Coffee Grinder Blade Unit Segmentation for Tool-Free Cleaning
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Solution Overview
Problem
Conventional coffee beans grinders require tools for disassembly and pose difficulties in accessing and cleaning the blade units due to resilient connections, making maintenance cumbersome.
Innovation Solution
A coffee beans grinder design featuring a manually-operable engagement element allows easy attachment and detachment of the dispensing component, exposing the blade elements for simple cleaning, with a conical first blade and cylindrical second blade configuration for improved accessibility and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw head connection with spring is used to connect the outer tube and inner tube, then the connection is secure and reliable, but the disassembly requires tools and the reassembly is difficult due to spring resistance
Solution Approach 1:
The blade unit is divided into two separable parts: the outer tube containing the outer blade and the inner tube containing the inner blade. This segmentation allows each part to be independently removed and cleaned, eliminating the need for tool-assisted disassembly of a unified structure while maintaining secure operation during use.
Solution Approach 2:
The head connection structure is extracted and replaced with a simplified engagement mechanism. The engagement groove and engagement protrusion design allows the inner tube to be easily inserted and secured without requiring a screw head, tool assistance, or overcoming spring resistance during reassembly.
2Stability of the object's composition
If the head is securely connected to the shaft with spring resistance, then the structure is stable, but the user cannot manually disconnect the outer tube from the inner tube without tools
Solution Approach 1:
The connection mechanism transitions from a static screw-head design to a dynamic engagement system where the inner tube can be easily inserted into and removed from the outer tube through simple manual operations. The engagement groove and protrusion allow for stable connection during operation while enabling easy manual disassembly for cleaning.
3Device complexity
If the blade unit is integrated with resilient connection, then the structure is compact, but the user cannot easily access or clean the male blade and female blade
Solution Approach 1:
The blade unit is segmented into the outer tube with the outer blade and the inner tube with the inner blade. This segmentation maintains structural compactness during operation while allowing easy separation for cleaning, as each blade-containing tube can be independently removed and cleaned without disassembling the entire grinder.
Solution Approach 2:
The blades are extracted from a unified integrated structure and placed in separate removable tubes. This allows the tubes to be easily removed and cleaned, improving accessibility for maintenance while maintaining the compact integrated appearance during normal operation.
4Reliability
If a tool is required for connecting or disconnecting the outer tube and inner tube, then the connection is secure, but the maintenance process becomes cumbersome
Solution Approach 1:
The blade unit is segmented into separately removable outer tube and inner tube components. This allows maintenance personnel to easily remove and clean each tube without requiring tools, significantly improving maintenance convenience while the engagement groove and protrusion design ensures secure connection during operation.
Solution Approach 2:
The engagement mechanism is designed to be self-servicing, allowing users to easily connect and disconnect the outer tube and inner tube without requiring external tools or specialized skills. The simple engagement groove and protrusion design enables tool-free assembly and disassembly for routine maintenance.
Data Source
AI summary
A coffee beans grinder includes a main body, a dispensing component, a blade unit for grinding coffee beans having a first blade element and a second blade element facing the first blade element, and a dispensing element provided in the dispensing component for feeding coffee beans to a grinding space defined between the first blade element and the second blade element. The first blade element is provided in the main body, and the second blade element is provided in the dispensing component. The dispensing component is removably attached to the main body with a manually-operable engagement element. The second blade element faces the first blade element to define the grinding space therebetween with the dispensing component being attached to the main body with the manually-operable engagement element.