Neck Heel Flex Connection with Humidity-Compensating Rectification Element
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Solution Overview
Problem
Existing stringed instruments, particularly guitars with long necks, face challenges in maintaining neck alignment and fingerboard positioning due to deformations caused by varying atmospheric humidity, requiring manual adjustments through complex systems.
Innovation Solution
A flexible connection system using a wooden rectification element with longitudinal rings, coupled to the neck heel and fixing block via a rod, which automatically compensates for humidity-induced dilatations, featuring a screw-shaped push rod with a threaded connection to maintain neck alignment and prevent separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manually operable screws and adjustment systems are used to connect the neck heel to the fixing block, then the neck alignment can be adjusted, but the system requires frequent manual adjustments and becomes complex
Solution Approach 1:
The wooden rectification element automatically adjusts neck alignment by expanding or contracting in response to humidity changes, eliminating the need for manual adjustment operations. The element serves itself by using environmental humidity as the actuation mechanism to maintain proper neck positioning.
Solution Approach 2:
The rectification element changes its physical dimensions (expands or contracts) based on humidity parameter changes in the environment. This dimensional change directly compensates for neck deformation caused by humidity variations, maintaining alignment without mechanical adjustment systems.
2Manufacturing precision
If manually operable adjustment systems are used, then neck alignment can be corrected, but frequent manual adjustments are required due to humidity variations
Solution Approach 1:
The rectification element continuously and automatically maintains fingerboard positioning by responding to humidity changes in real-time, eliminating the time loss associated with periodic manual adjustments. The system self-regulates without requiring user intervention.
Solution Approach 2:
The wooden rectification element provides continuous adjustment action as humidity changes occur, rather than requiring discrete manual adjustments. The element maintains constant engagement with the neck heel, providing ongoing correction of positioning drift.
3Stability of the object's composition
If rigid connection of neck heel to fixing block is used, then structural stability is improved, but the connection cannot compensate for humidity-induced deformations
Solution Approach 1:
The connection system transitions from a static rigid connection to a dynamic adaptive connection. The wooden rectification element can change its dimensions dynamically in response to humidity conditions, allowing the connection to maintain stability while adapting to environmental changes.
Solution Approach 2:
The physical parameters of the rectification element (length, volume) change in response to humidity, enabling the connection to compensate for deformations. This parameter change allows the system to maintain both stability and adaptability simultaneously.
4Strength
If multiple structural components and spacers are added to enhance structural integrity, then neck alignment can be maintained, but the device complexity increases
Solution Approach 1:
The invention extracts and eliminates the need for multiple complex structural components, spacers, and reinforcement elements by using a single wooden rectification element that provides both structural support and humidity compensation functions through its material properties.
Solution Approach 2:
The wooden rectification element performs multiple functions simultaneously: it provides structural support, maintains neck alignment, and compensates for humidity-induced deformations. This multi-functionality replaces what would otherwise require multiple separate components.
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
This solution simplifies the adjustment process, ensuring automatic neck rectification and maintaining proper fingerboard alignment and string tension, reducing the need for manual adjustments and enhancing structural integrity.
Implementation Method 1
a wooden rectification element (11) with atmospheric humidity that is the cause of dilatation
Data Source
Figure 1
Figure 2
AI summary
Stringed instrument (1), especially the guitar with flexible connection of the upper part (3) of the heel (4) of the neck (2) below the fingerboard (5) to the fixing block (6) in the body of the instrument (1), whereby the lower free end of the heel (4) of the neck (2) is coupled to a fixing block (6) in the body of a stringed instrument (1) through the rod (10) via a rectification element (11) which dilates in reaction to atmospheric humidity changes.