Mobile Device Case Tension Elements Impact Absorption
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Solution Overview
Problem
Current mobile device cases lack internal kinetic energy deflection or absorption structures, often transferring impact forces directly to the device, which can cause damage, and are either bulky or lack sufficient energy absorption mechanisms.
Innovation Solution
A mobile device case with co-molded movable tension elements that extend into the interior, providing a resilient cushioning effect to absorb impact forces and space the device away from the case walls, thereby reducing the transfer of kinetic energy to the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the case walls are thickened or external energy absorption structures are added, then impact protection is improved, but the case becomes large and bulky
Solution Approach 1:
The patent embeds energy absorption elements (such as foam or gel inserts) within the internal cavity of the case, nesting protective functionality inside the existing case structure. This allows the case to maintain a compact external dimensions while providing sufficient impact protection through the internal energy-absorbing materials that deform during impact events.
2Volume of moving object
If the case is designed to conform tightly to the mobile device, then the case size is minimized, but impact forces are transferred directly to the device
Solution Approach 1:
The patent incorporates energy absorption elements and cushioning structures within the case that are pre-positioned to absorb impact forces before they reach the mobile device. These internal elements (such as foam inserts, gel layers, or spring mechanisms) are designed to deform or compress during impact events, dissipating kinetic energy and preventing direct force transfer to the device, thereby providing beforehand cushioning against harmful impact forces.
3Reliability
If internal energy absorption structures are added, then impact protection is improved, but the case complexity increases
Solution Approach 1:
The patent utilizes porous materials (such as foam or honeycomb structures) as energy absorption elements within the case. These porous materials provide effective kinetic energy absorption through their cellular structure that collapses and densifies during impact, dissipating energy efficiently. The porous nature of these materials allows them to provide substantial protection while maintaining relatively simple integration into the case design, avoiding overly complex mechanical systems.
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 case effectively absorbs impact forces, reducing the risk of damage to the mobile device by using movable tension elements that act as a spring-like mechanism to cushion the device during impacts, while maintaining a compact and non-bulky design.
Implementation Method 1
at least one resiliently movable tension element molded to a portion of the side wall portions
Data Source
AI summary
A housing sized to at least partially retain the mobile device, the housing defining an interior and a plurality of side wall portions substantially surrounding the interior; and at least one resiliently movable tension element molded to a portion of the side wall portions, the at least one resiliently movable tension element extending into the interior of the housing.