Closure Cap For A Detergent Bottle

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Solution Overview

Problem

Existing closure caps for detergent bottles are prone to breaking and losing tightness during e-commerce distribution due to impacts and forces, which can lead to leakage, and their surface elements compromise strength and sealing integrity.

Innovation Solution

The closure cap features surface elements with a radius of curvature larger than the base, providing a smooth transition and distributing impact forces, thus enhancing breaking strength and maintaining tightness, while maintaining effectiveness for stain pretreatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If surface elements with sharp edges are provided on the closure cap for stain pretreatment, then the effectiveness for pretreating stains is improved, but the breaking strength and tightness of the closure cap deteriorate under impact forces

Engineering Contradiction:

Improvestain pretreatment effectivenessVSAvoidbreaking strength

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The patent applies curvature by providing a radius of curvature at the circumferential edge of each surface element, where the radius is larger than the largest longitudinal extent of the base. This rounded edge design eliminates sharp transitions while maintaining the surface elements' ability to rub detergent into stains, thereby preventing stress concentration and improving breaking strength under impact forces.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Adaptability or versatility

If surface elements are added to the closure cap for stain pretreatment, then the functionality for pretreating stains is improved, but the reliability under transport impacts deteriorates

Engineering Contradiction:

Improvestain pretreatment functionalityVSAvoidtightness maintenance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The rounded circumferential edges with radius larger than the base extent prevent stress concentration that would compromise the seal. This curvature design allows the surface elements to maintain their stain pretreatment functionality while withstanding transport impacts without compromising the closure cap's tightness or sealing reliability.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Strength

If surface elements with large radius of curvature are provided, then the breaking strength is improved, but the surface roughness for effective stain pretreatment may be reduced

Engineering Contradiction:

Improvebreaking strengthVSAvoidsurface roughness

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The patent applies local quality by differentiating between the circumferential edge region and the top surface of the surface elements. The circumferential edge has a large radius of curvature for strength, while the top surface maintains sufficient roughness and protrusion height for effective stain pretreatment. This localized differentiation allows both requirements to be satisfied simultaneously.

Inventive Principle:

Principle #3Local quality

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 significantly improves the closure cap's breaking strength and sealing integrity during impacts, allowing it to withstand higher drop heights and maintain functionality for stain pretreatment and easy operation in adverse conditions.

Implementation Method 1

the surface elements according to the invention result in a certain distribution, redirection or dispersion of the forces that act on the closure cap on impact during the drop test

Methodology Applied

Scientific EffectStress distribution:

Implementation Method 2

a radius of curvature is provided at the circumferential edge of each of the surface elements, which radius of curvature is larger than the largest longitudinal extent of the base of the surface element

Methodology Applied

Scientific EffectStress concentration reduction:

Data Source

PatentUS20210024257A1Closure Cap For A Detergent Bottle

Publication Date: 2021.01.28 HENKEL KGAA

AI summary

A closure cap for a detergent bottle, the closure cap including at least one cap wall having a plurality of surface elements spaced apart from one another. The surface elements each have a circumferential edge, starting from which the particular surface element extends from a datum plane of the cap wall, and which surrounds a base of the surface element located in the datum plane of the cap wall. In order to form a smooth transition from the datum plane that does not have a notch effect, a radius of curvature is provided at the circumferential edge that is larger than the largest longitudinal extent of the base of the surface element.