Coffee grinder-doser with repositionable system for indicating the position of the means for adjusting the distance between the grinders
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Solution Overview
Problem
Existing coffee grinders face challenges in maintaining consistent particle size distribution due to variable factors like roasting, temperature, and wear, requiring frequent adjustments of the mill distance, which is difficult to accurately reposition without losing the reference point or using impractical marking systems.
Innovation Solution
A coffee grinder-doser with a repositionable system featuring a ring-nut mechanism and graduated ring with indices, allowing manual adjustment and locking of the mill distance, ensuring precise and durable repositioning of the reference point for optimal grinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If repositionable labels with adhesives are used to mark the reference position, then the reference point can be repositioned, but the solution is of limited duration and may be lost when shifted
Solution Approach 1:
The marking system is segmented into a separate repositionable label component that can be independently removed and repositioned on the adjustment member, allowing the reference mark to be relocated without damaging the adjustment mechanism itself
Solution Approach 2:
A magnetic field is introduced as an intermediary between the label and the adjustment member to provide secure attachment without adhesives, enabling reliable repositioning while maintaining durability of the marking system
2Reliability
If a fixed index integral with the movement member is used, then the reference position is always available, but the working position cannot be marked at will
Solution Approach 1:
The indexing system transitions from a fixed integral index to a dynamic repositionable label system that can be moved along the adjustment member to mark any desired reference position, providing both reliability of reference marking and flexibility of positioning
Solution Approach 2:
The system allows changing the positional parameter of the reference mark along the adjustment member's travel path, enabling the user to define different reference positions based on working conditions while maintaining accurate indexing functionality
Data Source
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AI summary
Coffee grinder-doser (4) comprising a grinder-doser body (8) which encloses a grinding chamber (12) which houses a first and a second mill (18, 108) configured and mutually positioned to grind coffee beans into powder, an external ring-nut (24) which may be gripped and rotated by an operator, integrally connected to the first mill (18), a nut screw (32) with longitudinal axis (X-X), inside the grinding chamber (12), which is engaged with an external thread (33) of the ring-nut (24), in order to allow the translation of the position of the first mill (18) with respect to said longitudinal axis (X-X), the ring-nut (24) being provided with a ring-nut body (31) and a plurality of indices (36) which define the angular position thereof, the grinder-doser body (8) comprising in turn a fixed reference (40) for said indices (36). Advantageously, the ring-nut (24) is associated with a graduated ring (44), provided with said indices (36), and a cover (48) at least partially removable to lock in place the graduated ring (44) between the cover (48) and the ring-nut (24), the cover (48) being fixed to the ring-nut body (31) by at least partially removable coupling means (52) which allow the adjustment and locking of the angular position of the graduated ring (44) .