Headphone Foldable Housing Arc Nesting Mechanism
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Solution Overview
Problem
Conventional headphones with multiple folding rotational shafts require complex folding operations, making them difficult for users to fold and store efficiently.
Innovation Solution
A headphone design featuring a headband with a pair of rotational shafts that connect housing support portions, allowing the housings to fold inside an arc formed by the headband and housing support portions without crossing each other, and including ear pads on the housings for improved sound quality and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple folding rotational shafts are provided to enable folding of the headphone, then the headphone becomes foldable and compact, but the folding operation becomes complicated and difficult to operate
Solution Approach 1:
The headphone structure is divided into three main segments: headband, housing support portions, and housings. Each segment can be independently folded relative to the others through rotational shafts, allowing the headphone to be compacted into a small volume while maintaining simple operation through clear sequential folding steps
Solution Approach 2:
The housing support portions are designed to rotate relative to the headband and housings to rotate, enabling dynamic adjustment between opened and folded states. This rotational mechanism provides smooth transitions and easy operation while achieving compact folded dimensions
2Volume of moving object
If multiple folding rotational shafts are provided to enable folding of the headphone, then the headphone becomes foldable, but the structural complexity increases
Solution Approach 1:
The folding structure is segmented into three distinct rotational joints: headband-housing support portion connection, housing support portion-housing connection, and housing-ear pad connection. This segmentation allows each joint to be optimized independently while maintaining overall structural simplicity and ease of manufacturing
Solution Approach 2:
The housings are positioned to nest within the arc formed by the headband and housing support portions when folded, with the left and right housings arranged side by side without crossing. This nested arrangement achieves compact folded volume while keeping the structural design straightforward and intuitive
Data Source
AI summary
A headphone includes: a headband; a pair of housing support portions, one and the other of which are provided at one and the other ends of the headband, respectively; a pair of rotational shafts, one and the other of which rotatably connect one and the other of the pair of housing support portions to the headband, respectively; a pair of housings, one and the other of which are provided on one and the other of the pair of housing support portions, respectively, wherein, in a folded state of the housing support portions as a result of a rotation, the pair of housings are disposed in positions contained within an area inside an arc formed by the headband and the housing support portions in an opened state of the housing support portions, and are located side by side without crossing each other; and a pair of ear pads.