Horizontal Capsule Brewer Piercing for Clean Bottom Cutting

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Solution Overview

Problem

Existing horizontal units for making beverages using capsules with powdered food substances face challenges in effectively perforating the bottom of plastic capsules, leading to deformation rather than a clean cut, which affects the quality of the beverage extraction process.

Innovation Solution

A horizontal unit design featuring a mobile perforating element that makes a linear cut in the capsule bottom, utilizing a blade that is actively positioned during capsule insertion and retracted during operation, ensuring precise piercing and efficient beverage extraction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a fixed piercing spike is used to pierce the capsule bottom during unit closing, then the piercing function is achieved, but the capsule bottom deforms instead of being cleanly cut, especially with plastic capsules

Engineering Contradiction:
Improvepiercing precisionVSAvoidcapsule deformation
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The piercing element is made mobile rather than fixed, allowing it to be positioned only when needed during capsule insertion and retracted during operation. This dynamic positioning enables clean piercing of plastic capsules without the element interfering with the capsule bottom during the closing phase, thus preventing deformation while maintaining piercing precision.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If a mobile blade is used to pierce the capsule bottom, then clean cutting is achieved, but the device complexity increases and production costs rise

Engineering Contradiction:
Improvecut qualityVSAvoidpiercing mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mobile piercing element serves multiple functions: it acts as a piercing blade during capsule insertion to create clean cuts in plastic capsules, and then is retracted to become inactive during the closing and extraction phases. This multi-functionality allows a single element to provide both clean cutting capability and non-interference operation, reducing overall device complexity compared to having separate mechanisms for different phases.

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

3Reliability

If the piercing element remains in position during operation, then the piercing function is maintained, but it interferes with the beverage extraction process

Engineering Contradiction:
Improvepiercing reliabilityVSAvoidextraction process smoothness
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The piercing element dynamically changes position based on operational phase: it is active and positioned to pierce the capsule bottom during insertion, then is retracted to an inactive position during closing and extraction. This ensures reliable piercing when needed while eliminating interference with the beverage extraction process, maintaining both piercing reliability and extraction smoothness.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10143329B2Horizontal unit for making beverages using capsules containing powdered food substances
Publication Date: 2018.12.04 CAFFITAL SYST SPA
  • US10143329B2 patent drawing
  • US10143329B2 patent drawing
  • US10143329B2 patent drawing

AI summary

A horizontal unit for making beverages includes a first part (4) and a second part (6) which are mobile between an operating position in which between them they form a chamber (8) for a capsule (2), and a capsule (2) insertion position in which they are separated. A beverage collection portion (14) includes a perforating element (44) mobile between an active position in which it perforates a capsule (2), and an inactive position. A hooking portion (46) is switchable between a hooking configuration in which it retains the perforating element in the active position and an unhooking configuration. During a movement of the first part and/or the second part from the insertion position to the operating position, the second part switches the hooking portion from the hooking configuration to the unhooking configuration, whilst during an opposite movement the second part moves the perforating element from the inactive position to the active position.