Container
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Solution Overview
Problem
Existing containers with annular seal portions face issues with unpredictable detachment and vigorous content discharge due to varying pressure rates, making it difficult to control the discharge direction and amount.
Innovation Solution
The container design incorporates a detaching seal portion that prioritizes detachment over non-detaching seal portions, with reverse-oriented annular seals and auxiliary seals to maintain a controlled discharge channel, ensuring predictable and stable content release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single annular seal portion extends along the flanged face entirely in its width direction, then the sealing area is maximized, but the detachment position and width vary when pressure increases, causing uncontrolled content discharge
Solution Approach 1:
The annular seal portion is divided into multiple separate annular seal portions (first, second, third, and fourth annular seal portions) arranged circumferentially. This segmentation allows different portions to have different detachment characteristics, with some designed to detach at lower pressures and others maintaining sealing at higher pressures, thereby controlling the detachment position and width precisely.
Solution Approach 2:
Different regions of the seal portion are given different properties: the first and second annular seal portions are positioned to detach first under pressure increase, while the third and fourth annular seal portions maintain sealing. This local differentiation of sealing/detachment properties enables controlled discharge while maintaining overall sealing reliability.
2Productivity
If the rate of pressure increase is high, then the container opens quickly, but the detachment position and width vary, making content discharge vigorous and unpredictable
Solution Approach 1:
The seal portion is pre-configured with specific detachment characteristics before pressure increase occurs. The first and second annular seal portions are designed with properties that cause them to detach at lower pressure thresholds, while the third and fourth portions maintain higher detachment thresholds. This preliminary arrangement ensures that even under rapid pressure increase, the detachment occurs at predetermined positions with controlled width.
Solution Approach 2:
The detachment behavior is controlled by changing the physical parameters of different seal portions. By varying the sealing force, material properties, or geometric characteristics of each annular seal portion, they exhibit different detachment thresholds. This parameter differentiation ensures predictable detachment behavior regardless of the pressure increase rate.
3Strength
If the annular seal portion is sealed over a large area, then sealing strength is improved, but control over detachment width and position becomes difficult
Solution Approach 1:
The large-area seal is segmented into multiple annular seal portions with distinct functions. The first and second portions provide strong sealing that detaches at controlled points, while the third and fourth portions maintain sealing strength. This segmentation preserves overall sealing strength while enabling precise control over where and how much detachment occurs.
Solution Approach 2:
Different local regions of the seal have different qualities: some regions (first and second annular seal portions) are designed for controlled detachment, while other regions (third and fourth annular seal portions) are designed to maintain sealing. This local quality differentiation allows the seal to provide both strong overall sealing and precise detachment control.
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 design ensures a consistent and controlled discharge direction and amount, reducing the likelihood of vigorous discharge and facilitating easier prediction of content flow, even under high pressure increases.
Implementation Method 1
a detaching seal portion (6S) which is to be detached in response to increase of an inside pressure of the container body
Implementation Method 2
deformation of the container body based on an external force applied to a bottom face of the container body
Data Source
AI summary
Provided is a container with which a width and a position of a lid member to be unsealed can be readily made constant, thus making it less likely for contents to be discharged too vigorously and making it easy to predict the discharging direction of the contents. A container body and a lid member of the container body are sealed to each other via an annular seal portion formed along a flanged face of the opening. At a specified position of the annular seal portion, there is provided a detaching seal portion which is to be detached in response to increase of an inside pressure of the container body associated with deformation of the container body based on an external force. At positions facing each other across the detaching seal portion, there are provided non-detaching seal portions comprised of a plurality of annular seal portions extending along a circumferential direction.