VR Glasses Headband Ratchet Locking for Secure Adjustment
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Solution Overview
Problem
Conventional adjustable headbands for VR glasses often collapse due to frequent tightening or loosening, leading to an inability to lock, making them inconvenient to use.
Innovation Solution
An adjustable headband design featuring a telescoping band with a drive portion and control portion, including transmission components, elastic components, and a ratchet mechanism, allowing for secure locking and flexible adjustment to fit different head shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a two-way adjusting knob is used to frequently tighten or loosen the telescoping band, then the headband can adapt to different head shapes, but the internal clamping structure collapses and loses locking ability
Solution Approach 1:
The patent transforms the static two-way adjusting knob into a dynamic system with two distinct operational modes: a locking mode for frequent adjustments that prevents internal structure collapse, and a release mode that allows free telescoping band movement. The elastic component enables the system to switch between these modes based on user input, resolving the contradiction between adaptability and reliability.
Solution Approach 2:
The adjusting mechanism is segmented into functionally distinct components: the control portion with locking and release functions, the drive portion with transmission components, and the telescoping band. This segmentation allows each component to specialize in its specific function, with the locking mechanism protecting the internal structure during frequent adjustments while the release mechanism enables adaptability when needed.
2Ease of operation
If the internal clamping structure is designed for frequent adjustments, then the headband can be easily adjusted, but the structure collapses and cannot lock in position
Solution Approach 1:
The system dynamically switches between a locked state that provides position stability and an unlocked state that provides ease of adjustment. The elastic component stores energy to maintain the locked state during normal use, while allowing temporary release for adjustments, thus resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The locking mechanism is pre-configured to automatically engage and protect the internal clamping structure before adjustments are made. The elastic component is pre-loaded to provide locking force, preventing structure collapse during frequent adjustments while maintaining ease of operation through the release function.
3Adaptability or versatility
If the telescoping band is made adjustable for different users, then the headband becomes versatile, but the internal structure becomes complex and prone to collapse
Solution Approach 1:
The complex adjusting mechanism is segmented into modular components: control portion, drive portion, and telescoping band with distinct functions. This modular segmentation manages device complexity by organizing components into manageable units, each with a specific role in the adjustment process.
Solution Approach 2:
The control portion serves multiple functions: locking the adjustment in place, releasing the lock for adjustments, and protecting the internal structure during frequent use. This multi-functionality reduces the need for separate components, managing overall device complexity while maintaining adaptability for different users.
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 headband maintains adjusted tightness and allows for easy extension and retraction of the telescoping band, ensuring secure fit and convenient use by enabling two operational modes: controlled adjustment and free movement.
Implementation Method 1
a first elastic component, configured to control a drive connection between the first transmission component and the control portion
Implementation Method 2
The internal gear is meshed with the first transmission gear. The pawl ring is fixed on the housing. The ratchet wheel is meshed with the pawl ring, to allow the rotating body to rotate in a single direction.
Data Source
AI summary
An adjustable headband for virtual reality glasses and virtual reality glasses are provided. The virtual reality glasses include a glasses body, a fixing headband and an adjustable headband. The adjustable headband includes a housing, a telescoping band, a drive portion, and a control portion. The drive portion includes a first transmission component, a first elastic component and a second transmission component. The control portion is configured to drive the first transmission component. The first transmission portion is configured to drive the second transmission component. The second transmission portion is configured to drive the telescoping band. The first elastic component is configured to control a drive connection between the first transmission component and the control portion.