Juice Squeezing Module with Side Injection Hole for Hand Safety

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Solution Overview

Problem

Conventional juicers pose safety risks due to small injection holes that can trap users' hands and require cutting fruits and vegetables into small pieces, and they can malfunction or break when using tools to insert materials.

Innovation Solution

A juice squeezing module with a side injection system featuring a hopper and guide protrusions to prevent hand insertion, a pressing rod for safe material insertion, and safety mechanisms to prevent accidental tool use and ensure proper coupling with the driving body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the injection hole is made small in conventional juicers, then safety is improved by preventing deep hand insertion, but the sectional area of the injection hole becomes small requiring materials to be cut into small pieces

Engineering Contradiction:
Improvehand insertion safetyVSAvoidinjection hole sectional area
Core Design Contradiction:
Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The injection hole is repositioned from the top surface to the side surface of the cap, changing the spatial dimension of material injection. This allows the injection hole to have a larger cross-sectional area while the vertical depth remains limited, preventing deep hand insertion while facilitating easier material placement

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

Instead of making the injection hole small to prevent hand insertion, the invention inverts the approach by making the injection hole large but positioning it on the side where the depth constraint naturally prevents deep insertion. The hopper structure is also inverted from a top-down design to a side-mounted design

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If tools are used to insert materials into the injection hole, then material insertion becomes easier, but the juicer may break or malfunction due to contact with the rotating screw

Engineering Contradiction:
Improvematerial insertion easeVSAvoidjuicer malfunction prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A pressing rod is introduced as an intermediary tool between the user and the material insertion process. The pressing rod is specifically designed to push materials into the injection hole without contacting the rotating screw, thereby maintaining ease of operation while preventing damage to the juicer components

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The function of material insertion is extracted from the main juicing mechanism by providing a separate pressing rod that operates independently. This allows material insertion to be performed without involving the rotating screw, preventing potential damage while maintaining operational ease

Inventive Principle:
Principle #2Taking out (Extraction)

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 module allows for larger injection holes without deep hand insertion risks, facilitates easier material injection, and prevents accidents by ensuring only the pressing rod is used for material insertion, enhancing safety and usability.

Implementation Method 1

a juice squeezing screw rotatably mounted at the inside of the juice squeezing drum and having screw spiral lines formed on the outer peripheral surface thereof

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

a screen drum mounted at the inside of the juice squeezing drum in such a manner as to surround the juice squeezing screw

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3158896B1Juice-extraction module for juicer
Publication Date: 2019.10.16 KIM JAE WON
  • EP3158896B1 patent drawingFigure 1
  • EP3158896B1 patent drawingFigure 2
  • EP3158896B1 patent drawingFigure 3

AI summary

The present invention relates to a juice squeezing module for a juicer, including: a juice squeezing drum open on the top surface thereof and having a juice discharging hole and a remnant discharging hole formed on the lower end periphery thereof; a juice squeezing screw rotatably mounted at the inside of the juice squeezing drum and having screw spiral lines formed on the outer peripheral surface thereof; a screen drum mounted at the inside of the juice squeezing drum in such a manner as to surround the juice squeezing screw; and a cap adapted to cover the top surface of the juice squeezing drum and having an injection tube protrudingly extended upward from a portion of the top thereof, the injection tube having an injection hole formed on the side surface thereof to inject extraction materials thereinto.