Truck Crossbar Tower Coupling Mechanism
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Solution Overview
Problem
Vehicles with limited roof sizes, such as pickup trucks, face challenges in mounting crossbars due to limited options for attaching them to the truck bed without requiring permanent attachments, which limits flexibility in using the truck.
Innovation Solution
A crossbar system that includes a set of towers with a coupling mechanism and bridge pieces, allowing secure attachment to the truck bed side rails without permanent fixtures, enabling easy installation and removal without tools, and accommodating various side rail structures through interchangeable bridge pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If permanent attachment methods are used to mount crossbars to truck side rails, then the crossbars can be securely mounted, but the flexibility of truck use is limited
Solution Approach 1:
The mounting system is divided into separate components: a bridge piece that attaches to the side rail, a tower assembly that receives the crossbar, and a coupling mechanism that connects them. This segmentation allows the system to be installed without permanently modifying the truck while providing secure mounting capability.
Solution Approach 2:
The coupling mechanism includes a movable bridge piece that can be positioned and secured in different locations along the side rail. The system transitions from a static permanent attachment to a dynamic removable attachment that maintains security during use but allows flexibility when needed.
2Ease of operation
If crossbars are mounted on the roof of pickup trucks, then cargo can be transported, but the limited roof size makes this impractical
Solution Approach 1:
Instead of mounting crossbars on the limited horizontal roof area, the system utilizes the vertical dimension by attaching towers to the side rails and extending crossbars outward. This dimensional shift bypasses the roof size constraint while maintaining cargo transport functionality.
3Adaptability or versatility
If mounting options for crossbars above the truck bed are explored, then crossbar attachment becomes possible, but the options are limited or complex
Solution Approach 1:
The bridge piece is designed with multiple functional elements: it attaches to the side rail, positions the tower assembly, and interfaces with the coupling mechanism. This multi-functionality consolidates what would otherwise require multiple separate components, simplifying the overall mounting system while maintaining versatility.
Data Source
AI summary
A crossbar system for a truck bed and methods of mounting a crossbar system to a truck bed are disclosed. In some examples, the crossbar system may include two towers, each coupling an end portion of a crossbar to a truck bed wall. Each tower may include a crossbar housing having a clamp device for securing the crossbar housing around a selected location along the crossbar, and a coupling mechanism configured to secure the crossbar housing to the truck bed. The crossbar housing may have a ledge portion configured to sit on an upper surface of the truck bed wall. The coupling mechanism may include a hook member configured to removably engage the ledge portion of the crossbar housing; and an over-center lever that is operable between open and closed positions, which may cause a bridge piece to move between unclamped and clamped positions. The coupling mechanism may include a plurality of alternate bridge pieces, each configured to engage a different truck bed rail structure.