Metallic Container Bead Structure to Prevent Accidental Lid Opening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing metallic containers for liquids face issues with accidental opening due to mutual lifting and contact of lids when stored or transported side by side, leading to exposure of contents to air, dust, and chemical substances.
Innovation Solution
A metallic container design featuring a container body with a side wall having an outwardly curled upper edge and a radial bead extending beyond the lid's sealing portion, with the bead's extension being at least 10 times higher than the lid rim, ensuring only the beads contact when stacked, thereby preventing lid contact and accidental opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If containers are stored or transported side by side with lids contacting, then space utilization is improved, but accidental opening occurs due to mutual lifting forces
Solution Approach 1:
The bead acts as an intermediary element between adjacent containers, intercepting radial tightening forces before they can reach the lids. This mediator structure prevents the transmission of lifting forces that would otherwise cause accidental opening, allowing containers to be stored side by side without compromising lid reliability.
Solution Approach 2:
The container structure is segmented into distinct functional zones: the bead forms a protective barrier zone that separates the force transmission path from the lid zone. This segmentation isolates the lids from mechanical interactions with adjacent containers while maintaining space-efficient storage through the compact bead structure.
2Reliability
If bead radial extension is increased to prevent lid contact, then protection against accidental opening is improved, but material consumption and manufacturing complexity increase
Solution Approach 1:
The bead geometry is optimized by adjusting key parameters: the radial extension is sufficient to prevent lid contact but not excessive, and the height H is maintained at least 10 times greater than the radial extension F. This parameter optimization achieves reliable protection while minimizing material consumption and manufacturing complexity.
Solution Approach 2:
The bead structure exhibits local quality variations with a flat portion providing constant radial extension for reliable force interception, and a curved portion transitioning to the container body. This localized structural differentiation ensures protection functionality while optimizing material distribution and reducing overall complexity.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
This application relates to metallic containers for containing liquids such as paint or varnishes, comprising a container body and a lid. The solution of the present disclosure provides an innovative container (1) having for preventing the accidental opening, through a bead (15) formed in a side wall (11) of a container body (10) which radially extends outwards beyond the sealing portion (21) of a lid (20), so as to prevent that the lid rims (22) of two containers (1) placed side by side may contact, only the beads (15) contacting.