Pivoting Beverage Outlet for Splash-Free Coffee Machine Cleaning

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Fully automatic coffee machines face challenges in cleaning cycles, including splashing and evaporating cleaning solutions, unsightly visual impressions, and the need for manual collection containers, which can lead to irritation and damage.

Innovation Solution

The beverage outlet is pivoted horizontally into the housing during cleaning, allowing solutions to be released directly into the drip tray, eliminating splashing and evaporation risks, and enabling automated or semi-automated cleaning without the need for external collection containers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the beverage outlet is positioned vertically above the drip tray for normal operation, then the drink can be dispensed properly into collection containers, but cleaning solutions splash and evaporate during cleaning cycles, causing safety hazards and unpleasant visual impressions

Engineering Contradiction:
Improvedrink dispensing functionVSAvoidsplash and evaporation of cleaning solutions
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The beverage outlet is made movable rather than fixed, allowing it to change position between vertical (for drink dispensing) and horizontal/retracted (for cleaning). This dynamic repositioning eliminates the harmful effects during cleaning while maintaining proper dispensing function during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The outlet is designed to asymmetrically reposition into the housing front during cleaning, creating an asymmetric configuration that directs cleaning solutions inward rather than outward toward the user, thereby eliminating splash and evaporation hazards.

Inventive Principle:
Principle #4Asymmetry

2Ease of operation

If the beverage outlet is extended outward for easy access during operation, then the outlet is easily accessible, but the distance from the drip tray increases, greater risk of splashing cleaning solutions

Engineering Contradiction:
Improveoutlet accessibilityVSAvoidsplash risk during cleaning
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The outlet dynamically adjusts its position based on operational mode: extended outward during drink dispensing for accessibility, and retracted into the housing during cleaning to minimize splash risk. This resolves the contradiction by making the outlet position adaptive rather than static.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If manual collection containers are used during cleaning cycles, then cleaning solutions can be contained, but additional packaging is required, increasing cost and complexity

Engineering Contradiction:
Improvecontainment of cleaning solutionsVSAvoidpackaging requirements
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The beverage outlet itself serves as the containment mechanism during cleaning by repositioning into the housing front, directing solutions into the drip tray. This eliminates the need for external collection containers, reducing packaging requirements and device complexity while maintaining effective containment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The beverage outlet performs multiple functions: it dispenses drinks during operation and simultaneously serves as a containment structure during cleaning by repositioning. This multi-functionality eliminates the need for separate collection containers, reducing overall system complexity.

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

Data Source

PatentEP2548481B1Beverage machine with a beverage disposal
Publication Date: 2014.04.02 BSH HAUSGERATE GMBH
  • EP2548481B1 patent drawingFigure 1~2
  • EP2548481B1 patent drawingFigure 3~4
  • EP2548481B1 patent drawingFigure 5

AI summary

The beverage dispenser has a housing front beverage outlet (1) provided with an outlet (2) for beverage, and another outlet for providing water, steam, milk and/or milk froth. The beverage outlet is pivotably mounted about an axis parallel to the housing front extending horizontal axis and pivoted into a cleaning position in the housing front.