Lockable adjustable blade assembly for food processor

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Solution Overview

Problem

Existing food processors lack an efficient mechanism to adjust the cutting thickness of food items, limiting user control over the thickness of sliced or chopped food products.

Innovation Solution

A food processor design that includes a rotating disk and a cutting blade assembly with a movable rotating disk, allowing for adjustable cutting thickness by varying the distance between the cutting blade and the rotating disk, facilitated by a locking mechanism and user-operated pin system for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the rotating disk is made movable to enable thickness adjustment, then user control over cutting thickness is improved, but device complexity increases due to additional locking mechanisms and positioning systems

Engineering Contradiction:
Improvecutting thickness adjustmentVSAvoidlocking mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The rotating disk is transformed from a fixed component to a movable one, allowing dynamic adjustment of cutting thickness. The disk can be positioned at multiple discrete locations along the blade's rotational path, enabling users to control slice thickness by rotating the disk to different positions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment mechanism is segmented into discrete positioning locations rather than continuous adjustment. The blade support structure includes multiple predetermined locations where the rotating disk can be locked, providing simple stepwise thickness control without requiring complex continuous adjustment mechanisms.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple adjustment positions are provided for the rotating disk, then cutting versatility is improved, but manufacturing complexity increases due to multiple locking positions and alignment requirements

Engineering Contradiction:
Improvecutting thickness optionsVSAvoidblade support manufacturing
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple adjustment positions are pre-established during manufacturing of the blade support structure. The support includes predetermined locations, grooves, or engagement features that guide and lock the rotating disk at specific positions, eliminating the need for complex adjustment mechanisms and simplifying both manufacturing and user operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2382903B1Lockable adjustable blade assembly for food processor
Publication Date: 2020.03.18 WHIRLPOOL CORP
  • EP2382903B1 patent drawingFigure 1
  • EP2382903B1 patent drawingFigure 2
  • EP2382903B1 patent drawingFigure 3

AI summary

A food processor includes a bowl with a removable lid. Food items are advanced into the bowl through a feed tube formed in the lid where they are cut by a blade assembly. A rotating disk is adjustable relative to the blade assembly to vary the thickness of the food items cut by the blade assembly. A user-operated pin is positioned below the rotating disk and is moveable between a first position in which the rotating disk is prevented from moving upwardly and downwardly, and a second position in which the rotating disk is permitted to move upwardly and downwardly.