Coffee Grinder Cap-Integrated Crank to Reduce Component Complexity
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Solution Overview
Problem
Existing manual coffee grinders require a separate crank handle for operation, which can be cumbersome and inconvenient, especially for portable and compact designs.
Innovation Solution
A portable coffee grinder system that integrates a rotating cap mechanism, allowing for the rotation of burrs without a separate handle, using a release button to detach and attach the cap for easy access and operation, enabling grinding without the need for a separate handle component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a separate crank handle is used for manual coffee grinding, then sufficient grinding force can be generated, but the device becomes more complex and less portable
Solution Approach 1:
The patent merges the crank handle with the cap that covers the grinding chamber. The cap itself becomes the crank by having protrusions that engage with recesses in the burr assembly, eliminating the need for a separate handle component. This integration reduces device complexity while maintaining the mechanical advantage needed for grinding.
Solution Approach 2:
The cap serves multiple functions: it covers the grinding chamber to contain beans during grinding, and simultaneously acts as the crank handle for rotating the burrs. This multi-functionality eliminates the need for a separate dedicated handle, reducing overall device complexity while preserving grinding capability.
2Ease of operation
If a separate crank handle is provided for manual grinding, then grinding operation is enabled, but the device requires more components and is harder to clean
Solution Approach 1:
By combining the crank handle function with the cap, the patent reduces the total number of separate components. The cap with integrated crank protrusions eliminates the need for a detachable handle, simplifying the overall structure and reducing the number of parts that need to be assembled and cleaned.
3Device complexity
If the cap is permanently attached to the grinding assembly, then the structure is simpler, but the raw material cannot be accessed for loading
Solution Approach 1:
The cap is designed as a detachable component that can be separated from the grinding assembly. This segmentation allows the cap to be removed for loading coffee beans into the grinding chamber, while still maintaining a simple overall structure when assembled. The detachable nature provides operational flexibility without significantly increasing complexity.
Data Source
AI summary
A grinding system for grinding raw material to obtain ground material comprises a housing, a grinding assembly, and a first cap. The housing defines a grinding chamber, and the grinding assembly comprising a plurality of burrs. The grinding assembly is supported relative to the housing such that each of the plurality of burrs is arranged within the grinding chamber. The first cap is detachably attachable to the grinding assembly such that, with the first cap attached to the grinding assembly, rotation of the first cap relative to the housing causes rotation of at least one of the plurality of burrs relative to at least one other of the plurality of burrs and, with the first cap detached from the grinding assembly, the raw material may be arranged within the grinding chamber.