Magnetic Paint Can Holder for Stable Ladder Rung Attachment

Solution Overview

Problem

Existing solutions for attaching a paint bucket to a hollow rung extension ladder are often bulky, difficult to set up, and insecure, requiring multiple hands or steps, and can cause the paint bucket to swing or rotate, leading to instability and user concern about contents spilling.

Innovation Solution

A paint can holder with a shaft having friction areas at both ends that securely attach to the ladder, featuring a groove for the paint can handle and magnetic areas for accessories, allowing easy one-handed attachment and removal without complex assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rigid tubing members with snap-lock bands or threaded rods are used to attach paint cans to ladders, then the paint can is secured to the ladder, but the device becomes bulky and complex requiring multiple hands for setup

Engineering Contradiction:

Improvesecurity of paint can attachmentVSAvoidcomplexity of attachment mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical attachment systems (threaded rods, snap-lock bands, multiple components) with a simple magnetic attachment system. The magnet embedded in the holder securely attaches to the metal ladder rung without requiring threads, snaps, or multiple parts, thus simplifying the mechanism while maintaining secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent merges multiple functions into a single integrated holder component. The holder combines the attachment mechanism (magnet), the support structure (shaft with friction areas), and the paint can retention feature (groove) into one unified device, eliminating the need for separate bands, rods, and mounting components.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If rigid tubing members with multiple components are used to attach paint cans to ladders, then the paint can is secured to the ladder, but the device becomes bulky and difficult to set up

Engineering Contradiction:

Improvesecurity of paint can attachmentVSAvoidease of setup and use

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces complex mechanical attachment systems (threaded rods, snap-lock bands, multiple components) with a simple magnetic attachment system. The magnet embedded in the holder securely attaches to the metal ladder rung without requiring threads, snaps, or multiple parts, thus simplifying the mechanism while maintaining secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The friction areas on the shaft provide automatic engagement with the ladder rung upon insertion, requiring no additional fastening steps. The magnet automatically secures the holder to the rung, and the groove automatically retains the paint can handle, making the entire setup process self-service and requiring only one-handed operation.

Inventive Principle:

Principle #25Self-service

3Ease of operation

If rotatable annular support members are used to allow leveling of paint buckets, then the paint bucket can be leveled, but the device becomes unstable during paint extraction

Engineering Contradiction:

Improveleveling capability of paint bucketVSAvoidstability of paint bucket during use

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent provides stabilization precisely where needed - at the interface between the shaft and the ladder rung. The friction areas are located specifically at the top and bottom ends of the shaft to create localized high-friction zones that prevent rotation and slippage, while not restricting the necessary attachment functionality.

Inventive Principle:

Principle #3Local quality

4Reliability

If two-step attachment procedures with multiple hands are required to secure paint cans to ladders, then the paint can is securely attached, but the setup process becomes time-consuming and complex

Engineering Contradiction:

Improvesecurity of paint can attachmentVSAvoidtime required for setup

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The friction areas on the shaft provide automatic engagement with the ladder rung upon insertion, requiring no additional fastening steps. The magnet automatically secures the holder to the rung, and the groove automatically retains the paint can handle, making the entire setup process self-service and requiring only one-handed operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces complex mechanical attachment systems (threaded rods, snap-lock bands, multiple components) with a simple magnetic attachment system. The magnet embedded in the holder securely attaches to the metal ladder rung without requiring threads, snaps, or multiple parts, thus simplifying the mechanism while maintaining secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 provides a secure, easy-to-use, and stable attachment of paint cans and accessories to a ladder, ensuring the paint can holder remains steady and easy to operate with one hand, eliminating the need for complex setup and reducing the risk of spills.

Implementation Method 1

at least one magnetic area configured to magnetically hold a paintbrush or paint scraper

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

a top surface with a first friction area at the first end of the shaft, and a bottom surface with a second friction area at the second end of the shaft

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS8919713B2Paint can and accessories holder with magnets

Publication Date: 2014.12.30 REUSSER DENNIS W

AI summary

The disclosure and claims herein are directed to a paint can holder for attachment to a ladder, the paint can holder comprising a shaft having a first end, a second end, a top surface with a first friction area at the first end of the shaft, and a bottom surface with a second friction area at the second end of the shaft, configured such that inserting the shaft inside a rung of the ladder secures the paint can holder to the ladder, and a holding portion coupled to the second end of the shaft, the holding portion comprising a groove configured to receive a handle of a paint can, at least one opening, and at least one magnetic area.