Spherical Rolling Vacuum Assembly for Stable Corner Maneuvering
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Solution Overview
Problem
Conventional vacuum cleaners face challenges in maneuverability and stability, particularly when navigating around obstacles and corners, due to the placement of the center of gravity and the design of the rolling assembly.
Innovation Solution
A cylinder type cleaning appliance with a substantially spherical surface engaging rolling assembly, where the center of gravity is located within the rolling assembly, and a separating apparatus is positioned outside, with a duct extending from the separating apparatus to the rolling assembly for conveying the fluid flow, allowing for improved maneuverability and stability through the use of inclined rotational axes of the rolling elements and a detachable duct for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the center of gravity is placed within the rolling assembly for improved maneuverability, then the appliance can navigate around obstacles more easily, but the separating apparatus must be positioned outside the rolling assembly increasing device complexity
Solution Approach 1:
The vacuum cleaner is divided into functionally independent segments: the spherical rolling assembly containing the center of gravity and rolling elements for maneuverability, and the separate chassis supporting the separating apparatus. This segmentation allows each component to be optimized independently while connected through a flexible duct system.
Solution Approach 2:
The separating apparatus is positioned in a different spatial dimension (outside and in front of the rolling assembly) rather than within it, resolving the space conflict by utilizing three-dimensional space arrangement. The flexible duct connects these separated components, enabling fluid flow transmission across the spatial gap.
2Productivity
If a rigid duct is used to convey fluid flow from the separating apparatus to the rolling assembly, then fluid flow is efficiently conveyed, but the duct cannot accommodate pivoting movement reducing adaptability
Solution Approach 1:
The duct system transitions from a static rigid structure to a dynamic flexible configuration. The flexible duct can pivot and bend to accommodate the relative movement between the separating apparatus and rolling assembly while maintaining fluid flow conveyance, adapting to changing operational positions.
Solution Approach 2:
A flexible duct made of flexible material replaces the rigid duct, allowing the duct to bend and pivot with the movement of the rolling assembly and separating apparatus while still effectively conveying the fluid flow between them.
3Ease of repair
If the duct is made detachable for easy maintenance, then maintenance accessibility is improved, but the connection reliability between separating apparatus and rolling assembly is reduced
Solution Approach 1:
The duct is designed as a detachable component that can be easily separated from both the separating apparatus and rolling assembly for maintenance purposes. This segmentation allows the duct to be removed, cleaned, or replaced independently without disassembling the entire vacuum cleaner system.
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
Enhances the appliance's ability to navigate complex spaces while maintaining stability and ease of use by optimizing the center of gravity and design of the rolling assembly, and allows for efficient dirt separation and maintenance.
Implementation Method 1
a substantially spherical surface engaging rolling assembly... inclined rotational axes of the rolling elements engage the floor surface
Implementation Method 2
a duct extending from the separating apparatus to the rolling assembly for conveying the fluid flow to the rolling assembly
Implementation Method 3
the centre of gravity (C) of the cleaning appliance is located within the rolling assembly
Data Source
Figure 1
Figure 2(a)
Figure 2(b)~2(c)
AI summary
A cleaning appliance includes a substantially spherical surface engaging rolling assembly having a fluid inlet for receiving a fluid flow and a system for drawing the fluid flow through the inlet, and a plurality of support members for supporting the rolling assembly as it is maneuvered over a surface. The center of gravity of the cleaning appliance is located within the rolling assembly.