Parallel-Handle Paint Roller Assembly for Even Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional paint roller brushes cause wrist and forearm fatigue due to their flimsy construction and require excessive effort to apply paint consistently, often leaving lines.
Innovation Solution
A paint roller assembly with a handle parallel to the roller, supported by frame members on both sides, allowing for even pressure application and reducing fatigue through ergonomic design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional wire frame construction is used, then the device is simple to manufacture, but the construction is flimsy and requires excessive effort to apply paint consistently
Solution Approach 1:
The patent applies composite materials by combining a rigid handle structure with a cylindrical core and frame members to create a hybrid construction that provides both strength and ease of manufacture. The handle is formed from a solid material that provides structural support, while the cylindrical core and frame members are made from separate components that can be easily manufactured and assembled.
Solution Approach 2:
The frame is segmented into multiple components including a handle, cylindrical core, and frame members that can be manufactured separately and then assembled. This segmentation allows each component to be optimized for its specific function while maintaining overall structural strength and ease of manufacture.
2Ease of operation
If the handle is positioned perpendicular to the roller, then the construction is simple, but the hand position causes wrist and forearm fatigue during extended use
Solution Approach 1:
The patent applies asymmetry by positioning the handle parallel to the cylindrical core rather than perpendicular, creating an asymmetric arrangement that ergonomically aligns with the user's arm and hand position. This asymmetric design reduces wrist and forearm fatigue during extended painting operations.
Solution Approach 2:
The handle arrangement transitions from a traditional perpendicular orientation to a parallel orientation along the longitudinal axis of the roller, effectively changing the dimensional relationship between components to achieve better ergonomic alignment with the user's body.
3Manufacturing precision
If pressure is applied to the end of the roller without frame connection, then paint can be applied, but a line of paint is left on the other side of the roller
Solution Approach 1:
The frame is divided into multiple frame members that are distributed around the cylindrical core, providing balanced support and pressure distribution across the roller surface. This segmentation prevents the formation of paint lines by ensuring uniform contact between the roller and the painted surface.
Solution Approach 2:
The frame members are combined with the handle and cylindrical core to create an integrated structure that distributes applied pressure evenly across the entire roller width. This merging of components ensures uniform paint distribution without leaving lines or streaks.
Data Source
AI summary
A paint roller assembly for allowing a sufficient amount of pressure to be applied for distributing paint evenly is disclosed. The paint roller assembly includes a pair of frame members. One frame member includes a handle. A cylindrical-shaped core is attached to another end of each of the frame members. In one aspect, the pair of frame members are coupled to each other at a first end by a variety of different coupling mechanisms. When assembled, a central, longitudinal axis of the handle is substantially parallel to a central, longitudinal axis of the cylindrical-shaped core, thereby allowing the user to apply sufficient pressure to more evenly distribute paint during use.