Tri-Blade Blender Assembly for High-Speed Operation and Easy Cleaning
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Solution Overview
Problem
Existing blender blade assemblies lack efficiency and durability, particularly at higher speeds, and require complex servicing processes.
Innovation Solution
A blade assembly with three main or sweeper blades and three optional upper blades, featuring a threaded hub for secure retention and a polymeric fixing nut for sealing, designed to operate at higher speeds with reduced mechanical complexity and improved cleaning accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If prior art blade assemblies are used, then structural simplicity is maintained, but operational speed and durability are limited
Solution Approach 1:
The blade assembly is segmented into three main blades and three upper blades, with each blade being a separate component that can be independently replaced. This segmentation allows for optimized blade design for high-speed operation while maintaining durability through selective replacement of worn blades rather than the entire assembly.
Solution Approach 2:
The blade assembly incorporates dynamic balancing features and flexible mounting that allow the blades to operate stably at higher speeds (20-24,000 rpm). The design accommodates operational dynamics through precision bearings and balanced blade configuration, enabling sustained high-speed operation without compromising durability.
2Ease of repair
If complex blade assembly designs are used, then durability may improve, but servicing and cleaning become more difficult
Solution Approach 1:
The blade assembly is divided into modular components (three main blades, three upper blades, and a bearing case) that can be easily separated and serviced independently. This modular design simplifies maintenance by allowing individual blade replacement without disassembling the entire assembly, reducing servicing complexity while maintaining durability.
Solution Approach 2:
The blades are designed to be easily extracted from the bearing case through a simple retention mechanism. The blades can be removed and reinstalled without special tools or complex procedures, making maintenance straightforward while preserving the robust construction needed for durability.
3Ease of operation
If traditional retention mechanisms are used, then ease of assembly is maintained, but food trapping and cleaning accessibility worsen
Solution Approach 1:
The retention mechanism is designed to allow easy extraction of blades from the bearing case, creating open access for cleaning. The simple retention system eliminates complex fasteners that could trap food, allowing complete removal of blades for thorough cleaning while maintaining secure assembly during operation.
Solution Approach 2:
The bearing case incorporates smooth, continuous surfaces without crevices or complex geometric features where food could trap. The streamlined design of the retention mechanism eliminates sharp corners and hidden spaces, facilitating complete cleaning access while maintaining structural integrity.
Data Source
AI summary
A jug body having a through opening for receiving a blade assembly, the opening extending through a hub formed on an underside of the jug; the blade assembly having a bearing case within which is mounted bearings for supporting a shaft; the bearing case having a flange at one end and having threads at an opposite end, the threads protruding from a lower surface of the hub; the threads cooperating with a threaded nut that draws the flange into engagement with the jug; the lower surface of the hub and the nut being capped by a cover through which protrudes the shaft; a lower end of the shaft having attached to it, a coupling.