Caster Assembly with Rotating Brackets for Ladder Stability
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Solution Overview
Problem
Current ladder configurations for elevated access are inefficient, unsafe, and difficult to maneuver, store, and transport, with users often disregarding safety protocols due to the inconvenience and instability of existing solutions.
Innovation Solution
A caster assembly integrated into ladders and elevated platforms, featuring a bracket system with rotatable wheels and springs that allow for stable deployment and easy movement, with a platform that can pivot and include a safety cage, enabling secure and efficient use while minimizing storage and transportation challenges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If planks or work platforms are coupled to ladders to provide larger support surface area, then user stability and comfort are improved, but the apparatus becomes difficult to assemble, disassemble, move, and store
Solution Approach 1:
The work platform is merged with the ladder structure by integrating it between the ladder's side rails, creating a unified apparatus that eliminates separate assembly steps. The platform becomes an inherent part of the ladder rather than an attached accessory.
Solution Approach 2:
The ladder structure is designed to serve multiple functions: it can be used as a standalone ladder, or the work platform can be deployed between the side rails to create an elevated work surface, allowing the same structure to adapt to different work requirements.
2Reliability
If safety constraints such as tie-off requirements are implemented, then user safety is improved, but worker efficiency and task completion speed decrease
Solution Approach 1:
The apparatus incorporates inherent safety features and stability mechanisms built into the structure before use, such as wide base support, platform guardrails, and secure coupling mechanisms, so that safety is provided automatically without requiring additional safety equipment or procedures that would slow down work.
3Length of moving object
If users climb higher on ladders than recommended to reach elevated locations, then access to higher areas is improved, but ladder stability and user safety deteriorate
Solution Approach 1:
Instead of increasing vertical height alone, the invention adds a horizontal dimension by deploying a work platform between the side rails, allowing users to access elevated areas through lateral extension rather than vertical climbing, thereby maintaining ladder stability while achieving greater reach.
4Reliability
If large apparatuses are designed to provide comprehensive safety and functionality, then user safety and feature completeness are improved, but the apparatus becomes difficult to position, maneuver, store, and transport
Solution Approach 1:
The apparatus is divided into separable components including the ladder frame, work platform, and support structures that can be independently handled and reconfigured, allowing the system to maintain safety features while reducing overall size for storage and transport.
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 caster assembly enhances stability and safety, reduces user effort in setup and teardown, and improves efficiency by allowing secure, comfortable access to elevated areas while maintaining compactness for storage and transport.
Implementation Method 1
a spring between a caster bracket and a drag bracket, the spring configured to bias the caster bracket and the drag bracket against each other
Data Source
AI summary
A caster assembly for use with varies structures, including ladders and elevated platforms is provided. In one embodiment, the caster assembly includes a first wheel coupled with a first bracket and configured to rotate about a first axis relative to the first bracket. A shaft is coupled to the first bracket as well as to a second bracket. The first bracket is rotatable relative to the second bracket about a second axis, which may be coincident with, or parallel to, an axis of the shaft. A third bracket is coupled with the shaft and is rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket. A second wheel is coupled with the third bracket, the second wheel being rotatable relative to the third bracket about a third axis.