Locking Sidewall Brace for Collapsible Fluid Containment

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Solution Overview

Problem

Collapsible fluid containment devices lack effective mechanisms to securely lock sidewalls in a vertical position, which can lead to fluid leakage during use and inefficient storage and transport.

Innovation Solution

The introduction of rotating sidewall support braces with a locking tab mechanism that allows the sidewalls to pivot from a horizontal to a vertical position and lock in place, utilizing a base support leg, pivotably mounted sidewall support arm, and a locking tab with radial projection to engage with the base support leg, providing resistance to rotation and maintaining the sidewall in a raised configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sidewall braces are designed with locking mechanisms, then sidewall position stability is improved, but device complexity increases

Engineering Contradiction:
Improvesidewall position stabilityVSAvoidbrace mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking function is merged into the existing support arm structure through the locking tab and radial projection features. Rather than adding a separate locking mechanism, the locking capability is integrated into the support arm itself, combining structural support and locking functions in a single component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking mechanism is self-actuating through hydrostatic pressure, eliminating the need for external actuators, sensors, or control systems. The radial projection automatically engages with the support leg when fluid pressure is applied, providing a simple yet effective locking solution.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If sidewalls are designed to be collapsible for easy entry/exit, then ease of operation is improved, but fluid leakage risk increases during use

Engineering Contradiction:
Improveequipment entry and exitVSAvoidfluid containment integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The sidewall brace is designed to be dynamic during operation (collapsible for entry/exit) and then self-lock into a fixed position when fluid is contained. The mechanism transitions from a movable state during loading to a locked stationary state during containment, accommodating both operational flexibility and containment integrity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The brace automatically locks into position when fluid pressure is applied, eliminating the need for manual locking operations. The hydrostatic pressure from the contained fluid itself activates the locking mechanism, ensuring containment integrity without additional operational steps.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution ensures secure containment of fluids by maintaining sidewalls in a vertical position, facilitating easy entry and exit of equipment or vehicles while allowing for efficient storage and transport by minimizing initial rotational resistance and utilizing hydrostatic pressure to lock the sidewalls in place, thus preventing fluid leakage.

Implementation Method 1

a locking tab for holding the sidewall support arm in the generally vertical position

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a locking tab with radial projection to engage with the base support leg, providing resistance to rotation

Methodology Applied
Scientific EffectNormal force: Force

Implementation Method 3

utilizing hydrostatic pressure to lock the sidewalls in place, thus preventing fluid leakage

Methodology Applied
Scientific EffectHydrostatic pressure: Pressure Increase

Data Source

PatentEP3240643B1Locking sidewall brace for collapsible fluid containment devices
Publication Date: 2020.04.29 NEW PIG CORP
  • EP3240643B1 patent drawingFigure 1
  • EP3240643B1 patent drawingFigure 2
  • EP3240643B1 patent drawingFigure 3

AI summary

Portable collapsible fluid containment devices (5) are disclosed comprising sidewall support braces (10) that rotate from a collapsed generally horizontal position to a raised generally vertical position and lock into place. The sidewall braces (10) may be attached to at least one sidewall (7) of the containment device (5), and when raised support the sidewall (7) in a fluid containment configuration. The sidewall braces (10) comprise a base support leg (12), a sidewall support arm (20) rotatably mounted on the support leg (12), and a locking tab (25) for holding the sidewall support arm (20) in the generally vertical position.