A method for extracting cartridges in an extraction unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing beverage extraction units face challenges in easily and accurately positioning cartridges of different sizes, leading to potential damage and inefficient extraction processes, particularly in low-cost coffee machines where complex mechanical designs are not feasible.
Innovation Solution
A modular extraction unit with movable parts that adjust to accommodate cartridges of two different heights, utilizing a mechanical sensor to lock the parts in the correct position for either depth, ensuring proper sealing and easy loading, and featuring a fluid circulation system for efficient extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mechanical sensor and lock system are used to automatically adjust to cartridge height, then positioning accuracy and ease of operation are improved, but device complexity increases
Solution Approach 1:
The system uses a mechanical sensor that automatically detects cartridge height and triggers the lock mechanism without user intervention. The movable portion self-adjusts to the correct position based on cartridge dimensions, eliminating the need for manual positioning while maintaining operational simplicity.
Solution Approach 2:
The patent replaces complex electronic sensing and control systems with a purely mechanical sensor and lock mechanism. The mechanical sensor detects cartridge presence and height through physical contact, and the lock system responds through mechanical movement, simplifying the overall system while maintaining automation.
2Adaptability or versatility
If the extraction unit is designed to accommodate cartridges of different heights, then adaptability is improved, but device complexity increases
Solution Approach 1:
The extraction unit incorporates a movable portion that can dynamically adjust its position along the extraction axis based on cartridge height. This dynamic adjustment allows the same device to accommodate different cartridge sizes without requiring multiple fixed configurations or complex interchangeable components.
Solution Approach 2:
The extraction unit is divided into fixed and movable portions, allowing independent adjustment of the movable section to match different cartridge heights. This segmentation enables adaptability while keeping the overall structure simple and manageable.
3Manufacturing precision
If a lock mechanism is used to secure the movable portion, then positioning precision is improved, but ease of operation worsens
Solution Approach 1:
The lock mechanism operates automatically through the mechanical sensor detection system. When a cartridge is inserted, the sensor detects its height and automatically triggers the lock to secure the movable portion at the correct position, eliminating the need for manual locking operations while maintaining precise positioning.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
An extraction unit (10) for extracting cartridges (1a;1b) of two different heights (ha;hb) comprises a seat (11,12,13;15) for receiving any of such cartridges (1a;1b) for extraction thereof in the seat. The seat is delimited by a first part (11,12,13) and second part (15) that are relatively movable between a cartridge extraction position and a cartridge loading and/or ejection position. The first part (11,12,13) has a first portion (11,12) and a second portion (13) that are relatively movable to delimit a cavity (12') having selectively: - a first depth (da) for receiving a cartridge (1a) of the first height (ha); and - a second depth (db) for receiving a cartridge (1b) of the second height (hb), the first part (11,12,13) has a lock (112',132,132',142') for locking the first and second portions (11,12,13) when the delimited cavity (12') has the first depth (da) or the second depth (db). Such extraction unit (10) further comprises a mechanical sensor (14) that senses the height (ha;hb) of a cartridge (1a;1b) and that controls the lock (112',132,132',142') to lock or unlock the first and second portions (11,12,13) when the sensor is actuated by a cartridge of first height (ha) or of second height (hb).