Food processor

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Solution Overview

Problem

Existing food processors, such as blenders and juicers, pose safety risks due to exposed screws that can rotate freely, leading to accidents, and lack convenient assembly and disassembly of containers.

Innovation Solution

A food processor design featuring a body with a container that has a screw accommodated within, a juicing filter covering the screw, and a cover that couples to the container, incorporating safety switches and a locking mechanism to prevent screw rotation when the cover is not securely attached, enhancing safety and assembly convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the screw is exposed to the outside for easy access and operation, then the ease of operation is improved, but the safety risk increases due to potential rotation accidents

Engineering Contradiction:
Improveaccess to screwVSAvoidsafety risk from rotation
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The screw is extracted from direct external exposure and placed inside the container, where it is not accessible to users during operation. This eliminates the safety hazard of exposed rotating parts while maintaining operational functionality through the cover coupling mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cover acts as an intermediary between the user and the screw. When coupled to the container, it mediates the connection and prevents direct access to the screw, thereby eliminating safety risks while allowing the screw to perform its function internally.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the cover is not fixed to the container, then the ease of assembly and disassembly is improved, but the safety risk increases due to cover separation during operation

Engineering Contradiction:
Improveassembly and disassembly convenienceVSAvoidcover separation accident
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The safety switch is activated in advance when the cover is coupled to the container, before the screw begins rotation. This preliminary action ensures that the system is in a safe state before operation commences, preventing cover separation accidents while maintaining easy assembly and disassembly.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The safety switch provides feedback about the cover's coupling state to the control system. This feedback mechanism ensures that the screw only operates when the cover is properly attached, preventing accidents while allowing convenient assembly and disassembly when the switch detects the cover is secured.

Inventive Principle:
Principle #23Feedback

3Reliability

If the safety switch mechanism is added to detect cover coupling, then the safety is improved, but the device complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidassembly structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The safety switch automatically detects whether the cover is coupled to the container without requiring external monitoring or complex control systems. The switch serves itself by utilizing the mechanical state of the cover coupling to activate or deactivate the screw operation, thereby improving safety while minimizing added complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20230180958A1Food processor
Publication Date: 2023.06.15 NUC ELECTRONICS CO LTD
  • US20230180958A1 patent drawing
  • US20230180958A1 patent drawing
  • US20230180958A1 patent drawing

AI summary

A food processor according to an embodiment of the present invention comprises: a body; a container detachably coupled to the body; a screw connected to the body while being at least partially received in the container; a juicing filter arranged to surround the tip side of the screw; and a cover detachably coupled to the leading end side of the container, wherein the container includes a first safety switch exposed toward the leading end side, and the first safety switch is switched to an ON state by the juicing filter in a state where the cover is coupled to the container.