All in the head surface cleaning apparatus
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Solution Overview
Problem
All-in-the-head surface cleaning apparatuses have not been widely accepted due to limitations in maneuverability and filtration efficiency, with designs often resulting in a height that restricts cleaning under furniture and inadequate filtration capabilities.
Innovation Solution
The design incorporates a mounting hub with recessed rear wheels to enhance maneuverability, positions the suction motor adjacent to the rear end for reduced height, and includes a cyclone assembly with a dirt collection chamber that allows for compact form factor and efficient air treatment, enabling the entire surface cleaning head to fit under furniture while maintaining effective filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the surface cleaning head is designed with all components (suction motor, air treatment members) positioned in the head, then the design enables compact form factor and reduced height for cleaning under furniture, but the maneuverability is compromised due to weight concentration
Solution Approach 1:
The patent divides the surface cleaning apparatus into distinct functional modules: the surface cleaning head containing only cleaning components (brush, airflow channel), and a separate handle assembly containing the suction motor and air treatment members. This segmentation allows the head to be lightweight and low-profile for maneuverability and under-furniture cleaning, while the handle bears the weight of heavy components.
Solution Approach 2:
The patent extracts the suction motor and air treatment members from the surface cleaning head and relocates them to the handle assembly. This extraction reduces the weight and height of the surface cleaning head, enabling it to be more maneuverable and capable of cleaning under low-clearance furniture while maintaining all necessary cleaning functions.
2Weight of moving object
If the surface cleaning head is made lighter and smaller, then maneuverability and ability to clean under furniture improve, but the structural complexity increases to accommodate distributed components
Solution Approach 1:
The handle assembly serves multiple functions: it houses the suction motor, air treatment members, and acts as the structural connection between the surface cleaning head and the upper portion. This multi-functionality consolidates several components into a single assembly, reducing overall structural complexity despite the distributed component layout.
3Ease of operation
If the drive handle is positioned at the rear end, then the center of gravity is optimized for maneuverability, but the wheels may contact furniture when moving around obstacles
Solution Approach 1:
The patent positions the drive handle and mounting hub asymmetrically at the rear end of the surface cleaning head, creating an optimized center of gravity that enhances maneuverability. The asymmetric placement of the hub relative to the head's geometry allows the wheels to be positioned strategically to avoid furniture contact while maintaining handling balance.
4Volume of stationary object
If a filter is used for air treatment, then the design achieves compact form factor, but the filtration ability is limited compared to cyclonic separation
Solution Approach 1:
The patent replaces the traditional mechanical filter system with a cyclonic separation system that uses centrifugal force generated by rotating airflow to separate particulate matter from air. This substitution eliminates the need for filter media while providing superior filtration capability and maintaining a compact form factor suitable for the handle assembly.
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 improves maneuverability and filtration efficiency, allowing the surface cleaning head to fit under furniture and achieve air treatment comparable to leading upright cyclonic vacuum cleaners, with a dirt storage capacity that reduces the need for frequent emptying.
Implementation Method 1
a cyclone assembly with a cyclone chamber and a dirt collection chamber
Data Source
AI summary
An all in the head surface cleaning apparatus may include a surface cleaning head and a drive handle. The surface cleaning head may include a front end, a rear end, first and second laterally opposed sidewalls and a drive handle mounting hub positioned rearward of the rear end. The drive handle may be moveably mounted to the mounting hub between a storage position and an inclined floor cleaning position. The surface cleaning head may include a brush motor drivingly connected to a moveable brushing member. The brush motor may have a brush motor axis. The surface cleaning head may include a cyclone assembly having a cyclone chamber and a dirt collection chamber. The cyclone may have a longitudinal cyclone axis. The surface cleaning head may include a suction motor having a first end, a second end and a suction motor axis extending between the first and second ends.