Grinder Assembly with Top-Driven Mechanism to Reduce Residual Grounds
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Solution Overview
Problem
Coffee grinders often leave residual coffee grounds in transport channels, which mix with freshly ground coffee, affecting quality and requiring inefficient cleaning processes.
Innovation Solution
A compact grinder design with a drive system positioned non-interferingly relative to coffee beans and grounds, featuring a rotating sleeve with a discharge conduit for direct ejection, minimizing interference and additional transport structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the drive system is positioned on the outlet side of the grinding mechanism, then the grinding mechanism can be driven effectively, but the drive system interferes with coffee beans and grounds, requiring additional transport structures and causing residual grounds to remain in transport channels
Solution Approach 1:
The drive system is extracted from the outlet side position and relocated to the inlet side of the grinding mechanism. This removes the interfering element from the grounds ejection path, eliminating the need for complex diversion transport structures while preserving the driving capability of the grinding mechanism.
Solution Approach 2:
The drive system is repositioned from a lateral/outlet-side location to an inlet-side location, changing its spatial dimension relative to the grinding mechanism. This dimensional repositioning allows the drive system to operate effectively while being clear of the grounds ejection path.
2Ease of operation
If grounds are ejected laterally perpendicular to the rotation axis, then the drive system can be positioned on the outlet side, but residual grounds remain in transport channels and quality deteriorates
Solution Approach 1:
Instead of ejecting grounds laterally perpendicular to the rotation axis, the system inverts the ejection direction to axially downward along the rotation axis. This inversion allows grounds to be ejected directly downward without requiring lateral diversion, eliminating residual grounds in transport channels and maintaining coffee quality.
Solution Approach 2:
The lateral ejection mechanism and its associated transport structures are removed from the system. By extracting these unnecessary components, the design achieves direct axial ejection, simplifying the mechanism while improving reliability by eliminating coffee quality deterioration.
3Reliability
If a cleaning process is implemented to dispose of initial portion of grounds, then coffee quality is maintained, but coffee is wasted and the process becomes expensive and inefficient
Solution Approach 1:
The design performs preliminary action by ensuring the ejection path is clear of obstacles and transport structures before grounds need to be ejected. The axially downward ejection path is designed to be free of interference from the outset, allowing all grounds including the initial portion to be ejected directly without requiring subsequent cleaning or disposal processes.
Solution Approach 2:
The grinder assembly serves itself by designing an ejection system that naturally prevents ground accumulation without requiring external cleaning interventions. The direct axial ejection path allows the system to maintain coffee quality automatically, eliminating the need for wasteful cleaning processes.
4Device complexity
If transport structures are minimized, then the grinder design becomes compact and efficient, but the drive system must be repositioned to avoid interfering with coffee flow
Solution Approach 1:
The drive system is extracted from its conventional outlet-side position and relocated to the inlet side of the grinding mechanism. This extraction eliminates the need for complex transport structures to divert grounds around the drive system, simplifying the overall design while making the drive system positioning straightforward.
Solution Approach 2:
The drive system is repositioned to a different spatial location (inlet side instead of outlet side), changing its dimensional relationship with the coffee flow path. This dimensional change naturally avoids interference with coffee beans and grounds, simplifying both the transport structure and drive system integration.
Data Source
AI summary
A grinder assembly which minimizes deviations in the path of ground material as well as other interfering structure is provided. A receiving chamber is disposed above a grinding mechanism and provides for direct transfer of material to be ground from the outlet aperture of the receiving chamber to the grinding mechanism. The grinding mechanism is driven from above and, therefore, no other structure necessary which may interfere with the ejection of grounds from the grinder assembly. A vacuum-stabilized base plate may also be provided in order to securely and removably mount the grinder assembly to a surface.