Trailer Leg Securing Pin and Locking Mechanism
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Solution Overview
Problem
Conventional trailer support legs are vulnerable to theft when unattached from trucks, as existing security methods are easily defeated by thieves using cutting tools or replacement hardware.
Innovation Solution
A trailer leg securing device that utilizes a securing pin and locking mechanism, which prevents the legs from being raised by engaging with pre-drilled holes in the leg structure, combined with a locking system using a padlock or biometric devices, to secure the legs in a lowered position, preventing towing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional securing methods (chains, locks, disabling mechanisms) are used to secure trailer legs, then the trailer is protected against theft, but these methods are easily defeated by thieves using cutting tools or replacement hardware
Solution Approach 1:
The invention extracts the securing function from external components (chains, locks, disabling mechanisms) and integrates it directly into the trailer leg structure itself. The leg includes integrated features such as pre-drilled holes, securing pins, and locking mechanisms that are built-in rather than added-on, making the security function inherent to the leg structure and much harder to defeat.
Solution Approach 2:
The securing components (pins, locks, cables) are nested within or integrated into the leg structure itself. The holes are pre-drilled into the leg, the pins fit into these holes, and the locking mechanisms are built into the leg assembly, creating a nested configuration where security features are embedded within the structural components rather than being separate attachments.
2Reliability
If securing devices are added to prevent theft, then security is improved, but the device complexity and potential points of failure increase
Solution Approach 1:
The invention merges the structural leg components with the security components into a unified assembly. The leg structure itself provides the mounting points, the securing pins are integrated with the leg, and the locking mechanisms are built into the leg assembly. This consolidation reduces the number of separate components and potential failure points while maintaining security functionality.
3Reliability
If the legs are secured in the lowered position to prevent towing, then unauthorized towing is prevented, but the trailer cannot be quickly deployed when needed
Solution Approach 1:
The securing system is designed to be dynamic rather than static. The securing pins can be quickly removed, and the locking mechanisms can be rapidly released, allowing the legs to transition from secured to unsecured positions quickly. This enables fast deployment when the trailer needs to be moved while maintaining security when parked.
Data Source
AI summary
Devices and systems for securing and locking tractor trailer support legs in the down position are described herein. A securing pin passing through one of the support legs of a trailer while in the down position prevents the trailer legs from being raised. The pin can be locked in place such that only authorized users may remove the pin, raise the support legs, and move the trailer. A variety of kits for retrofitting existing trailers with securing devices are also provided.