Brewing Chamber Locking Mechanism for High-Pressure Sealing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing brewing apparatuses face challenges in maintaining a secure, leak-proof brewing chamber under high extraction pressure, as the toggle lever joint absorbs all the force, leading to complexity and high costs, while also requiring a high level of sealing to produce high-quality beverages efficiently.

Innovation Solution

A brewing apparatus with a separate locking mechanism that absorbs part of the high extraction pressure, reducing the load on the drive mechanism and enhancing the sealing efficiency, allowing for a more stable and cost-effective design by using a toggle lever joint, gear rack, or pivot gear drive mechanism, along with a latch or roller-shaped locking mechanism for user-friendly operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a toggle lever joint is used to close the brewing chamber, then the brewing chamber can be formed, but the high extraction pressure must be absorbed solely by the toggle lever joint, leading to complexity and high costs

Engineering Contradiction:
Improvesealing of brewing chamberVSAvoidcomplexity of toggle lever joint
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The force absorption function is segmented between two components: the drive mechanism (toggle lever joint) responsible for closing the brewing chamber, and a separate locking mechanism responsible for absorbing extraction pressure. This segmentation allows each component to be optimized for its specific function, reducing the complexity of the toggle lever joint while maintaining reliable sealing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A locking mechanism acts as an intermediary component between the drive mechanism and the brewing chamber. This locking mechanism absorbs the high extraction pressure forces, thereby protecting the toggle lever joint from excessive loads and reducing its complexity requirements while ensuring reliable chamber sealing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a toggle lever joint absorbs all extraction pressure, then the brewing chamber can be sealed, but production and material costs increase

Engineering Contradiction:
Improvetightness of brewing chamberVSAvoidproduction and material costs
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The system is divided into a drive mechanism for closing and a separate locking mechanism for pressure absorption. This allows the toggle lever joint to be simpler and less expensive, while the locking mechanism is specifically designed for force absorption, optimizing overall cost-effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism uses simpler, more cost-effective components (such as latches or rollers) compared to a robust toggle lever joint designed to withstand all forces. This substitution reduces material costs and production expenses while maintaining the required tightness.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If the toggle lever joint is simplified to reduce costs, then production costs decrease, but the sealing reliability of the brewing chamber deteriorates

Engineering Contradiction:
Improveproduction and material costsVSAvoidsealing of brewing chamber
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The locking mechanism serves as an intermediary that handles the high extraction pressure forces, allowing the toggle lever joint to be simplified for cost reduction. The locking mechanism ensures that even with a simpler drive mechanism, the brewing chamber maintains reliable sealing by absorbing the forces that would otherwise compromise the seal.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

By separating the closing function from the pressure absorption function, the system allows the toggle lever joint to be simplified and cheaper, while the dedicated locking mechanism ensures sealing reliability is maintained through specialized force absorption.

Inventive Principle:
Principle #1Segmentation

4Reliability

If a robust toggle lever joint is used to ensure sealing, then brewing chamber tightness improves, but the device complexity and costs increase

Engineering Contradiction:
Improvetightness of brewing chamberVSAvoidcomplexity of drive mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The force absorption and sealing functions are segmented from the drive mechanism and assigned to a separate locking mechanism. This allows the toggle lever joint to be simpler and less complex, while the locking mechanism is specifically designed to handle extraction pressure forces, maintaining tightness without increasing overall device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism acts as an intermediary component that absorbs extraction pressure forces, thereby protecting the drive mechanism from high loads. This intermediary function allows the use of a simpler, less complex toggle lever joint while maintaining reliable brewing chamber sealing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10045653B2Brewing apparatus and method for operating a brewing apparatus
Publication Date: 2018.08.14 EUGSTER FRISMAG AG
  • US10045653B2 patent drawing
  • US10045653B2 patent drawing
  • US10045653B2 patent drawing

AI summary

The present invention relates to a brewing apparatus for extracting a portion capsule, comprising a first brewing chamber element and a second brewing chamber element, the first and/or the second brewing chamber element being movable along an axial direction from a loading position, in which the first and the second brewing chamber element are spaced apart from one another, to an extraction position, in which the first and the second brewing chamber element form a substantially closed brewing chamber, and the brewing apparatus further comprising a drive mechanism for moving the first and/or second brewing chamber element, characterized in that the brewing apparatus has a separate locking mechanism for locking the brewing chamber in the extraction position.