Roof-Mounted Hoisting Platform for Construction Load Transport
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Solution Overview
Problem
Current hoisting platform systems are limited in placement, require modifications to the roof or floor, are expensive, do not accelerate construction speed, are dangerous, and do not improve revenue or efficiency, often necessitating the use of large and expensive cranes.
Innovation Solution
A hoisting platform system featuring a roof lift with powered winches, I-beams, and tension-adjustable cables that can be anchored to a building's roof, allowing for efficient transport of loads between floors without requiring extensive modifications or additional support structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional hoisting systems are used, then loads can be transported between floors, but the systems require extensive modifications to roof or floor structures and are expensive
Solution Approach 1:
The hoisting system is divided into separate functional modules: roof-mounted winch unit, independent suspension cables, and detachable platform. This segmentation allows the system to be installed without extensive structural modifications, as each component can be independently attached to existing building features.
Solution Approach 2:
The patent introduces intermediate attachment points such as roof anchors and cable tensioning devices that mediate between the hoisting mechanism and the building structure. These intermediaries distribute loads across multiple existing structural elements rather than requiring dedicated support structures.
2Force
If large cranes are used for construction, then heavy loads can be lifted, but the equipment is expensive and requires significant space
Solution Approach 1:
The patent replaces traditional mechanical crane systems with a cable-based hoisting mechanism powered by a winch. This substitution maintains lifting capability while dramatically reducing equipment footprint and complexity, as the cable system can be routed through the building structure rather than requiring external crane infrastructure.
Solution Approach 2:
The hoisting system utilizes the vertical dimension by routing cables through the building's height, allowing loads to be lifted vertically without requiring horizontal space for crane operation. The platform can be positioned at various heights by cable length adjustment.
3Reliability
If permanent access equipment like elevators is installed, then reliable access is provided, but the cost and structural requirements are high
Solution Approach 1:
The patent employs a dynamic, movable platform system that can be repositioned vertically along cable paths, unlike fixed elevator shafts. The platform includes movable pulleys and adjustable cable tensions that allow it to adapt to different floor levels and positions, providing reliable access without permanent structural commitments.
Solution Approach 2:
The hoisting platform is designed as a universal access system that can serve multiple functions: transporting construction materials, providing worker access to various floors, and potentially serving as a temporary elevator. The same basic mechanism handles different load types and destinations.
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 system enables faster and more cost-effective construction by reducing the need for cranes, improving safety, and allowing for the use of additional equipment, while minimizing structural impact and facilitating easier project timelines.
Implementation Method 1
The roof lift includes a winch configured to lift objects
Implementation Method 2
tension-adjustable cables that can be anchored to a building's roof
Implementation Method 3
I-beams, and tension-adjustable cables that can be anchored to a building's roof
Data Source
AI summary
A hoisting platform system configured to permit transport of loads to and between floors of a building. The system includes a roof lift having a pair of beams resting on a roof and jutting out therefrom. The roof lift includes a winch coupled to and positioned over the beams. The roof lift includes a mounting structure extending upwardly from the beams with a plurality of cables coupled to and extending from a top region of the mounting structure downwardly at an angle. The cables are fixedly coupled to the roof. The hoisting platform system includes a floor deck disposed below the roof lift. The floor deck is coupled to a floor of the building and extending outwardly therefrom.