Fluid-Adjustable Mounting Interface for Stable Wearable Fit
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Solution Overview
Problem
Wearable electronic devices face challenges in achieving stable and comfortable mounting due to inconsistent pressing forces, leading to discomfort and instability, particularly in devices like headphones and wristwatches.
Innovation Solution
A tactile sense presentation apparatus with a deformable mounting portion, a pump unit, and a control unit that adjusts fluid pressure to optimize the shape, hardness, and contact state with the user's body, incorporating sensors for real-time feedback to maintain optimal mounting pressure and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed pressing force is applied to the mounting portion, then stable mounting is achieved, but discomfort occurs during long-term wear
Solution Approach 1:
The patent applies dynamics by making the pressing force adjustable rather than fixed. The pump unit dynamically changes the internal pressure of the mounting portion based on detection signals, allowing the pressing force to adapt over time. This resolves the contradiction by enabling stable mounting when needed while reducing pressure to prevent discomfort during extended wear.
Solution Approach 2:
The patent changes the pressure parameter of the mounting portion from a constant value to a variable value. By controlling the pump unit to adjust internal pressure based on detection signals (such as pressure sensors or motion sensors), the system can modify the pressing force parameter in real-time, thereby achieving both stability and comfort.
2Reliability
If a high pressing force is applied to the mounting portion, then mounting stability is improved, but discomfort and instability increase
Solution Approach 1:
The patent implements feedback control where detection signals (from pressure sensors, motion sensors, or other sensors) are fed back to the control unit. The control unit processes these signals and adjusts the pump unit's operation accordingly, creating a closed-loop system that automatically optimizes pressing force to balance stability and comfort.
Solution Approach 2:
The system performs self-adjustment based on detection signals without requiring manual intervention. The control unit autonomously controls the pump unit to maintain optimal pressing force, allowing the mounting portion to self-regulate its pressure to achieve both stability and comfort.
3Reliability
If the mounting portion is made rigid for stable mounting, then positional deviation is prevented, but comfort and adaptability decrease
Solution Approach 1:
The patent makes the mounting portion dynamically adjustable in terms of rigidity. By controlling the internal pressure through the pump unit, the mounting portion can transition between more rigid states (for stability) and more flexible states (for comfort and adaptability), resolving the contradiction between rigid structure and adaptive comfort.
Solution Approach 2:
The mounting portion incorporates flexible materials that can deform under pressure control. The flexible structure allows the mounting portion to adapt to different body contours while maintaining stability when pressurized, combining the benefits of flexibility and rigidity through controlled deformation.
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 apparatus ensures stable and comfortable wearability by dynamically adjusting the mounting pressure and temperature, preventing positional deviation and improving sound insulation and noise canceling performance in headphones, while also being applicable to various electronic devices and accessories.
Implementation Method 1
The pump unit includes a flow path, which is connected to the mounting portion, and feeds a fluid for deforming the surface material to the mounting portion
Implementation Method 2
a surface material which is deformable in at least a part of a contact portion with the target object
Data Source
AI summary
Provided is a tactile sense presentation apparatus that includes a mounting portion, a pump unit, and a control unit. The mounting portion is mounted on a target object and includes a surface material which is deformable in at least a part of a contact portion with the target object. The pump unit includes a flow path, which is connected to the mounting portion, and feeds a fluid for deforming the surface material to the mounting portion. The control unit controls driving of the pump unit.