Capsule Holder Actuator With Axial Locking Against Centrifugal Forces
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Solution Overview
Problem
Existing beverage preparation devices face challenges in maintaining a robust closure system that resists axial and radial forces generated by centrifugal pressure, leading to premature wear of mechanical components and increased costs.
Innovation Solution
A receptacle holding unit with a single axial movement actuator that drives and actuates the first and second parts for closing and fastening, incorporating a piercing device and locking mechanism to securely hold and process capsules, reducing the effort required and minimizing mechanical stress on components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a robust closure system is used to resist axial and radial forces from centrifugal pressure, then the device can maintain secure holding of receptacles, but mechanical components experience premature wear and costs increase
Solution Approach 1:
The patent extracts the liquid interface function from the closure system by providing a separate, removable liquid interface component that can be easily replaced. This separates the wear-prone sealing function from the structural closure components, allowing the main closure system to remain robust while the interface is replaced as needed, thus resolving the contradiction between reliability and component longevity
Solution Approach 2:
The patent changes the state of the liquid interface from a permanent, fixed component to a replaceable, consumable element. This parameter change allows the interface to be optimized for sealing performance while the main closure structure maintains its mechanical strength, resolving the wear issue without compromising closure reliability
2Reliability
If a complex closure system is used to resist centrifugal forces, then the device maintains secure holding, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent segments the closure system into distinct functional components: a robust structural closure body and a separate, simpler liquid interface component. This segmentation allows each part to be optimized independently - the closure body for mechanical strength and the interface for sealing - reducing overall system complexity while maintaining reliability
Solution Approach 2:
The closure body is designed with universal, standardized engagement features that work with different receptacle types. The standardized interface allows the same closure mechanism to serve multiple functions across different applications, reducing the need for complex, application-specific closure designs
3Device complexity
If manual effort is required to open or close the brewing device, then device complexity is reduced, but user convenience and productivity decrease
Solution Approach 1:
The patent merges the opening and closing actions into a single, unified motion of the brewing device. The movable part simultaneously performs both functions - opening to allow capsule insertion and closing to secure the capsule - eliminating the need for separate actuation mechanisms and maintaining simplicity while improving productivity
Solution Approach 2:
The patent employs a dynamic, movable brewing device that transitions between open and closed states through a single actuation motion. This dynamic design allows rapid cycling between states without complex multi-step mechanisms, improving operational speed while keeping the system simple
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
The solution allows for efficient and secure processing of beverage capsules with reduced mechanical stress, enhancing the durability of the device while maintaining a cost-effective design by spreading the actuation effort and minimizing exposure to fluid pressure.
Implementation Method 1
an actuator (30) movable between an open configuration (Fig. 4) and a closed configuration (Fig. 6) to drive first part (10) and second part (20) into the closed position
Implementation Method 2
When the device is rotated at high speed during centrifugation, the liquid extract creates important axial and radial forces which tend to separate these rotating parts
Data Source
Figure 1
Figure 2~3
Figure 4~4a
AI summary
A receptacle holding unit (1) for a device for preparing a beverage from an ingredient contained in a receptacle (2) comprises: -a first part (10); -a second part (20) that is movable towards the first part, in particular along a longitudinal axis (1'), into a closed position for holding the receptacle in such unit and relatively apart from the first part into an open position for inserting the receptacle into such unit and/or for removal therefrom; -a fastening device (11, 21) having a fastened configuration for fastening together the first and second parts (10, 20) in the closed position and an unfastened configuration such to enable movement of the first and second parts out of the closed configuration; and -an actuator (30) movable between an open configuration and a closed configuration to drive the first part and the second part between the open and the closed positions. The actuator is movable along a straight axis (1') to drive the first part (10) and the second part (20) into the closed position and further movable along said axis (1') to actuate the fastening device (11, 21) from the unfastened configuration to the fastened configuration.