Resin Bottle Hexagonal Depression Pattern for Pressure Resistance

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Solution Overview

Problem

Resin-made bottles experience deformation due to inner pressure build-up, which compromises their aesthetic design and structural integrity, especially when filled with carbonated drinks or exposed to high temperatures.

Innovation Solution

The resin-made bottle features a hexagonal lattice pattern of rhombus-shaped depressions with embossed surfaces in specific band-like regions, accompanied by a rib region with discontinuous ribs, to effectively suppress deformation while maintaining aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a reinforcing rib is provided to suppress bottle shape deformation, then the structural integrity is improved, but the aesthetic effect of ornamentation is lost

Engineering Contradiction:
Improvestructural integrityVSAvoidaesthetic effect
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The patent applies local quality by creating depressions with different surface characteristics (embossed vs. non-embossed) in specific locations. The embossed depressions in visible regions provide aesthetic appeal while the non-embossed depressions in less visible regions provide structural reinforcement. This local differentiation allows simultaneous achievement of both aesthetic effect and deformation suppression without requiring traditional reinforcing ribs that would compromise appearance.

Inventive Principle:
Principle #3Local quality

2Reliability

If the bottle is filled with carbonated drink or placed under high temperature, then the inner pressure builds up, but the bottle shape deforms

Engineering Contradiction:
Improvepressure resistanceVSAvoidbottle shape deformation
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent segments the bottle surface into multiple depression regions that distribute the internal pressure more evenly. Instead of a continuous surface that would deform uniformly under pressure, the segmented depression structure creates multiple localized stress distribution zones. The non-embossed depressions act as pressure relief zones that prevent concentrated stress points, thereby suppressing overall bottle shape deformation under high temperature and carbonated drink conditions.

Inventive Principle:
Principle #1Segmentation

3Shape

If ornamentation is provided in the bottle to achieve aesthetic design effect, then the visual appeal is improved, but the bottle shape deformation under pressure is not suppressed

Engineering Contradiction:
Improveaesthetic effectVSAvoiddeformation suppression
Core Design Contradiction:
ShapeVSStrength

Solution Approach 1:

The patent applies local quality by creating depressions with different surface characteristics (embossed vs. non-embossed) in specific locations. The embossed depressions in visible regions provide aesthetic appeal while the non-embossed depressions in less visible regions provide structural reinforcement. This local differentiation allows simultaneous achievement of both aesthetic effect and deformation suppression without requiring traditional reinforcing ribs that would compromise appearance.

Inventive Principle:
Principle #3Local quality

4Shape

If a continuous pattern is formed on the bottle body, then the aesthetic effect is improved, but the bottle shape deformation is not effectively suppressed

Engineering Contradiction:
Improveaesthetic effectVSAvoiddeformation suppression
Core Design Contradiction:
ShapeVSStrength

Solution Approach 1:

The patent segments the bottle surface into multiple depression regions that distribute the internal pressure more evenly. Instead of a continuous surface that would deform uniformly under pressure, the segmented depression structure creates multiple localized stress distribution zones. The non-embossed depressions act as pressure relief zones that prevent concentrated stress points, thereby suppressing overall bottle shape deformation under high temperature and carbonated drink conditions.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3514075B1Resin-made bottle
Publication Date: 2023.11.01 SUNTORY HLDG LTD
  • EP3514075B1 patent drawingFigure 1
  • EP3514075B1 patent drawingFigure 2
  • EP3514075B1 patent drawingFigure 3

AI summary

A plurality of depressions (8) each having a surface area of 1-100 mm2 are provided in a predetermined pattern in at least a partial region of a resin-made bottle (1).