Paint Roller Stop Device with Gravity-Weighted Pivot
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Solution Overview
Problem
Conventional paint rollers often result in gaps between adjacent surfaces and accidental contact with ceilings or trim due to difficulty in judging the distance, leading to inefficiencies and increased risk of re-painting.
Innovation Solution
A paint roller stop device with a pivotally attached elongated stopper and weight assembly that maintains a constant angle with the surface, preventing unwanted contact and ensuring consistent spacing from ceilings or trim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the user paints as close to the abutting adjacent surface as possible to minimize gaps, then the painting coverage is improved, but the risk of the roller cover contacting the adjacent surface and applying paint unintentionally increases
Solution Approach 1:
The patent introduces a stop device as an intermediary component between the paint roller and the adjacent surface (ceiling or trim). This stop device includes a stop member that physically contacts the adjacent surface to prevent the roller cover from making unwanted contact, thereby mediating the conflict between achieving close painting coverage and avoiding unintentional paint application.
Solution Approach 2:
The stop device is designed to prevent unwanted contact before it can occur. By positioning the stop member to contact the adjacent surface first, the device creates a preliminary barrier that stops the roller's forward motion before the roller cover can accidentally apply paint to the ceiling or trim.
2Adaptability or versatility
If the user uses an extension pole to reach higher surfaces, then the painting height range is extended, but the user's line of sight is impaired making it more difficult to judge the paint safety zone from the ceiling or trim
Solution Approach 1:
The stop device serves as a tactile intermediary that provides physical feedback about the distance to the adjacent surface. Since the stop member contacts the ceiling or trim before the roller cover does, it gives the user audible and tactile cues that eliminate the need for visual judgment, thereby solving the line of sight impairment problem caused by using extension poles.
Solution Approach 2:
The stop device provides real-time feedback to the user through the contact between the stop member and the adjacent surface. This feedback mechanism (audible click or tactile resistance) informs the user that the correct distance has been achieved, compensating for the lack of visual feedback when using extension poles to reach high surfaces.
3Device complexity
If conventional paint rollers are used without a stop device, then the device complexity is low, but gaps between adjacent surfaces occur and accidental bumping of the ceiling or trim happens
Solution Approach 1:
The stop device introduces a simple intermediary component (stop member) that contacts the adjacent surface to maintain consistent spacing. This additional element, while increasing device complexity slightly, dramatically improves spacing consistency and prevents gaps between adjacent painted surfaces by ensuring the roller maintains the correct distance from ceilings and trim.
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 stop device allows for consistent and efficient painting with reduced risk of accidental contact, improving productivity and minimizing re-painting needs.
Implementation Method 1
a weight (112) that balances the rotation of the stopper (110) relative to the elongated shaft (116) to maintain a constant angle between the stopper elongated body (128) extended axis and the surface (122)
Data Source
AI summary
A stopper has an elongated body an upper edge and a lower edge displaced from one another along an extended axis that is essentially perpendicular to the upper edge and the lower edge. A weight attaches to the elongated arm essentially adjacent to the lower edge. An attachment assembly has an elongated shaft and a fastener for attaching the elongated shaft to the frame support member in an essentially overlying relation thereto with a proximal end being closer to the handle than the distal end. The stopper pivotally attaches to the elongated shaft distal end between the upper edge and the lower edge with the weight balancing the rotation of the stopper relative to the elongated shaft to maintain a constant angle between the stopper elongated body extended axis and the surface.