Cookware Lid Grip Knob With Rotating Steam Regulation
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Solution Overview
Problem
Existing grip knobs for cookware lids are complex, requiring three elements and cannot be assembled independently of the lid, making them difficult to manage and store for use with lids of different dimensions.
Innovation Solution
A grip knob comprising a base and a gripping member with mating fixing means that allow axial approximation for independent assembly, reducing the number of elements to two and enabling assembly without a lid, using a bayonet system or snap system for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the button is designed with three elements (base, rotatable gripping member, and fixed gripping member) and secured to the cover, then the connection is secure and stable, but the device complexity increases and independent assembly becomes impossible
Solution Approach 1:
The patent merges the base and gripping member into a single integrated component with an integrated fixing system. The fixing means are incorporated directly into the button structure, eliminating the need for separate fixing elements and reducing the total component count from three to two, while maintaining secure connection to the cover.
Solution Approach 2:
The integrated fixing means allow the button to be universally applicable to different cover types and dimensions. The button can be independently assembled and stored, then attached to various lids from a commercial series, making the design adaptable and versatile across multiple applications without requiring cover-specific customization.
2Reliability
If the button is secured to the cover using clamping between the cover and superior grip member, then the fixing is secure, but the button cannot be assembled independently of the cover
Solution Approach 1:
The fixing means are pre-integrated into the button structure during manufacturing, allowing the button to be fully assembled and prepared independently before attachment to the cover. This preliminary preparation enables stock management and facilitates later assignment to different covers without requiring cover presence during assembly.
Solution Approach 2:
The button is segmented into functional components (base and gripping member) that can be independently assembled through axial approximation, separating the assembly process from the cover attachment process. This segmentation enables the button to be manufactured and stored as a complete unit, then universally attached to various cover types.
3Adaptability or versatility
If the button uses an integrated fixing means with axial approximation, then independent assembly is enabled and stock management is improved, but the fixing mechanism becomes more complex
Solution Approach 1:
The fixing means are self-contained within the button structure, requiring no external tools, separate fixing components, or complex assembly procedures. The axial approximation mechanism is inherently part of the button design, allowing straightforward attachment to the cover while maintaining simplicity in the overall fixing mechanism.
Data Source
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AI summary
The button (1) has a base (2) fixed to a bonnet lid to receive a culinary article and to delimit a steam evacuation channel with the bonnet. A locking system integrates a gripping unit (3) to the base, where the unit is rotatively mounted around the base along a rotation axis in an angular steam throttling range delimited by two extreme angular steam throttling positions, so as to block an outlet of the channel based on its position. The base and the unit comprise conjugated fixation units e.g. capscrew, for allowing fixation with respect to each other by relative axial connection.