Adjusting Member for Sound Post Length and Timbre Control
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Solution Overview
Problem
The existing methods for adjusting the length and position of sound posts in string instruments are time-consuming, labor-intensive, and require complex external tools, making it difficult to achieve precise adjustments, especially when changes in timbre require adjustments to the sound post's tightness.
Innovation Solution
An adjusting member with a main body and rod-shaped adjusting arms that can be pivoted on a sound post, comprising a first and second post with hollow threads and fit parts, allowing for intuitive rotation to adjust the sound post's length and tightness without the need for external tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual cutting and gradual installation of sound post is used, then the sound post can be fitted to the curved top board and bottom board, but the process is time-consuming and labor-intensive
Solution Approach 1:
The sound post is pre-cut with curved ends matching the curvature of the top board and bottom board before installation. This preliminary shaping allows the sound post to be directly inserted into the f-hole and positioned correctly without requiring time-consuming manual cutting and adjustment during the installation process
Solution Approach 2:
The invention replaces the traditional manual cutting and gradual adjustment mechanical process with a pre-formed sound post design that can be directly installed. The curved ends are pre-shaped to match the sound box curvature, eliminating the need for iterative mechanical cutting and fitting operations
2Measurement precision
If external tools are used to adjust sound post length and position, then precise adjustment can be achieved, but the tool structure becomes complicated and operational difficulty increases
Solution Approach 1:
The sound post incorporates an integrated adjustment mechanism with a threaded rod and rotating element that allows the user to directly adjust the length and position of the sound post by hand. The adjustment mechanism is built into the sound post itself, eliminating the need for separate external adjustment tools and reducing operational complexity while maintaining precision
Solution Approach 2:
The invention merges the adjustment function into the sound post structure itself by integrating a threaded rod mechanism within the sound post. This allows the adjustment functionality to be combined with the sound post body, eliminating the need for separate external adjustment tools and simplifying the overall system
3Reliability
If the sound post tightness needs to be adjusted to change timbre, then sound quality can be optimized, but without a professional adjustment tool it causes inconvenience
Solution Approach 1:
The sound post includes a built-in threaded adjustment mechanism that allows the user to directly rotate and adjust the tightness of the sound post against the top board and bottom board. This self-contained adjustment system enables musicians to optimize sound quality and timbre by hand-adjusting the sound post position without requiring external tools or professional assistance
Solution Approach 2:
The sound post design incorporates a dynamic adjustment capability through the threaded rod mechanism, allowing the tightness and position of the sound post to be continuously varied during instrument use. This enables real-time optimization of sound quality and timbre by adjusting the sound post's contact pressure with the sound box boards
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 adjustment of sound post length and tightness, simplifying the installation process and allowing for real-time adjustments to timbre and resonance, enhancing the operational efficiency and sound quality of string instruments.
Implementation Method 1
The first post is provided with a first hollow thread and a first fit part. The screw post is pivoted on the first hollow thread. The second post is provided with a second hollow thread and a second fit part, and the second hollow thread is pivoted to the screw post.
Data Source
AI summary
An adjusting member is pivoted on a sound post to adjust a length of the sound post from the outside of the sound box of a musical instrument. The adjusting member comprises a main body and at least one adjusting arm arranged on the main body. Through the sound post provided with the adjusting member, a user can easily adjust the tightness of the sound post against the upper and lower plates of the sound box through a hole of the sound box, such as F sound hole, connected with the outside to achieve the effect of adjusting timbre of the musical instrument.