Sonic Channel and Skeletonized Bracing for Musical Instrument Soundboard
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Solution Overview
Problem
Conventional guitars face a trade-off between rigidity for sustained vibration and flexibility for producing audible volume, leading to conflicts in achieving optimal tone and sustain, while also being heavy and prone to structural damage.
Innovation Solution
A musical instrument design featuring a body with a sonic channel and skeletonized bracing, which allows for greater flexibility in strategic areas of the soundboard and back, optimizing tonal response by targeting specific regions and reducing overall mass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional guitars use solid bracing for structural strength, then structural integrity is improved, but flexibility and tonal response deteriorate
Solution Approach 1:
The patent applies skeletonized bracing which creates a porous or hollow structure within the braces themselves. This allows the braces to maintain structural strength while reducing mass and increasing flexibility, enabling the soundboard to vibrate more freely for improved tonal response
Solution Approach 2:
The patent combines different materials and structures - solid outer brace structures with hollow or porous internal sections, potentially combining different wood densities or materials. This composite approach allows simultaneous achievement of structural integrity and flexibility
2Strength
If conventional guitars use heavy materials for structural strength, then strength is improved, but mass increases leading to reduced sustain
Solution Approach 1:
The skeletonized bracing creates hollow or porous structures that significantly reduce the mass of the bracing system while maintaining adequate structural strength. This mass reduction allows the guitar body to vibrate more easily, improving sustain without sacrificing necessary structural support
Solution Approach 2:
The patent removes unnecessary material from the braces by creating hollow sections or removing internal wood, extracting only the essential structural framework. This reduces overall mass while preserving the strength needed to counteract string tension
3Duration of action of moving object
If conventional guitars use rigid construction for sustain, then vibration duration is improved, but tonal quality and volume deteriorate
Solution Approach 1:
The patent applies different structural qualities to different parts of the guitar - the skeletonized bracing provides localized flexibility in the soundboard areas where vibration is needed, while maintaining structural strength in critical support zones. This local differentiation allows simultaneous optimization of sustain and tonal quality
Solution Approach 2:
The patent changes the physical parameters of the bracing - transitioning from solid to hollow sections, altering density and flexibility characteristics. These parameter changes enable the structure to provide both the rigidity needed for sustain and the flexibility needed for tonal resonance
Data Source
AI summary
A musical instrument having a body defining a sound chamber for the musical instrument. The body has a soundboard, a back, and a lateral sidewall connecting the soundboard and the back. The soundboard includes multiple braces with at least one brace skeletonized, and a first sonic channel having a plurality of substantially polygonal-shaped sections and bounding the at least one skeletonized brace. The back includes multiple back braces with at least one back brace skeletonized, and a second sonic channel having a plurality of substantially polygonal-shaped sections and bounding the at least one skeletonized back brace. The musical instrument may be a guitar.