Head-Mounted Display Floating Cushion Positioning
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Solution Overview
Problem
Existing head-mounted display devices often cause discomfort due to unsuitable headband and cushion designs that do not match individual head shapes, leading to instability and discomfort during use.
Innovation Solution
A head-mounted display device featuring a wearable assembly with adjustable cushions and positioning structures that allow for floating connection and interference-based positioning, enabling the device to be matched to different head shapes for improved stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed headband and cushion designs are used, then manufacturing is simple, but wearing comfort and stability deteriorate due to inability to match individual head shapes
Solution Approach 1:
The headband is divided into multiple segments including a first headband portion, second headband portion, and connection portion. The cushion is segmented into a first cushion portion and second cushion portion that can independently adjust. This segmentation allows each part to be positioned separately to match different head shapes while maintaining overall structural simplicity.
Solution Approach 2:
The connection portion between headband segments is designed with rotational capability, allowing dynamic adjustment of angles. The cushion portions can rotate relative to the headband portions around first and second rotation axes. This dynamic design enables the device to adapt to various head shapes without requiring complex replaceable components.
2Reliability
If adjustable positioning structures are added, then wearing stability improves, but device complexity increases
Solution Approach 1:
The positioning structures utilize rotational joints that allow the cushion portions to move relative to the headband portions. By rotating the first cushion portion around the first rotation axis and the second cushion portion around the second rotation axis, users can achieve stable positioning on different head shapes. This dynamic adjustment mechanism provides reliability without requiring complex locking or fastening systems.
Solution Approach 2:
The adjustable positioning system is designed to be manually operated by the user without requiring tools or complex mechanisms. The user can directly rotate the cushion portions to achieve proper positioning, making the system self-serviceable and avoiding the need for additional adjustment mechanisms that would increase complexity.
3Adaptability or versatility
If floating connection of cushion is implemented, then adaptability to head shapes improves, but structural stability may deteriorate
Solution Approach 1:
The floating connection is implemented through rotational joints that allow the cushion portions to move freely relative to the headband portions. The first cushion portion can rotate around the first rotation axis, and the second cushion portion can rotate around the second rotation axis. This dynamic connection provides adaptability while maintaining structural stability through defined rotational constraints rather than rigid fixed connections.
Data Source
AI summary
A head-mounted display device includes a wearable assembly, at least one cushion and at least one adjustable fixing assembly. The wearable assembly is adapted to be worn on a head of a user. The at least one cushion is floatingly connected to the wearable assembly and contact the head of the user. The at least one adjustable fixing assembly includes a first positioning structure and a second positioning structure. The first positioning structure is connected to the wearable assembly, and the second positioning structure is connected to the at least one cushion. A structural interference generated between the first positioning structure and the second positioning structure positions the at least one cushion to the wearable assembly.