Removable Handle Latch Interlock to Prevent Recoil Under Heavy Load
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Solution Overview
Problem
Existing removable handles for cooking containers with outwardly-curved sides experience parasitic displacement during heavy use, such as flipping food, due to the latch recoiling under counterforces, compromising safety and handling quality.
Innovation Solution
A removable handle design featuring a latch with a protruding body and hollow body that interlock in the closed position, preventing recoil when counterforces exceed a certain intensity, ensuring the latch remains locked and reducing relative movements between the handle and container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the latch is designed to be movable between open and closed positions under normal use, then ease of operation is improved, but reliability deteriorates under heavy loads causing parasitic displacement
Solution Approach 1:
The latch mechanism transitions from a static fixed-position design to a dynamic movable design that can adapt between two states: movable during normal operation for ease of assembly/disassembly, and locked immobile under heavy loads through the protruding body-hollow body interlocking mechanism to prevent recoil and parasitic displacement
Solution Approach 2:
The system changes the operational parameters of the latch based on load conditions. Under normal conditions, the latch remains movable between open and closed positions. When heavy loads are detected (through the engagement of protruding and hollow bodies), the parameter changes to a locked state where the latch position is fixed and cannot recoil, thus preventing parasitic displacement while maintaining ease of operation during normal use
2Reliability
If the latch is made robust to prevent recoil under heavy loads, then reliability is improved, but device complexity increases
Solution Approach 1:
The latch is segmented into distinct functional components: the main latch body, the protruding body, and the hollow body. This segmentation allows each component to perform its specific function - the protruding and hollow bodies engage to prevent recoil under heavy loads, while the main latch body maintains movability for normal operation, thus achieving reliability without excessive complexity
Solution Approach 2:
The protruding body and hollow body are nested within the latch structure, with the protruding body fitting into the hollow body when engaged. This nesting approach integrates the anti-recoil mechanism compactly within the existing latch geometry, adding reliability functionality without significantly increasing overall device complexity or external dimensions
3Reliability
If the protruding body and hollow body are always engaged, then reliability under heavy loads is improved, but ease of operation deteriorates
Solution Approach 1:
The engagement between protruding and hollow bodies is designed to be dynamic rather than static. During normal operation and assembly/disassembly, the latch moves freely between open and closed positions with the protruding and hollow bodies disengaged. When heavy loads are applied, the mechanism automatically engages the protruding and hollow bodies to lock the latch position, thus maintaining ease of operation while providing reliability when needed
Data Source
AI summary
A removable handle is designed to cooperate with a cooking container having a side wall extended upwards by an outwardly-curved portion including a free end and includes a latch that can be moved between an open and a closed positions. The latch includes a locking panel designed to generate a force on the free end in the closed position, under the action of a means of pressurization, the force having a vertical component F for locking the free end against an upper supporting body. The latch has a protruding body and the handle includes a hollow body or reciprocally. In the closed position, the protruding body and the hollow body are fitted into each other to prevent the latch from recoiling when the free end generates, on the locking panel, a force having a component F1 opposite to the vertical component F with an intensity greater than a predetermined value.