Lidded Vessel Rib Interface for Sealing Reliability
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Solution Overview
Problem
Existing containers with lid members coupled by hinges face difficulties in ease of opening and closing due to resistance forces, often resulting in insufficient sealing or requiring excessive force.
Innovation Solution
The container design incorporates a container body rib and lid rib configuration with strategically placed gaps and a flange mechanism, allowing the lid member to be opened and closed with reduced force and ensuring reliable sealing by decoupling contact points and distributing resistance forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inner ring is fitted to the inner wall of the opening portion to enhance sealing properties, then sealing reliability is improved, but the lid member receives resistance force during opening/closing making it difficult to operate
Solution Approach 1:
The contact interface between lid member and container body is segmented into two distinct stages: first the sidewall contacts the opening portion, then the inner ring contacts the inner wall. This segmentation distributes the sealing force over time and reduces peak resistance force during operation.
Solution Approach 2:
The sidewall performs a preliminary contact and sealing action before the inner ring engages with the inner wall. This preliminary action prepares the sealing interface and reduces the force required for the final sealing engagement.
2Reliability
If the sidewall, inner ring, and other parts come into contact with the opening portion almost simultaneously, then sealing is achieved, but a large force is involved making it difficult to open/close the lid member
Solution Approach 1:
The simultaneous contact of multiple parts is segmented into sequential contact: sidewall contact occurs first, followed by inner ring contact. This temporal segmentation reduces the peak force required during the opening/closing operation.
Solution Approach 2:
The closing motion is made dynamic through the sequential engagement of different components. The lid member transitions from sidewall contact to inner ring contact in a controlled sequence, allowing force to be applied more efficiently throughout the closing stroke.
3Reliability
If the lid member is designed to receive pushing force for closing, then sealing pressure is improved, but the resistance force during opening/closing increases making operation difficult
Solution Approach 1:
The force application is segmented into two phases: the sidewall phase provides initial contact and guidance, while the inner ring phase provides the main sealing pressure. This segmentation allows pushing force to be applied more efficiently.
Solution Approach 2:
The closing action is made continuous through the sequential engagement of sidewall then inner ring. The useful action of sealing is maintained throughout the closing stroke without interruption, improving mechanical efficiency.
Data Source
Figure 1
Figure 2~3
Figure 4(a)~4(d)
AI summary
A container having a lid coupled to the container via a hinge, with improved reliability and ease of opening/closing of the lid relative to the cylindrical container body. The opening portion of the container body has an outer peripheral surface, at least a part of which has a container body rib. The lid member is formed with a sidewall at a position externally contacting the opening portion when the lid member is closed. The sidewall has an inner side surface provided with a lid rib which the container body rib contacts and slides over in opening/closing the lid member. In closing the lid member, before the container body rib contacts and slides over the lid rib, no other part of the opening portion than the container body rib comes into contact with the lid member.