Trailer Wheel Lock With Hub Mount and Tamper Shield
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Solution Overview
Problem
Existing security devices for trailers, such as hitch locks and wheel clamps, are vulnerable to theft as they can be bypassed or tampered with, failing to prevent unauthorized movement or lifting of trailers.
Innovation Solution
A wheel lock mechanism featuring a hub mount with an L-shaped member that securely attaches to the trailer wheel, combined with a shield to protect the nuts and a puck lock for enhanced security, preventing unauthorized removal and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hitch locks are used to secure trailers, then the trailer connection point is protected, but thieves can bypass the lock by chaining the hitch to their vehicle and towing it away
Solution Approach 1:
The security system is divided into multiple independent components: a hub mount that attaches to the wheel hub, an L-shaped member that extends to the trailer frame, and a shield that protects the fastening mechanism. This segmentation ensures that protecting one component (the hitch) is insufficient for security, as the wheel lock provides an additional independent security layer that cannot be bypassed by hitch manipulation alone
2Reliability
If traditional wheel clamps are used to prevent wheel rotation, then movement is deterred, but they can be defeated with enough time and the right tools
Solution Approach 1:
The wheel lock is installed in advance and actively engages with the wheel hub and trailer frame before any theft attempt occurs. The L-shaped member is positioned to interfere with the trailer frame, creating immediate mechanical obstruction that prevents wheel rotation and trailer movement from the outset, rather than requiring active engagement during a theft attempt
Solution Approach 2:
The L-shaped member acts as an intermediary element that connects the hub mount to the trailer frame, creating a mechanical interference system. This intermediary component physically blocks the trailer from moving or being lifted by interfering with the frame structure, adding a layer of security that goes beyond simple wheel rotation prevention
3Ease of manufacture
If the wheel lock uses exposed nuts for attachment, then installation is simple, but unauthorized users can easily access and remove the lock
Solution Approach 1:
The shield provides localized protection specifically around the nut and fastening mechanism area, while leaving the rest of the wheel lock structure exposed and accessible. This selective shielding maintains installation simplicity for the overall device while providing targeted tamper resistance where it is most needed - at the vulnerable fastening points
Solution Approach 2:
The shield transforms the potential harm of exposed nuts (easy tampering) into a benefit by using the same structural elements to create a protective barrier. The shield itself becomes a security feature that leverages the existing fastening structure to prevent unauthorized access, converting the vulnerability of simple installation into an advantage for maintaining structural integrity while adding protection
Data Source
AI summary
A wheel lock having an L-shaped member and a hub mount. When coupled to a wheel of a trailer, the rotation of the wheel forces the L-shaped member into the ground, or into the underside of the trailer, thus immobilizing the wheel from rotating. Additionally, a puck lock, and a locking member having a lock guard, are utilized to ensure that the lock is not tampered with. Furthermore, a shield is incorporated to prevent an unauthorized user from removing the fasteners that secure the wheel lock to the wheel of the trailer.