Adjustable Ear Plug Valve Assembly for Attenuation Control
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Solution Overview
Problem
Conventional ear plugs have fixed configurations, are often ill-fitted, and require removal for sound attenuation adjustment, posing challenges for users with dexterity issues and maintenance.
Innovation Solution
An adjustably attenuating ear plug with a manually adjustable valve assembly and flexible body, featuring conformal vanes and a sound collecting surface, allowing for selective exposure to ambient environments without removal, facilitating secure fit, easy adjustment, and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional ear plugs use fixed configurations, then manufacturing is simple, but adaptability to different users and conditions is poor
Solution Approach 1:
The ear plug incorporates a movable valve assembly that can be adjusted by the user to change the degree of sound attenuation. This dynamic component allows the same device to adapt to different listening conditions and user preferences, transforming a static device into an adaptable one without requiring multiple different ear plugs
Solution Approach 2:
The ear plug serves multiple functions: it provides sound attenuation, allows selective sound exposure through the adjustable valve, and can be customized by different users through the same device. This multi-functionality increases adaptability while maintaining a single device design
2Ease of operation
If adjustable ear plugs use push buttons adjacent the ear, then attenuation can be adjusted, but the mechanism becomes complex and requires force that may cause the plug to further enter the canal undesirably
Solution Approach 1:
The valve assembly is extracted as a separate, removable component from the main ear plug body. This allows the adjustment mechanism to be simplified and placed outside the canal, eliminating the need for complex internal push-button mechanisms and reducing the risk of the plug entering the canal further during adjustment
Solution Approach 2:
The valve assembly acts as an intermediary between the user and the sound attenuation function. Instead of directly manipulating complex internal mechanisms, the user adjusts the external valve assembly, which then controls the sound flow, simplifying the operation while reducing complexity
3Productivity
If ear plugs require complete removal from the canal for attenuation adjustment, then the mechanism is simple, but loss of time occurs and dexterity issues are exacerbated
Solution Approach 1:
The adjustable valve assembly is pre-configured to allow attenuation adjustments without removal. The valve is positioned and designed in advance to be accessible from outside the canal, enabling users to make adjustments quickly without the time-consuming process of complete removal and reinsertion
Data Source
AI summary
An adjustably attenuating ear plug adapted for use in an ear canal, includes a flexible body, and a valve assembly further comprising a disk and knob translatable relative to the disk, wherein the knob defines at least one inlet, the disk alternately defines at least one shield and hole, and the inlet is alternatively aligned with the hole and shield to varying degrees, so as to selectively and variably expose the canal to the environment.