Coffee grinder with grind size easy to adjust
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Solution Overview
Problem
Adjusting the grind size of coffee beans in existing coffee grinders is inconvenient as it requires detaching the coffee cup and adjusting the grind size at the bottom of the grinder.
Innovation Solution
A coffee grinder design featuring a cup lid, coffee cup, bean hopper, and lid body with snap-fit connections and adjustable grinding discs, allowing for easy adjustment of grind size without detaching the coffee cup, using a rotary mechanism and snap-fit structures to facilitate rotation of the lid body and grinding discs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coffee cup is detached to adjust grind size at the bottom of the grinder, then the grind size can be adjusted, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The grinder is divided into multiple segments: an upper adjustable component with grinding elements and a lower fixed base. The upper segment can be rotated independently to adjust grind size without removing the coffee cup, while the lower segment remains stationary. This segmentation allows localized adjustment without disrupting the entire system.
Solution Approach 2:
Instead of adjusting grind size by accessing the bottom of the grinder as in conventional designs, this invention inverts the adjustment mechanism to the top. The user rotates the upper component containing the grinding elements, making adjustment intuitive and accessible without detaching components.
2Adaptability or versatility
If the coffee cup is detached for adjustment, then grind size can be changed, but the brewing process is interrupted
Solution Approach 1:
The grinding system employs dynamic adjustability where the upper grinding component can be rotated to different positions during operation. Each rotation position changes the gap between grinding elements, allowing real-time adaptation of grind size without stopping the brewing process or removing the coffee cup.
Solution Approach 2:
The adjustment mechanism is pre-configured with multiple fixed positions that correspond to different grind sizes. Users can quickly select the desired grind size by rotating to the appropriate position without needing to make precise manual adjustments, enabling rapid adaptation while maintaining brewing efficiency.
3Ease of operation
If a complex adjustment mechanism is used to enable easy adjustment, then grind size is easy to adjust, but the device complexity increases
Solution Approach 1:
The adjustment function is extracted from the base and concentrated in the rotatable upper component. This isolated adjustment mechanism consists of simple rotational movement with predefined positions, avoiding complex multi-component systems. The coffee cup and its lid remain separate from the adjustment mechanism, simplifying the overall structure.
Solution Approach 2:
The rotatable upper component features self-aligning detents or magnetic indicators that automatically guide the user to correct adjustment positions. This self-service feature eliminates the need for complex controls, displays, or electronic systems, achieving ease of operation through intuitive mechanical design.
Data Source
AI summary
A coffee grinder with a grind size easy to adjust includes a cup lid, a coffee cup, a bean hopper and a lid body. The cup lid is arranged at the bottom of the coffee cup. The bean hopper is arranged at the top of the coffee cup. The lid body is arranged at the top of the bean hopper. A protruding tool-setting screw rod is arranged on a bottom surface of the lid body. The tool-setting screw rod extends into a driving disc base. A rotary rod is arranged in a tool-setting nut sleeve and has an end extending into a motor arranged in the tool-setting screw rod as well as an end extending into a bean hopper support. The coffee grinder is simple and reasonable in structural design and being provided with a structure for adjusting the size of ground coffee beans.