Electrical kitchen appliance comprising an intermediate cover
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Solution Overview
Problem
Existing household food preparation appliances lack ergonomic design, simplicity in construction, and safety features, particularly in the locking mechanism of the upper motorized box and intermediate cover, which complicates user interaction and device operation.
Innovation Solution
A household food preparation appliance design featuring a working receptacle with a rotary accessory driven by an upper motorized box, where the intermediate cover is locked in rotation with the receptacle and the upper motorized box is secured using attachment members with elastic return elements, allowing for easy assembly and disassembly, and a locking mechanism that prevents accidental removal of the upper motorized box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper motorized housing is simply placed on the intermediate cover without a locking mechanism, then the construction remains simple, but the upper motorized housing can be accidentally removed by lifting
Solution Approach 1:
The latching member is designed to automatically engage with the retaining member when the upper motorized housing is placed on the intermediate cover, without requiring manual intervention. The elastic return element provides automatic resetting action, making the locking mechanism self-operating and thus reliable without adding complex control systems.
Solution Approach 2:
The elastic return element acts as an intermediary between the latching member and the retaining member, providing the necessary force to engage and disengage the locking mechanism. This intermediary component simplifies the overall design by using elastic energy storage and release rather than requiring active control systems.
2Reliability
If the upper motorized housing is locked with multiple attachment members and retaining members, then the locking becomes secure, but the assembly and disassembly process becomes complex
Solution Approach 1:
The latching member is designed to be movable rather than fixed, allowing it to flex during the engagement and disengagement process. This dynamic design enables secure locking when engaged, while allowing easy release when force is applied to the release member, thus maintaining both security and ease of operation.
Solution Approach 2:
The locking mechanism is segmented into distinct functional components: attachment members on the upper motorized housing, retaining members on the intermediate cover, latching members that provide the locking action, and a release member for disengagement. This segmentation allows each component to perform its specific function efficiently, simplifying the overall operation despite the multi-component system.
3Stability of the object's composition
If the intermediate cover is prevented from rotating relative to the work container, then the positioning becomes stable, but the attachment mechanism becomes more complex
Solution Approach 1:
The attachment members and retaining members are positioned asymmetrically on their respective components, creating a unique engagement geometry that prevents rotation. The chamfered surfaces are oriented at specific angles that guide the assembly process and provide inherent anti-rotation capability, eliminating the need for additional rotational restraint mechanisms.
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 design enhances user ergonomics, simplifies construction, and improves safety by allowing for easy attachment and detachment of components, ensuring secure locking and preventing accidental removal of the upper motorized box, while maintaining a robust and simple construction.
Implementation Method 1
mounted movably in a plane mainly perpendicular to the axis of rotation against an elastic return element
Data Source
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AI summary
- The invention relates to a household appliance for food preparation comprising a working receptacle (2), a rotating working accessory, an upper motorized box (4) placed on the working receptacle (2) to rotate the rotary work along an axis of rotation, the upper motorized box (4) being arranged on an intermediate cover (3) carried by the working receptacle (2). - According to the invention, the upper motorized housing (4) comprises at least one attachment member (70), the intermediate cover (3) comprises at least one retaining member (76), and the attachment member ( 70) comes into engagement with the retainer (76) when the upper motorized box (4) is placed on the intermediate cover (3) in a direction mainly parallel to the axis of rotation, to lift the intermediate cover (3) with the upper motorized box (4) when the upper motorized box (4) is removed from the working vessel (2).