Flip Tuning Levers for Guitar String Stress Reduction
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Solution Overview
Problem
Current guitar tuning devices that use screws can strip, leading to tuning issues and requiring rethreading or replacement, and they apply stress to strings, causing them to go out of tune.
Innovation Solution
A flip tuning levers device with vertical shafts, shims, and a horizontal shaft that locks guitar strings in place without screws, allowing for easy installation and removal without tools, accommodating various string thicknesses, and made from lightweight titanium for strength and ease of fabrication using 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw-related devices are used to lock guitar tuning, then the tuning can be locked, but the screws may strip or be damaged requiring rethreading or replacement
Solution Approach 1:
The patent removes screws entirely from the tuning locking mechanism, extracting the problematic threaded fastening element and replacing it with a lever-based system that uses friction and mechanical advantage instead of threaded engagement
Solution Approach 2:
The tuning device is divided into separate modular components including levers, posts, and locking mechanisms that can be independently replaced if damaged, eliminating the need to rethread screws and allowing individual part replacement
2Reliability
If screw-related devices are used to lock guitar tuning, then the tuning can be locked, but added stress is applied to guitar strings causing them to go out of tune
Solution Approach 1:
The patent introduces a lever arm as an intermediary mechanical element that provides mechanical advantage, allowing the locking force to be applied more efficiently without directly transmitting excessive stress to the strings
Solution Approach 2:
The design changes the force application parameters by using lever arms to distribute and optimize the locking force, reducing peak stress concentrations on the strings while maintaining effective tuning lock reliability
3Device complexity
If traditional tuning devices are used, then the structure is simple, but tools are required for installation and removal
Solution Approach 1:
The lever-based tuning device is designed to be installed and removed by hand without requiring external tools, allowing the user to manually manipulate the levers for both installation and removal operations
Data Source
AI summary
A flip tuning levers device that does not put added stress on a plurality of guitar strings to get them out of tune. The flip tuning levers device includes a plurality of levers, a plurality of vertical shafts, a plurality of shims, a horizontal shaft, and a base plate. The levers each include a handle, a rotating pin joint, and an upside-down cylindrical-shaped indentation. The base plate includes a plurality of apertures that include a first set of apertures that accommodate receiving a plurality of fasteners and a second set of apertures that accommodate receiving the distal ends of each of the vertical shafts, the first set of apertures correspond with a plurality of preexisting holes disposed on a headstock of the guitar. The flip tuning levers device is made from a three-dimensional printer for accuracy and cost-reduction or is made of titanium for strength and ease of fabrication.