Push-Button Sound Attenuator for Instant Hearing Protection Switching
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Solution Overview
Problem
Conventional hearing protectors and amplified hearing devices struggle to provide instant adjustment between high and low sound attenuation levels, leading to potential hearing damage and missed important environmental sounds.
Innovation Solution
A sound attenuator with a push button actuator that allows for nearly instantaneous switching between high and low sound attenuation levels, using a spring biased reciprocating mechanism to move between open and closed positions, ensuring comfort and fit for various users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional hearing protectors are used to block excessive sound levels, then hearing protection is provided, but lower volume environmental sounds are also blocked
Solution Approach 1:
The hearing protector incorporates a dynamic adjustment mechanism that allows the user to switch between different attenuation levels. The device transitions from a static attenuation state to a dynamic state where the attenuation level can be changed in response to environmental conditions, enabling the user to hear important sounds while maintaining protection when needed.
Solution Approach 2:
The device changes the attenuation parameter by moving the earcup relative to the ear or adjusting the seal between the earcup and ear. This parameter change allows the system to transition between high attenuation mode (for hearing protection) and low attenuation mode (for hearing environmental sounds), resolving the contradiction between protection and awareness.
2Loss of information
If the user removes the hearing protector to hear lower volume sounds, then environmental sounds can be heard, but hearing damage can occur during the transition time
Solution Approach 1:
The hearing protector enables instantaneous dynamic switching between attenuation levels without requiring removal of the device. The quick-adjust mechanism allows transition from high to low attenuation in a fraction of a second, eliminating the dangerous transition period associated with removing and reapplying the protector.
Solution Approach 2:
The device provides self-adjustment capability that allows the user to quickly modify the attenuation level without taking the device off. The user can simply activate the quick-adjust mechanism to switch between protection modes, making the adjustment process as simple and fast as pressing a button or moving a slider.
3Adaptability or versatility
If repeated removals and insertions of hearing protectors occur, then adjustment between sound levels is achieved, but incorrect placement occurs over time
Solution Approach 1:
The hearing protector incorporates a dynamic adjustment mechanism that allows the user to switch between different attenuation levels without removing the device. The quick-adjust feature enables instantaneous transition between high and low attenuation modes, eliminating the need for repeated removal and insertion that leads to placement errors.
4Object-affected harmful factors
If hearing protectors provide high sound attenuation, then hearing protection is effective, but the user cannot hear warning sounds or alerts
Solution Approach 1:
The hearing protector enables dynamic switching between high attenuation mode (for hearing protection during loud operations) and low attenuation mode (for hearing warnings and alerts). The quick-adjust mechanism allows the user to respond to environmental changes by instantly modifying the attenuation level, ensuring both protection and awareness are maintained.
Solution Approach 2:
The device changes the attenuation parameter by moving the earcup or adjusting the seal, allowing transition between high attenuation (for protection) and low attenuation (for hearing warnings). This parameter adjustment enables the user to hear critical sounds while maintaining effective hearing protection when needed.
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
Enables quick adjustment of sound attenuation to allow important sounds to be heard while protecting hearing, with a delta of at least 15 decibels in the 1.5 kHz to 4 kHz range, maintaining effective hearing protection and communication.
Implementation Method 1
A spring biased reciprocating mechanism releasably engages the push button actuator to hold it in a down (closed) position
Data Source
AI summary
The sound attenuator has a hollow body formed of a base section and a top section. The body is generally triangular with curved walls and rounded points. The top section has an aperture in which is located an axially movable push button actuator having a sidewall with one or more openings therein. A spring biased reciprocating mechanism releasably engages the push button actuator to hold it in a closed position with the one or more openings located inside the body, an in an open position with the one or more openings located above the body. The sound attenuator has a sound attenuation of at least 15 decibels in the frequency range between 1.5 kHz and 4 kHz.