Mandolin Slicer Ballpoint Ratchet Adjustment

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Solution Overview

Problem

Conventional mandolin slicers require two-handed operation to adjust slice thickness and lack clear indication of the selected thickness, making it difficult for users to achieve variable slice thicknesses and patterns.

Innovation Solution

A mandolin slicer featuring a ballpoint pen ratchet mechanism for one-handed adjustment of slice thickness, combined with an indicator system to clearly show the selected thickness, allowing for easy selection of various slice thicknesses and patterns using a linkage that pivots the guiding plate relative to the slicing blade.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an adjustment knob is used to adjust slice thickness, then variable slice thickness can be achieved, but two-handed operation is required and the operation becomes complex

Engineering Contradiction:
Improvevariable slice thicknessVSAvoidoperation complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional adjustment knob mechanism with a spring-loaded plunger system that uses spring force to automatically adjust and maintain the guiding plate position. This mechanical substitution eliminates the need for complex knob adjustment while achieving variable slice thickness through simple vertical movement of the plunger.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The spring-loaded plunger system is self-adjusting - when the user presses the plunger down, the spring compresses and automatically returns the plunger to its original position, thereby automatically adjusting the slice thickness without requiring manual intervention or complex operations.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If an adjustment knob is used to adjust slice thickness, then variable slice thickness can be achieved, but the device requires two-handed operation

Engineering Contradiction:
Improvevariable slice thicknessVSAvoidhands-free operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces the two-handed knob adjustment mechanism with a single-handed plunger press system. The user can operate the slicer with one hand by simply pressing the plunger, while the other hand can hold and guide the food item, enabling one-handed operation capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If no indication mechanism is provided, then the device structure remains simple, but the user cannot know the selected slice thickness

Engineering Contradiction:
Improvestructure simplicityVSAvoidslice thickness indication
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent uses color-coded indicators (different colors or markings) on the plunger or surrounding structure to indicate different slice thickness settings. This visual indication system allows users to quickly identify the selected thickness without adding complex mechanical indication mechanisms.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent creates visual copies or representations of the actual slice thickness through indicator markings that correspond to the plunger position. These markings serve as informational copies that convey the thickness setting without requiring the user to physically measure or estimate the gap.

Inventive Principle:
Principle #26Copying

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 convenient, one-handed adjustment of slice thickness and pattern selection with clear indication, improving user experience by simplifying the operation and ensuring accurate slicing thickness without the need for complex knob adjustments.

Implementation Method 1

a compression spring forced to move the ratchet upward

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a compression spring forced to move the ratchet upward

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 3

a ratchet connected to the compression spring, allowing movement in one direction only

Methodology Applied
Scientific EffectRatchet: Ratchet

Data Source

PatentEP2913164B1Mandolin Slicer
Publication Date: 2018.12.12 KINGS FLAIR DEV
  • EP2913164B1 patent drawingFigure 1
  • EP2913164B1 patent drawingFigure 2
  • EP2913164B1 patent drawingFigure 3

AI summary

The present invention provides a mandolin slicer adjustable for slicing item in variable thicknesses and variable shapes, wherein the adjustment is enabled by a ballpoint pen ratchet mechanism provided on the mandolin slicer. The mandolin slicer of the present invention further comprises an indicating mechanism to clearly indicate the selected thickness and shape of the sliced item.