Motorized Head Strap Adjustment for Smart Glasses Fit
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Solution Overview
Problem
Existing head-mounted smart glasses require manual adjustment of the head strap to fit different head shapes, which is inconvenient and not intelligent.
Innovation Solution
A wearable device with a driving structure that includes a mounting cavity, slide cavity, and communicating ports, where a driving assembly and transmission parts adjust the straps to automatically change the wearable space's size, allowing for intelligent and convenient tightness adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a manual adjusting mechanism is provided to adjust the tightness of the head strap, then the wearable device can adapt to different head shapes, but the operation amount increases and it is not intelligent and convenient enough
Solution Approach 1:
The head strap adjustment system performs self-adjustment through a driving assembly that automatically moves the strap along the slide cavity based on detected head shape data, eliminating the need for manual operation by the user while maintaining adaptability to different head shapes
Solution Approach 2:
The system uses a sensor to detect the user's head shape and provides feedback to the control unit, which then controls the driving assembly to adjust the strap tightness accordingly, creating a closed-loop system that adapts automatically based on real-time measurements
2Adaptability or versatility
If a manual adjusting mechanism is provided to adjust the tightness of the head strap, then the wearable device can adapt to different head shapes, but the device is not intelligent enough
Solution Approach 1:
The patent replaces the traditional mechanical manual adjustment system with an automated system comprising a sensor for detecting head shape, a control unit for processing data, and a driving assembly with motorized components that automatically adjust the strap, thereby enhancing the intelligent capability of the wearable device
Solution Approach 2:
The system autonomously performs the adjustment function by detecting head shape parameters and automatically positioning the strap at the appropriate tightness level without requiring user intervention, thus improving the extent of automation while maintaining adaptability
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 device automatically adjusts the tightness of the wearable space, enhancing user convenience and comfort by synchronously moving the straps, preventing uneven stress and improving the wearing experience.
Implementation Method 1
an elastic part sleeved on the output shaft of the actuator, two ends of the elastic part being elastically abutted against the cam and the actuator respectively
Data Source
AI summary
A wearable device includes a main structure, two straps, a connecting piece and a driving structure. The two straps are respectively connected to two ends of the main structure; the connecting piece is provided with a mounting cavity, a slide cavity in communication with the mounting cavity, and two communicating ports, each of the two straps having one end thereof distal to the main structure movably passing through one of the communicating ports to extend into the slide cavity, and the main structure, the two straps and the connecting piece enclosing a wearable space: the driving assembly is provided in the mounting cavity, the two transmission parts being provided spaced apart in the slide cavity and in transmission connection with the driving assembly, each of the two transmission parts being in respective transmission connection with the two straps.