Stairway Work Platform With Adjustable Leg Assemblies for Stability
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Solution Overview
Problem
Existing work platforms and ladders are unsafe and damaging to stairway surfaces due to uneven support, and lack effective protection against scratching and slippage when used on stairways.
Innovation Solution
A leg pad system for work platforms, comprising adjustable leg assemblies with soft pads made of materials like PVC, which fit snugly onto stairway surfaces to provide level support and prevent damage, while enhancing grip and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard work platforms or ladders are used on stairways, then access to areas above the stairway is enabled, but the platform becomes unstable and unsafe due to uneven support surfaces
Solution Approach 1:
The work platform is divided into modular leg assemblies that can be independently adjusted. Each leg assembly includes telescopic sections and articulation joints that allow independent positioning to accommodate the uneven stairway surface, enabling the platform to adapt to varying support heights while maintaining overall stability
Solution Approach 2:
The leg assemblies incorporate movable and adjustable components including telescopic sections, articulation joints, and locking mechanisms. These dynamic elements allow the legs to be configured at different lengths and angles to match the uneven stairway surface, transforming a static platform into an adaptable structure that maintains stability on variable surfaces
2Reliability
If rigid leg assemblies are used to provide structural support, then platform stability is improved, but damage to the stairway surface occurs through scratching and marring
Solution Approach 1:
The foot portions of the leg assemblies are made from a soft, compliant material that is softer than the stairway surface material. This local quality change at the contact point allows the rigid leg structure to maintain structural integrity while the soft foot portions prevent scratching and marring of the stairway surface
Solution Approach 2:
The leg assemblies combine rigid structural materials with soft compliant foot portions. This composite construction allows the upper portion to provide necessary structural support while the lower foot portion interfaces gently with the stairway surface, simultaneously achieving both structural reliability and surface protection
3Object-affected harmful factors
If soft protective materials are placed on stairway surfaces, then protection from scratching is achieved, but slippage and movement of the platform occur
Solution Approach 1:
The foot portions utilize composite material properties combining softness for surface protection with high friction characteristics for slip resistance. The material is configured to be softer than the stairway surface to prevent scratching while simultaneously providing sufficient friction to prevent platform slippage and movement
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 leg pad system ensures safe, level support on stairways, protecting stairway surfaces from damage and preventing slippage, thereby ensuring worker safety and platform stability.
Implementation Method 1
provides resistance to slippage or movement by the work platform
Data Source
Figure 1A~1D
Figure 2
Figure 3
AI summary
A stairway work platform for a user includes a plank, a first leg assembly attached in proximity to a first end of the plank. The work platform includes an end pad directly attached to the first end of the plank which prevents damage to a vertical rise area of the stairway. The work platform includes a first bottom pad directly attached to a front of a first leg of the first leg assembly which prevents damage to a horizontal run area of the stairway while supporting a weight of the user. The work platform includes a second bottom pad directly attached to a front of a second leg of the first leg assembly which prevents damage to the horizontal run area of the stairway while supporting the weight of the user. The work platform includes a hinge bracket attached to the plank in proximity to the first end of the plank and to the first leg of the first leg assembly. In a stairway mode, the first leg assembly is in the closed position and is adapted to be disposed on a stair of the stairway and a second leg assembly is extended to a position which makes the plank level with respect to ground. A method for using a work platform. An end pad. A side-bottom pad.