VR Strap Adjustment Mechanism for Automatic Tightening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current VR devices require manual adjustment of straps, making them inconvenient to wear quickly and leading to increased development costs and lack of standardization due to customized straps.
Innovation Solution
A VR strap adjustment mechanism with a first and second strap connected to the VR main body, a transmission component, driver, tightening trigger, pressure sensor, and PCB that automatically adjusts the strap tightness by synchronously tightening and loosening the straps based on trigger signals and pressure values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of straps is used, then the VR device can be worn, but the operation process is complex and time-consuming
Solution Approach 1:
The strap adjustment mechanism enables self-service automatic adjustment by using the user's own head shape to trigger the tightening process. The trigger component is activated when the user places the VR device on their head, automatically initiating strap tightening without requiring manual intervention, thus making the system serve itself rather than requiring external operation
Solution Approach 2:
The patent replaces the traditional mechanical manual adjustment system with an automated mechanism driven by a motor. The motor-driven reel winds the strap automatically based on head shape detection, substituting manual mechanical operation with an electromechanical system that reduces user effort and time
2Adaptability or versatility
If customized straps are used for each VR device, then the fit can be adjusted, but the development cost and complexity increase
Solution Approach 1:
The patent implements a universal strap adjustment mechanism that can adapt to different head shapes through a standardized motor-driven system. Instead of customizing straps for each device, a single universal mechanism with adjustable parameters (tightening force, speed, range) can serve multiple device models and user types, reducing development complexity while maintaining adaptability
Solution Approach 2:
The system achieves adaptability to different head shapes by changing operational parameters rather than physical strap characteristics. The motor control system adjusts tightening force, speed, and duration based on detected head shape parameters, allowing a single strap design to accommodate various users through parameter modification rather than physical customization
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 mechanism reduces user operation processes, ensures moderate tightness for all head shapes, and enhances convenience and standardization in VR device wear.
Implementation Method 1
obtaining, by the pressure sensor, a pressure value at a preset part
Data Source
AI summary
A method for adjusting a strap of a VR device is provided and includes a method for tightening the strap. The method for tightening the strap includes obtaining, by tightening trigger, a tightening trigger signal; controlling, by PCB, a driver to drive a transmission component according to the tightening trigger signal to drive first and second straps to be tightened synchronously; obtaining, by pressure sensor, a pressure value of a preset part; and when the pressure value reaches a first preset value, controlling, by PCB, the driver to stop driving the transmission component according to a first pressure sensor signal, such that first and second straps are synchronously tightened to an appropriate position. The method automatically adjusts the tightness of straps, reducing user's operation processes and making it convenient and faster for the user to wear the VR device. The method can ensure moderate tightness for all user head shapes.