Cartridge Holder Motion Linkage for Smooth Beverage Pod Ejection
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Solution Overview
Problem
Existing beverage preparation devices using cartridges face issues such as cartridge sticking, accidental dropping, wear, and complexity leading to high production costs and mechanical issues during the transition from cartridge introduction to preparation.
Innovation Solution
A device employing combined movements of translation and rotation without discontinuities, featuring a moving element with a toggle mechanism and oscillating arm constraint to ensure smooth cartridge handling and expulsion, reducing wear and production complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple translation movement is used for cartridge insertion and preparation transition, then device complexity is reduced, but cartridge expulsion becomes critical with sticking risks
Solution Approach 1:
The patent applies dynamics by transitioning from simple translation to a coupled rotation-translation movement system. The moving element rotates around an axis while simultaneously translating, creating a dynamic motion path that prevents cartridge sticking during expulsion and insertion operations.
Solution Approach 2:
The invention adds a rotational dimension to the traditional linear translation movement. By introducing rotation around an axis combined with translation along the axis, the system moves from one-dimensional to two-dimensional motion, eliminating sticking issues without significantly increasing overall device complexity.
2Ease of operation
If sequence movements of translation and rotation are used, then cartridge handling improves, but discontinuities and localized accelerations cause cartridge dropping and wear
Solution Approach 1:
The patent ensures continuous smooth motion by coupling rotation and translation movements through a constraint mechanism. The oscillating arm guides the moving element along a continuous path, eliminating discontinuities and localized accelerations that would cause cartridge dropping or wear during handling operations.
3Ease of operation
If complex mechanisms with multiple components are used, then movement control improves, but production cost increases and wear resistance decreases
Solution Approach 1:
The moving element serves multiple functions simultaneously: it rotates around an axis, translates along the axis, and carries the cartridge. This multi-functionality reduces the need for separate components for each motion function, simplifying the overall mechanism and reducing production costs while maintaining precise movement control.
Solution Approach 2:
The invention merges rotation and translation movements into a single coupled motion system rather than using separate mechanisms. The oscillating arm constraint combines both motion types in one integrated mechanism, reducing component count and simplifying manufacturing while achieving reliable movement control.
Data Source
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AI summary
A device for preparing beverages, such as coffee, via a substance contained in a cartridge (C) comprises: - a supporting structure (3); and - a cartridge-holder moving element (10) having a distal cartridge-holder portion (12), the moving element (10) being supported on the supporting structure (3) for rotation about an axis (X10) between a first angular position and a second angular position and for translation with respect to said axis (X10) between a proximal position and a distal position. A link (18) is provided, such as an oscillating arm, which constrains the cartridge-holder moving element (10) and the supporting structure (3) so that the cartridge-holder moving element (10) is mobile between a condition of loading of the cartridge (C) and a condition of preparation of the beverage as a result of simultaneous movements of rotation and translation with respect to the aforesaid axis (X10).