Capsule Holder Locking Surfaces for Centrifugal Closure Reliability
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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 due to the need for complex and robust designs.
Innovation Solution
A receptacle holding unit with a fastening arrangement featuring rotatable engagement surfaces and a locking member that allows for secure closure and easy disengagement, enabling efficient handling of capsules during beverage preparation while minimizing exposure to fluid pressure and mechanical stress.
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 reliability of the closure is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The closure system is divided into two separate parts: a first part (holder) and a second part (cover), each with simplified structures. The first part contains engagement surfaces for rotational coupling, while the second part contains corresponding engagement surfaces and a locking member. This segmentation allows each part to be simpler while maintaining overall closure reliability through their coordinated interaction.
Solution Approach 2:
The closure system employs dynamic elements including rotatable engagement surfaces that allow rotational movement for locking/unlocking, and a movable locking member that can shift between locked and unlocked positions. These dynamic features enable the closure to adapt to centrifugal forces during operation while maintaining simplicity in each individual component.
2Reliability
If a complex robust design is used to maintain closure under centrifugal pressure, then the reliability is improved, but the manufacturing cost increases
Solution Approach 1:
By dividing the closure into separate first and second parts with distinct functions, each component can be manufactured independently using simpler, more cost-effective processes. The first part can be produced as a holder structure, while the second part can be manufactured separately with integrated locking features, reducing overall manufacturing complexity and cost.
Solution Approach 2:
The closure system incorporates self-locking and self-unlocking mechanisms through the interaction of engagement surfaces and the locking member. The rotational engagement surfaces automatically lock when brought together, and the locking member provides automatic securing without requiring additional complex fastening mechanisms, thereby reducing manufacturing costs while maintaining reliability.
3Reliability
If a secure closure system is used to resist mechanical forces, then the reliability is improved, but the ease of operation for engagement and disengagement deteriorates
Solution Approach 1:
The closure system uses dynamic rotational engagement surfaces that allow the second part to rotate relative to the first part for easy engagement and disengagement. The locking member can be moved to locked or unlocked positions, providing secure closure when locked and easy opening when unlocked. This dynamic design maintains closure security during operation while enabling simple manual operation for capsule insertion and removal.
Solution Approach 2:
The locking member acts as an intermediary element between the two parts, mediating the secure connection during centrifugal operation while allowing easy disengagement when actuated. This intermediate component provides the necessary security during beverage preparation but can be easily moved to release the closure, balancing reliability with ease of operation.
Data Source
AI summary
A receptacle holding unit (1) for a device for preparing a beverage from an ingredient contained in a receptacle (2). A first part (10) and a second part (20) are movable between a closed position for holding said receptacle and an open position for inserting said receptacle and/or for removal therefrom. A fastening arrangement comprises a locking member (30) movable between: —a locking position for preventing relative rotational movement of the first and second engagement surfaces (11, 21) when the parts (10, 20) are in the closed position; and —an unlocking position for allowing relative rotational movement of the of the first and second engagements surfaces (11, 21) and engagement and disengagement thereof.