cleaner

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Solution Overview

Problem

Existing vacuum cleaners face challenges in maintaining straightness and operability, especially when navigating uneven surfaces and narrow gaps, due to lack of effective yaw axis resistance and selective rotation control.

Innovation Solution

The vacuum cleaner incorporates a pitch member, yaw member, and roll member with anti-roll and anti-yaw assemblies that allow selective rotation, limiting unnecessary shaking and enabling easy operation by adjusting the main body's height and position, using elastic members and locking mechanisms to facilitate precise movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cleaner head rotates about the yaw axis for left-right steering, then operability is improved, but straightness deteriorates due to shaking on uneven floors

Engineering Contradiction:
ImproveoperabilityVSAvoidstraightness
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The cleaner head employs dynamic rotation control that adapts to operational conditions. The system can switch between yaw axis rotation (for general maneuvering and excellent operability) and roll axis rotation (for maintaining straightness on uneven surfaces), allowing the cleaning path to remain stable while preserving steering flexibility.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the main body is laid down to clean narrow gaps, then adaptability is improved, but shaking severity increases due to reduced weight stability

Engineering Contradiction:
Improveadaptability to narrow gapsVSAvoidshaking resistance
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The cleaner dynamically adjusts its rotation axis based on body position. When the main body is laid down for cleaning narrow gaps, the system switches to roll axis rotation, which maintains cleaning effectiveness while reducing the severity of shaking caused by the reduced weight stability in this position.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the cleaner head performs yawing for steering, then maneuverability is improved, but unnecessary user operations increase due to poor straightness

Engineering Contradiction:
ImprovemaneuverabilityVSAvoidunnecessary operations
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The cleaner dynamically selects the optimal rotation axis based on operational needs. For general steering, yaw axis rotation provides excellent maneuverability. When straightness is required to avoid unnecessary corrections, the system switches to roll axis rotation, thereby reducing the time lost to unnecessary user operations while preserving maneuverability when needed.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20240090724A1cleaner
Publication Date: 2024.03.21 LG ELECTRONICS INC
  • US20240090724A1 patent drawing
  • US20240090724A1 patent drawing
  • US20240090724A1 patent drawing

AI summary

The present disclosure relates to a cleaner. Since the cleaner includes: a pitch member configured to rotate the main body about the pitch axis; a yaw member configured to rotate the main body about the yaw axis; and a roll member configured to rotate the main body about the roll axis, and limits a rotation of the roll member when the main body is in a first location, and allows a rotation of the roll member when the main body is in a second location, the cleaner secures excellent operability when the cleaner is in the first location which is higher, and excellent straightness when the cleaner is in the second location which is lower.