Espresso Infusion Chamber Lever Mechanism for Easy Capsule Loading
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Solution Overview
Problem
Existing coffee machine systems for cartridge or capsule type ground coffee packaging require improvements in practicality, particularly in the mobility and accessibility of the infusion chamber for easy loading, sealing, and ejection, as existing lever systems are not optimized for these applications.
Innovation Solution
A device combining rotational and translational mobility of the infusion chamber's movable part, driven by a lever system with a sliding pivot connection, allowing for a single lever operation to perform all necessary movements, including vertical displacement and angular orientation for efficient loading and ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional lever system is used to drive the movable part of the infusion chamber, then the structure is simple, but the vertical movement and angular orientation are limited, reducing accessibility for loading and ejection
Solution Approach 1:
The patent introduces a second rotational axis (axis B) in addition to the traditional lever rotation axis (axis A), enabling the movable part to rotate both horizontally (around axis A) and vertically (around axis B). This two-dimensional rotational capability transforms the single-axis lever system into a multi-axis mechanism, dramatically improving accessibility for loading cartridges and ejecting spent ones, while the sliding pivot connection maintains structural simplicity.
Solution Approach 2:
The movable part is designed with dynamic rotational capabilities around two different axes, allowing it to adapt its orientation freely during operation. The sliding pivot connection enables smooth transitions between rotational phases, making the system highly adaptable for different operational states (loading, sealing, ejecting) without requiring complex mechanical linkages.
2Ease of operation
If the movable part is designed for easy accessibility, then loading and ejection are simplified, but the sealing reliability may be compromised
Solution Approach 1:
The spring-loaded movable part automatically moves into the closed position and engages the sealing surface before the operator completes the loading or ejection action. This preliminary sealing action ensures that the chamber is properly sealed during the operational sequence, maintaining reliability while allowing easy access for cartridge manipulation.
Solution Approach 2:
The movable part automatically performs the sealing function through its spring-loaded mechanism, eliminating the need for separate sealing actions by the operator. The system self-adjusts to maintain proper sealing contact between the movable and fixed parts, ensuring reliable sealing while keeping the operation simple and intuitive.
3Ease of operation
If a single lever operation is used to perform all movements, then the ease of operation is improved, but the precision of each movement phase may be reduced
Solution Approach 1:
The sliding pivot connection creates a dynamic mechanism where the lever's single rotational motion automatically transforms into a coordinated sequence of movements: first rotating the movable part around axis A, then around axis B. The geometry of the sliding pivot ensures that each movement phase occurs at the appropriate moment, maintaining precision without requiring multiple separate controls or complex timing mechanisms.
Solution Approach 2:
The sliding pivot connection acts as an intermediary mechanism that mediates between the simple lever rotation and the complex multi-phase movement requirements. It converts the single-degree-of-freedom lever input into the required two-degree-of-freedom output sequence, ensuring proper timing and positioning of each movement phase while maintaining operational simplicity.
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
This solution enables easy access to the interior of the coffee packaging, facilitates sealing, and allows for efficient manual or automatic ejection, enhancing user convenience and operational efficiency in coffee machine operations.
Implementation Method 1
device comprising elastic means for pushing the element mounted in translation towards a position in which the movable part is away from the fixed part
Data Source
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AI summary
The invention relates to an extraction device for production of infusion drinks, comprising an infusion chamber made up of a fixed part (1) and a moving part (2) which opens and closes the infusion chamber, a lever (20), mounted to rotate relative to an axle (A) and drive the moving part (2) in rotation relative to an axle (B), by means of a sliding pivot joint between the lever (20) and the moving part (2), characterised in that the axle (B) of rotation of the moving part (2) is arranged on an element mounted such as to move relative to the fixed part (1) to bring the moving part (2) closer to or further away from the fixed part (1).