Stair Vacuum Nozzle Geometry for Concurrent Riser and Tread Suction
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Solution Overview
Problem
Standard vacuum cleaners and attachments are cumbersome and inefficient for cleaning the vertical risers of stairs, as they are designed primarily for horizontal surfaces.
Innovation Solution
A vacuum cleaner nozzle with a business end formed by opposed upper and lower extremities meeting at an outward corner, creating an unbroken front suction opening that can be applied to both the vertical riser and horizontal tread, ensuring concurrent suction along the entire height of the riser, width of the tread, and inward corner, allowing for effective cleaning of stairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard vacuum cleaner attachments are used, then horizontal surfaces can be cleaned effectively, but vertical risers of stairs cannot be cleaned efficiently
Solution Approach 1:
The nozzle is divided into distinct functional segments: a vertical extremity for cleaning risers, a horizontal extremity for cleaning treads, and an angled corner section for cleaning corners. Each segment is optimized for its specific cleaning task, allowing the single nozzle to effectively clean all stair surfaces that standard attachments cannot handle simultaneously.
2Ease of operation
If standard vacuum hose attachments are used, then simple cleaning tasks are easy, but cleaning stairs becomes cumbersome and challenging
Solution Approach 1:
The nozzle is designed as a universal cleaning tool that can clean multiple surfaces (vertical risers, horizontal treads, and corners) with a single attachment. The multi-functional design eliminates the need to switch between different attachments or use specialized tools for different stair surfaces, making the vacuum cleaner adaptable to all stair cleaning needs.
3Device complexity
If a single suction opening is used, then the device is simple, but concurrent suction along entire riser height and tread width cannot be achieved
Solution Approach 1:
The suction opening is extended from a single point or line into a two-dimensional planar surface that spans both the vertical and horizontal dimensions. This planar suction opening allows simultaneous suction across the entire height of the riser and width of the tread, dramatically increasing cleaning efficiency without adding complex mechanical components.
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 nozzle enables efficient cleaning of stairs by providing simultaneous suction along the entire height of the riser, width of the tread, and inward corner, making it easier to maintain stair cleanliness.
Implementation Method 1
A vacuum cleaner is a device that uses an air pump to create a partial vacuum to remove surface dust and dirt through suction applied to a cleaning head
Data Source
AI summary
A vacuum cleaner nozzle to clean a stair structure that includes a horizontal tread that meets a vertical riser at an inward corner includes a nozzle body having a business end formed with opposed upper and lower extremities forming an angle with one another and meeting at an outward corner. The opposed upper and lower extremities and the outward corner are to be concurrently applied to the vertical riser, the horizontal tread, and the inward corner, respectively. An unbroken front suction opening is formed in the upper extremity, the lower extremity, and the outward corner to assure a concurrent suction along substantially the entire height of the vertical riser, substantially the entire width of the horizontal tread, and the inward corner.