Parapet Suspension System for Operator Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for maintaining or cleaning exterior building components, such as elevated windows, often require impractical or unsafe ground support systems, especially when direct access from the ground is not feasible.
Innovation Solution
A suspension system comprising first and second support assemblies that engage a building's parapet, with support lines allowing the operator to be suspended and moved laterally for efficient access and movement along the structure, utilizing adjustable frames and hardware for secure engagement and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ground support systems (ladders, scissor lifts, scaffolding) are used to access exterior walls, then worker access to elevated components is enabled, but the system becomes infeasible or unsafe when direct access from the ground is not available or convenient
Solution Approach 1:
The patent inverts the traditional ground-up support approach by suspending the support system from the building structure itself. The suspension system attaches to overhead structural elements and lowers operators to the exterior wall, enabling access where ground-based systems are infeasible.
Solution Approach 2:
The patent introduces a structural intermediary (the building's overhead structure) to facilitate operator access. By anchoring the suspension system to the building's existing structure, the system creates a new access pathway that bypasses ground-level constraints.
2Adaptability or versatility
If a suspension system is used to allow operator movement along the building, then access to multiple locations is enabled, but the system complexity increases with multiple support assemblies and lines
Solution Approach 1:
The patent designs support assemblies that can serve multiple functions: providing structural support, enabling lateral movement, and accommodating different operator positions. The system uses standardized assemblies that can be configured for various access scenarios, reducing overall complexity despite the multi-component nature of the system.
3Reliability
If support assemblies engage the parapet to support the operator, then secure attachment is achieved, but the system must accommodate various parapet sizes and shapes increasing design complexity
Solution Approach 1:
The patent employs dynamic engagement mechanisms that can adapt to different parapet configurations. The support assemblies incorporate adjustable and movable components that allow the system to securely engage with various parapet sizes, shapes, and orientations while maintaining reliable attachment.
Data Source
AI summary
A suspension system for supporting an operator from a parapet of a building has first and second support assemblies adapted to engage the parapet, a first support line extending from the first support assembly to the first operator, and a second support line extending from the second support assembly to the first operator. At least one of the first and second support assemblies engages the parapet to support the operator relative to building. To allow the operator to move relative to the building, the weight of the operator is supported by one of the first and second support assemblies while the other of the first and second support assemblies is moved.