Horizontal Hook Mixing Bowl Layout for Leak-Resistant Dough Kneading

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Solution Overview

Problem

Existing household appliance mixing arrangements are inefficient for handling high viscosity ingredients, complex in construction, and time-consuming for assembly, disassembly, and cleaning, with issues related to leakage and ingredient sticking.

Innovation Solution

A mixing arrangement featuring a mixing container with a substantially horizontal axis of rotation, a hook with a sole attachment portion, and an oblate spheroid inner surface that reduces leakage and sticking, facilitating easy attachment and detachment, and a design that allows for unobstructed ingredient addition and efficient mixing and kneading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hook with multiple attachment portions and two shaft apertures is used, then the connection between hook and mixing container is strengthened, but the risk of leakage increases and assembly/disassembly becomes more time-consuming

Engineering Contradiction:
Improveconnection strengthVSAvoidassembly and disassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The invention extracts the attachment mechanism from the traditional multiple-aperture design and consolidates it into a single attachment portion with one shaft aperture. This simplification maintains the necessary connection strength while dramatically reducing assembly complexity and time, directly addressing the contradiction between reliability and time loss.

Inventive Principle:
Principle #2Taking out (Extraction)

2Shape

If a vertically arranged hook with vertical rotation axis is used, then the mixing arrangement is compact, but the center of gravity is high and accessibility for ingredient addition is limited

Engineering Contradiction:
Improvecompact arrangementVSAvoidaccessibility and stability
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The invention inverts the traditional vertical rotation axis configuration by implementing a horizontal rotation axis. This inversion lowers the center of gravity to the bottom of the mixing container, significantly improving stability and making the appliance less top-heavy. The open top design resulting from this inversion also greatly enhances accessibility for adding ingredients.

Inventive Principle:
Principle #13The other way round (Inversion)

3Reliability

If a complex attachment mechanism with multiple shaft apertures is used, then the hook is securely attached, but cleaning and maintenance become more difficult

Engineering Contradiction:
Improveattachment securityVSAvoidcleaning and maintenance ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention segments the attachment mechanism into a single, isolated attachment portion with one shaft aperture, rather than having multiple apertures distributed throughout the hook structure. This segmentation creates fewer crevices and surfaces that could trap food residues, making cleaning and maintenance significantly easier while preserving attachment security.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3164007B1Household appliance mixing arrangement
Publication Date: 2018.09.12 AB ELECTROLUX
  • EP3164007B1 patent drawingFigure 1
  • EP3164007B1 patent drawingFigure 2
  • EP3164007B1 patent drawingFigure 3

AI summary

A household appliance mixing arrangement (1) is provided. The household appliance mixing arrangement (1) comprises a mixing container (2) with an inner surface (2a) and an open top (2b), a drive arrangement (6) and a hook (3). The hook (3) comprises a sole attachment portion (4) which, when attached to the drive arrangement (6), abuts a first inner surface portion (2c) of the mixing container inner surface (2a). The sole attachment portion (4) is attachable to the drive arrangement (6) via a through hole (2e) in the first inner surface portion (2c) such that the hook (3) is rotatable around a substantially horizontal axis of rotation (A) within the mixing container (2) when the hook (3) is attached to the drive arrangement (6).