Resin Bottle Bottom Structure for Depressurization and Visual Uniformity
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Solution Overview
Problem
Conventional bottles exhibit a feeling of incongruity when viewed from the outside, especially when filled with contents, and have limited performance in absorbing depressurization.
Innovation Solution
A bottle design featuring a cylindrical shape with a concave and convex portion on the rising peripheral wall, a rotatable movable wall, and vertical ribs on the rising peripheral wall to improve appearance uniformity and depressurization absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional bottle bottom structure is used, then the manufacturing is simple, but a feeling of incongruity occurs when viewing the bottom from outside a filled bottle
Solution Approach 1:
The patent applies local quality by forming a concave-convex portion specifically on the rising peripheral wall of the bottle bottom. This localized structural modification creates light-diffusing convex parts and light-receiving concave parts only where needed, without complicating the overall manufacturing process. The concave-convex portion is integrated into the existing bottom structure, maintaining manufacturing simplicity while locally improving appearance uniformity.
2Device complexity
If a conventional bottle bottom structure is used, then the structure is simple, but the performance of absorbing depressurization is limited
Solution Approach 1:
The patent applies dynamics by making the movable wall portion rotatable about a connecting part rather than fixed. This rotational freedom allows the depressed peripheral wall to move upward dynamically during depressurization, enabling the bottle to absorb pressure changes effectively. The movable wall portion rotates in response to internal pressure variations, providing adaptive depressurization absorption without requiring complex mechanical systems.
3Stability of the object's composition
If the lower end of the convex part is connected to the ground contact portion, then the standing stability is improved, but the structural complexity increases
Solution Approach 1:
The patent applies merging by connecting the lower end of the convex part directly to the ground contact portion, integrating two functional elements into a continuous structural component. This connection allows the convex part to serve dual purposes: improving appearance through light diffusion and enhancing standing stability by extending the ground contact area. The merged structure eliminates the need for separate stabilizing elements, maintaining structural simplicity while achieving improved stability.
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 suppresses the feeling of incongruity by diffusing light and enhances depressurization absorption through flexible movement of the movable wall, improving standing stability and depressurization capacity.
Implementation Method 1
light incident on the rising peripheral wall portion is diffusely reflected by the concave and convex portion
Data Source
AI summary
The present invention relates to a bottle which is formed of a synthetic resin material into a cylindrical shape with a bottom. A bottom wall portion of a bottom of the bottle includes: a ground contact portion; a rising peripheral wall portion; a ring-shaped movable wall portion; and a depressed peripheral wall portion. The movable wall portion is rotatably disposed about a connecting part with the rising peripheral wall portion so as to move the depressed peripheral wall portion upward, and a concave and convex portion is formed over an entire circumference of the rising peripheral wall portion.