Vacuum Nozzle Brush Roll Cleaning With Resilient Sheet Contact
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum cleaner nozzles with rotatable members, such as brush rolls, face difficulties in removing entangled fibrous materials like threads and hairs due to the high power required to rotate the brush roll during cleaning, which can impair the cleaning function.
Innovation Solution
A nozzle design featuring a rotatable member with a cleaning arrangement that includes a resilient sheet member and radially projecting members, allowing for efficient cleaning by providing resilient contact during rotation, reducing the power needed to maintain rotational speed and ensuring effective cleaning without hindering normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cleaning member presses against a friction member to remove entangled debris from the rotary brush, then the cleaning function is improved, but the power required to rotate the brush roll increases significantly
Solution Approach 1:
The cleaning member is designed to be movable between a resting position and a cleaning position, allowing it to dynamically engage with the rotary brush only when needed. This dynamic positioning reduces continuous power consumption while maintaining cleaning effectiveness when debris entanglement occurs
Solution Approach 2:
The rotary brush is divided into multiple friction members arranged along its length, allowing the cleaning member to address entangled debris at specific segments rather than requiring the entire brush to be cleaned simultaneously, reducing the overall power required
2Reliability
If a significant force is applied to thread off entangled threads by means of a cleaning member, then the cleaning effectiveness is improved, but the rotational speed of the brush roll decreases
Solution Approach 1:
The cleaning member can be moved between a resting position (when brush roll needs to maintain high speed) and a cleaning position (when cleaning effectiveness is prioritized), allowing dynamic adjustment between speed and cleaning effectiveness based on operational needs
Solution Approach 2:
The cleaning member contacts only specific segments of the rotary brush at a time rather than the entire brush length, applying cleaning force partially to maintain overall rotational speed while still achieving effective debris removal at the contact points
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
The solution enables efficient cleaning of entangled articles while minimizing the impact on rotational speed, ensuring proper cleaning function and reducing the total cleaning time by distributing entanglements along the length of the rotatable member.
Implementation Method 1
The cleaning member comprises a resilient sheet member capable of providing a resilient contact with at least one segment of the at least one support surface in the at least one cleaning position during rotation of the rotatable member
Data Source
AI summary
A vacuum cleaner nozzle having a rotatable member arranged around a longitudinal axis for picking up particles from a surface to be cleaned, and a cleaning arrangement for removing articles entangled on the rotatable member. The cleaning arrangement has at least one support surface provided on at least one radially projecting member, and at least one cleaning member movable between a resting position in which the cleaning member is arranged at a distance from the support surface and at least one cleaning position In the vicinity of the rotatable member. In cleaning position, the cleaning member, during rotation of the rotatable member, co-operates with at least one segment of the support surface to remove entangled articles from the rotatable member. The cleaning member includes a resilient sheet member capable of providing resilient contact with a segment of the support surface in the cleaning position during rotation of the rotatable member.