Modular Hitch-Mounted Carrier Rack With Universal Twist-Lock Connections
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Solution Overview
Problem
Existing carrier rack systems for motor vehicles are cumbersome, heavy, difficult to store, and often damage vehicles, while being susceptible to theft and providing limited adaptability to various vehicle types, with complex attachment processes and wind resistance issues for roof-mounted systems.
Innovation Solution
A modular, lightweight carrier rack system with universal connections that integrates into vehicles or attaches via a tow hitch, featuring twist-and-lock attachments, center of gravity cradles, and securing mechanisms to securely transport and store diverse items like bicycles, skis, and luggage, ensuring easy installation and access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple straps are used to attach carrier rack to vehicle, then cargo can be secured, but attachment process becomes complicated and system may loosen with use
Solution Approach 1:
The patent replaces the complex mechanical strap attachment system with a simplified universal towing hitch connection system. The carrier rack attaches to the vehicle through a standardized hitch receiver using a simple coupling mechanism, eliminating the need for multiple straps and complex fastening procedures while maintaining secure cargo attachment.
Solution Approach 2:
The patent employs a universal towing hitch connection that can be used across different vehicle types and carrier rack configurations. This standardized interface simplifies the attachment process by providing a single, consistent connection method that works universally, replacing the need for vehicle-specific strap arrangements.
2Adaptability or versatility
If carrier rack is attached to roof, then cargo can be transported, but wind resistance increases and access becomes difficult
Solution Approach 1:
The patent transitions the carrier rack attachment from the vertical roof surface to the horizontal rear towing hitch area. This dimensional change allows cargo to be positioned lower and more aerodynamically, reducing wind resistance while maintaining transport capability. The hitch-mounted position also improves access to the trunk and doors by not obstructing the roofline.
3Adaptability or versatility
If carrier system is attached to bumper, then cargo can be carried, but bumper mechanism is damaged and supportability is limited
Solution Approach 1:
The patent introduces a universal towing hitch as an intermediary connection point between the vehicle and carrier rack. This intermediary system is specifically designed to handle the mechanical loads of cargo transport without damaging the vehicle's bumper mechanism. The hitch acts as a dedicated interface that absorbs and distributes forces appropriately, protecting the bumper while enabling cargo carrying capability.
4Adaptability or versatility
If trailer hitch system is used, then cargo can be transported, but system becomes heavy and difficult to attach and store
Solution Approach 1:
The patent divides the carrier rack system into separable components: a permanent universal towing hitch mounted on the vehicle, and a removable carrier rack assembly. This segmentation allows the carrier rack to be detached and stored when not in use, reducing the effective weight of the moving vehicle. The hitch itself remains lightweight as it is designed for simple connection and disconnection rather than being a heavy-duty trailer system.
Data Source
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AI summary
A unified carrier cargo rack and storage system for a vehicle including a receiver unit installed in the rear of the vehicle and a modular carrier rack, including a transitional carrier bar, a secondary bar and a cargo carrier bar, wherein the cargo carrier bar is further operable to engage and immobilize cargo; are disclosed as are male and female securing mechanisms.