Arm Wrap Joint Adjustability for Variable Head Shapes
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Solution Overview
Problem
Head-mountable devices face challenges in securing comfortably and reliably to users with varying anatomical features and during different activities due to unique head shapes and sizes, and existing securement arms may not adapt effectively.
Innovation Solution
The securement arm of the head-mountable device includes a first and second portion connected by a joint, allowing the second portion to rotate relative to the first, with an electrical connector extending through the joint to maintain electrical connectivity, and features like a biasing member and notch for adjustability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If securement arms are designed with fixed dimensions and configuration, then the device structure is simple and easy to manufacture, but the device cannot adapt to users with varying anatomical features and different activities
Solution Approach 1:
The securement arm incorporates a rotatable joint between the first and second portions, allowing the arm to dynamically adjust its configuration. This enables the arm to adapt to different head shapes and activity requirements while maintaining a relatively simple overall structure when not in use.
Solution Approach 2:
The securement arm is divided into multiple portions (first portion, second portion) connected by a joint. This segmentation allows each portion to be optimized independently and enables the arm to conform to various anatomical features through rotational adjustment at the joint.
2Adaptability or versatility
If securement arms are made rigid for structural stability, then the device provides reliable securement, but the device cannot be adjusted to fit different head shapes and sizes
Solution Approach 1:
The joint introduces controlled flexibility to the securement arm, allowing it to adapt to different head anatomies while maintaining stability when positioned. The rotational capability enables the arm to achieve stable configurations tailored to each user's unique head shape.
Solution Approach 2:
The joint allows change in the angular parameter of the securement arm configuration. By rotating the second portion relative to the first, the arm can adjust its angle to match different head shapes while maintaining structural integrity through the rigid connection at the joint.
3Reliability
If electronic components are distributed throughout the securement arm for optimal performance, then the device functionality is improved, but the device weight increases and portability is reduced
Solution Approach 1:
Electronic components are selectively placed in specific portions of the securement arm where they are most needed for optimal functionality. This localized distribution ensures necessary device performance while minimizing overall weight compared to uniform distribution throughout the entire arm structure.
Data Source
AI summary
A head-mountable device can include a viewing frame and a securement arm extending from the viewing frame. The securement arm can include a first portion having a first electronic component and a second portion rotatably connected to the first portion. The second portion can include a second electronic component. The securement arm can also include an electrical connector extending through the joint and electrically connecting the first electronic component and the second electronic component.