Cooking vessel provided with an improved riveted handle
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Solution Overview
Problem
Cooking containers with riveted handles can damage each other's non-stick coatings when stacked, due to the rivets coming into contact with the internal surfaces during impacts or movements, leading to degradation of the coating during storage or transport.
Innovation Solution
A cooking container design featuring rivets with a radial extension and a rounded boss that extends further from the side wall than the rivet head, preventing contact with the internal surface of a larger container when stacked, and made from stainless steel with a polished finish to avoid scratching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cooking container is stacked inside a larger cooking container for storage or transport, then storage efficiency and transport convenience are improved, but the rivets come into contact with the internal surface of the larger container causing coating degradation
Solution Approach 1:
The patent introduces an intermediary element (protective cap or cover) that fits over the rivet head to prevent direct contact between the rivet and the internal surface of the larger cooking container. This intermediary component absorbs the potential harmful interaction while allowing the stacking arrangement to continue, thus protecting the non-stick coating during storage and transport.
Solution Approach 2:
The patent applies preliminary protective measures by pre-installing protective caps on the rivet heads before the stacking operation occurs. This preliminary action ensures that when the cooking containers are stacked, the protective coverage is already in place, preventing any potential coating degradation from the outset.
2Device complexity
If the rivet head is positioned close to the side wall for structural compactness, then device complexity is reduced, but the rivet head contacts the internal surface during stacking causing damage
Solution Approach 1:
The patent addresses the spatial conflict by extending the protective cap along the axis perpendicular to the side wall surface, effectively using another dimension (the radial dimension) to create separation between the rivet head and the internal surface. This allows the rivet to remain structurally integrated while the protective extension prevents surface contact during stacking operations.
Data Source
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AI summary
The invention relates to a cooking container (1a) comprising a side wall (3a) and a handle (4a), said handle (4a) comprising a connecting piece (10a) fixed to the side wall (3a) by rivets (20a, 21a), each rivet (20a, 21a) comprising a rivet (24a, 25a) which extends outwards from the cooking container (1a), radially to the side wall (3a), said rivet (24a, 25a) comprising a free end (26a, 27a) which is arranged at a distance D1 from the side wall (3a). According to the invention, the connecting piece (10a) includes at least one boss (30a) which extends radially to the side wall (3a), said at least one boss (30a) comprising a rounded free end (31a) which is arranged at a distance D2 from the side wall (3a), the distance D2 being greater than the distance D1.