Cleaner Head Brushbar Pivot Design for Maintenance Without Air Leakage
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Solution Overview
Problem
Existing cleaner heads for vacuum cleaners face design constraints and air leakage issues when the motor-driven brushbar is placed inside, as removing the brushbar through the side can compromise suction pressure and alignment.
Innovation Solution
A cleaner head design where the brushbar is supported by a pivotable support member with a fixed end on the side wall, allowing the brushbar to pivot out for removal and replacement through a suction opening, reducing air leakage and maintaining suction pressure, and incorporating a retaining frame and cooling airflow pathway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the brushbar is removed through the side of the cleaner head, then the brushbar can be easily accessed for maintenance, but air leakage occurs compromising suction pressure
Solution Approach 1:
Instead of removing the brushbar through the side of the cleaner head as in conventional designs, this patent inverts the approach by enabling brushbar removal through the suction opening at the bottom. The support member is pivotably fixed to the side wall, allowing the brushbar to be pivoted out through the suction opening, thereby eliminating side openings that would compromise suction pressure while maintaining ease of maintenance.
2Volume of moving object
If the motor is placed inside the brushbar, then space is saved and brushbar width is maximized, but brushbar removal becomes more complex
Solution Approach 1:
The support member is divided into a fixed end that is pivotably attached to the side wall and a free end that supports the brushbar. This segmentation allows the brushbar with the integrated motor to be independently pivoted out through the suction opening without requiring disassembly of the motor or complex removal mechanisms, thereby maintaining compact space utilization while simplifying maintenance.
3Stability of the object's composition
If the support member is fixed rigidly to the side wall, then structural stability is improved, but brushbar removal and replacement becomes difficult
Solution Approach 1:
The support member transitions from a rigid fixed connection to a dynamic pivotable connection with the side wall. The pivoting joint allows the support member to rotate between a horizontal position during operation (providing stability) and a downward position for removal (enabling easy brushbar access through the suction opening), thus combining structural stability with operational ease.
Data Source
AI summary
A cleaner head including suction chamber having a suction opening; an agitator including a hollow body and supported the suction chamber by a support member, the support member having a first end that is fixed to a side wall of the suction chamber,and second end that free and over which the hollow body of the agitator can be slideably received; and a drive assembly forming part of the support member, and arranged to rotate the agitator about an axis. The fixed end of the support member is pivotal fixed to the side all of the suctionchamber such that the free end of the support member, together with the agitator supported thereon, can be pivoted to protrude out frome suction opening, to allow the agitator o be removed and replaced.