Head-Mounted Display Support With Self-Locking Telescopic Arms
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Solution Overview
Problem
Conventional head mount display supports have complex locking structures that make it inconvenient for users to adjust and secure the device to their head, due to varying head shapes and sizes.
Innovation Solution
A head mount display support featuring telescopic arms with a knob shaft and adjustment gear, combined with a self-locking mechanism using an elastic member and locking member, allows for easy adjustment and secure locking of the arm positions, facilitating comfortable fitting across different head shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a locking structure is added to fix the head mount display support after adjustment, then the stability of the support is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The locking member is designed to automatically lock the telescopic arms at adjusted positions without requiring additional locking operations. When the telescopic arms reach a desired position, the locking member engages with the gear structure to maintain that position, making the system self-locking and eliminating complex manual locking mechanisms
Solution Approach 2:
The elastic member serves as an intermediary between the user's pressing action on the knob shaft and the locking mechanism. It transmits and amplifies the pressing force to move the locking member out of the way during adjustment, then automatically restores to engage the locking feature, simplifying the overall locking structure
2Stability of the object's composition
If a locking structure is added to fix the head mount display support after adjustment, then the stability of the support is improved, but the ease of operation deteriorates
Solution Approach 1:
The system performs the locking function automatically through the elastic member's restoration force after the user releases the pressing action on the knob shaft. This self-locking behavior eliminates the need for separate locking operations, greatly improving ease of operation while maintaining stability
Solution Approach 2:
The adjustment and locking functions are segmented into distinct phases: the pressing phase for adjustment where the locking member is disengaged, and the release phase where the elastic member automatically re-engages the locking member. This segmentation allows simple operation without compromising stability
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 solution simplifies the adjustment process and ensures a secure fit, enhancing user comfort and convenience by allowing easy size adjustment and self-locking of the telescopic arms, accommodating various head shapes and sizes effectively.
Implementation Method 1
an elastic member arranged in the accommodating cavity, wherein an end of the elastic member is connected on the rear housing; and a locking member arranged in the accommodating cavity and connected to another end of the elastic member; wherein, in response to the knob shaft moving away from the overlapping part, the adjustment gear is driven by the knob shaft to move away from the overlapping part, and the elastic member is configured to drive the locking member to bounce into the overlapping part to lock a relative position of the two telescopic arms
Data Source
AI summary
A head mount display support includes a support body including two telescopic arms overlapped with each other, a knob shaft configured to move into an overlapping part of the two telescopic arms when being pressed, an adjustment gear sleeved on the knob shaft to mesh with the two telescopic arms and drive the two telescopic arms to move towards or away from each other, a rear housing arranged on a side of the overlapping part away from the knob shaft, an elastic member with an end fixed to the rear housing and a locking member; another end of the elastic member is connected with the locking member; when the knob shaft retracting, the knob shaft drives the adjustment gear to move away from the overlapping part, the elastic member drives the locking member to bounce into the overlapping part to lock a relative position of the two telescopic arms.