Composite Flask Stand Lattice for Peel Resistance
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Solution Overview
Problem
Molded elastomeric articles often lack rigidity and exhibit peeling issues when subjected to tension or compression, and there is a need for composite articles with enhanced rigidity, toughness, and improved peel resistance, while also reducing manufacturing steps and costs.
Innovation Solution
A composite article comprising a lattice structure formed by additive manufacturing and an elastomeric section disposed about and within the lattice, which provides enhanced rigidity and toughness, and improves peel resistance without the need for surface treatment of the lattice.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an internal frame or structure is formed and inserted within a mold to provide rigidity to molded elastomeric articles, then rigidity is improved, but the elastomer can peel from the frame when compressed or under tension
Solution Approach 1:
The patent uses a composite structure combining a rigid frame (metal or plastic) with an elastomeric material to create an article that has both rigidity and peel resistance. The frame provides structural strength while the elastomer provides adhesion and flexibility, resolving the contradiction between rigidity and peel resistance through material composition rather than surface treatment alone
Solution Approach 2:
The patent employs a porous or lattice structure in the frame that allows the elastomer to penetrate and bond mechanically within the porous network. This increases the bonding surface area and mechanical interlocking, significantly improving peel resistance without requiring additional surface treatment steps
2Reliability
If surface treatment is applied to enhance adhesion of elastomer to internal frame, then peel resistance is improved, but manufacturing steps and costs increase
Solution Approach 1:
The patent uses a porous or lattice frame structure that provides inherent mechanical keying for the elastomer. The elastomer flows into and bonds within the porous network during molding, creating strong adhesion without requiring separate surface treatment steps such as plasma treatment, priming, or coating, thus maintaining peel resistance while simplifying manufacturing
Solution Approach 2:
The patent combines the structural frame and bonding surface functions into a single integrated component. The porous structure serves both as the load-bearing frame and as the bonding interface for the elastomer, eliminating the need for separate surface treatment processes and reducing manufacturing complexity
3Ease of manufacture
If molded elastomeric articles are formed entirely out of elastomer, then manufacturing is simplified, but the articles lack rigidity and deform under tension or compression
Solution Approach 1:
The patent creates a composite article combining a rigid frame with an elastomeric material. The frame provides the necessary rigidity and structural support, while the elastomer provides flexibility and sealing. This composite approach maintains manufacturing simplicity through one-step co-molding while achieving both rigidity and elastomeric properties
Solution Approach 2:
The patent segments the article into distinct functional zones: a rigid frame portion for structural support and an elastomeric portion for flexibility and sealing. This segmentation allows each material to perform its optimal function while being manufactured as an integrated piece through precision injection molding or overmolding processes
Data Source
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AI summary
A flask stand is configured to support a flask and includes a base ring and a plurality of legs. The base ring is configured to support a lower portion of the flask. Each leg is secured to the base ring and extends outward from the base ring. Each leg includes a body, a lattice, and an elastomeric foot. The body includes a first end portion that is secured to the base ring with the foot portion being opposite the first end portion. The lattice is formed within the foot portion and includes a plurality of members that form an open-mesh frame that defines a plurality of voids between adjacent members of the frame. The elastomeric foot is formed of an elastomer and is disposed about the lattice and within the voids of the lattice. The foot is configured to engage a surface to support the body relative to the surface.