Key Container Security Liner for Anti-Crack Attack Resistance
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Solution Overview
Problem
Existing key containers, particularly die cast and formed sheet metal ones, lack enhanced security features as they are either brittle and prone to cracking under physical attacks or limited in forming complex shapes, respectively.
Innovation Solution
A die cast key container with a stainless steel liner that is u-shaped and includes detents for secure positioning, providing additional toughness and protection by moving into a protected location within the container upon attack, while maintaining the advantages of complex shapes and low cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If die cast key containers are used, then complex shapes can be formed at low cost, but the containers are brittle and prone to cracking under physical attack
Solution Approach 1:
The patent combines a die cast outer shell with an inner liner made of a different material (metal, plastic, or rubber) to create a composite structure. The die cast portion provides complex shapes at low cost, while the inner liner material provides toughness and resistance to cracking under physical attack, thus resolving the contradiction between shape complexity and strength.
2Strength
If formed sheet metal key containers are used, then toughness and resistance to cracking are improved, but the containers cannot be formed into complex shapes
Solution Approach 1:
The key container is divided into two separate components: an outer shell formed by die casting that provides complex shapes, and an inner liner formed from sheet metal or other tough materials that provides toughness. This segmentation allows each component to be optimized for its specific function, resolving the contradiction between shape complexity and toughness.
3Strength
If a liner is added to the key container, then security and toughness are enhanced, but device complexity increases
Solution Approach 1:
The inner liner is nested within the outer shell of the key container, with the liner fitting inside the cavity of the shell. This nesting arrangement enhances security by providing an additional layer of protection without requiring separate mounting mechanisms or complex assembly procedures, thus minimizing the increase in device complexity.
Data Source
AI summary
A key containment apparatus includes a key container having a pocket and a liner positioned in the pocket of the key container, the liner being shaped to receive a key.