Automatic beverage machine and method for operating an automatic beverage machine of this kind

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Solution Overview

Problem

Existing drinks vending machines face issues with syrupy beverage components adhering to outlets, leading to taste contamination and mechanical complexity in cleaning, with a lack of efficient drip catchers and simple cleaning mechanisms.

Innovation Solution

A drinks machine with a pivotable trough under the outlet allows for easy cleaning by moving the trough between positions to catch and remove residues, using rinsing liquids and steam or air for effective cleaning, and includes a drip pan for safe liquid collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If a mechanical cleaning mechanism is provided to clean the outlet, then the outlet can be cleaned, but the device complexity increases and requires additional components like milk supply containers

Engineering Contradiction:
Improveoutlet cleaning capabilityVSAvoidcleaning mechanism complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The invention extracts the cleaning function from complex mechanical mechanisms and implements it through a simple movable trough that can be positioned to receive cleaning liquid. The trough is separated from the outlet structure and can be independently moved into cleaning position, eliminating the need for complex integrated cleaning mechanisms.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The movable trough acts as an intermediary element between the cleaning liquid source and the outlet. Instead of directly applying cleaning mechanisms to the outlet, the trough receives cleaning liquid and uses it to clean the outlet surface, simplifying the overall cleaning system.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If syrupy beverage components are dispensed through the outlet, then the machine can dispense concentrated beverage components, but residues adhere to the outlet edges and contaminate subsequent drinks

Engineering Contradiction:
Improvebeverage dispensing capabilityVSAvoidtaste contamination from residues
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The invention implements preliminary cleaning action by providing a movable trough that can be positioned under the outlet to catch and remove residues before they contaminate subsequent beverages. The trough can be moved into position during or between dispensing operations to prevent residue buildup.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention converts the harmful adhesive property of syrupy residues into a beneficial cleaning opportunity. By providing a movable trough that can be positioned to receive cleaning liquid, the system uses the presence of residues as an indicator to activate the cleaning function, transforming the contamination problem into a triggered cleaning action.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If a drip catcher is provided under the outlet, then liquid can be caught when the machine is not dispensing, but the mechanical structure becomes complex and space is consumed

Engineering Contradiction:
Improveliquid catching capabilityVSAvoiddrip catcher structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention applies dynamics by making the trough movable rather than fixed. The trough can be moved between a dispensing position (out of the way during beverage dispensing) and a cleaning position (under the outlet to catch liquid and residues). This dynamic positioning eliminates the need for complex fixed mechanical structures while maintaining liquid catching capability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movable trough serves multiple functions: it acts as a drip catcher during non-dispensing periods, a collection vessel during cleaning operations, and can be positioned to prevent residue buildup. This multi-functionality eliminates the need for separate dedicated components for each function, reducing overall device complexity.

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

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 solution simplifies the cleaning process, prevents residue buildup, and ensures the outlet is cleaned externally, maintaining taste quality and reducing mechanical complexity, while allowing for automated cleaning and space-efficient design.

Implementation Method 1

a trough being arranged in the area of the outlet, which can be moved between a first position, in which the prepared drink or the stored component can pass unhindered from the spout into a vessel underneath, and a second position in which the trough accommodates at least a lower part of the spout

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

using rinsing liquids and steam or air for effective cleaning

Methodology Applied
Scientific EffectFluid flow:

Implementation Method 3

using rinsing liquids and steam or air for effective cleaning

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 4

using rinsing liquids and steam or air for effective cleaning

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP2978346B1Automatic beverage machine and method for operating an automatic beverage machine of this kind
Publication Date: 2017.08.16 SCHAERER AG
  • EP2978346B1 patent drawingFigure 1
  • EP2978346B1 patent drawingFigure 2
  • EP2978346B1 patent drawingFigure 3

AI summary

An automatic beverage machine (50) comprises a downwardly directed outlet (51) for dispensing a beverage which has been prepared in the automatic beverage machine (50) and/or for dispensing a component of a beverage, which component has been stored in the automatic beverage machine (50), into a vessel (56) which is situated beneath said outlet. Simple automatic cleaning is made possible by virtue of a trough (43) being arranged in the region of the outlet (51), it being possible for said trough to move to and fro between a first position, in which the prepared beverage or the stored component can pass without obstruction from the outlet (51) into a vessel (56) which is situated beneath said outlet, and a second position, in which the trough (43) accommodates at least a lower part of the outlet (51).