Irreversible Toothed Coupling for Cooking Container Handle Attachment
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Solution Overview
Problem
Existing methods for irreversibly attaching handles to cooking containers are complex, costly, and prone to manufacturing difficulties, with reversible connections being partial and susceptible to damage.
Innovation Solution
A gripping assembly featuring a metal attachment with asymmetrical toothed elements that irreversibly couple with a deformable handle seat, allowing for a secure and stable connection using bakelite or similar materials, ensuring the handle remains integral to the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional irreversible connection methods (overmolding, gluing, screws, or rivets) are used to fix the handle to the cooking container, then the connection is secure, but the manufacturing process becomes complex and costly
Solution Approach 1:
The metal attachment is segmented into two functional parts: a plate for fixing to the cooking container and a quick coupling for irreversible connection to the handle. This segmentation allows each part to be optimized independently and simplifies the overall manufacturing process by separating the attachment functions.
Solution Approach 2:
The quick coupling employs asymmetrical toothed elements where the teeth of one element are misaligned with respect to the teeth of the other element along the central axis. This asymmetry creates a secure irreversible grip when the toothed elements are coupled together, preventing disassembly while maintaining manufacturing simplicity.
2Adaptability or versatility
If reversible connection methods with elastically deformable fixing means are used, then the handle can be detached, but the coupling is partial and susceptible to damage to the inner seat of the handle
Solution Approach 1:
Instead of using elastically deformable means in the metal attachment as in prior art, the invention inverts the approach by making the seat of the handle deformable. The teeth of the toothed elements exert pressure on the deformable seat material, creating a secure irreversible grip that prevents damage to rigid components while achieving stable coupling.
3Reliability
If intermediate cup-shaped elements with teeth are used to fix the handle, then the connection is secure, but the assembly process becomes complicated and difficult to position
Solution Approach 1:
The invention merges the functions of the intermediate cup-shaped element and the toothed coupling mechanism into a single integrated quick coupling component. The plate for fixing to the container and the toothed quick coupling are combined in one piece, eliminating the need for separate intermediate elements and simplifying both manufacturing and assembly processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple, economical, and secure irreversible coupling that withstands traction forces, demonstrated by successful cold tensile strength tests, ensuring the handle remains securely attached during use.
Implementation Method 1
the seat of the handle is able to deform as a result of the pressure exerted by the teeth of the toothed elements
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A gripping assembly (1) for a cooking container of food is described, comprising a handle (2) and a metal attachment (3) able to fix the handle (2) to the cooking container, wherein the metal attachment (3) is irreversibly coupled to the handle (2) and comprises a plate (4) for fixing to the cooking container. The metal attachment (3) comprises a quick coupling (5) irreversibly coupled with a seat (6) of the handle (2). The quick coupling (5) comprises two elongated toothed elements (7) parallel to each other and separated by a space, wherein each toothed element (7) comprises a plurality of teeth (8) protruding outwards with respect to a central axis (10) able to divide said space in half and which extends in the direction of elongation of the toothed elements (7).