Cooking Vessel Lid Locking Structure for High-Pressure Food Processors
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Solution Overview
Problem
Existing food processors with heatable cooking vessels face challenges in securely locking the lid during high-pressure cooking processes, particularly when an agitator is used, as known solutions fail to effectively absorb the resulting forces and pressures, risking the lid being lifted off.
Innovation Solution
A wave-like locking part with a cavity extending over the axial length, featuring an arc-like overlapping section that form-fits with the vessel and lid edges, is designed to be rotatably mounted, allowing for easy manual or motor-driven adjustment between locking and release positions, ensuring the lid is securely locked without requiring excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is designed to absorb high pressures and forces during cooking, then the lid is securely locked, but the locking mechanism requires significant force to operate
Solution Approach 1:
The locking part is designed to rotate between a locked position and a release position, transforming the static locking mechanism into a dynamic one. This rotation allows the locking part to engage and disengage the locking protrusion smoothly, reducing the force required for operation while maintaining secure locking when engaged
Solution Approach 2:
The locking mechanism is divided into distinct functional elements: the locking part with cavity, the locking protrusion on the lid, and the arc-like overlapping section. This segmentation allows each component to perform its specific function efficiently, with the cavity receiving the protrusion to create a positive lock that is secure yet easy to release through rotation
2Reliability
If the locking part is elongated in the axial direction to provide sufficient locking length, then the lid is secured against vertical lifting, but the device complexity increases
Solution Approach 1:
The locking part features an arc-like overlapping section with a cavity that curves to match the geometry of the locking protrusion. This curved design allows the elongated locking part to engage smoothly with the lid edge, providing sufficient locking length to prevent vertical lifting while maintaining a relatively simple overall structure through the use of curved rather than complex geometric forms
Data Source
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AI summary
The invention relates, in the first instance, to an electrically operated food processor (1) with a cooking vessel (6) and a lid (10) for the cooking vessel (6), wherein it is possible to lock the lid (10) in the closed position in relation to the cooking vessel (6), wherein, furthermore, the cooking vessel (6) has a base and a wall (12) extending upwards from the base, wherein the cooking-vessel wall (12) merges into a radially projecting cooking-vessel periphery (13), wherein, furthermore, the lid (10) has a periphery (16) which, in the closed position, coincides with the cooking-vessel periphery (13). The invention also relates to a vessel (6) with a lid (10). In order further to improve a food processor and/or a vessel of the type in question, in particular in respect of the lid-locking means, it is proposed that the locking means is formed from a locking part (17) which is intended for engaging over the lid (10) and, by rotation about an axis (y), can be displaced from a release position into the locking position and vice versa, wherein the locking part (17) is of elongate design in the direction in which the axis (y) extends.