Mobile kitchen appliance

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Solution Overview

Problem

Existing mobile, freestanding kitchen appliances lack efficient mechanisms for easy relocation and stable positioning on various surfaces, particularly on inclined or uneven terrain, compromising ease of use and stability.

Innovation Solution

The kitchen appliance features a base with non-slip and sliding feet, where the non-slip foot is positioned behind the center of gravity to facilitate easy lifting and movement, while the sliding foot ensures stability on varying surfaces, and interchangeable caps enhance slip resistance or sliding properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the kitchen appliance has all non-slip feet for stable positioning, then stability on inclined surfaces is improved, but difficulty in relocation increases

Engineering Contradiction:
Improvestability on inclined surfacesVSAvoidease of relocation
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent applies different foot characteristics to different locations: non-slip feet are positioned at the front and rear of the base to provide stability, while a sliding foot is positioned at the side to facilitate easy relocation. This local differentiation allows the appliance to simultaneously achieve stable positioning on inclined surfaces and easy relocation by the user.

Inventive Principle:
Principle #3Local quality

2Stability of the object's composition

If the center of gravity is positioned at the front of the base for stable operation, then operational stability is improved, but effort required for lifting increases

Engineering Contradiction:
Improveoperational stabilityVSAvoideffort for lifting
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent creates an asymmetric weight distribution by positioning the center of gravity in the rear half of the base rather than at the center or front. This asymmetric positioning, combined with the strategic placement of a sliding foot at the side behind the center of gravity, creates a lever advantage that reduces the effort required for lifting while maintaining operational stability during use.

Inventive Principle:
Principle #4Asymmetry

3Ease of operation

If the sliding foot is positioned at the front of the base for easy lifting, then relocation effort is reduced, but stability on uneven surfaces deteriorates

Engineering Contradiction:
Improverelocation effortVSAvoidstability on uneven surfaces
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent segments the base support system into multiple specialized feet: non-slip feet at the front and rear for stability, and a sliding foot at the side for relocation. This segmentation allows each foot to perform its specific function optimally - the sliding foot facilitates easy lifting and movement without compromising the stability provided by the non-slip feet positioned at strategic locations.

Inventive Principle:
Principle #1Segmentation

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

Enables easy relocation and secure positioning on different surfaces, enhancing user convenience and stability by minimizing effort required for movement and preventing accidental slipping.

Implementation Method 1

The non-slip base of a non-slip foot can be made of a non-slip material such as an elastomer or another plastic with a high coefficient of friction compared to POM or PE-UHMW. In contrast, a non-slip base of a sliding foot can be made of a low-friction material such as POM, glass fiber-reinforced POM, or PE-UHMW.

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4643731A1Mobile kitchen appliance
Publication Date: 2025.11.05 VORWERK & CO INTERHOLDING GMBH
  • EP4643731A1 patent drawingFigure 1~3
  • EP4643731A1 patent drawingFigure 4~5
  • EP4643731A1 patent drawing

AI summary

The invention relates to an electric kitchen appliance (1, 33) with a base (2), with feet (3, 6) on the underside of the base (2) for placing the kitchen appliance (1) on a flat surface, wherein the feet (3) end in a plane (4) below the base (2), characterized in that one foot (3) is non-slip and another foot is a sliding foot (6).