Multifunctional Ladder With Locking And Guide Cable Height Adjustment
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Solution Overview
Problem
Existing multifunctional ladders lack locking mechanisms and extension attachments for safe and ergonomic access to truck bodies, posing safety risks and ergonomic challenges, especially in the logistics sector.
Innovation Solution
A multifunctional ladder with locking and manual/automatic guide cable for height adjustment, featuring a safe work platform and built-in handrails, designed to reach 2 to 10 meters, facilitating ergonomic access and easy transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a ladder is designed to reach higher heights (2 to 10 meters), then the ability to access higher areas is improved, but the stability and safety of the ladder deteriorates
Solution Approach 1:
The ladder employs a telescopic mechanism with multiple extendable sections that can be dynamically adjusted to different heights. The guide cable system provides dynamic stabilization throughout the extension process, ensuring safety is maintained regardless of the selected height configuration.
Solution Approach 2:
A guide cable acts as an intermediary stabilization element between the ladder structure and the support surface. This cable provides additional anchoring and prevents lateral movement or tipping, thereby maintaining reliability even when the ladder is extended to greater heights.
2Reliability
If a locking mechanism is added to the ladder, then the safety and stability are improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is designed to automatically engage and disengage based on the ladder's position and load conditions. The system self-regulates without requiring manual intervention, thereby improving stability while minimizing the operational complexity for the user.
Solution Approach 2:
The patent replaces complex manual locking systems with a more sophisticated integration of the guide cable tensioning system that provides automatic stabilization. This reduces the number of separate locking components needed while maintaining or improving reliability.
3Ease of operation
If the ladder is designed for easy transport on wheels, then the ease of operation is improved, but the structural strength may deteriorate
Solution Approach 1:
The ladder is divided into multiple telescopic sections that can be nested within each other, reducing the overall footprint for transport. The segmented structure maintains strength through distributed load paths while enabling compact storage and easy mobility on wheels.
Solution Approach 2:
The ladder frame is designed to serve multiple functions: it provides structural support during use, acts as a guide for the cable system, and serves as the mounting structure for wheels. This multi-functionality reduces the need for additional reinforcing elements that would increase weight and complexity.
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
Provides safe and ergonomic access to higher heights in various sectors, improving ergonomic conditions and reducing transport difficulties, while meeting safety standards like NR 35.
Implementation Method 1
manual and/or automatic guide cable, for adjustment of the necessary height
Implementation Method 2
locking and manual and/or automatic guide cable
Data Source
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AI summary
The objective is to obtain a Utility Model Patent for a ladder, which will be used in various sectors, such as civil and electrical areas, maintenance of gutters, lamps, lifelines, installation of panels, painting, placement of plasterboards, lining, washing of facades, washing of cabins and upper parts of trucks, buses and trailers, and also in the logistics sector, providing configurations that can be used to improve ergonomic conditions and work to be performed in grain unloading hoppers, in the activity of tarpaulin and untarpaulin of the truck body, as well as facilitating access to the body with fastening through chains or ratchet straps engaged in the body structure, consisting basically of a multifunctional ladder (E) on wheels (2), with locking and manual and/or automatic guide cable, for adjustment of the necessary height, designed to reach from 2 to 10 meters in height, bringing numerous advantages, such as providing safe and ergonomic access to higher variable heights, ease of transport, amongst others, dealing with a solution of an evolutionary nature, whose practical result obtained reports a differentiated and effective condition of use.