Elastic Hinge Structure for Adjustable Head-Mounted Display Fit
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Solution Overview
Problem
Current head-mounted displays often fail to accommodate a variety of head widths, leading to user discomfort due to being either too loose or too tight, necessitating an adjustable hinge mechanism.
Innovation Solution
A hinge mechanism comprising a first plate, a second plate, a third plate, a shaft, a first elastic element, and a second elastic element, allowing for rotational and linear movement to securely fit different head sizes, integrated into a head-mounted display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed hinge structure is used in head-mounted display, then the structure is simple and easy to manufacture, but it cannot accommodate different head widths leading to poor adaptability
Solution Approach 1:
The hinge structure is designed with dynamic characteristics, allowing the second plate to rotate relative to the first plate around a shaft. This rotational movement enables the head-mounted display to adapt to different head widths while maintaining a relatively simple overall structure. The elasticity element provides the necessary force for rotation and return, creating a dynamic adjustment mechanism.
Solution Approach 2:
The hinge is divided into multiple plates (first plate, second plate, third plate) connected through rotation and movement relationships. This segmentation allows each component to perform specific functions while collectively providing adaptability to different head widths without excessive overall complexity.
2Adaptability or versatility
If an adjustable hinge mechanism is added to accommodate different head widths, then adaptability improves, but the device complexity increases
Solution Approach 1:
The hinge structure is designed with dynamic characteristics, allowing the second plate to rotate relative to the first plate around a shaft. This rotational movement enables the head-mounted display to adapt to different head widths while maintaining a relatively simple overall structure. The elasticity element provides the necessary force for rotation and return, creating a dynamic adjustment mechanism.
Solution Approach 2:
The hinge is divided into multiple plates (first plate, second plate, third plate) connected through rotation and movement relationships. This segmentation allows each component to perform specific functions while collectively providing adaptability to different head widths without excessive overall complexity.
3Adaptability or versatility
If a rigid connection is used between plates, then the structure is stable and strong, but it cannot provide adjustment for different head sizes
Solution Approach 1:
The hinge structure is designed with dynamic characteristics, allowing the second plate to rotate relative to the first plate around a shaft. This rotational movement enables the head-mounted display to adapt to different head widths while maintaining a relatively simple overall structure. The elasticity element provides the necessary force for rotation and return, creating a dynamic adjustment mechanism.
Solution Approach 2:
The elasticity element automatically provides the force needed for rotation and return movement without external intervention. When the user adjusts the head-mounted display to fit their head, the elasticity element stores and releases energy to maintain the adjusted position, providing self-service stabilization.
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 adjustable hinge mechanism enhances user experience by allowing secure and comfortable fitting of head-mounted displays across a range of head widths, preventing discomfort caused by improper fit.
Implementation Method 1
The first elastic element surrounds the shaft. The second plate is rotatable around the shaft via the first elastic element.
Implementation Method 2
The second elastic element is connected to the second plate and the third plate. The second plate is movable relative to the third plate via the second elastic element.
Data Source
AI summary
A hinge is provided. The hinge includes a first plate, a second plate, a third plate, a shaft, a first elastic element, and a second elastic element. The second plate is connected to the first plate. The third plate is disposed on the second plate. The shaft is connected to the first plate and the second plate. The first elastic element surrounds the shaft. The second elastic element is connected to the second plate and the third plate. The second plate is rotatable around the shaft via the first elastic element. The second plate is movable relative to the third plate via the second elastic element.