Adjustable Milk Dispenser Linkage for Two-Cup Cappuccino Service

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Solution Overview

Problem

Traditional milk containers for coffee machines lack versatile adjustment mechanisms, limiting their ability to accommodate cups of different heights and preventing simultaneous dispensing into multiple cups, thereby reducing coffee machine productivity.

Innovation Solution

A milk container with a movement mechanism that allows the external milk dispenser to be adjusted in a single degree of freedom, maintaining a perpendicular orientation, enabling precise dispensing into cups of varying heights and allowing simultaneous dispensing into two cups, featuring an articulated parallelogram mechanism and quick release means for easy adjustment and cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a complex movement mechanism is used to adjust the milk dispenser position, then the adaptability to different cup heights is improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different cup heightsVSAvoidmovement mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The milk dispenser is made dynamically adjustable through a movement mechanism that allows vertical translation along a guide rail. The dispenser can be positioned at different heights to accommodate various cup sizes, and the mechanism includes a locking system to maintain the selected position. This dynamic adjustability resolves the contradiction by providing versatility without requiring an overly complex mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movement mechanism is segmented into discrete components: a guide rail for vertical movement, a movable dispenser assembly, and a locking mechanism. This segmentation allows each component to perform its specific function efficiently, reducing overall complexity while maintaining adaptability to different cup heights.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the milk dispenser position is fixed, then the device complexity is reduced, but the productivity is worsened due to inability to prepare multiple cappuccinos simultaneously

Engineering Contradiction:
Improveability to prepare multiple cappuccinos simultaneouslyVSAvoidmovement mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The milk dispenser is designed with multi-functionality, serving both single-cup and multi-cup operations. By enabling vertical adjustment, the same dispenser can serve different cup heights and configurations, allowing the machine to prepare multiple cappuccinos simultaneously with different cup sizes without requiring separate dispensers for each function.

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

Solution Approach 2:

The dynamic positioning capability allows the dispenser to be quickly adjusted between different operational modes. The movement mechanism enables the dispenser to reach optimal positions for various cup configurations, thereby improving productivity for multi-cup operations while maintaining a relatively simple mechanical structure.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the milk dispenser orientation is changed to adapt to different cup positions, then the adaptability is improved, but the manufacturing precision required increases

Engineering Contradiction:
Improveadaptability to different cup positionsVSAvoiddispenser orientation precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

Instead of changing the dispenser orientation, the invention uses dynamic vertical translation to adapt to different cup positions. The dispenser maintains a fixed vertical orientation perpendicular to the base, and adaptability is achieved by moving the dispenser to different heights along the guide rail, thereby avoiding the need for complex orientation adjustments and high manufacturing precision for angular positioning.

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

The solution enhances the coffee machine's productivity by enabling the dispensing of two cappuccinos simultaneously into cups of different heights, improving adaptability and reducing human error through intuitive stopping mechanisms.

Implementation Method 1

heats the milk through a controlled flow of steam

Methodology Applied
Scientific EffectSteam heating: Condensation

Implementation Method 2

emulsifies it through a controlled flow of air

Methodology Applied
Scientific EffectAir emulsification: Emulsion

Implementation Method 3

the milk can be directed precisely due to the force of gravity straight into the underlying cups

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP3166454B1Milk container that can be associated with a coffee machine and coffee machine having such a milk container
Publication Date: 2018.03.07 DE LONGHI APPLIANCES SRL
  • EP3166454B1 patent drawingFigure 1
  • EP3166454B1 patent drawingFigure 2
  • EP3166454B1 patent drawingFigure 3

AI summary

The milk container (2) that can he associated with a coffee machine, comprises: a containment body (9) for containing milk; a mixing unit (10) for mixing milk with air and steam; an external dispenser (11) of the mixed milk; and a movement mechanism (20) for moving the external dispenser (11) configured and disposed to subject the external dispenser (11) to a combined movement for lifting it with respect to a resting surface (5) and distancing it from the containment body (9) without changing its own angular orientation.