Bottle Column Grooves Suppress Local Deformation

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Solution Overview

Problem

Conventional bottles made of synthetic resin experience local deformation in the columns between panels due to line pressure and temperature changes, which can persist even after pressure is relieved, especially at the end portions.

Innovation Solution

The bottle features grooves recessed inwardly at the end portions of the columns in the radial direction, extending along the circumferential direction and in contact with the column edges, preventing deformation by reinforcing the end portions and distributing stress effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If panels are provided to suppress swelling and collapsing deformation, then the bottle's resistance to temperature changes is improved, but local denting deformation occurs in the columns between panels due to line pressure

Engineering Contradiction:

Improveresistance to temperature changesVSAvoidlocal denting deformation in columns

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The invention applies a groove structure specifically at the end portions of the columns where deformation occurs, rather than uniformly across the entire column. This localized structural modification reinforces the vulnerable end portions while maintaining the overall panel structure for temperature resistance.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The column structure is segmented by introducing grooves that divide the column wall into distinct regions. These grooves create structural segments that can independently manage stress distribution, preventing the propagation of denting deformation along the entire column.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the bottle is filled with high temperature contents, then the bottle's functionality is improved, but the column deforms in expansion form that may not be recovered

Engineering Contradiction:

Improvefunctionality with high temperature contentsVSAvoidpermanent expansion deformation of column

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The groove structure is applied specifically at the end portions of the column where expansion deformation is most severe. This localized reinforcement provides controlled expansion zones that can accommodate thermal expansion while preventing permanent deformation through the groove's stress-distributing geometry.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The groove structure acts as a pre-designed cushioning element that anticipates thermal expansion. When the bottle is filled with high temperature contents, the groove allows controlled expansion while distributing stresses to prevent permanent deformation, effectively cushioning against the harmful effects of thermal expansion.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Loss of substance

If the lower end portion of the column is formed with a thin wall, then the bottle's material efficiency is improved, but the lower end portion is more likely to deform

Engineering Contradiction:

Improvematerial efficiencyVSAvoiddeformation at lower end portion

Core Design Contradiction:

Loss of substanceVSShape

Solution Approach 1:

The groove structure is applied specifically at the lower end portion where the thin wall causes vulnerability to deformation. This localized structural modification provides reinforcement exactly where needed, allowing the rest of the column to maintain its thin-wall, material-efficient design while the grooved end portion resists deformation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9169035B2Bottle

Publication Date: 2015.10.27 YOSHINO KOGYOSHO CO LTD

AI summary

According to a bottle of the present invention, grooves are formed at each of an upper and a lower end portions of a column; the grooves extend along a circumferential direction; both end portions of each of the grooves in the circumferential direction are in contact with each of both end edges of the column in the circumferential direction, whereby occurrence of local deformation in the column can be suppressed.