String Instrument Detuning Mechanism with Independent Pivoting
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Solution Overview
Problem
Existing tuning devices for stringed instruments, such as vibratos, require multiple iterations to tune and are sensitive to string failures, causing all strings to lose their tuning when one string breaks.
Innovation Solution
A tuning device with a limiting element and string clamping device mounted on a common axis of rotation, allowing independent movement while preventing relative displacement, and featuring a stop mechanism to maintain string tension stability and enable precise pitch adjustment of individual strings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vibrato is suspended with all strings acting on a common pivot point, then the device allows pitch change of individual strings, but changing the tension of one string affects the tuning of other strings
Solution Approach 1:
The patent divides the common pivot system into separate pivot points: one pivot for the limiting element and another pivot for the string clamping device. This segmentation isolates the mechanical influence of each string, so that adjusting one string's tension no longer affects the positioning or tension of other strings, resolving the tuning stability issue while preserving pitch change capability.
2Ease of operation
If the vibrato system allows free pivoting around a knife edge, then the device enables tension adjustment, but the system becomes sensitive to string failures causing complete tuning loss
Solution Approach 1:
By separating the pivot mechanisms for the limiting element and string clamping device, the patent creates independent mechanical systems for each string. This means that if one string fails or breaks, the failure is contained to that single string's mechanism and does not propagate to affect other strings' tuning, thus improving reliability while maintaining ease of operation.
3Adaptability or versatility
If multiple iterations are required to tune the instrument, then the device allows comprehensive tension control, but the tuning process becomes time-consuming
Solution Approach 1:
The patent's separate pivot system allows each string to be tuned independently without requiring repeated adjustments of multiple strings. The independent mechanical isolation means that tension changes on one string do not create cascading effects on other strings, significantly reducing the number of tuning iterations needed while preserving comprehensive tension control capability.
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
Enables easy and precise tuning of individual strings without affecting others, preventing tuning disruption from string failures and allowing for a wide range of pitch adjustments and musical moods.
Implementation Method 1
The preload element can be attached to the tuning mechanism or to the stringed instrument using an adjusting screw. The preload of the preload element can be adjusted via this screw.
Data Source
Figure 1~2A
Figure 2B~2C
Figure 3~4
AI summary
The invention relates to a detuning device (1) for a string instrument (5) and to a string instrument (5). The detuning device (1) comprises a boundary element (20) and a string clamping device (30). The boundary element (20) and the string clamping device (30) are pivotably mounted independently from each other, in particular on a common axis of rotation (40).