Splash guard for a stand mixer

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Solution Overview

Problem

Existing pouring shields for stand mixers are cumbersome, difficult to remove, and require multiple sizes to accommodate various bowl sizes, often leading to food spills due to their design and limited compatibility with different bowl sizes.

Innovation Solution

A lightweight, easy-to-use pouring shield with a flexible rubberized liner that friction-fits onto the mixer head, featuring a conical body and oversized seal member to securely attach to various bowl sizes, preventing spills and accommodating planetary mixer action.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a pouring shield with a large central opening is used to accommodate planetary action, then mixing operation is enabled, but food spills increase

Engineering Contradiction:
Improvemixing operationVSAvoidfood spills
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The pouring shield is divided into multiple size variants (small, medium, large) with different opening dimensions. Each size is optimized for specific bowl sizes and mixing operations, allowing users to select the appropriate shield for their needs rather than using a single large opening shield for all purposes.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If pouring shields are designed for specific bowl sizes, then spill protection is improved, but compatibility with various bowl sizes decreases

Engineering Contradiction:
Improvespill protectionVSAvoidcompatibility with bowl sizes
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The pouring shield design incorporates a flexible rubberized liner that can adapt to different bowl sizes and shapes. The liner elasticizes to conform to the specific bowl geometry, allowing a single shield design to work universally across multiple bowl sizes while maintaining effective spill protection.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If pouring shields are made secure to prevent spills, then spill protection is improved, but ease of removal decreases

Engineering Contradiction:
Improvespill protectionVSAvoidease of removal
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The pouring shield employs a dynamic mounting system where the flexible rubberized liner provides friction fit during operation for secure attachment, but allows easy removal when needed. The elastic properties enable the liner to grip the bowl rim during mixing while permitting straightforward installation and removal by the user.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If multiple sizes of pouring shields are provided, then compatibility with various bowl sizes is improved, but device complexity increases

Engineering Contradiction:
Improvecompatibility with bowl sizesVSAvoidnumber of pouring shield sizes
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Rather than providing multiple discrete pouring shield sizes, the invention changes the parameter of the rubberized liner's flexibility and elastic properties. This allows a single pouring shield design to accommodate various bowl sizes through material deformation and conformation, reducing the number of separate components needed while maintaining versatility.

Inventive Principle:
Principle #35Parameter changes

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 solution provides effective spill protection across multiple bowl sizes without the need for multiple pouring shields, ensuring easy installation and removal while maintaining operational efficiency and versatility.

Implementation Method 1

a flexible rubberized liner that friction-fits onto the mixer head

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a flexible rubberized liner that friction-fits onto the mixer head

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3090669B1Splash guard for a stand mixer
Publication Date: 2021.07.14 WHIRLPOOL CORP
  • EP3090669B1 patent drawingFigure 1
  • EP3090669B1 patent drawingFigure 2
  • EP3090669B1 patent drawingFigure 3

AI summary

A pouring shield (60) for a stand mixer (10) includes an upper collar (62) for mounting to a mixer head (12) of the stand mixer (10) in a friction-fit manner without the need for clamps or other mounting accessories. The stand mixer (10) is configured to receive a mixing bowl (40) with an open top (51), and the pouring shield (60) is configured to cover the open top (51) of the mixing bowl (40) at an upper rim (50) of the mixing bowl (40) using a seal member (66) which is disposed around an outer perimeter (81) of the pouring shield (60). The seal member (66) is a flexibly resilient member configured to close the open top (51) of the mixing bowl (40) when the stand mixer (10) is in a closed position (A), and includes a wide sealing surface (92) for accommodating mixing bowls (100, 106, 112) of various sizes (C1-C3).