Pressure Reduction Absorbing Bottle with Movable Wall Mechanism

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Solution Overview

Problem

Bottles with a body portion of smaller diameter than the heel portion face inefficiencies in pressure reduction absorption, leading to inadequate volume and performance.

Innovation Solution

A pressure reduction-absorbing bottle design featuring a cylindrical shoulder and body portions with a straight cylindrical part having an outer diameter greater than or equal to 0.60 times the heel portion's diameter, along with panel portions and ribs for increased rigidity and label support, allowing stable pressure absorption and improved external appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the body portion diameter is reduced to improve external appearance and stability, then the bottle's attractiveness and center of gravity are improved, but the volume decreases and pressure reduction absorption becomes inefficient

Engineering Contradiction:
Improvebottle appearanceVSAvoidbody portion volume
Core Design Contradiction:
ShapeVSVolume of stationary object

Solution Approach 1:

The patent applies parameter changes by establishing a specific diameter ratio relationship between the body portion and heel portion (body portion diameter ≥ 0.60 times heel portion diameter). This quantitative parameter optimization resolves the contradiction by finding the optimal balance point where the bottle maintains both improved appearance/stability and sufficient volume for pressure reduction absorption.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If the body portion diameter is reduced to lower center of gravity and improve stability, then the bottle's standing stability is improved, but the pressure reduction absorption capacity is compromised

Engineering Contradiction:
Improvebottle stabilityVSAvoidpressure reduction absorption performance
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent resolves this contradiction through parameter optimization by defining the body portion diameter as at least 0.60 times the heel portion diameter. This specific parameter range ensures the bottle achieves sufficient stability for upright positioning while maintaining adequate internal volume for effective pressure reduction absorption, thus balancing both stability and functional reliability.

Inventive Principle:
Principle #35Parameter changes

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 design maintains appropriate pressure reduction-absorbing performance while enhancing the bottle's external appearance and stability, ensuring effective pressure reduction absorption and preventing label creases.

Implementation Method 1

The movable wall portion rotates around a connection portion between the rising circumferential wall portion and the movable wall portion so as to move the recessed circumferential wall portion in an up-and-down direction

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

the body portion is provided with two or more panel portions at intervals in a circumferential direction of the body portion, the panel portions being depressed inward in a radial direction of the body portion, and a pillar portion being formed between panel portions next to each other

Methodology Applied
Scientific EffectStructural reinforcement:

Data Source

PatentEP3028951B1Pressure reduction absorbing bottle
Publication Date: 2019.12.25 YOSHINO KOGYOSHO CO LTD
  • EP3028951B1 patent drawingFigure 1
  • EP3028951B1 patent drawingFigure 2
  • EP3028951B1 patent drawingFigure 3

AI summary

A pressure reduction-absorbing bottle (1) is provided with a cylindrical shoulder section (12), a cylindrical body section (13) which continues to the lower end of the shoulder section, and a closed-end cylindrical bottom section (14) which continues to the lower end of the body section. The bottom section is provided with a heel section (41) which is connected to the lower end opening of the body section, and a bottom wall section (43) which closes the lower end opening of the heel section. The bottom wall section is provided with a ground contact section (42), a raised peripheral wall section (61), a movable wall section (62), and a depressed peripheral wall section (63). In order to enable the depressed peripheral wall section to move vertically, the movable wall section is provided so as to be pivotable about the connection portion (65a) where the raised peripheral wall section and the movable wall section are connected. The body section is provided with a straight cylinder section (21) which continues to the lower end of the shoulder section and which extends downward. The outer diameter of the straight cylinder section is greater than or equal to 0.60 times the outer diameter of the heel section and less than 1 time the outer diameter of the heel section.