Modular Trailer Hitch System with Interlocking Receivers
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Solution Overview
Problem
Existing trailer hitch attachment systems lack the capability to simultaneously support multiple devices in various configurations, limiting the carrying capacity and versatility for transporting different types of cargo.
Innovation Solution
A four-part trailer hitch attachment system with multiple receivers that can be assembled in various configurations, allowing for the simultaneous attachment of multiple trailer hitch-mountable devices such as cargo carriers and bicycle racks, using interconnected square tubular extension members and lock pins for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single trailer hitch receiver is used, then the structure is simple and easy to manufacture, but the carrying capacity and versatility are limited
Solution Approach 1:
The hitch system is divided into multiple independent receiver components (first receiver, second receiver, third receiver) that can be selectively assembled. Each receiver is a separate module that can be attached to the vehicle or to other receivers, allowing the system to be configured in various arrangements (single receiver, dual receivers, triple receivers) depending on the carrying needs.
Solution Approach 2:
Each receiver is designed with a standardized interface that allows it to function both as an attachment point for cargo carriers and as a connection point for other receivers. This universal interface enables the same component to serve multiple functions: single-device mounting, multi-device mounting, and hierarchical assembly of multiple receivers to create extended mounting structures.
2Adaptability or versatility
If multiple receivers are added to increase carrying capacity, then more devices can be attached simultaneously, but the structural complexity and manufacturing difficulty increase
Solution Approach 1:
The system is segmented into identical or similar receiver modules that can be manufactured using the same processes and then assembled like building blocks. This modular segmentation allows for standardized manufacturing of each receiver component while enabling flexible field assembly of multiple components without requiring complex custom fabrication.
Solution Approach 2:
The receivers are designed to be nestable or attachable in hierarchical configurations where one receiver can be mounted to another receiver in a nested arrangement. This nesting principle allows the system to scale from single to multiple receivers by simply adding more of the same modular component rather than designing entirely new complex structures.
3Adaptability or versatility
If receivers are arranged in fixed configurations, then manufacturing is simplified, but the ability to optimize for different cargo types is reduced
Solution Approach 1:
The hitch system transitions from a fixed configuration to a dynamic, reconfigurable structure where receivers can be attached and detached in various sequences and arrangements. The standardized interfaces enable the system to adapt its configuration dynamically based on the specific cargo requirements, allowing users to optimize the arrangement for different types and numbers of devices without requiring multiple pre-configured systems.
Data Source
AI summary
A four-part trailer hitch attachment system comprising a bottom component, a four-leg intermediate component, a three-leg intermediate component, and a top component. The bottom component comprises a horizontal leg oriented parallel to the long axis of the vehicle and a vertical leg that is welded to a top side of the horizontal leg. The four-leg intermediate component comprises a first vertical leg, a transversely oriented horizontal leg, a longitudinally oriented horizontal leg, and a second vertical leg. The three-leg intermediate component comprises a first vertical leg, a horizontal leg, and a second vertical leg. The top component comprises a horizontal leg and a vertical leg.