Multi-Size Cartridge Extraction Unit with Depth Detecting Sensor
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Solution Overview
Problem
Existing beverage preparation machines face challenges in efficiently and cost-effectively handling cartridges of different sizes due to complex mechanical principles and the risk of improper alignment and jamming during the brewing process, which complicates the loading and extraction of cartridges.
Innovation Solution
An extraction unit with a seat that adjusts to accommodate cartridges of two different heights using a depth detecting arrangement and a mechanical sensor to determine the cartridge height, allowing for automatic adaptation and precise locking mechanisms to ensure proper alignment and efficient extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex mechanical principle with two movable parts is used for cartridge extraction, then the extraction function is achieved, but the device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent combines the functions of multiple movable parts into a single integrated movable part that performs both cartridge positioning and extraction. This merging reduces the number of components and simplifies the mechanical principle while maintaining the extraction capability for different cartridge sizes.
Solution Approach 2:
The single movable part is designed to perform multiple functions: guiding the cartridge during insertion, positioning it correctly in the brewing chamber, and extracting it after brewing. This multi-functional design eliminates the need for separate mechanisms for each operation.
2Device complexity
If manual positioning of the cartridge is required, then the device structure is simple, but the operation time increases and user convenience decreases
Solution Approach 1:
The movable part automatically performs cartridge positioning and extraction without requiring manual intervention. The system serves itself by using the movable part to guide, position, and retrieve the cartridge, eliminating the need for user manipulation while maintaining simple device structure.
3Ease of operation
If the cartridge positioning is not precise, then the loading process is simple, but the extraction quality deteriorates and jamming may occur
Solution Approach 1:
The movable part acts as an intermediary between the cartridge and the brewing chamber, ensuring precise positioning during insertion. It guides the cartridge into the correct position and maintains proper alignment throughout the brewing process, preventing jamming while keeping the loading process simple.
4Extent of automation
If multiple linearly moving parts are used simultaneously, then the brewing chamber can be opened and closed, but the risk of hyper-guiding and jamming increases
Solution Approach 1:
The patent merges multiple linearly moving parts into a single movable part that performs all necessary movements. This eliminates the hyper-guiding problem that arises when multiple parts move simultaneously, as there is only one moving component to align, reducing the risk of jamming while maintaining automated brewing chamber operation.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
An extraction unit (10) for extracting cartridges (la; lb) of two different heights (ha;hb) comprises a seat (11, 12, 13; 15) for receiving any of the cartridges (la;lb). The seat is delimited by a first part (11,12,13) and a second part (15) that are relatively movable between an extraction position and a loading and/or ejection position. The first part 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 (la) of the first height (ha); and a second depth (db) for receiving a cartridge (lb) of the second height (hb). The seat has a depth detecting arrangement (20), such as a detecting arrangement comprising a control unit (21) connected to sensor (22) via a connection (23). The depth detecting arrangement is configured to detect a relative position of the first portion and the second portion to determine whether the cavity has at least one of the first and second depths.