Device for producing milk-based beverages provided with a delivery pipe, and coffee machine comprising such a device

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Solution Overview

Problem

Existing devices for producing milk-based beverages with coffee machines are cumbersome, requiring repositioning for different container sizes and relying on friction for positioning, which can lead to instability and inefficiency.

Innovation Solution

A device with a steam inlet duct and a dispensing duct featuring magnetic holding and positioning means that allow easy assembly and separation from the coffee outlet nozzle, along with a movable coffee outlet nozzle to adapt to container height, and a flexible distribution duct for versatile positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the distribution conduit is held in position by friction of a seal against the wall of a receiving housing, then the conduit can be easily positioned, but the positioning becomes unstable over time as friction deteriorates

Engineering Contradiction:
Improvepositioning easeVSAvoidpositioning stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the friction-based mechanical positioning system with a magnetic field-based retention system. The magnetic part or magnet at the end of the distribution conduit interacts with the receiving housing to provide stable positioning without relying on friction, thereby maintaining both ease of operation and reliability over time.

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

Solution Approach 2:

The patent changes the physical parameter of retention from frictional force to magnetic force. By introducing a magnetic part or magnet, the system transitions from a friction-dependent mechanical connection to a magnetic field-based connection, which maintains consistent retention force without deterioration.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If the dispensing duct has only one degree of rotational freedom, then the structure remains simple, but the end cannot be brought very close to the coffee outlet nozzle

Engineering Contradiction:
Improverotational freedomVSAvoiddistance to nozzle
Core Design Contradiction:
Device complexityVSLength of moving object

Solution Approach 1:

The patent makes the distribution conduit flexible rather than rigid, allowing it to dynamically adapt its position and orientation. This flexibility enables the conduit end to be brought close to the coffee outlet nozzle while maintaining a simple overall structure, as the conduit can bend and move as needed without requiring complex rotational mechanisms.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If the end of the distribution conduit is positioned directly above the container opening, then splashes are prevented, but the user must reposition for containers of different sizes

Engineering Contradiction:
Improvesplash preventionVSAvoidcontainer size adaptation
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The flexible distribution conduit allows dynamic positioning of its end to adapt to different container sizes and shapes. The conduit can be maneuvered to position its end directly above various container openings while preventing splashes, eliminating the need for fixed positioning mechanisms or manual repositioning for different container types.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The flexible conduit design provides universal adaptability to work with containers of various sizes and configurations. A single conduit design can serve multiple functions by being positioned differently, eliminating the need for multiple specialized positioning systems for different container types.

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

4Ease of operation

If a wide opening container is used to accommodate the dispensing duct, then the duct can be positioned, but the user cannot use containers with smaller openings

Engineering Contradiction:
Improveduct positioningVSAvoidcontainer size range
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The flexible distribution conduit can be maneuvered and positioned to fit various container opening sizes, from wide to narrow. Its flexibility allows it to adapt to different geometries, enabling the use of a wide range of container sizes while maintaining ease of positioning and operation.

Inventive Principle:
Principle #15Dynamics

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 easy and safe preparation of milk-based beverages in containers of varying sizes without tools, ensuring stable and efficient operation by allowing precise positioning and easy cleaning and storage.

Implementation Method 1

the means for retaining the end of the distribution conduit comprise a magnetic part or a magnet

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentEP2946707B1Device for producing milk-based beverages provided with a delivery pipe, and coffee machine comprising such a device
Publication Date: 2019.06.12 SEB SA
  • EP2946707B1 patent drawingFigure 1~3
  • EP2946707B1 patent drawingFigure 4~5
  • EP2946707B1 patent drawingFigure 6~7

AI summary

The invention relates to a device (30) for producing a milk-based beverage comprising a steam inlet duct (70) intended to cooperate with a steam outlet nozzle tip (2) of a coffee machine ( 1) and a distribution duct (73) for the milk-based beverage. According to the invention, the distribution duct (73) comprises a free end (36) provided with means for holding (37) and positioning (39) of said end (36) intended to cooperate with means for holding (12 ) and positioning (11) arranged on a coffee outlet nozzle (5) of the coffee machine (1), said means for holding (12, 37) and positioning (11, 39) making it possible to assemble or separate the end (36) of the distribution duct (73) of the coffee outlet nozzle (5) without using a tool.