Monolithic Head-Mounted Frame With Curved Cross-Sections
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Solution Overview
Problem
Existing head-mountable device frames are often complex and time-consuming to manufacture, with undesirable transitions between features, making it difficult to create frames that are both comfortable and aesthetically pleasing while supporting various cross-sectional profiles.
Innovation Solution
A frame body with a monolithic construction, curved to fit a user's face, featuring distinct cross-sectional profiles for the forehead, orbital, and bridge portions, with smooth transitions between them, allowing for ergonomic and aesthetically pleasing design, and utilizing specialized cutting tools to achieve this without multiple machining passes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional multi-step machining processes are used to create frames with different cross-sectional profiles, then manufacturing precision can be achieved, but manufacturing time and complexity increase significantly
Solution Approach 1:
The patent combines multiple machining operations into a single monolithic machining process. The frame body is machined as one integrated piece with varying cross-sectional profiles along its length, eliminating the need for separate machining steps for different sections. This merging of operations maintains precision while dramatically reducing manufacturing time and complexity.
Solution Approach 2:
The patent employs parameter changes by varying the cross-sectional profile parameters along the length of the frame body. The machining process adjusts cutting parameters dynamically to create different profile sections (forehead, orbital, bridge portions) in a continuous operation, achieving precision without multiple discrete steps.
2Shape
If complex machining processes are used to create smooth transitions between different cross-sectional profiles, then aesthetic appearance is improved, but manufacturing time and process complexity increase
Solution Approach 1:
The machining process merges the creation of multiple cross-sectional profiles and their transitions into a single continuous operation. The frame body is machined as an integrated structure where smooth transitions between forehead, orbital, and bridge portions are achieved in one process, reducing overall complexity despite the aesthetic requirements.
Solution Approach 2:
The patent utilizes curvature principles to create smooth transitions between different cross-sectional profiles. The frame body incorporates curved surfaces and gradual profile changes rather than sharp transitions, achieving aesthetic appearance while the monolithic machining process manages the complexity.
3Manufacturing precision
If multiple machining passes are used to create frames with varying cross-sectional profiles, then manufacturing precision is maintained, but manufacturing time and cost increase
Solution Approach 1:
The patent merges multiple machining passes into a single monolithic machining operation. The frame body is created in one continuous process that accommodates varying cross-sectional profiles throughout its length, maintaining precision while eliminating the time loss associated with multiple setup and machining cycles.
Solution Approach 2:
The machining process is designed to perform all necessary cutting operations in a predetermined sequence within a single setup. The tool paths are planned to address all profile variations in advance, eliminating the need for repeated positioning and machining passes, thus reducing time while preserving accuracy.
Data Source
AI summary
A frame can support components of a head-mountable device. The frame can include a frame body that is curved to fit a user's face. The frame body can include a forehead body portion, an orbital body portion, and a bridge body portion. Each body portion can have a cross-sectional profile that has an outer curvature. The outer curvature of each of the cross-sectional profiles can be difference. Further, the frame body can transition in profile between the different cross-sectional profiles.