Resin Container Oblique Folding Inducing Portion Drainage

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Solution Overview

Problem

Soft containers for water servers are prone to irregular deformation and liquid retention due to atmospheric pressure, thickness variations, and scratches during use, which can inhibit complete drainage and lead to residual liquid.

Innovation Solution

A resin container with a polygonal shape and obliquely positioned folding deformation inducing portions on its side surface, preventing the round corner surface from becoming a support and ensuring complete drainage by applying irregular forces during liquid draining.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the container has a complete cylindrical shape, then the container structure is simple and easy to manufacture, but the round corner surface portion becomes a support that prevents complete drainage

Engineering Contradiction:

Improvecontainer shape simplicityVSAvoiddrainage completeness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces asymmetry by providing folding deformation inducing portions only at specific round corner surface portions rather than uniformly across the entire container. This asymmetric placement creates selective support points that guide the crushing direction, allowing the container to be compressed toward the center while preventing the round corners from acting as stable supports that would hinder drainage.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The folding deformation inducing portions are pre-formed during container manufacturing, creating predetermined weak points that will fold first during the draining process. This preliminary preparation ensures that when atmospheric pressure acts on the container during use, the deformation occurs in a controlled manner that maintains drainage pathways open, rather than allowing random folding that could block liquid flow.

Inventive Principle:

Principle #10Preliminary action

2Stability of the object's composition

If the round corner surface portion becomes a support, then the container maintains structural stability, but folding deformation is inhibited and liquid draining is incomplete

Engineering Contradiction:

Improvecontainer structural stabilityVSAvoidliquid drainage completeness

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The patent applies local quality by differentiating the properties of different container surfaces. The round corner surface portions have folding deformation inducing portions that make them prone to controlled folding, while other portions of the container maintain their original structural integrity. This localized modification allows specific areas to yield to atmospheric pressure while the overall container structure remains stable enough to maintain its functional form during draining.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If the container is made flexible for disposable use, then the container can be crushed and discarded after use, but the container deforms irregularly due to thickness variations and scratches

Engineering Contradiction:

Improvecontainer flexibilityVSAvoidcontainer deformation uniformity

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent converts the harmful effect of thickness variations and scratches into a beneficial outcome. Instead of trying to eliminate these imperfections, the design uses folding deformation inducing portions that channel the irregular forces generated by these variations into controlled folding patterns. The imperfections that would normally cause unpredictable deformation are redirected to fold the container in a manner that maintains drainage efficiency.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 container effectively prevents liquid from remaining by inducing deformation that ensures the round corner surface does not support the container, allowing for complete drainage regardless of manufacturing variations or scratches.

Implementation Method 1

an elongated first folding deformation inducing portion is formed on the round corner surface portion

Methodology Applied

Scientific EffectFolding deformation: Folding

Implementation Method 2

the container being crushed with draining of the liquid

Methodology Applied

Scientific EffectAtmospheric pressure: Pressure Increase

Data Source

PatentUS11247805B2Resin container

Publication Date: 2022.02.15 NISSEI ASB MASCH CO LTD

AI summary

There is provided a resin container including an upper surface portion, a side surface portion connected to the upper surface portion, and a bottom surface portion disposed on a side opposite to the upper surface portion and connected to the side surface portion. A round corner surface portion is formed to the side surface portion. A first folding deformation inducing portion is formed on the round corner surface portion. When the container is viewed from a side surface portion side such that a central axis of the container and the round corner surface portion overlap with each other, the first folding deformation inducing portion is oblique with respect to the central axis.