Square Bottle Buckling Prevention via Stress Redistribution

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing square bottle design is prone to buckling deformation when a compressive load is applied vertically, as the circumferential groove with a recessed portion for finger contact is crushed, leading to outward bulging of panel surface portions without the recessed feature.

Innovation Solution

The design incorporates horizontal and vertical stripe portions between the recessed finger contact area and corner surface portions, which redistribute stress and increase rigidity, preventing buckling deformation by compressing the horizontal stripe and transferring stress to the panel surface via the vertical stripe.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a circumferential groove with a recessed portion for finger contact is provided in the panel surface portion, then ease of operation is improved, but the panel surface portion becomes prone to buckling deformation under compressive load

Engineering Contradiction:
Improveease of operationVSAvoidbuckling deformation
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The circumferential groove is segmented into multiple depths: a first depth portion for finger contact in the panel surface portion, and a second depth portion (deeper than the first) in the corner surface portion. This segmentation allows different regions to serve different functions - the shallower recess provides ease of operation while the deeper recess in the corner portion prevents buckling deformation under compressive load.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the circumferential groove is made deeper to prevent buckling, then stability is improved, but the weight of the bottle increases

Engineering Contradiction:
Improvebuckling deformationVSAvoidweight
Core Design Contradiction:
Stability of the object's compositionVSWeight of stationary object

Solution Approach 1:

Different depths of the circumferential groove are provided at different locations around the bottle circumference. The corner surface portion has a deeper recess to prevent buckling, while the panel surface portion has a shallower recess for finger contact. This local differentiation of groove depth allows the bottle to achieve stability where needed without uniformly increasing weight throughout the structure.

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 effectively suppresses buckling deformation by relieving stress in the stepped portions and securing rigidity against compressive loads, ensuring the bottle's structural integrity.

Implementation Method 1

when a compressive load is applied to the square bottle in the vertical direction, the horizontal stripe portion is compressed and deformed in the vertical direction, thereby making it possible to relieve the stress generated in the stepped portion

Methodology Applied
Scientific EffectStress relaxation: Stress Relaxation

Implementation Method 2

the stress generated in the stepped portion when a compressive load is applied to the square bottle in the vertical direction can be suppressed by being transferred to the panel surface portion via the horizontal stripe portion and the vertical stripe portion

Methodology Applied
Scientific EffectStress transfer:

Data Source

PatentUS12103728B2Square bottle
Publication Date: 2024.10.01 YOSHINO KOGYOSHO CO LTD
  • US12103728B2 patent drawing

AI summary

The present invention is a square bottle. In the square bottle, a body portion extending in a vertical direction is configured that a panel surface portion and a corner surface portion are disposed, a circumferential groove is formed at a center portion of the body portion in the vertical direction, a recessed portion for finger contact is disposed in a portion of the circumferential groove located on the panel surface portion, a horizontal stripe portion is provided at an upper end portion of an inner surface defining the circumferential groove, and a vertical stripe portion extending downward from the horizontal stripe portion is disposed.