Arcuate Biasing Strap for Headset Fit
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Solution Overview
Problem
Traditional virtual and augmented reality headsets often have sub-optimal fitting processes, requiring complicated manual adjustments and being time-consuming, which can be difficult for some users to achieve a comfortable and immersive experience due to ill-fitting issues.
Innovation Solution
The use of adjustable strap assemblies with lateral strap members featuring arcuate biasing sections made of resilient materials that automatically adjust to fit various head sizes and shapes, providing a constant inward force to securely hold the headset in place without the need for extensive manual adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional headsets use manual adjustment mechanisms, then fitting precision can be improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The elastic band automatically adjusts to fit different head sizes and shapes without requiring manual intervention. The band self-regulates its tension and positioning, eliminating the need for complex manual adjustment mechanisms while maintaining precise fitting across various users.
Solution Approach 2:
The elastic band utilizes material elasticity to dynamically change its physical parameters (length, tension, curvature) in response to different head dimensions. This allows the same component to adapt to multiple fitting scenarios without requiring adjustable mechanisms.
2Manufacturing precision
If traditional headsets require multiple fitting attempts, then fitting precision can be improved, but loss of time increases
Solution Approach 1:
The elastic band performs automatic fitting without requiring repeated manual adjustments. Users simply place the headset on their head, and the band self-adjusts to the correct fit in a single action, eliminating the time-consuming trial-and-error process.
Solution Approach 2:
The elastic band is pre-configured with appropriate tension and curvature characteristics during manufacturing, allowing it to automatically conform to various head shapes immediately upon use, without requiring preliminary adjustments by the user.
3Ease of operation
If elastic bands are used for automatic adjustment, then ease of operation improves, but manufacturing precision may deteriorate
Solution Approach 1:
The elastic band is designed with specific material properties and geometric parameters (elastic modulus, cross-section, initial curvature, rest length) that enable it to maintain consistent fitting precision across different users. These parameters are carefully selected during manufacturing to ensure reliable performance.
Solution Approach 2:
The elastic band features non-uniform cross-sectional properties and varying curvature along its length, with different sections optimized for specific functions (e.g., higher stiffness in regions requiring structural support, greater elasticity in regions requiring conformability). This localized optimization maintains fitting precision while enabling easy operation.
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 users to easily and comfortably wear head-mounted displays across a range of head sizes and shapes, ensuring a snug and secure fit with minimal effort, enhancing immersion and usability.
Implementation Method 1
an arcuate biasing section that arcs from the proximal portion to the distal end, the arcuate biasing section including a resilient material
Data Source
AI summary
A strap assembly may include a lateral strap member configured to extend along a first side and a back of a user's head, the lateral strap member including (1) a proximal portion configured to be coupled to a head-mounted-display device, (2) a distal end disposed away from the proximal portion, and (3) an arcuate biasing section that arcs from the proximal portion to the distal end, the arcuate biasing section including a resilient material. The arcuate biasing section may peripherally surround at least a portion of a reduced region when the arcuate biasing section is in a relaxed state. Additionally, the arcuate biasing section may be tensioned and deflected outward by the user's head when the lateral strap member is worn with the head-mounted-display device by the user. Various other apparatuses, systems, and methods are also disclosed.