Pivoting Surface-Treatment Handle for Stable Pressure on Vertical Surfaces
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Solution Overview
Problem
Existing devices for treating target surfaces, such as windows and floors, face challenges in maintaining consistent pressure and control, especially when dealing with large vertical surfaces, leading to issues like chatter or separation from the surface.
Innovation Solution
A device with a handle and head mounted in a pivotal relationship, allowing for articulation relative to each other, which includes a pivot mechanism with convex and concave portions or a rack and pinion system to prevent separation and maintain contact with the surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the head is fixed in a planar relationship to the handle, then the device structure is simple, but the user cannot maintain adequate pressure control when the head position transitions from between waist and shoulders to between waist and knees
Solution Approach 1:
The handle and head are mounted in a pivotal relationship, allowing the head to pivot relative to the handle during the stroke. This dynamic adjustment enables the user to maintain adequate pressure control on vertical surfaces by allowing the head angle to change as it transitions from above the waist to below the waist, resolving the pressure control issue while adding minimal complexity through a simple pivot mechanism.
2Ease of operation
If the device uses a fixed handle arrangement, then the device structure is simple, but the user encounters difficulty maintaining control and proper pressure during the transition around waist level
Solution Approach 1:
The pivotal mounting allows the head to dynamically adjust its angle relative to the handle during the stroke, particularly during the critical transition around waist level. This enables the user to maintain control and proper pressure throughout the entire stroke, from overhead to near the floor, without requiring a complex adjustable handle arrangement.
3Adaptability or versatility
If the head and handle are in fixed relationship, then manufacturing is simple, but the device cannot accommodate ergonomic needs for all stroke positions on large vertical surfaces
Solution Approach 1:
The pivotal relationship between handle and head provides the necessary adaptability to accommodate ergonomic needs for all stroke positions on large vertical surfaces. The head can pivot to maintain optimal angles during the stroke, improving ergonomics while keeping manufacturing simple through a straightforward pivot mechanism that requires minimal assembly complexity.
Data Source
AI summary
A device for treating a target, such as cleaning a window. The device has a handle and head, mounted in pivotal relationship to each other. When the head is placed in sliding, contacting relationship with the target surface the handle can pivot relative to the head for the ergonomic convenience of the user.