Closed-End Woodwind Instrument with Plastic Body and Tone Holes
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Solution Overview
Problem
Closed-end woodwind instruments, such as globular whistles, lack consistency and accuracy in manufacturing, making them unsuitable for educational settings due to material limitations and labor-intensive production processes, which hinders their adoption in music programs.
Innovation Solution
A closed-end woodwind instrument with a nearly circular body and internal cavity, featuring tone holes of varying sizes for optimal intonation and ergonomic design, made from plastic for consistency and durability, along with a specialized notation system for easy learning and playing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If clay or wood materials are used for manufacturing closed-end woodwind instruments, then the instruments can be made with traditional craftsmanship, but manufacturing consistency and production efficiency are poor
Solution Approach 1:
The patent changes the material parameter from traditional clay or wood to plastic, which enables consistent manufacturing of pitch and tone holes through molding processes. This material substitution resolves the contradiction by providing both manufacturing precision for accurate pitch and high productivity through efficient plastic molding production.
2Reliability
If clay materials are used for instrument manufacturing, then traditional craftsmanship can be maintained, but mass production becomes prohibitively expensive and time-consuming
Solution Approach 1:
The patent changes the material parameter from clay to plastic, which allows for standardized molding processes that ensure consistent intonation accuracy while enabling efficient mass production. The plastic material can be precisely molded with accurate tone hole dimensions, providing reliable intonation that is reproducible across large production volumes.
3Manufacturing precision
If wood materials are used for instrument manufacturing, then better accuracy than clay can be achieved, but labor-intensive processing increases cost and reduces production speed
Solution Approach 1:
The patent replaces the mechanical carving and shaping processes required for wood with injection molding or other plastic forming processes. This substitution maintains or improves tone hole accuracy through precise mold fabrication while dramatically reducing production time, as plastic instruments can be manufactured in minutes rather than hours or days of handwork.
4Device complexity
If traditional closed-end whistle designs are used, then simple construction is maintained, but pitch accuracy and tone quality are insufficient for educational purposes
Solution Approach 1:
The patent optimizes key geometric parameters including the internal cavity volume, windway dimensions, labium angle, and tone hole sizes and positions. These parameter adjustments maintain the simple closed-end whistle construction while achieving accurate pitch and good tone quality suitable for educational use, resolving the contradiction between simplicity and precision.
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
The instrument provides consistent pitch and tone quality, allowing for efficient learning and playing, particularly in educational settings, with a teaching method that accelerates musical development and sight-reading skills, making it accessible for students aged 8 and above.
Implementation Method 1
As air travels through the windway and exits through an open area called the window, the air approaches a labium edge and is split to simultaneously leave the instrument up the labium ramp into the open air, while the remaining air enter the internal cavity
Implementation Method 2
The inner cavity may be an altered circular shape to accommodate correct intonation in the ground tone (C′′′). The range of the instrument can play chromatically up to an octave
Data Source
AI summary
A closed end woodwind instrument is provided designed for use with an inventive teaching method, notation system, and repertory. The combined system is designed for teaching basics of music and to provide a simple, convenient and enjoyable instrument. The instrument is formed of a body, which defines an internal cavity. A mouthpiece has a windway that connects to the internal cavity. The windway allows a user to blow air through the mouthpiece into the cavity and through the instrument. A labium is positioned along the windway, such that it splits air flowing through the windway. A plurality of tone holes are in communication with the internal cavity to allow air to exit the cavity. Upon blocking or opening these tone holes, different tones can be produced by the instrument.