Self-Supporting Cover for IBC Outlet Valves

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Solution Overview

Problem

Existing Intermediate Bulk Containers (IBC) have poor dust-tightness due to loose flap-like covers, require manual handling, and are prone to damage during use, necessitating impractical replacement solutions when damaged.

Innovation Solution

A container with a pivotable cover featuring a bistable film hinge that automatically locks into an open position, allowing for self-supporting operation and easy replacement, ensuring reliable access to outlet valves without manual intervention and preventing accidental closure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a loose flap-like cover is used on the outlet recess, then the structure is simple, but dust-tightness is poor and the cover cannot be held in open position

Engineering Contradiction:
Improveautomatic opening and holding in open positionVSAvoidhinge assembly with locking mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The hinge assembly automatically locks the closure portion in the open position without requiring manual intervention. The locking mechanism engages autonomously when the closure portion is pivoted to the open position, allowing the cover to hold itself open and eliminating the need for continuous manual support.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces the need for complex manual locking mechanisms with a simplified hinge assembly that uses elastic deformation and geometric interlocking. The hinge assembly incorporates a locking element that engages with a corresponding feature on the container, providing automatic positioning and holding functionality.

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

2Ease of operation

If the cover is manually held in open position, then simple structure is maintained, but only one hand remains for operating the valve

Engineering Contradiction:
Improvehands-free operation for valve accessVSAvoidlocking mechanism in hinge assembly
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The hinge assembly's locking mechanism automatically engages when the closure portion is pivoted to the open position, enabling the cover to hold itself open without requiring the user to manually support it. This frees both hands for operating the outlet valve or performing other tasks.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the cover is completely removed to access the outlet valve, then full access is achieved, but the cover must be manually placed back and stowed away

Engineering Contradiction:
Improveeasy access and return of coverVSAvoidtime for removing and replacing cover
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The closure portion is designed to be dynamically pivotable between closed and open positions through the hinge assembly. This allows the cover to remain attached to the container while providing full access to the outlet valve when opened, eliminating the need to completely remove and store the cover separately.

Inventive Principle:
Principle #15Dynamics

4Reliability

If a locking device is provided on both container and cover, then secure locking is achieved, but replacement becomes impractical when damaged

Engineering Contradiction:
Improvesecure locking in open positionVSAvoidreplacement of damaged cover
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The hinge assembly is designed as an integrated unit with the cover, allowing the entire assembly to be replaced as a single component. The locking mechanism is configured so that the closure portion can be detached from the container without damaging the locking features on the container, enabling easy replacement of the cover while maintaining secure locking functionality.

Inventive Principle:
Principle #1Segmentation

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

The solution provides improved handling and dust-tightness by automatically opening the cover for easy access to outlet valves, allowing both hands for operation and simplifying replacement, reducing the risk of accidental closure and damage.

Implementation Method 1

The hinge assembly is configured to hold or lock the closure portion in the second position releasing the outlet recess in a self-supporting manner

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the hinge assembly is configured as a curved film hinge which, depending on its relative position with respect to a pressure point, is prestressed either into the first position closing the outlet recess, or into the second position releasing the outlet recess

Methodology Applied
Scientific EffectPrestressing:

Data Source

PatentUS12017833B2Container having a self-supporting cover for an outlet
Publication Date: 2024.06.25 SCHOELLER ALLIBERT GMBH
  • US12017833B2 patent drawing
  • US12017833B2 patent drawing
  • US12017833B2 patent drawing

AI summary

A container for transporting and storing liquid, viscous or pourable substances, in particular a container of the Intermediate Bulk Container type. The container has a base, a side wall, and at least one outlet recess in the base and/or the side wall, in which an outlet valve is or can be arranged and which is closable on the outside of the container by a cover. The cover has a base section, by which the cover is fastened or fastenable to the container, and a closure section which is hinged on the base section via a hinge assembly such that it can pivot about a rotational axis. The hinge assembly can hold or lock the closure section in a self-supporting manner in a position releasing the outlet recess.