Portable Device Case Frictional Retention Assembly
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Solution Overview
Problem
Conventional cases for portable electronic devices, such as laptops, often use obtrusive and aesthetically displeasing securing means like straps, which fail to maintain the case secured in both closed and open positions effectively.
Innovation Solution
A portable device case featuring a tensional retention assembly with a tensional member, clips, and frictional components, where the frictional components have a higher coefficient of friction than the clips and tensional member, providing enhanced stability and resistance to sliding, and a hinged coupling between the keyboard and display case portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional securing means like straps are used, then the case can be closed, but the securing is obtrusive and aesthetically displeasing, and fails to maintain stability in both closed and open positions
Solution Approach 1:
The patent changes the friction parameter by using a frictional component with a coefficient of friction greater than 0.5, which is higher than the coefficients of the tensional member and clips. This parameter change enables the frictional component to provide sufficient retention force without requiring complex mechanical securing mechanisms like straps
Solution Approach 2:
The patent extracts and eliminates the need for conventional straps and complex securing mechanisms by replacing them with a simplified tensional retention assembly that uses friction-based retention. The frictional component is integrated directly into the case structure, removing the need for separate securing elements
2Strength
If frictional components with higher coefficient of friction are used, then resistance to sliding is enhanced, but the device complexity increases
Solution Approach 1:
The patent merges the frictional component directly with the case structure, integrating it into the existing design rather than adding it as a separate mechanism. The frictional component is positioned to work in conjunction with the tensional member and clips, combining multiple functions into a unified assembly that enhances retention without proportionally increasing complexity
Solution Approach 2:
The patent applies the high-friction material only at specific locations where retention is needed, rather than throughout the entire device. The frictional component is strategically positioned to contact the laptop surface, providing localized high-friction engagement that prevents sliding while maintaining simplicity in other areas
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 solution ensures a stable and secure positioning of the laptop in both closed and open positions, preventing side-to-side sliding and maintaining the device's orientation, while being visually appealing and unobtrusive.
Implementation Method 1
at least one frictional component coupled to at least a portion of the tensional retention assembly, the at least one frictional component having at least one coefficient of friction greater than the at least one coefficient of friction of the first clip, the at least one coefficient of friction of the second clip, and the at least one coefficient of friction of the tensional member
Data Source
AI summary
Systems and methods are involved with but are not limited to a portable device case including a frictional component coupled to a tensional retention assembly, the frictional component having a coefficient of friction greater than the coefficient of friction of a first clip, a second clip, and a tensional member of the tensional retention assembly. In addition to the foregoing, other aspects are described in the claims, drawings, and text forming a part of the present disclosure.