Centrifugal Beverage Capsule Locking for Low-Friction Engagement
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Solution Overview
Problem
Existing beverage preparation devices using centrifugation face issues with axial and radial forces separating rotating parts during high-speed rotation, leading to friction and potential gas trapping, which increases device complexity and cost.
Innovation Solution
A device with a connection mechanism where the holding and liquid interfacing parts are connected via a pivoting locking means that strengthens during centrifugation, reducing friction and allowing gas escape through a discharge opening, ensuring the parts remain engaged and minimizing torque requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the holding part and liquid interfacing part are connected rigidly during centrifugation, then the connection strength is sufficient to resist centrifugal forces, but friction increases and gas escape is hindered
Solution Approach 1:
The locking means is designed to pivot dynamically during centrifugation, transitioning from a static closed position to a rotated position where the engaging surfaces remain engaged but with reduced contact pressure. This dynamic adjustment allows the connection to maintain sufficient strength while reducing friction and enabling gas escape through the discharge opening.
Solution Approach 2:
The system changes the engagement parameter between the holding part and liquid interfacing part during operation. Initially, the engaging surfaces are fully engaged for secure connection. During centrifugation, the locking means pivots to alter the engagement parameter, reducing contact pressure while maintaining structural connection, thereby lowering friction and allowing gas venting.
2Reliability
If a locking mechanism is added to maintain connection during centrifugation, then the parts remain engaged, but the device complexity increases
Solution Approach 1:
The locking means utilizes the centrifugal forces generated during operation to automatically pivot into the appropriate engagement position. The centrifugal force itself serves to lock the connection, eliminating the need for external actuators, motors, or complex control systems. This self-locking mechanism maintains reliability while minimizing added complexity.
Solution Approach 2:
The patent replaces complex mechanical locking systems (such as motors, sensors, and control circuits) with a simple pivotable locking means that relies on centrifugal force. This substitution achieves reliable connection maintenance through a passive mechanical element rather than an active control system, significantly reducing device complexity.
3Strength
If the engaging surfaces remain fully engaged during rotation, then connection strength is maintained, but torque requirements increase
Solution Approach 1:
The locking means pivots dynamically during centrifugation to adjust the engagement between engaging surfaces. This dynamic adjustment reduces the contact pressure and frictional resistance, thereby lowering the torque required to rotate the liquid interfacing part while maintaining sufficient connection strength through the pivoted engagement.
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 enhances the connection strength between rotating parts under centrifugal forces, reduces friction, and allows efficient gas escape, resulting in a more robust and cost-effective beverage preparation device with improved operational efficiency.
Implementation Method 1
the engagement forces to increase between the two engaging surfaces as a result of the increase of the centrifugal forces
Implementation Method 2
reducing friction and allowing gas escape through a discharge opening
Data Source
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AI summary
The invention relates to a device for preparing a beverage from a beverage ingredient contained in a receptacle (17) by driving the receptacle (17) in centrifugation comprising a holding part (16) arranged for holding the receptacle (17) in a position enabling it to be rotated along a longitudinal axis of rotation (I), a liquid interfacing part (8) arranged for engaging against the receptacle (17) and for supplying water in the receptacle (17) and extracting the beverage. The holding part (16) and the liquid interfacing part (8) are connected together by connection means in such a manner that these parts (8, 16) rotate together with the receptacle (17) during centrifugation. The connection means comprises at least a first engaging surface (48) of one of the holding part (16) or liquid interfacing part (8) and a second engaging surface (23) of a locking means (20) connected to the other one of the holding part (16) or the liquid interfacing part (8) which are adapted to be engaged in contact together at least during rotation of the device in a manner preventing the holding part (16) and the liquid interfacing part (8) from moving away from each other, at least in the axial direction of rotation (I). The locking means (20) of the connection means is arranged to be moveably connected to the other one of the parts (8, 16) with at least one degree of freedom at least about a pivoting axis (21).