Coffee grinder equipped with means for adjusting and displaying the distance between the blades
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Solution Overview
Problem
Existing coffee grinders lack precision in adjusting the distance between the fixed and rotating blades, leading to empirical and complex manual adjustments, and do not provide real-time display of the set distance for consistent coffee powder grain size.
Innovation Solution
A coffee grinder with an oscillating lever system that allows precise adjustment of the shaft's vertical travel, coupled with a detection and display mechanism, either mechanical or electronic, to accurately set and display the blade distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of the crown on the shaft is used to change blade distance, then the grain size can be adjusted, but the adjustment is imprecise and empirical without real-time feedback
Solution Approach 1:
The patent introduces a display device that provides real-time visual feedback of the blade distance to the user during manual adjustment. The display device is connected to the shaft and shows the actual distance between the rotating blade and fixed blade, allowing users to precisely control the blade distance while seeing the exact measurement, thus transforming empirical adjustment into precise, informed control.
2Ease of operation
If a crown keyed onto the shaft is used for manual adjustment, then the shaft position can be changed, but the mechanical structure becomes complex and the crown must alternatively engage and disengage from the shaft
Solution Approach 1:
The display device serves multiple functions: it displays blade distance during manual adjustment, provides reference markings for precise positioning, and remains integrated with the shaft structure. The crown and display device work together as a unified system where the display provides continuous information without requiring separate engagement/disengagement mechanisms, simplifying the overall operation.
3Manufacturing precision
If the rotating blade is moved closer to the fixed blade, then smaller grain size is produced, but the user cannot precisely control the distance without real-time information
Solution Approach 1:
The display device provides continuous real-time visual feedback of the blade distance to the user, showing the exact measurement as the crown is adjusted. This allows users to precisely control the blade distance and thereby control the grain size of the coffee powder, transforming the process from empirical to precise and informed.
Solution Approach 2:
The display device uses visual indicators (such as colored markings or digital display elements) to represent different blade distance values, making it easy for users to identify and select specific distance settings for consistent grain size production.
Data Source
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AI summary
An electrically operated coffee grinder of the type provided with a pair of blades operating in a coffee grinding chamber with the capacity to increase or decrease their mutual distance for the purpose of selecting the grain size of the coffee powder to be obtained, wherein said coffee grinder comprises means for adjusting and displaying the distance between said blades.