Modular hand-held kitchen applicance

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Solution Overview

Problem

Existing modular hand-held kitchen appliances lack versatility and safety features for tasks beyond mixing and blending, particularly in coffee grinding and can opening, where traditional appliances are bulky and pose injury risks.

Innovation Solution

A modular system with a universal powerhead that includes attachments for a coffee grinder with a safety mechanism to prevent blade operation unless the cup is securely attached and a side-cutting can opener that reduces jagged edges, both designed for efficient operation with the powerhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional separate appliances are used for coffee grinding and can opening, then each task can be performed reliably, but the user needs to own multiple bulky appliances and the kitchen space is consumed

Engineering Contradiction:

ImproveversatilityVSAvoidappliance volume

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The powerhead is designed as a universal motor unit that can attach to multiple different kitchen appliance attachments including coffee grinder, can opener, food processor, and other attachments. This allows a single base unit to perform multiple kitchen functions, replacing the need for multiple separate appliances and reducing overall kitchen appliance volume.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system is divided into a separate powerhead unit and detachable attachment units. Each attachment can be independently designed for its specific function, and they can be stored separately when not in use. This segmentation allows the main powerhead to remain compact while providing access to multiple functions through attachment swapping.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If a blade is exposed for coffee grinding, then the grinding function is available, but the user is at risk of injury from the exposed blade

Engineering Contradiction:

Improvegrinding accessibilityVSAvoidinjury risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The attachment design includes safety features that prevent the blade from rotating unless the cup is properly secured to the powerhead. The electrical connection is established only when the attachment is correctly positioned and locked in place, which inherently protects the user by ensuring the blade is enclosed before operation begins.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The cup acts as an intermediary protective element between the user and the blade. The cup must be properly attached to the powerhead before the blade can operate, and the cup's position and secure attachment serve as a mechanical intermediary that ensures user safety while allowing blade operation when conditions are safe.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If a top cutting can opener is used, then the can opening function is achieved, but the cut edges are jagged and less smooth

Engineering Contradiction:

Improvecan opening speedVSAvoidcut smoothness

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

Instead of cutting the can from the top down (traditional approach), this can opener attachment cuts from the side of the can. The blade is positioned to slice through the can body laterally, which produces smoother edges and reduces the jaggedness associated with top-cutting methods while maintaining efficient can opening capability.

Inventive Principle:

Principle #13The other way round (Inversion)

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 modular system provides a versatile and safe solution for various kitchen tasks, enhancing user safety and reducing the need for multiple appliances by ensuring the coffee grinder operates only when the cup is securely attached and the can opener produces smooth cuts, thus minimizing injury risks and appliance redundancy.

Implementation Method 1

The powerhead and exemplary attachments, such as a grinder and wine opener, are described in application Ser. No. 17/167,150

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a coffee grinder is attachable to the powerhead and has a spinning blade that grinds coffee beans

Methodology Applied

Scientific EffectMechanical abrasion: Abrasion

Implementation Method 3

The can opener is a side cutting unit that slices through the side of the can just underneath the lip of the lid

Methodology Applied

Scientific EffectMechanical cutting: Fracture Mechanics

Data Source

PatentUS20250098900A1Modular hand-held kitchen applicance

Publication Date: 2025.03.27 BLACK & DECKER CORP

AI summary

The present invention is directed to a hand-held modular kitchen multitool having a universal powerhead capable of being used with a variety of kitchen appliance attachments, such as a can opener and a coffee grinder. The can opener is a side cutting can opener which provides a more compact size and smoother cut. The coffee grinder has a rotating blade that's only operational when enclosed by a cup and assembled with the powerhead. This prevents unintentional operation and injury to the user.