Blade holder for kitchen robot
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Solution Overview
Problem
Integrated blade holders in kitchen appliances are not removable, making cleaning difficult and replacing defective or worn blades cumbersome, while removable blade holders have complex structures with multiple seals and parts.
Innovation Solution
A simplified blade holder design with a central portion acting as a washer, eliminating the need for metallic friction surfaces and additional seals, featuring a balanced configuration with two knives extending in opposite directions and a bayonet locking system for easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable blade holder is used, then cleaning and replacement of the blade become easier, but the structure becomes more complex requiring additional seals and parts
Solution Approach 1:
The blade's central portion is merged with the locking mechanism by integrating a conical friction surface directly into the blade structure. This eliminates the need for separate locking components and seals, simplifying the overall assembly while maintaining removability for cleaning purposes.
Solution Approach 2:
The blade's central portion serves multiple functions simultaneously: it acts as both the cutting element support and the locking mechanism. The conical friction surface provides both structural support and locking capability, eliminating the need for dedicated locking components.
2Ease of operation
If a locking nut or bayonet fitting is used, then the blade holder can be easily removed, but numerous seals and parts are required complicating assembly
Solution Approach 1:
The locking function is merged into the blade structure itself through the conical friction surface on the central portion. This eliminates the need for separate locking nuts, bayonet fittings, and multiple seals, reducing the total part count while maintaining easy removability.
Solution Approach 2:
The complex locking mechanism with multiple seals and parts is extracted and replaced by a simple conical friction surface integrated into the blade. This extraction simplifies the assembly by removing unnecessary components while retaining the essential locking and removal functions.
3Device complexity
If an integrated blade holder is used, then the structure is simplified, but cleaning and replacement of the blade becomes tedious
Solution Approach 1:
The blade assembly is segmented into a removable blade component that can be separated from the bowl. The blade's central portion with the conical friction surface allows it to be easily detached for cleaning, while the overall structure remains simple without requiring complex locking mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates efficient food cutting, simplifies cleaning, and allows for easy blade replacement without complex assembly, enhancing user convenience and efficiency.
Implementation Method 1
a first seal, positioned between the locking member and the central portion of the blade
Implementation Method 2
the central portion of the blade acts as a metallic washer that is resistant to friction and heat generated by the blade holder's rotation
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The invention relates to a blade holder (10) for a kitchen food processor, the blade holder (10) comprising: - at least one locking member (20) - at least one blade (30) - a support (40) comprising at least one shaft (41), the blade (30) being mounted on the support (40) around the shaft (41), characterized in that the blade (30) comprises a central portion (31) comprising a passage hole (31a) for the shaft (41) of the support (40), the central portion (31) of the blade (30) comprising a first face (31b) on which the support (40) is positioned and a second face (31c), opposite the first face (31b), configured to cooperate with a first seal (11) positioned between the locking member (20) and the central portion (31) of the blade (30).