Bridge-Mounted Chord Pressing for Accessible Stringed Instruments
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Solution Overview
Problem
Existing assistive technologies for stringed instruments automate the entire musical experience, eliminating user interaction and depriving individuals with disabilities of the physical and emotional experience of playing the instrument.
Innovation Solution
An automated chord-pressing apparatus that attaches to the bridge of a stringed instrument, using camshafts and servo motors to automate chord-playing while allowing user interaction through strumming, with accompanying software for remote updates and chord detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If comprehensive mechanization of the entire musical experience is implemented, then accessibility for individuals with disabilities is improved, but user interaction and physical experience of playing the instrument are eliminated
Solution Approach 1:
The invention divides the musical playing process into two separate functions: chord formation (automated via camshaft mechanism) and strumming (manual user interaction). This segmentation allows the device to assist individuals with disabilities in chord pressing while preserving their ability to actively participate in strumming, thus resolving the contradiction between accessibility and user interaction.
Solution Approach 2:
The device implements partial automation by automating only the chord-pressing function while leaving the strumming function to be performed manually by the user. This partial action approach provides assistance where needed (chord formation) while maintaining user engagement and physical experience through manual strumming.
2Ease of operation
If significant modifications to the instrument are made to enable assistive functionality, then accessibility is improved, but device complexity and portability are reduced
Solution Approach 1:
The camshaft-based mechanism is designed to be universally applicable to multiple types of stringed instruments. The device can attach to and function with different instruments without requiring significant modifications to each instrument, thereby reducing complexity while maintaining accessibility across various instrument types.
Solution Approach 2:
The invention introduces an intermediary device that bridges between the user and the instrument. This self-contained mechanism with its own power source and control system attaches to the instrument without requiring permanent modifications, thus providing accessibility while maintaining instrument integrity and reducing overall system complexity.
3Productivity
If automated chord-pressing mechanism is added to the instrument, then chord formation capability is improved, but device weight and compactness are reduced
Solution Approach 1:
The camshaft mechanism is designed to be lightweight and dynamically efficient, using rotational motion to achieve chord pressing without requiring heavy actuators for each string. The mechanical advantage of the camshaft design reduces the overall weight while maintaining effective chord formation capability.
Data Source
AI summary
An automated chord-pressing device that attaches to the bridge of an existing stringed instrument and employs a singular camshaft per fret for chord formation, and accompanying software to actuate it and automate chord-pressing while the user strums. The mechanical design is attachable to any existing stringed instrument, avoiding complexity and enhancing portability and ease of use for the end user. An alternative embodiment is disclosed that utilizes magnets to hold down specific strings. Both embodiments are portable and afford user with the opportunity to actively participate and engage in the musical experience, as opposed to passive participation offered by prior art systems, thereby preserving the therapeutic and recreational essence of music creation.