String Instrument With Internal Auxiliary Strings for Vibrant Resonance
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Solution Overview
Problem
Acoustic string instruments generate sound that feels weak due to reliance on external resonance, lacking a vibrant amplification method.
Innovation Solution
Incorporation of auxiliary strings inside the main body of the instrument, with features like through-holes, support members, and muting mechanisms to enhance resonance amplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If acoustic guitar uses only external string resonance, then the structure remains simple, but the sound output feels weak and lacks vibrancy
Solution Approach 1:
The patent implements nested resonance by placing auxiliary strings inside the main body cavity, where internal auxiliary strings resonate within the external string resonance system. This creates multiple resonance layers (external strings → body cavity → internal auxiliary strings) that amplify sound output while maintaining a relatively compact structure, directly addressing the weakness of insufficient sound power in traditional acoustic instruments.
Solution Approach 2:
The patent transitions from two-dimensional external resonance (strings on the body surface) to three-dimensional internal resonance by positioning auxiliary strings within the body cavity. This spatial dimensionality change allows resonance to occur throughout the internal volume of the instrument, significantly enhancing sound output strength and vibrancy without proportionally increasing external structural complexity.
2Power
If auxiliary strings are added inside the main body, then resonance amplification is enhanced, but the device complexity increases
Solution Approach 1:
The patent designs the auxiliary string system to serve multiple functions: primary resonance amplification, tonal color enhancement, and selective muting capability. The same auxiliary strings that amplify resonance can be muted by the bar to create different sound effects, making the added components multi-functional and justifying the increased complexity through enhanced versatility.
Solution Approach 2:
The patent introduces dynamic control through the muting bar that can selectively contact auxiliary strings during playback. This dynamic element allows the resonance amplification system to be activated or deactivated in real-time, providing adaptive sound control that optimizes the benefit-to-complexity ratio by enabling resonance enhancement only when needed.
3Adaptability or versatility
If muting mechanism is added for auxiliary strings, then sound control versatility is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the muting function as a separate, dedicated mechanism (the bar that can contact auxiliary strings) rather than integrating it into existing components. This extraction allows for independent optimization of the muting mechanism and provides clear functional separation, making the added complexity manageable and the control versatility easily accessible to the user.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sound generated by the instrument becomes more vibrant as auxiliary strings vibrate in response to the primary strings, allowing for adjustable and enhanced sound output.
Implementation Method 1
an auxiliary string (40) inserted into the main body (10) through the through-hole (14) is provided inside the main body (10)... when the user strums the strings (30), the strings (30) vibrate and generate sound, and here, as the body vibrates and amplifies the sound
Data Source
AI summary
The present invention relates to a string instrument having a new structure that can amplify resonance using an analog method. In the string instrument according to the present invention, since auxiliary strings are provided inside a main body, when a user strums strings to play the string instrument, sound generated by the strings is amplified as the auxiliary strings vibrate due to vibration of the strings. Therefore, there is an advantage in that the sound generated when playing the string instrument becomes more vibrant.