Stand Mixer Food Processor Attachment With Overload Clutch
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Solution Overview
Problem
Household food processors often require pre-processing of foods due to small feed chutes and lack of torque to handle whole or tough foods, leading to overload conditions that can cause mechanical seizures and damage.
Innovation Solution
A food processor attachment for stand mixers featuring a gear housing with a coupling hub, a top housing assembly with a feed chute, and a bowl assembly, which includes a vertically rotating output drive shaft to process whole foods efficiently while preventing motor overload through a clutch mechanism that disengages in case of wedged items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a food processor uses a small feed chute and standard drive mechanism, then the device remains compact and simple, but it cannot process whole or tough foods without pre-processing and is prone to motor overload
Solution Approach 1:
The drive mechanism is segmented into multiple components: a clutch assembly with friction surfaces, a drive shaft, and a feed chute. The clutch assembly can disengage when overload occurs, protecting the motor while allowing the processor to handle tough foods. This segmentation allows the system to tolerate variable loads without motor damage.
Solution Approach 2:
The feed chute is designed with a movable or adjustable configuration that can adapt to different food types and sizes. The dynamic design allows the chute to accommodate whole foods while maintaining compact dimensions, resolving the contradiction between versatility and motor protection.
2Force
If a food processor lacks sufficient torque, then the motor remains small and simple, but it cannot handle tougher foods
Solution Approach 1:
A gear mechanism or transmission system acts as an intermediary between the motor and the cutting elements. This intermediary amplifies the motor's torque output, enabling the processor to handle tough foods without requiring a large, complex motor. The gear train provides mechanical advantage while maintaining overall system simplicity.
3Productivity
If food items are wedged or friction increases between food and cutting tools, then processing power increases, but the internal rotating assembly can seize or housing parts can become damaged
Solution Approach 1:
The clutch assembly is pre-configured with friction surfaces and spring elements that provide overload protection before damage occurs. When excessive force is detected during food processing, the clutch disengages, cushioning the blow and preventing seizure of the rotating assembly or damage to housing parts. This prior cushioning mechanism protects the system while maintaining high processing capability.
Data Source
AI summary
A food processor attachment assembly for a stand mixer includes a coupling hub adapted to be received in an attachment hub of the stand mixer. A gear housing includes a gearing mechanism disposed therein to translate an output drive from the attachment hub to the coupling hub to drive an output shaft along a vertical rotational axis. The output drive is accessible at a coupling portion for attaching to various food processing discs as housed within a top housing assembly. The output drive is further accessible for coupling to the food processing attachment at a lower coupling portion for powering food processing attachments within a bowl assembly.