HMD Bracket Buckle Mechanism for Stable Fit
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Solution Overview
Problem
Conventional head-mounted display devices, especially glasses-type models, face issues with temples providing insufficient clamping force during vigorous movements, leading to a risk of device fall, and long-term use causes deformation making it difficult to securely fit on the user's head.
Innovation Solution
A head-mounted display device design featuring pivotally connected brackets with buckles that limit the unfolding angle to prevent deformation and excessive pressure, allowing for adjustable headband modules and extension members for enhanced stability and convenience, enabling secure fitting without deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a headband module is connected to provide sufficient clamping force, then the device stability is improved, but the unfolding angles of the temples increase and deformation occurs over time
Solution Approach 1:
The patent changes the structural parameters of the temple by introducing a bracket mechanism with limited unfolding angles. The bracket includes a first section connected to the display and a second section connected to the temple, with a limiting component that restricts the unfolding angle between these sections. This parameter change allows the temple to maintain proper clamping force without excessive unfolding angles that would cause deformation over time.
2Adaptability or versatility
If the temples are allowed to unfold freely to accommodate headband module, then the device adaptability is improved, but the temples become deformed after long-term use
Solution Approach 1:
The patent introduces a dynamic bracket mechanism that can adapt its configuration. The bracket includes movable components that allow adjustment of the temple position and unfolding angle. The limiting component dynamically restricts the unfolding angle to prevent deformation while still allowing sufficient adjustment range to accommodate the headband module and different head sizes.
3Reliability
If the temples provide strong clamping force to prevent device fall, then the device reliability is improved, but the temples deform due to continuous excessive pressure
Solution Approach 1:
The patent optimizes the structural parameters of the temple-bracket assembly to achieve balanced force distribution. The bracket's limited unfolding angle configuration ensures that the temple exerts appropriate clamping force on the head without excessive pressure that would cause deformation. The first and second sections of the bracket are designed with specific geometric parameters that distribute the clamping force evenly, maintaining device security while preserving temple structural integrity.
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 design ensures stable fixation during vigorous movements and prevents deformation of the brackets, providing balanced weight distribution and adjustable fit for user comfort, while allowing for easy switching between headband and glasses modes for optimal usage.
Implementation Method 1
When the two buckles are buckled onto the two buckling parts, an unfolding angle of each of the two brackets is limited to be greater than a locked angle
Implementation Method 2
The two brackets are respectively pivotally connected to the opposite sides of the display. When the unfolding angle of each of the two brackets is greater than an unlocked angle, the two buckles are separated from the two buckling parts
Data Source
AI summary
A head-mounted display device includes a display, two brackets, two buckles, and a headband module. The display has two buckling parts respectively located on opposite sides of the display. The brackets are respectively pivotally connected to opposite sides of the display. The buckles are respectively pivotally connected to the brackets. When the buckles are buckled onto the buckling parts, an unfolding angle of each bracket is limited to be greater than a locked angle. When the unfolding angle of each bracket is greater than an unlocked angle, the buckles are separated from the buckling parts. The unlocked angle is greater than the locked angle. When the buckles are separated from the buckling parts, the unfolding angle of each bracket is smaller than the locked angle. Opposite sides of the headband module are respectively detachably assembled to an end of each bracket away from the display.