Metal Lid with Plastic Connection Ring for Secure Fastening
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Solution Overview
Problem
Existing container lids with metal bottoms often require additional plastic or cardboard components to secure the lid, increasing plastic consumption and complexity, while existing solutions do not efficiently adapt to different container sizes or provide secure and tamper-evident features.
Innovation Solution
A composite lid system comprising a cup-shaped metal lid component and a plastic connection ring with radially extending catches and a hinged design, allowing for secure attachment to a metal or plastic container bottom, with optional tamper evidence features, enabling adaptation to various container sizes and providing secure, removable, and tamper-evident functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a band-type label is adhesively secured over the seam to fasten the lid and container bottom, then the lid is securely fastened, but additional plastic or cardboard components are required increasing plastic consumption and complexity
Solution Approach 1:
The patent merges the lid and container bottom directly through interference engagement of the flared sidewall with the container bottom's receiving surface, eliminating the need for separate band-type labels or adhesive components. This integration reduces plastic consumption while maintaining secure fastening through the mechanical interference fit between the flared lid sidewall and the container bottom.
Solution Approach 2:
The patent extracts and eliminates the band-type label component from the assembly by designing a direct mechanical connection system where the flared lid sidewall engages with the container bottom, removing the need for additional plastic or cardboard labeling components.
2Reliability
If a band-type label is used to fasten the lid, then the lid is securely fastened, but the device complexity increases due to additional components
Solution Approach 1:
The patent combines the fastening function directly into the lid and container bottom structures through interference engagement, eliminating separate fastening components like band-type labels and reducing overall device complexity.
Solution Approach 2:
The patent removes the band-type label component from the system by implementing a direct mechanical interference fit between the flared lid sidewall and the container bottom, thereby reducing structural complexity.
3Adaptability or versatility
If existing solutions are used, then the lid can be attached, but they do not efficiently adapt to different container sizes
Solution Approach 1:
The patent employs a flared sidewall design that can dynamically adapt to different container bottom dimensions through elastic deformation and interference engagement, allowing the same lid structure to securely attach to various container sizes while maintaining attachment reliability.
Data Source
AI summary
A container including a container lid and a container bottom is provided. The container lid is a composite structure including a lid component and a connection ring connected to the lid component. The connection ring connects to the container bottom. The lid component may be a metal component.