Adjustable Securement Arm for Head-Mounted Displays
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Solution Overview
Problem
Head-mountable optical devices face challenges in providing comfortable and reliable securement for users with varying head anatomies and engaging in different activities, as existing securement arms may not accommodate unique head shapes, sizes, and positions of anatomical features.
Innovation Solution
The design incorporates a securement arm with a proximal portion connected to a viewing frame and a distal portion attached via an extendable connector, allowing for adjustable length and angle to accommodate different users and activities, while an electrical cable ensures continuous connectivity between electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If securement arms are made fixed in length and configuration, then the device structure is simple, but it cannot accommodate users with different head anatomies or different activities
Solution Approach 1:
The securement arm is divided into multiple segments: a fixed portion attached to the viewing frame and an adjustable portion that can be extended or retracted relative to the fixed portion. This segmentation allows the arm to adapt to different head sizes and shapes while maintaining a relatively simple overall structure.
Solution Approach 2:
The securement arm transitions from a static fixed-length design to a dynamic adjustable-length design. The adjustable portion can be extended or retracted to accommodate different head anatomies, and this adjustment can be maintained in different positions to suit various activities such as lying down or standing.
2Adaptability or versatility
If securement arms are made adjustable for different users, then adaptability improves, but the device becomes more complex and harder to manufacture
Solution Approach 1:
By dividing the securement arm into fixed and adjustable portions that can be separately manufactured and then assembled, the manufacturing process becomes more manageable. Each portion can be produced using standard manufacturing techniques, and the connection between portions uses standardized interfaces.
Solution Approach 2:
The adjustable portion is designed with universal applicability to work with different head anatomies and activity requirements. The same adjustable mechanism serves multiple functions: length adjustment, angle adjustment, and position maintenance, reducing the need for multiple specialized components.
3Adaptability or versatility
If the securement arm is made extendable, then comfort and reliability for diverse users improve, but the electrical connectivity between components becomes more challenging
Solution Approach 1:
Flexible printed circuits or flexible cables are used to provide electrical connectivity between the fixed and adjustable portions of the securement arm. These flexible conductors can bend and extend with the adjustable portion while maintaining reliable electrical contact, solving the connectivity challenge posed by the extendable design.
Data Source
AI summary
A head-mountable electronic device can include a viewing frame and a securement arm extending from the viewing frame. The securement arm can include a proximal portion connected to the viewing frame with a first electronic component disposed within the proximal portion and a distal portion attached to the proximal portion with an extendable connector. The distal portion can include a second electronic component. An electrical cable can extend through the connector and electrically connect the first electronic component and the second electronic component.