XR Headset Strap Pivot for Secure Fit
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Solution Overview
Problem
Conventional extended reality headsets provide a limited and uncomfortable fit for users with varying head shapes and facial structures due to their reliance on a single strap for securing the display structure, leading to discomfort and frustration.
Innovation Solution
The integration of an internal suspension system with a flexible strap rotationally coupled to the display structure via a pivot point, allowing for secure and comfortable fitting regardless of head shape, combined with additional stabilization from external straps, to distribute pressure uniformly and accommodate different facial geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single strap is used to secure the display structure, then the device complexity is reduced, but the adaptability to different head shapes and facial structures deteriorates
Solution Approach 1:
The securing mechanism is divided into multiple independent straps (first strap, second strap, third strap) that can be adjusted separately. Each strap targets different regions of the user's head and face, allowing independent adjustment to accommodate various head shapes and facial structures while maintaining overall system simplicity
Solution Approach 2:
The multiple straps are designed to work together as a unified securing system that universally accommodates different head shapes, facial bone structures, and sizes. The combination of straps creates a multi-functional securing mechanism that adapts to diverse user anatomies without requiring complex customization
2Stability of the object's composition
If the strap is tightened to adequately secure the display structure, then the stability of the display structure is improved, but the comfort for users with varying head shapes deteriorates
Solution Approach 1:
The securing force is distributed across multiple straps rather than concentrated on a single strap. This segmentation allows each strap to apply moderate, localized pressure to secure the display structure while preventing any single point from causing excessive discomfort to users with varying head shapes
Solution Approach 2:
Each strap is positioned to engage with different anatomical features of the user's head and face. The first strap engages the forehead, the second strap engages behind the ears, and the third strap provides additional support. This local distribution of securing points allows stable display structure positioning while adapting to local anatomical variations
3Ease of manufacture
If a single strap is used to secure the headset, then the ease of manufacture is improved, but the precision of fit to different facial structures deteriorates
Solution Approach 1:
The headset is manufactured with multiple pre-positioned strap attachment points distributed across different locations. This segmentation allows standard manufacturing processes to create a base structure that can accommodate various fit requirements through simple strap adjustment, without requiring complex precision manufacturing for each user
Solution Approach 2:
The straps incorporate adjustable mechanisms that allow dynamic reconfiguration of the securing system after manufacture. Users can adjust strap lengths and tension to achieve precise fit for their specific facial structure, transforming a statically manufactured product into a dynamically adaptable device
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
This solution provides a more comfortable and secure fit for a wider range of head shapes and sizes, enhancing user experience by maintaining proper display orientation and reducing discomfort and distortion.
Implementation Method 1
a flexible strap rotationally coupled to the display structure via a pivot point
Data Source
AI summary
An extended reality headset is configured to position and stabilize the headset on a face when worn. For example, the headset can include an external frame with first and second side pieces coupled to a display structure and configured to provide lateral stabilization. In some examples, the headset can include a front head-engaging structure front head-engaging structure that is rotationally coupled to the external frame via a pivot point. The headset can also include a rear head-engaging structure coupled the external frame. In some examples, the rear head-engaging structure can include a tensioning mechanism to adjust the headset to fit various head shapes. Additionally, the headset can include a flexible strap coupled to the front head-engaging structure and the tensioning mechanism. In some examples, applying tension to the flexible strap by the tensioning mechanism can cause the front head-engaging structure to rotate along the pivot point, providing a secure fit.