Ladder Stabilizer Kit with Level Indicator and Magnetic Tray

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Solution Overview

Problem

Ladders often pose safety risks due to improper angling and uneven surfaces, lack of adjustability, and inadequate storage for tools, leading to accidents and tool loss.

Innovation Solution

A ladder safety accessory kit featuring an upper stabilizer assembly for adjusting the top, a lower stabilizer assembly for uneven ground, a leveling measurement device for ensuring correct angling, and a storage tray for securing tools, which can be integrated with new or retrofitted onto existing ladders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a ladder is positioned against a structure, then it can be used to reach high areas, but the base of the ladder may slip if not properly angled

Engineering Contradiction:

Improveladder stabilityVSAvoidproper angling difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent incorporates a level indicator that provides visual feedback to the user about the ladder's angling. The indicator shows whether the ladder is at the correct angle (typically 75 degrees) by displaying a visual cue when the bubble aligns with the marked zone, allowing users to self-correct the positioning without external assistance

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The level indicator is integrated directly into the ladder structure, enabling the ladder to monitor and indicate its own positioning status. Users can independently assess and adjust the ladder's angle using the built-in indicator, eliminating the need for external measurement tools or assistance

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If the ground is uneven, then the ladder cannot be properly positioned, but most ladder bases are not adjustable

Engineering Contradiction:

Improveground surface adaptabilityVSAvoidbase structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces an adjustable base mechanism that allows the ladder to dynamically adapt to uneven ground conditions. The base can be adjusted in height and angle to compensate for ground irregularities, transforming a static structure into a dynamic one that responds to varying environmental conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The adjustable base mechanism serves multiple functions: it compensates for uneven ground, adjusts the ladder's overall height, and maintains proper angling. This multi-functional component addresses various positioning challenges with a single integrated solution

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If tools are placed on flat trays, then they can be accessed while working, but the tools are not secured and may fall

Engineering Contradiction:

Improvetool accessibilityVSAvoidtool security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent employs a magnetic field as an invisible counterforce to gravity's pull on tools. The magnetic tray uses magnetic attraction to counteract the downward force of gravity, securing tools in place while allowing them to remain accessible and removable when needed

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Data Source

PatentUS9010491B2Ladder safety accessory kit

Publication Date: 2015.04.21 TRANG BRIAN T

AI summary

A ladder safety accessory kit (5) for straight and extension ladders (1) having an upper stabilizer assembly (2) that makes the ladder adaptable to any shaped structure or surface, a lower stabilizer assembly (3) that makes the ladder adjustable to accommodate for uneven ground, a leveling measurement device (4) that allows a user to quickly and easily determine that the ladder is level and angled correctly and a storage tray (36) that provides a storage area for tools and other items. The ladder safety accessory kit may be integrated with new ladders or used to retrofit existing ladders.