HMD Strap Assembly Wiring Channel and Mesh Layer
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Solution Overview
Problem
Conventional head-mounted display strap assemblies have aesthetically unpleasing depressions and compromised strength due to internal wiring channels, which affect the durability and user experience.
Innovation Solution
A flexible lining member with a head-contact layer, a mounting layer defining a wiring channel, and a mesh layer between the head-contact and mounting layers, where the mesh layer overlaps the wiring channel to house electronic cables and enhance strength without visible depressions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an internal channel is used to accommodate wiring in the strap assembly, then the wiring is protected and organized, but it creates visible depressions that are aesthetically unpleasing and compromises the structural strength
Solution Approach 1:
The patent extracts the wiring channel from the exterior surface of the strap assembly and relocates it to the interior, specifically within the foam padding layer. This allows the external surface to remain smooth and aesthetically pleasing while still providing protected wiring accommodation internally.
Solution Approach 2:
The wiring channel is nested within the foam padding layer, which itself is nested between the outer fabric layer and the inner comfort layer. This multi-layer nesting structure protects the wiring while maintaining the structural integrity and aesthetic appearance of the strap assembly.
2Reliability
If an internal channel is used to accommodate wiring, then the wiring is protected, but it creates visible depressions on the exterior portion
Solution Approach 1:
The wiring channel is extracted from the exterior surface and relocated to the interior foam padding layer, eliminating visible depressions on the exterior while maintaining wiring protection internally.
Solution Approach 2:
The foam padding layer acts as a flexible shell that contains the wiring channel internally, allowing the exterior fabric surface to remain smooth and aesthetically pleasing while providing protected wiring accommodation.
3Ease of manufacture
If the strap assembly uses a conventional single-layer structure with internal channel, then manufacturing is simple, but the overall thickness and weight increase
Solution Approach 1:
The strap assembly is segmented into multiple functional layers: outer fabric layer, foam padding layer with integrated wiring channel, mesh reinforcement layer, and inner comfort layer. This segmentation allows each layer to perform its specific function efficiently, minimizing overall thickness and weight while maintaining structural integrity.
Solution Approach 2:
The patent uses composite materials including foam padding, mesh fabric, and fabric layers combined in a multi-layer structure. This composite approach provides structural strength, wiring protection, and comfort while minimizing the overall thickness and weight of the strap assembly.
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
The solution provides a structurally strengthened, aesthetically pleasing strap assembly that minimizes thickness and weight, ensuring comfortable and secure headset mounting while maintaining immersion and enjoyment of virtual or augmented reality experiences.
Implementation Method 1
The mounting layer may include a thermoplastic polymer that is bonded to the mesh layer and to a mounting surface of the backing member
Data Source
AI summary
A head-mounted-display strap assembly may include a flexible lining member having (1) a head-contact layer positioned to abut a head portion of a user, (2) a mounting layer overlapping the head-contact layer, the mounting layer defining a wiring channel, and (3) a mesh layer disposed between the head-contact layer and the mounting layer such that a portion of the mesh layer overlaps the wiring channel. A method may include (1) attaching a head-contact layer for a head-mounted-display strap assembly to a mesh layer and (2) attaching a mounting layer to the mesh layer such that the mesh layer is disposed between the head-contact layer and the mounting layer the mounting layer defining a wiring channel, and a portion of the mesh layer overlapping the wiring channel. Various other head-mounted-display strap assemblies, head-mounted-display systems, and methods are also disclosed.