Adjustable Ladder Stabilizer Assembly with Telescoping Legs
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Solution Overview
Problem
Existing ladder stabilizers fail to provide full adjustability in legs and braces, often require drilling holes into the ladder rails, and do not adequately prevent tipping, sliding, or weight-induced distortion, which can lead to accidents and safety hazards.
Innovation Solution
A fully adjustable ladder stabilizer assembly with length-adjustable legs and braces that can be attached through any hollow rung, featuring special joints allowing for maximum stability and the ability to set the ladder at the recommended 72° to 75.5° angle, preventing displacement and distortion under heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed-length legs are used in stabilizer assemblies, then the structure is simpler, but the adaptability to different ladder configurations and terrain conditions is reduced
Solution Approach 1:
The patent applies telescoping legs with adjustable lengths and telescoping braces that can be extended or retracted, transforming the static stabilizer structure into a dynamic one. This allows the stabilizer assembly to adapt to various ladder configurations and terrain conditions while maintaining structural integrity through controlled movement mechanisms.
Solution Approach 2:
The stabilizer assembly is divided into separate adjustable components including telescoping legs, telescoping braces, and modular connection points. This segmentation allows each component to be independently adjusted and configured, providing versatility without creating an overly complex integrated system.
2Reliability
If brackets are attached to the outside of the rails, then the stabilizer can be added to existing ladders, but the attachment strength and stability are reduced
Solution Approach 1:
The stabilizer assembly utilizes the hollow interior space of the ladder rails by inserting rods through the hollow rungs from the inside. This nesting approach allows the stabilizer components to be securely positioned within the existing ladder structure, providing strong attachment without requiring external brackets or modifications to the rail exterior.
3Reliability
If the stabilizer provides only lateral support, then the device complexity is reduced, but the prevention of slippage and weight bearing distortion is insufficient
Solution Approach 1:
The patent combines multiple support functions into a single integrated stabilizer assembly. The telescoping legs provide both lateral stabilization and vertical weight bearing support, while the telescoping braces simultaneously prevent slippage and maintain structural integrity. This merging of functions achieves comprehensive protection against displacement and distortion without requiring separate devices for each function.
Data Source
AI summary
A ladder stabilizing assembly for extension ladders has two length adjustable legs attached to opposing sides of the ladder at substantially the midpoint of the working distance of the ladder and two length adjustable braces attached to opposing sides of the ladder near the bottom and are securely attached to the legs. Rods through the hollow rungs attach the legs and braces to the ladder. Heim joints at one end of each leg and brace attach securely to the rods and enable the legs and braces to pivot and swivel for optimum stability placement. The ladder and stabilizer function as a single unit with a wide four point base. The legs and braces are calibrated to assist in setting the ladder at the standard angle for safe use. The stabilizing assembly prevents the ladder from sliding, tipping or other movement and enables the user to work wearing a safety harness.