Earpiece Retaining Piece Structure for Stable Low-Pressure Fit
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Solution Overview
Problem
In-ear earpieces can become uncomfortable due to pressure on the ear canal or pinna when worn for extended periods, leading to reduced wearing comfort during various activities.
Innovation Solution
A retaining piece for an earpiece featuring a tubular wall portion and a cantilevered portion that engages with the concha of the ear, providing stability and comfort by distributing pressure evenly and maintaining the earpiece in place without excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the in-ear earpiece is designed to provide sufficient retaining force to stay in place during activities, then the stability and retention are improved, but the pressure on the ear canal or pinna increases, reducing wearing comfort
Solution Approach 1:
The retaining piece is divided into distinct functional portions: a retainer portion that interfaces with the ear canal and a cantilevered portion that engages with the concha. This segmentation allows each portion to perform its specific function optimally - the retainer portion provides securing force while the cantilevered portion distributes pressure across the concha structure, preventing excessive pressure concentration on the ear canal or pinna.
Solution Approach 2:
The retention mechanism transitions from a single-point or linear contact approach to a three-dimensional engagement system. The cantilevered portion extends radially outward to engage the concha, creating a spatial distribution of contact points that encompasses multiple dimensions. This dimensional expansion allows the retaining force to be distributed across a larger volume and surface area of the ear structure, reducing pressure concentration.
2Reliability
If the earpiece is designed to remain stable during exercise and work, then the retention is improved, but the pressure distribution becomes uneven, creating pressure points that reduce comfort
Solution Approach 1:
Different portions of the retaining piece are designed with locally optimized properties: the retainer portion has a geometry tailored for secure engagement with the ear canal, while the cantilevered portion features a shape and flexibility designed to conform to and distribute pressure across the concha. The alignment features are strategically positioned at specific locations to ensure proper orientation and even pressure distribution, preventing pressure point formation while maintaining overall stability.
3Manufacturing precision
If the retaining piece uses alignment features to ensure proper orientation, then the positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The alignment features are integrated directly into the retainer portion and locking feature structure, merging the orientation function with the existing retention mechanism. Rather than adding separate alignment components, the design incorporates alignment keys, notches, or shaped features that are formed as part of the retainer portion itself, ensuring proper orientation while minimizing additional complexity.
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 retaining piece ensures comfortable and reliable wear of in-ear earpieces by minimizing pressure points and maintaining proper orientation, allowing for extended use during daily activities.
Implementation Method 1
a cantilevered portion coupled to the retainer portion and configured to engage with at least a part of an outer wall of a concha of a user's pinna
Data Source
AI summary
A retaining piece includes a retainer portion, a tubular wall portion, and a cantilevered portion. The tubular portion extends around a central axis that extends through the center of the retaining piece. The retaining piece also includes a locking feature that includes a first alignment feature arranged along the tubular wall portion in direction substantially parallel to the central axis.