Mandoline Slicer Lever Mechanism for Safe Adjustable Slicing

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Solution Overview

Problem

Existing food slicers lack safety features, flexibility in slice thickness adjustment, and customization options, particularly in terms of reversible blades and ergonomic design.

Innovation Solution

A mandoline slicer with a slice thickness adjustment mechanism using a lever and semi-annular inner gear, reversible slicing blades, a retractable leg assembly, and a safety cover, along with a carriage assembly that allows for safe and easy food handling without manual downward force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a stationary blade is used with manual sliding, then the device is simple in structure, but safety is poor and slice thickness adjustment is limited

Engineering Contradiction:
Improveuser safetyVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A carriage assembly with a food press plate is introduced as an intermediary between the user's hand and the slicing blade. The press plate engages the food item and moves it across the blade, eliminating direct contact between the user's hand and the dangerous blade area while maintaining simple manual operation

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The device is divided into distinct functional modules: a removable slicing blade, a separate carriage assembly with press plate, and a frame with guide rails. This segmentation allows the blade to be easily removed for safety when not in use, while the carriage assembly provides safe food handling during operation

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If fixed slice thickness is used, then the device is simple to manufacture, but adaptability to different slicing needs is poor

Engineering Contradiction:
Improveslice thickness adjustmentVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The slicing blade is made movable relative to the frame through a adjustment mechanism. The blade can be positioned at different heights along guide rails and locked in place, allowing dynamic adjustment of slice thickness while maintaining stability during the actual slicing operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment mechanism allows the desired slice thickness to be set before slicing begins. The blade position is predetermined and locked, ensuring consistent thickness throughout the slicing process without requiring continuous adjustment during operation

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If a single-sided blade is used, then the blade structure is simple, but customization options for different slice shapes are limited

Engineering Contradiction:
Improveslice shape customizationVSAvoidblade structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The blade is designed as a reversible structure with two different slicing edges. Each edge can be optimized for different slice shapes (e.g., straight cuts vs. julienne cuts), and the blade can be flipped to use the appropriate edge for the desired cutting style

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A single blade provides multiple functions through its reversible design. The same blade can perform different cutting operations by flipping it to use the other edge, eliminating the need for multiple specialized blades while maintaining versatility

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

4Reliability

If no protective cover is used, then the device structure is simpler, but safety during storage and transport is poor

Engineering Contradiction:
Improvesafety during storageVSAvoidoverall device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The protective cover is integrated with the carriage assembly rather than being a separate component. The cover attaches to the carriage and provides protection for the blade during storage and transport, combining safety functionality with an existing structural element

Inventive Principle:
Principle #5Merging (Combining)

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

Enhances user safety, flexibility in slice thickness adjustment, and customization, providing a safer and more versatile slicing experience with adjustable thickness and reversible blades.

Implementation Method 1

The slice thickness adjustment mechanism can include a semiannular inner gear operatively connected to the lever, and at least one screw member threadedly engaged in a threaded throughbore disposed in said frame and having a threaded body portion and a gear head portion; and wherein the gear head portion of the screw member meshes with said inner gear

Methodology Applied
Scientific EffectGear mechanism: Gear

Implementation Method 2

at least one screw member threadedly engaged in a threaded throughbore disposed in said frame and having a threaded body portion and a gear head portion

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 3

a slice thickness adjustment mechanism having a lever movable between a first position and a second position and configured to vary a vertical distance between the slicing edge of said slicing member and an edge of said first support plate

Methodology Applied
Scientific EffectLever mechanism: Lever

Data Source

PatentEP2497400B1Mandoline slicer
Publication Date: 2013.10.16 CONAIR CORP
  • EP2497400B1 patent drawingFigure 1~2
  • EP2497400B1 patent drawingFigure 3~4
  • EP2497400B1 patent drawingFigure 5~6

AI summary

A mandoline slicer 10 for slicing a food product, the slicer 10 comprising a frame 12 having opposed sidewalls 14,16, a first support plate 18 and a second support plate 20 positioned between the opposed sidewalls 14,16, a slicing member 22 having a slicing edge 58 positioned between the first and said second support plates 28,20, and a slice thickness adjustment mechanism 26 having a lever 80 movable between a first position and a second position and configured to vary a vertical distance between the slicing edge 58 of said slicing member 22 and an edge 42 of said first support plate 16.