Wearable Strap Adjusting Device with Cushion Sensor
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Solution Overview
Problem
Wearable devices, such as headsets and smart watches, require manual adjustment of straps, which is complex and affects user experience due to the need for increased tightening force using magic hooks.
Innovation Solution
A strap adjusting device with a pressing piece, a first sensor, and a tightness adjusting mechanism that detects deformation parameters of a cushion to automatically adjust the strap length, incorporating a processor to control the mechanism based on detected values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If manual adjustment with magic hook is used, then tightening force is increased, but operation complexity increases
Solution Approach 1:
The strap adjusting device automatically adjusts the strap length by detecting the deformation parameter of the cushion and controlling the tightness adjusting mechanism, eliminating the need for manual adjustment operations. The system serves itself by using the sensor to detect cushion compression and autonomously adjust the strap to the appropriate length.
Solution Approach 2:
The patent replaces the manual mechanical adjustment system (magic hook requiring manual tightening) with an automated electromechanical system consisting of a sensor, processor, and motor-driven tightness adjusting mechanism. This substitution eliminates complex manual operations while maintaining effective tightening force.
2Adaptability or versatility
If manual adjustment is required each time wearable device is worn, then strap length can be changed, but time consumption increases
Solution Approach 1:
The strap adjusting device performs preliminary action by automatically adjusting the strap length immediately when the wearable device is put on, detecting the cushion deformation and activating the tightness mechanism without requiring the user to spend time on manual adjustment. The system proactively handles the adjustment task before the user completes the wearing process.
Solution Approach 2:
The device adjusts itself automatically by detecting cushion deformation and controlling the motor mechanism to change strap length, eliminating the time-consuming manual adjustment process. The system performs the adaptation task autonomously, reducing the time loss associated with manual strap adjustment.
3Ease of operation
If automatic adjustment is implemented, then operation simplicity is improved, but device complexity increases
Solution Approach 1:
The patent introduces a cushion as an intermediary element between the user's head and the sensor. The cushion deforms under head pressure, and this deformation is detected by the sensor, which then triggers the adjustment mechanism. This intermediary approach simplifies the control logic while managing the overall system complexity through clear functional separation.
4Extent of automation
If sensor detects cushion deformation, then automatic control is enabled, but manufacturing complexity increases
Solution Approach 1:
The strap adjusting device is divided into distinct functional modules: the pressing piece with cushion, the sensor unit, the processor, and the motor-driven tightness adjusting mechanism. This segmentation allows each component to be manufactured and tested separately, then assembled into the complete system, managing manufacturing complexity through modular construction.
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
Simplifies the adjustment process by automatically adjusting strap length based on detected deformation parameters, enhancing user experience by reducing manual complexity and improving comfort.
Implementation Method 1
The first sensor is arranged on the pressing piece and configured to detect a deformation parameter value of the cushion
Data Source
AI summary
A strap adjusting device and a wearable device are provided. The strap adjusting device is configured for adjusting a length of a strap of the wearable device and includes a pressing piece including a supporting plate connected to the strap and a cushion arranged on the supporting plate; a first sensor arranged on the pressing piece and configured to detect a deformation parameter value of the cushion; and a tightness adjusting mechanism cooperating with the strap and configured to adjust the length of the strap in response to the deformation parameter value of the cushion.