Shipping Container Access Shield Locking Arms
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Solution Overview
Problem
Existing security measures for shipping containers, such as padlocks and prior access bars, are vulnerable to defeat by burglary tools and unauthorized access, necessitating additional security to prevent theft during transit.
Innovation Solution
An access shield with an elongated flat base and protruding locking arms is positioned under the shipping container, with a door shield extending over the doors to block access, secured by the container's weight and feet, providing enhanced security against forced entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If padlocks are used to secure shipping container doors, then access is restricted, but they are easily defeated by burglary tools or unauthorized keys
Solution Approach 1:
The patent introduces an access shield as an intermediary barrier between the container doors and potential intruders. This shield, positioned within the container interior, acts as a mediator that prevents direct access to the doors even when padlocks are compromised, thereby resolving the vulnerability of padlock-based security systems
Solution Approach 2:
The invention transitions security from a two-dimensional padlock mechanism on the door surface to a three-dimensional shield structure extending into the container interior. This dimensional change creates a more complex security barrier that cannot be easily defeated by traditional lock-picking or key-based unauthorized access
2Reliability
If access bars are installed to prevent entry, then security is improved, but they require complex installation and may not adapt to different container configurations
Solution Approach 1:
The access shield is divided into multiple segments including a base portion, an upright portion, and a top portion that can be independently positioned and secured. This segmentation allows for simpler installation and adaptation to different container configurations, as each segment can be installed separately and adjusted to fit various door arrangements
Solution Approach 2:
The shield design incorporates universal features that allow it to be adapted to different container types and door configurations. The base portion can be positioned against various floor arrangements, and the upright portion can be adjusted to different heights, making the security device universally applicable across different shipping container specifications
3Reliability
If a door shield extends over the doors to block access, then security is enhanced, but the shield must be securely positioned without damaging the container
Solution Approach 1:
The base portion of the shield acts as an intermediary element that distributes the blocking force across multiple contact points with the container floor and door structure. This mediation prevents concentrated stress that could damage the container, while still maintaining effective door blocking through the upright and top portions
Solution Approach 2:
The base portion is designed to be positioned against the container floor and structural elements before the upright portion engages the doors. This preliminary positioning cushions and distributes the installation forces, preventing damage to the container structure while establishing a stable foundation for the door-blocking function
Data Source
AI summary
The present invention is for an access shield for a shipping container, which container has a pair of doors and a plurality of supporting feet. An access shield for the shipping container is placed under the door end of the shipping container and is contained by the shipping container's weight with a pair of locking arms positioned behind the shipping container's feet to block access into a shipping container.