Conforming Ear Protector Anchor for Stress-Free Fit
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Solution Overview
Problem
Existing ear protectors, such as bistable truncated cone designs and elastic band designs, are uncomfortable, unsightly, and inefficient in providing uniform protection across a range of ear sizes due to clamping forces, fixed geometries, and stress concentration issues.
Innovation Solution
A conforming ear protector with a resiliently deformable anchor made from foamed elastomers, which conforms to the ear's geometry without clamping, providing a comfortable and secure fit without additional external support, and optionally includes features like flaps for enhanced protection and communication elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If bistable truncated cone designs are used to secure ear protectors without additional external support, then the ear protector can be maintained in position, but the design becomes uncomfortable and creates stress concentration issues
Solution Approach 1:
The patent employs a flexible anchor made from resilient material that can deform and conform to the ear's geometry. This flexible shell approach allows the anchor to securely engage the ear without creating stress concentration points, resolving the contradiction between position stability and comfort by distributing forces uniformly across the contact surfaces.
Solution Approach 2:
The patent utilizes material with resilient properties that can change their physical state between deformed and recovered configurations. This parameter change allows the anchor to adapt to different ear geometries while maintaining secure engagement, eliminating the need for clamping forces that cause stress concentration.
2Stability of the object's composition
If elastic band designs are used to maintain ear protectors without additional external support, then the ear protector can be secured, but the design becomes unsightly and creates discomfort
Solution Approach 1:
The flexible anchor design replaces visible elastic bands with a conforming resilient structure that secures the ear protector while remaining hidden or aesthetically pleasing. This flexible shell maintains position stability through geometric conformity rather than visible tensioning elements, resolving the contradiction between security and appearance.
3Ease of manufacture
If fixed geometry designs are used in ear protectors, then manufacturing is simplified, but the ear protector cannot provide uniform protection across a range of ear sizes
Solution Approach 1:
The patent employs resilient material that can undergo deformation to adapt to different ear geometries and sizes. This parameter change capability allows a single fixed-geometry anchor design to conform to variable ear shapes, simultaneously achieving manufacturing simplicity and broad adaptability across different users.
Solution Approach 2:
The resilient anchor exhibits different mechanical properties at different locations, with varying degrees of compliance and conformity capability. This local quality variation allows the anchor to maintain uniform protection across different ear sizes while retaining a simplified overall manufacturing process.
4Stability of the object's composition
If clamping forces are applied to secure ear protectors, then the ear protector can be maintained in position, but comfort is reduced
Solution Approach 1:
The resilient anchor utilizes material properties that allow reversible deformation without requiring clamping forces. The anchor can be deformed during insertion and then recovers to maintain secure engagement, achieving position stability through elastic recovery rather than continuous clamping, thereby eliminating discomfort.
Solution Approach 2:
The compliant resilient material inherently cushions the interface between the ear protector and the ear during engagement. This beforehand cushioning prevents the need for high clamping forces by absorbing and distributing insertion and engagement forces, maintaining both position stability and comfort.
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 conforming ear protector offers improved comfort, universal fit across various ear sizes, and enhanced protection against elements by distributing stress uniformly and maintaining a secure position without clamping, while also allowing for optional integration of communication and thermal elements.
Implementation Method 1
The perimeter of the conforming anchor's opening is configured to resiliently deform during passage of the external ear through the opening and into the chamber, and then to conform to the geometry of at least part of the ear root
Implementation Method 2
made from foamed elastomers, which conforms to the ear's geometry without clamping, providing a comfortable and secure fit by distributing stress uniformly
Implementation Method 3
The ear protector further comprises an insulating outer covering that, in combination with the anchor, forms the ear protector with a chamber or space positioned between the outer covering and the anchor
Data Source
AI summary
Methods and apparatus are provided for protecting the external ear from the elements, heat, cold, wind, rain and/or snow. In some embodiments, an ear protector comprises a conforming anchor with an opening through which the external ear may be passed. The ear protector further comprises an insulating outer covering that, in combination with the anchor, forms the ear protector with a chamber positioned between the outer covering and the anchor. During use, the chamber is configured to receive the external ear, with the anchor's opening conformably positioned in proximity to at least a portion of the ear's root. The perimeter of the conforming anchor's opening resiliently deforms during passage of the external ear through the opening and into the chamber, and then conforms to the geometry of at least a portion of the ear root in order to securely and comfortably maintain the ear protector in position over the external ear without additional external support. The conforming anchor preferably is fabricated from a closed cell foamed elastomer.