Universal Trailer Coupling Lock With Interchangeable Hitch Adapters
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Solution Overview
Problem
The wide variety of trailer coupler types presents a challenge for manufacturers and users, as there is no single trailer lock that can securely fit every coupler type, leading to high production costs and consumer confusion.
Innovation Solution
A universal trailer coupler lock with a modular design that uses adapters to fit various coupler configurations, allowing for secure locking across different types of trailer coupling systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specific lock is manufactured for each type of trailer coupler, then the lock can securely fit that specific coupler type, but manufacturing costs and inventory complexity increase significantly
Solution Approach 1:
The lock system is divided into two segments: a universal lock body and interchangeable adapters. The lock body remains the same across all coupler types, while adapters are segmented to fit specific coupler configurations (ball hitch, receiver, A-frame, etc.). This segmentation allows the expensive lock body to be manufactured once in high volume, while cheaper adapters handle the variability.
Solution Approach 2:
The lock body is designed with universal functionality to work with multiple coupler types through the adapter interface. The universal cavity in the lock body can accommodate various adapters, making a single lock design suitable for over 30 different coupler types, thereby reducing manufacturing complexity and cost.
2Reliability
If a specific lock is manufactured for each type of trailer coupler, then the lock can securely fit that specific coupler type, but device complexity and consumer confusion increase
Solution Approach 1:
The system segments the variability into separate adapters rather than creating complex variations in the main lock body. Consumers only need to identify their coupler type and select the corresponding adapter, rather than navigating through 30+ different lock designs.
Solution Approach 2:
The adapter serves as an intermediary component between the universal lock body and the specific coupler type. This intermediary handles all the complexity of different coupler configurations, allowing the main lock design to remain simple and consistent across all applications.
3Ease of manufacture
If a universal lock design is used for all coupler types, then manufacturing cost decreases, but the lock cannot securely fit all coupler configurations
Solution Approach 1:
The adapter is designed to nest within the universal lock body cavity. The adapter contains the specific geometry needed for different coupler types, while the lock body provides the universal interface and locking mechanism. This nesting arrangement allows a single lock body to securely fit multiple coupler configurations through the nested adapter.
4Reliability
If over 30 different lock designs are produced for different coupler types, then each coupler type can be securely locked, but inventory investment and retail complexity increase
Solution Approach 1:
Inventory is segmented into one universal lock body model and multiple adapter variants. This reduces the total number of SKUs from 30+ complete lock designs to 1 lock body plus a manageable set of adapters, significantly reducing inventory investment and simplifying retail stocking requirements.
Data Source
AI summary
A modular locking assembly having a universal cavity and adapters for a predetermined type of trailer hitch coupling that adapt the locking assembly to a wide variety of trailer hitch couplers without having to manufacture and stock a different SKU for the most expensive component of the lock.