Rolling Tarp Bow Tensioning for Faster Trailer Deployment

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Solution Overview

Problem

The deployment of rolling tarp systems on flatbed trailers is inefficient due to the manual processes of positioning and tensioning bows and tarps, which can delay shipping schedules.

Innovation Solution

A motorized deployment system with tensioning assemblies and roller assemblies that automate the positioning and tensioning of bows along the trailer, using actuators and motors to move the bows and tension the tarp, allowing for quicker and more efficient deployment and retraction of the tarp system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual processes are used for positioning and tensioning bows and tarps, then the system structure remains simple, but the deployment time increases and shipping efficiency decreases

Engineering Contradiction:
Improvedeployment speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical operations with an automated control system. A controller receives signals and automatically controls the tensioning assemblies to adjust tarp tension and the roller assemblies to position bows, eliminating the need for manual positioning and tensioning operations while significantly reducing deployment time

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables automated self-service deployment through the controller that autonomously manages the entire deployment process. The controller automatically coordinates the tensioning assemblies and roller assemblies to deploy and retract the tarp system without requiring manual intervention, thereby improving productivity while maintaining manageable system complexity through integrated control

Inventive Principle:
Principle #25Self-service

2Loss of time

If automated tensioning assemblies and roller assemblies are implemented, then deployment time is reduced, but the device complexity increases

Engineering Contradiction:
Improvedeployment timeVSAvoidsystem complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The controller serves multiple functions by managing both the tensioning assemblies for tarp tension adjustment and the roller assemblies for bow positioning. This multi-functional approach consolidates control operations into a single device, reducing deployment time while preventing excessive system complexity through functional integration

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the control functions for tensioning and positioning operations into a single integrated controller. By merging these control functions, the system achieves automated deployment that reduces time loss while maintaining manageable complexity through unified control architecture

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3768535B1Deployment system for rolling tarp systems
Publication Date: 2023.08.30 TARPSTOP LLC
  • EP3768535B1 patent drawingFigure 1
  • EP3768535B1 patent drawingFigure 2
  • EP3768535B1 patent drawingFigure 3

AI summary

A rolling tarp deployment system includes a trailer, a bulkhead fixed to the trailer, first and second bows movable along the trailer, first and second tensioning assemblies, and a cover. The first tensioning assembly has a first member secured to the first bow, a second member secured to the bulkhead, and a first actuator configured to engage the first and second members to restrain the first bow to the bulkhead. The second tensioning assembly has a third member secured to the second bow, a fourth member fixed to the trailer, and a second actuator configured to engage the third and fourth members and move the second bow away from the bulkhead. The cover is tensioned when both the first and second members and the third and fourth members are engaged.