Portion Capsule Filter With Reinforcing Braces
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Solution Overview
Problem
Existing portion capsules with filter devices face the risk of breakage or cracking due to increased pressure during beverage extraction, as the filter surfaces are often unsupported and prone to stress.
Innovation Solution
The filter device is reinforced with braces extending from the frame section to the central area, creating a bridge-like structure that reduces the risk of breakage and maintains a hollow space without forming specific liquid channels, with optional radial or converging brace designs and a locking mechanism for secure placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a planar filter device is used to create a hollow space between the capsule base and coffee powder, then the hollow space is formed successfully, but the filter surface is prone to breakage due to increased pressure during extraction
Solution Approach 1:
The filter device is divided into multiple functional zones: a planar filter surface area and a raised frame section area. This segmentation allows the filter surface to maintain its planar shape for hollow space creation while the raised frame provides structural reinforcement to prevent breakage during extraction.
Solution Approach 2:
Different parts of the filter device have different structural properties. The filter surface area remains planar for optimal hollow space formation, while the frame section is raised to provide localized reinforcement where mechanical stress occurs during beverage extraction, thus preventing breakage.
2Volume of stationary object
If the filter device is placed close to the capsule base, then the hollow space is minimized, but the filter surface is more susceptible to pressure-induced breakage
Solution Approach 1:
The filter device transitions from a two-dimensional planar structure to a three-dimensional structure with a raised frame section. This dimensional change allows the filter surface to remain planar for hollow space creation while the vertical dimension of the frame provides structural reinforcement against pressure-induced breakage.
3Reliability
If a raised frame section is added to reinforce the filter surface, then the breakage risk is reduced, but the device complexity increases
Solution Approach 1:
The frame section is merged with the filter device as an integrated component rather than a separate addition. This merging approach provides structural reinforcement to prevent breakage while minimizing additional complexity, as the frame and filter surface form a unified structure that can be manufactured as a single component.
Data Source
Figure 1~5
Figure 6~10
AI summary
Portion capsule (1') substance (15) in powder form extractable by way of liquid to produce a beverage, whereby a filter device (1) with a number of openings (3) is arranged between the capsule base (5) and the substance (15) and/or the capsule lid (14) and the substance, the filter device (1) having a filter surface (2) which is arranged at a distance from the capsule base (5) or lid (14) by an outer, skirt-shaped frame section (4), and whereby the filter device (1) has at least one brace (6), extending from the frame section (4) to an essentially central area of the filter surface (2), which beyond the frame section (4) is arranged at a distance from the capsule base (5) or lid (14).