A plucked string instrument, characterized in that: The invention comprises a panel with sound holes and a resonance box as claimed in any one of claims 6 to 8.