Rotating Shaft Structure for VR Glasses with Cable Routing
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Solution Overview
Problem
Current VR or AR glasses face challenges in maintaining stable wearing, accommodating flexible flat cables, and preventing these components from interfering with the mechanism during operations like unfolding, expanding, and folding.
Innovation Solution
A rotating shaft structure for VR or AR glasses, comprising a first housing with a guide groove, a second housing, an annular frame, an elastic body, and a rotating shaft. This structure allows for relative rotation between the first and second housings, enabling the positioning post to move within the guide groove and selectively stop at retaining walls or a recess, facilitating comfortable wearing and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotating shaft structure provides sufficient threading space to accommodate flexible flat cables and wires, then the cables can be properly routed and protected, but the structure becomes more complex and the cables may still be exposed or interfere with the mechanism during rotation
Solution Approach 1:
The patent implements nesting by placing the flexible flat cables and wires inside the hollow interior space of the rotating shaft. The shaft structure contains multiple concentric layers where cables are routed through predetermined paths within the shaft body, protecting them from external interference while maintaining a compact design. This nested arrangement allows the cables to move with the shaft during rotation without being exposed to the external environment.
Solution Approach 2:
The patent introduces intermediary components such as cable guides, protective sleeves, and routing channels within the shaft structure. These intermediary elements mediate between the rotating shaft and the cables, ensuring smooth cable movement during rotation while preventing direct contact between cables and moving mechanical parts. The intermediary structures provide dedicated pathways that isolate cables from the rotational mechanism.
2Ease of operation
If the rotating shaft structure is designed for smooth rotation and folding operations, then the wearing and storage operations are facilitated, but the structure requires multiple damping designs and free-stop functions that increase complexity
Solution Approach 1:
The patent implements dynamics by incorporating damping mechanisms that adapt to different operational phases. The rotating shaft structure includes damping elements that provide controlled resistance during folding and unfolding operations, enabling smooth motion while automatically providing free-stop functionality at predetermined positions. The damping characteristics change dynamically based on the rotational position and operational state, eliminating the need for separate complex damping designs for different phases.
Solution Approach 2:
The patent merges multiple functions into a single integrated rotating shaft structure. The shaft combines rotation capability, folding mechanism, damping control, and free-stop functionality into one unified component. By integrating these functions rather than using separate mechanisms, the patent reduces overall structural complexity while maintaining smooth folding and unfolding operations with automatic positioning capabilities.
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 rotating shaft structure enables smooth operations such as unfolding, expanding, and folding of VR or AR glasses, ensuring practical and comfortable use while preventing flexible flat cables and wires from being exposed or interfering with the mechanism.
Implementation Method 1
an elastic body, two ends of which are respectively connected to the first housing and annular frame
Data Source
AI summary
The present invention discloses a rotating shaft structure for virtual reality (VR) or augmented reality (AR) glasses, and glasses. The rotating shaft structure includes a first housing, a second housing, an annular frame, an elastic body, and a rotating shaft. The first housing has a guide groove, and the guide groove includes two retaining walls and a recess located between the retaining walls. The second housing is relatively rotatably fitted with the first housing, and at least part of the second housing is located within the first housing. The annular frame is rotatably arranged in the first housing, is engaged with the second housing, and has a positioning post extending toward the guide groove. Two ends of the elastic body are respectively connected to the first housing and the annular frame. The rotating shaft extends through the first housing, the elastic body, and the annular frame.