Intonated Nut with Locking Mechanism for String Instruments
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Solution Overview
Problem
Fretted string instruments face tuning instability due to the lack of precise string length compensation at the nut, leading to discrepancies between open string and fretted note frequencies, and vibrato mechanisms often struggle to maintain string tension stability.
Innovation Solution
An intonated string nut with a locking mechanism that provides varying linear positions for each string nut fulcrum, combined with a string-locking mechanism to secure strings rigidly, ensuring optimal compensation and tension stability across the instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If string length compensation is only done at the bridge fulcrum point, then the technique is simple to implement, but the open string notes and fretted notes cannot be in ideal relative tune
Solution Approach 1:
The nut is divided into multiple independent adjustable fulcrum positions for different strings. Each string can have its own customized fulcrum location along the nut length, allowing individual intonation adjustment for each string rather than a single uniform compensation point.
Solution Approach 2:
The nut fulcrum positions are made adjustable rather than fixed. The mechanism allows the fulcrum location for each string to be dynamically positioned and secured, enabling precise intonation tuning during instrument setup and maintenance.
2Device complexity
If a uniform projection spans across the entire front of the string nut assembly, then the structure is simplified, but each string-nut fulcrum cannot have a varying linear position in relation to each individual string
Solution Approach 1:
Instead of a uniform projection for all strings, each string is provided with its own localized fulcrum position on the nut. This allows each string to have customized intonation compensation tailored to its specific requirements, with each fulcrum positioned at the optimal location for that individual string's tension and frequency characteristics.
3Device complexity
If strings are not rigidly secured at the nut, then the structure is simpler, but tuning stability deteriorates during vibrato usage
Solution Approach 1:
The locking mechanism is designed to preliminarily secure the string at the correct fulcrum position before playing begins. This preliminary securing action prevents string slippage and maintains tuning stability during vibrato and other playing techniques that vary string tension.
Data Source
AI summary
The present invention provides in combination, an intonated string nut and string-locking mechanism for a musical string instrument with a fingerboard where the combination intonated string nut and string-locking mechanism includes a string-nut fulcrum and a string-locking means, where each string-nut fulcrum may have a varying linear position in relation to each individual string in order to provide the optimum compensation amount for improving the consistency and production of in-tune musical notes during play for musical string instruments with fingerboards. Also disclosed are methods of use of various embodiments for the intonated string nut and string-locking mechanism.