Trailer Coupler Lock Assembly with Detachable Interlock Adapter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional locks for trailer couplers are bulky, heavy, and cumbersome to operate, failing to securely lock both the coupler and safety chain assembly effectively, as they were not designed to accommodate the safety chain assembly and are inefficient in their operation.
Innovation Solution
A compact and sturdy trailer coupler lock assembly with a rigid protective case and detachable interlock adapter that securely houses and locks both the trailer coupler and safety chain assembly, featuring a dedicated compartment for the safety chain and adjustable retention structures to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional locks are used for trailer couplers, then the coupler can be locked, but the lock becomes bulky, heavy, and cumbersome to operate
Solution Approach 1:
The lock assembly is divided into separate functional components: a body portion housing the locking mechanism, a chain portion for securing safety chains, and a coupler portion for engaging the trailer coupler. This segmentation allows each component to be optimized independently, reducing overall bulk while maintaining locking reliability.
Solution Approach 2:
The lock assembly simultaneously performs multiple functions: locking the trailer coupler, securing safety chains, and providing a compact operational interface. This multi-functionality eliminates the need for separate locking devices, reducing the number of operations required and improving ease of use.
2Device complexity
If conventional locks are designed to secure only the coupler, then the locking mechanism is simple, but the safety chain assembly cannot be securely locked
Solution Approach 1:
The lock assembly merges the coupler locking function and safety chain securing function into a single integrated device. The body portion houses mechanisms that can simultaneously engage the coupler and secure chains, providing comprehensive security without requiring multiple separate devices.
Solution Approach 2:
The lock assembly is designed to perform multiple security functions: securing the coupler, locking safety chains, and accommodating various chain configurations. This versatility is achieved through adjustable components and multi-functional locking mechanisms that adapt to different trailer and chain types.
3Volume of moving object
If a compact lock assembly is designed, then the form-factor is small, but the structural strength and sturdiness may be compromised
Solution Approach 1:
The lock assembly employs a nested structure where the chain securing mechanism is integrated within the body portion, and the coupler engagement features are incorporated into the overall compact form. This nesting allows multiple functional elements to be contained within a small volume without compromising structural integrity.
Solution Approach 2:
The lock assembly utilizes composite construction with high-strength materials strategically positioned to maximize structural integrity within a compact form. Critical load-bearing components are reinforced while non-structural elements are minimized, achieving both compactness and sturdiness.
Data Source
AI summary
A trailer coupler lock assembly includes a rigid protective case defining a compartment which receives a trailer coupler and portions of a safety chain assembly, including chain hooks. An interlock adapter, which is separate and removable from the rigid protective case, is received in the compartment. An engagement member of the interlock adapter mates with a socket of the trailer coupler in the compartment. A case hasp above an aperture in the case aligns with an interlock hasp that extends through the aperture, while a shackle of a lock extends through holes of the hasps. Openings in the case, and structures that define the openings, define retention points that retain the safety chain assembly.