Trailer Hitch Security Locking Rod Mechanism
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Solution Overview
Problem
Existing trailer security devices are either too complex and costly or easily defeated by thieves, failing to provide effective deterrence against theft while being user-friendly and cost-effective.
Innovation Solution
A trailer hitch security device featuring a durable hardened steel receptacle with a 'dummy' hitch ball and a locking rod system that uses a rod terminus locking device without a hasp, preventing access with bolt cutters and other breach tools, ensuring the hitch cannot be disengaged once locked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hitch locking systems with hasps are used, then the device is easier to manufacture and operate, but it becomes vulnerable to bolt cutters and easily defeated by thieves
Solution Approach 1:
The patent removes the vulnerable hasp component from the locking mechanism entirely. Instead of using a traditional hasp that can be cut with bolt cutters, the invention employs a rod terminus locking device that locks the locking rod in place without exposing a cuttable hasp, thereby extracting the weakness from the system while maintaining functionality
Solution Approach 2:
Rather than protecting the hasp with additional layers or making it more complex, the invention inverts the approach by eliminating the hasp altogether and using a rod terminus locking mechanism that locks from the end of the rod, reversing the traditional locking approach to achieve superior security
2Reliability
If complex security devices are used to prevent theft, then theft resistance improves, but the device becomes too complex and costly for practical use
Solution Approach 1:
The locking system is divided into distinct functional segments: the receptacle that holds the hitch ball, the locking rod that secures the receptacle, and the rod terminus locking device that secures the rod. This segmentation allows each component to be manufactured independently using simple processes while collectively providing robust theft resistance
Solution Approach 2:
The invention changes the critical parameter from having a cuttable hasp to having a rod terminus locking mechanism that cannot be easily cut or pried open. This parameter change fundamentally alters the theft resistance without requiring complex materials or manufacturing processes, maintaining ease of manufacture while dramatically improving security
3Ease of operation
If pad locks and hasps are used in hitch security devices, then the basic locking function is achieved, but the device becomes vulnerable to bolt cutters and easily breached
Solution Approach 1:
The invention converts the potential harm of having any locking mechanism into a benefit by designing a locking system where the locking rod itself becomes the security feature. The rod terminus locking device transforms the previously vulnerable hasp area into a strengthened locked terminus, turning the potential weakness into a security advantage that resists bolt cutters and prying tools
Data Source
AI summary
A trailer hitch security system for blocking access to a trailer hitch, includes a breach-resistant enclosure within which is positioned hitch engagement means (such as a hitch ball). A locking rod is configured for extending through orifices formed in the enclosure, for reversibly locking into position, and, when in-place, preventing removal of any engaged trailer hitch. Shrouds surround the orifices to prevent access to the termini of the locking rod to further impede tampering or attempted removal of the locking rod.