Locking String Tuner With Self-Disengaging Grip
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Solution Overview
Problem
Conventional locking string tuners are complex with many components and moving parts, making them difficult to load and secure strings, and they lack a simple mechanism for self-disengagement during string removal.
Innovation Solution
A simplified locking string tuner design featuring a string post and a moveable engagement member with a grip surface and relief surface, allowing for easy string loading and secure tensioning, and enabling self-disengagement for effortless string removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional locking string tuners use multiple components and moving parts to secure strings, then the string can be firmly held during tuning, but the device complexity increases and ease of operation decreases
Solution Approach 1:
The patent combines multiple functions into a single integrated body structure. The body houses both the string receiving chamber and the disengagement mechanism within one unified component, eliminating the need for separate housing, springs, and complex locking mechanisms found in conventional tuners. This merging reduces the number of parts while maintaining the ability to securely hold strings during tuning.
Solution Approach 2:
The body serves multiple functions simultaneously: it acts as the structural housing, the string guide, the locking mechanism housing, and the disengagement actuator. The single body structure performs what conventional tuners require multiple separate components to achieve, thereby reducing complexity while maintaining reliability.
2Reliability
If conventional locking string tuners use complex mechanisms to secure strings, then the string can be firmly held, but the ease of operation for loading and removing strings deteriorates
Solution Approach 1:
The tuner employs a self-actuating disengagement mechanism where string tension automatically triggers the release of the engagement member from the second position to the first position. When the string is removed or loosened, the engagement member spontaneously returns to its initial state without requiring manual manipulation of additional components, making operation simple and intuitive.
Solution Approach 2:
Instead of requiring manual activation to release the string lock, the design inverts the control logic: the presence of string tension itself triggers the locking action, and the absence or reduction of tension automatically triggers the unlocking action. This inversion simplifies operation by making the tuner respond automatically to the string's state.
3Reliability
If conventional locking string tuners use multiple moving parts for string removal, then the string can be securely held, but the ability to enable self-disengagement deteriorates
Solution Approach 1:
The engagement member automatically disengages from the locked position when string tension is removed or reduced. The body's geometry and the engagement member's movable connection create a system where the string's own tension state controls the locking and unlocking, achieving self-disengagement without additional actuators or complex mechanisms.
Solution Approach 2:
The engagement member is designed to be movable relative to the body, allowing it to dynamically transition between the first position (disengaged) and the second position (engaged). This dynamic capability enables the tuner to automatically adapt its state based on string tension, providing self-disengagement while maintaining secure holding during tuning.
Data Source
AI summary
A locking string tuner that is comprised of a string post and an engagement member that is moveably associated with the string post. The engagement member has an engagement side that includes a grip surface and a relief surface, and has a reeling side.