Silicone Pad Structure for Wind Instrument Tone Holes

Solution Overview

Problem

Conventional pad structures in wind instruments harden over time, leading to gaps that cause incorrect sound production due to vibration leakage, which is not easily removable.

Innovation Solution

A pad structure featuring a circular silicone pad with a fixing pad and adhesive layers, including a cork reflector, which maintains elasticity and prevents hardening, ensuring consistent sound production and enhanced resonance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional pad structures made of leather and wool filling are used, then initial sealing performance is achieved, but the pad hardens over time creating gaps that cause incorrect sound

Engineering Contradiction:

Improvesealing performanceVSAvoidservice life

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material parameter from conventional leather and wool filling to silicone rubber, which fundamentally alters the physical and chemical properties of the pad. Silicone rubber maintains its elasticity and softness over time without hardening, thus preserving sealing performance throughout the service life of the instrument.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite structure consisting of silicone rubber pad, adhesive layer, and reflector. This composite material system combines the elasticity of silicone rubber with the bonding capability of adhesive and the acoustic reflection properties of the reflector, achieving both durability and acoustic performance.

Inventive Principle:

Principle #40Composite materials

2Manufacturing precision

If pads are made from traditional materials to ensure initial sealing, then correct sound is produced, but vibration leakage occurs after hardening

Engineering Contradiction:

Improvesealing accuracyVSAvoidsound quality consistency

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The patent changes the material parameter from conventional leather and wool filling to silicone rubber, which fundamentally alters the physical and chemical properties of the pad. Silicone rubber maintains its elasticity and softness over time without hardening, thus preserving sealing performance throughout the service life of the instrument.

Inventive Principle:

Principle #35Parameter changes

3Power

If conventional pad materials are used, then initial resonance is achieved, but tone quality deteriorates over time due to hardening

Engineering Contradiction:

Improveresonance effectVSAvoidtone quality duration

Core Design Contradiction:

PowerVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material parameter from conventional leather and wool filling to silicone rubber, which fundamentally alters the physical and chemical properties of the pad. Silicone rubber maintains its elasticity and softness over time without hardening, thus preserving sealing performance throughout the service life of the instrument.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The reflector serves as an intermediary element that enhances the resonance effect. Positioned between the pad and the key, it reflects vibrations back into the instrument body, amplifying the resonance and improving tone quality while the silicone rubber pad maintains consistent contact.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 silicone pad structure prevents hardening, maintains sound quality, and enhances the tone of wind instruments by maximizing resonance, providing a durable and effective sealing solution.

Implementation Method 1

an adhesive layer for bonding the fixing pad and the circular silicone pad

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

by vibrating the pad, the wind instrument resonates and produces sound

Methodology Applied

Scientific EffectVibration: Vibration

Implementation Method 3

a pad structure capable of enhancing the tone of a saxophone by maximizing the resonance effect caused by vibration

Methodology Applied

Scientific EffectResonance: Resonance

Data Source

PatentUS20250095613A1Key pad for wind instrument

Publication Date: 2025.03.20 KIM KWANG KI

AI summary

The present invention relates to a pad structure that can improve the tone of a wind instrument and does not deform even after long-term use. More specifically, the present invention relates to a pad for opening and closing a tone hole of a wind instrument by adhering to an upper main part of a tone hole tube, including: a circular silicone pad adhering to the upper main part; a fixing pad for fixing the circular silicone pad to an inner side of a key; a reflector positioned between the circular silicone pad and the fixed pad; and an adhesive layer for bonding the fixing pad and the circular silicone pad.