Head-Mounted Device Lacing Assembly for Adjustable Fit
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Solution Overview
Problem
Head-mounted devices for VR and AR experiences often suffer from improper fit due to lack of adjustability, leading to discomfort from being either too loose or too tight.
Innovation Solution
A head-mounted device with a lacing assembly comprising adjustable first and second head bands, a tightness adjustment mechanism, and a force bearing assembly, allowing for customizable fit and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head-mounted device is designed with a fixed structure, then the device is simple in structure, but the device cannot be adjusted and may be excessively loose or tight for the user
Solution Approach 1:
The head band is designed with a lacing assembly that includes adjustable first and second head bands connected by a tightness adjustment mechanism. This dynamic structure allows the user to adjust the length and tightness of the head band according to their head size, transforming the fixed structure into an adjustable one that adapts to different users while maintaining reasonable structural complexity through modular design.
2Ease of operation
If the head-mounted device is made adjustable, then the fit can be customized, but the device becomes more complex
Solution Approach 1:
The lacing assembly is segmented into multiple independent components: first head band, second head band, tightness adjustment mechanism, and force bearing assembly. Each segment performs a specific function, allowing the adjustment mechanism to be operated independently without affecting the entire device structure. This segmentation simplifies the adjustment operation while distributing the complexity across modular components.
Solution Approach 2:
The tightness adjustment mechanism is designed to be user-operable without requiring external tools or assistance. The user can independently adjust the length and tightness of the head band by manipulating the adjustment mechanism, making the device self-adjusting and improving ease of operation while keeping the mechanism relatively simple through intuitive design.
3Adaptability or versatility
If the head band is made loose to accommodate larger heads, then it becomes comfortable to wear, but it cannot provide sufficient support
Solution Approach 1:
The force bearing assembly is strategically positioned at specific locations on the head band to provide localized support and force distribution. This allows the head band to maintain a loose overall structure for comfort and adaptability while having concentrated force-bearing points that ensure sufficient support capability. The local quality enhancement resolves the contradiction between looseness and support strength.
Data Source
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AI summary
Disclosed is a head-mounted device (100), relating to the technical field of intelligent devices. The head-mounted device (100) comprises a host shell (10), a tightness adjustment mechanism (40) and a strap assembly (20), wherein the strap assembly (20) comprises two headband main bodies (210, 220) and two headband covers (211, 221); the two headband main bodies (210, 220) are connected to two ends of the host shell (10) and two ends of the tightness adjustment mechanism (40); the two headband covers (211, 221) are engaged with the two headband main bodies (210, 220); and the distance between the end of each of the headband covers (211, 221) close to the tightness adjustment mechanism (40) and the end of the tightness adjustment mechanism (40) close to the headband cover (211, 221) is variable, and the variable distance is adjusted by means of the tightness adjustment mechanism (40). The tightness adjustment mechanism (40) cooperates with the two headband main bodies (210, 220), such that the phenomenon of the device being loose or over-tight when worn can be avoided.