Pivotable Earmuff Housing for Selective Sound Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing earmuffs require users to remove them or bend them awkwardly to hear conversations or use telecommunications devices, leading to discomfort and exposure to noise.
Innovation Solution
A head-mounted earmuff device with pivotable earmuff bodies that can switch between closed and opened positions, allowing environmental sounds to be received without removing the earmuffs, and an adjustable headband for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the earmuff is lifted up and bent to expose one ear for conversation, then the user can hear the conversation, but the earmuff presses strongly against the user's head causing discomfort
Solution Approach 1:
The earmuff is divided into two independent ear cups that can be opened separately. Each ear cup can be opened to expose one ear while keeping the other ear covered, allowing the user to hear conversations without removing the entire earmuff and thus avoiding the discomfort of pressing against the head.
Solution Approach 2:
The ear cups are designed with movable joints connecting them to the headband, allowing dynamic adjustment between closed and opened positions. This enables the ear cups to transition smoothly between providing noise protection and allowing audio input, eliminating the need for awkward bending and reducing pressure discomfort.
2Ease of operation
If the whole earmuff is taken off to hear conversation or use telecommunications device, then the user can hear outside clearly, but the user is exposed to noise
Solution Approach 1:
The earmuff structure allows selective opening of individual ear cups while maintaining coverage of the other ear. This enables the user to hear conversations through one open ear cup while the other ear remains protected from noise, eliminating the need to remove the entire earmuff.
Solution Approach 2:
The earmuff design provides multiple functions simultaneously: noise protection for one ear and audio reception for the other ear. This multi-functionality allows the user to engage in conversations while maintaining overall noise protection, avoiding complete removal of the earmuff.
3Object-affected harmful factors
If the earmuff is designed to cover both ears completely for noise protection, then noise isolation is improved, but the user cannot hear environmental sounds
Solution Approach 1:
The ear cups are designed with movable joints allowing dynamic transition between closed and opened positions. When closed, both ears are protected from noise; when opened, environmental sounds can be heard. This dynamic capability resolves the contradiction between continuous noise protection and environmental sound perception.
Solution Approach 2:
The earmuff consists of two separable ear cups that can be independently opened or closed. This segmentation allows selective noise isolation for each ear while maintaining the option to hear environmental sounds by opening the appropriate ear cup, balancing noise protection with environmental awareness.
Data Source
AI summary
The invention discloses a head-mounted earmuff device comprising: two earmuff bodies and a headband body. Each earmuff body has an earpad portion and a housing portion. The earpad portion has an accommodating hole. The housing portion is pivotably connected to the earpad portion. The housing portion covers the outer side surface of the earpad portion to isolate environmental sounds. The housing portion is pivoted to leave away from the outer side surface of the earpad portion to allow reception of the environmental sounds. The headband body has a mounting member and two assembling portions, and a pivoting end of the assembling portion is pivotably connected to the earpad portion. A sliding end of the assembling portion is slidably connected to a mounting section of the mounting member, and a dimension of a head-mounted space is adjustable by sliding and fixing the two assembling portions with respect to the mounting member.