Head Mounted Device Auxiliary Member Rotation Mechanism
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Solution Overview
Problem
Conventional head-mounted devices face difficulties in adjusting the position of auxiliary members, leading to cumbersome and inefficient securement and removal processes, as the existing mechanisms often require trial and error to achieve proper tightening and positioning.
Innovation Solution
A head-mounted device featuring a rotation unit with a biasing member to press against the user's head and a restricting member to maintain position, allowing for easy adjustment and secure mounting, utilizing a combination of torque hinges and a double torsion spring to provide sufficient tightening force while allowing for easy adjustment of the auxiliary member's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a belt or wire member is used as the holding member with an auxiliary member (belt or pad) to assist securement, then sufficient tightening force and stable securement are achieved, but the position of the auxiliary member becomes difficult to adjust requiring trial and error
Solution Approach 1:
The auxiliary member is designed to rotate about a rotation unit, transforming it from a fixed position structure to a dynamic adjustable one. This allows the auxiliary member to adapt its position to different head shapes while maintaining securement reliability.
Solution Approach 2:
The biasing member pre-applies a pressing force to the auxiliary member in the default position, preparing it for contact with the user's head before mounting. This preliminary action eliminates the need for trial-and-error adjustment during the mounting process.
2Force
If the auxiliary member is positioned to contact the front region of the user's head for better securement, then the tightening force is improved, but the structure becomes more complex requiring additional rotation and restriction mechanisms
Solution Approach 1:
The rotation unit combines multiple functions: it serves as the rotation axis, incorporates the biasing member for applying force, and includes the restricting member for position control. This merging of functions achieves the desired tightening force without proportionally increasing structural complexity.
Solution Approach 2:
The rotation unit is designed to perform multiple roles simultaneously: supporting rotation, providing biasing force, and restricting position. This multi-functionality allows the auxiliary member to contact the front region of the head effectively while keeping the overall structure compact and manageable.
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
Enables secure and easy adjustment of the auxiliary member, ensuring a stable and comfortable fit for various head shapes and sizes, reducing the complexity of mounting and removal processes.
Implementation Method 1
The rotation unit includes a biasing member configured to bias the auxiliary member in a direction of pressing the front region of the user's head
Implementation Method 2
The restricting member is configured to restrict the rotation at the rotation unit
Data Source
AI summary
A head mounted device mounted on a user's head includes a display unit that displays an image to the user, a holding member that holds the display unit to the user's head, and an auxiliary member, including a rotation unit, that assists the holding member by rotating about the rotation unit to contact a front of the user's head. The rotation unit includes a biasing member that biases the auxiliary member in a direction of pressing the front region of the user's head and a restricting member that restricts the rotation at the rotation unit.