Resin Container Bulging Area for Buckling Resistance
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Solution Overview
Problem
Conventional resin-made containers face challenges in achieving sufficient buckling resistance while pursuing further weight reduction, as existing solutions do not adequately address the issue of shock/load absorption in the vertical direction.
Innovation Solution
The resin-made container incorporates a decompression absorption portion with a bulging area protruding outward, which is curved in both vertical and horizontal sections, and a vertically elastically deformable cushion portion, allowing for enhanced shock/load absorption and improved buckling resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the thickness of the container is decreased for weight reduction, then the weight of the container is reduced, but the buckling resistance of the container deteriorates
Solution Approach 1:
The patent introduces a bulging area with curved surface in the decompression absorption portion. The curved geometry provides structural reinforcement that enhances buckling resistance while using minimal material, allowing weight reduction without sacrificing strength.
Solution Approach 2:
The container body is divided into functional sections including the decompression absorption portion with the bulging area. This segmentation allows specific regions to be optimized for different functions - the bulging area provides structural support while other areas can be thinner for weight reduction.
2Strength
If a vertically elastically deformable cushion portion is provided to absorb shock/load, then the buckling resistance is improved, but the device complexity increases
Solution Approach 1:
The patent combines the decompression absorption function and the shock absorption function into a single integrated structure - the bulging area in the decompression absorption portion serves both purposes. This merging avoids the need for separate cushion portions, reducing structural complexity while maintaining buckling resistance.
Solution Approach 2:
The bulging area is designed to perform multiple functions: it provides structural reinforcement for buckling resistance, serves as a decompression absorption portion, and acts as a shock absorber through its elastic deformation capability. This multi-functionality eliminates the need for additional specialized components.
3Object-affected harmful factors
If the bulging area protrudes to the outer side with curved shape, then the shock absorption capability is enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies parameter ranges for the bulging area including protrusion distance (0.5-2.0 mm) and curvature radius (5-50 mm). By defining acceptable parameter ranges rather than exact values, the design tolerates manufacturing variations while maintaining shock absorption functionality.
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
This configuration effectively enhances buckling resistance by allowing the bulging area to absorb shocks/load vertically and the cushion portion to deform elastically, providing improved shock/load absorption and enabling further weight reduction while maintaining decompression absorption capability.
Implementation Method 1
a cushion portion that is elastically deformable in the vertical direction
Implementation Method 2
the bulging area of the decompression absorption portion will bulge to the outer side of the container, thereby absorbing this shock/load
Data Source
AI summary
A resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost part. A decompression absorption portion provided in form of a recess in the body portion includes a bulging area protruding to the outer side of the container.