Sliding Tarp System with Extended Tracks for Full Flatbed Access
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Solution Overview
Problem
Current sliding tarp systems for trailers do not allow full unobstructed access to the flatbed, cannot accommodate loads wider than the trailer, have issues with rear tensioner operation, struggle with double transition systems on drop deck trailers, and face premature fatigue and cracking due to lightweight components and inadequate flap closure.
Innovation Solution
The sliding tarp system allows full retraction past the front end of the trailer, provides mechanisms for widening tarp coverage, enables remote tension release, includes frame carriers that align correctly with upper tracks, incorporates reinforcing elements to prevent fatigue, and features improved flap securing assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tarp system is retracted to the front of the trailer, then access to the flatbed is improved, but the bulkhead prevents complete retraction past the front end
Solution Approach 1:
The patent extends the tracking system beyond the front end of the trailer in the longitudinal dimension, allowing the tarp frame to retract past the bulkhead into the space in front of the trailer. This dimensional extension resolves the contradiction by providing a path for complete retraction that wasn't available within the traditional trailer boundaries.
Solution Approach 2:
The tracking system is segmented into portions mounted on the trailer and portions that can extend beyond the trailer front end. This segmentation allows the tarp to retract completely off the flatbed while the bulkhead remains in place, separating the retraction path from the bulkhead structure.
2Ease of operation
If lightweight components are used to improve operation, then ease of operation is improved, but premature fatigue and cracking occur
Solution Approach 1:
The patent employs composite construction for the tarp frame, combining lightweight materials with reinforcing elements. This composite approach maintains ease of operation while preventing premature fatigue and cracking by strategically adding strength where needed without significantly increasing overall weight.
Solution Approach 2:
Reinforcing elements are applied locally to the frame carrier assembly at critical stress points rather than throughout the entire structure. This local reinforcement provides the necessary durability to prevent cracking while maintaining the lightweight characteristics of the overall system.
3Ease of operation
If folding arms are used at the rear to roll the tarp out of the way, then access is improved, but complete retraction past the front end is still prevented
Solution Approach 1:
Instead of using folding arms that move the tarp laterally at the rear, the patent extends the retraction path in the longitudinal dimension by mounting tracks that go beyond the front end of the trailer. This allows the tarp to roll completely off the flatbed in the forward direction, achieving full unobstructed access.
4Device complexity
If the tarp width is limited to the flatbed width, then structural simplicity is maintained, but wider loads cannot be accommodated
Solution Approach 1:
The patent employs telescoping side rails that can dynamically extend beyond the width of the flatbed when needed. This dynamic adjustment allows the tarp to accommodate wider loads while maintaining a compact configuration during normal operation, balancing structural simplicity with adaptability.
Data Source
AI summary
Sliding tarp systems employed on trailers are disclosed. Various systems and improvements are disclosed which allow for unobstructed access to the tarp storage area and more reliable operation of the sliding tarp system. Unobstructed access to the storage area is achieved by providing extensions to the sliding tarp system tracks which the sliding tarp system support elements can be slid onto, leaving the storage area completely uncovered. The sliding tarp system track extensions can be removed or reoriented when not in use.